/* =====================================================
   style.css
   Tema visual: Biru (dominan) - Putih - Emas (aksen batik)
   Font: Poppins
   ===================================================== */

:root {
  --biru-utama: #1e3a8a;
  --biru-terang: #2563eb;
  --biru-gelap: #14213d;
  --emas: #c9a227;
  --emas-terang: #e8c766;
  --putih: #ffffff;
  --abu-latar: #f5f7fb;
  --teks-gelap: #1f2937;
}

* {
  font-family: "Poppins", sans-serif;
}

body {
  background-color: var(--abu-latar);
  color: var(--teks-gelap);
}

/* ---------------- NAVBAR ---------------- */
.navbar-batik {
  background: linear-gradient(90deg, var(--biru-gelap) 0%, var(--biru-utama) 100%);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.navbar-batik .navbar-brand {
  font-weight: 700;
  color: var(--emas-terang) !important;
  letter-spacing: 0.5px;
}

.navbar-batik .nav-link {
  color: #e5e7eb !important;
  font-weight: 500;
  transition: color 0.2s ease;
}

.navbar-batik .nav-link:hover,
.navbar-batik .nav-link.active {
  color: var(--emas-terang) !important;
}

/* ---------------- HERO SECTION ---------------- */
.hero-section {
  background: linear-gradient(135deg, rgba(20, 33, 61, 0.85) 0%, rgba(30, 58, 138, 0.85) 100%), url('../img/hero-bg.jpg') center/cover no-repeat;
  color: var(--putih);
  padding: 90px 0 70px 0;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 20%, rgba(201, 162, 39, 0.15) 0, transparent 35%),
                    radial-gradient(circle at 80% 80%, rgba(201, 162, 39, 0.12) 0, transparent 40%);
  pointer-events: none;
}

.hero-section h1 {
  font-weight: 700;
}

.hero-badge {
  display: inline-block;
  background: rgba(201, 162, 39, 0.18);
  border: 1px solid var(--emas);
  color: var(--emas-terang);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* ---------------- CARDS ---------------- */
.card-batik {
  border: none;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(20, 33, 61, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  background: var(--putih);
  overflow: hidden;
}

.card-batik:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(20, 33, 61, 0.15);
}

.card-batik .icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--biru-utama), var(--biru-terang));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--emas-terang);
  font-size: 1.5rem;
  margin-bottom: 14px;
}

.gold-accent {
  color: var(--emas);
}

.section-title {
  font-weight: 700;
  color: var(--biru-gelap);
  position: relative;
  padding-bottom: 10px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 60px;
  height: 4px;
  background: var(--emas);
  border-radius: 2px;
}

/* ---------------- BUTTONS ---------------- */
.btn-batik-primary {
  background: linear-gradient(90deg, var(--biru-utama), var(--biru-terang));
  color: var(--putih);
  border: none;
  font-weight: 600;
  border-radius: 10px;
  padding: 10px 26px;
  transition: all 0.2s ease;
}

.btn-batik-primary:hover {
  background: linear-gradient(90deg, var(--biru-terang), var(--biru-utama));
  color: var(--emas-terang);
  transform: translateY(-2px);
}

.btn-batik-gold {
  background: linear-gradient(90deg, var(--emas), var(--emas-terang));
  color: var(--biru-gelap);
  border: none;
  font-weight: 700;
  border-radius: 10px;
  padding: 10px 26px;
  transition: all 0.2s ease;
}

.btn-batik-gold:hover {
  filter: brightness(1.05);
  transform: translateY(-2px);
  color: var(--biru-gelap);
}

/* ---------------- TABLES ---------------- */
.table-batik thead {
  background: var(--biru-utama);
  color: var(--putih);
}

.table-batik tbody tr:hover {
  background-color: #eef2ff;
}

/* ---------------- BADGES ---------------- */
.badge-batik {
  background: var(--emas);
  color: var(--biru-gelap);
  font-weight: 600;
}

/* ---------------- LOADING ---------------- */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 33, 61, 0.85);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 2000;
  color: var(--putih);
}

.loading-overlay.active {
  display: flex;
}

.spinner-batik {
  width: 64px;
  height: 64px;
  border: 6px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--emas);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------------- FADE-IN ANIMATION ---------------- */
.fade-in-up {
  animation: fadeInUp 0.6s ease both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------------- FOOTER ---------------- */
.footer-batik {
  background: linear-gradient(135deg, rgba(20, 33, 61, 0.95) 0%, rgba(30, 58, 138, 0.9) 100%), url('../img/hero-bg.jpg') center/cover no-repeat;
  color: #cbd5e1;
  padding: 36px 0;
  margin-top: 60px;
}

.footer-batik a {
  color: var(--emas-terang);
  text-decoration: none;
}

.footer-batik a:hover {
  text-decoration: underline;
}

/* ---------------- MISC ---------------- */
.result-img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  background: #fff;
}

.progress-log {
  background: #0f172a;
  color: #a3e635;
  font-family: "Courier New", monospace;
  font-size: 0.82rem;
  padding: 16px;
  border-radius: 10px;
  height: 380px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.dataset-thumb {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 10px 10px 0 0;
}

.prob-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 2px;
}

.model-winner {
  border: 2px solid var(--emas);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.15);
}