:root {
    --ink: #1f2a30;
    --muted: #5b6770;
    --brand: #048288;
    --brand-dark: #045c61;
    --brand-soft: #e9f6f7;
    --brand-contrast: #f4fafb;
    --accent-gold: #c9b46a;
    --accent-gold-dark: #a69048;
    --accent-gold-soft: #f3ebd1;
    --accent: #048288;
    --accent-dark: #045c61;
    --accent-soft: #d7e7ea;
    --surface: #ffffff;
    --surface-alt: #f4fafb;
    --border: #d7e7ea;
    --shadow-sm: 0 8px 24px rgba(17, 29, 35, 0.08);
    --shadow-md: 0 14px 30px rgba(17, 29, 35, 0.12);
    --hero-grad-start: #f4fafb;
    --hero-grad-end: #e9f6f7;
    --cta-grad-start: #eef8f9;
    --cta-grad-end: #e6f2f4;
    --footer-grad-start: #f4fafb;
    --footer-grad-end: #e6f2f4;
    --promo-grad-start: #048288;
    --promo-grad-end: #0c949b;
    --dash-1-start: #048288;
    --dash-1-end: #045c61;
    --dash-2-start: #0c949b;
    --dash-2-end: #046e73;
    --dash-3-start: #c9b46a;
    --dash-3-end: #a69048;
    --dash-4-start: #5b6770;
    --dash-4-end: #3f4a52;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Source Sans 3', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--ink);
    background:
        radial-gradient(1200px 600px at 8% -10%, #f1f5f2 0%, transparent 60%),
        radial-gradient(900px 400px at 90% 5%, #eef2f1 0%, transparent 55%),
        linear-gradient(180deg, #f8f8f5 0%, #edf1ef 50%, #f8f8f5 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
    font-family: 'Fraunces', 'Georgia', serif;
    letter-spacing: 0.2px;
}

a {
    color: var(--accent);
}

a:hover {
    color: var(--accent-dark);
}

/* Brand Utilities */
.text-brand {
    color: var(--brand) !important;
}

.text-accent {
    color: var(--accent-gold) !important;
}

.hero-surface {
    background: linear-gradient(135deg, var(--hero-grad-start) 0%, var(--hero-grad-end) 100%);
    border-radius: 16px;
}

.homepage-hero {
    margin-top: 12px;
}

.hero-card {
    background: linear-gradient(135deg, var(--hero-grad-start) 0%, #f8fbfa 100%);
    border-radius: 24px;
    padding: 36px;
    border: 1px solid rgba(227, 231, 232, 0.7);
    box-shadow: var(--shadow-md);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

.trust-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.trust-item {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--border);
    padding: 10px 14px;
    border-radius: 999px;
    font-size: 0.9rem;
    color: var(--ink);
    box-shadow: 0 6px 12px rgba(17, 29, 35, 0.06);
}

.search-card {
    margin-bottom: 0;
    border-radius: 20px;
    box-shadow: 0 12px 24px rgba(17, 29, 35, 0.12);
}

.stats-strip {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.cta-surface {
    background: linear-gradient(120deg, var(--cta-grad-start) 0%, var(--cta-grad-end) 100%);
}

.highlight-surface {
    background: linear-gradient(135deg, var(--hero-grad-start) 0%, var(--hero-grad-end) 100%);
}

.promo-surface {
    background: linear-gradient(135deg, var(--promo-grad-start) 0%, var(--promo-grad-end) 100%);
    border-radius: 12px;
}

.footer-surface {
    background: linear-gradient(135deg, var(--footer-grad-start) 0%, var(--footer-grad-end) 100%) !important;
    box-shadow: 0 -12px 24px rgba(17, 29, 35, 0.08);
}

.gradient-brand {
    background: linear-gradient(135deg, var(--dash-1-start) 0%, var(--dash-1-end) 100%);
}

.gradient-sage {
    background: linear-gradient(135deg, var(--dash-2-start) 0%, var(--dash-2-end) 100%);
}

.gradient-sand {
    background: linear-gradient(135deg, var(--dash-3-start) 0%, var(--dash-3-end) 100%);
}

.gradient-slate {
    background: linear-gradient(135deg, var(--dash-4-start) 0%, var(--dash-4-end) 100%);
}

/* Navbar */
.custom-navbar {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 6px 18px rgba(17, 29, 35, 0.06);
    position: sticky;
    top: 0;
    z-index: 1050;
}

.custom-navbar .navbar-brand {
    color: var(--ink);
    font-weight: 600;
    font-size: 1.35rem;
    text-decoration: none;
}

