/* ── Variables ─────────────────────────────────────────────────────────── */
:root {
  --q-primary:      #2E86C1;
  --q-primary-dark: #1a5276;
  --q-primary-light:#d6eaf8;
  --q-accent:       #f39c12;
  --q-bg:           #f0f8ff;
  --q-dark:         #1a2533;
  --q-text:         #334155;
  --q-muted:        #64748b;
  --q-border:       #e2e8f0;
  --q-radius:       16px;
  --q-radius-sm:    10px;
}

/* ── Base ──────────────────────────────────────────────────────────────── */
* { box-sizing: border-box; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--q-text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

.fw-900 { font-weight: 900 !important; }

/* ── Brand ─────────────────────────────────────────────────────────────── */
.brand-q {
  color: var(--q-primary);
  font-weight: 900;
}

/* ── Navbar ────────────────────────────────────────────────────────────── */
.qarlo-nav {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--q-border);
  padding: 12px 0;
}
.qarlo-nav .navbar-brand {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--q-dark);
  letter-spacing: -0.5px;
}
.qarlo-nav .nav-link {
  color: var(--q-text);
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  transition: background 0.2s;
}
.qarlo-nav .nav-link:hover { background: var(--q-primary-light); color: var(--q-primary); }

/* ── Buttons ───────────────────────────────────────────────────────────── */
.btn-primary {
  background: var(--q-primary);
  border-color: var(--q-primary);
  font-weight: 700;
  border-radius: var(--q-radius-sm);
}
.btn-primary:hover { background: var(--q-primary-dark); border-color: var(--q-primary-dark); }
.btn-outline-primary { color: var(--q-primary); border-color: var(--q-primary); font-weight: 600; border-radius: var(--q-radius-sm); }
.btn-outline-primary:hover { background: var(--q-primary); border-color: var(--q-primary); }

/* ── Hero ──────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--q-primary-dark) 0%, var(--q-primary) 60%, #5dade2 100%);
  color: #fff;
  padding: 100px 0 80px;
  position: relative;
  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='%23ffffff' fill-opacity='0.04'%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");
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1px;
}
.hero .lead { font-size: 1.15rem; opacity: 0.9; max-width: 520px; }
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}
.hero-mockup {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 32px;
  padding: 32px;
  text-align: center;
  backdrop-filter: blur(10px);
}
.hero-phone-icon { font-size: 8rem; line-height: 1; }
.hero-store-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  border: 1.5px solid rgba(255,255,255,0.4);
  border-radius: 12px;
  padding: 10px 20px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.88rem;
  transition: background 0.2s;
}
.hero-store-btn:hover { background: rgba(255,255,255,0.25); color: #fff; }

/* ── Stats bar ─────────────────────────────────────────────────────────── */
.stats-bar {
  background: var(--q-dark);
  color: #fff;
  padding: 28px 0;
}
.stat-item { text-align: center; }
.stat-number { font-size: 2rem; font-weight: 900; color: var(--q-accent); line-height: 1; }
.stat-label { font-size: 0.82rem; color: rgba(255,255,255,0.6); margin-top: 4px; }

/* ── Section titles ────────────────────────────────────────────────────── */
.section-title { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 900; color: var(--q-dark); letter-spacing: -0.5px; }
.section-sub { font-size: 1.05rem; color: var(--q-muted); }

/* ── How it works ──────────────────────────────────────────────────────── */
.how-section { background: var(--q-bg); padding: 80px 0; }
.step-card {
  background: #fff;
  border-radius: var(--q-radius);
  padding: 32px 28px;
  border: 1.5px solid var(--q-border);
  height: 100%;
  transition: box-shadow 0.2s, transform 0.2s;
}
.step-card:hover { box-shadow: 0 12px 40px rgba(46,134,193,0.12); transform: translateY(-4px); }
.step-number {
  width: 48px; height: 48px;
  background: var(--q-primary);
  color: #fff;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 1.2rem;
  margin-bottom: 16px;
}
.step-icon { font-size: 2.5rem; margin-bottom: 12px; }

/* ── Features ──────────────────────────────────────────────────────────── */
.features-section { padding: 80px 0; }
.feature-card {
  display: flex; gap: 20px; align-items: flex-start;
  background: #fff;
  border: 1.5px solid var(--q-border);
  border-radius: var(--q-radius);
  padding: 28px;
  height: 100%;
  transition: box-shadow 0.2s;
}
.feature-card:hover { box-shadow: 0 8px 32px rgba(46,134,193,0.1); }
.feature-icon {
  width: 52px; height: 52px; flex-shrink: 0;
  background: var(--q-primary-light);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
}

