@import url('https://fonts.googleapis.com/css2?family=Prompt:wght@300;400;500;600;700&family=Sarabun:wght@300;400;500;600&display=swap');

:root {
  --primary: #1a3c6e;
  --primary-light: #2557a7;
  --primary-glow: rgba(37,87,167,0.25);
  --accent: #f0a500;
  --accent-light: #ffc93c;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;

  --bg-dark: #0a0f1e;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.10);
  --border-accent: rgba(240,165,0,0.4);

  --text-primary: #f0f4ff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --glass: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-accent: 0 4px 20px rgba(240,165,0,0.2);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Prompt', 'Sarabun', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(37,87,167,0.18) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(240,165,0,0.08) 0%, transparent 60%),
    linear-gradient(135deg, #050a14 0%, #0a0f1e 50%, #0d1428 100%);
}

/* ── Layout ── */
.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.container-sm { max-width: 860px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Navbar ── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,15,30,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; }
.navbar-brand { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; }
.navbar-logo {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 700; color: #fff;
}
.navbar-title { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); line-height: 1.2; }
.navbar-subtitle { font-size: 0.72rem; color: var(--text-secondary); font-weight: 400; }
.navbar-nav { display: flex; align-items: center; gap: 0.5rem; }
.nav-link {
  color: var(--text-secondary); text-decoration: none; padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm); font-size: 0.88rem; transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--accent); background: rgba(240,165,0,0.1); }

/* ── Cards ── */
.card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  backdrop-filter: blur(12px);
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 100%);
  pointer-events: none;
}
.card:hover { border-color: var(--border-accent); transform: translateY(-2px); box-shadow: var(--shadow-accent); }
.card-accent { border-top: 3px solid var(--accent); }

/* ── Stat Cards ── */
.stat-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 1.5rem;
  display: flex; align-items: flex-start; gap: 1rem;
  transition: var(--transition);
}
.stat-card:hover { border-color: var(--border-accent); transform: translateY(-3px); box-shadow: var(--shadow-accent); }
.stat-icon {
  width: 52px; height: 52px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; flex-shrink: 0;
}
.stat-icon.blue  { background: rgba(37,87,167,0.2); }
.stat-icon.gold  { background: rgba(240,165,0,0.15); }
.stat-icon.green { background: rgba(34,197,94,0.15); }
.stat-icon.red   { background: rgba(239,68,68,0.15); }
.stat-value { font-size: 2rem; font-weight: 700; line-height: 1; color: var(--text-primary); }
.stat-label { font-size: 0.82rem; color: var(--text-secondary); margin-top: 0.25rem; }
.stat-change { font-size: 0.78rem; margin-top: 0.4rem; }
.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.65rem 1.4rem; border-radius: 10px;
  font-family: inherit; font-size: 0.9rem; font-weight: 500;
  border: none; cursor: pointer; text-decoration: none;
  transition: var(--transition); white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff; box-shadow: 0 4px 15px var(--primary-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--primary-glow); filter: brightness(1.1); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  color: #0a0f1e; box-shadow: 0 4px 15px rgba(240,165,0,0.25);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(240,165,0,0.35); }
.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--text-primary); border-color: var(--border-accent); background: var(--glass); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger  { background: var(--danger);  color: #fff; }
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.82rem; }
.btn-lg { padding: 0.85rem 2rem; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

/* ── Forms ── */
.form-group { margin-bottom: 1.2rem; }
.form-label { display: block; font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 0.45rem; font-weight: 500; }
.form-label .required { color: var(--danger); margin-left: 3px; }
.form-control {
  width: 100%; padding: 0.72rem 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit; font-size: 0.9rem;
  transition: var(--transition); outline: none;
}
.form-control:focus { border-color: var(--primary-light); background: rgba(255,255,255,0.08); box-shadow: 0 0 0 3px var(--primary-glow); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control option { background: #1a2540; color: var(--text-primary); }
textarea.form-control { resize: vertical; min-height: 100px; }

