/* ═══════════════════════════════════════
   HisabDo — Professional Design System
   ═══════════════════════════════════════ */

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

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

:root {
  --green:      #22c55e;
  --green-dim:  rgba(34,197,94,.12);
  --green-glow: rgba(34,197,94,.25);
  --bg:         #060d1a;
  --bg2:        #0b1220;
  --surface:    rgba(15,23,42,.7);
  --border:     rgba(30,41,59,.9);
  --text:       #f1f5f9;
  --muted:      #94a3b8;
  --radius:     14px;
  --nav-h:      68px;
}

html { scroll-behavior: smooth; }

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

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 3px; }

/* ═══════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════ */
.nav {
  position: sticky;
  top: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  background: rgba(6,13,26,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
  letter-spacing: -.3px;
}

.logo img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: cover;
  border: 1.5px solid var(--green-glow);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: flex-end;
}

.nav-menu nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-right: 16px;
}

.nav-menu nav a {
  padding: 7px 12px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--muted);
  border-radius: 8px;
  transition: color .2s, background .2s;
}

.nav-menu nav a:hover,
.nav-menu nav a.active-nav {
  color: var(--text);
  background: rgba(255,255,255,.06);
}

.nav-menu nav a.active-nav { color: var(--green); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
  border-radius: 8px;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: .3s;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ═══════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green);
  color: #000;
  padding: 11px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  transition: transform .2s, box-shadow .2s;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--green-glow);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1.5px solid #334155;
  color: var(--text);
  padding: 10px 22px;
  border-radius: 10px;
  font-weight: 500;
  font-size: 14px;
  transition: border-color .2s, color .2s, transform .2s;
  white-space: nowrap;
}

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

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 8px;
}

/* ═══════════════════════════════════════
   HERO
   ═══════════════════════════════════════ */
.hero {
  position: relative;
  text-align: center;
  padding: 100px 24px 90px;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(34,197,94,.08) 0%, transparent 70%),
              radial-gradient(ellipse at top, #0f1e35, var(--bg));
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2322c55e' fill-opacity='0.025'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: .4;
  pointer-events: none;
}

.hero > * { position: relative; }

.hero-logo {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  object-fit: cover;
  margin: 0 auto 24px;
  border: 2px solid var(--green-glow);
  box-shadow: 0 0 40px var(--green-glow);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--green-dim);
  border: 1px solid rgba(34,197,94,.3);
  color: var(--green);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 12.5px;
  font-weight: 500;
  margin-bottom: 22px;
  letter-spacing: .3px;
}

.hero h1 {
  font-size: clamp(30px, 5.5vw, 56px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #fff 40%, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h2 {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -.8px;
  line-height: 1.2;
  margin-bottom: 14px;
}

.hero p {
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 28px;
  font-size: 16px;
  line-height: 1.75;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero-note {
  font-size: 13px;
  color: #64748b;
  letter-spacing: .3px;
}

/* Founder hero image */
.founder-hero-img {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 22px;
  border: 3px solid var(--green);
  box-shadow: 0 0 40px var(--green-glow);
}

/* ═══════════════════════════════════════
   SECTIONS
   ═══════════════════════════════════════ */
.section {
  padding: 80px 48px;
  text-align: center;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -.5px;
  margin-bottom: 12px;
}

.section-sub {
  max-width: 680px;
  margin: 0 auto 48px;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.75;
}

.section-divider {
  width: 48px;
  height: 3px;
  background: var(--green);
  border-radius: 2px;
  margin: 12px auto 40px;
}

/* ═══════════════════════════════════════
   GRID & CARDS
   ═══════════════════════════════════════ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 28px 22px;
  border-radius: var(--radius);
  transition: transform .3s, border-color .3s, box-shadow .3s;
  backdrop-filter: blur(8px);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(34,197,94,.4);
  box-shadow: 0 12px 40px rgba(34,197,94,.08);
}

