/* ============================================================
   Bright Top Shipping System — Frontend Form Styles
   بنك ألوان: Navy #1E2D6B  |  Gold #B8860B
   Version: 1.0.0
   ============================================================ */

/* ── CSS Variables ──────────────────────────────────────────────────────────── */
:root {
  --bts-navy:       #1E2D6B;
  --bts-navy-dark:  #15235a;
  --bts-navy-light: #2a3f8f;
  --bts-gold:       #B8860B;
  --bts-gold-light: #d4a012;
  --bts-gold-pale:  #fdf6e3;
  --bts-white:      #ffffff;
  --bts-bg:         #f0f4ff;
  --bts-surface:    #ffffff;
  --bts-border:     #d0d8ee;
  --bts-text:       #1a1a2e;
  --bts-muted:      #6b7280;
  --bts-success:    #10b981;
  --bts-error:      #ef4444;
  --bts-warning:    #f59e0b;
  --bts-info:       #3b82f6;
  --bts-radius:     12px;
  --bts-radius-sm:  8px;
  --bts-shadow:     0 4px 24px rgba(30,45,107,.10);
  --bts-shadow-lg:  0 8px 40px rgba(30,45,107,.16);
  --bts-font:       'Segoe UI', 'Noto Sans Arabic', Tahoma, sans-serif;
  --bts-mono:       'Courier New', 'Consolas', monospace;
  --bts-transition: .22s cubic-bezier(.4,0,.2,1);
}

/* ── Wrapper ────────────────────────────────────────────────────────────────── */
.bts-wrapper {
  font-family: var(--bts-font);
  direction: rtl;
  max-width: 860px;
  margin: 32px auto;
  padding: 0 16px;
  color: var(--bts-text);
}

/* ── Form Header ────────────────────────────────────────────────────────────── */
.bts-form-header {
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, var(--bts-navy) 0%, var(--bts-navy-light) 100%);
  color: var(--bts-white);
  border-radius: var(--bts-radius) var(--bts-radius) 0 0;
  padding: 28px 32px;
  margin-bottom: 0;
}

.bts-form-logo {
  height: 64px;
  width: auto;
  filter: brightness(0) invert(1);
  flex-shrink: 0;
}

.bts-form-title-area {
  flex: 1;
}

.bts-form-title-ar {
  margin: 0 0 4px;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -.5px;
  color: var(--bts-white);
}

.bts-form-title-en {
  margin: 0 0 8px;
  font-size: .95rem;
  font-weight: 500;
  color: rgba(255,255,255,.75);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.bts-title-divider {
  width: 48px;
  height: 3px;
  background: var(--bts-gold);
  border-radius: 2px;
  margin: 8px 0;
}

.bts-company-name {
  margin: 0;
  font-size: .82rem;
  color: rgba(255,255,255,.6);
  letter-spacing: .5px;
}

/* ── Alert Banner ───────────────────────────────────────────────────────────── */
.bts-alert {
  padding: 14px 20px;
  border-radius: var(--bts-radius-sm);
  margin: 16px 0;
  font-size: .92rem;
  line-height: 1.6;
  border-right: 4px solid;
}

.bts-alert-error {
  background: #fef2f2;
  border-color: var(--bts-error);
  color: #991b1b;
}

.bts-alert-error ul {
  margin: 6px 0 0 0;
  padding-right: 18px;
}

.bts-alert-error li {
  margin-bottom: 3px;
}

/* ── Form Card ──────────────────────────────────────────────────────────────── */
.bts-form {
  background: var(--bts-surface);
  border: 1px solid var(--bts-border);
  border-top: none;
  border-radius: 0 0 var(--bts-radius) var(--bts-radius);
  padding: 32px;
  box-shadow: var(--bts-shadow);
}

/* ── Section ────────────────────────────────────────────────────────────────── */
.bts-section {
  margin-bottom: 32px;
}

.bts-section:last-of-type {
  margin-bottom: 0;
}

.bts-section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--bts-navy);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--bts-bg);
}

.bts-section-label em {
  font-style: normal;
  font-size: .78rem;
  font-weight: 500;
  color: var(--bts-muted);
  letter-spacing: .5px;
}

.bts-section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bts-navy);
  color: var(--bts-white);
  font-size: .82rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* ── Field Grid ─────────────────────────────────────────────────────────────── */
.bts-field-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 600px) {
  .bts-field-grid {
    grid-template-columns: 1fr;
  }
  .bts-form {
    padding: 20px 16px;
  }
  .bts-form-header {
    flex-direction: column;
    text-align: center;
    padding: 20px 16px;
  }
}