.custom-navbar .navbar-brand img {
    height: 40px;
    width: auto;
    transition: transform 0.2s ease;
}

.custom-navbar .navbar-brand:hover img {
    transform: scale(1.05);
}

.custom-navbar .logo-text {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--ink);
}

.custom-navbar .nav-link {
    color: var(--muted);
    font-weight: 500;
}

.custom-navbar .nav-link:hover,
.custom-navbar .nav-link:focus {
    color: var(--ink);
}

.custom-navbar .dropdown-menu {
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    z-index: 1060;
}

.navbar-light .navbar-toggler {
    border-color: var(--border);
}

.navbar-light .navbar-toggler-icon {
    filter: grayscale(1);
    opacity: 0.8;
}

/* Cards */
.card,
.doctor-card {
    border: 1px solid rgba(227, 231, 232, 0.8);
    border-radius: 16px;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover,
.doctor-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.doctor-card.featured {
    border-left: 4px solid var(--accent-gold);
    position: relative;
}

.doctor-card.featured::before {
    content: "FEATURED";
    position: absolute;
    top: -10px;
    right: 12px;
    background: var(--accent-gold-soft);
    color: #6c5a1f;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    box-shadow: 0 2px 4px rgba(108, 90, 31, 0.15);
    z-index: 10;
}

/* Verified doctors - subtle green border */
.doctor-card.verified {
    border-left: 2px solid rgba(60, 122, 98, 0.3);
}

.doctor-card.verified:hover {
    border-left-color: rgba(60, 122, 98, 0.5);
}

/* Make doctor cards equal height in their row */
.doctor-card {
    display: flex;
    flex-direction: column;
}

.doctor-card .card-body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.doctor-card .doctor-details {
    flex-grow: 1;
}

/* Limit description text to 3 lines to keep cards uniform */
.doctor-card .doctor-details > p.text-muted:last-of-type {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    max-height: 4.5em;
    line-height: 1.5em;
}

.doctor-avatar {
    width: 80px;
    height: 80px;
    flex: 0 0 80px;
}

.doctor-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Rating Stars */
.rating {
    color: var(--accent-gold);
}

.rating .star {
    cursor: pointer;
    transition: transform 0.2s ease, color 0.2s ease;
    font-size: 1.15rem;
}

.rating .star:hover {
    color: var(--accent-gold-dark);
    transform: scale(1.08);
}

.star-rating {
    display: flex;
    gap: 5px;
    font-size: 1.4rem;
}

.star-rating .star {
    cursor: pointer;
    transition: transform 0.2s ease;
}

.star-rating .star:hover {
    transform: scale(1.15);
}

/* Advertisement Styling */
.ad-container {
    background: var(--surface);
    padding: 18px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 20px rgba(17, 29, 35, 0.05);
}

.ad-container.sticky-top {
    position: sticky;
    top: 20px;
    z-index: 100;
}

.ad-container img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.ad-link {
    display: block;
    text-decoration: none;
}

.ad-link:hover {
    opacity: 0.92;
}

/* Native In-Feed Ads */
.ad-card {
    background: linear-gradient(135deg, #f6f7f4 0%, #e9efec 100%);
    border: 1px dashed #d7dbdd !important;
}

.ad-card .card-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

/* Mobile Bottom Anchor Ad */
.mobile-ad-anchor {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--surface);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.08);
    text-align: center;
    padding: 6px;
}

/* Text Ads */
.text-ad {
    padding: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.text-ad h4 {
    color: var(--ink);
    margin-bottom: 10px;
    font-size: 1.05rem;
}

.text-ad a {
    color: var(--accent);
    text-decoration: none;
}

.text-ad a:hover {
    text-decoration: underline;
}

/* AdSense Container */
.adsense-ad {
    text-align: center;
    padding: 10px;
}

/* Responsive Ad Sizes */
@media (max-width: 768px) {
    .ad-container {
        padding: 12px;
    }

    .ad-container img {
        max-width: 100%;
        height: auto;
    }

    .ad-container[data-format="728x90"],
    .ad-container[data-format="970x250"] {
        display: none;
    }

    body {
        padding-bottom: 60px;
    }
}

@media (min-width: 769px) {
    .mobile-ad-anchor {
        display: none !important;
    }
}

/* Ad Loading State */
.ad-container.loading {
    background: #f1f2f3;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* User Profile Enhancements */
.profile-header {
    background: linear-gradient(135deg, #dae6e1 0%, #f2f4f2 100%);
    color: var(--ink);
    border-radius: 16px 16px 0 0;
    padding: 32px;
    border: 1px solid var(--border);
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 4px solid var(--surface);
    box-shadow: 0 6px 14px rgba(17, 29, 35, 0.15);
}

