/* 
===================================================================
  Doctor Portfolio & Personal Website - Main Stylesheet
===================================================================
*/

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* Color & Variable System */
:root {
    --primary-color: #0aa2b0;       /* Professional Teal Clinical Blue */
    --hover-primary-color: #07808c;
    --secondary-color: #10b981;     /* Vibrant Trust Green Accents */
    --accent-blue-light: #e0f6f8;   /* Soft Aqua Ice Primary Accent */
    --font-heading: 'Outfit', sans-serif;
    --font-base: 'Inter', sans-serif;
    
    /* Default Light Mode Colors */
    --bg-primary: #fcfdfe;          /* Clean Clinical Snow White */
    --bg-secondary: #f4f8f9;        /* Soft Cool Gray Teal */
    --bg-tertiary: #e9eff1;
    --text-primary: #1e293b;        /* Dark Charcoal Slate */
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;        /* Sleek borders */
    --card-shadow: 0 10px 40px rgba(10, 162, 176, 0.04);
    --card-shadow-hover: 0 15px 45px rgba(10, 162, 176, 0.09);
    --glass-bg: rgba(252, 253, 254, 0.85);
    --glass-border: rgba(10, 162, 176, 0.08);
    
    --transition-speed: 0.3s;
}

/* Dark Mode Overrides */
[data-theme="dark"] {
    --bg-primary: #0b1115;          /* Sophisticated Dark Matte */
    --bg-secondary: #111a20;        /* Navy Slate Accent */
    --bg-tertiary: #19252c;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #1e293b;
    --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
    --card-shadow-hover: 0 15px 45px rgba(10, 162, 176, 0.15);
    --glass-bg: rgba(17, 26, 32, 0.85);
    --glass-border: rgba(255, 255, 255, 0.05);
}

/* Dark mode global overrides for Bootstrap elements and layout containers */
[data-theme="dark"] body {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .bg-white,
[data-theme="dark"] .bg-light,
[data-theme="dark"] .bg-body {
    background-color: var(--bg-primary) !important;
}

[data-theme="dark"] .bg-secondary {
    background-color: var(--bg-tertiary) !important;
}

[data-theme="dark"] .text-dark,
[data-theme="dark"] .text-black,
[data-theme="dark"] .link-dark,
[data-theme="dark"] .dropdown-menu-item,
[data-theme="dark"] .navbar-brand,
[data-theme="dark"] .nav-link,
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6,
[data-theme="dark"] p,
[data-theme="dark"] li,
[data-theme="dark"] td,
[data-theme="dark"] th,
[data-theme="dark"] label {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-secondary,
[data-theme="dark"] .text-muted,
[data-theme="dark"] .card-body p,
[data-theme="dark"] .timeline-item p,
[data-theme="dark"] small,
[data-theme="dark"] .breadcrumb-item a {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .card,
[data-theme="dark"] .accordion-item,
[data-theme="dark"] .timeline-content,
[data-theme="dark"] .form-card,
[data-theme="dark"] .testimonial-card,
[data-theme="dark"] .blog-card,
[data-theme="dark"] .stat-card {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .dropdown-menu {
    background-color: var(--bg-tertiary) !important;
    border-color: var(--border-color) !important;
}

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

[data-theme="dark"] .dropdown-item:hover {
    background-color: var(--bg-secondary) !important;
    color: var(--primary-color) !important;
}

[data-theme="dark"] .table {
    --bs-table-bg: var(--bg-primary) !important;
    --bs-table-striped-bg: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .table-light {
    --bs-table-bg: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea,
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

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

[data-theme="dark"] select option {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .input-group-text {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .border,
[data-theme="dark"] .border-bottom,
[data-theme="dark"] .border-top,
[data-theme="dark"] .border-start,
[data-theme="dark"] .border-end {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .accordion-button {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .accordion-button:not(.collapsed) {
    background-color: var(--bg-tertiary) !important;
    color: var(--primary-color) !important;
}

[data-theme="dark"] .inner-header {
    background: linear-gradient(135deg, rgba(10, 162, 176, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%), var(--bg-secondary) !important;
}

[data-theme="dark"] .footer {
    background-color: var(--bg-secondary) !important;
}

/* Global Styles */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-base);
    font-size: 1rem;
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}
a:hover {
    color: var(--hover-primary-color);
}