.bts-field-wide {
  grid-column: 1 / -1;
}

/* ── Field Group ────────────────────────────────────────────────────────────── */
.bts-field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bts-field-group label {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: .88rem;
  cursor: pointer;
  user-select: none;
}

.bts-label-ar {
  font-weight: 700;
  color: var(--bts-text);
  font-size: .92rem;
}

.bts-label-en {
  font-weight: 400;
  color: var(--bts-muted);
  font-size: .78rem;
  direction: ltr;
}

.bts-req {
  color: var(--bts-error);
  font-weight: 700;
  font-size: .88rem;
  margin-right: 2px;
}

/* ── Inputs ─────────────────────────────────────────────────────────────────── */
.bts-field-group input[type="text"],
.bts-field-group input[type="email"],
.bts-field-group input[type="tel"],
.bts-field-group input[type="number"],
.bts-field-group input[type="date"],
.bts-field-group textarea,
.bts-field-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--bts-border);
  border-radius: var(--bts-radius-sm);
  font-family: var(--bts-font);
  font-size: .93rem;
  color: var(--bts-text);
  background: var(--bts-white);
  transition: border-color var(--bts-transition), box-shadow var(--bts-transition);
  outline: none;
  box-sizing: border-box;
  -webkit-appearance: none;
}

.bts-field-group input:focus,
.bts-field-group textarea:focus,
.bts-field-group select:focus {
  border-color: var(--bts-navy);
  box-shadow: 0 0 0 3px rgba(30,45,107,.12);
}

.bts-field-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='8'%3E%3Cpath d='M1 1l6 6 6-6' stroke='%231E2D6B' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 12px center;
  padding-left: 36px;
}

/* Readonly (timestamp) */
.bts-readonly {
  background: var(--bts-bg) !important;
  color: var(--bts-muted) !important;
  cursor: not-allowed !important;
  font-size: .85rem !important;
}

/* Monospace for address/codes */
.bts-monospace {
  font-family: var(--bts-mono) !important;
  letter-spacing: 1.5px;
  font-size: .97rem !important;
  text-transform: uppercase;
}

/* ── Error State ────────────────────────────────────────────────────────────── */
.bts-has-error input,
.bts-has-error textarea,
.bts-has-error select {
  border-color: var(--bts-error) !important;
  background: #fff5f5;
}

.bts-error {
  display: block;
  font-size: .8rem;
  color: var(--bts-error);
  margin-top: 2px;
  padding-right: 4px;
}

/* ── Hint ───────────────────────────────────────────────────────────────────── */
.bts-hint {
  font-size: .78rem;
  color: var(--bts-muted);
  margin-top: 2px;
}

/* ── Address Wrapper (live preview) ─────────────────────────────────────────── */
.bts-address-wrap {
  position: relative;
}

.bts-addr-live {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: .75rem;
  font-weight: 700;
  font-family: var(--bts-mono);
  letter-spacing: 1px;
  pointer-events: none;
  transition: color var(--bts-transition);
}

.bts-addr-live.valid   { color: var(--bts-success); }
.bts-addr-live.invalid { color: var(--bts-error); }

/* ── Format Hint Panel ──────────────────────────────────────────────────────── */
.bts-format-hint {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 4px;
}

.bts-hint-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bts-navy);
  color: var(--bts-white);
  font-size: .7rem;
  font-style: normal;
  cursor: pointer;
  flex-shrink: 0;
}

.bts-hint-panel {
  display: none;
  position: absolute;
  right: 0;
  top: 26px;
  background: var(--bts-white);
  border: 1px solid var(--bts-border);
  border-radius: var(--bts-radius-sm);
  padding: 12px 14px;
  font-size: .8rem;
  line-height: 1.7;
  box-shadow: var(--bts-shadow);
  z-index: 99;
  min-width: 240px;
  color: var(--bts-text);
}

.bts-hint-panel code,
.bts-code-sample {
  background: var(--bts-bg);
  padding: 2px 7px;
  border-radius: 4px;
  font-family: var(--bts-mono);
  font-size: .82rem;
  color: var(--bts-navy);
  letter-spacing: 1px;
}

.bts-format-hint:hover .bts-hint-panel,
.bts-format-hint:focus-within .bts-hint-panel {
  display: block;
}

/* ── Submit Area ────────────────────────────────────────────────────────────── */
.bts-submit-area {
  margin-top: 32px;
  text-align: center;
}

.bts-submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, var(--bts-navy) 0%, var(--bts-navy-light) 100%);
  color: var(--bts-white);
  border: none;
  border-radius: 50px;
  padding: 14px 40px;
  font-family: var(--bts-font);
  cursor: pointer;
  transition: transform var(--bts-transition), box-shadow var(--bts-transition), opacity var(--bts-transition);
  box-shadow: 0 4px 18px rgba(30,45,107,.30);
  min-width: 280px;
}

