/* ============================================
   Ion Vrabie — Reformas y Construcción
   Professional Corporate Design System
   ============================================ */

/* === CSS Custom Properties === */
:root {
  /* Primary Palette — Deep Navy */
  --primary-900: #0c1929;
  --primary-800: #132744;
  --primary-700: #1a365d;
  --primary-600: #234681;
  --primary-500: #2c5282;
  --primary-400: #3b6fa0;
  --primary-300: #5a8ebe;
  --primary-200: #90b8dc;
  --primary-100: #c3daef;
  --primary-50: #e8f0f8;

  /* Accent — Warm Gold */
  --accent-700: #b7791f;
  --accent-600: #d69e2e;
  --accent-500: #ecc94b;
  --accent-400: #f6e05e;
  --accent-300: #faf089;
  --accent-200: #fefcbf;
  --accent-100: #fef9e7;

  /* Neutral — Slate */
  --neutral-900: #1a202c;
  --neutral-800: #2d3748;
  --neutral-700: #4a5568;
  --neutral-600: #718096;
  --neutral-500: #a0aec0;
  --neutral-400: #cbd5e0;
  --neutral-300: #e2e8f0;
  --neutral-200: #edf2f7;
  --neutral-100: #f7fafc;
  --neutral-50: #ffffff;

  /* Semantic */
  --success: #38a169;
  --error: #e53e3e;
  --warning: #dd6b20;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15), 0 8px 20px rgba(0, 0, 0, 0.1);

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

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

  /* 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: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--neutral-800);
  background: var(--neutral-50);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* === Utility Classes === */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent-600);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 32px;
  height: 2px;
  background: var(--accent-600);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--primary-700);
  line-height: 1.2;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--neutral-600);
  max-width: 640px;
  line-height: 1.8;
}

.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after {
  opacity: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: var(--neutral-50);
  box-shadow: 0 4px 15px rgba(26, 54, 93, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(26, 54, 93, 0.4);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-600), var(--accent-700));
  color: var(--neutral-50);
  box-shadow: 0 4px 15px rgba(214, 158, 46, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(214, 158, 46, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--neutral-50);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--neutral-50);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

/* === Header / Navigation === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(12, 25, 41, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent-600), var(--accent-500));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 2px 10px rgba(214, 158, 46, 0.3);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--neutral-50);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.logo-tagline {
  font-size: 0.7rem;
  color: var(--accent-400);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  position: relative;
  padding: 4px 0;
}

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

.nav-links a:hover {
  color: var(--neutral-50);
}

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

.nav-cta {
  padding: 10px 24px !important;
  background: linear-gradient(135deg, var(--accent-600), var(--accent-700));
  border-radius: var(--radius-sm);
  color: var(--neutral-50) !important;
  font-weight: 600 !important;
  box-shadow: 0 2px 10px rgba(214, 158, 46, 0.3);
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(214, 158, 46, 0.4);
}

/* Mobile Menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.mobile-toggle span {
  width: 26px;
  height: 2px;
  background: var(--neutral-50);
  border-radius: 2px;
  transition: all var(--transition-base);
}

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

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* === Hero Section === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(12, 25, 41, 0.92) 0%,
    rgba(26, 54, 93, 0.85) 40%,
    rgba(44, 82, 130, 0.75) 100%
  );
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(214, 158, 46, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(236, 201, 75, 0.06) 0%, transparent 40%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding-top: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(214, 158, 46, 0.15);
  border: 1px solid rgba(214, 158, 46, 0.3);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-400);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero-badge .badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-500);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 900;
  color: var(--neutral-50);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent-500), var(--accent-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 580px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.hero-stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-500);
  line-height: 1;
  margin-bottom: 6px;
}

.hero-stat-label {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: float 3s ease-in-out infinite;
}

.scroll-indicator .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator .wheel {
  width: 3px;
  height: 8px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 3px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
  0% { transform: translateX(-50%) translateY(0); opacity: 1; }
  100% { transform: translateX(-50%) translateY(12px); opacity: 0; }
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* === Services Section === */
.services {
  padding: var(--section-padding);
  background: var(--neutral-100);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neutral-400), transparent);
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--neutral-50);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  border: 1px solid var(--neutral-300);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-600));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-100);
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
}

.service-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary-600);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke var(--transition-base);
}

.service-card:hover .service-icon svg {
  stroke: var(--neutral-50);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-700);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--neutral-600);
  line-height: 1.7;
}

/* === About Section === */
.about {
  padding: var(--section-padding);
  background: var(--neutral-50);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.about-image:hover img {
  transform: scale(1.03);
}

.about-experience-badge {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: var(--neutral-50);
  padding: 24px 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.about-experience-badge .number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--accent-500);
}

.about-experience-badge .text {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

.about-content .section-subtitle {
  margin-bottom: 32px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--neutral-100);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.about-feature:hover {
  background: var(--primary-50);
  transform: translateX(4px);
}

.about-feature-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: linear-gradient(135deg, var(--accent-600), var(--accent-500));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.about-feature-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--neutral-800);
}

/* === Portfolio / Gallery Section === */
.portfolio {
  padding: var(--section-padding);
  background: var(--primary-900);
  position: relative;
  overflow: hidden;
}

.portfolio::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 90%, rgba(214, 158, 46, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 10%, rgba(44, 82, 130, 0.15) 0%, transparent 40%);
}

.portfolio .section-title {
  color: var(--neutral-50);
}

.portfolio .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
  position: relative;
  z-index: 1;
}

