/* ============================================================
   REM39 — Design System 2026
   System Theme (Light/Dark) · Celeste + Dorado · Responsive
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ---------- Custom Properties — LIGHT MODE (Default) ---------- */
:root {
  /* Brand Colors */
  --celeste: #00AEF1;
  --celeste-light: #4ecbf8;
  --celeste-dark: #008bc1;
  --dorado: #F68634;
  --dorado-light: #f9a262;
  --dorado-dark: #c46219;

  /* Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f7fa;
  --bg-tertiary: #edf0f5;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-glass: rgba(32, 168, 224, 0.04);
  --bg-glass-hover: rgba(32, 168, 224, 0.08);

  /* Text */
  --text-primary: #1a1a2e;
  --text-secondary: #555566;
  --text-muted: #8a8a9a;

  /* Accents mapped */
  --accent-1: var(--celeste);
  --accent-2: var(--dorado);
  --accent-glow: rgba(32, 168, 224, 0.2);

  /* Gradients */
  --gradient-main: linear-gradient(135deg, var(--celeste), var(--celeste-light));
  --gradient-accent: linear-gradient(135deg, var(--celeste), var(--dorado));
  --gradient-hero-light: linear-gradient(135deg, #f0f8ff 0%, #fdf8f0 50%, #f0f8ff 100%);
  --gradient-hero-dark: linear-gradient(135deg, #0a1929 0%, #1a0f05 50%, #0a1929 100%);
  --gradient-hero: var(--gradient-hero-light);
  --gradient-text: linear-gradient(135deg, var(--celeste), var(--dorado));
  --gradient-cta: linear-gradient(135deg, rgba(32,168,224,0.94), rgba(212,148,28,0.9));

  /* Borders */
  --border-glass: rgba(0, 0, 0, 0.08);
  --border-active: rgba(32, 168, 224, 0.35);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.1);
  --shadow-glow: 0 0 30px rgba(32, 168, 224, 0.12);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Typography */
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  --text-xs: clamp(0.75rem, 1.5vw, 0.813rem);
  --text-sm: clamp(0.875rem, 1.6vw, 0.938rem);
  --text-base: clamp(1rem, 1.8vw, 1.063rem);
  --text-lg: clamp(1.125rem, 2vw, 1.25rem);
  --text-xl: clamp(1.25rem, 2.2vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 2.8vw, 2rem);
  --text-3xl: clamp(2rem, 4vw, 3rem);
  --text-4xl: clamp(2.5rem, 5vw, 4rem);
  --text-5xl: clamp(3rem, 7vw, 5.5rem);

  /* Layout */
  --max-width: 1280px;
  --border-radius: 16px;
  --border-radius-sm: 10px;
  --border-radius-lg: 24px;
  --border-radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(.4,0,.2,1);
  --transition-base: 0.35s cubic-bezier(.4,0,.2,1);
  --transition-slow: 0.6s cubic-bezier(.4,0,.2,1);

  /* WhatsApp */
  --whatsapp-green: #25D366;

  /* Header specific */
  --header-bg: rgba(255, 255, 255, 0.85);
  --header-border: rgba(0, 0, 0, 0.06);

  /* Hero orbs */
  --orb-1-color: var(--celeste);
  --orb-2-color: var(--dorado);
  --orb-opacity: 0.15;

  /* Grid overlay */
  --grid-color: rgba(0,0,0,0.03);

  /* Service icon bg */
  --service-icon-bg: rgba(32, 168, 224, 0.08);
  --service-icon-border: rgba(32, 168, 224, 0.12);

  /* Why icon */
  --why-icon-bg: rgba(212, 148, 28, 0.08);
  --why-icon-border: rgba(212, 148, 28, 0.12);

  /* CTA button in CTA section */
  --cta-btn-bg: rgba(255,255,255,0.2);
  --cta-btn-border: rgba(255,255,255,0.35);
  --cta-btn-hover-bg: rgba(255,255,255,0.3);

  /* Footer */
  --footer-bg: #1a1a2e;
  --footer-text: #ccc;
  --footer-muted: #888;
  --footer-heading: #fff;
  --footer-border: rgba(255,255,255,0.08);

