/* ============================================================
   TinyTools — Global Stylesheet
   Shared across all tool pages.
============================================================ */

/* ============================================================
   DESIGN SYSTEM — CSS Variables
============================================================ */
:root {
  /* Colors: surfaces */
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-secondary: #f8f8f8;

  /* Colors: borders */
  --border: #e6eaf0;
  --border-strong: #bbbbbb;
  --border-focus: #2563eb;

  /* Colors: text */
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #94a3b8;

  /* Colors: brand / accent */
  --accent: #2563eb;
  --accent-light: #eff6ff;
  --accent-hover: #1d4ed8;

  /* Colors: status */
  --success: #15803d;
  --success-bg: #f0fdf4;
  --error: #b42318;
  --error-bg: #fef3f2;

  /* Typography */
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Type scale */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-md:   1.125rem;
  --text-lg:   1.25rem;
  --text-xl:   1.5rem;
  --text-2xl:  1.875rem;
  --text-3xl:  2.25rem;
  --text-4xl:  3rem;

  /* Radius */
  --radius:    12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07), 0 1px 4px rgba(0, 0, 0, 0.04);

  /* Motion */
  --transition: 0.1s ease;
}

/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ============================================================
   LAYOUT CONTAINERS
============================================================ */
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

.container--wide {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   HEADER & GLOBAL NAV
============================================================ */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 16px 0;
  position: relative;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 24px;
  position: relative;
}

.site-header__badge {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--text-sm);
  color: var(--text-muted);
  pointer-events: none;
}

/* ---- Nav (far right) ---- */
.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown__trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 12px;
  font-size: var(--text-sm);
  font-weight: 500;
  font-family: var(--font-body);
  color: var(--text-secondary);
  background: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.nav-dropdown__trigger:hover,
.nav-dropdown__trigger:focus-visible,
.nav-dropdown[data-open] .nav-dropdown__trigger {
  background: var(--surface-secondary);
  color: var(--text-primary);
  outline: none;
}

.nav-dropdown__chevron {
  transition: transform var(--transition);
  color: var(--text-muted);
}

.nav-dropdown[data-open] .nav-dropdown__chevron {
  transform: rotate(180deg);
}

.nav-dropdown__menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  min-width: 210px;
  padding: 6px;
  z-index: 200;
}

.nav-dropdown[data-open] .nav-dropdown__menu {
  display: block;
}

.nav-dropdown__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
}

.nav-dropdown__item:hover {
  background: var(--surface-secondary);
  color: var(--text-primary);
  text-decoration: none;
}

.nav-dropdown__item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Active page indicator */
.nav-dropdown__item--active {
  color: var(--accent);
  font-weight: 600;
}

.nav-dropdown__item--active::after {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---- Mobile: hamburger (hidden by default) ---- */
.nav-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0;
  background: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  color: var(--text-primary);
}

.nav-burger:hover,
.nav-burger:focus-visible {
  background: var(--surface-secondary);
  outline: none;
}

.nav-burger__line {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ---- Mobile drawer overlay & panel ---- */
.nav-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  max-width: 85vw;
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
  z-index: 160;
  transform: translateX(100%);
  transition: transform 0.25s ease;
  overflow: auto;
}

.nav-drawer__inner {
  padding: 24px;
  padding-top: 56px;
}

.nav-drawer__close {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-secondary);
}

.nav-drawer__close:hover {
  background: var(--surface-secondary);
  color: var(--text-primary);
}

.nav-drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-drawer__item {
  display: block;
  padding: 12px 14px;
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.nav-drawer__item:hover {
  background: var(--surface-secondary);
  text-decoration: none;
  color: var(--text-primary);
}

.nav-drawer__item--active {
  color: var(--accent);
  font-weight: 600;
}

/* Drawer open state (body class set by JS) */
body.nav-drawer-open {
  overflow: hidden;
}

body.nav-drawer-open .nav-drawer-overlay {
  opacity: 1;
  pointer-events: auto;
}

body.nav-drawer-open .nav-drawer {
  transform: translateX(0);
}

/* Mobile breakpoint: show hamburger, hide dropdown */
@media (max-width: 640px) {
  .site-nav {
    display: none;
  }

  .nav-burger {
    display: flex;
  }
}

/* ============================================================
   HERO
============================================================ */
.hero {
  padding: 64px 0 48px;
  text-align: center;
}

.hero__eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: normal;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.hero__sub {
  font-size: var(--text-md);
  color: var(--text-secondary);
  margin: 0 auto 8px;
  line-height: 1.6;
}

