/* ==========================================================================
   Dr. Siddhant Portfolio Website - Premium Custom Stylesheet
   ========================================================================== */

/* Typography & Variables Setup */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    /* Color Palette - Light Mode */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent-primary: #0284c7;
    --accent-secondary: #0ea5e9;
    --accent-rgb: 2, 132, 199;
    --accent-hover: #0369a1;
    --border-color: #e2e8f0;
    --card-bg: rgba(255, 255, 255, 0.85);
    --shadow-color: rgba(15, 23, 42, 0.06);
    --shadow-hover: rgba(15, 23, 42, 0.12);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    --accent-gradient: linear-gradient(135deg, #0284c7 0%, #0ea5e9 100%);
    
    /* Layout Constants */
    --transition-speed: 0.3s;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
}

[data-theme="dark"] {
    /* Color Palette - Dark Mode */
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --accent-primary: #38bdf8;
    --accent-secondary: #0ea5e9;
    --accent-rgb: 56, 189, 248;
    --accent-hover: #7dd3fc;
    --border-color: #1e293b;
    --card-bg: rgba(17, 24, 39, 0.85);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.5);
    --glass-bg: rgba(11, 15, 25, 0.75);
    --glass-border: rgba(255, 255, 255, 0.05);
    --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 100%);
}

/* Dark Mode Bootstrap Text Overrides for High Visibility */
[data-theme="dark"] .text-secondary {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .text-muted {
    color: var(--text-muted) !important;
}

[data-theme="dark"] .text-primary-emphasis {
    color: var(--accent-primary) !important;
}

[data-theme="dark"] small, [data-theme="dark"] .small {
    color: var(--text-secondary) !important;
}

.bio-subcard {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color) !important;
}

.bio-highlight-box {
    background-color: rgba(var(--accent-rgb), 0.05);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-primary) !important;
    box-shadow: 0 4px 12px var(--shadow-color);
    transition: all 0.3s ease;
}

.bio-fellowship-text {
    color: var(--text-secondary);
}

[data-theme="dark"] .bio-subcard {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1) !important;
}

[data-theme="dark"] .bio-highlight-box {
    background-color: rgba(var(--accent-rgb), 0.12);
    border-color: rgba(255, 255, 255, 0.1);
    border-left: 4px solid var(--accent-primary) !important;
}

[data-theme="dark"] .bio-fellowship-text {
    color: #e2e8f0 !important;
}


/* Base reset & typography rules */
html, body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

h1, h2, h3, h4, h5, h6, .display-font {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* Theme Switcher Toggle styling */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
}

.theme-switch {
    display: inline-block;
    height: 34px;
    position: relative;
    width: 60px;
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: var(--border-color);
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
    border-radius: 34px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
    box-shadow: inset 0 2px 4px var(--shadow-color);
}

.slider:before {
    background-color: var(--bg-secondary);
    bottom: 3px;
    content: "";
    height: 28px;
    left: 3px;
    position: absolute;
    transition: .4s;
    width: 28px;
    border-radius: 50%;
    z-index: 2;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.slider-icons {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 14px;
    z-index: 1;
    padding: 0 2px;
}

.slider-icons i {
    transition: color 0.3s;
}

input:checked + .slider {
    background-color: var(--accent-primary);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Glassmorphism Classes */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px 0 var(--shadow-color);
}

/* Header & Navbar */
.navbar-custom {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 20px 0;
}

.navbar-custom.scrolled {
    padding: 12px 0;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 20px var(--shadow-color);
}

.navbar-brand-custom {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-primary);
    border-radius: 50%;
    display: inline-block;
}

.nav-link-custom {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
}

.nav-link-custom:hover, .nav-link-custom.active {
    color: var(--accent-primary);
    background: rgba(var(--accent-rgb), 0.08);
}

/* Hero Section */
.hero-section {
    padding: 160px 0 100px 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    background: radial-gradient(circle at 80% 20%, rgba(var(--accent-rgb), 0.08) 0%, transparent 40%);
}

.hero-sub {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    color: var(--accent-primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-size: 0.9rem;
    display: inline-block;
    margin-bottom: 12px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-title span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-lead {
    font-size: 1.15rem;
    margin-bottom: 35px;
}

.hero-stats-card {
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    box-shadow: 0 4px 12px var(--shadow-color);
    padding: 15px 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: transform 0.3s ease;
}

.hero-stats-card:hover {
    transform: translateY(-5px);
}

.hero-stats-icon {
    font-size: 2rem;
    color: var(--accent-primary);
    background: rgba(var(--accent-rgb), 0.1);
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-stats-num {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 4px;
}

.hero-stats-text {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Image Premium Frames */
.img-premium-wrapper {
    position: relative;
    z-index: 1;
}

.img-premium-wrapper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-primary);
    border-radius: var(--border-radius-lg);
    z-index: -1;
    opacity: 0.3;
}

.img-premium-wrapper::after {
    content: '';
    position: absolute;
    bottom: -15px;
    right: -15px;
    width: 80px;
    height: 80px;
    background: radial-gradient(var(--accent-primary) 20%, transparent 20%);
    background-size: 10px 10px;
    z-index: -1;
    opacity: 0.4;
}

