/* 
   Luxury Smiles Clinic - Design System
   Colors: Deep Charcoal, Premium Gold, Pearl White
*/

:root {
    /* Color Palette */
    --primary-gold: #C5A059;
    --primary-gold-light: #d4b87d;
    --primary-gold-dark: #a68546;
    --deep-charcoal: #121212;
    --medium-charcoal: #1e1e1e;
    --pearl-white: #F8F9FA;
    --text-muted: #a0a0a0;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Montserrat', sans-serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;

    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--deep-charcoal);
    color: var(--pearl-white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--pearl-white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

ul {
    list-style: none;
}

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

/* Reusable Components */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 2px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
}

.btn-primary {
    background-color: var(--primary-gold);
    color: var(--deep-charcoal);
}

.btn-primary:hover {
    background-color: var(--pearl-white);
    transform: translateY(-3px);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--primary-gold);
    color: var(--primary-gold);
}

.btn-outline:hover {
    background-color: var(--primary-gold);
    color: var(--deep-charcoal);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 3rem;
    margin-bottom: 15px;
}

.section-title .divider {
    width: 60px;
    height: 3px;
    background-color: var(--primary-gold);
    margin: 0 auto;
}

/* Glassmorphism Utility */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 30px 0;
    transition: var(--transition-smooth);
}

header.scrolled {
    padding: 15px 0;
    background: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 2px;
}

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

#navbar ul {
    display: flex;
    gap: 40px;
}

#navbar ul li a {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
    color: var(--pearl-white);
    opacity: 0.8;
}

#navbar ul li a:hover,
#navbar ul li a.active {
    color: var(--primary-gold);
    opacity: 1;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-sm {
    padding: 10px 25px;
    font-size: 0.75rem;
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 992px) {
    .mobile-menu-toggle {
        display: block;
    }

    #navbar {
        display: none;
        /* Mobile menu implementation later */
    }
}

/* Hero Section */
#home {
    height: 100vh;
    background: linear-gradient(rgba(18, 18, 18, 0.7), rgba(18, 18, 18, 0.7)), url('../images/hero.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
}

.hero-content {
    max-width: 900px;
}

.hero-content h1 {
    font-size: 5rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 3rem;
    }
}

/* Stats Section */
.stats-section {
    padding: 60px 0;
    background-color: var(--medium-charcoal);
    border-bottom: 1px solid var(--glass-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    gap: 30px;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-gold);
    margin-bottom: 5px;
}

.stat-item p {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--text-muted);
}

/* Services Section */
#services {
    padding: var(--section-padding);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    padding: 40px;
    background: var(--medium-charcoal);
    border: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-gold);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--primary-gold);
    margin-bottom: 25px;
}

.service-card h4 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.service-link {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-gold);
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* About Section */
#about {
    padding: var(--section-padding);
    background-color: var(--deep-charcoal);
}

.about-wrapper {
    display: flex;
    align-items: center;
    gap: 80px;
}

.about-content {
    flex: 1;
}

.about-content h2 {
    font-size: 3rem;
    margin-bottom: 30px;
    line-height: 1.1;
}

.about-content p {
    margin-bottom: 25px;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.about-features {
    margin-top: 40px;
}

.about-feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.about-feature-item i {
    color: var(--primary-gold);
    font-size: 1.2rem;
}

.about-image {
    flex: 1;
    position: relative;
}

.about-image img {
    border-radius: 2px;
    box-shadow: 20px 20px 0 var(--primary-gold);
}

/* Team Section */
#team {
    padding: var(--section-padding);
    background-color: var(--medium-charcoal);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.team-card {
    background-color: var(--deep-charcoal);
    border: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
    overflow: hidden;
}

.team-card:hover {
    border-color: var(--primary-gold);
    transform: translateY(-5px);
}

.team-img {
    height: 350px;
    overflow: hidden;
    position: relative;
}

.team-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.team-card:hover .team-img img {
    transform: scale(1.05);
}

.team-info {
    padding: 30px;
    text-align: center;
}

.team-info h4 {
    font-size: 1.4rem;
    color: var(--primary-gold);
    margin-bottom: 5px;
}

.team-info span {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

@media (max-width: 992px) {
    .about-wrapper {
        flex-direction: column;
        text-align: center;
    }

    .about-feature-item {
        justify-content: center;
    }

    .about-image img {
        box-shadow: none;
        border: 2px solid var(--primary-gold);
    }
}

/* Contact Section */
#contact {
    padding: var(--section-padding);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 30px;
}

.contact-detail {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-detail i {
    font-size: 1.5rem;
    color: var(--primary-gold);
    margin-top: 5px;
}

.contact-detail div h5 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-detail div p {
    color: var(--text-muted);
}

.contact-form {
    padding: 50px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px;
    background: var(--medium-charcoal);
    border: 1px solid var(--glass-border);
    color: var(--pearl-white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-gold);
}

.form-group textarea {
    height: 150px;
    resize: none;
}

/* Footer */
footer {
    padding: 80px 0 30px;
    background-color: #0a0a0a;
    border-top: 1px solid var(--glass-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 25px;
    color: var(--primary-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-col p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 25px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.social-links a:hover {
    background-color: var(--primary-gold);
    color: var(--deep-charcoal);
    border-color: var(--primary-gold);
}

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

.footer-links li a {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-links li a:hover {
    color: var(--primary-gold);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.85rem;
}

@media (max-width: 992px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile Navigation Overlay */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 100%;
    width: 100%;
    height: 100vh;
    background: var(--deep-charcoal);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: var(--transition-smooth);
}

.mobile-overlay.active {
    left: 0;
}

.mobile-overlay ul {
    text-align: center;
}

.mobile-overlay ul li {
    margin-bottom: 30px;
}

.mobile-overlay ul li a {
    font-size: 2rem;
    font-family: var(--font-heading);
    letter-spacing: 2px;
}

.mobile-close {
    position: absolute;
    top: 30px;
    right: 30px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--primary-gold);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 3000;
}

.toast {
    background: var(--medium-charcoal);
    border-left: 4px solid var(--primary-gold);
    color: var(--pearl-white);
    padding: 20px 30px;
    margin-bottom: 15px;
    border-radius: 2px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 15px;
    transform: translateX(120%);
    transition: var(--transition-smooth);
}

.toast.active {
    transform: translateX(0);
}

.toast i {
    font-size: 1.2rem;
    color: var(--primary-gold);
}

/* Form Validation States */
.form-group input:invalid:not(:placeholder-shown) {
    border-color: #ff4d4d;
}

.form-group input:valid:not(:placeholder-shown) {
    border-color: #2ecc71;
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-gold);
    color: var(--deep-charcoal);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    z-index: 999;
}

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

/* Animations (To be used with AOS or custom JS) */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}