/* ========================================
   UPTOWN HEALING — LEARN SHELL (SHARED), luxe
   Used by all /learn/* pages.
   Cormorant + Inter, dark editorial banner,
   squared hairline surfaces, dark-to-sage buttons,
   sage kept as accent.
   NOTE: the --diagram-* functional safety palette and the
   heatmap, urine, comparison-role, and phase colors are
   intentionally LEFT UNCHANGED — they encode medical meaning
   (safe / caution / danger), not brand.
   The do/dont lists, callout boxes, stat strips, med-items and the
   food-highlight term sit on white "editorial" surfaces with hairline
   rules, slim sage/gold accents and round check / minus markers.
   All brand tints + shadows are derived from the base tokens via
   color-mix() — recolour the palette from one place.
   The filter-bar result count (.lf-header-count) is hidden; the search
   box is anchored right in its place.
======================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Refined sage green palette */
    --primary: #7FA99B;
    --primary-light: #9BBDB0;
    --primary-dark: #6A8F81;
    --secondary: #C5D6CE;
    --accent: #8FB5A5;
    --light: #F7F9F8;
    --dark: #2F3E36;
    --text: #3A4A42;
    --white: #ffffff;
    --gray-50: #FAFBFA;
    --gray-100: #F5F7F6;
    --gray-200: #E8EBE9;
    --gray-300: #D5DAD7;
    --gray-400: #B4BCB8;
    --gray-500: #93A099;
    --gray-600: #728078;
    --gray-700: #556058;
    --gray-800: #3A4A42;
    --gray-900: #1F2821;

    /* Luxe tokens */
    --lux-ink: #1b231d;
    --lux-paper: #f6f5f1;
    --lux-line: #e4e2db;
    --lux-muted: #8c8f88;
    --lux-gold: #c2a14d;

    /* ── Derived brand tints (tethered to the tokens above) ──────────────
       color-mix(... N%, transparent) == that colour at N% opacity. Change a
       base colour above and every tint + shadow below follows automatically.
       Nothing here is a free-floating hex/rgba. */
    --primary-soft:   color-mix(in srgb, var(--primary) 16%, transparent); /* marker / chip fills */
    --primary-faint:  color-mix(in srgb, var(--primary)  8%, transparent); /* subtle active bg */
    --primary-ring:   color-mix(in srgb, var(--primary) 12%, transparent); /* input focus ring */
    --primary-glow:   color-mix(in srgb, var(--primary) 30%, transparent); /* banner radial */
    --primary-marker: color-mix(in srgb, var(--primary) 32%, transparent); /* highlight ink */

    --lux-gold-light: #d9c084;                                              /* gradient companion */
    --lux-gold-deep:  #997a28;                                              /* gold text on light */
    --lux-gold-soft:  color-mix(in srgb, var(--lux-gold) 16%, transparent);

    /* Shadows — sage- and ink-tinted, all tethered */
    --shadow-sm:      0 1px 2px rgba(0, 0, 0, 0.05);                        /* neutral, kept */
    --shadow:         0 2px 8px   color-mix(in srgb, var(--primary)  8%, transparent);
    --shadow-lg:      0 8px 24px  color-mix(in srgb, var(--primary) 12%, transparent);
    --shadow-lift:    0 18px 40px color-mix(in srgb, var(--gray-900) 8%, transparent); /* card hover */
    --shadow-card:    0 18px 44px color-mix(in srgb, var(--gray-900) 9%, transparent); /* do/dont hover */
    --shadow-card-sm: 0 12px 30px color-mix(in srgb, var(--gray-900) 7%, transparent); /* med-item hover */
    --shadow-panel:   0 12px 32px color-mix(in srgb, var(--dark) 16%, transparent);    /* dropdown panel */

    --border-radius: 0;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Font tokens */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', sans-serif;
    --font-nav: 'Libre Baskerville', serif;

    --success: #6A8F81;
    --warning: #D4A574;
    --error: #b3453a;

    /* Diagram-specific colors (functional safety palette — UNCHANGED) */
    --diagram-safe: #4a8c6f;
    --diagram-safe-bg: #e8f5ee;
    --diagram-safe-text: #1a5c3a;
    --diagram-caution: #b8860b;
    --diagram-caution-bg: #fdf3dc;
    --diagram-caution-text: #7a5a08;
    --diagram-danger: #c0392b;
    --diagram-danger-bg: #fde8e6;
    --diagram-danger-text: #8b1a10;
}

/* Base styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    letter-spacing: -0.01em;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ========================================
   HEADER (matches shop/recipes/account)
======================================== */

.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--lux-line);
    position: sticky;
    top: 0;
    z-index: 10000;
    box-shadow: none;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
}

.header-main {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 40px;
    padding: 20px 0;
    min-height: 80px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 32px;
    justify-content: flex-start;
    position: relative;
}

.header-left nav {
    display: flex;
    gap: 28px;
    position: relative;
}

.nav-item {
    position: relative;
}

.header-left nav a {
    color: var(--text);
    text-decoration: none;
    font-family: var(--font-nav);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    transition: var(--transition);
    padding: 8px 0;
    white-space: nowrap;
    display: block;
}

.header-left nav a:hover {
    color: var(--primary);
}

/* Dropdown Menu Styles */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    border: 1px solid var(--lux-line);
    box-shadow: var(--shadow-lg);
    min-width: 800px;
    padding: 40px;
    display: none;
    z-index: 10000;
    margin-top: 8px;
}

