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

/*
  Metric-compatible fallback for Inter.
  size-adjust / ascent-override / descent-override / line-gap-override
  are tuned so Arial fills the same space as Inter — no layout shift on font swap.
*/
@font-face {
  font-family: 'Inter Fallback';
  src: local('Arial');
  ascent-override:  90.20%;
  descent-override: 22.48%;
  line-gap-override: 0%;
  size-adjust:      107.40%;
}

:root {
  --teal: #0f766e;
  --teal-dark: #115e59;
  --teal-soft: rgba(15,118,110,.12);
  --blue: #1d6fe8;
  --orange: #f59e0b;
  --bg: #f0f6ff;
  --surface: #ffffff;
  --surface-2: #f7faff;
  --border: rgba(30,60,120,.1);
  --text: #0f1c2e;
  --text-2: #4a5a72;
  --text-3: #8898aa;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 20px 60px rgba(15,40,90,.1);
  --shadow-sm: 0 4px 20px rgba(15,40,90,.07);
}

html { scroll-behavior: smooth; }

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

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 14px 0;
  transition: background .3s, box-shadow .3s;
}
.nav.scrolled {
  background: rgba(240,246,255,.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  font-size: 18px;
  font-weight: 600;
  flex-shrink: 0;
}
.logo-icon { font-size: 22px; }
.nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  transition: color .2s;
}
.nav-links a:hover { color: var(--teal); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 8px;
}

.lang-select {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
  transition: border-color .2s, color .2s;
  font-family: inherit;
}
.lang-select:hover { border-color: var(--teal); color: var(--teal); }
.lang-select:focus { outline: none; border-color: var(--teal); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all .2s;
  white-space: nowrap;
}
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-full { width: 100%; justify-content: center; }

.btn-primary {
  background: var(--teal);
  color: #fff;
}
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(15,118,110,.3); }

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { background: var(--surface); color: var(--text); }

.btn-outline {
  background: transparent;
  color: var(--teal);
  border: 1.5px solid var(--teal);
}
.btn-outline:hover { background: var(--teal-soft); }

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 140px 0 100px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .5;
}
.hero-blob-1 {
  width: 600px; height: 600px;
  top: -200px; right: -100px;
  background: radial-gradient(circle, rgba(29,111,232,.18), transparent 70%);
}
.hero-blob-2 {
  width: 500px; height: 500px;
  bottom: -150px; left: -100px;
  background: radial-gradient(circle, rgba(15,118,110,.15), transparent 70%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30,60,120,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,60,120,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(15,118,110,.1);
  border: 1px solid rgba(15,118,110,.2);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 24px;
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); }
}
.hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--text);
  margin-bottom: 20px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: var(--text-3);
}
.meta-sep { color: var(--border); }

/* ===== APP MOCKUP ===== */
.hero-visual {
  position: relative;
}
.app-mockup {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow), 0 0 0 1px var(--border);
  overflow: hidden;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition: transform .4s;
}
.app-mockup:hover {
  transform: perspective(1200px) rotateY(-1deg) rotateX(1deg);
}
.mockup-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #f0f2f5;
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }
.mockup-title {
  font-size: 11px;
  color: var(--text-3);
  margin-left: 8px;
  font-weight: 500;
}
.mockup-body { padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.mockup-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mockup-badge-pill {
  font-size: 10px;
  font-weight: 700;
  color: var(--teal);
  background: var(--teal-soft);
  padding: 3px 10px;
  border-radius: 100px;
}
.mockup-auth-pill {
  font-size: 10px;
  color: #22c55e;
  font-weight: 600;
}
.mockup-toolbar {
  display: flex;
  gap: 6px;
  align-items: center;
}
.mockup-input {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 10px;
  color: var(--text-2);
}
.mockup-btn-load {
  background: var(--teal);
  color: #fff;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 10px;
  font-weight: 700;
}
.mockup-main {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 8px;
  height: 180px;
}
.mockup-left { display: flex; flex-direction: column; gap: 8px; }
.mockup-panel {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  overflow: hidden;
}
.panel-label {
  font-size: 9px;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 6px;
}
.gantt-mock { flex: 1; }
.gantt-rows { display: flex; flex-direction: column; gap: 5px; }
.gantt-row {
  height: 8px;
  background: rgba(30,60,120,.06);
  border-radius: 4px;
  overflow: hidden;
}
.gantt-bar { height: 100%; border-radius: 4px; }
.costs-mock { flex: 0 0 auto; height: 70px; }
.costs-svg { width: 100%; height: 100%; }
.viewer-mock { display: flex; flex-direction: column; }
.viewer-3d {
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 8px;
  position: relative;
}
.building-3d {
  display: flex;
  flex-direction: column-reverse;
  gap: 3px;
  align-items: center;
}
.b-floor {
  border-radius: 4px;
  background: #5bbf5b;
  opacity: .85;
}
.b-f1 { width: 80px; height: 14px; }
.b-f2 { width: 72px; height: 14px; }
.b-f3 { width: 64px; height: 14px; }
.b-f4 { width: 56px; height: 14px; }
.b-f5 { width: 48px; height: 14px; }
.b-floor.active { background: #ff3333; opacity: .7; }
.viewer-label-date {
  position: absolute;
  bottom: 4px; right: 8px;
  font-size: 9px;
  color: var(--text-3);
  font-weight: 600;
}
.mockup-timeline {
  border-top: 1px solid var(--border);
  padding-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.timeline-track {
  height: 4px;
  background: rgba(30,60,120,.1);
  border-radius: 2px;
  position: relative;
}
.timeline-thumb {
  position: absolute;
  left: 40%;
  top: -4px;
  width: 12px; height: 12px;
  background: var(--teal);
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(15,118,110,.4);
}
.timeline-btns {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tl-btn {
  font-size: 10px;
  font-weight: 700;
  color: var(--teal);
  background: var(--teal-soft);
  padding: 3px 10px;
  border-radius: 100px;
}
.tl-date { font-size: 10px; color: var(--text-3); font-weight: 600; }
.mockup-glow {
  position: absolute;
  bottom: -40px; right: -40px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(15,118,110,.15), transparent 70%);
  pointer-events: none;
  filter: blur(40px);
}