.card img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 14px;
}

.card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.card p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--green-dim);
  border: 1px solid rgba(34,197,94,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-size: 22px;
  color: var(--green);
}

.card-left { text-align: left; }
.card-left .card-icon { margin-left: 0; }

/* ═══════════════════════════════════════
   FEATURE HIGHLIGHT (2-col)
   ═══════════════════════════════════════ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
}

.split-text h2 {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: -.5px;
  margin-bottom: 16px;
}

.split-text p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 28px;
}

.split-list {
  list-style: none;
  margin-bottom: 32px;
}

.split-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted);
  font-size: 14.5px;
  margin-bottom: 12px;
}

.split-list li::before {
  content: '';
  display: block;
  width: 18px;
  height: 18px;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='10' cy='10' r='10' fill='%2322c55e' fill-opacity='.15'/%3E%3Cpath d='M6 10l3 3 5-5' stroke='%2322c55e' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
  flex-shrink: 0;
  margin-top: 2px;
}

.split-img { border-radius: var(--radius); overflow: hidden; }
.split-img img { width: 100%; border-radius: var(--radius); }

/* ═══════════════════════════════════════
   STATS BAR
   ═══════════════════════════════════════ */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 800px;
  margin: 0 auto;
}

.stat-item {
  background: var(--surface);
  padding: 28px 20px;
  text-align: center;
}

.stat-item strong {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--green);
  letter-spacing: -1px;
}

.stat-item span {
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
  display: block;
}

/* ═══════════════════════════════════════
   WHO IS IT FOR (tag chips)
   ═══════════════════════════════════════ */
.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 12px 20px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: border-color .2s, color .2s;
}

.tag:hover { border-color: var(--green); color: var(--text); }

/* ═══════════════════════════════════════
   FOUNDER
   ═══════════════════════════════════════ */
.founder-card {
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
}

.founder-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--green);
  box-shadow: 0 0 30px var(--green-glow);
  margin: 0 auto 18px;
}

.founder-title {
  color: var(--muted);
  font-size: 14px;
  margin: 6px 0 16px;
}

/* ═══════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════ */
.contact-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--green-dim);
  border: 1px solid rgba(34,197,94,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--green);
  margin: 0 auto 16px;
}

/* ═══════════════════════════════════════
   PRIVACY POLICY
   ═══════════════════════════════════════ */
.policy-wrap {
  max-width: 860px;
  margin: 0 auto;
  text-align: left;
}

.policy-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 20px;
}

.policy-section p,
.policy-section li {
  color: #cbd5e1;
  font-size: 14.5px;
  line-height: 1.85;
}

.policy-section ul {
  padding-left: 20px;
  margin-top: 8px;
}

.policy-section ul li { margin-bottom: 6px; }

.policy-h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-top: 40px;
  margin-bottom: 0;
  padding-left: 14px;
  border-left: 3px solid var(--green);
}

.policy-h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--green);
  margin: 18px 0 4px;
}

/* ═══════════════════════════════════════
   SOCIAL
   ═══════════════════════════════════════ */
.social {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.social a {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--muted);
  transition: border-color .2s, color .2s, transform .2s;
}

.social a:hover {
  border-color: var(--green);
  color: var(--green);
  transform: translateY(-3px);
}

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */
footer {
  border-top: 1px solid var(--border);
  padding: 36px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  color: #475569;
  font-size: 13.5px;
}

.footer-links {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #475569;
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 6px;
  transition: color .2s;
}

.footer-links a:hover { color: var(--muted); }

/* ═══════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════ */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════
   RESPONSIVE — 1024px
   ═══════════════════════════════════════ */
@media (max-width: 1024px) {
  .nav { padding: 0 28px; }
  .section { padding: 70px 28px; }
  .split { gap: 32px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* ═══════════════════════════════════════
   RESPONSIVE — 768px
   ═══════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --nav-h: 62px; }

  /* Navbar */
  .nav { padding: 0 20px; position: sticky; flex-wrap: wrap; height: auto; }
  .nav > .logo,
  .nav > .hamburger { margin: 14px 0; }