.nav-item:hover .dropdown-menu {
    display: block;
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.dropdown-column h4 {
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--dark);
    margin-bottom: 20px;
    border-bottom: 1px solid var(--lux-line);
    padding-bottom: 12px;
}

.dropdown-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dropdown-column ul li {
    margin-bottom: 12px;
}

.dropdown-column ul li a {
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: var(--transition);
    display: block;
    padding: 4px 0;
    text-transform: none;
    letter-spacing: 0;
    font-family: var(--font-sans);
}

.dropdown-column ul li a:hover {
    color: var(--primary);
    padding-left: 8px;
}

/* ========================================
   LEARN MEGA-MENU (two-zone)
   The Learn nav dropdown is taller than the others (two zones:
   everyday wellness + transplant care). These rules extend the
   shared .dropdown-menu above. The max-height + overflow-y cap
   keeps the menu inside the viewport so the lower (Transplant
   Care) zone stays reachable by scrolling instead of spilling
   off-screen. The 120px subtracts the sticky header height plus
   a small bottom gap — lower it to fill more of the screen.
======================================== */

.dropdown-menu-learn {
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.dropdown-menu-learn .learn-zone-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--primary);
    margin: 0 0 14px;
}

.dropdown-menu-learn .learn-zone-divider {
    height: 1px;
    background: var(--gray-200, #e5e7eb);
    margin: 22px 0;
}

.dropdown-menu-learn .dropdown-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 66%;
}

/* CENTER - Logo */
.header-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    display: block;
    flex-shrink: 0;
}

.logo img {
    height: 64px;
    width: auto;
    display: block;
}

/* RIGHT SIDE - Actions */
.header-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 24px;
}

.header-wrapper {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 40px;
}

.header-wrapper .logo {
    grid-column: 2;
    justify-self: center;
}

.header-actions {
    grid-column: 3;
    display: flex;
    align-items: center;
    gap: 24px;
    justify-content: flex-end;
    flex-shrink: 0;
    white-space: nowrap;
}

/* Search Icon Button */
.search-toggle {
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    padding: 8px;
    font-size: 18px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-toggle:hover {
    color: var(--primary);
}

/* Account Link */
.account-link a {
    color: var(--text);
    text-decoration: none;
    font-family: var(--font-nav);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.12em;
    transition: var(--transition);
    white-space: nowrap;
}

.account-link a:hover {
    color: var(--primary);
}

.account-link i {
    display: none;
}

.account-label {
    font-family: var(--font-nav);
    font-size: 12px;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0.12em;
}

/* Cart Link */
.cart-link a {
    color: var(--text);
    text-decoration: none;
    font-size: 20px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    position: relative;
}

.cart-link a:hover {
    color: var(--primary);
}

.cart-link i {
    font-size: 24px;
    position: relative;
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -10px;
    background: var(--dark);
    color: var(--white);
    border-radius: 50%;
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 0 4px;
    font-family: var(--font-sans);
}

/* ========================================
   MAIN NAVIGATION (secondary nav row)
======================================== */

.main-navigation {
    background-color: white;
    border-bottom: 1px solid var(--lux-line);
    padding: 0;
    position: relative;
    z-index: 1;
}

.main-navigation .container {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.main-navigation .menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
    justify-content: center;
    gap: 0;
}

.main-navigation .menu::-webkit-scrollbar {
    display: none;
}

.main-navigation .menu-item {
    white-space: nowrap;
}

.main-navigation .menu-item a {
    display: block;
    padding: 18px 28px;
    color: var(--text);
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    transition: var(--transition);
    position: relative;
}

.main-navigation .menu-item a:hover {
    color: var(--primary);
}

.main-navigation .menu-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.main-navigation .menu-item a:hover::after {
    width: 70%;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text);
}

/* Mobile Menu Styles */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 20px;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu nav {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mobile-menu nav a {
    color: var(--text);
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    padding: 12px 0;
    border-bottom: 1px solid var(--lux-line);
    transition: color 0.2s;
}

.mobile-menu nav a:hover {
    color: var(--primary);
}

/* ========================================
   PAGE BANNER — dark editorial, green as glow
======================================== */

.page-banner {
    background:
        radial-gradient(1000px 420px at 82% -20%, var(--primary-glow), transparent 60%),
        linear-gradient(160deg, var(--gray-900) 0%, var(--dark) 60%, var(--gray-900) 100%);
    padding: 72px 0;
    margin-bottom: 0;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 16px;
    border: 1px solid rgba(197, 214, 206, 0.25);
    background: none;
    opacity: 1;
}

.page-banner h1 {
    font-family: var(--font-display);
    font-size: clamp(32px, 4.5vw, 56px);
    margin-bottom: 8px;
    color: white;
    position: relative;
    z-index: 2;
    font-weight: 500;
    letter-spacing: 0;
    line-height: 1.08;
}

.page-banner h1::before {
    content: 'Uptown Healing';
    display: block;
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 11px;
    letter-spacing: 0.42em;
    text-transform: uppercase;
    color: var(--secondary);
    margin-bottom: 18px;
}

.page-banner .subtitle {
    font-size: 14px;
    color: var(--secondary);
    position: relative;
    z-index: 2;
    font-family: var(--font-sans);
    letter-spacing: 0.04em;
    line-height: 1.9;
}

