/* ----------------------------------------------------
   Design System & Global Variables
---------------------------------------------------- */
:root {
  --font-main: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --color-bg: #0f172a;
  --color-panel-bg: #1e293b;
  --color-panel-border: #334155;
  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-accent: #10b981;
  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;

  /* Document Preview (A4 Paper) Variables */
  --paper-bg: #ffffff;
  --paper-text: #1e293b;
  --paper-text-muted: #64748b;
  --paper-brand-color: #0f172a;
  --paper-border: #e2e8f0;
  --paper-accent-bg: #f8fafc;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ----------------------------------------------------
   1. App Header
---------------------------------------------------- */
.app-header {
  height: 60px;
  background-color: var(--color-panel-bg);
  border-bottom: 1px solid var(--color-panel-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
}

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

.brand .logo-icon {
  font-size: 24px;
}

.brand h1 {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.3px;
}

.brand .badge {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #334155;
  color: #cbd5e1;
  border-color: #475569;
}

.btn-secondary:hover {
  background-color: #475569;
  color: #ffffff;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: rgba(59, 130, 246, 0.1);
}

.btn-text {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 4px;
}

.btn-text:hover {
  color: var(--color-text-main);
  background-color: rgba(255, 255, 255, 0.05);
}

.btn-text.danger:hover {
  color: var(--color-danger);
}

.full-width {
  width: 100%;
}

/* ----------------------------------------------------
   2. Main Layout
---------------------------------------------------- */
.app-main {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* Left Sidebar Form */
.sidebar-form {
  width: 490px;
  background-color: var(--color-panel-bg);
  border-right: 1px solid var(--color-panel-border);
  overflow-y: auto;
  padding: 20px;
}

.form-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Details Section */
.form-section {
  background-color: #0f172a;
  border: 1px solid var(--color-panel-border);
  border-radius: 8px;
  overflow: hidden;
}

.form-section summary {
  padding: 12px 16px;
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 700;
  color: #e2e8f0;
  user-select: none;
  background-color: rgba(255, 255, 255, 0.02);
  transition: background 0.2s;
  display: flex;
  align-items: center;
}

.form-section summary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: #ffffff;
}

.section-title i {
  margin-right: 8px;
  color: var(--color-primary);
  font-size: 16px;
}

.section-content {
  padding: 16px;
  border-top: 1px solid var(--color-panel-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 0. Past Quotations Presets Grid */
.preset-label-hint {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.preset-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preset-card {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 10px 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.preset-card:hover {
  border-color: var(--color-primary);
  background-color: rgba(59, 130, 246, 0.08);
  transform: translateX(2px);
}

.preset-card.active {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(30, 41, 59, 0.9) 100%);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.preset-card-title {
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.preset-card-title i {
  color: #60a5fa;
}

.preset-card-sub {
  font-size: 11px;
  color: #94a3b8;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.form-group input,
.form-group select,
.form-group textarea {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: 6px;
  padding: 8px 12px;
  color: #ffffff;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Item Edit Card */
.item-edit-card {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: 6px;
  padding: 12px;
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.item-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.item-card-header span {
  font-weight: 700;
  font-size: 12px;
  color: var(--color-primary);
}

.item-card-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 8px;
}

/* Image Upload Box */
.image-upload-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.upload-area {
  border: 2px dashed #334155;
  border-radius: 6px;
  padding: 16px 8px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background-color: #1e293b;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.upload-area:hover {
  border-color: var(--color-primary);
  background-color: rgba(59, 130, 246, 0.05);
}

.upload-area i {
  font-size: 24px;
  color: var(--color-primary);
}

.upload-area span {
  font-size: 11px;
  color: var(--color-text-muted);
}

/* ----------------------------------------------------
   3. Right Live Preview Area
---------------------------------------------------- */
.preview-container {
  flex: 1;
  background-color: #090d16;
  overflow-y: auto;
  padding: 40px 20px;
  display: flex;
  justify-content: center;
}

.a4-wrapper {
  width: 100%;
  max-width: 820px;
}

/* Standard A4 Paper Ratio */
.a4-page {
  background-color: var(--paper-bg);
  color: var(--paper-text);
  width: 100%;
  min-height: 1120px;
  padding: 48px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 1px rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  position: relative;
  font-size: 13px;
  line-height: 1.5;
}

/* Header Grid */
.pv-header {
  display: grid;
  grid-template-columns: 180px 1fr 200px;
  align-items: center;
  gap: 16px;
}

.pv-logo-box {
  width: 100%;
  height: 64px;
  display: flex;
  align-items: center;
}

/* Logo Placeholder */
.logo-placeholder {
  width: 100%;
  height: 56px;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 10px;
  color: #ffffff;
  border: 1px dashed rgba(255, 255, 255, 0.2);
}

.logo-placeholder i {
  font-size: 26px;
  color: #60a5fa;
}

.logo-placeholder-text {
  display: flex;
  flex-direction: column;
}

.logo-placeholder-text .main {
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.5px;
}

.logo-placeholder-text .sub {
  font-size: 9px;
  color: #94a3b8;
}

.pv-logo-box img {
  max-width: 100%;
  max-height: 60px;
  object-fit: contain;
}

.pv-doc-title {
  text-align: center;
}

.pv-doc-title h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--paper-brand-color);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.pv-doc-title .pv-sub-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--paper-text-muted);
  letter-spacing: 1px;
  margin-top: 2px;
}

