/* ==========================================================================
   FAJAR NUGRAHA — UI COMPONENTS
   Lokasi: css/components.css
   Fungsi: Grid, Kartu, Tombol Premium, Form, Elemen SPA, & Hero Image Stack
   ========================================================================== */

/* --- 1. FIXED GRID SYSTEM (Anti-Hancur) --- */
/* Kunci: !important memastikan struktur dasar tidak diubah oleh script dinamis */
.grid-4 {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 2rem;
}

.grid-3 {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 2rem;
}

.grid-2 {
  display: grid !important;
  grid-template-columns: repeat(2, 1fr) !important;
  gap: 2.5rem;
}

/* Responsivitas Grid */
@media (max-width: 1024px) {
  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 768px) {
  /* Turun ke 1 kolom hanya di layar HP */
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr !important;
  }
}

/* --- 2. SIGNATURE CARD SYSTEM --- */
.card-form {
  background-color: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.card {
  background-color: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-12px);
  box-shadow: var(--shadow-lg);
}

/* Ikon Interaktif: Animasi Miring & Membesar */
.card-icon {
  width: 60px;
  height: 60px;
  background-color: var(--accent-soft);
  color: var(--accent);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.card:hover .card-icon {
  background-color: var(--accent);
  color: #ffffff;
  /* !important memastikan animasi khas ini selalu jalan saat di-hover */
  transform: rotate(-15deg) scale(1.2) !important;
}

.card h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- 3. PREMIUM BUTTON SYSTEM --- */
.btn-primary,
.btn-secondary,
.btn-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0.9rem 2.2rem;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-decoration: none !important;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

/* Tombol Dark (Solusi teks hilang / kontras rendah) */
.btn-dark {
  background-color: #1e293b;
  color: #ffffff !important;
}

.btn-dark:hover {
  background-color: #0f172a;
  color: var(--text-white) !important;
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Tombol Primary (Menggunakan variabel warna utama) */
.btn-primary {
  background-color: var(--primary);
  color: #ffffff !important;
}
.btn-primary:hover {
  background-color: var(--primary-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

/* Tombol Secondary (Garis Pinggir) */
.btn-secondary {
  background-color: transparent;
  color: var(--primary) !important;
  border-color: var(--primary);
}
.btn-secondary:hover {
  background-color: var(--primary);
  color: #ffffff !important;
  transform: translateY(-3px);
}

/* --- 4. FORM ELEMENTS (Persiapan untuk Kontak) --- */
.form-group {
  margin-bottom: 1.5rem;
}
.form-label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
  color: var(--text-main);
}
.form-control {
  width: 100%;
  padding: 0.9rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

/* --- 5. SPA TOOLS (Progress Bar & Loader) --- */
.progress-bar-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  z-index: var(--z-progress);
  pointer-events: none;
  background: transparent;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background-color: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  transition:
    width 0.3s ease,
    opacity 0.3s ease;
}

.loader-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  width: 100%;
}

.spinner {
  width: 45px;
  height: 45px;
  border: 4px solid var(--border);
  border-top: 4px solid var(--accent);
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

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

/* --- 6. ANIMASI INTERAKTIF (Scroll Reveal & Ripple) --- */
.reveal-init {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}

.reveal-active {
  opacity: 1;
  transform: translateY(0);
}

.ripple-effect {
  position: absolute;
  background: rgba(255, 255, 255, 0.4);
  width: 100px;
  height: 100px;
  border-radius: 50%;
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
  pointer-events: none;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ==========================================================================
   --- 7. HERO IMAGE STACK COMPONENT ---
   ========================================================================== */
.hero-image .container-relative {
  position: relative;
  display: inline-block;
  width: 100%;
  max-width: 360px; /* Ukuran dioptimalkan agar proporsional */
  aspect-ratio: 4/5;
  margin-top: 15px;
}

.hero-image .stack-card {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
  border: 4px solid var(--bg-light, white); /* Frame kartu yang lebih tegas, menyesuaikan tema */
  background: var(--bg-light, white);

  /* Durasi total 9 detik (3 detik per gambar) */
  animation: aestheticCardSwap 9s infinite ease-in-out;
  will-change: transform, z-index;
}

.hero-image .slide-1 {
  animation-delay: 0s;
}
.hero-image .slide-2 {
  animation-delay: -3s;
}
.hero-image .slide-3 {
  animation-delay: -6s;
}

/* CHOREOGRAPHY ANIMASI YANG LEBIH RAPAT */
@keyframes aestheticCardSwap {
  /* 1. POSISI PALING DEPAN (Tegak lurus, ukuran penuh) */
  0%,
  25% {
    z-index: 3;
    transform: translateX(0) translateY(0) scale(1) rotate(0deg);
  }

  /* 2. SWIPE KANAN (Hanya bergeser secukupnya untuk keluar dari tumpukan depan) */
  30% {
    z-index: 3;
    transform: translateX(65%) translateY(5px) scale(0.95) rotate(6deg);
  }

  /* 3. MENYELIP KE PALING BELAKANG (Mengecil & agak miring ke kiri) */
  35%,
  60% {
    z-index: 1;
    transform: translateX(-10px) translateY(15px) scale(0.85) rotate(-4deg);
  }

  /* 4. MAJU KE POSISI TENGAH (Sedikit membesar & miring ke kanan) */
  65%,
  95% {
    z-index: 2;
    transform: translateX(5px) translateY(8px) scale(0.92) rotate(2deg);
  }

  /* KEMBALI KE DEPAN */
  100% {
    z-index: 3;
    transform: translateX(0) translateY(0) scale(1) rotate(0deg);
  }
}