/* ============================================================
   Common Consents — Stylesheet
   ============================================================ */

:root {
    --color-bg: #f8f9fb;
    --color-surface: #ffffff;
    --color-surface-raised: #ffffff;
    --color-primary: #1a5276;
    --color-primary-light: #2980b9;
    --color-primary-lighter: #d4e6f1;
    --color-primary-bg: #eaf2f8;
    --color-accent: #148f77;
    --color-accent-light: #1abc9c;
    --color-text: #2c3e50;
    --color-text-light: #5d6d7e;
    --color-text-muted: #95a5a6;
    --color-border: #e5e8eb;
    --color-border-light: #f0f2f4;
    --color-warning: #e67e22;
    --color-warning-bg: #fef5e7;
    --color-warning-border: #f5cba7;
    --color-danger: #c0392b;
    --color-danger-light: #e74c3c;
    --color-success: #27ae60;
    --color-common: #e74c3c;
    --color-common-bg: #fdedec;
    --color-uncommon: #e67e22;
    --color-uncommon-bg: #fef5e7;
    --color-rare: #8e44ad;
    --color-rare-bg: #f4ecf7;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,.12);
    --shadow-xl: 0 16px 50px rgba(0,0,0,.16);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-tap-highlight-color: transparent;
}

/* ---- Disclaimer Modal ---- */
.disclaimer-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(15, 23, 42, .7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 1;
    transition: opacity .4s ease;
}

.disclaimer-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.disclaimer-modal {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: 40px;
    max-width: 600px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideUp .4s ease;
}

@keyframes modalSlideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.disclaimer-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--color-warning-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--color-warning);
}

.disclaimer-modal h2 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--color-text);
}

.disclaimer-content {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 24px;
    font-size: .9rem;
    line-height: 1.7;
}

.disclaimer-content p {
    margin-bottom: 12px;
}

.disclaimer-content p:last-child { margin-bottom: 0; }

.disclaimer-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.disclaimer-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: .85rem;
    color: var(--color-text-light);
    cursor: pointer;
    line-height: 1.5;
    user-select: none;
}

.disclaimer-checkbox-label input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    margin-top: 2px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.disclaimer-checkbox-label input[type="checkbox"]:checked {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.disclaimer-checkbox-label input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 6px;
    height: 11px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.btn-accept {
    padding: 14px 28px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-family);
}

.btn-accept:hover:not(:disabled) {
    background: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-accept:disabled {
    opacity: .4;
    cursor: not-allowed;
}

/* ---- Header ---- */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-primary);
}

.logo-icon { color: var(--color-primary); }

.logo-text {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -.02em;
}

.main-nav {
    display: flex;
    gap: 4px;
}

.nav-link {
    background: none;
    border: none;
    font-family: var(--font-family);
    font-size: .875rem;
    font-weight: 500;
    color: var(--color-text-light);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-bg);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    width: 36px;
    height: 36px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border-radius: var(--radius-sm);
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-nav {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.mobile-nav.open {
    max-height: 300px;
    padding-top: 8px;
    padding-bottom: 16px;
}

.mobile-nav-link {
    background: none;
    border: none;
    font-family: var(--font-family);
    font-size: .95rem;
    font-weight: 500;
    color: var(--color-text-light);
    padding: 10px 16px;
    text-align: left;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-bg);
}

/* ---- Pages ---- */
.page { display: none; }
.page.active { display: block; }

.main-content {
    flex: 1;
}

/* ---- Hero ---- */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #2471a3 50%, var(--color-accent) 100%);
    color: white;
    padding: 80px 24px;
    text-align: center;
}

.hero-inner {
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: -.03em;
    margin-bottom: 16px;
    line-height: 1.15;
}

.hero-subtitle {
    font-size: 1.15rem;
    opacity: .9;
    line-height: 1.7;
    font-weight: 300;
}

/* ---- Search Bar ---- */
.search-container {
    margin-top: 28px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 16px;
    color: rgba(255,255,255,.5);
    pointer-events: none;
    z-index: 1;
}

.search-input {
    width: 100%;
    padding: 14px 44px 14px 48px;
    border: 1px solid rgba(255,255,255,.25);
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,.12);
    backdrop-filter: blur(10px);
    color: white;
    font-family: var(--font-family);
    font-size: .95rem;
    outline: none;
    transition: var(--transition);
}

.search-input::placeholder {
    color: rgba(255,255,255,.5);
}

.search-input:focus {
    border-color: rgba(255,255,255,.5);
    background: rgba(255,255,255,.18);
    box-shadow: 0 4px 20px rgba(0,0,0,.15);
}

.search-clear {
    position: absolute;
    right: 12px;
    background: rgba(255,255,255,.2);
    border: none;
    color: white;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    line-height: 1;
}

