/* ==========================================================================
   Virtual Solutionz - Modern Static Stylesheet
   Compatible with Cloudflare Pages & Cloudflare Workers Static Assets
   ========================================================================== */

:root {
  --bg-dark: #090d16;
  --bg-card: rgba(22, 29, 45, 0.7);
  --bg-card-hover: rgba(30, 41, 64, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 210, 255, 0.3);
  
  --primary: #00d2ff;
  --primary-glow: #0080ff;
  --accent-purple: #7928ca;
  --accent-pink: #ff0080;
  --accent-green: #10b981;
  --accent-gold: #f59e0b;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-heading: #ffffff;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Space Grotesk', sans-serif;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

/* Reset & Global Elements */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography & Utilities */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--text-heading);
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #3a7bd5 50%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 0.75rem;
  background: rgba(0, 210, 255, 0.1);
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid rgba(0, 210, 255, 0.2);
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 650px;
  margin: 0 auto;
}

.text-center { text-align: center; }
.text-gold { color: var(--accent-gold); }
.text-purple { color: var(--accent-purple); }
.text-cyan { color: var(--primary); }
.text-green { color: var(--accent-green); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-glow));
  color: #000000;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 210, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 210, 255, 0.5);
  background: linear-gradient(135deg, #33dcff, #1a8cff);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  transition: var(--transition);
  background: rgba(9, 13, 22, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar.scrolled {
  padding: 0.8rem 0;
  background: rgba(9, 13, 22, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  color: #ffffff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.4);
}

.logo-text .highlight {
  color: var(--primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

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

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 10rem 0 6rem;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.15) 0%, rgba(121, 40, 202, 0.1) 40%, rgba(9, 13, 22, 0) 70%);
  filter: blur(80px);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.4rem;
  margin-bottom: 1.2rem;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-metrics {
  display: flex;
  gap: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-num {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Hero Visual / Code Card */
.hero-visual {
  position: relative;
}

.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.card-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.2rem;
  background: rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid var(--border-color);
}

.dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.bar-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: monospace;
}

.code-preview {
  padding: 1.5rem;
  font-family: 'Consolas', 'Fira Code', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

.code-preview .kwd { color: #ff79c6; }
.code-preview .var { color: #50fa7b; }
.code-preview .prop { color: #8be9fd; }
.code-preview .str { color: #f1fa8c; }
.code-preview .num { color: #bd93f9; }
.code-preview .func { color: #ffb86c; }

.status-indicator {
  padding: 0.8rem 1.2rem;
  background: rgba(16, 185, 129, 0.1);
  border-top: 1px solid rgba(16, 185, 129, 0.2);
  font-size: 0.8rem;
  color: var(--accent-green);
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.floating-badge {
  position: absolute;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.floating-badge i { font-size: 1.4rem; }
.floating-badge strong { display: block; font-size: 0.9rem; }
.floating-badge small { color: var(--text-muted); font-size: 0.75rem; }

.fb-1 { top: -20px; right: -20px; }
.fb-2 { bottom: -20px; left: -20px; }

/* Services Section */
.services {
  padding: 6rem 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3.5rem;
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 210, 255, 0.4);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
}

.service-card.highlighted {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(0, 210, 255, 0.08) 0%, var(--bg-card) 100%);
}

.service-tag {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: var(--primary);
  color: #000;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 12px;
  text-transform: uppercase;
}

.service-icon {
  width: 55px;
  height: 55px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.bg-purple { background: rgba(121, 40, 202, 0.2); color: #b76eff; }
.bg-blue { background: rgba(0, 210, 255, 0.2); color: var(--primary); }
.bg-green { background: rgba(16, 185, 129, 0.2); color: var(--accent-green); }

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.service-features i {
  color: var(--primary);
  font-size: 0.8rem;
}

/* Estimator / Calculator Section */
.calculator-section {
  padding: 4rem 0 6rem;
}

.glass-container {
  background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.01) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  backdrop-filter: blur(20px);
}

.calc-body {
  max-width: 800px;
  margin: 2.5rem auto 0;
}

.calc-group {
  margin-bottom: 2rem;
}

.calc-label {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-heading);
}

.calc-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.calc-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.calc-btn i { font-size: 1.3rem; }

