:root {
  --font-body: "Trebuchet MS", "Verdana", "Tahoma", sans-serif;
  --font-display: "Georgia", "Garamond", "Times New Roman", serif;
  --bg-main: #d8c2ff;
  --bg-gradient-start: #cbb0ff;
  --bg-gradient-end: #bfa0ff;
  --accent-primary: #5a5fd6;
  --accent-primary-strong: #4b4fbf;
  --accent-primary-soft: rgba(122, 92, 238, 0.18);
  --accent-secondary: #6a5bd6;
  --accent-secondary-strong: #5847b8;
  --accent-secondary-soft: rgba(144, 100, 245, 0.16);
  --text-main: #1f2333;
  --text-muted: #60657a;
  --card-bg: #f8f3ff;
  --border-soft: rgba(31, 35, 51, 0.12);
  --shadow-soft: 0 14px 30px rgba(31, 35, 51, 0.12);
  --bg-1: var(--bg-main);
  --bg-2: var(--bg-gradient-start);
  --bg-3: var(--bg-gradient-end);
  --ink-900: var(--text-main);
  --ink-700: #323b50;
  --ink-500: var(--text-muted);
  --muted: var(--text-muted);
  --surface: var(--card-bg);
  --surface-2: #eee6ff;
  --border: var(--border-soft);
  --white: var(--card-bg);
  --accent: var(--accent-primary);
  --accent-strong: var(--accent-primary-strong);
  --accent-soft: var(--accent-primary-soft);
  --accent-glow-1: rgba(122, 92, 238, 0.3);
  --accent-glow-2: rgba(144, 100, 245, 0.26);
  --shadow: 0 20px 45px rgba(31, 35, 51, 0.12);
  --shadow-accent: 0 12px 22px rgba(90, 95, 214, 0.28);
  --tab-active-shadow: 0 10px 18px rgba(90, 95, 214, 0.28);
  --preset-shadow: 0 8px 16px rgba(90, 95, 214, 0.22);
  --success: #0f6f5c;
  --success-border: rgba(15, 111, 92, 0.35);
  --success-bg: rgba(15, 111, 92, 0.12);
  --error: #b42318;
  --error-border: rgba(180, 35, 24, 0.35);
  --error-bg: rgba(180, 35, 24, 0.12);
  --table-stripe: rgba(90, 95, 214, 0.05);
  --primary-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --primary-gradient-hover: linear-gradient(135deg, var(--accent-primary-strong), var(--accent-secondary-strong));
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink-900);
  background-color: var(--bg-main);
  background-image:
    radial-gradient(1100px 580px at -10% 0%, var(--accent-primary-soft), transparent 60%),
    radial-gradient(900px 520px at 110% -10%, var(--accent-secondary-soft), transparent 60%),
    linear-gradient(145deg, var(--bg-gradient-start), var(--bg-gradient-end));
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3 {
  font-family: var(--font-display);
  margin: 0;
}

p {
  margin: 0;
}

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

a:hover {
  color: var(--accent-strong);
}

.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 20px 72px;
  position: relative;
}

.page::before,
.page::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  z-index: -1;
}

.page::before {
  top: -160px;
  right: -120px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle at 40% 40%, var(--accent-glow-1), transparent 70%);
}

.page::after {
  bottom: -180px;
  left: -160px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle at 50% 50%, var(--accent-glow-2), transparent 75%);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ink-500);
  margin-bottom: 12px;
}

.hero {
  margin-bottom: 28px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 24px;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.2rem, 3.8vw, 3.4rem);
  margin-bottom: 10px;
}

.subtitle {
  font-size: 1.1rem;
  color: var(--ink-700);
  margin-bottom: 12px;
}

.hero-note {
  color: var(--muted);
  margin-bottom: 6px;
  font-size: 0.98rem;
}

.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-soft);
}

.hero-card h2 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.hero-list {
  margin: 0 0 10px 18px;
  color: var(--ink-700);
}

.tool-area {
  margin-top: 10px;
}

.tabs {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.top-tabs {
  margin-bottom: 18px;
}

.tab-button {
  border: 1px solid transparent;
  background: transparent;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--ink-700);
  cursor: pointer;
  min-height: 40px;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.tab-button.is-active {
  background: var(--primary-gradient);
  color: var(--white);
  border-color: var(--accent-strong);
  font-weight: 700;
  box-shadow: var(--tab-active-shadow);
}

.tab-content {
  margin-top: 6px;
}

.normalize-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.tool-card {
  padding: 24px;
}

