:root {
  --bg: #ffffff;
  --bg-soft: #f4f6fb;
  --bg-card: #ffffff;
  --text: #12151c;
  --text-muted: #5e6678;
  --border: rgba(18, 21, 28, 0.09);
  --accent: #0b7c7c;
  --accent-2: #5b5ef7;
  --accent-3: #e86a3a;
  --accent-soft: rgba(11, 124, 124, 0.1);
  --accent-glow: rgba(11, 124, 124, 0.22);
  --earn: #0d9b6e;
  --earn-soft: rgba(13, 155, 110, 0.12);
  --price: #5b5ef7;
  --price-soft: rgba(91, 94, 247, 0.1);
  --shadow: 0 14px 44px rgba(18, 21, 28, 0.07);
  --shadow-hover: 0 22px 56px rgba(18, 21, 28, 0.11);
  --radius: 20px;
  --radius-sm: 14px;
  --header-h: 72px;
  --font: "DM Sans", system-ui, sans-serif;
  --font-display: "Instrument Serif", Georgia, serif;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  --scrollbar-thumb: rgba(18, 21, 28, 0.18);
  --scrollbar-thumb-hover: rgba(18, 21, 28, 0.32);
  --scrollbar-track: transparent;
}

[data-theme="dark"] {
  --bg: #0b0d11;
  --bg-soft: #141820;
  --bg-card: #181c24;
  --text: #f2f4f8;
  --text-muted: #9aa3b5;
  --border: rgba(255, 255, 255, 0.09);
  --accent: #3ed9d9;
  --accent-2: #8b8fff;
  --accent-3: #ff8c5a;
  --accent-soft: rgba(62, 217, 217, 0.12);
  --accent-glow: rgba(62, 217, 217, 0.24);
  --earn: #3dd68c;
  --earn-soft: rgba(61, 214, 140, 0.14);
  --price: #8b8fff;
  --price-soft: rgba(139, 143, 255, 0.14);
  --shadow: 0 14px 44px rgba(0, 0, 0, 0.38);
  --shadow-hover: 0 22px 56px rgba(0, 0, 0, 0.48);
  --scrollbar-thumb: rgba(255, 255, 255, 0.16);
  --scrollbar-thumb-hover: rgba(255, 255, 255, 0.28);
}

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

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

/* Modern scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

*::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 999px;
  border: 1px solid transparent;
  background-clip: padding-box;
  transition: background 0.2s ease;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
  background-clip: padding-box;
}

*::-webkit-scrollbar-corner {
  background: transparent;
}

html:hover::-webkit-scrollbar-thumb,
body:hover::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
}

.custom-select__menu,
.lang-picker__menu {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in oklab, var(--accent) 35%, transparent) transparent;
}

.custom-select__menu::-webkit-scrollbar-thumb,
.lang-picker__menu::-webkit-scrollbar-thumb {
  background: color-mix(in oklab, var(--accent) 28%, var(--scrollbar-thumb));
}

.custom-select__menu::-webkit-scrollbar-thumb:hover,
.lang-picker__menu::-webkit-scrollbar-thumb:hover {
  background: color-mix(in oklab, var(--accent) 45%, var(--scrollbar-thumb-hover));
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

body[dir="rtl"] {
  font-family: var(--font), "Segoe UI", Tahoma, sans-serif;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, var(--accent-glow), transparent 55%),
    radial-gradient(ellipse 60% 40% at 95% 20%, rgba(99, 102, 241, 0.08), transparent 50%),
    var(--bg);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--header-h);
  padding: 0 clamp(20px, 4vw, 48px);
  background: color-mix(in oklab, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand__logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(18, 21, 28, 0.12);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand__text strong {
  font-size: 15px;
  font-weight: 700;
}

.brand__text small {
  font-size: 12px;
  color: var(--text-muted);
}

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

/* Language picker */
.lang-picker {
  position: relative;
}

.lang-picker__trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 14px 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(18, 21, 28, 0.04);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.lang-picker__trigger:hover,
.lang-picker.is-open .lang-picker__trigger {
  border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
  box-shadow: 0 6px 20px var(--accent-glow);
}

.lang-picker__globe {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.lang-picker__chev {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  transition: transform 0.25s ease;
}

.lang-picker.is-open .lang-picker__chev {
  transform: rotate(180deg);
}

.lang-picker__menu {
  position: absolute;
  top: calc(100% + 8px);
  inset-inline-end: 0;
  min-width: 168px;
  margin: 0;
  padding: 6px;
  list-style: none;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-hover);
  z-index: 200;
}

