/* ===== DESIGN TOKENS ===== */
:root {
  --accent: #e8372a;
  --accent-dark: #c42d21;
  --accent-light: rgba(232, 55, 42, 0.08);
  --font-heading: "Sora", sans-serif;
  --font-body: "DM Sans", sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --transition: 0.2s ease;
  --max-w: 1140px;
  --nav-h: 64px;
}
[data-theme="light"] {
  --bg: #f8f7f5;
  --surface: #ffffff;
  --surface-2: #f2f1ef;
  --surface-3: #eae9e6;
  --border: #e4e2de;
  --text: #1a1917;
  --text-2: #4a4845;
  --text-3: #7a7875;
  --nav-bg: rgba(248, 247, 245, 0.92);
}
[data-theme="dark"] {
  --bg: #111110;
  --surface: #1c1b1a;
  --surface-2: #252422;
  --surface-3: #2e2c2a;
  --border: #333230;
  --text: #f0ede8;
  --text-2: #b5b0a8;
  --text-3: #7a7875;
  --nav-bg: rgba(17, 17, 16, 0.92);
}

/* ===== RESET ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition:
    background var(--transition),
    color var(--transition);
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  cursor: pointer;
  font-family: var(--font-body);
  border: none;
  background: none;
}
ul {
  list-style: none;
}

/* ===== UTILS ===== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* ===== NAVBAR ===== */
.navbar {
  position: relative;
  display: flex;
  top: 0;
  bottom: 15px;
  z-index: 900;
  height: var(--nav-h);
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
  gap: 32px;
}
.navbar__inner {
  display: flex;
  align-items: center;
  gap: 1px;
  height: 100%;
}
.navbar__logo {
  display: flex;
  align-items: left;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.navbar__logo img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  align-content: flex-start;
}
.navbar__logo-text {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}
.navbar__logo-text span {
  color: var(--accent);
}
.navbar__divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
}
.navbar__section-links {
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
.navbar__section-links::-webkit-scrollbar {
  display: none;
}
.navbar__section-links a {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-3);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition:
    color var(--transition),
    background var(--transition);
}
.navbar__section-links a:hover {
  color: var(--text);
  background: var(--surface-2);
}
.navbar__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.navbar__home-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: all var(--transition);
}
.navbar__home-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  transition: all var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.hamburger-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  transition: all var(--transition);
  flex-shrink: 0;
}
.hamburger-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Drawer */
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.drawer-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.drawer {
  position: fixed;
  top: 0;
  right: -320px;
  bottom: 0;
  z-index: 201;
  width: 300px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 24px;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}
.drawer.open {
  right: 0;
}
.drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.drawer__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}
.drawer__close {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  background: var(--surface-2);
  transition: all var(--transition);
}
.drawer__close:hover {
  color: var(--accent);
}
.drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.drawer__nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-2);
  transition: all var(--transition);
}
.drawer__nav a:hover {
  color: var(--accent);
  background: var(--accent-light);
}
.drawer__nav a .nav-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  transition: background var(--transition);
}
.drawer__nav a:hover .nav-icon {
  background: var(--accent-light);
}
.drawer__divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb__item a {
  font-size: 0.8rem;
  color: var(--text-3);
  transition: color var(--transition);
}
.breadcrumb__item a:hover {
  color: var(--accent);
}
.breadcrumb__item span {
  font-size: 0.8rem;
  color: var(--text);
  font-weight: 500;
}
.breadcrumb__sep {
  color: var(--text-3);
  font-size: 0.75rem;
}

/* ===== HERO ===== */
.hero {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 48px 0 40px;
}
.hero__inner {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
  border: 1px solid rgba(232, 55, 42, 0.2);
}
.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.hero__title .accent {
  color: var(--accent);
}
.hero__sub {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 520px;
  margin: 0 auto 24px;
}
.hero__badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 4px 11px;
  border-radius: 100px;
}
.pill svg {
  color: #22c55e;
}

/* ===== TOOL AREA ===== */
.tool-section {
  padding: 40px 0 60px;
}

/* Upload Zone */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 52px 24px;
  text-align: center;
  transition: all 0.2s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.upload-zone::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 0%,
    var(--accent-light) 0%,
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.3s;
}
.upload-zone:hover {
  border-color: var(--accent);
}
.upload-zone:hover::before {
  opacity: 1;
}
.upload-zone.drag-over {
  border-color: var(--accent);
  border-style: solid;
  background: var(--accent-light);
}
.upload-zone__icon {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: var(--accent-light);
  border: 2px solid rgba(232, 55, 42, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  position: relative;
  z-index: 1;
}
.upload-zone__icon svg {
  color: var(--accent);
}
.upload-zone__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  position: relative;
  z-index: 1;
}
.upload-zone__sub {
  font-size: 0.88rem;
  color: var(--text-3);
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  z-index: 1;
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(232, 55, 42, 0.3);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-2);
  color: var(--text-2);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}
.upload-zone__formats {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 12px;
  position: relative;
  z-index: 1;
}
#fileInput {
  display: none;
}

/* ===== TOOL WORKSPACE ===== */
.workspace {
  display: none;
}
.workspace.active {
  display: block;
}

