/**
 * SMILE DENTAL - Dental Clinic Template
 * Premium dental/healthcare website stylesheet
 */

/* ==========================================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ========================================================================== */

:root {
    /* Colors - Fresh, clean, professional */
    --color-primary: #0ea5e9;
    --color-primary-light: #38bdf8;
    --color-primary-dark: #0284c7;
    --color-secondary: #14b8a6;
    --color-secondary-light: #2dd4bf;
    --color-accent: #22c55e;
    --color-accent-light: #4ade80;

    /* Neutrals */
    --color-white: #ffffff;
    --color-cream: #f8fafc;
    --color-neutral-50: #f8fafc;
    --color-neutral-100: #f1f5f9;
    --color-neutral-200: #e2e8f0;
    --color-neutral-300: #cbd5e1;
    --color-neutral-400: #94a3b8;
    --color-neutral-500: #64748b;
    --color-neutral-600: #475569;
    --color-neutral-700: #334155;
    --color-neutral-800: #1e293b;
    --color-neutral-900: #0f172a;

    /* Dark mode colors */
    --color-dark-bg: #0f172a;
    --color-dark-surface: #1e293b;
    --color-dark-border: #334155;

    /* Typography */
    --font-display: 'Poppins', system-ui, sans-serif;
    --font-sans: 'Open Sans', system-ui, sans-serif;

    /* Typography Scale */
    --text-hero: clamp(2.5rem, 6vw, 4rem);
    --text-display: clamp(2rem, 4vw, 3rem);
    --text-h1: clamp(1.75rem, 3vw, 2.5rem);
    --text-h2: clamp(1.5rem, 2.5vw, 2rem);
    --text-h3: clamp(1.25rem, 2vw, 1.5rem);
    --text-body: 1rem;
    --text-small: 0.875rem;
    --text-xs: 0.75rem;

    /* Spacing Scale (8px base) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(14, 165, 233, 0.2);
    --shadow-glow-lg: 0 0 60px rgba(14, 165, 233, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-spring: 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Mode */
[data-theme="dark"] {
    --color-neutral-50: #1e293b;
    --color-neutral-100: #334155;
    --color-neutral-200: #475569;
    --color-neutral-300: #64748b;
    --color-neutral-400: #94a3b8;
    --color-neutral-500: #cbd5e1;
    --color-neutral-600: #e2e8f0;
    --color-neutral-700: #f1f5f9;
    --color-neutral-800: #f8fafc;
    --color-neutral-900: #ffffff;
}

/* ==========================================================================
   BASE STYLES
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--color-neutral-700);
    background-color: var(--color-white);
}

.dark body {
    background-color: var(--color-dark-bg);
    color: var(--color-neutral-300);
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-neutral-900);
}

.dark h1, .dark h2, .dark h3, .dark h4, .dark h5, .dark h6 {
    color: white;
}

.font-display {
    font-family: var(--font-display);
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */

.nav-blur {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-neutral-100);
    color: var(--color-neutral-700);
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.dark .btn-secondary {
    background: var(--color-dark-surface);
    color: white;
}

.btn-secondary:hover {
    background: var(--color-neutral-200);
}

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

/* ==========================================================================
   CARDS
   ========================================================================== */

.service-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    border: 1px solid var(--color-neutral-100);
    transition: all var(--transition-spring);
}

.dark .service-card {
    background: var(--color-dark-surface);
    border-color: var(--color-dark-border);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.team-card {
    background: white;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-spring);
    box-shadow: var(--shadow-md);
}

.dark .team-card {
    background: var(--color-dark-surface);
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.testimonial-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.dark .testimonial-card {
    background: var(--color-dark-surface);
}

.insurance-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    border: 1px solid var(--color-neutral-100);
    transition: all var(--transition-base);
}

.dark .insurance-card {
    background: var(--color-dark-surface);
    border-color: var(--color-dark-border);
}

.insurance-card:hover {
    border-color: var(--color-primary);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-gradient {
    background: linear-gradient(135deg,
        rgba(14, 165, 233, 0.05) 0%,
        rgba(20, 184, 166, 0.05) 50%,
        rgba(34, 197, 94, 0.05) 100%);
}

.hero-pattern {
    background-image:
        radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(20, 184, 166, 0.1) 0%, transparent 50%);
}

.dark .hero-gradient {
    background: linear-gradient(135deg,
        rgba(14, 165, 233, 0.1) 0%,
        rgba(20, 184, 166, 0.08) 50%,
        rgba(34, 197, 94, 0.05) 100%);
}

/* ==========================================================================
   APPOINTMENT FORM
   ========================================================================== */

.appointment-form {
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--color-neutral-100);
}

.dark .appointment-form {
    background: var(--color-dark-surface);
    border-color: var(--color-dark-border);
}

.form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-neutral-200);
    background: var(--color-neutral-50);
    font-size: var(--text-body);
    transition: all var(--transition-fast);
}

.dark .form-input {
    background: var(--color-dark-bg);
    border-color: var(--color-dark-border);
    color: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

/* ==========================================================================
   ICON CONTAINERS
   ========================================================================== */

.icon-box {
    width: 4rem;
    height: 4rem;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-box-sm {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================================== */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ==========================================================================
   HOVER ANIMATIONS
   ========================================================================== */

.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.hover-zoom {
    overflow: hidden;
}

.hover-zoom img {
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ==========================================================================
   FLOATING ANIMATION
   ========================================================================== */

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.animate-float {
    animation: float 5s ease-in-out infinite;
}

/* Tooth decoration animation */
@keyframes tooth-float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

.tooth-float {
    animation: tooth-float 4s ease-in-out infinite;
}

/* ==========================================================================
   PULSE ANIMATION
   ========================================================================== */

@keyframes pulse-soft {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.animate-pulse-soft {
    animation: pulse-soft 3s ease-in-out infinite;
}

/* ==========================================================================
   STATS COUNTER
   ========================================================================== */

.stat-number {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-display);
    color: var(--color-primary);
}

/* ==========================================================================
   BEFORE/AFTER SLIDER
   ========================================================================== */

.before-after {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-2xl);
}

.before-after-slider {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background: white;
    cursor: ew-resize;
    z-index: 10;
}

.before-after-slider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   WORKING HOURS
   ========================================================================== */

.hours-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-neutral-100);
}

.dark .hours-item {
    border-color: var(--color-dark-border);
}

.hours-item:last-child {
    border-bottom: none;
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

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

    .reveal, .reveal-left, .reveal-right, .reveal-scale {
        opacity: 1;
        transform: none;
    }
}

/* ==========================================================================
   SCROLLBAR
   ========================================================================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-neutral-100);
}

.dark ::-webkit-scrollbar-track {
    background: var(--color-dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-neutral-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-neutral-400);
}

/* ==========================================================================
   SELECTION
   ========================================================================== */

::selection {
    background: rgba(14, 165, 233, 0.2);
    color: var(--color-primary-dark);
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    .no-print {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.section-padding {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
}

.container-lg {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.dark .glass-card {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   CONTENT VISIBILITY (Performance)
   ========================================================================== */

section {
    content-visibility: auto;
    contain-intrinsic-size: 0 500px;
}