.pv-meta-info {
  font-size: 11.5px;
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 3px;
  color: #475569;
}

.pv-divider {
  height: 2px;
  background: linear-gradient(to right, #0f172a, #3b82f6, #0f172a);
  margin: 18px 0 20px 0;
}

/* Seller & Buyer Grid */
.pv-parties-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.pv-party-box {
  background-color: var(--paper-accent-bg);
  border: 1px solid var(--paper-border);
  border-radius: 6px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pv-party-tag {
  font-size: 10px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.8px;
  margin-bottom: 4px;
}

.pv-party-name {
  font-size: 15px;
  font-weight: 800;
  color: var(--paper-brand-color);
  margin-bottom: 6px;
}

.pv-party-detail {
  font-size: 11.5px;
  color: #475569;
}

/* Item Table */
.pv-table-wrapper {
  margin-bottom: 20px;
}

.pv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.pv-table th {
  background-color: #0f172a;
  color: #ffffff;
  padding: 10px 12px;
  font-weight: 700;
  text-align: left;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.pv-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--paper-border);
  color: #334155;
  vertical-align: top;
}

.pv-table tr:nth-child(even) td {
  background-color: #f8fafc;
}

.pv-item-desc {
  font-size: 11px;
  color: var(--paper-text-muted);
  margin-top: 3px;
  white-space: pre-line;
}

/* Summary Section */
.pv-summary-section {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 20px;
  align-items: flex-end;
  margin-bottom: 24px;
}

.pv-amount-words {
  background-color: #f1f5f9;
  border-left: 4px solid var(--color-primary);
  padding: 12px 16px;
  border-radius: 0 6px 6px 0;
}

.words-label {
  font-size: 10px;
  font-weight: 800;
  color: var(--paper-text-muted);
  letter-spacing: 0.5px;
}

.words-value {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--paper-brand-color);
  margin-top: 2px;
  line-height: 1.4;
}

.pv-calc-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  color: #475569;
}

.calc-row.total-row {
  font-size: 15px;
  font-weight: 800;
  color: var(--paper-brand-color);
  border-top: 2px solid #0f172a;
  padding-top: 6px;
  margin-top: 4px;
}

/* Terms Grid */
.pv-terms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 30px;
}

.pv-bank-card,
.pv-rules-card {
  border: 1px solid var(--paper-border);
  border-radius: 6px;
  padding: 12px 14px;
  background-color: #f8fafc;
}

.terms-title {
  font-weight: 800;
  font-size: 11.5px;
  color: var(--paper-brand-color);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.terms-title i {
  color: var(--color-primary);
}

.bank-content {
  font-size: 11px;
  color: #475569;
  white-space: pre-line;
  line-height: 1.6;
}

.rules-list {
  padding-left: 16px;
  font-size: 11px;
  color: #475569;
  line-height: 1.6;
}

.rules-list li {
  margin-bottom: 4px;
}

/* Signatures & Stamp */
.pv-signatures {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding-top: 10px;
  margin-bottom: 20px;
}

.sig-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.seller-sig-box {
  position: relative;
}

.sig-title {
  font-weight: 800;
  font-size: 11.5px;
  color: var(--paper-brand-color);
}

.sig-line, .sig-date {
  font-size: 11px;
  color: #475569;
}

/* Stamp Container */
.stamp-container {
  position: absolute;
  top: -15px;
  right: 10px;
  width: 140px;
  height: 100px;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Default Stamp Placeholder */
.stamp-placeholder {
  width: 130px;
  height: 90px;
  border: 3px double #dc2626;
  border-radius: 8px;
  background-color: rgba(239, 68, 68, 0.04);
  color: #dc2626;
  padding: 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transform: rotate(-4deg);
  opacity: 0.88;
}

.stamp-placeholder .stamp-top {
  font-size: 8px;
  font-weight: 800;
  border-bottom: 1px solid rgba(220, 38, 38, 0.4);
  width: 100%;
  padding-bottom: 2px;
  text-transform: uppercase;
}

.stamp-placeholder .stamp-mid {
  font-size: 11px;
  font-weight: 900;
  margin: 3px 0;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.stamp-placeholder .stamp-bot {
  font-size: 8px;
}

.stamp-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  opacity: 0.9;
  transform: rotate(-3deg);
}

/* Footer */
.pv-footer {
  border-top: 1px solid var(--paper-border);
  padding-top: 10px;
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--paper-text-muted);
}

/* ----------------------------------------------------
   4. Print Stylesheet
---------------------------------------------------- */
@media print {
  body {
    background-color: #ffffff !important;
    color: #000000 !important;
    overflow: visible !important;
    height: auto !important;
  }

  .app-header,
  .sidebar-form {
    display: none !important;
  }

  .app-main {
    display: block !important;
    overflow: visible !important;
  }

  .preview-container {
    background-color: #ffffff !important;
    padding: 0 !important;
    overflow: visible !important;
  }

  .a4-wrapper {
    max-width: 100% !important;
    width: 100% !important;
  }

  .a4-page {
    box-shadow: none !important;
    padding: 0 !important;
    min-height: auto !important;
    width: 100% !important;
  }

  .pv-parties-grid,
  .pv-table-wrapper,
  .pv-summary-section,
  .pv-terms-grid,
  .pv-signatures {
    page-break-inside: avoid;
  }
}