@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --font: 'Inter', sans-serif;

  --accent:      #0ea5a0;
  --accent-lt:   #14c4be;
  --accent-dim:  rgba(14,165,160,0.12);
  --accent-dim2: rgba(14,165,160,0.22);

  --coral:       #f97058;
  --coral-dim:   rgba(249,112,88,0.12);

  --bg:          #0c0f12;
  --bg2:         #131820;
  --bg3:         #1a2030;
  --surface:     #1e2535;
  --surface2:    #252d40;
  --border:      rgba(255,255,255,0.06);
  --border2:     rgba(255,255,255,0.11);
  --text:        #e8edf5;
  --text2:       #8a95aa;
  --text3:       #4e5a72;
  --shadow:      0 20px 60px rgba(0,0,0,0.5);
}

[data-theme="light"] {
  --bg:          #f0f4fa;
  --bg2:         #e4eaf5;
  --bg3:         #d8e2f0;
  --surface:     #ffffff;
  --surface2:    #f5f8ff;
  --border:      rgba(0,0,30,0.07);
  --border2:     rgba(0,0,30,0.13);
  --text:        #0c1220;
  --text2:       #3a4560;
  --text3:       #6a7898;
  --shadow:      0 20px 60px rgba(0,40,100,0.10);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.35s ease, color 0.35s ease;
}

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: 62px;
  display: flex; align-items: center;
  padding: 0 2rem;
  background: rgba(12,15,18,0.80);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: background 0.35s;
}
[data-theme="light"] nav {
  background: rgba(240,244,250,0.85);
}

.nav-logo {
  display: flex; align-items: center; gap: 9px;
  font-size: 18px; font-weight: 700; letter-spacing: -0.02em;
  color: var(--text); text-decoration: none;
}
.nav-logo-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.nav-logo-mark svg { width: 16px; height: 16px; fill: #fff; }

.nav-links {
  display: flex; gap: 1.8rem; margin-left: 2.8rem;
}
.nav-links a {
  font-size: 14px; font-weight: 500;
  color: var(--text2); text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.btn-theme {
  width: 34px; height: 34px; border-radius: 8px;
  border: 1px solid var(--border2); background: transparent;
  color: var(--text2); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.btn-theme:hover { background: var(--surface); color: var(--text); }
.btn-theme svg { width: 16px; height: 16px; }

.btn-ghost {
  padding: 7px 15px; border-radius: 8px;
  border: 1px solid var(--border2); background: transparent;
  font-family: var(--font); font-size: 13px; font-weight: 500;
  color: var(--text); cursor: pointer; transition: all 0.2s;
}
.btn-ghost:hover { background: var(--surface); }

.btn-accent {
  padding: 7px 16px; border-radius: 8px;
  border: none; background: var(--accent);
  font-family: var(--font); font-size: 13px; font-weight: 600;
  color: #fff; cursor: pointer; transition: all 0.2s;
}
.btn-accent:hover { background: var(--accent-lt); transform: translateY(-1px); }

.hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 100px 2rem 80px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
}
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
}
.hero-blob-1 {
  width: 600px; height: 600px;
  top: -200px; left: -100px;
  background: var(--accent);
}
.hero-blob-2 {
  width: 500px; height: 500px;
  bottom: -200px; right: -100px;
  background: var(--coral);
}
[data-theme="light"] .hero-blob { opacity: 0.09; }

.hero-content { position: relative; z-index: 1; max-width: 780px; }

.hero-h1 {
  font-size: clamp(2.6rem, 5.5vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.07;
  color: var(--text);
  margin-bottom: 1.4rem;
  animation: fadeUp 0.6s 0.1s ease both;
}
.hero-h1 .accent-word { color: var(--accent); }
.hero-h1 .coral-word  { color: var(--coral); }

.hero-sub {
  font-size: 17px; font-weight: 400;
  color: var(--text2);
  max-width: 520px; margin: 0 auto 2.4rem;
  line-height: 1.75;
  animation: fadeUp 0.6s 0.2s ease both;
}