/* ========================================
   TAB NAVIGATION
======================================== */

.tab-navigation {
    background: white;
    padding: 30px 0 20px;
    border-bottom: 1px solid var(--lux-line);
    position: relative;
    z-index: 90;
    box-shadow: none;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.tab-button {
    background: var(--white);
    border: 1px solid var(--lux-line);
    color: var(--gray-600);
    padding: 12px 24px;
    border-radius: 0;
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-button:hover {
    background: var(--lux-paper);
    color: var(--dark);
    border-color: var(--dark);
}

.tab-button.active {
    background: var(--dark);
    color: white;
    border-color: var(--dark);
    box-shadow: none;
}

.tab-button i {
    font-size: 14px;
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ========================================
   MAIN CONTENT LAYOUT
======================================== */

.main-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 40px 80px;
}

.content-section {
    margin-bottom: 50px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--lux-line);
    letter-spacing: -0.01em;
}

.section-subtitle {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 28px;
    line-height: 1.7;
    font-family: var(--font-sans);
}

.intro-text {
    font-size: 16px;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 35px;
    font-family: var(--font-sans);
}

/* ========================================
   GENERIC INFO BOXES — white editorial cards
   White surfaces with a hairline border, a slim sage
   left rule (gold on the closing .info-note), a serif
   heading underlined by a hairline, and round check
   markers in place of the Font Awesome ticks.
======================================== */

.organ-responsibilities,
.warning-box,
.lifestyle-recommendations,
.info-note {
    margin: 30px 0;
    padding: 28px 30px;
    background: var(--white);
    border: 1px solid var(--lux-line);
    border-left: 2px solid var(--primary);
    border-radius: 0;
}

/* the closing note gets a gold rule so it reads as the "final word" */
.info-note {
    border-left-color: var(--lux-gold);
}

.organ-responsibilities h4,
.warning-box h4,
.lifestyle-recommendations h4 {
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 600;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--lux-line);
    color: var(--dark);
}

.organ-responsibilities ul,
.warning-box ul,
.lifestyle-recommendations ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.organ-responsibilities li,
.warning-box li,
.lifestyle-recommendations li {
    margin-bottom: 12px;
    padding-left: 32px;
    position: relative;
    line-height: 1.7;
    color: var(--text);
    font-family: var(--font-sans);
}

.organ-responsibilities li::before,
.warning-box li::before,
.lifestyle-recommendations li::before {
    content: '\2713';
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 10px;
    position: absolute;
    left: 0;
    top: 0.05em;
    width: 19px;
    height: 19px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.info-note p {
    margin: 0;
    line-height: 1.75;
    color: var(--text);
    font-family: var(--font-sans);
}

/* Section Headers (generic h4) */
h4 {
    color: var(--dark);
    font-size: 20px;
    font-weight: 600;
    margin: 30px 0 15px;
    font-family: var(--font-display);
}

/* ========================================
   MEDICATION/ITEM LIST PATTERN
======================================== */

.med-list {
    list-style: none;
    padding: 0;
    margin: 30px 0;
}

.med-item {
    background: var(--white);
    border: 1px solid var(--lux-line);
    border-radius: 0;
    padding: 22px 24px;
    margin-bottom: 16px;
    transition: var(--transition);
}

.med-item:hover {
    transform: translateY(-2px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-card-sm);
}

.med-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
    display: block;
    font-family: var(--font-display);
}

.med-description {
    color: var(--text);
    line-height: 1.6;
    font-size: 15px;
    font-family: var(--font-sans);
}

/* Inline highlighted term — soft sage "marker" instead of a grey chip */
.food-highlight {
    background: linear-gradient(transparent 62%, var(--primary-marker) 62%);
    color: var(--dark);
    padding: 0 1px;
    border-radius: 0;
    font-weight: 600;
    font-size: inherit;
    font-family: var(--font-sans);
}

/* ========================================
   BENEFITS GRID PATTERN
======================================== */

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
    margin-top: 35px;
}

.benefit-card {
    background: white;
    border: 1px solid var(--lux-line);
    border-radius: 0;
    padding: 28px 24px;
    box-shadow: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    display: none;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lift);
    border-color: var(--primary-light);
}

.benefit-title {
    font-size: 19px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
}

.benefit-title::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    width: 28px;
    height: 28px;
    background: var(--dark);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
}

.benefit-card p {
    color: var(--text);
    line-height: 1.7;
    font-size: 15px;
    font-family: var(--font-sans);
}

/* ========================================
   SERVICES GRID PATTERN
======================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 35px;
}

.service-card {
    background: white;
    border: 1px solid var(--lux-line);
    border-radius: 0;
    padding: 32px 28px;
    box-shadow: none;
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lift);
    border-color: var(--primary-light);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--white);
    border: 1px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: var(--primary-dark);
}

.service-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 16px;
    font-family: var(--font-display);
}

.service-card p {
    color: var(--text);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 15px;
    font-family: var(--font-sans);
}

/* ========================================
   BUTTONS — dark fill, sage hover, squared
======================================== */

.btn {
    background: var(--dark);
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: 0;
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    transition: var(--transition);
    text-align: center;
    display: inline-block;
    text-decoration: none;
}

.btn:hover {
    background: var(--primary);
    transform: translateY(-1px);
    box-shadow: none;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--dark);
    color: var(--dark);
}

.btn-outline:hover {
    background: var(--dark);
    color: white;
}

/* ========================================
   INTERACTIVE RESEARCH / DIAGRAM FRAMEWORK
======================================== */

.research-section {
    margin-top: 50px;
    padding-top: 40px;
    border-top: 1px solid var(--lux-line);
}