/* Preloader styles */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-primary);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid var(--accent-blue-light);
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Header & Navigation */
.navbar {
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    transition: padding var(--transition-speed), background-color var(--transition-speed);
    z-index: 1000;
}
.navbar.scrolled {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.05);
}
.nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 10px;
    background-color: var(--primary-color);
    transition: width var(--transition-speed);
}
.nav-link:hover::after,
.nav-link.active::after {
    width: calc(100% - 20px);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    transition: all var(--transition-speed);
}
.btn-primary:hover {
    background-color: var(--hover-primary-color);
    border-color: var(--hover-primary-color);
    transform: translateY(-2px);
}
.btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    transition: all var(--transition-speed);
}
.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
}

/* Page Hero */
.hero-section {
    position: relative;
    padding: 120px 0 100px 0;
    background-color: var(--bg-secondary);
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 150%;
    background: radial-gradient(circle, rgba(10, 162, 176, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: 1;
    pointer-events: none;
}
.hero-image-wrapper {
    position: relative;
    z-index: 2;
}
.hero-image-wrapper img {
    border-radius: 20px;
    box-shadow: var(--card-shadow);
}
.hero-experience-badge {
    position: absolute;
    bottom: 20px;
    left: -20px;
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    padding: 15px 25px;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    gap: 15px;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Section Common Styling */
.section-title {
    margin-bottom: 50px;
    position: relative;
}
.section-title h2 {
    font-size: 2.25rem;
    position: relative;
    padding-bottom: 15px;
    display: inline-block;
}
.section-title h2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}
.section-title.text-start h2::after {
    left: 0;
    transform: none;
}

/* Stats Cards */
.stat-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    text-align: center;
    transition: all var(--transition-speed);
}
.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--primary-color);
}
.stat-card .icon-placeholder {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}
.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
}

/* Service Card */
.service-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 35px 25px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-speed);
    height: 100%;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--primary-color);
}
.service-icon {
    font-size: 2.25rem;
    color: var(--primary-color);
    background-color: var(--accent-blue-light);
    width: 70px;
    height: 70px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    transition: transform var(--transition-speed);
}
[data-theme="dark"] .service-icon {
    background-color: var(--bg-tertiary);
}
.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

/* Timeline Components */
.timeline {
    position: relative;
    padding-left: 30px;
    border-left: 2px solid var(--border-color);
}
.timeline-item {
    position: relative;
    padding-bottom: 40px;
}
.timeline-item:last-child {
    padding-bottom: 0;
}
.timeline-marker {
    position: absolute;
    left: -41px;
    top: 5px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--primary-color);
    border: 4px solid var(--bg-primary);
    box-shadow: 0 0 0 4px rgba(10, 162, 176, 0.15);
}
.timeline-content {
    background-color: var(--bg-secondary);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}
.timeline-date {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
    display: inline-block;
}

/* Testimonial slider / card */
.testimonial-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 35px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    margin: 15px;
}
.patient-rating {
    color: #ffc107;
    font-size: 1.1rem;
    margin-bottom: 15px;
}
.patient-profile {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
}
.patient-profile img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

/* Gallery Photo Cards */
.gallery-category-btn.active {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: #fff !important;
}
.gallery-item-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}
.gallery-item-wrapper img {
    transition: transform 0.5s ease;
    width: 100%;
    height: 250px;
    object-fit: cover;
}
.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 162, 176, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
    padding: 20px;
    text-align: center;
    color: #fff;
}
.gallery-item-wrapper:hover img {
    transform: scale(1.1);
}
.gallery-item-wrapper:hover .gallery-overlay {
    opacity: 1;
}

/* Accordion FAQ */
.accordion-item {
    background-color: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    margin-bottom: 15px;
    overflow: hidden;
}
.accordion-button {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    font-weight: 600;
    box-shadow: none !important;
    padding: 20px !important;
}
.accordion-button:not(.collapsed) {
    background-color: var(--accent-blue-light) !important;
    color: var(--primary-color) !important;
}
[data-theme="dark"] .accordion-button:not(.collapsed) {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}
.accordion-body {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

/* Floating Actions */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--primary-color);
    color: #fff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 15px rgba(10, 162, 176, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
    z-index: 999;
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background-color: var(--hover-primary-color);
    color: #fff;
    transform: translateY(-5px);
}