  .hamburger { display: flex; }

  .nav-menu {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    padding: 8px 0 14px;
    border-top: 1px solid var(--border);
    gap: 0;
  }

  .nav-menu.open { display: flex; }

  .nav-menu nav {
    flex-direction: column;
    align-items: stretch;
    margin-right: 0;
    gap: 2px;
  }

  .nav-menu nav a {
    padding: 11px 8px;
    font-size: 15px;
    border-radius: 8px;
  }

  .nav-menu .btn {
    margin-top: 10px;
    width: 100%;
    justify-content: center;
    border-radius: 10px;
  }

  /* Hero */
  .hero { padding: 60px 20px 52px; }
  .hero-logo { width: 72px; height: 72px; }
  .hero p { font-size: 14.5px; margin-bottom: 22px; }
  .founder-hero-img { width: 110px; height: 110px; }

  /* Section */
  .section { padding: 52px 20px; }
  .section-sub { font-size: 14.5px; margin-bottom: 32px; }

  /* Split layout */
  .split { grid-template-columns: 1fr; gap: 28px; text-align: center; }
  .split-text { order: 1; }
  .split-img  { order: 2; max-width: 100% !important; }
  .split-text p { margin-bottom: 16px; }
  .split-text .btn { width: 100%; justify-content: center; }
  .card-left  { text-align: center; }
  .card-left .card-icon { margin: 0 auto 18px; }
  .split-list { margin-bottom: 20px; }
  .split-list li { justify-content: flex-start; text-align: left; }

  /* Stats — horizontal scroll on mobile */
  .stats { grid-template-columns: repeat(3, 1fr); overflow-x: auto; }
  .stat-item { min-width: 120px; padding: 20px 14px; }
  .stat-item strong { font-size: 26px; }

  /* Grid */
  .grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }

  /* Cards */
  .card { padding: 20px 16px; }

  /* Tag grid */
  .tag { padding: 10px 16px; font-size: 13px; }

  /* Contact icon */
  .contact-icon { width: 48px; height: 48px; font-size: 20px; }

  /* Policy */
  .policy-h2 { font-size: 16px; margin-top: 28px; }

  /* Footer */
  footer { flex-direction: column; align-items: center; text-align: center; padding: 28px 20px; }
  .footer-links { justify-content: center; }
}

/* ═══════════════════════════════════════
   RESPONSIVE — 480px
   ═══════════════════════════════════════ */
@media (max-width: 480px) {
  .grid, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: 48px 16px 44px; }
  .hero h1 { letter-spacing: -.8px; }
  .hero h2 { font-size: clamp(20px, 6vw, 28px); }
  .hero p { font-size: 14px; }
  .section { padding: 44px 16px; }
  .section-sub { font-size: 14px; }

  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn,
  .hero-buttons .btn-outline { width: 100%; max-width: 300px; justify-content: center; }

  /* Stats — stack on very small screens */
  .stats { grid-template-columns: 1fr; overflow-x: visible; }
  .stat-item { padding: 18px 16px; }
  .stat-item strong { font-size: 28px; }

  /* Cards */
  .card { padding: 18px 14px; }
  .card-icon { width: 44px; height: 44px; font-size: 18px; }

  /* Split */
  .split { gap: 24px; }
  .split-text h2 { font-size: clamp(20px, 5vw, 26px); }

  /* Tags */
  .tag-grid { gap: 8px; }
  .tag { padding: 9px 14px; font-size: 12.5px; }

  /* Social */
  .social a { width: 42px; height: 42px; font-size: 16px; }

  /* Policy */
  .policy-section { padding: 16px 14px; }
  .policy-h2 { font-size: 15px; }

  /* Footer */
  footer { padding: 22px 16px; }
  .footer-links { gap: 2px; }
  .footer-links a { font-size: 12px; }

  /* Badge */
  .badge { font-size: 11.5px; padding: 5px 12px; }
}