/* File Info Bar */
.file-info-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 20px;
}
.file-info-bar__icon {
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.file-info-bar__meta {
  flex: 1;
  min-width: 0;
}
.file-info-bar__name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.file-info-bar__size {
  font-size: 0.78rem;
  color: var(--text-3);
}
.file-info-bar__actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* Split Mode Tabs */
.mode-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px;
  margin-bottom: 20px;
}
.mode-tab {
  flex: 1;
  min-width: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  border: 1px solid transparent;
  text-align: center;
}
.mode-tab:hover {
  color: var(--text);
  background: var(--surface);
}
.mode-tab.active {
  color: var(--accent);
  background: var(--surface);
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

/* Config Panel */
.config-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 20px;
}
.config-panel__mode {
  display: none;
}
.config-panel__mode.active {
  display: block;
}
.config-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 8px;
}
.config-input {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  outline: none;
}
.config-input:focus {
  border-color: var(--accent);
  background: var(--surface);
}
.config-hint {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 6px;
}
.config-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.number-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.number-stepper {
  display: flex;
  align-items: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.number-stepper button {
  width: 36px;
  height: 38px;
  font-size: 1.1rem;
  color: var(--text-2);
  border: none;
  background: none;
  transition: all var(--transition);
}
.number-stepper button:hover {
  color: var(--accent);
  background: var(--accent-light);
}
.number-stepper input {
  width: 52px;
  height: 38px;
  text-align: center;
  border: none;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  outline: none;
}
.config-info-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--accent-light);
  border: 1px solid rgba(232, 55, 42, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-top: 14px;
}
.config-info-box svg {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}
.config-info-box p {
  font-size: 0.82rem;
  color: var(--text-2);
}

/* Page Thumbnails */
.pages-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.pages-header h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}
.pages-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.btn-xs {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-2);
  padding: 5px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: all var(--transition);
}
.btn-xs:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.pages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 12px;
  max-height: 340px;
  overflow-y: auto;
  padding: 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.page-card {
  position: relative;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--surface-2);
  aspect-ratio: 3/4;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.page-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.page-card.selected {
  border-color: var(--accent);
}
.page-card.selected::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(232, 55, 42, 0.08);
}
.page-card__canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.page-card__num {
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.68rem;
  font-weight: 700;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  padding: 1px 7px;
  border-radius: 100px;
  z-index: 2;
  white-space: nowrap;
}
.page-card__check {
  position: absolute;
  top: 5px;
  right: 5px;
  z-index: 3;
  width: 20px;
  height: 20px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.page-card.selected .page-card__check {
  background: var(--accent);
  border-color: var(--accent);
}
.page-card.selected .page-card__check svg {
  display: block;
}
.page-card__check svg {
  display: none;
  color: #fff;
}
.page-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--text-3);
  font-size: 0.75rem;
}
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Output Config */
.output-config {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.output-config__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
}
.toggle-group {
  display: flex;
  gap: 6px;
}
.toggle-opt {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-3);
  padding: 6px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  transition: all var(--transition);
}
.toggle-opt.active {
  color: var(--accent);
  background: var(--accent-light);
  border-color: rgba(232, 55, 42, 0.35);
}
.toggle-opt:hover {
  color: var(--text);
}

/* Action Bar */
.action-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.action-bar__info {
  font-size: 0.85rem;
  color: var(--text-2);
}
.action-bar__info strong {
  color: var(--accent);
}
.action-bar__btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.btn-split {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-split:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(232, 55, 42, 0.35);
}
.btn-split:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Progress */
.progress-wrap {
  display: none;
  margin-top: 16px;
}
.progress-wrap.active {
  display: block;
}
.progress-bar-track {
  height: 6px;
  background: var(--surface-2);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 8px;
}
.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  transition: width 0.3s ease;
  width: 0%;
}
.progress-text {
  font-size: 0.78rem;
  color: var(--text-3);
}

/* Results */
.results-section {
  display: none;
  margin-top: 28px;
}
.results-section.active {
  display: block;
}
.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.results-header h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all var(--transition);
}
.result-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.result-card__icon {
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.result-card__meta {
  flex: 1;
  min-width: 0;
}
.result-card__name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.result-card__size {
  font-size: 0.72rem;
  color: var(--text-3);
  margin-top: 2px;
}
.result-card__dl {
  width: 32px;
  height: 32px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
}
.result-card__dl:hover {
  background: var(--accent-dark);
  transform: scale(1.05);
}
.results-download-all {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}
.results-download-all:hover {
  background: var(--accent-dark);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.88rem;
  color: var(--text);
  font-weight: 500;
  max-width: 340px;
  width: calc(100% - 32px);
}
.toast.show {
  transform: translateX(-50%) translateY(0);
}
.toast.success .toast-icon {
  color: #22c55e;
}
.toast.error .toast-icon {
  color: var(--accent);
}

/* Inline Links */
.text-link {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(232, 55, 42, 0.4);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: all var(--transition);
}
.text-link:hover {
  text-decoration-color: var(--accent);
  background: var(--accent-light);
}

