:root {
  --bg: #f5f0eb;
  --bg-soft: #ede5dc;
  --surface: #ffffff;
  --card: rgba(255, 255, 255, 0.85);
  --card-hover: rgba(255, 255, 255, 0.95);
  --line: rgba(0, 0, 0, 0.07);
  --line-hover: rgba(0, 0, 0, 0.14);
  --text: #1e1e2a;
  --text-secondary: #5a5a72;
  --text-muted: #8a8a9e;
  --primary: #2563eb;
  --primary-hover: #3b82f6;
  --primary-soft: rgba(37, 99, 235, 0.08);
  --accent: #d97706;
  --accent-soft: rgba(217, 119, 6, 0.08);
  --success: #059669;
  --radius: 20px;
  --radius-sm: 14px;
  --radius-xs: 10px;
  --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow: 0 12px 48px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 24px 72px rgba(0, 0, 0, 0.1);
  --max: 1140px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(37, 99, 235, 0.15); color: var(--text); }

a { color: inherit; text-decoration: none; }

.container {
  width: min(90%, var(--max));
  margin: 0 auto;
}

/* ----- HEADER ----- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(245, 240, 235, 0.82);
  border-bottom: 1px solid var(--line);
  transition: border-color 0.3s;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), #1d4ed8);
  color: white;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -1px;
}

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

.brand-name {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.3px;
  color: var(--text);
}

.brand-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.25s;
  border-radius: 2px;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  font-family: var(--font);
  transition: all 0.25s;
  cursor: pointer;
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 12px 36px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  border-color: var(--line-hover);
  background: rgba(0,0,0,0.03);
}

.btn-ghost-light {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--line);
}

.btn-ghost-light:hover {
  border-color: var(--line-hover);
  color: var(--text);
}

/* ----- CONTENT FRAME ----- */
.content-frame {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 24px;
  padding: 36px 40px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}

/* ----- HERO ----- */
.hero {
  padding: 100px 0 80px;
  position: relative;
}

.hero-single {
  padding: 44px 48px;
}

.hero-single .mock-card {
  box-shadow: none;
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.4);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--primary-soft);
  border: 1px solid rgba(37, 99, 235, 0.18);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-tag-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(5, 150, 105, 0.14);
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -1.5px;
  font-weight: 800;
  margin-bottom: 20px;
}

.hero h1 span {
  background: linear-gradient(135deg, #1e1e2a 0%, #2563eb 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.08rem;
  line-height: 1.8;
  max-width: 56ch;
  margin-bottom: 32px;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.hero-metrics {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--line);
  padding-top: 28px;
  max-width: 520px;
}

.hero-metric {
  flex: 1;
}

.hero-metric + .hero-metric {
  border-left: 1px solid var(--line);
  padding-left: 24px;
}

.hero-metric:not(:first-child) {
  padding-left: 24px;
}

.hero-metric strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
}

.hero-metric span {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 400;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mock-card {
  width: min(100%, 440px);
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.mock-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}

.mock-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
}

.mock-dot:nth-child(1) { background: #ef4444; }
.mock-dot:nth-child(2) { background: #f59e0b; }
.mock-dot:nth-child(3) { background: #10b981; }

.mock-body {
  padding: 22px;
  display: grid;
  gap: 18px;
}

.mock-chart {
  height: 150px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(59, 130, 246, 0.03));
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.mock-chart-bars {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 100px;
}

.mock-chart-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--primary), rgba(37, 99, 235, 0.5));
  min-height: 20px;
}

.mock-chart-bar:nth-child(1) { height: 55%; }
.mock-chart-bar:nth-child(2) { height: 75%; }
.mock-chart-bar:nth-child(3) { height: 45%; }
.mock-chart-bar:nth-child(4) { height: 88%; }
.mock-chart-bar:nth-child(5) { height: 62%; }
.mock-chart-bar:nth-child(6) { height: 95%; }
.mock-chart-bar:nth-child(7) { height: 70%; }

.mock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.mock-item {
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.015);
}

.mock-item-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 500;
}

.mock-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.mock-tag {
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  background: rgba(0,0,0,0.03);
  border: 1px solid var(--line);
  color: var(--text-secondary);
}

.mock-progress {
  display: grid;
  gap: 8px;
}

.mock-progress-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mock-progress-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  width: 70px;
  flex-shrink: 0;
}

.mock-progress-track {
  flex: 1;
  height: 8px;
  border-radius: 999px;
  background: rgba(0,0,0,0.05);
  overflow: hidden;
}

