/* ═══════════════════════════════════════════════════════════
   main7.css — Steel / Slate theme
   Fonts: Inter (body · headings) · JetBrains Mono (labels · tags · numbers)
═══════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg:         #0f172a;           /* slate-900  — main canvas */
  --surface:    #1e293b;           /* slate-800  — cards, boxes */
  --surface2:   #293548;           /* slate-750  — hover surface */
  --border:     #2d3f56;           /* visible divider */
  --border-hi:  #4a6480;           /* highlighted / hover border */
  --accent:     #3b82f6;           /* blue-500 — primary action */
  --accent-hi:  #60a5fa;           /* blue-400 — hover / lighter accent */
  --accent-dim: rgba(59,130,246,0.10);
  --silver:     #94a3b8;           /* slate-400 — metallic mid-tone */
  --silver-hi:  #cbd5e1;           /* slate-300 — bright metallic */
  --text:       #f1f5f9;           /* slate-100 — primary text */
  --text-muted: #94a3b8;           /* slate-400 — secondary text */
  --text-dim:   #475569;           /* slate-600 — tertiary / disabled */
  --nav-bg:     rgba(15,23,42,0.94);
  --nav-border: #1e293b;
  --nav-h:      64px;
  --error:      #f87171;           /* red-400 */
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle dot-grid texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(148,163,184,0.065) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
  z-index: 0;
}

/* ─── NAVIGATION ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nav-border);
  z-index: 100;
}

.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-hi);
  transition: width 0.25s ease;
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

/* ─── LANGUAGE SWITCH ─── */
.lang-switch {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 10px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.lang-btn:hover { color: var(--silver-hi); }

.lang-btn.active {
  background: var(--accent-dim);
  color: var(--accent-hi);
}

/* ─── HAMBURGER ─── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--silver);
  transition: all 0.3s;
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg);  background: var(--accent-hi); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); background: var(--accent-hi); }

/* ─── MOBILE NAV DRAWER ─── */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: #141e30;
  border-bottom: 1px solid var(--border);
  padding: 1.5rem clamp(1.5rem, 5vw, 4rem);
  z-index: 99;
  transform: translateY(-110%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-nav.open { transform: translateY(0); }

.mobile-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.mobile-nav ul li a {
  display: block;
  padding: 0.85rem 0;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.mobile-nav ul li:last-child a { border-bottom: none; }
.mobile-nav ul li a:hover { color: var(--text); }

.mobile-lang {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.mobile-lang .lang-btn {
  flex: 1;
  padding: 8px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.mobile-lang .lang-btn.active {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent-hi);
}

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + 2rem) clamp(1.5rem, 8vw, 6rem) 4rem;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

/* Subtle blue bloom behind hero content */
.hero::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 800px; height: 600px;
  background: radial-gradient(ellipse, rgba(59,130,246,0.07) 0%, transparent 65%);
  transform: translate(-50%, -55%);
  pointer-events: none;
}

.hero-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-hi);
  border: 1px solid rgba(96,165,250,0.28);
  background: rgba(59,130,246,0.06);
  padding: 5px 16px;
  margin-bottom: 2rem;
  display: inline-block;
  animation: fadeUp 0.8s ease both;
}

.hero-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(2.8rem, 9vw, 6.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s 0.15s ease both;
}

/* Name gets a white → steel-blue gradient — elegant, fully visible */
.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, #ffffff 10%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 2.2vw, 1.1rem);
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 3rem;
  line-height: 1.8;
  animation: fadeUp 0.8s 0.3s ease both;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp 0.8s 0.45s ease both;
}

/* ─── BUTTONS ─── */
.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 13px 28px;
  border: 1px solid var(--accent);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  background: var(--accent-hi);
  border-color: var(--accent-hi);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(59,130,246,0.28);
}

.btn-outline {
  background: transparent;
  color: var(--silver);
  padding: 13px 28px;
  border: 1px solid var(--border-hi);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn-outline:hover {
  border-color: var(--silver-hi);
  color: var(--text);
  transform: translateY(-2px);
}

