/* ===========================
   Brand + Global
   =========================== */

/* Brand colors */
:root {
  --brand-green: #22c55e;
  --brand-dark: #0f172a;
  --brand-light: #e5e7eb;
  --brand-bg: #020617;
  --border-subtle: #1f2937;
  --text-muted: #9ca3af;
}

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

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: var(--brand-bg);
  color: var(--brand-light);
}

/* Simple link styling */
a {
  color: var(--brand-green);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ===========================
   App Shell
   =========================== */

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(90deg, #020617, #0f172a);
  color: var(--brand-light);
  border-bottom: 1px solid #1f2937;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 40px;
  height: 40px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-line {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.brand-main {
  font-size: 1.4rem;
  font-weight: 600;
  color: #ffffff;
}

.brand-accent {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--brand-green);
}

.app-subtitle {
  font-size: 0.85rem;
  color: #9ca3af;
}

.app-badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.14);
  border: 1px solid var(--brand-green);
  color: var(--brand-green);
}

/* Main layout */

.app-main {
  flex: 1;
  padding: 1.25rem 1.5rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Generic two-column layout (used for tools page) */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 1rem;
}

/* Panels */

.panel {
  background: #020617;
  border-radius: 0.75rem;
  border: 1px solid #1f2937;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.75);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #1f2937;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #9ca3af;
}

.panel-body {
  padding: 0.9rem 1rem 1rem;
}

/* Sidebar form */

.sidebar .field {
  margin-bottom: 0.75rem;
}

.field-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
  color: #cbd5f5;
}

.field-input {
  width: 100%;
  border-radius: 0.5rem;
  border: 1px solid #1f2937;
  background: #020617;
  padding: 0.5rem 0.6rem;
  color: #e5e7eb;
  font-size: 0.85rem;
}

.field-input::placeholder {
  color: #6b7280;
}

.field-input:focus {
  outline: 2px solid var(--brand-green);
  outline-offset: 1px;
  border-color: var(--brand-green);
}

.field-textarea {
  resize: vertical;
  min-height: 3rem;
}

.field-help {
  margin: 0.25rem 0 0;
  font-size: 0.75rem;
  color: #6b7280;
}

.field-inline {
  display: flex;
  gap: 0.75rem;
}

.field-half {
  flex: 1;
}

/* ===========================
   Buttons
   =========================== */

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.5rem 0 0.75rem;
}

.btn {
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  transition: background 0.12s ease, border-color 0.12s ease,
    transform 0.06s ease, box-shadow 0.12s ease;
}

/* supports both class="btn btn-primary" and class="btn primary" */
.btn-primary,
.btn.primary {
  background: var(--brand-green);
  border-color: var(--brand-green);
  color: #0f172a;
  box-shadow: 0 10px 25px rgba(34, 197, 94, 0.45);
}

.btn-primary:hover:not(:disabled),
.btn.primary:hover:not(:disabled) {
  background: #16a34a;
  border-color: #16a34a;
  transform: translateY(-1px);
}

.btn-secondary,
.btn.secondary {
  background: transparent;
  border-color: #4b5563;
  color: #e5e7eb;
}

.btn-secondary:hover:not(:disabled),
.btn.secondary:hover:not(:disabled) {
  border-color: #9ca3af;
  background: rgba(15, 23, 42, 0.6);
}

.btn-ghost,
.btn.ghost {
  background: transparent;
  border-color: transparent;
  color: #e5e7eb;
}
.btn-ghost:hover:not(:disabled),
.btn.ghost:hover:not(:disabled) {
  background: rgba(15, 23, 42, 0.7);
  border-color: #374151;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

/* Small circular icon button (used for zoom) */
.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid #4b5563;
  background: transparent;
  color: #e5e7eb;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease,
    transform 0.06s ease;
}
.icon-btn:hover {
  background: rgba(15, 23, 42, 0.7);
  border-color: #9ca3af;
  transform: translateY(-1px);
}

/* ===========================
   Status bar
   =========================== */

.status-bar {
  margin-top: 0.4rem;
  padding: 0.45rem 0.6rem;
  border-radius: 0.5rem;
  font-size: 0.78rem;
  border: 1px solid transparent;
}

.status-info {
  background: rgba(15, 23, 42, 0.9);
  border-color: #1f2937;
  color: #9ca3af;
}

.status-success {
  background: rgba(22, 163, 74, 0.15);
  border-color: #16a34a;
  color: #bbf7d0;
}

.status-error {
  background: rgba(239, 68, 68, 0.16);
  border-color: #ef4444;
  color: #fecaca;
}