.lang-picker__menu li { margin: 0; }

.lang-picker__menu button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  text-align: start;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.lang-picker__menu button:hover {
  background: var(--bg-soft);
}

.lang-picker__menu button.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.theme-toggle {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(18, 21, 28, 0.04);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.theme-toggle:hover {
  border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
  box-shadow: 0 6px 20px var(--accent-glow);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* Layout */
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(32px, 6vw, 72px) clamp(20px, 4vw, 48px) 80px;
}

.section {
  margin-top: clamp(64px, 10vw, 110px);
}

.section__head {
  max-width: 720px;
  margin-bottom: 36px;
}

.section__head h2 {
  background: linear-gradient(120deg, var(--text) 0%, color-mix(in oklab, var(--text) 75%, var(--accent)) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .section__head h2 {
  background: linear-gradient(120deg, #fff 0%, var(--accent) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section__sub {
  margin: 16px 0 0;
  color: var(--text-muted);
  font-size: 1.08rem;
  line-height: 1.7;
  max-width: 62ch;
}

.section__sub strong {
  color: var(--accent);
  font-weight: 700;
}

.card--soft p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 1rem;
}

.card--soft strong {
  color: var(--accent);
  font-weight: 700;
}

.card--accent h3 {
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow--pill {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in oklab, var(--accent) 22%, transparent);
  letter-spacing: 0.08em;
}

.hl-money {
  color: var(--earn);
  font-weight: 800;
}

.hl-brand {
  color: var(--accent);
  font-weight: 700;
}

.hl-price {
  color: var(--price);
  font-weight: 700;
}

h1, h2, h3 {
  margin: 0;
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Hero */
.hero {
  padding-top: 20px;
  max-width: 820px;
}

.hero__title {
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  max-width: 18ch;
}

.hero__lead {
  margin: 24px 0 0;
  max-width: 52ch;
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.hero__lead strong {
  font-weight: 700;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 48px;
}

.stat {
  padding: 22px 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.stat::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 4px 0 0 4px;
}

.stat--earn::before { background: var(--earn); }
.stat--price::before { background: var(--price); }
.stat--lang::before { background: var(--accent-3); }

.stat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.stat strong {
  display: block;
  font-size: 1.85rem;
  letter-spacing: -0.03em;
}

.stat--earn strong { color: var(--earn); }
.stat--price strong { color: var(--price); }
.stat--lang strong { color: var(--accent-3); }

.stat span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), color-mix(in oklab, var(--accent) 70%, #000));
  color: #fff;
  box-shadow: 0 10px 28px var(--accent-glow);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px var(--accent-glow);
}

.btn--ghost {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(18, 21, 28, 0.04);
}

.btn--ghost:hover {
  border-color: color-mix(in oklab, var(--accent) 40%, var(--border));
  color: var(--accent);
}

.btn--submit {
  width: 100%;
  margin-top: 4px;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--earn) 0%, var(--accent) 55%, var(--accent-2) 100%);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 0 12px 32px color-mix(in oklab, var(--earn) 35%, transparent);
  position: relative;
  overflow: hidden;
}

.btn--submit::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.18) 50%, transparent 60%);
  transform: translateX(-120%);
  transition: transform 0.6s ease;
}

.btn--submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px color-mix(in oklab, var(--earn) 42%, transparent);
}

.btn--submit:hover::before {
  transform: translateX(120%);
}

.btn--submit svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.btn--submit:hover svg {
  transform: translateX(4px);
}

.btn--full { width: 100%; }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
}

.card--soft {
  padding: 24px;
  box-shadow: none;
  background: var(--bg-soft);
}

.card--soft:hover { transform: translateY(-2px); }

.card--accent {
  padding: 28px;
  background: linear-gradient(145deg, var(--accent-soft), transparent 70%), var(--bg-card);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.check-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-inline-start: 26px;
  margin-bottom: 10px;
  color: var(--text-muted);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  inset-inline-start: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.step {
  padding: 28px 24px;
}

.step:hover { transform: translateY(-4px); }

.step__num {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

.step h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--text);
}

.step:nth-child(1) .step__num { color: var(--accent); }
.step:nth-child(2) .step__num { color: var(--price); }
.step:nth-child(3) .step__num { color: var(--earn); }

.step p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Highlight */
.highlight {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  padding: 32px;
  align-items: center;
  background: linear-gradient(135deg, var(--accent-soft), transparent 60%), var(--bg-card);
}

