/* Premium Light Theme for SmileCare Dental Clinic */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&display=swap');

:root {
    --primary-color: #0284c7;
    --secondary-color: #0369a1;
    --accent-color: #f59e0b;
    --bg-main: #f0f9ff; /* Very soft sky blue */
    --bg-alt: #e0f2fe; /* Slightly deeper sky blue */
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #475569;
    --gradient: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
    --gradient-hero: linear-gradient(135deg, #7dd3fc 0%, #38bdf8 100%);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.5);
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-main);
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header & Nav */
.navbar {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.navbar-brand h3 {
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 600;
    color: var(--text-main) !important;
    position: relative;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after, .nav-link.active::after {
    width: 80%;
}

/* Hero Section */
.hero-section {
    position: relative;
    background: var(--gradient-hero);
    overflow: hidden;
    min-height: 100vh;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 2rem 0;
    animation: fadeUp 1s ease-out;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    color: #0f172a;
    text-shadow: 0 2px 10px rgba(255,255,255,0.5);
}

/* Page Headers (About, Contact, etc) */
.page-header {
    background: var(--gradient);
    color: white !important;
    border-bottom: 1px solid var(--glass-border);
}

/* Buttons */
.btn {
    border-radius: 50px;
    font-weight: 600;
    padding: 0.75rem 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(2, 132, 199, 0.3);
    background: var(--secondary-color);
}

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

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

/* Sections */
.bg-light { background-color: var(--bg-main) !important; }
.bg-white { background-color: var(--bg-alt) !important; }
.bg-dark { background-color: #0f172a !important; color: white !important; }
.text-muted { color: var(--text-muted) !important; }
.text-dark { color: var(--text-main) !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }

/* Cards */
.card, .service-card, .blog-card {
    border: 1px solid rgba(0,0,0,0.05) !important;
    border-radius: 20px;
    background: var(--card-bg) !important;
    transition: all 0.4s ease;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.card-body h5, .card-body h4 {
    color: var(--text-main);
}

.service-card:hover, .blog-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md) !important;
    border-color: var(--primary-color) !important;
}

.service-icon i {
    font-size: 3rem;
    color: var(--primary-color);
}

/* Appointment Section */
#appointment {
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.appointment-form {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0,0,0,0.05);
}

.form-control, .form-select {
    border-radius: 12px;
    border: 1px solid #cbd5e1;
    background: #f8fafc;
    color: var(--text-main) !important;
    padding: 0.8rem 1.2rem;
}

.form-control::placeholder { color: #94a3b8; }

.form-control:focus, .form-select:focus {
    background: #ffffff;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.2);
}

/* Blog Images */
.blog-img-container {
    height: 220px;
    overflow: hidden;
}

.blog-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.blog-card:hover .blog-img-container img {
    transform: scale(1.1);
}

/* Footer */
footer {
    background-color: #0f172a !important;
}

.footer-link {
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--primary-color) !important;
    padding-left: 5px;
}

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

/* Utils */
.text-primary { color: var(--primary-color) !important; }

/* Mobile spaces */
@media (max-width: 991px) {
    .d-lg-none {
        display: block !important;
    }
}