  /* WA chat body */
  --wa-body-bg: #f0f2f5;
  --wa-msg-bg: #fff;
  --wa-msg-text: #333;
  --wa-msg-time: #888;
  --wa-input-bg: #fff;
  --wa-input-border: #ddd;
  --wa-input-text: #333;
  --wa-panel-bg: #fff;
  --wa-panel-border: rgba(0,0,0,0.1);
}



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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

ul, ol {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------- Container ---------- */
.contenedor {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ---------- Section Title ---------- */
.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-title h3 {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-xs);
}

.section-title p {
  color: var(--text-secondary);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

.section-subtitle {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--celeste);
  margin-bottom: var(--space-sm);
  position: relative;
  padding: 6px 16px;
  background: rgba(32, 168, 224, 0.06);
  border: 1px solid rgba(32, 168, 224, 0.12);
  border-radius: var(--border-radius-full);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  border: none;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(32, 168, 224, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
  background: var(--bg-glass-hover);
  border-color: var(--celeste);
  color: var(--celeste);
}

/* ============================================================
   HEADER / NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 12px 0;
  transition: all var(--transition-base);
}

.site-header.scrolled {
  background: var(--header-bg);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid var(--header-border);
  padding: 8px 0;
  box-shadow: var(--shadow-sm);
}

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

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  height: 44px;
  width: auto;
  transition: transform var(--transition-base);
}

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

.logo-text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 4px;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
  transition: width var(--transition-base);
}

.nav-links a:hover {
  color: var(--celeste);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Fix navbar button text contrast and remove hover underline on buttons */
.nav-links a.btn {
  color: #ffffff;
}

.nav-links a.btn::after {
  display: none;
}

.nav-links a.btn:hover {
  color: #ffffff;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1100;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 4px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(32,168,224,0.08) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(212,148,28,0.06) 0%, transparent 50%),
              radial-gradient(circle at 50% 80%, rgba(32,168,224,0.05) 0%, transparent 50%);
  animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(2%, -2%) rotate(1deg); }
  66% { transform: translate(-1%, 1%) rotate(-0.5deg); }
}

/* Grid decorativo */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: var(--space-md);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--border-radius-full);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(10px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--celeste);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(32,168,224,0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(32,168,224,0); }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: var(--space-md);
  letter-spacing: -2px;
  color: var(--text-primary);
}

.hero h1 .gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Orbs decorativos */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: var(--orb-opacity);
  animation: orbFloat 15s ease-in-out infinite;
  pointer-events: none;
}

.hero-orb-1 {
  width: 400px;
  height: 400px;
  background: var(--orb-1-color);
  top: 10%;
  left: -10%;
}

.hero-orb-2 {
  width: 300px;
  height: 300px;
  background: var(--orb-2-color);
  bottom: 10%;
  right: -5%;
  animation-delay: -5s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -20px); }
}

/* ============================================================
   SECTIONS COMMON
   ============================================================ */
section {
  padding: var(--space-3xl) 0;
  position: relative;
}

section:nth-child(even) {
  background: var(--bg-secondary);
}

/* ============================================================
   ABOUT / NOSOTROS
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-image {
  position: relative;
}

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

.about-image::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: calc(var(--border-radius-lg) + 4px);
  background: var(--gradient-accent);
  z-index: -1;
  opacity: 0.25;
  filter: blur(20px);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.stat-item {
  text-align: center;
  padding: var(--space-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--border-radius-sm);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   SERVICES / SERVICIOS
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.service-card {
  position: relative;
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

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

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  background: var(--service-icon-bg);
  border: 1px solid var(--service-icon-border);
  color: var(--celeste);
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: rgba(32, 168, 224, 0.15);
  box-shadow: 0 0 20px rgba(32, 168, 224, 0.15);
}

.service-card h4 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* ============================================================
   PORTFOLIO / TRABAJOS
   ============================================================ */
.portfolio-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.portfolio-item {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,46,0.9) 0%, rgba(26,26,46,0.2) 50%, transparent 100%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.portfolio-item:hover img {
  transform: scale(1.08);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay span {
  font-weight: 600;
  font-size: var(--text-base);
  color: #fff;
}

/* ============================================================
   WHY US / POR QUÉ CONTACTARNOS
   ============================================================ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.why-card {
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
}