.whatsapp-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background-color: #25d366;
    color: #fff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: all var(--transition-speed);
    z-index: 999;
}
.whatsapp-float:hover {
    background-color: #128c7e;
    color: #fff;
    transform: translateY(-5px);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
    background: #adb5bd;
}

/* Banner, Breadcrumbs & Inner Headers */
.inner-header {
    background: linear-gradient(135deg, rgba(10, 162, 176, 0.1) 0%, rgba(25, 135, 84, 0.05) 100%), var(--bg-secondary);
    padding: 80px 0 60px;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}
.breadcrumb {
    justify-content: center;
    background: none;
    margin-bottom: 0;
}
.breadcrumb-item a {
    color: var(--text-muted);
}
.breadcrumb-item.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* Patient Form Card */
.form-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
}
.form-control, .form-select {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 0.95rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all var(--transition-speed);
}
.form-control:focus, .form-select:focus {
    background-color: var(--bg-primary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(10, 162, 176, 0.15);
    color: var(--text-primary);
}
[data-theme="dark"] .form-control, [data-theme="dark"] .form-select {
    color: #fff;
}
[data-theme="dark"] .form-control::placeholder {
    color: #6c757d;
}

/* Footer Section */
.footer {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding: 85px 0 30px;
}
.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}
.footer-links-list {
    list-style: none;
    padding: 0;
}
.footer-links-list li {
    margin-bottom: 12px;
}
.footer-links-list a {
    color: var(--text-muted);
    transition: all var(--transition-speed);
}
.footer-links-list a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}
.footer-social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    color: var(--text-primary);
    margin-right: 10px;
    transition: all var(--transition-speed);
}
.footer-social-icon:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px);
}

/* Light/Dark Toggle Switch CSS */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
}
.theme-switch-label {
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-primary);
    transition: transform var(--transition-speed);
}
.theme-switch-label:hover {
    transform: scale(1.15);
}

/* Blog Cards */
.blog-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-speed);
}
.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--primary-color);
}
.blog-card-img {
    height: 220px;
    object-fit: cover;
    width: 100%;
}
.blog-card-body {
    padding: 25px;
}
.blog-card-category {
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--primary-color);
    background-color: var(--accent-blue-light);
    padding: 4px 10px;
    border-radius: 5px;
    display: inline-block;
    margin-bottom: 12px;
}
[data-theme="dark"] .blog-card-category {
    background-color: var(--bg-tertiary);
}

/* Admin Dashboard layout styling */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}
.admin-sidebar {
    width: 260px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: sticky;
    top: 0;
}
.admin-sidebar-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.35rem;
    margin-bottom: 35px;
    color: var(--text-primary);
}
.admin-sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
    overflow-y: auto;
}
.admin-sidebar-nav li {
    margin-bottom: 8px;
}
.admin-sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 18px;
    color: var(--text-muted);
    border-radius: 8px;
    font-weight: 500;
    transition: all var(--transition-speed);
}
.admin-sidebar-nav a:hover,
.admin-sidebar-nav a.active {
    background-color: var(--primary-color);
    color: #fff !important;
}
.admin-main {
    flex-grow: 1;
    background-color: var(--bg-primary);
    padding: 40px;
    overflow-y: auto;
}
.admin-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}
.admin-summary-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 25px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--card-shadow);
}
.admin-summary-icon {
    font-size: 2.25rem;
    color: var(--primary-color);
}

/* Bootstrap Utility Color Overrides for Clinical Theme Consistency */
.text-primary {
    color: var(--primary-color) !important;
}
.bg-primary {
    background-color: var(--primary-color) !important;
}
.btn-primary {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}
.btn-outline-primary {
    color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}
.btn-outline-primary:hover {
    background-color: var(--primary-color) !important;
    color: #fff !important;
}
.text-success {
    color: var(--secondary-color) !important;
}
.bg-success {
    background-color: var(--secondary-color) !important;
}
.btn-success {
    background-color: var(--secondary-color) !important;
    border-color: var(--secondary-color) !important;
}
.text-primary-dim {
    color: var(--primary-color) !important;
    opacity: 0.15;
}
.text-success-dim {
    color: var(--secondary-color) !important;
    opacity: 0.15;
}
.text-warning-dim {
    color: #ffc107 !important;
    opacity: 0.15;
}
.text-danger-dim {
    color: #dc3545 !important;
    opacity: 0.15;
}
.btn-link.link-dark {
    color: var(--text-primary) !important;
}