/* ─── SCROLL INDICATOR ─── */
.scroll-hint {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  animation: fadeUp 1s 1s ease both;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-hi), transparent);
  animation: scrollPulse 2s ease infinite;
}

/* ─── SECTIONS ─── */
section {
  padding: clamp(4rem, 10vw, 8rem) clamp(1.5rem, 8vw, 6rem);
  border-top: 1px solid var(--border);
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-hi);
  margin-bottom: 1rem;
}

.section-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.section-body {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 600px;
  line-height: 1.85;
}

/* ─── ABOUT ─── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2.5rem;
}

.stat-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 2px solid var(--border-hi);
  padding: 1.5rem;
  position: relative;
}

.stat-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--accent-hi);
  line-height: 1;
}

.stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.5rem;
}

.about-visual {
  position: relative;
  aspect-ratio: 4/5;
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 6.5rem;
}

.about-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.about-placeholder {
  font-family: 'JetBrains Mono', monospace;
  font-size: 5rem;
  color: var(--border);
  user-select: none;
}

.about-visual::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 35%;
  background: linear-gradient(to top, var(--surface), transparent);
  pointer-events: none;
}

/* ─── SERVICES ─── */
.services-block {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}

.services-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1.75rem;
}

.services-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.service-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  transition: background 0.2s, border-color 0.2s;
}

.service-item:hover {
  background: var(--surface2);
  border-color: var(--border-hi);
}

.service-icon {
  font-size: 1.1rem;
  color: var(--accent-hi);
  line-height: 1.4;
  flex-shrink: 0;
  margin-top: 2px;
}

.service-item div {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.service-item strong {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.service-item span {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ─── PROJECTS ─── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
  cursor: default;
}

.project-card:hover {
  border-color: var(--border-hi);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  transform: translateY(-4px);
}

/* Solid blue accent bar on top — appears on hover */
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.25s;
}

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

.project-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--accent-hi);
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  opacity: 0.8;
}

.project-name {
  font-family: 'Inter', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.project-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.project-more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s, gap 0.2s;
}

.project-more:hover {
  color: var(--accent-hi);
  gap: 0.6rem;
}

.more-arrow { transition: transform 0.2s; }
.project-more:hover .more-arrow { transform: translateX(3px); }

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.5rem;
}

.tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: var(--silver);
  border: 1px solid var(--border);
  background: rgba(148,163,184,0.05);
  padding: 3px 8px;
}

.project-links {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.project-demo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-hi);
  text-decoration: none;
  transition: gap 0.2s, color 0.2s;
}

.project-demo:hover {
  color: var(--text);
  gap: 0.85rem;
}

.demo-arrow { font-size: 1rem; transition: transform 0.2s; }
.project-demo:hover .demo-arrow { transform: translateX(4px); }

/* ─── CONTACT ─── */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-links {
  list-style: none;
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-links li a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}

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

.contact-icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-hi);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--silver);
  flex-shrink: 0;
  transition: border-color 0.2s, color 0.2s;
}

.contact-links li a:hover .contact-icon {
  border-color: var(--accent-hi);
  color: var(--accent-hi);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.form-group input,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--error);
}

.form-error {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  color: var(--error);
  letter-spacing: 0.04em;
  min-height: 1em;
}

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

/* ─── FOOTER ─── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem clamp(1.5rem, 5vw, 4rem);
  text-align: center;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  position: relative;
  z-index: 1;
}

/* ─── ANIMATIONS ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.25; }
  50%       { opacity: 1; }
}

/* ─── CUSTOM SCROLLBAR ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-hi); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .nav-links   { display: none; }
  .lang-switch { display: none; }
  .hamburger   { display: flex; }
  .mobile-nav  { display: block; }

  .about-grid    { grid-template-columns: 1fr; gap: 2rem; }
  .about-visual  { aspect-ratio: 16/9; margin-top: 0; }
  .services-list { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }

  .hero-cta { flex-direction: column; align-items: center; }
  .btn-primary, .btn-outline { width: 100%; max-width: 280px; text-align: center; }
}