/* ===== STATS ===== */
.stats {
  padding: 60px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.stat-num {
  font-size: 40px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 10px;
}
.stat-label { font-size: 13px; color: var(--text-2); line-height: 1.5; }

/* ===== FEATURES ===== */
.features { padding: 80px 0; }
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--teal);
  background: var(--teal-soft);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.section-sub { font-size: 16px; color: var(--text-2); max-width: 480px; margin: 0 auto; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
  opacity: 0;
  transition: opacity .2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-card:hover::before { opacity: 1; }
/* feature-card-wide removed — all 6 cards equal */
.feature-card-wide { grid-column: unset; }
.feature-icon-wrap {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.accent-teal { background: rgba(15,118,110,.1); color: var(--teal); }
.accent-blue { background: rgba(29,111,232,.1); color: var(--blue); }
.accent-orange { background: rgba(245,158,11,.1); color: var(--orange); }
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-2); line-height: 1.65; }
.feature-tag {
  display: inline-block;
  margin-top: 14px;
  font-size: 11px;
  font-weight: 700;
  color: var(--teal);
  background: var(--teal-soft);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ===== HOW IT WORKS ===== */
.how {
  padding: 80px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  max-width: 900px;
  margin: 0 auto;
}
.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 20px;
}
.step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(15,118,110,.3);
}
.step-content h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.step-content p { font-size: 14px; color: var(--text-2); line-height: 1.65; }
.step-connector {
  flex: 0 0 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
  margin-top: 28px;
  opacity: .3;
}

/* ===== PRICING ===== */
.pricing { padding: 80px 0; }
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.pricing-card-featured {
  border-color: var(--teal);
  box-shadow: 0 0 0 1px var(--teal), var(--shadow);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--teal);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
  white-space: nowrap;
}
.pricing-name { font-size: 14px; font-weight: 700; color: var(--text-3); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 12px; }
.pricing-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 4px; }
.price-num { font-size: 52px; font-weight: 800; line-height: 1; color: var(--text); }
.price-cur { font-size: 24px; font-weight: 700; color: var(--text-2); }
.pricing-period { font-size: 13px; color: var(--text-3); margin-bottom: 28px; }
.pricing-features { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.pricing-features li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-2); }
.check { color: var(--teal); font-weight: 700; font-size: 15px; }

/* ===== CTA ===== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #0a1628 0%, #0f2a4a 50%, #0a2a28 100%);
  position: relative;
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(15,118,110,.3), transparent 70%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  text-align: center;
}
.cta-title {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.cta-sub { font-size: 16px; color: rgba(255,255,255,.6); margin-bottom: 40px; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-section .btn-ghost { color: rgba(255,255,255,.7); border-color: rgba(255,255,255,.2); }
.cta-section .btn-ghost:hover { background: rgba(255,255,255,.08); color: #fff; }

/* ===== FOOTER ===== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-logo { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; color: var(--text); }
.footer-links { display: flex; gap: 20px; margin-left: auto; }
.footer-links a { font-size: 13px; color: var(--text-3); text-decoration: none; transition: color .2s; }
.footer-links a:hover { color: var(--teal); }
.footer-copy { font-size: 12px; color: var(--text-3); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { order: -1; }
  .app-mockup { transform: none; max-width: 480px; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .steps { flex-direction: column; align-items: center; gap: 32px; }
  .step-connector { width: 2px; height: 40px; flex: 0 0 40px; margin-top: 0; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
  .nav-links { display: none; }
}

@media (max-width: 600px) {
  .hero { padding: 100px 0 60px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { margin-left: 0; }
}

/* ===== FONT LOADING ===== */
/*
  While fonts-loading: text is invisible (font-display:block hides it anyway),
  we show an animated shimmer on text containers so the page doesn't look broken.
  Once fonts-loaded: fade everything in smoothly.
*/
.fonts-loading body { opacity: 0; }

.fonts-loaded body {
  animation: fonts-fadein .25s ease both;
}

@keyframes fonts-fadein {
  from { opacity: 0; }
  to   { opacity: 1; }
}