/* Premium SaaS Light Theme & Mobile First System for iqtestdantpa.web.id */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;600;700&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Bright, Crisp Light Palette */
  --bg-primary: #f8fafc;      /* Soft clean slate */
  --bg-secondary: #ffffff;    /* Pure white */
  --bg-subtle: #f1f5f9;       /* Light gray border / section */
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: #2563eb;
  
  --accent-blue: #2563eb;
  --accent-indigo: #4f46e5;
  --accent-purple: #7c3aed;
  --accent-emerald: #059669;
  --accent-amber: #d97706;
  --accent-rose: #e11d48;
  
  /* High Contrast Deep Slate Typography */
  --text-main: #0f172a;       /* Very deep slate - maximum readability */
  --text-muted: #334155;      /* Rich medium slate */
  --text-dim: #64748b;        /* Subtle slate for captions */
  --text-inverse: #ffffff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Subtle clean ambient background */
.glow-mesh {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  background: 
    radial-gradient(circle at 10% 10%, rgba(37, 99, 235, 0.05) 0%, transparent 45%),
    radial-gradient(circle at 90% 15%, rgba(79, 70, 229, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 50% 90%, rgba(5, 150, 105, 0.03) 0%, transparent 50%);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Premium Card Component */
.glass-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.02);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-panel:hover {
  border-color: var(--border-medium);
  box-shadow: 0 10px 25px -4px rgba(15, 23, 42, 0.08), 0 4px 10px -2px rgba(15, 23, 42, 0.03);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff !important;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.85rem 1.75rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.35);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  min-height: 48px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.45);
  filter: brightness(1.05);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: #ffffff;
  color: var(--text-main) !important;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.75rem;
  border-radius: 12px;
  border: 1.5px solid var(--border-subtle);
  box-shadow: 0 2px 4px rgba(15, 23, 42, 0.03);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  min-height: 48px;
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: var(--border-medium);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(15, 23, 42, 0.06);
}

/* Badge Component */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  font-size: 0.825rem;
  font-weight: 700;
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
  background: #f1f5f9;
  color: var(--text-muted);
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.85rem 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 3px 8px rgba(37, 99, 235, 0.3);
}

/* Exam Option Selection Buttons */
.option-btn {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  background: #ffffff;
  border: 2px solid var(--border-subtle);
  border-radius: 14px;
  color: var(--text-main);
  text-align: left;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  margin-bottom: 0.85rem;
  font-size: 1.05rem;
  font-weight: 500;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.02);
}

.option-btn:hover {
  background: #f0f7ff;
  border-color: #93c5fd;
  transform: translateX(4px);
}

.option-btn.selected {
  background: #eff6ff;
  border-color: #2563eb;
  color: #1e3a8a;
  box-shadow: 0 0 0 1px #2563eb, 0 4px 12px rgba(37, 99, 235, 0.15);
}

.option-key {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: 8px;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  border: 1px solid var(--border-subtle);
  transition: all 0.2s;
}

.option-btn.selected .option-key {
  background: #2563eb;
  color: #ffffff;
  border-color: #2563eb;
}

/* Exam Question Palette Grid */
.palette-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.palette-item {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border: 1.5px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-mono);
}

.palette-item:hover {
  border-color: #94a3b8;
  background: #f8fafc;
}

.palette-item.active {
  border-color: #2563eb;
  box-shadow: 0 0 0 2px #2563eb;
  color: #1e40af;
  background: #eff6ff;
}

.palette-item.answered {
  background: #ecfdf5;
  border-color: #10b981;
  color: #065f46;
}

.palette-item.flagged {
  background: #fffbeb;
  border-color: #f59e0b;
  color: #92400e;
}

/* Modal Window */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  width: 100%;
  max-width: 480px;
  padding: 2rem;
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.open .modal-content {
  transform: scale(1);
}

/* Form Inputs */
.form-input {
  width: 100%;
  padding: 0.85rem 1.1rem;
  background: #f8fafc;
  border: 1.5px solid var(--border-subtle);
  border-radius: 10px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 1rem;
  outline: none;
  transition: all 0.2s;
  margin-top: 0.4rem;
}

.form-input:focus {
  border-color: var(--accent-blue);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* =========================================================
   RESPONSIVE GRIDS FOR MOBILE PERFECTION
   ========================================================= */

/* Hero Grid */
.responsive-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

/* Bento Features Grid */
.responsive-bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* Packages Grid */
.responsive-packages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* Stats Grid in Hero */
.responsive-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* Two Column Layout (Results, Radar, etc.) */
.responsive-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

/* Scores Grid in Result Page */
.responsive-scores-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

/* Recommendations Grid */
.responsive-recommendations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

/* Media Query: Tablets & Mobile (< 900px) */
@media (max-width: 900px) {
  .responsive-hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .responsive-bento-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .responsive-packages-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .responsive-two-col {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .responsive-scores-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .responsive-recommendations-grid {
    grid-template-columns: 1fr;
  }

  .desktop-nav {
    display: none !important;
  }
}

/* Media Query: Small Mobile (< 580px) */
@media (max-width: 580px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 1rem;
  }

  .responsive-bento-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .responsive-scores-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .responsive-stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    text-align: center;
  }

  .option-btn {
    padding: 1rem;
    font-size: 1rem;
  }

  .btn-primary, .btn-secondary {
    width: 100%;
    padding: 0.85rem 1.25rem;
  }
}