/* ===== CONTENT SECTIONS ===== */
.section {
  padding: 64px 0;
}
.section + .section {
  border-top: 1px solid var(--border);
}
.section__header {
  text-align: center;
  max-width: 580px;
  margin: 0 auto 48px;
}
.section__tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.section__sub {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* What Is It */
.what-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.what-body p {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 14px;
}
.what-visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.what-visual__row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.what-visual__arrow {
  color: var(--text-3);
  font-size: 1.1rem;
}
.what-visual__pages {
  display: flex;
  gap: 6px;
}
.mini-page {
  width: 24px;
  height: 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  font-weight: 700;
  color: var(--text-3);
}
.mini-page.red {
  background: var(--accent-light);
  border-color: rgba(232, 55, 42, 0.3);
  color: var(--accent);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.25s ease;
}
.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.feature-card__icon {
  width: 48px;
  height: 48px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 14px;
}
.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.feature-card p {
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.steps::before {
  content: "";
  position: absolute;
  top: 30px;
  left: calc(12.5% + 24px);
  right: calc(12.5% + 24px);
  height: 2px;
  background: var(--border);
}
.step {
  text-align: center;
  position: relative;
}
.step__num {
  width: 52px;
  height: 52px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
  margin: 0 auto 14px;
  position: relative;
  z-index: 1;
  transition: all 0.25s ease;
}
.step:hover .step__num {
  border-color: var(--accent);
  background: var(--accent-light);
}
.step h3 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.step p {
  font-size: 0.82rem;
  color: var(--text-2);
  line-height: 1.6;
}

/* Benefits */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: all var(--transition);
}
.benefit-item:hover {
  border-color: var(--accent);
}
.benefit-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.benefit-item h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.benefit-item p {
  font-size: 0.83rem;
  color: var(--text-2);
  line-height: 1.6;
}

/* FAQ */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  background: var(--surface);
  transition: border-color var(--transition);
}
.faq-item.open {
  border-color: var(--accent);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text);
}
.faq-q svg {
  flex-shrink: 0;
  color: var(--text-3);
  transition: transform 0.25s ease;
}
.faq-item.open .faq-q svg {
  transform: rotate(45deg);
  color: var(--accent);
}
.faq-a {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.7;
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.3s ease,
    padding 0.3s ease;
}
.faq-item.open .faq-a {
  max-height: 200px;
  padding: 0 20px 16px;
}

/* Related Tools */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all var(--transition);
  text-decoration: none;
}
.tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.tool-card__icon {
  width: 44px;
  height: 44px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.tool-card h3 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}
.tool-card p {
  font-size: 0.8rem;
  color: var(--text-2);
  line-height: 1.55;
}
.tool-card__arrow {
  font-size: 0.8rem;
  color: var(--accent);
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition);
  padding: 5px;
}
.tool-card:hover .tool-card__arrow {
  transform: translateY(-5px);
  transition: 0.2s ease;
}

/* Contact */
.contact-strip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
}
.contact-strip h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}
.contact-strip p {
  font-size: 0.95rem;
  color: var(--text-2);
  margin-bottom: 24px;
}
.contact-strip__email {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 600;
  font-size: 1rem;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition);
}
.contact-strip__email:hover {
  border-color: var(--accent);
}

/* Footer */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer__brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  margin-bottom: 10px;
}
.footer__brand-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.footer__brand-name span {
  color: var(--accent);
}
.footer__brand p {
  font-size: 0.83rem;
  color: var(--text-3);
  line-height: 1.65;
  max-width: 240px;
}
.footer__col h4 {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.footer__col ul li {
  margin-bottom: 8px;
}
.footer__col ul li a {
  font-size: 0.83rem;
  color: var(--text-3);
  transition: color var(--transition);
}
.footer__col ul li a:hover {
  color: var(--accent);
}
.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer__copy {
  font-size: 0.78rem;
  color: var(--text-3);
}
.footer__copy a {
  color: var(--text-3);
  transition: color var(--transition);
}
.footer__copy a:hover {
  color: var(--accent);
}
.footer__badges {
  display: flex;
  gap: 8px;
}
.footer__badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-3);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

/* Back to Top */
.back-top {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 80;
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all 0.3s ease;
}
.back-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.back-top:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

/* Scroll reveal */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
}
.js .reveal.revealed {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .what-grid {
    grid-template-columns: 1fr;
  }
  .what-visual {
    display: none;
  }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .navbar__section-links {
    display: none;
  }
  .navbar__divider {
    display: none;
  }
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps::before {
    display: none;
  }
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 36px 0 28px;
  }
  .config-row {
    grid-template-columns: 1fr;
  }
  .action-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .action-bar__btns {
    width: 100%;
  }
  .btn-split {
    width: 100%;
    justify-content: center;
  }
}
@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .tools-grid {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
  }
  .mode-tab {
    min-width: unset;
    font-size: 0.8rem;
    padding: 12px 10px; /* Increased height for tap targets */
  }
  .pages-grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  }
  .results-grid {
    grid-template-columns: 1fr;
  }
  .contact-strip {
    padding: 32px 20px;
  }
  .hero__title {
    font-size: 1.55rem;
  }
}