/* ===========================
   Hero / Landing
   =========================== */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.5rem 1.75rem;
  border-radius: 1rem;
  background: radial-gradient(circle at top left, #0b1120, #020617 55%);
  border: 1px solid #1f2937;
  box-shadow: 0 28px 60px rgba(15, 23, 42, 0.85);
  margin-bottom: 1.5rem;
}

.hero-kicker {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #9ca3af;
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: clamp(1.9rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 0.6rem;
}

.hero-subtitle {
  font-size: 0.95rem;
  color: #9ca3af;
  max-width: 36rem;
  margin-bottom: 1rem;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.8rem;
}

.metric-pill {
  border-radius: 999px;
  border: 1px solid #1f2937;
  padding: 0.35rem 0.65rem;
  background: rgba(15, 23, 42, 0.8);
  color: #9ca3af;
}

/* hero right card */

.hero-card {
  background: rgba(15, 23, 42, 0.9);
  border-radius: 0.85rem;
  border: 1px solid #1f2937;
  padding: 1rem 1rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.hero-card-title {
  font-size: 0.95rem;
  font-weight: 600;
}

.hero-card-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: #9ca3af;
}

.hero-card-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  border: 1px solid rgba(34, 197, 94, 0.3);
  padding: 0.3rem 0.65rem;
  font-size: 0.75rem;
  color: #bbf7d0;
  background: rgba(22, 163, 74, 0.08);
}

/* ===========================
   Sections / Comparison
   =========================== */

.section {
  margin-top: 1.75rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.section-subtitle {
  font-size: 0.85rem;
  color: #9ca3af;
}

.comparison-table-wrap {
  border-radius: 0.75rem;
  border: 1px solid #1f2937;
  overflow: hidden;
  background: #020617;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.75);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.comparison-table thead {
  background: #0b1120;
}

.comparison-table th,
.comparison-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid #1f2937;
}

.comparison-table th {
  font-weight: 600;
  text-align: left;
  color: #e5e7eb;
}

.comparison-table tbody tr:nth-child(even) {
  background: rgba(15, 23, 42, 0.6);
}

.comparison-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
}

.comparison-badge-good {
  background: rgba(22, 163, 74, 0.15);
  color: #bbf7d0;
  border: 1px solid #16a34a;
}

.comparison-badge-warn {
  background: rgba(234, 179, 8, 0.1);
  color: #facc15;
  border: 1px solid rgba(250, 204, 21, 0.6);
}

.comparison-badge-bad {
  background: rgba(239, 68, 68, 0.12);
  color: #fecaca;
  border: 1px solid #ef4444;
}

/* ===========================
   Tool Tabs (Tools Shell)
   =========================== */

.tool-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
  margin-bottom: 0.75rem;
}

.tool-tab {
  font-size: 0.8rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  border: 1px solid #1f2937;
  background: rgba(15, 23, 42, 0.9);
  color: #9ca3af;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: background 0.12s ease, border-color 0.12s ease,
    transform 0.06s ease;
}

.tool-tab:hover {
  background: rgba(15, 23, 42, 0.95);
  border-color: #374151;
  transform: translateY(-1px);
}

.tool-tab-active {
  border-color: var(--brand-green);
  background: rgba(22, 163, 74, 0.15);
  color: #bbf7d0;
  box-shadow: 0 12px 26px rgba(22, 163, 74, 0.5);
}

/* Only show active tool view */
.tool-view {
  display: none;
  margin-top: 0.75rem;
}
.tool-view-active {
  display: block;
}

/* ===========================
   PDF Studio Layout
   =========================== */

.pdfstudio-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border-radius: 0.75rem;
  border: 1px solid #1f2937;
  background: linear-gradient(90deg, #020617, #020617, #0b1120);
  margin-bottom: 0.85rem;
}

.pdfstudio-topbar-left,
.pdfstudio-topbar-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pdfstudio-topbar-center {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.pdfstudio-filename {
  font-size: 0.85rem;
  color: #e5e7eb;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pdfstudio-pageinfo {
  font-size: 0.75rem;
  color: #9ca3af;
}

/* body grid: thumbnails / canvas / tools */

.pdfstudio-body {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 260px;
  gap: 0.75rem;
  align-items: flex-start;
}

/* Left sidebar (thumbnails) */

.pdfstudio-sidebar {
  border-radius: 0.75rem;
  border: 1px solid #1f2937;
  background: #020617;
  padding: 0.5rem;
  max-height: calc(100vh - 220px);
  overflow-y: auto;
}

.pdfstudio-sidebar-empty {
  text-align: center;
  font-size: 0.8rem;
  color: #6b7280;
}

.pdfstudio-thumb {
  border-radius: 0.5rem;
  border: 1px solid #111827;
  padding: 0.25rem;
  margin-bottom: 0.4rem;
  background: #020617;
  cursor: pointer;
  transition: border-color 0.12s ease, transform 0.06s ease,
    box-shadow 0.12s ease;
}