/* Status Badges */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.4px;
}

.badge.bg-warning {
    background: #f0e2b8 !important;
    color: #6b5618 !important;
}

.badge.bg-success {
    background: #d7ece0 !important;
    color: #235d44 !important;
}

.badge.bg-danger {
    background: #f3d4d2 !important;
    color: #7a2b27 !important;
}

/* Button Enhancements */
.btn {
    border-radius: 10px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    padding: 10px 22px;
}

.btn-primary {
    background: var(--brand);
    border: none;
    box-shadow: 0 8px 18px rgba(47, 111, 109, 0.2);
}

.btn-primary:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(36, 87, 86, 0.25);
}

.btn-success {
    background: #3c7a62;
    border: none;
}

.btn-success:hover {
    background: #2f5f4c;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(47, 95, 76, 0.25);
}

.btn-outline-primary {
    color: var(--brand);
    border-color: var(--brand);
}

.btn-outline-primary:hover {
    background: var(--brand);
    border-color: var(--brand);
}

/* Search Form */
.search-container {
    background: var(--surface);
    padding: 32px;
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
    border: 1px solid var(--border);
}

.search-container h3 {
    color: var(--ink);
    margin-bottom: 18px;
    font-weight: 600;
}

.form-select, .form-control {
    border-radius: 10px;
    border: 1px solid var(--border);
    padding: 12px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-select:focus, .form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.2rem rgba(47, 111, 109, 0.15);
}

/* Doctor List Container */
#doctor-list .row {
    margin: 0 -10px;
}

#doctor-list .col-md-6 {
    padding: 10px;
}

/* Review Cards */
.review {
    background: var(--surface-alt);
    padding: 16px;
    border-radius: 10px;
    margin-bottom: 15px;
    border-left: 4px solid var(--accent);
}

/* Table Enhancements */
.table {
    background: var(--surface);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.table thead {
    background: #f1f3f3;
}

.table th {
    font-weight: 600;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
    padding: 12px;
}

.table td {
    padding: 12px;
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background-color: #f7f8f6;
    cursor: pointer;
}

/* Alerts */
.alert {
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 8px 18px rgba(17, 29, 35, 0.06);
}

.alert-info {
    background: #e6f0ef;
    color: #244948;
}

.alert-success {
    background: #e6f3ec;
    color: #24583c;
}

.alert-warning {
    background: #f7f0dc;
    color: #67531c;
}

.alert-danger {
    background: #f4dfdd;
    color: #6e2c28;
}

/* Modal Enhancements */
.modal-content {
    border: none;
    border-radius: 16px;
    box-shadow: 0 16px 36px rgba(17, 29, 35, 0.2);
}

.modal-header {
    background: #f3f4f3;
    border-bottom: 1px solid var(--border);
    border-radius: 16px 16px 0 0;
}

.modal-title {
    font-weight: 600;
    color: var(--ink);
}

/* Doctor Profile Sidebar */
.doctor-profile-sidebar {
    position: sticky;
    top: 20px;
}

.doctor-profile-sidebar img {
    border: 4px solid var(--surface);
    box-shadow: 0 6px 14px rgba(17, 29, 35, 0.12);
}

/* Footer */
footer {
    margin-top: 60px;
    background: #202a30 !important;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.12);
}

/* Loading States */
.loading-spinner {
    text-align: center;
    padding: 40px;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Subtle Page Reveal */
.card,
.doctor-card,
.search-container,
.profile-header,
.table,
.alert {
    animation: fadeUp 0.6s ease both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* Responsive Improvements */
@media (max-width: 768px) {
    .search-container {
        padding: 22px;
    }

    .hero-card {
        padding: 24px;
        border-radius: 18px;
    }

    .trust-strip {
        justify-content: center;
    }

    .trust-item {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .doctor-card {
        margin-bottom: 15px;
    }

    .profile-header {
        padding: 22px;
        text-align: center;
    }

    .profile-avatar {
        width: 100px;
        height: 100px;
    }

    .btn {
        width: 100%;
        margin-bottom: 10px;
    }

    .table {
        font-size: 0.9rem;
    }

    .hero-surface,
    .cta-surface,
    .highlight-surface,
    .promo-surface {
        border-radius: 12px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid rgba(47, 111, 109, 0.6);
    outline-offset: 2px;
}