.img-premium {
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 40px var(--shadow-color);
    border: 4px solid var(--bg-secondary);
}

/* General Buttons */
.btn-premium {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    padding: 12px 30px;
    border-radius: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(var(--accent-rgb), 0.2);
}

.btn-premium-primary {
    background: var(--accent-gradient);
    border: none;
    color: #ffffff !important;
}

.btn-premium-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.35);
}

.btn-premium-secondary {
    background: transparent;
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary) !important;
}

.btn-premium-secondary:hover {
    background: rgba(var(--accent-rgb), 0.05);
    transform: translateY(-2px);
}

/* Sections Global Styling */
.section-padding {
    padding: 100px 0;
}

.section-tag {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    color: var(--accent-primary);
    background: rgba(var(--accent-rgb), 0.08);
    padding: 6px 16px;
    border-radius: 20px;
    display: inline-block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.section-desc {
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto 50px auto;
}

/* About / Timeline */
.bio-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 40px;
    box-shadow: 0 8px 30px var(--shadow-color);
}

.timeline-container {
    position: relative;
    padding-left: 30px;
    border-left: 2px dashed var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -41px;
    top: 5px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 4px solid var(--accent-primary);
    box-shadow: 0 0 0 6px rgba(var(--accent-rgb), 0.1);
}

.timeline-date {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    color: var(--accent-primary);
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.timeline-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.timeline-tabs-nav {
    display: flex;
    gap: 10px;
    background: var(--bg-tertiary);
    padding: 6px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
}

.timeline-tab-btn {
    flex: 1;
    border: none;
    background: transparent;
    padding: 10px 16px;
    border-radius: calc(var(--border-radius-sm) - 2px);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.timeline-tab-btn:hover {
    color: var(--accent-primary);
}

.timeline-tab-btn.active {
    background: var(--accent-gradient);
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.25);
}

.timeline-panel {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.timeline-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.badge-current-role {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.timeline-location {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 10px;
}

/* Spinal Cord Watermark Overlays - Removed */
#about, #specializations {
    position: relative;
    overflow: hidden;
}

/* Specializations & Services */
.service-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 0 0 30px 0;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 4px 20px var(--shadow-color);
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow-hover);
    border-color: var(--accent-primary);
}

.service-img-wrapper {
    position: relative;
    height: 185px;
    overflow: hidden;
    width: 100%;
}

.service-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.service-card:hover .service-img {
    transform: scale(1.08);
}

.service-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(15, 23, 42, 0.78);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    z-index: 2;
}

.service-body {
    padding: 20px 20px 0 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.service-icon {
    font-size: 1.8rem;
    color: var(--accent-primary);
    margin-bottom: 18px;
    display: inline-block;
    background: rgba(var(--accent-rgb), 0.08);
    width: 50px;
    height: 50px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: var(--accent-gradient);
    color: #ffffff;
    transform: rotateY(360deg);
}

.service-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.35;
}

.service-list {
    margin-top: auto;
    padding-left: 0;
    list-style: none;
}

.service-list li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-list li i {
    color: var(--accent-primary);
    font-size: 0.85rem;
}

/* Clinic / visiting hours card */
.clinic-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 8px 30px var(--shadow-color);
    height: 100%;
}

.clinic-map-placeholder {
    height: 220px;
    background-color: var(--bg-tertiary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.clinic-map-placeholder iframe {
    width: 100%;
    height: 100%;
    border: none;
    opacity: 0.85;
    transition: opacity 0.3s;
}

.clinic-map-placeholder iframe:hover {
    opacity: 1;
}

.clinic-body {
    padding: 30px;
}

.clinic-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.clinic-info-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 25px;
}

.clinic-info-list li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.clinic-info-list li i {
    color: var(--accent-primary);
    font-size: 1.1rem;
    margin-top: 3px;
}

.hours-table {
    width: 100%;
    margin-bottom: 0;
}

.hours-table td {
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.hours-table tr:last-child td {
    border-bottom: none;
}

.hours-table td.day {
    font-weight: 600;
    color: var(--text-primary);
}

.hours-table td.time {
    text-align: right;
}

/* Appointment Form & Booking */
.booking-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 45px;
    box-shadow: 0 10px 40px var(--shadow-color);
}

.form-floating > .form-control, .form-floating > .form-select {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--border-radius-sm);
}

.form-floating > .form-control:focus, .form-floating > .form-select:focus {
    background-color: var(--bg-secondary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.15);
}

.form-floating > label {
    color: var(--text-muted);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label,
.form-floating > .form-select ~ label {
    color: var(--accent-primary);
}

/* Testimonials section */
.testimonial-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 40px;
    box-shadow: 0 6px 24px var(--shadow-color);
    position: relative;
    height: 100%;
}

.testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: 10px;
    right: 25px;
    font-size: 6rem;
    color: var(--accent-primary);
    font-family: serif;
    line-height: 1;
    opacity: 0.1;
}

.quote-icon {
    font-size: 1.75rem;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.testimonial-text {
    font-size: 1.05rem;
    font-style: italic;
    margin-bottom: 25px;
}

