/* ===== AURA HOLISTIC DENTAL CLINIC - LUXURY PREMIUM STYLES ===== */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Colors - Exact Brand Kit Palette */
    --radiant-gold: #D4AF37;
    --pure-gold: #FFD700;
    --deep-black: #000000;
    --charcoal-black: #0A0A0A;
    --soft-gold: #F4E4C1;
    --champagne: #F7E7CE;
    --gold-shimmer: #E8C54F;
    --white: #FFFFFF;
    
    /* Gradients */
    --primary-gradient: linear-gradient(135deg, #D4AF37 0%, #FFD700 100%);
    --dark-gradient: linear-gradient(135deg, #000000 0%, #0A0A0A 100%);
    --gold-glow: 0 0 30px rgba(212, 175, 55, 0.4);
    --gold-glow-intense: 0 0 50px rgba(212, 175, 55, 0.6);
    
    /* Typography */
    --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-elegant: 'Cinzel', 'Cormorant Garamond', serif;
    
    /* Spacing */
    --section-padding: 6rem 0;
    --section-padding-mobile: 4rem 0;
    
    /* Shadows */
    --shadow-gold: 0 4px 30px rgba(212, 175, 55, 0.25);
    --shadow-gold-hover: 0 8px 40px rgba(212, 175, 55, 0.4);
    --shadow-deep: 0 10px 50px rgba(0, 0, 0, 0.8);
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

/* ===== BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.7;
    color: var(--white);
    background: var(--deep-black);
    overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-elegant);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: 0.02em;
}

/* ===== LOADING SCREEN ===== */
#loading-screen {
    background: linear-gradient(135deg, #000000 0%, #0A0A0A 50%, rgba(212, 175, 55, 0.1) 100%);
    transition: opacity 0.6s ease-out, visibility 0.6s ease-out;
}

#loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-tooth {
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.loading-progress {
    animation: loading-progress 2s ease-in-out;
}

@keyframes loading-progress {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* ===== LANGUAGE TOGGLE ===== */
.language-toggle {
    transition: var(--transition-smooth);
}

.lang-btn {
    font-weight: 600;
    transition: var(--transition-smooth);
    color: var(--soft-gold);
}

.lang-btn.active {
    background: var(--primary-gradient);
    color: var(--deep-black);
}

.lang-btn:hover:not(.active) {
    background: rgba(212, 175, 55, 0.15);
    color: var(--radiant-gold);
}

/* ===== NAVIGATION ===== */
#navbar {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    transition: var(--transition-smooth);
}

#navbar.scrolled {
    background: rgba(0, 0, 0, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.9);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

/* Logo with Luxury Glow Effect */
.logo-luxury {
    filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.4));
    transition: var(--transition-smooth);
    max-height: 80px;
}

.logo-luxury:hover {
    filter: drop-shadow(0 0 30px rgba(212, 175, 55, 0.7)) brightness(1.1);
    transform: scale(1.03);
}

.logo-container {
    display: block;
    padding: 0.25rem 0;
}

/* Navigation Links - Luxury Style */
.nav-link-luxury {
    position: relative;
    color: var(--champagne);
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: var(--transition-smooth);
    padding-bottom: 4px;
    white-space: nowrap;
}

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

.nav-link-luxury:hover {
    color: var(--radiant-gold);
}

.nav-link-luxury:hover::after {
    width: 100%;
}

/* ===== HERO SECTION - LUXURY ===== */
#home {
    position: relative;
    background: radial-gradient(ellipse at center, rgba(10, 10, 10, 0.9) 0%, #000000 100%);
}

#home::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 60%);
    animation: pulse-aura 6s ease-in-out infinite;
    pointer-events: none;
}

@keyframes pulse-aura {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

/* Hero Logo with Aura Glow */
.hero-logo {
    animation: hero-logo-glow 3s ease-in-out infinite;
}

@keyframes hero-logo-glow {
    0%, 100% { 
        filter: drop-shadow(0 0 30px rgba(212, 175, 55, 0.5)) brightness(1);
    }
    50% { 
        filter: drop-shadow(0 0 50px rgba(212, 175, 55, 0.8)) brightness(1.15);
    }
}

@keyframes animate-pulse-slow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.animate-pulse-slow {
    animation: animate-pulse-slow 4s ease-in-out infinite;
}

/* CTA Buttons - Premium Style */
.cta-primary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--primary-gradient);
    color: var(--deep-black);
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    text-decoration: none;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-gold);
    position: relative;
    overflow: hidden;
}

.cta-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.cta-primary:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold-hover);
}

.cta-primary:hover::before {
    left: 100%;
}

.cta-secondary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: transparent;
    color: var(--champagne);
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid var(--radiant-gold);
    border-radius: 50px;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.cta-secondary:hover {
    background: rgba(212, 175, 55, 0.15);
    border-color: var(--gold-shimmer);
    color: var(--radiant-gold);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.3);
}