.tool-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.preset-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  margin-bottom: 18px;
}

.preset-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.preset-button {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--ink-700);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.preset-button:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.preset-button.is-selected,
.preset-button[aria-pressed="true"] {
  border-color: var(--accent-strong);
  background: var(--primary-gradient);
  color: var(--white);
  font-weight: 700;
  box-shadow: var(--preset-shadow);
}

form {
  margin: 0;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink-900);
}

input:focus,
select:focus,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 2px;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

input[type="file"] {
  padding: 8px;
}

input[type="file"]::file-selector-button {
  border: 1px solid var(--border);
  background: var(--surface-2);
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  margin-right: 10px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 12px;
}

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

.label {
  font-weight: 600;
  color: var(--ink-900);
}

.helper,
.help {
  font-size: 0.88rem;
  color: var(--ink-500);
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.form-note {
  color: var(--ink-500);
  font-size: 0.92rem;
}

.primary,
.secondary {
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  border: none;
}

.primary {
  background: var(--primary-gradient);
  color: var(--white);
  padding: 12px 22px;
  box-shadow: var(--shadow-accent);
  transition: background 0.2s ease, transform 0.2s ease;
}

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

.secondary {
  background: transparent;
  color: var(--ink-700);
  border: 1px solid var(--border);
  padding: 10px 18px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.secondary:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.action-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.status-group {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.status {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px dashed var(--border);
  background: var(--surface-2);
  color: var(--ink-700);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.status[data-state="working"] {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.status[data-state="success"] {
  border-color: var(--success-border);
  background: var(--success-bg);
  color: var(--success);
}

.status[data-state="error"] {
  border-color: var(--error-border);
  background: var(--error-bg);
  color: var(--error);
}

.download-link {
  align-self: flex-start;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 600;
}

.sample-card {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: linear-gradient(130deg, var(--accent-soft), var(--accent-secondary-soft));
}

.sample-card h3 {
  font-size: 1.2rem;
}

.how-card {
  padding: 20px 22px;
  margin-top: 18px;
  box-shadow: var(--shadow-soft);
}

.how-list {
  margin: 12px 0 0 20px;
  color: var(--ink-700);
  line-height: 1.6;
  font-size: 0.98rem;
}

.tab-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.inline-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: end;
  margin-top: 12px;
}

.tags-fields {
  margin-top: 16px;
}

#history-table-wrapper {
  margin-top: 12px;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
}

#history-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 0.95rem;
}

#history-table th,
#history-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

#history-table thead th {
  background: var(--surface-2);
  color: var(--ink-900);
  font-weight: 700;
}

#history-table tbody tr:nth-child(even) {
  background: var(--table-stripe);
}

.span-2 {
  grid-column: span 2;
}

@media (max-width: 980px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .normalize-grid {
    grid-template-columns: 1fr;
  }

  .tabs {
    width: 100%;
    flex-wrap: wrap;
  }
}

@media (max-width: 720px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: span 1;
  }

  .inline-form {
    grid-template-columns: 1fr;
  }

  .form-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .form-actions .primary,
  .form-actions .secondary {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto;
  }
}


/* ===== i18n Language Switch + Hero layout fixes ===== */

.hero {
  position: relative; /* чтобы lang-switch мог быть absolute внутри hero */
}

.hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 28px;
  align-items: start;
  position: relative;
}

/* Плавающий переключатель языка (не влияет на layout) */
.lang-switch {
  position: absolute;
  top: 16px;
  right: 16px;
  display: inline-flex;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  z-index: 5;
}

.lang-btn {
  border: 0;
  background: transparent;
  padding: 7px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.lang-btn:hover {
  background: rgba(0, 0, 0, 0.06);
}

.lang-btn.is-active {
  background: rgba(0, 0, 0, 0.10);
}

/* Чуть лучше читабельность в hero */
.hero-copy {
  max-width: 680px;
}

.hero-card {
  max-width: 420px;
  width: 100%;
  justify-self: end;
}

/* Responsive: всё в одну колонку */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-card {
    justify-self: start;
    max-width: 100%;
  }
  .lang-switch {
    top: 12px;
    right: 12px;
  }
}


/* ===== Custom file picker (RU/EN friendly) ===== */
.file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.file-picker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.file-button {
  border: 1px solid rgba(0, 0, 0, 0.12);
  background: rgba(255, 255, 255, 0.65);
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
}

.file-button:hover {
  background: rgba(255, 255, 255, 0.85);
}

.file-name {
  opacity: 0.85;
  font-size: 0.95rem;
}