.mock-progress-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), #3b82f6);
}

.mock-projects {
  display: grid;
  gap: 8px;
}

.mock-project {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.03);
}

.mock-project-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.mock-project-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
}

/* ----- SECTIONS ----- */
section {
  padding: 60px 0;
  position: relative;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.8px;
  margin-bottom: 14px;
}

.section-desc {
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 64ch;
  font-size: 1rem;
}

.section-header {
  margin-bottom: 40px;
}

/* ----- CARDS ----- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s;
}

.card:hover {
  border-color: var(--line-hover);
  box-shadow: var(--shadow);
  background: var(--card-hover);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  background: var(--primary-soft);
  border: 1px solid rgba(37, 99, 235, 0.15);
  font-size: 1.3rem;
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.2px;
}

.card p {
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 0.95rem;
}

/* ----- ABOUT ----- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}

.about-list {
  list-style: none;
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.about-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.about-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  margin-top: 10px;
  flex-shrink: 0;
}

.about-features {
  display: grid;
  gap: 14px;
}

.about-feature {
  padding: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.25s;
}

.about-feature:hover {
  border-color: var(--line-hover);
  background: var(--card-hover);
}

.about-feature strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 6px;
  font-weight: 700;
}

.about-feature span {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ----- SERVICES ----- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ----- PROJECTS ----- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-thumb {
  height: 180px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(37, 99, 235, 0.02));
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}

.project-thumb-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid var(--line);
  margin-bottom: 16px;
  display: block;
  background: var(--bg-soft);
}

.project-thumb::before {
  content: '';
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.06);
  right: -30px;
  top: -30px;
}

.project-thumb::after {
  content: '';
  position: absolute;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(217, 119, 6, 0.05);
  left: 16px;
  bottom: 16px;
  box-shadow: 60px -20px 0 0 rgba(37, 99, 235, 0.04);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.project-tags span {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  background: rgba(0,0,0,0.03);
  border: 1px solid var(--line);
  color: var(--text-muted);
}

.project-card h3 {
  font-size: 1.05rem;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  padding-top: 4px;
}

.project-links a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  transition: color 0.2s;
}

.project-links a:hover {
  color: var(--primary-hover);
}

/* ----- CONTACT ----- */
.contact-single {
  text-align: center;
  padding: 48px;
}

.contact-single .section-title {
  margin-bottom: 12px;
}

.contact-single .section-desc {
  margin: 0 auto 36px;
}

.contact-form-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
}

.form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

.field input,
.field textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.02);
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.field textarea {
  min-height: 130px;
  resize: vertical;
}

#form-status {
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ----- FOOTER ----- */
footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding: 56px 0 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  max-width: 36ch;
  margin-top: 14px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.92rem;
  padding: 4px 0;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ----- ANIMATIONS ----- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.show {
  opacity: 1;
  transform: translateY(0);
}

.fade-up.show:nth-child(2) { transition-delay: 0.1s; }
.fade-up.show:nth-child(3) { transition-delay: 0.2s; }

/* ----- LIGHTBOX ----- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  justify-content: center;
  align-items: center;
  padding: 32px;
  cursor: zoom-out;
}

.lightbox.open {
  display: flex;
}

.lightbox-img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: 16px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
  object-fit: contain;
  cursor: default;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: none;
  border: none;
  color: white;
  font-size: 2.4rem;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
  line-height: 1;
}

.lightbox-close:hover {
  opacity: 1;
}

.project-thumb-img {
  cursor: zoom-in;
}

/* ----- RESPONSIVE ----- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual { order: -1; }
  .mock-card { max-width: 100%; }
  .hero-metrics { max-width: 100%; }
}

@media (max-width: 768px) {
  .nav-links a:not(.btn) { display: none; }
  .about-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .services-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .mock-grid { grid-template-columns: 1fr; }
  .hero { padding: 60px 0 50px; }
  .hero-single { padding: 28px 24px; }
  section { padding: 40px 0; }
  .hero-metrics { flex-direction: column; gap: 16px; }
  .hero-metric { padding-left: 0 !important; border-left: none !important; }
  .footer-inner { gap: 28px; }
}

@media (max-width: 480px) {
  .container { width: 92%; }
  .hero h1 { font-size: 1.9rem; }
  .mock-body { padding: 16px; }
  .contact-single { padding: 28px 24px; }
  .card { padding: 22px; }
}