.research-section-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.research-section-title i {
    font-size: 20px;
    color: var(--primary);
}

.research-intro {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 30px;
    font-family: var(--font-sans);
}

/* ========================================
   DIAGRAM CARDS
======================================== */

.diagram-card {
    background: var(--white);
    border: 1px solid var(--lux-line);
    border-radius: 0;
    padding: 28px;
    margin-bottom: 28px;
    box-shadow: none;
    transition: var(--transition);
}

.diagram-card:hover {
    border-color: var(--primary-light);
    box-shadow: none;
}

.diagram-header {
    margin-bottom: 20px;
}

.diagram-title {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.diagram-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
    font-family: var(--font-sans);
    margin: 0;
}

/* Diagram Body (for SVG content) */
.diagram-body {
    width: 100%;
    min-height: 100px;
    margin-bottom: 16px;
    overflow: hidden;
    border-radius: 0;
}

.diagram-body svg {
    width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   DIAGRAM SELECTOR BUTTONS
======================================== */

.diagram-selector {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.diagram-select-btn {
    padding: 7px 14px;
    border-radius: 0;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--lux-line);
    background: var(--white);
    color: var(--text);
    transition: var(--transition);
    font-family: var(--font-sans);
}

.diagram-select-btn:hover {
    border-color: var(--dark);
    color: var(--dark);
}

.diagram-select-btn.active {
    border-color: var(--dark);
    background: var(--dark);
    color: var(--white);
    box-shadow: none;
}

/* ========================================
   DIAGRAM CONTROLS (Prev/Next buttons)
======================================== */

.diagram-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--lux-line);
}

.diagram-btn {
    padding: 8px 18px;
    border-radius: 0;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--lux-line);
    background: var(--white);
    color: var(--text);
    transition: var(--transition);
    font-family: var(--font-sans);
    display: flex;
    align-items: center;
    gap: 6px;
}

.diagram-btn:hover {
    border-color: var(--dark);
    color: var(--dark);
    background: var(--lux-paper);
}

.diagram-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.diagram-step-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
    font-family: var(--font-sans);
}

/* ========================================
   DIAGRAM SLIDER
======================================== */

.diagram-slider-label {
    font-size: 13px;
    color: var(--gray-600);
    font-family: var(--font-sans);
    margin-right: 8px;
}

.diagram-slider {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    outline: none;
    margin: 0 12px;
}

.diagram-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 3px solid var(--white);
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    transition: var(--transition);
}

.diagram-slider::-webkit-slider-thumb:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

.diagram-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 3px solid var(--white);
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.diagram-slider-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-dark);
    min-width: 70px;
    text-align: right;
    font-family: var(--font-sans);
}

/* ========================================
   DIAGRAM INFO PANEL
======================================== */

.diagram-info-panel {
    background: var(--lux-paper);
    border-radius: 0;
    padding: 18px 20px;
    margin-top: 14px;
    border-left: 3px solid var(--primary);
}

.diagram-info-panel p {
    font-size: 14px;
    color: var(--text);
    line-height: 1.7;
    margin: 0;
    font-family: var(--font-sans);
}

.diagram-info-panel .info-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
    font-family: var(--font-display);
}

.info-title-spaced {
    margin-top: 14px;
}

/* ========================================
   DIAGRAM METRICS ROW
======================================== */

.diagram-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 14px;
}

.diagram-metric-card {
    background: var(--lux-paper);
    border-radius: 0;
    padding: 12px 14px;
    text-align: center;
    border: 1px solid var(--lux-line);
}

.diagram-metric-label {
    font-size: 11px;
    color: var(--lux-muted);
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.diagram-metric-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    font-family: var(--font-sans);
}

/* ========================================
   DIAGRAM TOGGLE (Healthy / X)
======================================== */

.diagram-toggle-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.diagram-toggle {
    position: relative;
    width: 42px;
    height: 24px;
    background: var(--gray-300);
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.25s ease;
    flex-shrink: 0;
}

.diagram-toggle.active {
    background: var(--primary);
}

.diagram-toggle-knob {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    background: var(--white);
    border-radius: 50%;
    transition: transform 0.25s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.diagram-toggle.active .diagram-toggle-knob {
    transform: translateX(18px);
}

.diagram-toggle-label {
    font-size: 13px;
    color: var(--gray-600);
    font-family: var(--font-sans);
}

/* ========================================
   DIAGRAM SAFETY BADGES (functional palette — squared, colors kept)
======================================== */

.diagram-badge-row {
    margin-bottom: 10px;
}

.diagram-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 0;
    font-family: var(--font-sans);
}

.diagram-badge.safe {
    background: var(--diagram-safe-bg);
    color: var(--diagram-safe-text);
}

.diagram-badge.caution {
    background: var(--diagram-caution-bg);
    color: var(--diagram-caution-text);
}

.diagram-badge.danger {
    background: var(--diagram-danger-bg);
    color: var(--diagram-danger-text);
}

.diagram-badge-context {
    font-size: 11px;
    color: var(--gray-500);
    margin-left: 6px;
    font-family: var(--font-sans);
}

/* ========================================
   HEATMAP STYLES (functional palette — kept)
======================================== */

.heatmap-legend {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
    align-items: center;
}

.heatmap-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--gray-600);
    font-family: var(--font-sans);
}

.heatmap-dot {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
}

.heatmap-dot.heatmap-safe { background: var(--diagram-safe); }
.heatmap-dot.heatmap-caution { background: var(--diagram-caution); }
.heatmap-dot.heatmap-danger { background: var(--diagram-danger); }

