/* ============================================
   P2 Form App — Modern Dual-Theme Design
   ============================================ */

/* ---------- CSS Custom Properties (Light) ---------- */
:root,
[data-theme="light"] {
  --bg-primary: #f8f9fc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f3f9;
  --bg-card: #ffffff;
  --bg-input: #ffffff;
  --bg-navbar: rgba(255, 255, 255, 0.82);
  --bg-section-header: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --bg-subsection: #f8f9fc;
  --bg-code: #1e1e2e;

  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --text-on-accent: #ffffff;
  --text-code: #c9d1d9;

  --border-color: #e2e8f0;
  --border-light: #f1f5f9;

  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-soft: rgba(99, 102, 241, 0.08);
  --accent-ring: rgba(99, 102, 241, 0.25);
  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.1);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.1);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.1);
  --info: #06b6d4;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* ---------- CSS Custom Properties (Dark) ---------- */
[data-theme="dark"] {
  --bg-primary: #0f1117;
  --bg-secondary: #1a1b26;
  --bg-tertiary: #1e2030;
  --bg-card: #1a1b26;
  --bg-input: #232433;
  --bg-navbar: rgba(15, 17, 23, 0.85);
  --bg-section-header: linear-gradient(135deg, #6366f1 0%, #7c3aed 100%);
  --bg-subsection: #1e2030;
  --bg-code: #0d1117;

  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-on-accent: #ffffff;
  --text-code: #7ee787;

  --border-color: #2d2f3e;
  --border-light: #252737;

  --accent: #818cf8;
  --accent-hover: #6366f1;
  --accent-soft: rgba(129, 140, 248, 0.1);
  --accent-ring: rgba(129, 140, 248, 0.3);
  --success: #34d399;
  --success-soft: rgba(52, 211, 153, 0.12);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.12);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.12);
  --info: #22d3ee;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.4);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.2), 0 4px 12px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 20px rgba(129, 140, 248, 0.2);
}

/* ---------- Base Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ---------- Navbar ---------- */
.app-navbar {
  background: var(--bg-navbar);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.app-navbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  text-decoration: none;
}

.app-navbar .brand-icon {
  width: 34px;
  height: 34px;
  background: var(--bg-section-header);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-user {
  color: var(--text-secondary);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ---------- Theme Toggle ---------- */
.theme-toggle {
  width: 42px;
  height: 24px;
  background: var(--border-color);
  border: none;
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: background 0.3s ease;
  padding: 0;
}

.theme-toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: var(--bg-secondary);
  border-radius: 50%;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

[data-theme="dark"] .theme-toggle {
  background: var(--accent);
}

[data-theme="dark"] .theme-toggle::after {
  transform: translateX(18px);
}

.theme-icon {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ---------- Buttons ---------- */
.btn-accent {
  background: var(--accent);
  color: var(--text-on-accent);
  border: none;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 10px 24px;
  transition: all 0.2s ease;
}

.btn-accent:hover {
  background: var(--accent-hover);
  color: var(--text-on-accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn-glass {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent);
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 10px 24px;
  transition: all 0.2s ease;
}

.btn-glass:hover {
  background: var(--accent);
  color: var(--text-on-accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 10px 24px;
  transition: all 0.2s ease;
}

.btn-ghost:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.btn-success-modern {
  background: var(--success);
  color: white;
  border: none;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 10px 24px;
  transition: all 0.2s ease;
}

.btn-success-modern:hover {
  filter: brightness(1.1);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.btn-danger-modern {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid transparent;
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 10px 24px;
  transition: all 0.2s ease;
}

.btn-danger-modern:hover {
  background: var(--danger);
  color: white;
}

/* ---------- Auth Pages ---------- */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.auth-bg {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: -1;
}

[data-theme="light"] .auth-bg {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #6366f1 100%);
}

[data-theme="dark"] .auth-bg {
  background: linear-gradient(135deg, #0f0c29 0%, #1a1b3a 50%, #24243e 100%);
}

.auth-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 20s ease-in-out infinite;
}

.auth-bg-orb:nth-child(1) {
  width: 400px; height: 400px;
  background: #818cf8;
  top: -100px; left: -100px;
}

.auth-bg-orb:nth-child(2) {
  width: 350px; height: 350px;
  background: #c084fc;
  bottom: -80px; right: -80px;
  animation-delay: -7s;
}

.auth-bg-orb:nth-child(3) {
  width: 250px; height: 250px;
  background: #38bdf8;
  top: 50%; left: 50%;
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(20px, 10px) scale(1.02); }
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 44px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  transition: background 0.3s ease, border-color 0.3s ease;
  position: relative;
}

[data-theme="light"] .auth-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .auth-card {
  background: rgba(26, 27, 38, 0.92);
  backdrop-filter: blur(20px);
}

.auth-card-wide {
  max-width: 780px;
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo {
  width: 56px;
  height: 56px;
  background: var(--bg-section-header);
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.6rem;
  margin-bottom: 16px;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.auth-header h2 {
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.auth-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.auth-theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
}

.section-title {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 8px;
  margin-top: 20px;
  margin-bottom: 16px;
}

/* ---------- Form Controls ---------- */
.form-control, .form-select {
  background: var(--bg-input);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  padding: 10px 14px;
  transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
  background: var(--bg-input);
  border-color: var(--accent);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-control:disabled, .form-control[readonly] {
  background: var(--bg-tertiary) !important;
  color: var(--text-secondary) !important;
  border-color: var(--border-color) !important;
  opacity: 0.85;
  cursor: not-allowed;
}