.search-clear:hover {
    background: rgba(255,255,255,.35);
}

/* Search result specialty tag */
.search-result-specialty {
    display: inline-block;
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--color-primary);
    background: var(--color-primary-bg);
    padding: 2px 8px;
    border-radius: 4px;
    margin-top: 4px;
}

/* No results */
.no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-muted);
}

.no-results svg {
    color: var(--color-border);
    margin-bottom: 16px;
}

.no-results h3 {
    font-size: 1.15rem;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.no-results p {
    font-size: .9rem;
}

/* ---- Specialty Cards Grid ---- */
.specialties-grid {
    max-width: 1100px;
    margin: -40px auto 60px;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    position: relative;
    z-index: 1;
}

.specialty-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all .25s ease;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.specialty-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-lighter);
}

.specialty-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--color-primary);
    transition: var(--transition);
}

.specialty-card:hover .specialty-card-icon {
    background: var(--color-primary);
    color: white;
}

.specialty-card h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text);
}

.specialty-card p {
    font-size: .875rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.5;
}

.card-link {
    font-size: .85rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* ---- Page Container ---- */
.page-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 32px 24px 60px;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    font-family: var(--font-family);
    font-size: .875rem;
    font-weight: 500;
    color: var(--color-primary);
    cursor: pointer;
    padding: 8px 0;
    margin-bottom: 16px;
    transition: var(--transition);
}

.back-btn:hover {
    color: var(--color-primary-light);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -.02em;
    margin-bottom: 8px;
}

.page-description {
    color: var(--color-text-light);
    font-size: 1rem;
    margin-bottom: 32px;
    line-height: 1.6;
}

/* ---- Procedures List ---- */
.procedures-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.procedure-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    cursor: pointer;
    transition: all .2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.procedure-item:hover {
    border-color: var(--color-primary-lighter);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.procedure-item-text h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-text);
}

.procedure-item-text p {
    font-size: .85rem;
    color: var(--color-text-light);
}

.procedure-item-arrow {
    color: var(--color-text-muted);
    flex-shrink: 0;
    transition: var(--transition);
}

.procedure-item:hover .procedure-item-arrow {
    color: var(--color-primary);
    transform: translateX(3px);
}

/* Touch & Active States */
@media (hover: none) {
    .specialty-card:active {
        transform: scale(0.98);
        box-shadow: var(--shadow-sm);
    }
    .procedure-item:active {
        background: var(--color-primary-bg);
        transform: none;
    }
    .nav-link:active, .mobile-nav-link:active {
        background: var(--color-primary-bg);
    }
}

/* ---- Procedure Article ---- */
.procedure-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -.02em;
    margin-bottom: 32px;
    color: var(--color-text);
}

.procedure-body section {
    margin-bottom: 32px;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-border-light);
}

.section-header svg { color: var(--color-primary); flex-shrink: 0; }

.section-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.procedure-description p {
    font-size: .95rem;
    margin-bottom: 12px;
    line-height: 1.8;
}

.procedure-description p:last-child { margin-bottom: 0; }

/* Benefits list */
.benefits-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.benefits-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: .95rem;
    line-height: 1.6;
}

.benefit-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #e8f8f0;
    color: var(--color-success);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 3px;
}

/* Risk categories */
.risk-category {
    margin-bottom: 20px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.risk-category:last-child { margin-bottom: 0; }

.risk-category-header {
    padding: 12px 18px;
    font-size: .9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.risk-tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .03em;
}

.risk-common .risk-category-header { background: var(--color-common-bg); color: var(--color-common); }
.risk-common .risk-tag { background: var(--color-common); color: white; }

.risk-uncommon .risk-category-header { background: var(--color-uncommon-bg); color: var(--color-uncommon); }
.risk-uncommon .risk-tag { background: var(--color-uncommon); color: white; }

.risk-rare .risk-category-header { background: var(--color-rare-bg); color: var(--color-rare); }
.risk-rare .risk-tag { background: var(--color-rare); color: white; }

.risk-list {
    list-style: none;
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.risk-list li {
    font-size: .9rem;
    line-height: 1.6;
    padding-left: 16px;
    position: relative;
}

.risk-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.risk-common .risk-list li::before { background: var(--color-common); }
.risk-uncommon .risk-list li::before { background: var(--color-uncommon); }
.risk-rare .risk-list li::before { background: var(--color-rare); }

/* Superscript references */
.ref {
    color: var(--color-primary-light);
    font-size: .75em;
    cursor: pointer;
    font-weight: 600;
    vertical-align: super;
    text-decoration: none;
}

.ref:hover {
    text-decoration: underline;
}

/* Collapsible References Section */
.references-toggle {
    width: 100%;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    font-family: var(--font-family);
    font-size: .95rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.references-toggle:hover {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.references-toggle svg {
    transition: transform .2s ease;
}

