/* ============================================================
   JAPY Glass & Aluminum, Architect
   Palette: #008eb1 #3385a4 #0095d6 #3184c8 #447dcc
   ============================================================ */

:root {
  /* base surfaces */
  --bg:        #0a1620;
  --bg-2:      #0c1c2a;
  --surface:   rgba(255,255,255,0.035);
  --surface-2: rgba(255,255,255,0.06);
  --line:      rgba(255,255,255,0.10);
  --line-soft: rgba(255,255,255,0.06);

  /* blue accent system */
  --b1: #008eb1;
  --b2: #3385a4;
  --b3: #0095d6;
  --b4: #3184c8;
  --b5: #447dcc;
  --accent:   var(--b3);
  --accent-2: var(--b1);
  --grad: linear-gradient(120deg, var(--b1) 0%, var(--b3) 45%, var(--b5) 100%);

  /* text */
  --text:   #eaf2f8;
  --muted:  #9fb3c2;
  --faint:  #6b8294;

  --radius:   18px;
  --radius-lg: 26px;
  --maxw:     1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow: 0 18px 50px -20px rgba(0,0,0,0.6);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* subtle ambient background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(900px 600px at 80% -10%, rgba(0,149,214,0.10), transparent 60%),
    radial-gradient(700px 500px at 0% 110%, rgba(0,142,177,0.10), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

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

/* ---------- NAV (top bar) ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 22, 32, 0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 24px;
}
.logo {
  font-weight: 800;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}
.logo .dot { color: var(--accent); }

.nav-links { display: flex; gap: 4px; }
.nav-link {
  font-size: 0.92rem;
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 8px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav-link:hover { color: var(--text); background: var(--surface-2); }

.nav-cta {
  font-size: 0.9rem;
  font-weight: 600;
  color: #04141d;
  background: var(--grad);
  padding: 10px 18px;
  border-radius: 10px;
  transition: transform 0.25s var(--ease), filter 0.25s var(--ease);
}
.nav-cta:hover { transform: translateY(-1px); filter: brightness(1.08); }

/* ---------- LAYOUT ---------- */
main { position: relative; z-index: 1; }
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 96px 24px;
}
.section-head { margin-bottom: 48px; max-width: 720px; }
.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.section-sub { color: var(--muted); margin-top: 16px; font-size: 1.02rem; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 24px 80px;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.4;
}
.glow-a { width: 520px; height: 520px; background: var(--b3); top: -160px; right: -100px; }

.hero-inner { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; width: 100%; }
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.04;
  margin-bottom: 22px;
}
.hero-sub { color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.2rem); max-width: 600px; }
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 0.96rem;
  padding: 13px 26px;
  border-radius: 100px;
  transition: transform 0.25s var(--ease), filter 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { color: #04141d; background: var(--grad); }
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.08); }
.btn-ghost { color: var(--text); border-color: var(--line); background: var(--surface); }
.btn-ghost:hover { transform: translateY(-2px); background: var(--surface-2); border-color: rgba(255,255,255,0.2); }

/* ---------- CARDS (symmetric grid) ---------- */
.cards-grid {
  display: grid;
  gap: 22px;
}
.cards-grid.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}
.cards-grid.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}
.card, .project {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.card:hover, .project:hover {
  transform: translateY(-6px);
  border-color: rgba(0,149,214,0.45);
  background: var(--surface-2);
}
.card-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 14px;
}
.card h3, .project h3 {
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.card p, .project-body p { color: var(--muted); font-size: 0.98rem; }

/* ---------- PROJECTS ---------- */
.project { overflow: hidden; padding: 0; }
.project-media {
  height: 220px;
  position: relative;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  background: var(--bg-2);
}
.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}
.project:hover .project-media img { transform: scale(1.05); }
.project-media::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0; top: 0;
  background: linear-gradient(to top, rgba(8,18,26,0.55) 0%, rgba(8,18,26,0.05) 45%, transparent 70%);
  pointer-events: none;
}
.tone-1 { background: linear-gradient(135deg, var(--b1), var(--b4)); }
.tone-2 { background: linear-gradient(135deg, var(--b2), var(--b5)); }
.tone-3 { background: linear-gradient(135deg, var(--b3), var(--b1)); }
.tone-4 { background: linear-gradient(135deg, var(--b4), var(--b2)); }
.tone-5 { background: linear-gradient(135deg, var(--b5), var(--b3)); }
.tone-6 { background: linear-gradient(135deg, var(--b1), var(--b5)); }

.project-tag {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #04141d;
  background: rgba(255,255,255,0.85);
  padding: 5px 10px;
  border-radius: 100px;
}
.project-body { padding: 24px 26px 28px; }
.project-loc { color: var(--faint); font-size: 0.85rem; margin-bottom: 10px; font-family: 'JetBrains Mono', monospace; }

/* ---------- PROCESS ---------- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
}
.step-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.6rem;
  font-weight: 500;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  margin-bottom: 14px;
}
.step h3 { font-size: 1.08rem; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 0.93rem; }

/* ---------- STATS ---------- */
.stats { text-align: center; }
.stats .section-head { margin: 0 auto 56px; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 20px;
}
.count {
  display: block;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat-label { color: var(--muted); margin-top: 8px; font-size: 0.95rem; }
.stats-foot { color: var(--faint); margin-top: 40px; font-size: 0.88rem; font-family: 'JetBrains Mono', monospace; letter-spacing: 0.03em; }

/* ---------- CONTACT ---------- */
.contact-wrap { max-width: 760px; margin: 0 auto; }
.inquiry-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--text);
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px 14px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}
.field textarea { resize: vertical; }
.field input::placeholder,
.field textarea::placeholder { color: var(--faint); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(0,149,214,0.06);
  box-shadow: 0 0 0 3px rgba(0,149,214,0.18);
}
.field select { appearance: none; cursor: pointer; }
.form-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.form-alt { color: var(--muted); font-size: 0.92rem; }
.form-alt a { color: var(--accent); }
.form-note { color: var(--faint); font-size: 0.85rem; margin-top: -4px; }
.form-note a { color: var(--accent); }
.form-iframe { position: absolute; width: 0; height: 0; border: 0; }
.form-success {
  position: fixed; inset: 0; z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  background: rgba(6, 14, 20, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.form-success[hidden] { display: none; }
.form-success-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  text-align: center;
  max-width: 380px;
  box-shadow: var(--shadow);
  animation: pop 0.3s var(--ease);
}
@keyframes pop { from { transform: scale(0.92); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.form-success-check {
  width: 56px; height: 56px; margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: #04141d;
  background: var(--grad); border-radius: 50%;
}
.form-success-card h3 { font-size: 1.4rem; margin-bottom: 8px; }
.form-success-card p { color: var(--muted); margin-bottom: 22px; }
@media (max-width: 600px) {
  .inquiry-form { padding: 26px 20px; }
  .form-row { grid-template-columns: 1fr; }
}

/* ---------- FOOTER ---------- */
.footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding: 50px 24px;
  position: relative; z-index: 1;
  background: var(--bg-2);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  text-align: center;
  color: var(--muted);
}
.footer-fine { color: var(--faint); font-size: 0.85rem; }

/* ---------- SCROLL REVEAL ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in-view { opacity: 1; transform: none; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px) {
  .cards-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .cards-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .section { padding: 80px 18px; }
  .cards-grid.cols-3 { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .nav-inner { padding: 10px 12px 10px 18px; }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}