.heatmap-container {
    overflow-x: auto;
    margin-bottom: 10px;
}

.heatmap-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-sans);
    font-size: 12px;
    min-width: 550px;
}

.heatmap-table th {
    padding: 8px 6px;
    font-weight: 600;
    color: var(--gray-600);
    text-align: center;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border-bottom: 1px solid var(--lux-line);
}

.heatmap-table th:first-child {
    text-align: left;
    padding-left: 12px;
}

.heatmap-table td {
    padding: 6px;
    text-align: center;
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
    transition: background 0.15s ease;
}

.heatmap-table td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--text);
    padding-left: 12px;
    cursor: default;
    font-size: 13px;
}

.heatmap-table td:hover:not(:first-child) {
    background: var(--gray-100);
}

.heatmap-table td.heatmap-active {
    background: var(--gray-100);
    outline: 2px solid var(--primary);
    outline-offset: -2px;
    border-radius: 0;
}

.heatmap-cell-dot {
    width: 22px;
    height: 22px;
    border-radius: 0;
    display: inline-block;
    opacity: 0.8;
    transition: var(--transition);
}

.heatmap-table td:hover .heatmap-cell-dot {
    opacity: 1;
    transform: scale(1.15);
}

.heatmap-cell-dot.hm-safe { background: var(--diagram-safe); }
.heatmap-cell-dot.hm-caution { background: var(--diagram-caution); }
.heatmap-cell-dot.hm-danger { background: var(--diagram-danger); }

/* ========================================
   PHASE NAVIGATION
======================================== */

.phase-nav {
    display: flex;
    gap: 0;
    margin-bottom: 16px;
    border-radius: 0;
    overflow: hidden;
    border: 1px solid var(--lux-line);
}

.phase-btn {
    flex: 1;
    padding: 12px 8px;
    font-size: 12px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    background: var(--white);
    color: var(--gray-600);
    transition: var(--transition);
    font-family: var(--font-sans);
    text-align: center;
    border-right: 1px solid var(--lux-line);
}

.phase-btn:last-child {
    border-right: none;
}

.phase-btn:hover {
    background: var(--lux-paper);
    color: var(--primary);
}

.phase-btn.active {
    background: var(--dark);
    color: var(--white);
}

.phase-sub-selector {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.phase-sub-btn {
    padding: 6px 12px;
    border-radius: 0;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--lux-line);
    background: var(--white);
    color: var(--text);
    transition: var(--transition);
    font-family: var(--font-sans);
}

.phase-sub-btn:hover {
    border-color: var(--dark);
}

.phase-sub-btn.active {
    border-color: var(--dark);
    background: var(--lux-paper);
    color: var(--dark);
}

/* ========================================
   ANIMATED FLOW LINES (for SVG diagrams)
======================================== */

@keyframes flowAnimation {
    to { stroke-dashoffset: -30; }
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.flow-animated {
    stroke-dasharray: 8 6;
    animation: flowAnimation 1.5s linear infinite;
}

.pulse-animated {
    animation: pulseGlow 2s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
    .flow-animated,
    .pulse-animated {
        animation: none;
    }
}

/* ========================================
   STEP DOTS (used by stepper diagrams)
======================================== */

.nephron-dots {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 8px;
}

.nephron-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gray-300);
    transition: var(--transition);
}

.nephron-dot.active {
    background: var(--primary);
    transform: scale(1.3);
}

/* ========================================
   GENERIC CONTENT PATTERNS
======================================== */

/* Phase markers for time-based content (functional phase colors kept) */
.phase-marker {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 0;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    font-family: var(--font-sans);
}

.phase-marker.phase-acute { background: #c0392b; }
.phase-marker.phase-mid { background: #D4A017; }
.phase-marker.phase-late { background: #7FA99B; }

/* Comparison cards (functional role colors kept) */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin: 24px 0;
}

.comparison-card {
    background: var(--lux-paper);
    border-left: 3px solid var(--primary);
    border-radius: 0;
    padding: 18px;
}

.comparison-card.role-gentle { border-left-color: #7FA99B; }
.comparison-card.role-strong { border-left-color: #c0392b; }
.comparison-card.role-long { border-left-color: #8E5028; }
.comparison-card.role-smart { border-left-color: #6A5ACD; }

.comparison-card h5 {
    font-size: 17px;
    font-weight: 600;
    color: var(--dark);
    margin: 0 0 6px;
    font-family: var(--font-display);
}

.comparison-card .card-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    font-family: var(--font-sans);
}

.comparison-card p {
    font-size: 14px;
    line-height: 1.6;
    margin: 0 0 8px;
    color: var(--text);
    font-family: var(--font-sans);
}

.comparison-card ul {
    margin: 8px 0 0;
    padding-left: 18px;
    font-size: 13px;
    line-height: 1.65;
}

.comparison-card li {
    margin-bottom: 4px;
    color: var(--text);
    font-family: var(--font-sans);
}

/* Stats callout for outcome numbers — editorial serif figures */
.stats-callout {
    background: var(--white);
    border: 1px solid var(--lux-line);
    border-radius: 0;
    padding: 28px 30px;
    margin: 24px 0;
}

.stats-callout h5 {
    font-size: 22px;
    font-weight: 600;
    margin: 0 0 22px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--lux-line);
    color: var(--dark);
    font-family: var(--font-display);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 24px 12px;
}