.references-toggle.open svg {
    transform: rotate(180deg);
}

.references-content {
    display: none;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    padding: 20px;
}

.references-content.open { display: block; }

.references-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.references-list li {
    font-size: .85rem;
    color: var(--color-text-light);
    line-height: 1.6;
    padding-left: 28px;
    position: relative;
}

.ref-number {
    position: absolute;
    left: 0;
    font-weight: 700;
    color: var(--color-primary);
}

.references-list a {
    color: var(--color-primary-light);
    text-decoration: none;
}

.references-list a:hover { text-decoration: underline; }

/* Education Disclaimer Banner */
.edu-banner {
    background: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 28px;
    font-size: .85rem;
    line-height: 1.6;
    color: #7d6608;
}

.edu-banner svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-warning);
}

/* ---- Ad Containers ---- */
.ad-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    overflow: hidden;
}

.ad-container::before {
    content: 'Sponsored';
    display: block;
    font-size: .65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--color-text-muted);
    margin-bottom: 6px;
    text-align: right;
    opacity: .6;
}

.ad-home-banner {
    margin-bottom: 48px;
}

.ad-home-banner ins {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.ad-in-feed {
    padding: 0;
    margin: 4px 0;
}

.ad-in-feed ins {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.ad-in-article {
    padding: 0;
    margin: 8px 0 32px;
    border-top: 1px solid var(--color-border-light);
    border-bottom: 1px solid var(--color-border-light);
    padding: 16px 0;
}

.ad-in-article::before {
    margin-bottom: 8px;
}

.ad-in-article ins {
    border-radius: var(--radius-md);
    overflow: hidden;
}

/* ---- Footer ---- */
.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 24px;
    text-align: center;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    font-size: .8rem;
    color: var(--color-text-muted);
}

.ad-disclosure {
    margin-top: 6px;
    font-size: .7rem;
    opacity: .5;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .main-nav { display: none; }
    .mobile-menu-btn { display: flex; }

    .hero { padding: 50px 20px; }
    .hero h1 { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }

    .search-input {
        font-size: 16px; /* Prevents iOS zoom on focus */
        padding: 12px 40px 12px 44px;
    }

    .search-input::placeholder {
        font-size: .85rem;
    }

    .specialties-grid { margin-top: -24px; gap: 12px; }
    .specialty-card { padding: 24px 20px; touch-action: manipulation; }

    .page-container { padding: 20px 16px 40px; }
    .page-title { font-size: 1.5rem; }
    .procedure-title { font-size: 1.5rem; }

    .procedure-item {
        padding: 16px;
        min-height: 56px;
        touch-action: manipulation;
    }

    .back-btn {
        min-height: 44px;
        touch-action: manipulation;
    }

    .mobile-nav-link {
        min-height: 48px;
        display: flex;
        align-items: center;
        touch-action: manipulation;
    }

    .disclaimer-modal {
        padding: 24px;
        max-height: 90vh;
        margin: 10px;
    }
    .disclaimer-modal h2 { font-size: 1.25rem; }

    .disclaimer-content {
        padding: 16px;
        font-size: .85rem;
    }

    .btn-accept {
        min-height: 48px;
        touch-action: manipulation;
    }

    .risk-category-header { padding: 10px 14px; font-size: .85rem; }
    .risk-list { padding: 12px 14px; }
    .risk-list li { font-size: .85rem; }
    .section-header h2 { font-size: 1.1rem; }

    .ad-home-banner,
    .ad-in-feed { display: none; }
}

/* Extra small screens */
@media (max-width: 380px) {
    .hero { padding: 36px 16px; }
    .hero h1 { font-size: 1.65rem; }
    .specialties-grid { padding: 0 16px; }
    .specialty-card { padding: 20px 16px; }
    .specialty-card h2 { font-size: 1rem; }
    .disclaimer-modal { padding: 20px 16px; }
}

/* Safe area support for notched phones */
@supports (padding: env(safe-area-inset-bottom)) {
    .site-footer {
        padding-bottom: calc(24px + env(safe-area-inset-bottom));
    }
    .site-header .header-inner {
        padding-left: calc(24px + env(safe-area-inset-left));
        padding-right: calc(24px + env(safe-area-inset-right));
    }
    .mobile-nav {
        padding-left: calc(24px + env(safe-area-inset-left));
        padding-right: calc(24px + env(safe-area-inset-right));
    }
}

/* Scroll to top button */
.scroll-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: 90;
    touch-action: manipulation;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:active {
    transform: scale(0.92);
}

@supports (padding: env(safe-area-inset-bottom)) {
    .scroll-to-top {
        bottom: calc(24px + env(safe-area-inset-bottom));
    }
}