.pdfstudio-thumb:hover {
  border-color: #4b5563;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.8);
}

.pdfstudio-thumb-canvas {
  width: 100%;
  display: block;
}

/* center canvas */

.pdfstudio-canvas-wrap {
  border-radius: 0.75rem;
  border: 1px solid #1f2937;
  background: radial-gradient(circle at top left, #0b1120, #020617 55%);
  padding: 0.5rem;
  min-height: 60vh;
  overflow: auto;
}

.pdfstudio-canvas-container {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.pdfstudio-page-canvas {
  border-radius: 0.75rem;
  border: 1px solid #111827;
  background: #020617;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.9);
}

.pdfstudio-empty-state {
  text-align: center;
  color: #9ca3af;
  font-size: 0.85rem;
  padding: 2rem 1rem;
}

/* right tools */

.pdfstudio-tools {
  border-radius: 0.75rem;
  border: 1px solid #1f2937;
  background: #020617;
  padding: 0.6rem 0.7rem 0.7rem;
  font-size: 0.8rem;
  max-height: calc(100vh - 220px);
  overflow-y: auto;
}

.pdfstudio-tools h4 {
  margin: 0 0 0.4rem;
  font-size: 0.9rem;
}

.pdfstudio-tool-group {
  margin-bottom: 0.75rem;
}

.group-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #6b7280;
  margin-bottom: 0.25rem;
}

.tool-btn {
  width: 100%;
  border-radius: 0.6rem;
  border: 1px solid #1f2937;
  padding: 0.35rem 0.6rem;
  margin-bottom: 0.3rem;
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
  font-size: 0.8rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease,
    transform 0.06s ease;
}
.tool-btn:hover {
  border-color: #4b5563;
  background: rgba(15, 23, 42, 0.98);
  transform: translateY(-1px);
}
.tool-btn.tool-active {
  border-color: var(--brand-green);
  background: rgba(22, 163, 74, 0.15);
  color: #bbf7d0;
  box-shadow: 0 10px 25px rgba(22, 163, 74, 0.4);
}

.pdfstudio-hint {
  margin-top: 0.4rem;
  font-size: 0.75rem;
  color: #6b7280;
}

/* ===========================
   Quick Sign / Viewer (old)
   =========================== */

.viewer-body {
  padding: 0.75rem;
  background: radial-gradient(circle at top left, #0b1120, #020617 55%);
  position: relative; /* for absolute overlay */
  min-height: 110vh;
}

.pdf-placeholder {
  border-radius: 0.75rem;
  border: 1px dashed #374151;
  padding: 1.1rem;
  text-align: center;
  color: #9ca3af;
  font-size: 0.85rem;
}

.pdf-frame {
  margin-top: 0.75rem;
  width: 100%;
  height: 220vh; /* larger preview for easier placement */
  border-radius: 0.75rem;
  border: 1px solid #111827;
  background: #020617;
}

/* Signature overlay */

.signature-overlay {
  position: absolute;
  top: 60%;
  left: 60%;
  transform: translate(-50%, -50%);
  cursor: move;
  z-index: 10;
  user-select: none;
}

.signature-card {
  background: rgba(15, 23, 42, 0.9);
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  padding: 0.15rem 0.75rem 0.25rem;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.8);
}

.signature-text {
  font-size: 1.3rem;
  font-weight: 400;
  font-family: "Segoe Script", "Lucida Handwriting", "Brush Script MT",
    cursive;
  color: var(--brand-light);
  white-space: nowrap;
}

.signature-hint {
  font-size: 0.7rem;
  color: #6b7280;
}

/* ===========================
   Footer
   =========================== */

.app-footer {
  padding: 0.65rem 1.5rem;
  border-top: 1px solid #1f2937;
  color: #6b7280;
  font-size: 0.75rem;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  background: #020617;
}

.footer-meta {
  color: #4b5563;
}

/* Divider */

.section-divider {
  border: 0;
  border-top: 1px solid #1f2937;
  margin: 0.5rem 0 0.75rem;
}

/* ===========================
   Responsive
   =========================== */

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .pdfstudio-body {
    grid-template-columns: 200px minmax(0, 1fr);
    grid-template-rows: auto auto;
    grid-auto-flow: row;
  }

  .pdfstudio-tools {
    grid-column: 1 / -1;
    max-height: none;
  }
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .pdf-frame {
    height: 110vh;
  }
}

@media (max-width: 600px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .app-main {
    padding: 0.75rem;
  }

  .hero {
    padding: 1.1rem 1.1rem;
  }

  .pdfstudio-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .pdfstudio-sidebar {
    max-height: 220px;
  }
}