/* ── Marketplace ───────────────────────────────────────────────────────── */
.marketplace-section { background: var(--q-bg); padding: 80px 0; }
.item-card {
  background: #fff;
  border: 1.5px solid var(--q-border);
  border-radius: var(--q-radius);
  padding: 28px 20px;
  text-align: center;
  height: 100%;
  transition: box-shadow 0.2s, transform 0.2s;
  cursor: pointer;
}
.item-card:hover { box-shadow: 0 12px 40px rgba(46,134,193,0.15); transform: translateY(-4px); }
.item-card.locked { opacity: 0.7; }
.item-emoji { font-size: 3rem; margin-bottom: 12px; }
.item-name { font-size: 1rem; font-weight: 800; color: var(--q-dark); margin-bottom: 6px; }
.item-desc { font-size: 0.82rem; color: var(--q-muted); margin-bottom: 16px; line-height: 1.5; }
.item-price {
  display: inline-block;
  background: var(--q-primary-light);
  color: var(--q-primary);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 6px 16px;
  border-radius: 20px;
}
.item-price.locked-price { background: #f1f5f9; color: var(--q-muted); }
.balance-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--q-primary);
  color: #fff;
  border-radius: 50px;
  padding: 10px 22px;
  font-weight: 800;
  font-size: 1.1rem;
}
.category-chip {
  display: inline-block;
  padding: 6px 16px;
  border: 1.5px solid var(--q-border);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--q-muted);
  cursor: pointer;
  transition: all 0.15s;
  background: #fff;
}
.category-chip.active, .category-chip:hover {
  background: var(--q-primary); color: #fff; border-color: var(--q-primary);
}
.stock-badge {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  margin-bottom: 8px;
}

/* ── Auth page ─────────────────────────────────────────────────────────── */
.auth-card {
  max-width: 440px;
  margin: 60px auto;
  background: #fff;
  border: 1.5px solid var(--q-border);
  border-radius: 24px;
  padding: 40px 36px;
  box-shadow: 0 8px 40px rgba(46,134,193,0.08);
}
.auth-logo { font-size: 2rem; font-weight: 900; color: var(--q-dark); margin-bottom: 6px; }
.otp-input {
  letter-spacing: 12px;
  font-size: 1.6rem;
  font-weight: 800;
  text-align: center;
}
.form-control:focus { border-color: var(--q-primary); box-shadow: 0 0 0 3px var(--q-primary-light); }

/* ── Profile ───────────────────────────────────────────────────────────── */
.profile-card {
  background: linear-gradient(135deg, var(--q-primary) 0%, var(--q-primary-dark) 100%);
  color: #fff;
  border-radius: 24px;
  padding: 36px;
}
.referral-code-box {
  background: rgba(255,255,255,0.15);
  border: 1.5px dashed rgba(255,255,255,0.5);
  border-radius: 14px;
  padding: 16px 24px;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 4px;
  text-align: center;
  cursor: pointer;
}
.qark-balance { font-size: 3rem; font-weight: 900; line-height: 1; }

/* ── Purchase history ──────────────────────────────────────────────────── */
.purchase-row {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--q-border);
}
.purchase-row:last-child { border-bottom: none; }
.purchase-emoji-bg {
  width: 48px; height: 48px; flex-shrink: 0;
  background: var(--q-primary-light);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
}

/* ── Admin ─────────────────────────────────────────────────────────────── */
.admin-sidebar {
  width: 240px;
  min-height: 100vh;
  background: var(--q-dark);
  color: #fff;
  padding: 24px 0;
  flex-shrink: 0;
}
.admin-sidebar .brand { padding: 0 24px 24px; font-size: 1.4rem; font-weight: 900; border-bottom: 1px solid rgba(255,255,255,0.1); }
.admin-nav-link {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 24px;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.15s;
}
.admin-nav-link:hover, .admin-nav-link.active { background: rgba(255,255,255,0.1); color: #fff; }
.admin-content { flex: 1; padding: 32px; background: #f8fafc; min-height: 100vh; }
.stat-card {
  background: #fff;
  border: 1px solid var(--q-border);
  border-radius: var(--q-radius);
  padding: 24px;
}
.stat-card .number { font-size: 2.2rem; font-weight: 900; color: var(--q-primary); line-height: 1; }
.stat-card .label { font-size: 0.82rem; color: var(--q-muted); margin-top: 6px; }

/* ── Qarks symbol ──────────────────────────────────────────────────────── */
.qarks { color: var(--q-primary); font-weight: 800; }

/* ── Alert / Toast ─────────────────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; }

/* ── Footer ────────────────────────────────────────────────────────────── */
.qarlo-footer {
  background: var(--q-dark);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 30px;
}
.qarlo-footer a { transition: color 0.15s; }
.qarlo-footer a:hover { color: var(--q-accent) !important; }

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero { padding: 60px 0 50px; }
  .hero-mockup { margin-top: 40px; }
  .auth-card { margin: 30px 16px; padding: 28px 20px; }
  .admin-sidebar { width: 200px; }
}