.hero__404 {
  font-size: clamp(4rem, 18vw, 7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text-muted);
  margin: 0 0 8px;
}

/* ============================================================
   TOOL CARD
============================================================ */
.tool-card {
  display: flex;
  flex-direction: column;
  gap: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 40px;
  margin-bottom: 16px;
}

/* ============================================================
   HOME PAGE — TOOL CARDS
============================================================ */
.home-tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.home-tool-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.home-tool-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.home-tool-card__label {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--accent);
}

.home-tool-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: 8px;
  line-height: 1.5;
}

/* ============================================================
   DROP ZONE
============================================================ */
.drop-zone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  position: relative;
  background: var(--surface-secondary);
}

.drop-zone:hover,
.drop-zone:focus-within {
  border-color: var(--accent);
  background: var(--accent-light);
}

.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
}

.upload-icon {
  color: var(--accent);
  margin-bottom: 8px;
}

.drop-zone__label {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.drop-zone__hint {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* Hidden file input sits over the entire drop zone */
.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* ============================================================
   FILE SELECTED INFO (single-file tools, e.g. Split CSV)
============================================================ */
.file-selected-info {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--success-bg);
  border: 1px solid #c3dfc5;
  border-radius: var(--radius);
  margin-top: 16px;
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-weight: 500;
}

.file-selected-info.visible {
  display: flex;
}

.file-selected-info__name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-selected-info__size {
  flex-shrink: 0;
  font-weight: 400;
}

/* ============================================================
   FILE LIST (multi-file tools, e.g. Merge CSV)
============================================================ */
.file-list {
  display: none;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.file-list.visible {
  display: flex;
}

.file-list__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.file-list__header-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.file-list__remove-all {
  background: none;
  border: none;
  padding: 0;
  font-size: var(--text-xs);
  font-family: var(--font-body);
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.file-list__remove-all:hover {
  color: var(--accent-hover);
}

.file-list__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.file-list__count {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.file-list__items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.file-list__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--surface-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  animation: slideIn 0.15s ease both;
}

.file-list__item-name {
  flex: 1;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-list__item-size {
  font-size: var(--text-xs);
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ============================================================
   REMOVE / CLEAR FILE BUTTONS
============================================================ */
.btn-clear-file,
.btn-remove-file {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 2px;
  display: flex;
  align-items: center;
  border-radius: 4px;
  transition: color var(--transition);
  flex-shrink: 0;
}

.btn-clear-file:hover,
.btn-remove-file:hover {
  color: var(--error);
}

/* ============================================================
   FORM FIELDS
============================================================ */
.form-group {
  margin-top: 24px;
}

/* Tool card uses gap for spacing; form-groups inside it don't need top margin */
.tool-card .form-group {
  margin-top: 0;
}

.form-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 12px;
}

.form-label-row .form-label {
  margin-bottom: 0;
}

.clear-link {
  font-size: var(--text-sm);
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
  flex-shrink: 0;
}

.clear-link:hover {
  text-decoration: underline;
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.form-hint,
.form-label .form-hint {
  font-weight: 400;
  color: var(--text-muted);
  font-size: var(--text-xs);
}

.form-input {
  width: 100%;
  padding: 12px;
  font-size: var(--text-base);
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-input:hover {
  border-color: var(--border-strong);
}

.form-input:focus {
  outline: none;
  border-color: var(--border-focus);
  background: var(--surface);
}

.form-input::placeholder {
  color: var(--text-muted);
}

textarea.form-input {
  min-height: 160px;
  resize: vertical;
}

/* ============================================================
   PRIMARY BUTTON
============================================================ */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  font-size: var(--text-base);
  font-weight: 700;
  font-family: var(--font-body);
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.2);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.2);
}

.btn-primary:disabled {
  background: #c5c9d0;
  box-shadow: none;
  cursor: not-allowed;
}

/* ============================================================
   SPINNER / PROCESSING STATE
============================================================ */
.spinner {
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}

.spinning .spinner  { display: block; }
.spinning .btn-icon { display: none; }

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

/* ============================================================
   STATUS MESSAGES
============================================================ */
.status-message {
  display: none;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: var(--text-sm);
  line-height: 1.5;
}

.status-message.visible {
  display: flex;
}

.status-message--error {
  background: var(--error-bg);
  border: 1px solid #f4c0c8;
  color: var(--error);
}