/* ── Radio/Likert Scale ── */
.likert-group { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.likert-option { display: none; }
.likert-label {
  display: flex; flex-direction: column; align-items: center; gap: 0.2rem;
  padding: 0.6rem 1rem; border-radius: 8px;
  border: 1px solid var(--border); cursor: pointer;
  transition: var(--transition); min-width: 52px; font-size: 0.82rem;
}
.likert-option:checked + .likert-label {
  border-color: var(--accent); background: rgba(240,165,0,0.12);
  color: var(--accent);
}
.likert-label:hover { border-color: var(--primary-light); background: var(--bg-card-hover); }
.likert-num { font-size: 1.1rem; font-weight: 700; }

/* ── Radio Cards ── */
.radio-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px,1fr)); gap: 0.75rem; }
.radio-card-input { display: none; }
.radio-card-label {
  display: flex; flex-direction: column; align-items: center;
  gap: 0.5rem; padding: 1rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); cursor: pointer;
  transition: var(--transition); text-align: center; font-size: 0.85rem;
}
.radio-card-label .icon { font-size: 1.6rem; }
.radio-card-input:checked + .radio-card-label {
  border-color: var(--accent); background: rgba(240,165,0,0.1); color: var(--accent);
}
.radio-card-label:hover { border-color: var(--primary-light); background: var(--bg-card); }

/* ── Progress Steps ── */
.progress-steps { display: flex; align-items: center; gap: 0; margin-bottom: 2rem; }
.step-item { display: flex; flex-direction: column; align-items: center; gap: 0.4rem; flex: 1; position: relative; }
.step-item::before {
  content: ''; position: absolute; top: 18px; left: calc(50% + 18px);
  width: calc(100% - 36px); height: 2px; background: var(--border);
}
.step-item:last-child::before { display: none; }
.step-item.done::before { background: var(--accent); }
.step-circle {
  width: 36px; height: 36px; border-radius: 50%;
  border: 2px solid var(--border); background: var(--bg-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem; font-weight: 600; position: relative; z-index: 1;
  transition: var(--transition);
}
.step-item.active .step-circle { border-color: var(--accent); color: var(--accent); }
.step-item.done .step-circle { border-color: var(--accent); background: var(--accent); color: #0a0f1e; }
.step-label { font-size: 0.72rem; color: var(--text-muted); text-align: center; }
.step-item.active .step-label { color: var(--accent); }
.step-item.done .step-label { color: var(--text-secondary); }

/* ── Tables ── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; }
thead { background: rgba(255,255,255,0.04); }
th { padding: 0.9rem 1rem; text-align: left; font-size: 0.82rem; color: var(--text-secondary); font-weight: 500; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 0.85rem 1rem; font-size: 0.88rem; color: var(--text-primary); border-bottom: 1px solid rgba(255,255,255,0.04); }
tbody tr:hover { background: var(--bg-card-hover); }
tbody tr:last-child td { border-bottom: none; }

/* ── Badges ── */
.badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.25rem 0.65rem; border-radius: 20px;
  font-size: 0.76rem; font-weight: 500;
}
.badge-success { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger  { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-info    { background: rgba(59,130,246,0.15); color: var(--info); }
.badge-accent  { background: rgba(240,165,0,0.15); color: var(--accent); }
.badge-muted   { background: rgba(100,116,139,0.2); color: var(--text-secondary); }

/* ── Section Headers ── */
.section-header { margin-bottom: 1.75rem; }
.section-title { font-size: 1.35rem; font-weight: 700; color: var(--text-primary); }
.section-subtitle { font-size: 0.88rem; color: var(--text-secondary); margin-top: 0.3rem; }
.section-divider { height: 2px; background: linear-gradient(90deg, var(--accent) 0%, transparent 100%); width: 60px; margin: 0.6rem 0; border-radius: 2px; }

/* ── QA Badge ── */
.qa-badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.3rem 0.8rem; border-radius: 20px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.5px;
  border: 1px solid;
}
.qa-che  { color: #60a5fa; border-color: rgba(96,165,250,0.3); background: rgba(96,165,250,0.08); }
.qa-edpex { color: #a78bfa; border-color: rgba(167,139,250,0.3); background: rgba(167,139,250,0.08); }
.qa-aun  { color: #34d399; border-color: rgba(52,211,153,0.3); background: rgba(52,211,153,0.08); }

