@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

:root {
  --orange: #F56E0F;
  --orange-light: #FF8C3A;
  --orange-dark: #C4550A;
  --orange-pale: #FFF3EB;
  --dark: #0E0E0E;
  --dark-2: #1A1A1A;
  --dark-3: #2A2A2A;
  --mid: #666;
  --light: #F8F8F8;
  --white: #FFFFFF;
  --border: #E8E8E8;
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.13);
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); color: var(--dark); background: var(--white); line-height: 1.7; -webkit-font-smoothing: antialiased; }

h1,h2,h3,h4,h5 { font-family: var(--font-head); line-height: 1.15; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { color: var(--mid); font-weight: 300; }
a  { color: var(--orange); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--orange-dark); }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }

/* NAV */
nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.96); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-logo { font-family: var(--font-head); font-weight: 800; font-size: 1.2rem; color: var(--dark); text-decoration: none; display: flex; align-items: center; gap: 10px; }
.nav-logo .logo-dot { color: var(--orange); }
.logo-mark { width: 32px; height: 32px; background: var(--orange); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-family: var(--font-head); font-weight: 800; font-size: 1rem; color: white; }
.nav-links { display: flex; gap: 28px; list-style: none; align-items: center; }
.nav-links a { font-family: var(--font-head); font-weight: 600; font-size: 0.85rem; color: var(--dark); letter-spacing: 0.03em; text-transform: uppercase; }
.nav-links a:hover, .nav-links a.active { color: var(--orange); }
.nav-cta { background: var(--orange) !important; color: white !important; padding: 9px 20px; border-radius: 6px; }
.nav-cta:hover { background: var(--orange-dark) !important; }
.hamburger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--dark); border-radius: 2px; transition: var(--transition); }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; border-radius: var(--radius); font-family: var(--font-head); font-weight: 700; font-size: 0.95rem; cursor: pointer; border: none; transition: all var(--transition); text-decoration: none; }
.btn-primary { background: var(--orange); color: white; }
.btn-primary:hover { background: var(--orange-dark); color: white; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,110,15,0.3); }
.btn-outline { background: transparent; color: var(--dark); border: 2px solid var(--border); }
.btn-outline:hover { border-color: var(--orange); color: var(--orange); transform: translateY(-2px); }
.btn-white { background: white; color: var(--dark); }
.btn-white:hover { background: var(--orange-pale); color: var(--orange); transform: translateY(-2px); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* TAG */
.tag { display: inline-block; padding: 4px 14px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; font-family: var(--font-head); background: var(--orange-pale); color: var(--orange); letter-spacing: 0.05em; text-transform: uppercase; }

/* HERO */
.hero { background: var(--dark); padding: 110px 0 100px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -80px; right: -100px; width: 640px; height: 640px; background: radial-gradient(circle, rgba(245,110,15,0.18) 0%, transparent 68%); border-radius: 50%; pointer-events: none; }
.hero::after { content: ''; position: absolute; bottom: -120px; left: 20%; width: 480px; height: 480px; background: radial-gradient(circle, rgba(245,110,15,0.07) 0%, transparent 68%); border-radius: 50%; pointer-events: none; }
.hero .container { position: relative; z-index: 2; }
.hero h1 { color: var(--white); max-width: 800px; }
.hero h1 em { color: var(--orange); font-style: normal; }
.hero > .container > p { color: rgba(255,255,255,0.6); max-width: 560px; font-size: 1.1rem; margin: 24px 0 40px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 56px; margin-top: 72px; flex-wrap: wrap; padding-top: 40px; border-top: 1px solid rgba(255,255,255,0.1); }
.stat-num { font-family: var(--font-head); font-size: 2.2rem; font-weight: 800; color: var(--orange); }
.stat-label { color: rgba(255,255,255,0.45); font-size: 0.85rem; margin-top: 3px; }

/* PAGE HERO */
.page-hero { background: var(--dark); padding: 72px 0 60px; }
.page-hero h1 { color: white; }
.page-hero p { color: rgba(255,255,255,0.6); margin-top: 14px; font-size: 1.05rem; max-width: 580px; }
.breadcrumb { font-size: 0.82rem; margin-bottom: 16px; color: rgba(255,255,255,0.35); }
.breadcrumb a { color: var(--orange); }
.breadcrumb a:hover { color: var(--orange-light); }

/* SECTION HEADER */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header .tag { margin-bottom: 16px; }
.section-header h2 { margin-bottom: 14px; }
.section-header p { max-width: 520px; margin: 0 auto; font-size: 1.05rem; }

