/* 
  Dental Clinic Website Styles
  Theme: Modern, Medical, Clean
  Colors: Teal (#0D9488), Light Blue (#E0F2F1), White (#FFFFFF)
*/

:root {
    /* Colors */
    --primary-color: #0D9488;
    /* Teal 600 */
    --primary-dark: #0F766E;
    /* Teal 700 */
    --primary-light: #CCFBF1;
    /* Teal 100 */
    --secondary-bg: #F0FDFA;
    /* Very light teal/blue for sections */
    --text-dark: #1E293B;
    /* Slate 800 */
    --text-muted: #64748B;
    /* Slate 500 */
    --white: #FFFFFF;
    --accent-blue: #0EA5E9;
    /* Sky 500 - optional accent */

    /* Spacing */
    --section-padding: 4rem 1rem;
    --container-width: 1200px;

    /* Shadows */
    --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);

    /* Border Radius */
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition: all 0.3s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}

img {
    max-width: 100%;
    border-style: none;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.text-center {
    text-align: center;
}

.text-primary {
    color: var(--primary-color);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--text-dark);
}

.section-title span {
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

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

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

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

/* Header & Nav */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    border-bottom: 1px solid var(--secondary-bg);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-dark);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* Hero Section */
.hero {
    padding: 6rem 1rem;
    background: linear-gradient(to right, var(--secondary-bg), var(--white));
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Services Grid */
.services {
    padding: var(--section-padding);
    background-color: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--secondary-bg);
    text-align: center;
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* About Section */
.about {
    padding: var(--section-padding);
    background-color: var(--secondary-bg);
}

.about .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
}

.about-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item h4 {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 800;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Testimonials */
.testimonials {
    padding: var(--section-padding);
}

.testimonials-slider {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding-bottom: 2rem;
    scroll-snap-type: x mandatory;
}

.testimonial-card {
    min-width: 300px;
    background: var(--secondary-bg);
    padding: 2rem;
    border-radius: var(--radius-lg);
    scroll-snap-align: center;
}

.stars {
    color: #F59E0B;
    /* Amber 500 */
    margin-bottom: 1rem;
}

.testimonial-card p {
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.patient-name {
    font-weight: 600;
    color: var(--text-dark);
}

/* Contact & Info */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.info-card {
    text-align: center;
    padding: 2rem;
    background: var(--secondary-bg);
    border-radius: var(--radius-lg);
}

.info-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 4rem 1rem 1rem;
}

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

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--primary-light);
}

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

.footer-col ul li a {
    color: #94A3B8;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #94A3B8;
    font-size: 0.9rem;
}

/* Form Styles */
.booking-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

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

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

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #CBD5E1;
    border-radius: var(--radius-md);
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .nav-links {
        display: none;
        /* Add toggle logic in JS */
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .about .container {
        grid-template-columns: 1fr;
    }

    .about-stats {
        justify-content: center;
    }
}

/* Grid Helpers (added for Contact Page layout) */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -1rem;
}

.col-md-6 {
    width: 50%;
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .col-md-6 {
        width: 100%;
        text-align: center;
        margin-bottom: 2rem;
    }
}

/* Form Grid Row */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}