.highlight h3 {
  font-size: 1.35rem;
  margin-bottom: 10px;
}

.highlight p {
  margin: 0;
  color: var(--text-muted);
}

.highlight__math {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.math-row {
  text-align: center;
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  min-width: 110px;
}

.math-row span {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
}

.math-row small {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.math-row--you {
  border-color: color-mix(in oklab, var(--accent) 35%, var(--border));
  background: var(--accent-soft);
}

.math-row--you span { color: var(--accent); }

.math-arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
}

.notes {
  margin: 20px 0 0;
  padding-inline-start: 20px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.notes li { margin-bottom: 6px; }

/* Form */
.form {
  padding: clamp(24px, 4vw, 36px);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.field label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.field input,
.field select {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text);
  font: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.field input:hover,
.field select:hover {
  border-color: color-mix(in oklab, var(--accent) 25%, var(--border));
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.field input.invalid {
  border-color: #e74c3c;
}

.custom-select {
  position: relative;
}

.custom-select__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text);
  font: inherit;
  font-size: 15px;
  font-weight: 500;
  text-align: start;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.custom-select__trigger:hover,
.custom-select.is-open .custom-select__trigger {
  border-color: color-mix(in oklab, var(--accent) 40%, var(--border));
  background: var(--bg-card);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.custom-select__trigger.invalid {
  border-color: #e74c3c;
  box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.12);
}

.custom-select__icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
}

.custom-select__icon svg {
  width: 18px;
  height: 18px;
}

.custom-select__text {
  flex: 1;
  min-width: 0;
}

.custom-select__text.is-placeholder {
  color: var(--text-muted);
  font-weight: 500;
}

.custom-select__chev {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.custom-select.is-open .custom-select__chev {
  transform: rotate(180deg);
}

.custom-select__menu {
  position: absolute;
  top: calc(100% + 8px);
  inset-inline: 0;
  margin: 0;
  padding: 8px;
  list-style: none;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-hover);
  z-index: 50;
  max-height: 280px;
  overflow-y: auto;
}

.custom-select__menu li {
  margin: 0;
}

.custom-select__menu button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  text-align: start;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.15s;
}

.custom-select__menu button svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color 0.15s;
}

.custom-select__menu button:hover {
  background: var(--bg-soft);
  transform: translateX(2px);
}

body[dir="rtl"] .custom-select__menu button:hover {
  transform: translateX(-2px);
}

.custom-select__menu button.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.custom-select__menu button.is-active svg {
  color: var(--accent);
}

.field__alert {
  margin: 0 0 12px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(230, 126, 34, 0.1);
  border: 1px solid rgba(230, 126, 34, 0.25);
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.5;
}

[data-theme="dark"] .field__alert {
  background: rgba(230, 126, 34, 0.15);
}

.field--hidden { display: none; }

.consent {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 8px 0 22px;
  font-size: 0.92rem;
  color: var(--text-muted);
  cursor: pointer;
}

.consent input {
  margin-top: 4px;
  accent-color: var(--accent);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.form__hint {
  margin: 14px 0 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.form__error {
  margin: 0 0 14px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.28);
  color: #c0392b;
  font-size: 0.92rem;
  line-height: 1.5;
}

[data-theme="dark"] .form__error {
  color: #ff8a80;
  background: rgba(231, 76, 60, 0.14);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.btn--submit.is-loading {
  opacity: 0.88;
  cursor: wait;
  pointer-events: none;
}

.btn--submit.is-loading svg {
  opacity: 0.5;
}

/* Footer */
.footer {
  text-align: center;
  padding: 32px 20px 48px;
  color: var(--text-muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--border);
}

/* Modal */
.modal {
  border: none;
  padding: 0;
  background: transparent;
  max-width: 440px;
  width: calc(100% - 32px);
}

.modal::backdrop {
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
}

.modal__inner {
  padding: 36px 28px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-hover);
  text-align: center;
}

.modal__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 700;
}

.modal h2 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.modal p {
  color: var(--text-muted);
  margin: 0 0 24px;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--transition), transform 0.7s var(--transition);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Responsive */
@media (max-width: 900px) {
  .about-grid,
  .steps,
  .hero__stats {
    grid-template-columns: 1fr;
  }

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

  .highlight__math {
    flex-direction: column;
  }

  .math-arrow { transform: rotate(90deg); }
}

@media (max-width: 600px) {
  .form__row { grid-template-columns: 1fr; }
  .hero__title { max-width: none; }
  .lang-picker__label { display: none; }
  .lang-picker__trigger { padding: 0 10px; }
}