.calc-btn.active, .calc-btn:hover {
  border-color: var(--primary);
  background: rgba(0, 210, 255, 0.12);
  color: #ffffff;
}

.calc-checkboxes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.check-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.check-card input { display: none; }

.check-box {
  width: 18px;
  height: 18px;
  border: 2px solid var(--text-muted);
  border-radius: 4px;
  display: inline-block;
  position: relative;
  transition: var(--transition);
}

.check-card input:checked + .check-box {
  background-color: var(--primary);
  border-color: var(--primary);
}

.check-card input:checked + .check-box::after {
  content: '✓';
  position: absolute;
  top: -3px;
  left: 3px;
  color: #000;
  font-size: 12px;
  font-weight: bold;
}

.calc-result-box {
  margin-top: 2.5rem;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-glow);
  padding: 1.8rem 2rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.price-tag {
  font-size: 2.5rem;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--primary);
}

/* About Us */
.about {
  padding: 6rem 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.about-text {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.skills-progress {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.progress-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
}

.progress {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent-purple));
  border-radius: 10px;
}

.about-cards-column {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.5rem 1.8rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.info-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255,255,255,0.18);
}

.info-card i {
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
}

.info-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.info-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Portfolio Section */
.portfolio {
  padding: 6rem 0;
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin: 2.5rem 0 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.5rem 1.2rem;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--primary);
  color: #000;
  border-color: var(--primary);
  font-weight: 700;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.8rem;
}

.portfolio-item {
  transition: var(--transition);
}

.item-inner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.portfolio-item:hover .item-inner {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: 0 10px 30px rgba(0, 210, 255, 0.2);
}

.item-badge {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.8rem;
}

.item-icon {
  font-size: 2rem;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.item-inner h3 {
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}

.item-inner p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tags span {
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 6px;
  color: var(--text-muted);
}

/* Testimonials */
.testimonials {
  padding: 6rem 0;
  background: linear-gradient(180deg, rgba(9,13,22,0) 0%, rgba(0,210,255,0.03) 50%, rgba(9,13,22,0) 100%);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 2.2rem;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-card.highlighted-test {
  border-color: rgba(121, 40, 202, 0.4);
  background: linear-gradient(180deg, rgba(121, 40, 202, 0.08) 0%, var(--bg-card) 100%);
}

.stars {
  color: var(--accent-gold);
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.quote {
  font-style: italic;
  font-size: 0.98rem;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}

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

.avatar-ph {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
}

.author-info strong {
  display: block;
  font-size: 0.95rem;
}

.author-info span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Contact Section */
.contact {
  padding: 6rem 0 8rem;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-info p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-top: 1rem;
  margin-bottom: 2.5rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.c-detail {
  display: flex;
  align-items: center;
  gap: 1rem;

}

.c-detail i {
  font-size: 1.4rem;
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
}

.c-detail strong { display: block; font-size: 0.95rem; }
.c-detail span { color: var(--text-muted); font-size: 0.85rem; }

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.contact-form-card h3 {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.3rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-heading);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group select option {
  background: #0d1117;
  color: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 10px rgba(0, 210, 255, 0.2);
}

.form-status {
  margin-top: 1rem;
  font-size: 0.9rem;
  padding: 0.8rem;
  border-radius: var(--radius-sm);
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

/* Footer */
.footer {
  background: rgba(4, 7, 12, 0.95);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.f-col h4 {
  font-size: 1rem;
  margin-bottom: 1.2rem;
}

.f-col a {
  display: block;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 0.6rem;
}

.f-col a:hover {
  color: var(--primary);
}

.hosting-badge {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive Styles for Mobile and Tablets */
@media (max-width: 992px) {
  .hero-title { font-size: 2.6rem; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle { margin: 0 auto 2rem; }
  .hero-actions { justify-content: center; }
  .hero-metrics { justify-content: center; }
  .fb-1 { right: 10px; }
  .fb-2 { left: 10px; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    right: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(9, 13, 22, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: flex-start;
    padding: 2.5rem 1.5rem;
    gap: 1.8rem;
    transition: var(--transition);
  }

  .nav-menu.active {
    left: 0;
  }

  .hero-title { font-size: 2.2rem; }
  .section-title { font-size: 1.9rem; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .calc-result-box { flex-direction: column; text-align: center; }
  .footer-links { grid-template-columns: 1fr; }
}