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

.portfolio-item:first-child {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: auto;
}

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

.portfolio-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(12, 25, 41, 0.9) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
}

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

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

.portfolio-item-overlay h4 {
  color: var(--neutral-50);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.portfolio-item-overlay p {
  color: var(--accent-400);
  font-size: 0.82rem;
  font-weight: 500;
}

/* === Why Choose Us === */
.why-us {
  padding: var(--section-padding);
  background: var(--neutral-50);
}

.why-us-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.why-us-card {
  text-align: center;
  padding: 40px 24px;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
}

.why-us-card:hover {
  background: var(--neutral-100);
  transform: translateY(-4px);
}

.why-us-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  transition: all var(--transition-base);
}

.why-us-card:hover .why-us-icon {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  box-shadow: 0 8px 24px rgba(26, 54, 93, 0.3);
  transform: scale(1.1);
}

.why-us-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-700);
  margin-bottom: 12px;
}

.why-us-card p {
  font-size: 0.88rem;
  color: var(--neutral-600);
  line-height: 1.7;
}

/* === Contact Section === */
.contact {
  padding: var(--section-padding);
  background: var(--neutral-100);
  position: relative;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  padding: 48px;
  background: linear-gradient(135deg, var(--primary-700), var(--primary-900));
  border-radius: var(--radius-lg);
  color: var(--neutral-50);
  position: relative;
  overflow: hidden;
}

.contact-info::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(214, 158, 46, 0.1) 0%, transparent 60%);
}

.contact-info h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
}

.contact-info > p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 36px;
  position: relative;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.contact-detail:last-child {
  border-bottom: none;
}

.contact-detail-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: rgba(214, 158, 46, 0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contact-detail-text {
  display: flex;
  flex-direction: column;
}

.contact-detail-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-400);
  font-weight: 600;
  margin-bottom: 2px;
}

.contact-detail-value {
  font-size: 1rem;
  color: var(--neutral-50);
  font-weight: 500;
}

.contact-detail-value a {
  color: var(--neutral-50);
}

.contact-detail-value a:hover {
  color: var(--accent-400);
}

.contact-social {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  position: relative;
}

.social-link {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--accent-600);
  transform: translateY(-2px);
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--neutral-50);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-300);
}

.contact-form-wrapper h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary-700);
  margin-bottom: 8px;
}

.contact-form-wrapper > p {
  color: var(--neutral-600);
  font-size: 0.92rem;
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--neutral-700);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--neutral-800);
  background: var(--neutral-100);
  border: 2px solid var(--neutral-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary-500);
  background: var(--neutral-50);
  box-shadow: 0 0 0 4px rgba(44, 82, 130, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--neutral-500);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit-btn {
  width: 100%;
  padding: 16px;
  font-size: 1rem;
}

.form-note {
  text-align: center;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--neutral-500);
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
}

.form-success.show {
  display: block;
}

.form-success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--success), #48bb78);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
}

.form-success h4 {
  font-size: 1.3rem;
  color: var(--primary-700);
  margin-bottom: 8px;
}

.form-success p {
  color: var(--neutral-600);
  font-size: 0.95rem;
}

/* === CTA Banner === */
.cta-banner {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-700), var(--primary-900));
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(214, 158, 46, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(236, 201, 75, 0.08) 0%, transparent 40%);
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--neutral-50);
  margin-bottom: 16px;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* === Footer === */
.footer {
  background: var(--primary-900);
  color: rgba(255, 255, 255, 0.6);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 300px;
}

.footer h4 {
  color: var(--neutral-50);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.footer-links a {
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: var(--accent-400);
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.footer-contact-item span:first-child {
  font-size: 1rem;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

.footer-bottom a {
  color: var(--accent-400);
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* === WhatsApp Float Button === */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  cursor: pointer;
}

.whatsapp-float:hover {
  transform: scale(1.1) translateY(-4px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: white;
}

.whatsapp-float .tooltip {
  position: absolute;
  right: 72px;
  background: var(--neutral-800);
  color: var(--neutral-50);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(8px);
  transition: all var(--transition-base);
  pointer-events: none;
}

.whatsapp-float:hover .tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* === Animations on Scroll === */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 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; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* === Counter Animation === */
.counter {
  display: inline-block;
}

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

  .about-grid {
    gap: 48px;
  }

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

  .portfolio-item:first-child {
    grid-column: span 2;
    grid-row: span 1;
    aspect-ratio: 16/9;
  }

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

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

@media (max-width: 768px) {
  :root {
    --section-padding: 72px 0;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: rgba(12, 25, 41, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    padding: 40px;
    transition: right var(--transition-base);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
  }

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

  .nav-links a {
    font-size: 1.1rem;
  }

  .hero h1 {
    font-size: clamp(2rem, 7vw, 3rem);
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .hero-stat {
    flex: 1;
    min-width: 100px;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-experience-badge {
    right: 16px;
    bottom: -16px;
  }

  .about-features {
    grid-template-columns: 1fr;
  }

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

  .portfolio-item:first-child {
    grid-column: span 1;
  }

  .why-us-grid {
    grid-template-columns: 1fr;
  }

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

  .contact-info {
    padding: 32px;
  }

  .contact-form-wrapper {
    padding: 32px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .service-card {
    padding: 28px 24px;
  }

  .contact-info {
    padding: 24px;
  }

  .contact-form-wrapper {
    padding: 24px;
  }
}