.status-message__icon {
  flex-shrink: 0;
  margin-top: 1px;
}

/* ============================================================
   RESULTS SECTION (Split CSV — multiple output files)
============================================================ */
.results-section {
  display: none;
  margin-top: 24px;
}

.results-section.visible {
  display: block;
}

.results-section__heading {
  margin-bottom: 16px;
}

.results-section__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-primary);
}

.results-section__meta {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ============================================================
   RESULT SECTION (Merge CSV — single output file)
============================================================ */
.result-section {
  display: none;
}

.result-section.visible {
  display: block;
}

.result-section__heading {
  margin-bottom: 16px;
}

.result-section__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-primary);
}

.result-section__meta {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: 2px;
}

.result-download {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  animation: slideIn 0.2s ease both;
}

.result-download__filename {
  flex: 1;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-download__meta {
  font-size: var(--text-xs);
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ============================================================
   DOWNLOAD LIST (Split CSV — list of part files)
============================================================ */
.download-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.download-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
  animation: slideIn 0.2s ease both;
}

.download-item:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

.download-item__filename {
  flex: 1;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.download-item__meta {
  font-size: var(--text-xs);
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ============================================================
   DOWNLOAD BUTTONS
============================================================ */

/* Inline download button (used in download list items) */
.download-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--accent);
  padding: 5px 10px;
  border: 1.5px solid var(--accent);
  border-radius: 6px;
  flex-shrink: 0;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
}

.download-link:hover {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}

/* "Download All Files" button (Split CSV) */
.btn-download-all {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin-bottom: 14px;
  padding: 12px 20px;
  font-size: var(--text-sm);
  font-weight: 700;
  font-family: var(--font-body);
  color: var(--accent);
  background: var(--accent-light);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.btn-download-all:hover {
  background: var(--accent);
  color: #fff;
}

/* Single "Download" button (Merge CSV) */
.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: var(--text-sm);
  font-weight: 700;
  font-family: var(--font-body);
  color: var(--accent);
  background: var(--accent-light);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  flex-shrink: 0;
}

.btn-download:hover {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}

/* Secondary button (e.g. Clear) */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--text-primary);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  text-decoration: none;
}

.btn-secondary:hover {
  background: var(--surface-secondary);
  border-color: var(--border);
  color: var(--text-primary);
  text-decoration: none;
}

/* ============================================================
   PRIVACY NOTE
============================================================ */
.privacy-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.privacy-note svg {
  flex-shrink: 0;
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}

/* ============================================================
   CONTENT SECTIONS
============================================================ */
.content-section {
  padding: 56px 0;
}

.content-section + .content-section {
  border-top: 1px solid var(--border);
  padding-top: 52px;
}

.content-section--centered {
  text-align: center;
}

.content-section--centered .section-body {
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: normal;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-body {
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.7;
}

.related-tools-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
}

/* ============================================================
   STEPS
============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--surface-secondary);
  color: var(--text-primary);
  border-radius: 50%;
  font-size: var(--text-base);
  font-weight: 500;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

.step__title {
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--text-primary);
  margin-bottom: 8px;
}

.step__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   BENEFITS
============================================================ */
.benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.benefit {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.benefit__icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--accent-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-top: 2px;
}

.benefit__title {
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--text-primary);
  margin-bottom: 4px;
}

.benefit__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   FAQ
============================================================ */
.faq-list {
  margin-top: 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: var(--surface);
  border: none;
  padding: 16px 20px;
  font-size: var(--text-base);
  font-weight: 400;
  font-family: var(--font-body);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background var(--transition), color var(--transition);
}

.faq-question:hover,
.faq-question[aria-expanded="true"] {
  background: var(--surface-secondary);
}

.faq-chevron {
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-primary);
}

.faq-question[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 20px 16px;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  background: var(--surface-secondary);
}

.faq-answer.open {
  display: block;
}

/* ============================================================
   FOOTER
============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding-bottom: 20px;
  padding-top: 20px;
}

.site-footer__inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.site-footer__copy {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.site-footer__note {
  font-size: var(--text-xs);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ============================================================
   UTILITY
============================================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================================
   ANIMATIONS
============================================================ */
@keyframes slideIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 640px) {
  .container,
  .container--wide,
  .site-header__inner,
  .site-footer__inner {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 600px) {
  .tool-card { padding: 16px; }
}

@media (max-width: 500px) {
  .hero         { padding: 40px 0 32px; }
  .steps        { grid-template-columns: 1fr; }
  .benefits     { grid-template-columns: 1fr; }
  .site-header__badge { display: none; }
}