.why-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.why-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--why-icon-bg);
  border: 1px solid var(--why-icon-border);
  color: var(--dorado);
  transition: all var(--transition-base);
}

.why-card:hover .why-icon {
  background: rgba(212, 148, 28, 0.15);
  box-shadow: 0 0 30px rgba(212, 148, 28, 0.12);
}

.why-card h4 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.why-card p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* ============================================================
   BLOG
   ============================================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
}

.blog-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.blog-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.blog-card-image {
  overflow: hidden;
}

.blog-card-content {
  padding: var(--space-md);
}

.blog-card-content h4 {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  line-height: 1.4;
}

.blog-card-content p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.blog-card-content a {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--celeste);
  transition: color var(--transition-fast);
}

.blog-card-content a:hover {
  color: var(--dorado);
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  background: var(--gradient-cta) !important;
  text-align: center;
  padding: var(--space-3xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(255,255,255,0.05) 0%, transparent 50%);
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-section h3 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-sm);
  background: none;
  -webkit-text-fill-color: #fff;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section .btn-primary {
  background: var(--cta-btn-bg);
  border: 1px solid var(--cta-btn-border);
  backdrop-filter: blur(10px);
  box-shadow: none;
}

.cta-section .btn-primary:hover {
  background: var(--cta-btn-hover-bg);
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
}

/* ============================================================
   CONTACT / CONTACTO
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-info h4 {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
}

.contact-detail svg {
  color: var(--celeste);
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-group {
  position: relative;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--celeste);
  box-shadow: 0 0 0 3px rgba(32, 168, 224, 0.1);
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--footer-border);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand .logo-link {
  margin-bottom: var(--space-sm);
}

.footer-brand .logo-img {
  height: 40px;
}

.footer-brand p {
  color: var(--footer-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--footer-heading);
  margin-bottom: var(--space-sm);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--footer-muted);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

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

/* Social Icons */
.social-links {
  display: flex;
  gap: 12px;
  margin-top: var(--space-sm);
  flex-wrap: wrap;
}

.social-link {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--footer-muted);
  transition: all var(--transition-base);
}

/* Contact section social links - adapt to section bg */
.contact-info .social-links .social-link {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
}

.social-link:hover {
  transform: translateY(-3px);
}

.social-link.youtube:hover {
  background: rgba(255, 0, 0, 0.15);
  border-color: rgba(255, 0, 0, 0.3);
  color: #FF0000;
  box-shadow: 0 4px 20px rgba(255, 0, 0, 0.2);
}

.social-link.linkedin:hover {
  background: rgba(10, 102, 194, 0.15);
  border-color: rgba(10, 102, 194, 0.3);
  color: #0A66C2;
  box-shadow: 0 4px 20px rgba(10, 102, 194, 0.2);
}

.social-link.instagram:hover {
  background: rgba(225, 48, 108, 0.15);
  border-color: rgba(225, 48, 108, 0.3);
  color: #E1306C;
  box-shadow: 0 4px 20px rgba(225, 48, 108, 0.2);
}

.social-link.facebook:hover {
  background: rgba(24, 119, 242, 0.15);
  border-color: rgba(24, 119, 242, 0.3);
  color: #1877F2;
  box-shadow: 0 4px 20px rgba(24, 119, 242, 0.2);
}

.social-link.twitter:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--footer-border);
  font-size: var(--text-xs);
  color: var(--footer-muted);
}

.footer-bottom a {
  color: var(--celeste);
}

/* ============================================================
   WHATSAPP CHATBOT WIDGET
   ============================================================ */
.wa-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
}

/* Floating button */
.wa-fab {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--whatsapp-green);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 24px rgba(37, 211, 102, 0.4);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  position: relative;
}

.wa-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 32px rgba(37, 211, 102, 0.55);
}

.wa-fab svg {
  width: 28px;
  height: 28px;
  transition: all var(--transition-base);
}

