/* =========================================================
   YVT APP • Global Styles
   - Dark gradient background
   - Fixed topbar with blur
   - Auth card, dashboard grid
   - Stat card styling
   ========================================================= */

/* ===== Reset & Base ===== */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  color: #101418;
  background: #0f172a;
}
a { color: inherit; text-decoration: none; }
code { background: #f3f4f6; padding: .1rem .35rem; border-radius: .35rem; }

/* ===== Background Layers ===== */
.bg {
  background:
    radial-gradient(1200px 600px at 10% -20%, #1d2a5b 0%, transparent 50%),
    radial-gradient(1200px 600px at 110% 120%, #1e293b 0%, transparent 40%),
    linear-gradient(180deg, #0f172a 0%, #0b1224 100%);
}

/* ===== Layout Container ===== */
.container {
  max-width: 1100px;
  margin: 88px auto 48px; /* turun karena topbar fixed */
  padding: 0 20px;
}

/* =========================================================
   Topbar / Navbar
   ========================================================= */
.topbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 9999;
  backdrop-filter: blur(8px);
}
.topbar-inner {
  height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(9,14,30,.85); /* solid agar kontras tinggi */
}
.brand {
  font-weight: 700; letter-spacing: .2px; color: #f8fafc;
}

.nav { display: flex; gap: 18px; }
.nav-link {
  padding: 8px 12px; border-radius: 10px;
  color: #e5e7eb;            /* penting: terang di topbar gelap */
  opacity: .95;
  font-weight: 500;
}
.nav-link:visited { color: #e5e7eb; }
.nav-link:hover { background: rgba(255,255,255,.10); color: #ffffff; }
.nav-link.disabled { opacity: .4; pointer-events: none; }

.nav-link.active,
.nav-link[aria-current="page"] {
  background: rgba(255,255,255,.14);
  color: #fff;
}

.right { display: flex; gap: 10px; align-items: center; }
.user { color: #cbd5e1; font-size: .95rem; }
.btn { display: inline-block; cursor: pointer; border: none; font-weight: 600; }
.btn.btn-sm {
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 10px;
  color: #e2e8f0;
}
.btn.btn-sm:hover { background: rgba(255,255,255,.08); }

/* =========================================================
   Auth (Login)
   ========================================================= */
.auth-wrap {
  min-height: 100dvh;
  display: grid; place-items: center;
  padding: 24px;
}
.card {
  width: 100%; max-width: 460px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  box-shadow: 0 10px 40px rgba(0,0,0,.35);
  padding: 28px 24px 24px;
  color: #f1f5f9;
}
.app-title { margin: 0 0 8px; font-size: 20px; color: #e2e8f0; font-weight: 700; }
.card-title { margin: 0 0 16px; font-size: 18px; color: #f8fafc; font-weight: 600; }
.alert {
  margin-bottom: 14px; padding: 10px 12px; border-radius: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(244,63,94,.5);
  color: #fecdd3;
}
.form { display: grid; gap: 14px; }
.form-group { display: grid; gap: 8px; }
label { font-size: .92rem; color: #cbd5e1; }
input[type="text"], input[type="password"] {
  width: 100%; padding: 12px 14px; border-radius: 12px; outline: none;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: #f8fafc;
  transition: border .2s, box-shadow .2s;
}
input::placeholder { color: #9ca3af; }
input:focus { border-color: #60a5fa; box-shadow: 0 0 0 3px rgba(96,165,250,.25); }
.btn-primary {
  background: linear-gradient(180deg, #5b9df7 0%, #3b82f6 100%);
  color: #fff; padding: 12px 14px; border-radius: 12px;
  box-shadow: 0 10px 24px rgba(59,130,246,.35);
}
.btn-primary:hover { filter: brightness(1.05); }
.w-100 { width: 100%; }
.muted { color: #94a3b8; }
.tips { margin-top: 12px; font-size: .9rem; }

/* =========================================================
   Dashboard
   ========================================================= */
.hero { margin-bottom: 18px; }
.h1 { margin: 0 0 6px; color: #f8fafc; font-size: 28px; font-weight: 700; }

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(12, 1fr);
}
.grid .card { grid-column: span 12; }
@media (min-width: 900px) {
  .grid .card:nth-child(1) { grid-column: span 6; }
  .grid .card:nth-child(2) { grid-column: span 6; }
}

.list { display: grid; gap: 8px; }
.list-item {
  display: block; padding: 12px 14px; border-radius: 12px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  color: #e5e7eb;
}
.list-item:hover { background: rgba(255,255,255,.08); }
.list-item.disabled { opacity: .5; pointer-events: none; }

/* ===== Stat Card ===== */
.stat-card {
  display: grid;
  grid-template-rows: auto 1fr;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  padding: 20px;
  color: #f1f5f9;
}
.stat-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 6px;
}
.stat-label {
  color: #cbd5e1; font-size: .95rem; letter-spacing: .2px;
}
.stat-body { display: grid; gap: 6px; }
.stat-value {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 800; line-height: 1; color: #f8fafc;
  text-shadow: 0 4px 28px rgba(59,130,246,.3);
}
.stat-mini { font-size: .9rem; color: #94a3b8; }

/* =========================================================
   Utilities
   ========================================================= */
.hidden { display: none !important; }
.disabled { pointer-events: none; opacity: .6; }
.text-center { text-align: center; }