.stat-tile {
    background: transparent;
    padding: 0;
    border-radius: 0;
    text-align: center;
    border: none;
}

.stat-tile .stat-num {
    display: block;
    font-size: 36px;
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.01em;
    color: var(--dark);
    font-family: var(--font-display);
}

.stat-tile .stat-label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-500);
    margin-top: 10px;
    line-height: 1.4;
    font-family: var(--font-sans);
}

/* Do/Don't lists — refined editorial cards.
   White surfaces on hairline rules, a slim accent bar across the top
   (sage for supportive choices, gold for "go easy on"), a serif heading
   underlined by a hairline, custom round check / minus markers, and a
   soft lift on hover. */
.do-dont-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    margin: 30px 0;
}

.do-list,
.dont-list {
    position: relative;
    padding: 30px 30px 28px;
    border-radius: 0;
    background: var(--white);
    border: 1px solid var(--lux-line);
    overflow: hidden;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.35s ease,
                border-color 0.35s ease;
}

/* slim accent bar along the top edge */
.do-list::before,
.dont-list::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
}

.do-list::before {
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.dont-list::before {
    background: linear-gradient(90deg, var(--lux-gold), var(--lux-gold-light));
}

.do-list:hover,
.dont-list:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
    border-color: var(--gray-300);
}

.do-list h5,
.dont-list h5 {
    color: var(--dark);
    margin: 0 0 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--lux-line);
    font-size: 23px;
    font-weight: 600;
    font-family: var(--font-display);
}

.do-list ul,
.dont-list ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.do-list li,
.dont-list li {
    position: relative;
    padding-left: 32px;
    margin-bottom: 13px;
    font-size: 14.5px;
    line-height: 1.6;
    color: var(--text);
    font-family: var(--font-sans);
}

.do-list li:last-child,
.dont-list li:last-child {
    margin-bottom: 0;
}

.do-list li::before,
.dont-list li::before {
    position: absolute;
    left: 0;
    top: 0.08em;
    width: 19px;
    height: 19px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    line-height: 1;
}

.do-list li::before {
    content: '\2713';
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.dont-list li::before {
    content: '\2212';
    background: var(--lux-gold-soft);
    color: var(--lux-gold-deep);
}

/* ========================================
   COLOR GUIDE STRIP (urine, stool, etc. — functional borders kept)
======================================== */

.urine-color-guide {
    margin-bottom: 16px;
}

.urine-color-strip {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
}

.urine-swatch {
    flex: 1;
    text-align: center;
    border-radius: 0;
    padding: 14px 4px 10px;
    border: 2px solid var(--gray-300);
    transition: var(--transition);
}

.urine-swatch:nth-child(2),
.urine-swatch:nth-child(3) {
    border-color: var(--diagram-safe);
}

.urine-swatch:nth-child(1),
.urine-swatch:nth-child(5) {
    border-color: var(--diagram-danger);
}

.urine-swatch:nth-child(4) {
    border-color: var(--diagram-caution);
}

.urine-swatch-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--text);
    font-family: var(--font-sans);
    margin-bottom: 4px;
}

.urine-swatch-verdict {
    display: block;
    font-size: 10px;
    font-weight: 700;
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.urine-good { color: var(--diagram-safe-text); }
.urine-warn { color: var(--diagram-caution-text); }
.urine-bad { color: var(--diagram-danger-text); }

/* ========================================
   LEARN FILTERS (lf-) — SHARED
======================================== */

/* ───── HEADER ROW (filters on the left, search on the right; count hidden) ───── */
.lf-header {
    display: flex;
    justify-content: space-between;   /* filters anchored left, search anchored right */
    align-items: center;
    flex-wrap: wrap;                  /* wraps gracefully if the row gets tight */
    gap: 20px;
    margin: 30px 0 18px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--lux-line);
}

/* The filter bar now lives inside the header row (above the divider, level with
   the search box), so it no longer needs its own block-level margin/padding. */
.lf-header .lf-bar {
    margin: 0;
    padding: 0;
}

/* Result count intentionally hidden (e.g. "150 herbs", "100 foods").
   Still computed in JS — just not shown. Remove this rule to bring it back. */
.lf-header-count {
    display: none;
    font-size: 15px;
    color: var(--gray-700);
    font-family: var(--font-sans);
}

.lf-header-count strong {
    color: var(--dark);
    font-weight: 700;
}

.lf-header-search {
    position: relative;
    width: 320px;
    max-width: 100%;
}

.lf-header-search i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
    font-size: 13px;
    pointer-events: none;
}

.lf-header-search input {
    width: 100%;
    padding: 10px 14px 10px 38px;
    border: 1px solid var(--lux-line);
    border-radius: 0;
    font-size: 14px;
    color: var(--text);
    background: white;
    transition: all 0.25s ease;
    font-family: var(--font-sans);
}

.lf-header-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-ring);
}

/* ───── THE FILTER BAR ───── */
.lf-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 18px;
    padding: 6px 0;
}

.lf-dropdown {
    position: relative;
}

.lf-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    background: white;
    border: 1px solid var(--lux-line);
    border-radius: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: var(--font-sans);
    white-space: nowrap;
}

.lf-trigger:hover {
    border-color: var(--primary);
    color: var(--primary-dark);
}

.lf-chevron {
    font-size: 9px;
    color: var(--gray-500);
    transition: transform 0.25s ease;
}

.lf-dropdown.lf-open .lf-trigger {
    border-color: var(--primary);
    color: var(--primary-dark);
    background: var(--lux-paper);
}