/* ===== 4 PILLARS SECTION ===== */
.pillar-card {
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.8) 0%, rgba(10, 10, 10, 0.95) 100%);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition-smooth);
}

.pillar-card:hover::before {
    opacity: 1;
}

.pillar-card:hover {
    transform: translateY(-10px);
    border-color: var(--radiant-gold);
    box-shadow: 0 15px 50px rgba(212, 175, 55, 0.3);
}

.pillar-icon-container {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(212, 175, 55, 0.05) 100%);
    border-radius: 50%;
    border: 2px solid rgba(212, 175, 55, 0.3);
    transition: var(--transition-smooth);
}

.pillar-card:hover .pillar-icon-container {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.2) 0%, rgba(212, 175, 55, 0.1) 100%);
    border-color: var(--radiant-gold);
    box-shadow: var(--gold-glow);
}

/* ===== VIP DENTISTRY SECTION ===== */
.vip-feature-card {
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.9) 0%, rgba(0, 0, 0, 0.95) 100%);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    position: relative;
}

.vip-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    opacity: 0;
    transition: var(--transition-smooth);
}

.vip-feature-card:hover::before {
    opacity: 1;
}

.vip-feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--radiant-gold);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.25);
}

/* ===== SERVICE CARDS - LUXURY ===== */
.service-card-luxury {
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.9) 0%, rgba(0, 0, 0, 0.95) 100%);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card-luxury::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.service-card-luxury:hover::after {
    transform: scaleX(1);
}

.service-card-luxury:hover {
    transform: translateY(-10px);
    border-color: var(--radiant-gold);
    box-shadow: 0 15px 50px rgba(212, 175, 55, 0.3);
}

/* ===== CONTACT METHOD CARDS ===== */
.contact-method-card {
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.9) 0%, rgba(0, 0, 0, 0.95) 100%);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.contact-method-card:hover {
    transform: translateY(-8px);
    border-color: var(--radiant-gold);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.25);
}

/* ===== FORM INPUTS - LUXURY ===== */
.form-input-luxury {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(10, 10, 10, 0.8);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 12px;
    color: var(--champagne);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.form-input-luxury:focus {
    outline: none;
    border-color: var(--radiant-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
    background: rgba(10, 10, 10, 0.95);
}

.form-input-luxury::placeholder {
    color: var(--soft-gold);
    opacity: 0.5;
}

/* ===== GALLERY ===== */
.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    cursor: pointer;
}

.gallery-item img {
    transition: var(--transition-smooth);
}

.gallery-item:hover img {
    transform: scale(1.08);
    filter: brightness(1.1);
}

/* ===== DIVIDERS ===== */
.divider-gold {
    width: 120px;
    height: 3px;
    background: var(--primary-gradient);
    margin: 2rem auto;
    border-radius: 2px;
}

/* ===== SCROLL INDICATOR ===== */
@keyframes bounce {
    0%, 100% { transform: translateY(0) translateX(-50%); }
    50% { transform: translateY(10px) translateX(-50%); }
}

.animate-bounce {
    animation: bounce 2s ease-in-out infinite;
}

/* ===== DECORATIVE ELEMENTS ===== */
.gold-accent {
    color: var(--radiant-gold);
}

.text-gradient-gold {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== HOVER EFFECTS ===== */
.hover-lift {
    transition: var(--transition-smooth);
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-glow {
    transition: var(--transition-smooth);
}

.hover-glow:hover {
    filter: drop-shadow(var(--gold-glow));
}

/* ===== BACKDROP BLUR ===== */
.backdrop-blur-glass {
    backdrop-filter: blur(20px);
    background: rgba(10, 10, 10, 0.7);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 5rem 0;
    }
    
    .logo-luxury {
        height: 5rem;
    }
    
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 4rem 0;
    }
    
    .logo-luxury {
        height: 4rem;
    }
    
    .hero-logo {
        width: 12rem !important;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .cta-primary,
    .cta-secondary {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .pillar-card,
    .vip-feature-card,
    .service-card-luxury,
    .contact-method-card {
        padding: 2rem;
    }
}

@media (max-width: 640px) {
    .logo-luxury {
        height: 3.5rem;
    }
    
    .hero-logo {
        width: 10rem !important;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible styles */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 3px solid var(--radiant-gold);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--deep-black);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 6px;
    border: 2px solid var(--deep-black);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--radiant-gold);
}

/* ===== TEXT SELECTION ===== */
::selection {
    background: rgba(212, 175, 55, 0.3);
    color: var(--white);
}

::-moz-selection {
    background: rgba(212, 175, 55, 0.3);
    color: var(--white);
}

/* ===== UTILITY CLASSES ===== */
.text-shadow-gold {
    text-shadow: 0 2px 20px rgba(212, 175, 55, 0.4);
}

.border-gold {
    border-color: var(--radiant-gold);
}

.bg-glass {
    background: rgba(10, 10, 10, 0.7);
    backdrop-filter: blur(10px);
}

.shadow-gold {
    box-shadow: var(--shadow-gold);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out;
}