.hero-ctas {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  animation: fadeUp 0.6s 0.3s ease both;
}
.btn-lg {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 10px;
  font-family: var(--font); font-size: 15px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.btn-lg-accent {
  background: var(--accent); color: #fff; border: none;
}
.btn-lg-accent:hover { background: var(--accent-lt); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(14,165,160,0.3); }
.btn-lg-outline {
  background: transparent; color: var(--text);
  border: 1px solid var(--border2);
}
.btn-lg-outline:hover { background: var(--surface); }
.btn-lg svg { width: 17px; height: 17px; }

.hero-mockup {
  position: relative; z-index: 1;
  margin-top: 4.5rem;
  width: 100%; max-width: 820px;
  border: 1px solid var(--border2);
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
  animation: fadeUp 0.7s 0.4s ease both;
}

.mock-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 12px 16px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.mock-dot { width: 10px; height: 10px; border-radius: 50%; }
.mock-dot-r { background: #ff5f57; }
.mock-dot-y { background: #febc2e; }
.mock-dot-g { background: #28c840; }
.mock-bar-title {
  flex: 1; text-align: center;
  font-size: 12px; font-weight: 600; letter-spacing: 0.01em;
  color: var(--text3);
}

.mock-body { display: flex; min-height: 320px; }

.mock-sidebar {
  width: 190px; flex-shrink: 0;
  border-right: 1px solid var(--border);
  padding: 14px 10px;
  display: flex; flex-direction: column;
}
.mock-sb-section { margin-bottom: 18px; }
.mock-sb-label {
  font-size: 10px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text3);
  padding: 0 8px; margin-bottom: 5px;
}
.mock-sb-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; border-radius: 7px;
  font-size: 12px; font-weight: 500; color: var(--text2);
  cursor: pointer;
}
.mock-sb-item.active {
  background: var(--accent-dim);
  color: var(--accent-lt);
}
[data-theme="light"] .mock-sb-item.active { color: var(--accent); }
.mock-sb-item svg { width: 14px; height: 14px; flex-shrink: 0; }

.mock-storage { margin-top: auto; padding: 8px; }
.mock-storage-label { font-size: 10px; color: var(--text3); margin-bottom: 5px; }
.mock-bar-track { height: 3px; border-radius: 2px; background: var(--border2); }
.mock-bar-fill { height: 100%; width: 38%; border-radius: 2px; background: var(--accent); }

.mock-main { flex: 1; padding: 16px; }
.mock-top {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.mock-top-title { font-size: 13px; font-weight: 700; letter-spacing: -0.01em; }
.mock-actions { display: flex; gap: 6px; }
.mock-icon-btn {
  width: 26px; height: 26px; border-radius: 6px;
  border: 1px solid var(--border2);
  background: transparent; color: var(--text2);
  display: flex; align-items: center; justify-content: center;
}
.mock-icon-btn svg { width: 12px; height: 12px; }

.mock-files { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; }
.mock-file {
  border: 1px solid var(--border);
  border-radius: 9px; padding: 12px 10px;
  background: var(--bg3); cursor: pointer;
  transition: border-color 0.2s;
}
.mock-file:hover { border-color: var(--border2); }
.mock-file-icon { font-size: 22px; margin-bottom: 7px; }
.mock-file-name { font-size: 10px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-file-size { font-size: 9px; color: var(--text3); margin-top: 2px; }

.stats-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 3rem 2rem;
  display: flex; justify-content: center;
  gap: 4rem; flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 2rem; font-weight: 800;
  letter-spacing: -0.04em; color: var(--text);
}
.stat-num span { color: var(--accent); }
.stat-label { font-size: 13px; color: var(--text2); margin-top: 3px; }

.section {
  max-width: 1100px; margin: 0 auto;
  padding: 6rem 2rem;
}

.section-eyebrow {
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.9rem;
}
[data-theme="light"] .section-eyebrow { color: var(--accent); }