.lf-dropdown.lf-open .lf-chevron {
    transform: rotate(180deg);
    color: var(--primary-dark);
}

.lf-dropdown.lf-has-active .lf-trigger {
    border-color: var(--primary);
    background: var(--primary-faint);
    color: var(--primary-dark);
}

.lf-count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--primary);
    color: white;
    font-size: 11px;
    font-weight: 700;
    border-radius: 50%;
    margin-left: 2px;
    font-family: var(--font-sans);
}

/* ───── DROPDOWN PANEL ───── */
.lf-panel {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 240px;
    max-height: 360px;
    overflow-y: auto;
    background: white;
    border: 1px solid var(--lux-line);
    border-radius: 0;
    box-shadow: var(--shadow-panel);
    padding: 8px 0;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0s linear 0.2s;
}

.lf-dropdown.lf-open .lf-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.lf-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 16px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text);
    transition: background 0.15s ease;
    user-select: none;
    font-family: var(--font-sans);
}

.lf-option:hover {
    background: var(--lux-paper);
}

.lf-option input[type="checkbox"],
.lf-option input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
    flex-shrink: 0;
}

.lf-option-label {
    flex: 1;
}

.lf-option-count {
    font-size: 12px;
    color: var(--gray-500);
    font-family: var(--font-sans);
}

/* ───── DROPDOWN FOOTER ───── */
.lf-footer {
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    border-top: 1px solid var(--lux-line);
    margin-top: 6px;
    position: sticky;
    bottom: 0;
    background: white;
}

.lf-footer button {
    background: none;
    border: none;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 0;
    transition: all 0.25s ease;
    font-family: var(--font-sans);
}

.lf-footer button:hover {
    color: var(--primary-dark);
    background: var(--lux-paper);
}

.lf-footer .lf-apply {
    color: var(--primary-dark);
}

/* ───── BAR DIVIDER + RESET ───── */
.lf-bar-divider {
    width: 1px;
    height: 24px;
    background: var(--lux-line);
    margin: 0 4px;
}

.lf-reset {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 14px;
    background: none;
    border: none;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    transition: all 0.25s ease;
    border-radius: 0;
    font-family: var(--font-sans);
}

.lf-reset:hover {
    color: var(--primary-dark);
    background: var(--lux-paper);
}

.lf-reset i {
    font-size: 11px;
}

/* ───── ACTIVE FILTERS ROW ───── */
.lf-active-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    padding: 12px 16px;
    background: var(--lux-paper);
    border-radius: 0;
    border: 1px solid var(--lux-line);
}

.lf-active-row[hidden] {
    display: none;
}

.lf-active-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--gray-600);
    font-weight: 700;
    margin-right: 4px;
    font-family: var(--font-sans);
}

.lf-active-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.lf-active-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: white;
    color: var(--dark);
    padding: 4px 6px 4px 12px;
    border: 1px solid var(--primary);
    border-radius: 0;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-sans);
}

.lf-active-pill button {
    background: none;
    border: none;
    color: var(--primary-dark);
    cursor: pointer;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    font-size: 10px;
}

.lf-active-pill button:hover {
    background: var(--primary);
    color: white;
}

/* ========================================
   FOOTER (matches shop/recipes/account)
======================================== */

.site-footer {
    background: var(--dark);
    color: var(--gray-300);
    padding: 80px 0 0;
    margin-top: 80px;
}

.footer-widgets {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo img {
    height: 80px;
    margin-bottom: 24px;
}

.footer-description {
    color: var(--gray-400);
    font-family: var(--font-sans);
    font-size: 13.5px;
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.widget-title {
    color: var(--white);
    font-family: var(--font-sans);
    font-size: 12px;
    margin-bottom: 24px;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.widget-menu {
    list-style: none;
}

.widget-menu li {
    margin-bottom: 12px;
}

.widget-menu a {
    color: var(--gray-400);
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 13.5px;
    font-weight: 300;
    transition: color 0.2s;
}

.widget-menu a:hover {
    color: var(--white);
}

.footer-newsletter {
    background: rgba(255, 255, 255, 0.03);
    padding: 32px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0;
}

.newsletter-description {
    color: var(--gray-400);
    font-family: var(--font-sans);
    font-size: 13.5px;
    font-weight: 300;
    margin-bottom: 20px;
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    font-family: var(--font-sans);
    font-size: 14px;
}

.newsletter-form input::placeholder {
    color: var(--gray-500);
}

.newsletter-submit {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-weight: 500;
    cursor: pointer;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    transition: var(--transition);
    border-radius: 0;
}

.newsletter-submit:hover {
    background: var(--primary-dark);
}

.newsletter-privacy {
    color: var(--gray-500);
    font-family: var(--font-sans);
    font-size: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 30px 0;
    text-align: center;
}

.copyright {
    color: var(--gray-500);
    font-family: var(--font-sans);
    font-size: 12px;
    letter-spacing: 0.04em;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--dark);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 8px 24px color-mix(in srgb, var(--gray-900) 18%, transparent);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px color-mix(in srgb, var(--gray-900) 22%, transparent);
    background: var(--primary);
}

/* ========================================
   RESPONSIVE DESIGN
======================================== */

@media (max-width: 1200px) {
    .header-container, .container, .main-content {
        padding-left: 30px;
        padding-right: 30px;
    }

    .footer-widgets {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-newsletter {
        grid-column: 1 / -1;
    }