/* CARDS */
.card { background: var(--white); border: 1px solid var(--border); border-radius: 14px; padding: 36px; transition: all var(--transition); }
.card:hover { border-color: var(--orange); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.card-icon { width: 52px; height: 52px; background: var(--orange-pale); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.card-icon svg { width: 26px; height: 26px; fill: var(--orange); }
.card h3 { margin-bottom: 10px; color: var(--dark); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

/* CTA BANNER */
.cta-banner { background: var(--orange); border-radius: 20px; padding: 56px 48px; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-banner h2 { color: white; margin-bottom: 10px; }
.cta-banner p { color: rgba(255,255,255,0.75); }

/* DOWNLOAD TABLE */
.dl-wrap { background: white; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.dl-table { width: 100%; border-collapse: collapse; }
.dl-table th { text-align: left; padding: 14px 24px; font-family: var(--font-head); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mid); background: var(--light); border-bottom: 1px solid var(--border); }
.dl-table td { padding: 20px 24px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.dl-table tr:last-child td { border-bottom: none; }
.dl-table tr:hover td { background: var(--orange-pale); }
.dl-name { font-family: var(--font-head); font-weight: 700; color: var(--dark); font-size: 1rem; }
.dl-desc { font-size: 0.88rem; color: var(--mid); margin-top: 3px; }
.badge { display: inline-block; padding: 3px 11px; border-radius: 999px; font-size: 0.72rem; font-weight: 700; font-family: var(--font-head); letter-spacing: 0.04em; }
.badge-stable { background: #E6F9EE; color: #1A7A3E; }
.badge-beta { background: #FFF3CD; color: #856404; }
.sys-icons { display: flex; gap: 8px; }
.sys-icon { width: 28px; height: 28px; background: var(--light); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; font-weight: 700; font-family: var(--font-head); color: var(--mid); }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q { width: 100%; background: none; border: none; text-align: left; padding: 22px 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-head); font-weight: 600; font-size: 1rem; color: var(--dark); transition: color var(--transition); }
.faq-q:hover { color: var(--orange); }
.faq-icon { font-size: 1.5rem; color: var(--orange); transition: transform 0.2s; line-height: 1; }
.faq-a { display: none; padding: 0 0 22px; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-item.open .faq-a { display: block; }

/* CONTACT */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-family: var(--font-head); font-weight: 600; font-size: 0.9rem; margin-bottom: 8px; color: var(--dark); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 13px 16px; border: 1.5px solid var(--border); border-radius: var(--radius); font-family: var(--font-body); font-size: 0.95rem; color: var(--dark); background: var(--white); transition: border-color var(--transition); outline: none; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--orange); }
.form-group textarea { resize: vertical; min-height: 140px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-success { display: none; background: #E6F9EE; border: 1px solid #82D8A4; border-radius: var(--radius); padding: 16px 20px; color: #1A7A3E; margin-top: 16px; font-weight: 500; }

/* INFO BOX */
.info-box { background: var(--orange-pale); border-left: 4px solid var(--orange); border-radius: 0 var(--radius) var(--radius) 0; padding: 18px 22px; margin: 20px 0; }
.info-box p { color: var(--dark); font-size: 0.95rem; }

/* AVATAR */
.team-card { text-align: center; padding: 32px 24px; }
.avatar { width: 72px; height: 72px; border-radius: 50%; background: var(--orange-pale); margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; font-family: var(--font-head); font-size: 1.4rem; font-weight: 800; color: var(--orange); }

/* FOOTER */
footer { background: var(--dark); color: rgba(255,255,255,0.5); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .nav-logo { color: white; margin-bottom: 14px; }
.footer-brand p { font-size: 0.9rem; max-width: 260px; line-height: 1.8; }
.footer-col h4 { font-family: var(--font-head); font-weight: 700; color: white; font-size: 0.92rem; margin-bottom: 18px; letter-spacing: 0.03em; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,0.5); font-size: 0.9rem; transition: color var(--transition); }
.footer-col ul a:hover { color: var(--orange); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; }
.footer-bottom a { color: rgba(255,255,255,0.35); }
.footer-bottom a:hover { color: var(--orange); }

/* UTILS */
.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }  .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-40 { margin-top: 40px; }
.mb-0  { margin-bottom: 0; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; }
.bg-light { background: var(--light); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-banner { flex-direction: column; text-align: center; }
}
@media (max-width: 640px) {
  .grid-3, .grid-2, .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: white; padding: 20px 24px; border-bottom: 1px solid var(--border); gap: 16px; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .hero-stats { gap: 28px; }
}