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 800; letter-spacing: -0.035em;
  line-height: 1.12; color: var(--text);
  margin-bottom: 0.9rem;
}
.section-sub {
  font-size: 15px; color: var(--text2);
  line-height: 1.75; max-width: 500px; font-weight: 400;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 14px; margin-top: 3rem;
}
.feat-card {
  border: 1px solid var(--border);
  border-radius: 14px; padding: 26px;
  background: var(--surface);
  transition: border-color 0.2s, transform 0.2s;
}
.feat-card:hover { border-color: var(--accent-dim2); transform: translateY(-3px); }

.feat-icon-wrap {
  width: 42px; height: 42px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-dim2);
}
.feat-icon-wrap.coral {
  background: var(--coral-dim);
  border-color: rgba(249,112,88,0.2);
}
.feat-icon-wrap svg { width: 20px; height: 20px; }
.feat-icon-wrap svg path,
.feat-icon-wrap svg rect,
.feat-icon-wrap svg circle,
.feat-icon-wrap svg polyline,
.feat-icon-wrap svg line,
.feat-icon-wrap svg polygon { stroke: var(--accent); }
.feat-icon-wrap.coral svg path,
.feat-icon-wrap.coral svg rect,
.feat-icon-wrap.coral svg circle,
.feat-icon-wrap.coral svg polyline,
.feat-icon-wrap.coral svg line { stroke: var(--coral); }

.feat-title {
  font-size: 14px; font-weight: 700;
  letter-spacing: -0.01em; color: var(--text);
  margin-bottom: 7px;
}
.feat-desc { font-size: 13px; color: var(--text2); line-height: 1.7; }

.ai-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ai-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 6rem 2rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.ai-chat {
  border: 1px solid var(--border2);
  border-radius: 14px; overflow: hidden;
  background: var(--surface);
}
.ai-chat-header {
  padding: 12px 16px; background: var(--bg3);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; color: var(--text2);
}
.ai-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); animation: pulse 2s infinite;
}
.ai-messages { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.ai-msg {
  max-width: 80%; padding: 9px 12px;
  border-radius: 10px; font-size: 12px; line-height: 1.55;
}
.ai-msg-user {
  align-self: flex-end;
  background: var(--accent); color: #fff;
  border-bottom-right-radius: 3px;
}
.ai-msg-bot {
  align-self: flex-start;
  background: var(--bg3); color: var(--text);
  border-bottom-left-radius: 3px;
  border: 1px solid var(--border);
}
.ai-input-row {
  padding: 10px 14px; border-top: 1px solid var(--border);
  display: flex; gap: 8px; align-items: center;
}
.ai-input {
  flex: 1; background: var(--bg3);
  border: 1px solid var(--border2); border-radius: 7px;
  padding: 7px 10px; font-size: 11px; color: var(--text2);
  font-family: var(--font);
}
.ai-send {
  padding: 7px 11px; border-radius: 7px;
  background: var(--accent); border: none;
  color: #fff; font-size: 11px; font-weight: 600;
  cursor: pointer; font-family: var(--font);
}

.cta-section {
  max-width: 1100px; margin: 0 auto 6rem;
  padding: 0 2rem;
}
.cta-box {
  border: 1px solid var(--border2);
  border-radius: 20px; padding: 5rem 2rem;
  text-align: center;
  background: var(--surface);
  position: relative; overflow: hidden;
}
.cta-glow {
  position: absolute; top: -120px; left: 50%; transform: translateX(-50%);
  width: 700px; height: 300px;
  background: radial-gradient(ellipse, rgba(14,165,160,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.cta-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800; letter-spacing: -0.035em;
  color: var(--text); margin-bottom: 0.8rem;
}
.cta-sub { font-size: 15px; color: var(--text2); margin-bottom: 2.2rem; }

footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.footer-copy { font-size: 13px; color: var(--text3); }
.footer-links { display: flex; gap: 1.4rem; }
.footer-links a { font-size: 13px; color: var(--text3); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--text2); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}