/* ── Hero ── */
.hero {
  padding: 5rem 0 3.5rem;
  text-align: center; position: relative;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.4rem 1rem; border-radius: 20px;
  background: rgba(240,165,0,0.12); border: 1px solid var(--border-accent);
  font-size: 0.82rem; color: var(--accent); margin-bottom: 1.5rem;
}
.hero-title { font-size: clamp(1.8rem, 5vw, 3rem); font-weight: 700; line-height: 1.2; margin-bottom: 1rem; }
.hero-title span { background: linear-gradient(135deg, var(--accent-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1rem; color: var(--text-secondary); max-width: 580px; margin: 0 auto 2rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── Grid ── */
.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); }

/* ── Alerts ── */
.alert { padding: 1rem 1.25rem; border-radius: var(--radius-sm); border-left: 4px solid; margin-bottom: 1rem; }
.alert-success { background: rgba(34,197,94,0.1); border-color: var(--success); color: #86efac; }
.alert-danger   { background: rgba(239,68,68,0.1);  border-color: var(--danger);  color: #fca5a5; }
.alert-warning  { background: rgba(245,158,11,0.1); border-color: var(--warning); color: #fcd34d; }
.alert-info     { background: rgba(59,130,246,0.1); border-color: var(--info);    color: #93c5fd; }

/* ── Survey Form Specific ── */
.survey-part {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 2rem; margin-bottom: 1.5rem;
}
.survey-part-header {
  display: flex; align-items: center; gap: 0.75rem;
  padding-bottom: 1.25rem; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem;
}
.part-num {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.part-title { font-size: 1.05rem; font-weight: 600; }
.part-subtitle { font-size: 0.82rem; color: var(--text-secondary); }

/* ── Chart containers ── */
.chart-container { position: relative; height: 280px; }

/* ── Tabs ── */
.tabs { display: flex; gap: 0.25rem; border-bottom: 1px solid var(--border); margin-bottom: 1.75rem; }
.tab-btn {
  padding: 0.7rem 1.25rem; border-radius: 8px 8px 0 0;
  font-family: inherit; font-size: 0.88rem; font-weight: 500;
  border: 1px solid transparent; border-bottom: none;
  cursor: pointer; background: transparent; color: var(--text-secondary);
  transition: var(--transition);
}
.tab-btn.active { background: var(--glass); border-color: var(--border); color: var(--accent); }
.tab-btn:hover:not(.active) { color: var(--text-primary); background: var(--bg-card); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Misc ── */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.p-2 { padding: 1rem; }
.w-full { width: 100%; }
.fw-600 { font-weight: 600; }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-muted   { color: var(--text-secondary); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
}
.mobile-menu-toggle {
  display: none;
}

@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: 3rem 0 2rem; }
  
  /* Mobile Menu Styles */
  .mobile-menu-toggle {
    display: flex !important;
    align-items: center;
    justify-content: center;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
  }
  .mobile-menu-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
  }
  
  .navbar-nav.mobile-collapse {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: calc(100% + 12px);
    left: 1.5rem;
    right: 1.5rem;
    background: rgba(10, 15, 30, 0.98);
    backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    gap: 0.75rem;
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: var(--transition);
    z-index: 999;
  }
  .navbar-nav.mobile-collapse.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .navbar-nav.mobile-collapse .nav-link {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.02);
  }
  .navbar-nav.mobile-collapse .btn {
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1rem;
  }

  .survey-part { padding: 1.25rem; }
  .card { padding: 1.25rem; }
  .likert-group { gap: 0.35rem; }
  .likert-label { min-width: 44px; padding: 0.5rem 0.6rem; }
}

/* ── Validation Styles ── */
.form-control.is-invalid {
  border-color: var(--danger) !important;
  background: rgba(239, 68, 68, 0.05) !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
}
.form-control.is-invalid:focus {
  border-color: var(--danger) !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.35) !important;
}
.likert-label.is-invalid {
  border-color: var(--danger) !important;
  background: rgba(239, 68, 68, 0.08) !important;
}
.validation-summary {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid var(--danger);
  border-left: 5px solid var(--danger);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  color: #fca5a5;
  animation: shake 0.4s ease;
}
.validation-summary ul {
  margin-left: 1.5rem;
  margin-top: 0.5rem;
}
.validation-summary li {
  font-size: 0.88rem;
  margin-bottom: 0.25rem;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}