.form-control-sm {
  padding: 7px 12px;
  font-size: 0.85rem;
}

.form-label {
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-label.small {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Override Bootstrap text utilities for theme support */
.text-muted, small.text-muted {
  color: var(--text-muted) !important;
}

.text-danger, .text-danger span {
  color: var(--danger) !important;
}

/* Sub-section headings (h6) — must be visible in both themes */
.sub-section h6,
.card-body h6 {
  color: var(--text-primary);
}

.sub-section h6.text-primary,
h6.text-primary {
  color: var(--accent) !important;
}

/* Bootstrap overrides for theme-aware text */
p.text-muted, .small.text-muted, p.small {
  color: var(--text-muted) !important;
}

/* fw-bold label inside import section */
.form-label.fw-bold {
  color: var(--text-primary);
  font-size: 0.9rem;
}

/* Serial Add Row button */
.add-serial-row {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px dashed var(--accent);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  padding: 5px 14px;
  transition: all 0.2s ease;
}

.add-serial-row:hover {
  background: var(--accent);
  color: var(--text-on-accent);
  border-style: solid;
}

/* Select dropdown option styling */
.form-select option {
  background: var(--bg-card);
  color: var(--text-primary);
}

.form-check-input {
  background-color: var(--bg-input);
  border-color: var(--border-color);
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

.form-check-input:focus {
  box-shadow: 0 0 0 3px var(--accent-ring);
  border-color: var(--accent);
}

/* ---------- Info Bar (Mill Details) ---------- */
.info-bar {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 24px;
}

.info-bar-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 8px;
}

.info-bar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
}

.info-item {
  font-size: 0.85rem;
}

.info-item strong {
  color: var(--text-primary);
}

.info-item span {
  color: var(--text-secondary);
  margin-left: 4px;
}

/* ---------- Form Sections (Cards) ---------- */
.form-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all 0.3s ease;
}

.form-section:hover {
  box-shadow: var(--shadow-md);
}

.form-section .card-header {
  background: var(--bg-section-header);
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 22px;
  border: none;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.01em;
}

.form-section .card-header i {
  font-size: 1.1rem;
  opacity: 0.85;
}

.form-section .card-body {
  padding: 22px;
}

/* ---------- Sub-sections ---------- */
.sub-section {
  background: var(--bg-subsection);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 14px;
  transition: all 0.2s ease;
}

.sub-section:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-soft);
}

.sub-section .form-check-label {
  color: var(--text-primary);
  font-size: 0.9rem;
}

.collapse-fields {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border-color);
  animation: slideDown 0.25s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Serial Entry Rows ---------- */
.serial-row {
  align-items: center;
  padding: 4px 0;
}

.serial-badge {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.8rem;
}

/* ---------- JSON Preview ---------- */
.json-preview {
  background: var(--bg-code);
  border-radius: var(--radius-md);
  padding: 24px;
  max-height: 600px;
  overflow-y: auto;
  font-family: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  border: 1px solid var(--border-color);
}

.json-preview pre {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--text-code);
}

/* ---------- Status Cards ---------- */
.status-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
}

.status-card-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-card-header.success {
  background: var(--success-soft);
  border-bottom: 2px solid var(--success);
}

.status-card-header.error {
  background: var(--danger-soft);
  border-bottom: 2px solid var(--danger);
}

.status-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.status-icon.success {
  background: var(--success);
  color: white;
}

.status-icon.error {
  background: var(--danger);
  color: white;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-badge.success {
  background: var(--success-soft);
  color: var(--success);
}

.status-badge.error {
  background: var(--danger-soft);
  color: var(--danger);
}

/* ---------- Alerts ---------- */
.alert-modern {
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border: none;
}

.alert-danger-modern {
  background: var(--danger-soft);
  color: var(--danger);
}

/* ---------- Misc ---------- */
.text-accent { color: var(--accent) !important; }
.text-muted-custom { color: var(--text-secondary) !important; }
.bg-card { background: var(--bg-card); }

.divider {
  height: 1px;
  background: var(--border-color);
  margin: 16px 0;
}

.link-accent {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.link-accent:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.preview-header {
  background: var(--warning-soft);
  border: 1px solid var(--warning);
  border-radius: var(--radius-md);
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.preview-header .label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text-primary);
}

.pill {
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
}

.pill-accent {
  background: var(--accent-soft);
  color: var(--accent);
}

.pill-warning {
  background: var(--warning-soft);
  color: var(--warning);
}

.pill-success {
  background: var(--success-soft);
  color: var(--success);
}

/* ---------- Preview Floating Action Bar ---------- */
.action-bar {
  position: sticky;
  bottom: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  z-index: 50;
}

/* ---------- Submit Button Area ---------- */
.submit-area {
  text-align: center;
  padding: 32px 0 48px;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .auth-card { padding: 28px; }
  .auth-card-wide { max-width: 95%; }
  .form-section .card-body { padding: 14px; }
  .info-bar-grid { grid-template-columns: 1fr 1fr; }
  .action-bar { flex-direction: column; gap: 12px; }
}

/* ---------- Spinner ---------- */
.spinner-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.2s ease infinite;
  margin: 0 2px;
}
.spinner-dot:nth-child(2) { animation-delay: 0.2s; }
.spinner-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes pulse {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1.2); }
}