    .header-left nav {
        gap: 20px;
    }

    .header-left nav a {
        font-size: 10.5px;
        letter-spacing: 0.16em;
    }

    .dropdown-menu {
        min-width: 700px;
    }

    .dropdown-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .header-main {
        grid-template-columns: auto 1fr auto;
        gap: 20px;
    }

    .mobile-menu-toggle, .menu-toggle {
        display: block;
    }

    .header-left nav {
        display: none;
    }

    .page-banner h1 {
        font-size: 32px;
    }

    .main-content {
        padding: 50px 30px 70px;
    }

    .section-title {
        font-size: 28px;
    }

    .tab-navigation {
        padding: 20px 0;
    }

    .tab-button {
        padding: 10px 20px;
        font-size: 11px;
    }

    .footer-widgets {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .benefits-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }

    .diagram-card {
        padding: 20px;
    }

    .diagram-metrics {
        grid-template-columns: repeat(2, 1fr);
    }

    .diagram-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .phase-nav {
        flex-wrap: wrap;
    }

    .phase-btn {
        flex: 1 1 auto;
        min-width: 80px;
    }
}

@media (max-width: 768px) {
    .page-banner {
        padding: 56px 0;
    }

    .page-banner h1 {
        font-size: 28px;
    }

    .main-content {
        padding: 40px 20px 60px;
    }

    .section-title {
        font-size: 24px;
    }

    .header-container, .container {
        padding: 0 20px;
    }

    .footer-newsletter {
        grid-column: auto;
        padding: 25px 20px;
    }

    .newsletter-form {
        flex-direction: row;
    }

    .widget-title {
        text-align: center;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .diagram-card {
        padding: 16px;
        margin-bottom: 20px;
    }

    .diagram-title {
        font-size: 17px;
    }

    .diagram-selector {
        gap: 4px;
    }

    .diagram-select-btn {
        padding: 5px 10px;
        font-size: 11px;
    }

    .diagram-metrics {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .diagram-metric-card {
        padding: 10px;
    }

    .diagram-metric-label {
        font-size: 10px;
    }

    .diagram-metric-value {
        font-size: 14px;
    }

    .diagram-controls {
        flex-direction: column;
        gap: 8px;
    }

    .diagram-controls .diagram-slider {
        width: 100%;
    }

    .heatmap-table {
        font-size: 11px;
    }

    .heatmap-table th,
    .heatmap-table td {
        padding: 5px 4px;
    }

    .heatmap-cell-dot {
        width: 18px;
        height: 18px;
    }

    .phase-nav {
        border-radius: 0;
    }

    .phase-btn {
        padding: 10px 6px;
        font-size: 11px;
    }

    .research-section-title {
        font-size: 18px;
    }

    .diagram-info-panel {
        padding: 14px 16px;
    }

    .diagram-info-panel p {
        font-size: 13px;
    }

    .urine-color-strip {
        gap: 3px;
    }

    .urine-swatch {
        padding: 10px 2px 8px;
    }

    .urine-swatch-label {
        font-size: 9px;
    }

    .urine-swatch-verdict {
        font-size: 8px;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .stats-callout {
        padding: 24px 22px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-tile .stat-num {
        font-size: 28px;
    }

    .lf-header {
        flex-direction: column;
        align-items: stretch;
    }

    .lf-header-search {
        width: 100%;
    }

    .lf-trigger {
        padding: 8px 12px;
        font-size: 12px;
    }

    .lf-panel {
        min-width: 220px;
    }
}

@media (max-width: 600px) {
    .do-dont-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

@media (max-width: 576px) {
    .page-banner h1 {
        font-size: 24px;
    }

    .section-title {
        font-size: 22px;
    }

    .logo img {
        height: 50px;
    }

    .account-label {
        font-size: 12px;
    }

    .footer-logo img {
        height: 60px;
    }

    .tab-buttons {
        padding: 0 20px;
    }

    .tab-button {
        padding: 8px 16px;
        font-size: 11px;
    }

    .diagram-card {
        padding: 14px;
    }

    .diagram-selector {
        gap: 3px;
    }

    .diagram-select-btn {
        padding: 4px 8px;
        font-size: 10px;
    }

    .diagram-toggle-row {
        flex-wrap: wrap;
    }

    .diagram-toggle-label {
        font-size: 11px;
    }

    .diagram-badge {
        font-size: 11px;
        padding: 3px 10px;
    }

    .heatmap-legend {
        flex-wrap: wrap;
        gap: 10px;
    }

    .phase-btn {
        font-size: 10px;
        padding: 8px 4px;
    }

    .diagram-btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    .research-section-title {
        font-size: 16px;
        flex-wrap: wrap;
    }

    .urine-swatch-label {
        font-size: 8px;
    }

    .urine-swatch-verdict {
        font-size: 7px;
    }

    .urine-swatch {
        padding: 8px 2px 6px;
        border-width: 1.5px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .comparison-card {
        padding: 14px;
    }

    .comparison-card h5 {
        font-size: 16px;
    }

    .phase-marker {
        font-size: 11px;
        padding: 3px 10px;
    }

    .do-list,
    .dont-list {
        padding: 22px 22px 20px;
    }

    .do-list h5,
    .dont-list h5 {
        font-size: 19px;
    }

    .do-list li,
    .dont-list li {
        font-size: 14px;
    }

    .lf-bar {
        gap: 6px;
    }

    .lf-trigger {
        padding: 7px 10px;
        font-size: 11px;
    }

    .lf-active-pill {
        font-size: 11px;
    }
}