.wa-fab .wa-close-icon {
  display: none;
}

.wa-fab.active .wa-whatsapp-icon {
  display: none;
}

.wa-fab.active .wa-close-icon {
  display: block;
}

/* Tooltip */
.wa-tooltip {
  position: absolute;
  bottom: 72px;
  right: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: 12px;
  font-size: var(--text-xs);
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-glass);
  opacity: 0;
  transform: translateY(8px);
  animation: tooltipIn 0.5s ease forwards;
  animation-delay: 3s;
  pointer-events: none;
}

.wa-tooltip::after {
  content: '';
  position: absolute;
  bottom: -6px;
  right: 24px;
  width: 12px;
  height: 12px;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
  transform: rotate(45deg);
}

.wa-widget.open .wa-tooltip {
  display: none;
}

@keyframes tooltipIn {
  to { opacity: 1; transform: translateY(0); }
}

/* Chat panel */
.wa-panel {
  position: absolute;
  bottom: 74px;
  right: 0;
  width: 360px;
  max-height: 500px; /* Increased to accommodate quick reply chips */
  background: var(--wa-panel-bg);
  border: 1px solid var(--wa-panel-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.96);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.wa-widget.open .wa-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* Chat header */
.wa-header {
  background: var(--whatsapp-green);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0; /* Prevent header from being compressed */
}

.wa-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-lg);
  color: #fff;
  flex-shrink: 0;
  overflow: hidden;
}

.wa-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.wa-header-info h5 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-base);
  color: #fff;
  margin: 0;
}

.wa-header-info p {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.8);
  margin: 0;
}

/* Chat body */
.wa-body {
  flex: 1;
  padding: 20px;
  background: var(--wa-body-bg);
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23000000' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  overflow-y: auto; /* Allow scrolling inside the body if chips take too much space */
}

.wa-message {
  background: var(--wa-msg-bg);
  border: 1px solid var(--border-glass);
  border-radius: 12px 12px 12px 4px;
  padding: 14px 16px;
  font-size: var(--text-sm);
  color: var(--wa-msg-text);
  line-height: 1.6;
  max-width: 90%;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.wa-message .wa-time {
  display: block;
  text-align: right;
  font-size: 11px;
  color: var(--wa-msg-time);
  margin-top: 6px;
}

/* Chat input */
.wa-input-area {
  padding: 14px 16px;
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--wa-panel-bg);
  border-top: 1px solid var(--wa-panel-border);
  flex-shrink: 0; /* Prevent input area from being compressed */
}

.wa-input {
  flex: 1;
  padding: 12px 16px;
  border-radius: var(--border-radius-full);
  border: 1px solid var(--wa-input-border);
  background: var(--wa-input-bg);
  color: var(--wa-input-text);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  outline: none;
  transition: border-color var(--transition-fast);
}

.wa-input:focus {
  border-color: var(--whatsapp-green);
}

.wa-input::placeholder {
  color: var(--text-muted);
}

.wa-send {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--whatsapp-green);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.wa-send:hover {
  background: #22c55e;
  transform: scale(1.06);
}

/* WhatsApp Quick Replies Suggestions */
.wa-quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  padding-top: 4px;
}

.wa-chip {
  background: var(--bg-primary);
  border: 1px solid rgba(0, 174, 241, 0.25);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: var(--border-radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.wa-chip:hover {
  background: var(--celeste);
  color: #fff;
  border-color: var(--celeste);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 174, 241, 0.2);
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet and below */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

/* Tablet */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    flex-direction: column;
    background: var(--bg-primary);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    padding: 100px var(--space-lg) var(--space-lg);
    gap: 4px;
    transition: right var(--transition-base);
    border-left: 1px solid var(--border-glass);
    z-index: 1050;
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links a {
    font-size: var(--text-lg);
    padding: 14px var(--space-sm);
    width: 100%;
    border-radius: var(--border-radius-sm);
  }

  .nav-links a:hover {
    background: var(--bg-glass);
  }

  .nav-links a::after {
    display: none;
  }

  /* Overlay */
  .nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .why-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
  }

  section {
    padding: var(--space-2xl) 0;
  }

  .hero {
    min-height: 100svh;
  }

  .wa-panel {
    width: calc(100vw - 32px);
    right: -8px;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .about-stats {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }

  .portfolio-gallery {
    grid-template-columns: 1fr;
  }

  .logo-text {
    font-size: var(--text-lg);
  }
}

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

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}