.bts-submit-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(30,45,107,.38);
}

.bts-submit-btn:active:not(:disabled) {
  transform: translateY(0);
}

.bts-submit-btn:disabled {
  opacity: .65;
  cursor: not-allowed;
}

.bts-btn-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.bts-btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.bts-btn-ar {
  font-size: 1rem;
  font-weight: 700;
}

.bts-btn-en {
  font-size: .72rem;
  font-weight: 400;
  opacity: .8;
  letter-spacing: .5px;
  text-transform: uppercase;
}

/* Spinner inside submit */
.bts-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255,255,255,.35);
  border-top-color: var(--bts-white);
  border-radius: 50%;
  animation: bts-spin .7s linear infinite;
  flex-shrink: 0;
}

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

.bts-submit-note {
  margin-top: 14px;
  font-size: .78rem;
  color: var(--bts-muted);
  line-height: 1.6;
}

/* ── Success Screen ─────────────────────────────────────────────────────────── */
.bts-success-wrapper {
  text-align: center;
}

.bts-success-box {
  background: var(--bts-surface);
  border: 1px solid #d1fae5;
  border-top: 5px solid var(--bts-success);
  border-radius: var(--bts-radius);
  padding: 48px 40px;
  box-shadow: var(--bts-shadow);
  max-width: 520px;
  margin: 0 auto;
}

.bts-success-anim {
  font-size: 4rem;
  margin-bottom: 16px;
  animation: bts-pop .5s cubic-bezier(.34,1.56,.64,1) both;
}

@keyframes bts-pop {
  from { transform: scale(0); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

.bts-success-box h2 {
  color: var(--bts-navy);
  font-size: 1.4rem;
  margin: 0 0 6px;
}

.bts-success-en {
  color: var(--bts-muted);
  font-size: .88rem;
  margin: 0 0 24px;
}

.bts-ref-box {
  background: var(--bts-bg);
  border: 1px dashed var(--bts-navy);
  border-radius: var(--bts-radius-sm);
  padding: 14px 20px;
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}

.bts-ref-label {
  font-size: .78rem;
  color: var(--bts-muted);
}

.bts-ref-number {
  font-family: var(--bts-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--bts-navy);
  letter-spacing: 2px;
}

.bts-success-details {
  font-size: .85rem;
  color: var(--bts-muted);
  margin-bottom: 24px;
  line-height: 2;
}

.bts-success-details p {
  margin: 0;
}

/* ── Buttons (generic) ──────────────────────────────────────────────────────── */
.bts-btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 50px;
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--bts-transition);
  cursor: pointer;
  border: none;
}

.bts-btn-primary {
  background: var(--bts-navy);
  color: var(--bts-white);
}

.bts-btn-primary:hover {
  background: var(--bts-navy-light);
  color: var(--bts-white);
}

/* ── Textarea ───────────────────────────────────────────────────────────────── */
.bts-field-group textarea {
  min-height: 90px;
  resize: vertical;
}

/* ── Checkbox / Radio ───────────────────────────────────────────────────────── */
.bts-checkbox-group,
.bts-radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.bts-checkbox-group label,
.bts-radio-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .88rem;
  cursor: pointer;
  background: var(--bts-bg);
  padding: 5px 12px;
  border-radius: 20px;
  border: 1.5px solid var(--bts-border);
  transition: all var(--bts-transition);
}

.bts-checkbox-group label:hover,
.bts-radio-group label:hover {
  border-color: var(--bts-navy);
  background: rgba(30,45,107,.05);
}

.bts-checkbox-group input[type="checkbox"],
.bts-radio-group input[type="radio"] {
  width: auto !important;
  padding: 0 !important;
  border: none !important;
  box-shadow: none !important;
  accent-color: var(--bts-navy);
}

/* ── Loading overlay (full page) ────────────────────────────────────────────── */
.bts-loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(2px);
}

.bts-loading-card {
  background: var(--bts-white);
  border-radius: var(--bts-radius);
  padding: 32px 40px;
  text-align: center;
  box-shadow: var(--bts-shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  font-size: .95rem;
  color: var(--bts-navy);
  font-weight: 600;
}

.bts-loading-card .bts-spinner {
  width: 36px;
  height: 36px;
  border: 4px solid rgba(30,45,107,.15);
  border-top-color: var(--bts-navy);
  border-radius: 50%;
  animation: bts-spin .7s linear infinite;
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .bts-submit-btn {
    width: 100%;
    min-width: unset;
    justify-content: center;
  }
  .bts-section-label {
    font-size: .95rem;
  }
  .bts-form-title-ar {
    font-size: 1.3rem;
  }
}