:root {
  --app-bg-a: #f8fbff;
  --app-bg-b: #eef4ff;
  --app-bg-c: #f6fff9;
  --ink-900: #0f172a;
  --ink-700: #334155;
  --line-200: #dbe5f3;
  --brand-1: #0f766e;
  --brand-2: #1d4ed8;
  --good-bg: #dcfce7;
  --good-fg: #14532d;
  --bad-bg: #fee2e2;
  --bad-fg: #991b1b;
}

* {
  box-sizing: border-box;
}

body.app-body {
  margin: 0;
  color: var(--ink-900);
  background: linear-gradient(120deg, var(--app-bg-a), var(--app-bg-b), var(--app-bg-c));
  background-size: 180% 180%;
  animation: bg-shift 16s ease infinite;
  min-height: 100vh;
}

@keyframes bg-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.app-shell {
  position: relative;
  overflow: hidden;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(6px);
  opacity: 0.35;
  pointer-events: none;
  animation: float-orb 8s ease-in-out infinite;
}

.bg-orb.orb-a {
  width: 220px;
  height: 220px;
  background: #7dd3fc;
  top: -60px;
  right: -60px;
}

.bg-orb.orb-b {
  width: 180px;
  height: 180px;
  background: #86efac;
  bottom: -40px;
  left: -40px;
  animation-delay: 1s;
}

@keyframes float-orb {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-10px) translateX(8px); }
}

.top-nav {
  backdrop-filter: blur(6px);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(203, 213, 225, 0.8);
  border-radius: 14px;
}

.glass-card {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(203, 213, 225, 0.85);
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(8px);
}

.section-title {
  font-size: clamp(1.4rem, 1.1rem + 1vw, 2rem);
  font-weight: 800;
  letter-spacing: 0.01em;
}

.hero-title {
  font-size: clamp(2rem, 1.4rem + 2vw, 3.2rem);
  font-weight: 800;
  line-height: 1.08;
}

.hero-sub {
  color: var(--ink-700);
  font-size: clamp(1rem, 0.95rem + 0.4vw, 1.15rem);
}

.btn-brand {
  background: linear-gradient(90deg, var(--brand-1), var(--brand-2));
  border: 0;
  color: #fff;
  border-radius: 12px;
  padding: 0.6rem 1rem;
  font-weight: 700;
}

.btn-brand:hover {
  color: #fff;
  filter: brightness(1.05);
}

.btn-ghost-brand {
  border: 1px solid #94a3b8;
  border-radius: 12px;
  font-weight: 700;
}

.badge-soft {
  display: inline-block;
  border-radius: 999px;
  background: #dbeafe;
  color: #1e40af;
  padding: 0.3rem 0.6rem;
  font-size: 0.78rem;
}

.alert-soft-ok {
  background: var(--good-bg);
  color: var(--good-fg);
  border: 1px solid #86efac;
}

.alert-soft-bad {
  background: var(--bad-bg);
  color: var(--bad-fg);
  border: 1px solid #fecaca;
}

.card-hover-rise {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-hover-rise:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.12);
}

.table-modern th,
.table-modern td {
  white-space: nowrap;
  vertical-align: middle;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
}

.preview-item {
  border: 1px solid var(--line-200);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}

.preview-item img {
  width: 100%;
  display: block;
}

.preview-caption {
  font-size: 0.75rem;
  color: #475569;
  padding: 0.35rem 0.5rem;
}

.fade-up {
  animation: fade-up 0.6s ease both;
}

.fade-up.delay-1 { animation-delay: 0.07s; }
.fade-up.delay-2 { animation-delay: 0.14s; }
.fade-up.delay-3 { animation-delay: 0.21s; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}