.patient-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.patient-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-primary);
}

.patient-name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.patient-condition {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Footer Section */
.footer-section {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 30px 0;
}

.footer-logo {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    font-size: 1.6rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-desc {
    font-size: 0.95rem;
    margin-bottom: 25px;
}

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

.social-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-btn:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background-color: var(--accent-primary);
}

.footer-links {
    list-style: none;
    padding-left: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--accent-primary);
    transform: translateX(5px);
}

.footer-contact {
    list-style: none;
    padding-left: 0;
}

.footer-contact li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.footer-contact li i {
    color: var(--accent-primary);
    font-size: 1.1rem;
    margin-top: 3px;
}

.footer-emergency-box {
    background: rgba(239, 68, 68, 0.06);
    border: 1px solid rgba(239, 68, 68, 0.15);
    border-radius: var(--border-radius-sm);
    padding: 20px;
    margin-top: 20px;
}

[data-theme="dark"] .footer-emergency-box {
    background: rgba(239, 68, 68, 0.04);
}

.footer-emergency-title {
    color: #ef4444 !important;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-emergency-text {
    font-size: 0.85rem;
    margin-bottom: 0;
    color: var(--text-secondary);
}

.footer-bottom {
    margin-top: 50px;
    padding-top: 25px;
    border-top: 1px solid var(--border-color);
}

/* Back to Top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(var(--accent-rgb), 0.3);
    z-index: 99;
    border: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.5);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Carousel Adjustments */
.carousel-indicators [data-bs-target] {
    background-color: var(--accent-primary);
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.carousel-indicators {
    bottom: -50px;
}

/* Responsive adjustments */
@media (max-width: 991.98px) {
    .navbar-custom {
        background: var(--glass-bg);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--glass-border);
        padding: 12px 0;
    }
    .hero-title {
        font-size: 2.75rem;
    }
    .hero-section {
        padding: 130px 0 80px 0;
    }
    .img-premium-wrapper {
        margin-top: 50px;
        max-width: 450px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2.25rem;
    }
    .section-title {
        font-size: 2rem;
    }
    .booking-card {
        padding: 25px;
    }
    .bio-card {
        padding: 25px;
    }
    .testimonial-card {
        padding: 25px;
    }
}

@media (max-width: 575.98px) {
    .hero-stats-card {
        padding: 12px 16px;
        gap: 12px;
    }
    .hero-stats-num {
        font-size: 1.25rem;
    }
    .hero-stats-icon {
        width: 40px;
        height: 40px;
        font-size: 1.4rem;
        border-radius: 10px;
    }
    .hero-title {
        font-size: 1.85rem;
    }
    .hero-section {
        padding: 120px 0 60px 0;
    }
}

/* ==========================================================================
   Dedicated Cervical Spine & Specialized Spinal Treatments Showcase Styles
   ========================================================================== */
.cervical-showcase-box {
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.05) 0%, rgba(14, 165, 233, 0.12) 100%);
    border: 2px solid rgba(var(--accent-rgb), 0.25);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: all 0.3s ease;
}

[data-theme="dark"] .cervical-showcase-box {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(56, 189, 248, 0.05) 100%);
    border-color: rgba(56, 189, 248, 0.2);
}

.cervical-showcase-box:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 15px 35px var(--shadow-hover);
}

.cervical-badge-pill {
    background: var(--accent-gradient);
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.3);
}

.cervical-condition-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 24px;
    height: 100%;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.cervical-condition-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 12px 25px var(--shadow-hover);
}

.cervical-icon-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.cervical-condition-card:hover .cervical-icon-box {
    background: var(--accent-gradient);
    color: #ffffff;
}

.badge-tag-danger {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-tag-warning {
    background: rgba(245, 158, 11, 0.12);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-tag-info {
    background: rgba(14, 165, 233, 0.12);
    color: #0ea5e9;
    border: 1px solid rgba(14, 165, 233, 0.3);
}

.badge-tag-purple {
    background: rgba(168, 85, 247, 0.12);
    color: #a855f7;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

/* =============================================
   Patient Video Review Cards
   ============================================= */
.review-video-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 8px 30px var(--shadow-color);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.review-video-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 45px var(--shadow-hover);
    border-color: var(--accent-primary);
}

.review-video-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    overflow: hidden;
}

.review-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.review-video-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(2, 132, 199, 0.3) 0%, rgba(0,0,0,0.45) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.35s ease;
}

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

.review-play-btn {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.9rem;
    color: var(--accent-primary);
    cursor: pointer;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
    transition: all 0.3s ease;
}

.review-play-btn:hover {
    transform: scale(1.12);
    background: var(--accent-primary);
    color: #fff;
    box-shadow: 0 10px 32px rgba(var(--accent-rgb), 0.45);
}

.review-video-info {
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.review-video-avatar {
    font-size: 2rem;
    color: var(--accent-primary);
    line-height: 1;
}

.review-video-name {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.review-video-tag {
    font-size: 0.82rem;
    letter-spacing: 0.3px;
}

[data-theme="dark"] .review-video-card {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .review-play-btn {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

[data-theme="dark"] .review-play-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}