:root {
    /* Light Theme Palette */
    --clr-bg: #f9fbfd;
    --clr-surface: #ffffff;
    --clr-text-main: #1e293b;
    --clr-text-muted: #64748b;
    --clr-primary: #0ea5e9;
    --clr-primary-hover: #0284c7;
    --clr-border: #e2e8f0;
    --clr-accent: #0f172a;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

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

[data-theme="dark"] {
    --clr-bg: #0f172a;
    --clr-surface: #1e293b;
    --clr-text-main: #f8fafc;
    --clr-text-muted: #94a3b8;
    --clr-border: #334155;
    --clr-accent: #f8fafc;
    /* keep primary same or slightly lighter */
    --clr-primary: #38bdf8;
    --clr-primary-hover: #7dd3fc;
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--clr-bg);
    color: var(--clr-text-main);
    line-height: 1.6;
    transition: background-color var(--transition), color var(--transition);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

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

a:hover {
    color: var(--clr-primary-hover);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1,
h2,
h3,
h4 {
    color: var(--clr-accent);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--clr-primary);
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(14, 165, 233, 0.39);
}

.btn-primary:hover {
    background-color: var(--clr-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    color: var(--clr-primary);
    border: 2px solid var(--clr-primary);
}

.btn-outline:hover {
    background-color: var(--clr-primary);
    color: #fff;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header */
.site-header {
    background-color: var(--clr-surface);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--clr-accent);
}

.logo-text strong {
    display: block;
    font-size: 1.1rem;
    line-height: 1.2;
}

.logo-text span {
    font-size: 0.8rem;
    color: var(--clr-text-muted);
}

.main-nav ul {
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: var(--clr-text-main);
    font-weight: 500;
    white-space: nowrap;
}

.main-nav a:hover {
    color: var(--clr-primary);
}

.main-nav ul li {
    position: relative;
    padding: 1rem 0; /* Add some padding so hover target is larger */
}

/* Dropdown Menu */
.has-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--clr-surface);
    min-width: 250px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--clr-border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 200;
    display: flex;
    flex-direction: column;
    padding: 0;
    gap: 0;
}

.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
    padding: 0;
    border-bottom: 1px solid var(--clr-border);
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

.dropdown-menu a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--clr-text-main);
    font-weight: 400;
    transition: background-color 0.2s, color 0.2s;
    white-space: normal; /* allow text wrapping if needed */
}

.dropdown-menu a:hover {
    background-color: var(--clr-bg);
    color: var(--clr-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.theme-switch {
    font-size: 1.25rem;
    cursor: pointer;
    user-select: none;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--clr-text-main);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

/* Main Content Padding */
.main-content {
    min-height: calc(100vh - 80px - 300px);
    /* header and footer approx */
    padding-bottom: 4rem;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--clr-bg) 0%, var(--clr-surface) 100%);
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--clr-primary) 0%, transparent 70%);
    opacity: 0.05;
    border-radius: 50%;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 4rem;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--clr-accent), var(--clr-primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--clr-text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-image {
    flex: 1;
    display: none;
}

@media (min-width: 992px) {
    .hero-image {
        display: block;
    }
}

/* Section Common */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3.5rem;
}

.section-header p {
    color: var(--clr-text-muted);
    font-size: 1.125rem;
}

/* Cards Grid */
.grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.card {
    background: var(--clr-surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--clr-border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--clr-primary);
}

.card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.card p {
    color: var(--clr-text-muted);
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    background-color: var(--clr-border);
}

.price-tag {
    font-weight: 700;
    color: var(--clr-primary);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* Staff Card Specific */
.staff-card {
    text-align: center;
}

.staff-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 4px solid var(--clr-surface);
    box-shadow: var(--shadow-md);
    background-color: var(--clr-border);
}

.staff-department {
    color: var(--clr-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

/* Page Header (Inner pages) */
.page-header {
    background: var(--clr-surface);
    padding: 4rem 0 2rem;
    border-bottom: 1px solid var(--clr-border);
    margin-bottom: 3rem;
    text-align: center;
}

/* Price Table */
.price-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 3rem;
    background: var(--clr-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.price-table th,
.price-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--clr-border);
}

.price-table th {
    background-color: var(--clr-bg);
    color: var(--clr-text-muted);
    font-weight: 600;
}

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

.price-table tr:hover td {
    background-color: var(--clr-bg);
}

.price-table .cost {
    font-weight: 700;
    color: var(--clr-primary);
    white-space: nowrap;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--clr-accent);
}

.form-control,
input,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    background-color: var(--clr-bg);
    color: var(--clr-text-main);
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus,
input:focus,
textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--clr-surface);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    position: relative;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform 0.3s;
}

.modal.active .modal-content {
    transform: scale(1);
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--clr-text-muted);
    line-height: 1;
}

.close-modal:hover {
    color: var(--clr-accent);
}

/* Footer */
.site-footer {
    background-color: var(--clr-surface);
    border-top: 1px solid var(--clr-border);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--clr-accent);
    margin-bottom: 1rem;
}

.footer-col h3 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul a,
.footer-col p {
    color: var(--clr-text-muted);
}

.footer-col ul a:hover {
    color: var(--clr-primary);
}

.social-links {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--clr-bg);
    color: var(--clr-primary);
    font-weight: 600;
}

.social-links a:hover {
    background-color: var(--clr-primary);
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--clr-border);
    color: var(--clr-text-muted);
    font-size: 0.875rem;
}

.admin-link {
    margin-left: 1rem;
    opacity: 0.5;
}

/* Scroll to top */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--clr-primary);
    color: #fff;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
}

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

.scroll-to-top:hover {
    background: var(--clr-primary-hover);
    transform: translateY(-3px);
}

/* Animations (Intersection Observer) */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* Form message */
.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius-sm);
    display: none;
}

.form-message.success {
    display: block;
    background-color: #dcfce7;
    color: #166534;
}

.form-message.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
}

/* Responsive */
@media (max-width: 768px) {
    .header-actions {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .main-nav {
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--clr-surface);
        padding: 2rem;
        box-shadow: var(--shadow-md);
        display: none;
        border-top: 1px solid var(--clr-border);
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 1.5rem;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero {
        padding: 4rem 0;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
        flex-direction: column;
    }
}