/* ===== CHINACNU Steel - Expo Quote System ===== */
/* Tech-industrial dark theme, mobile-first */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2236;
  --bg-input: #0d1321;
  --border: #2a3a5c;
  --border-focus: #3b82f6;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.3);
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: all 0.3s ease;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background animated grid */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

/* Top accent line */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #8b5cf6, var(--accent));
  z-index: 1000;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 520px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

.container.admin-container {
  max-width: 900px;
}

/* ===== Header / Logo ===== */
.header {
  text-align: center;
  padding: 30px 0 10px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.logo-text {
  text-align: left;
}

.logo-text h1 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.logo-text .subtitle {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.header p.tagline {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 12px;
  padding: 0 20px;
}

/* ===== Cards ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(59, 130, 246, 0.3);
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--accent);
  border-radius: 2px;
}

/* ===== Form Elements ===== */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.form-group label .required {
  color: var(--accent);
  margin-left: 2px;
}

.form-group label .optional {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 11px;
  margin-left: 4px;
}

input[type="text"],
input[type="number"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 16px; /* prevents iOS zoom */
  font-family: inherit;
  transition: var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8.825L0.375 3.2l0.85-0.85L6 7.125l4.775-4.775l0.85 0.85L6 8.825z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

textarea {
  resize: vertical;
  min-height: 70px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  letter-spacing: 0.5px;
  text-decoration: none;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #2563eb);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px var(--accent-glow);
}

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

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--bg-card);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #059669);
  color: #fff;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  transform: translateY(-1px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  width: auto;
}

/* ===== Status Badges ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.badge-pending {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-quoted {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-pending::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warning);
  animation: pulse 2s infinite;
}

.badge-quoted::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ===== Result / Status Display ===== */
.result-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 16px;
}

.result-box .label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.result-box .value {
  font-size: 16px;
  color: var(--text-primary);
  font-weight: 600;
  word-break: break-all;
}

.result-box .value.quote-text {
  color: var(--success);
  font-size: 20px;
  line-height: 1.4;
  word-break: normal;
}

.status-card {
  text-align: center;
  padding: 30px 20px;
}

.status-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.status-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

/* ===== Loading Spinner ===== */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Toast / Notification ===== */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  z-index: 9999;
  transition: transform 0.3s ease;
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.toast-success {
  border-color: var(--success);
}

.toast.toast-error {
  border-color: var(--danger);
}

/* ===== Admin Specific ===== */
.admin-warning {
  background: var(--danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--danger);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.req-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.req-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  transition: var(--transition);
}

.req-item:hover {
  border-color: rgba(59, 130, 246, 0.3);
}

.req-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  flex-wrap: wrap;
  gap: 8px;
}

.req-id {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 12px;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
}

.req-id:hover {
  background: rgba(59, 130, 246, 0.2);
}

.req-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 13px;
}

.req-detail {
  color: var(--text-secondary);
}

.req-detail strong {
  color: var(--text-primary);
  font-weight: 600;
}

.req-detail.full-width {
  grid-column: 1 / -1;
}

.req-link {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.req-link a {
  color: var(--accent);
  font-size: 12px;
  text-decoration: none;
  word-break: break-all;
}

.req-link a:hover {
  text-decoration: underline;
}

.copy-btn {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  white-space: nowrap;
}

.copy-btn:hover {
  background: rgba(59, 130, 246, 0.2);
}

/* ===== Hidden ===== */
.hidden {
  display: none !important;
}

/* ===== Misc ===== */
.divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 13px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.gap-8 { gap: 8px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }

.inline-flex {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Footer */
.footer {
  text-align: center;
  padding: 30px 0 10px;
  color: var(--text-muted);
  font-size: 12px;
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .container {
    padding: 12px 12px 30px;
  }

  .card {
    padding: 20px 16px;
  }

  .req-details {
    grid-template-columns: 1fr;
  }

  .logo-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .logo-text h1 {
    font-size: 18px;
  }
}

/* ===== Animations ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.4s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide-up {
  animation: slideUp 0.5s ease;
}

/* Glow effect on submit button */
.btn-primary.glow {
  position: relative;
  overflow: hidden;
}

.btn-primary.glow::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1), transparent 60%);
  animation: glowMove 3s ease-in-out infinite;
}

@keyframes glowMove {
  0%, 100% { transform: translate(-30%, -30%); }
  50% { transform: translate(30%, 30%); }
}