/* ============================================
   SONRISAS SANAS - EMERALD LUXURY
   Main Stylesheet
   ============================================ */

:root {
    /* Background Colors */
    --bg-primary: #000000;
    --bg-secondary: #09090B;
    --bg-tertiary: #18181B;
    
    /* Primary Color - Green Scale (Emerald) */
    --primary-50: #F0FDF4;
    --primary-100: #DCFCE7;
    --primary-200: #BBF7D0;
    --primary-300: #86EFAC;
    --primary-400: #4ADE80;
    --primary-500: #22C55E;
    --primary-600: #16A34A;
    --primary-700: #15803D;
    --primary-800: #166534;
    --primary-900: #14532D;
    
    /* RGB values for rgba usage */
    --primary-rgb: 34, 197, 94;
    
    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #E4E4E7;
    --text-tertiary: #A1A1AA;
    --text-quaternary: #71717A;
    
    /* Accent Colors */
    --success: #22C55E;
    --info: #3B82F6;
    --warning: #F59E0B;
    
    /* Gradients */
    --gradient-hero: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 50%, var(--primary-400) 100%);
    --gradient-card: radial-gradient(ellipse at center, rgba(var(--primary-rgb), 0.15) 0%, transparent 70%);
    --gradient-bg: radial-gradient(ellipse at top, rgba(var(--primary-rgb), 0.1) 0%, transparent 50%);
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: clamp(3rem, 8vw, 4.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 5vw, 3rem);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.section-label {
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary-500);
    margin-bottom: 16px;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    margin-bottom: 24px;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-tertiary);
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   PARTICLE BACKGROUND
   ============================================ */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-500);
    border-radius: 50%;
    opacity: 0.4;
    animation: float-particle 20s infinite ease-in-out;
}

@keyframes float-particle {
    0%, 100% { 
        transform: translate(0, 0); 
        opacity: 0.4; 
    }
    25% { 
        transform: translate(100px, -100px); 
        opacity: 0.8; 
    }
    50% { 
        transform: translate(-50px, -200px); 
        opacity: 0.6; 
    }
    75% { 
        transform: translate(-100px, -100px); 
        opacity: 0.8; 
    }
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(var(--primary-rgb), 0.1);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    padding: 16px 0;
}

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

.nav-logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 48px;
    width: auto;
    transition: transform var(--transition-base);
}

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

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-500);
    transition: width var(--transition-base);
}

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

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 44px;
    height: 44px;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    background: var(--gradient-bg);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-label {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary-400);
    margin-bottom: 24px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-tertiary);
    margin-bottom: 32px;
    max-width: 600px;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(var(--primary-rgb), 0.1);
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary-500);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-quaternary);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none;
}

.hero-sphere {
    width: 500px;
    height: 500px;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 40px rgba(var(--primary-rgb), 0.4));
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(2deg); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 30%, var(--primary-400) 60%, var(--primary-500) 100%);
    background-size: 200% 200%;
    animation: gradient-shift 4s ease infinite;
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    padding: 16px 32px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 
        0 0 0 1px rgba(var(--primary-rgb), 0.5),
        0 4px 24px rgba(var(--primary-rgb), 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    filter: brightness(1.1);
    box-shadow: 
        0 0 0 2px rgba(var(--primary-rgb), 0.8),
        0 8px 40px rgba(var(--primary-rgb), 0.6);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    text-decoration: none;
    padding: 16px 32px;
    border-radius: 12px;
    border: 2px solid rgba(var(--primary-rgb), 0.3);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-secondary:hover {
    border-color: var(--primary-500);
    background: rgba(var(--primary-rgb), 0.1);
    transform: translateY(-2px);
}

.btn-small { padding: 12px 24px; font-size: 14px; }
.btn-large { padding: 18px 36px; font-size: 1.125rem; }

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

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

.animate-on-load {
    opacity: 0;
    animation: fade-in-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fade-in-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   SECTIONS
   ============================================ */
.social-proof-section {
    padding: 80px 0;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(var(--primary-rgb), 0.05);
    border-bottom: 1px solid rgba(var(--primary-rgb), 0.05);
}

.social-proof-text {
    text-align: center;
    font-size: 14px;
    color: var(--text-quaternary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 32px;
}

.logos-grid {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.logo-item {
    padding: 12px 24px;
    background: rgba(var(--primary-rgb), 0.05);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    border-radius: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
    transition: all var(--transition-base);
    filter: grayscale(100%);
}

.logo-item:hover {
    filter: grayscale(0%);
    border-color: rgba(var(--primary-rgb), 0.3);
    color: var(--primary-400);
    transform: translateY(-4px);
}

.services-section { padding: 120px 0; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

/* Flip Cards */
.service-card-flip {
    perspective: 1000px;
    height: 400px;
}

.service-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
}

.service-card-flip:hover .service-card-inner {
    transform: rotateY(180deg);
}

.service-card-front, .service-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 24px;
    overflow: hidden;
}

.service-card-front {
    background: var(--bg-tertiary);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
}

.service-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 40px;
    transition: transform var(--transition-slow);
}

.service-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
}

.service-card-back {
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08) 0%, rgba(var(--primary-rgb), 0.04) 50%, rgba(var(--primary-rgb), 0.08) 100%);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transform: rotateY(180deg);
}

.service-title-back { color: var(--primary-400); margin-bottom: 16px; }
.service-features { display: flex; gap: 8px; flex-wrap: wrap; }
.feature-tag {
    padding: 6px 12px;
    background: rgba(var(--primary-rgb), 0.15);
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    border-radius: 50px;
    font-size: 12px;
    color: var(--primary-300);
}

.showcase-section { padding: 120px 0; background: var(--bg-secondary); }
.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.showcase-card {
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08) 0%, rgba(var(--primary-rgb), 0.04) 50%, rgba(var(--primary-rgb), 0.08) 100%);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    border-radius: 24px;
    padding: 48px 32px;
    text-align: center;
}

.showcase-number { font-size: 3rem; color: var(--primary-500); margin-bottom: 8px; }

.testimonials-section { padding: 120px 0; }
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.testimonial-card {
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08) 0%, rgba(var(--primary-rgb), 0.04) 50%, rgba(var(--primary-rgb), 0.08) 100%);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    border-radius: 24px;
    padding: 32px;
}

.testimonial-author { display: flex; gap: 16px; align-items: center; }
.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(var(--primary-rgb), 0.2);
    display: grid;
    place-items: center;
    font-size: 24px;
}

/* Cursor Glow */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
}

/* Footer */
.footer-section { padding: 100px 0 40px; background: var(--bg-secondary); border-top: 1px solid rgba(var(--primary-rgb), 0.1); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 64px; }
.footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.footer-logo-img { height: 40px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: var(--text-tertiary); text-decoration: none; transition: color 0.3s; }
.footer-links a:hover { color: var(--primary-400); }
.footer-bottom { margin-top: 80px; padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, 0.05); display: flex; justify-content: space-between; color: var(--text-quaternary); font-size: 14px; }

/* Responsive */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-label, .hero-subtitle, .hero-ctas, .hero-stats { margin-inline: auto; justify-content: center; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-toggle { display: flex; }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        padding: 40px;
        border-bottom: 1px solid rgba(var(--primary-rgb), 0.1);
    }
}