/* ==========================================================================
   KELESHEK — дизайн-система (UI/UX Pro Max)
   Палитра: профессиональный синий + сервисный зелёный (government/education)
   Шрифты: Lexend (заголовки) + Source Sans 3 (текст)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@400;500;600;700;800&family=Source+Sans+3:wght@400;500;600;700&display=swap');

:root {
  /* Түстер / Цвета */
  --color-primary: #1E40AF;
  --color-primary-hover: #1B3A9E;
  --color-primary-press: #17318a;
  --color-on-primary: #FFFFFF;
  --color-secondary: #3B82F6;
  --color-accent: #16A34A;
  --color-accent-hover: #128a3f;
  --color-background: #EFF6FF;
  --color-surface: #FFFFFF;
  --color-foreground: #1E3A8A;
  --color-ink: #172554;
  --color-muted: #E9EFF5;
  --color-muted-text: #5b6b86;
  --color-border: #BFDBFE;
  --color-border-soft: #DBEAFE;
  --color-destructive: #DC2626;
  --color-ring: #1E40AF;

  /* Кеңістік / Пространство (density 5 — standard) */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 24px; --space-6: 32px; --space-7: 48px; --space-8: 64px;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(30, 58, 138, 0.06);
  --shadow: 0 10px 34px rgba(30, 64, 175, 0.10);
  --shadow-lg: 0 24px 60px rgba(30, 64, 175, 0.16);

  --font-head: "Lexend", "Segoe UI", system-ui, sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", system-ui, -apple-system, sans-serif;

  --tr: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  background: var(--color-background);
  color: var(--color-ink);
}

h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; letter-spacing: -0.02em; }

/* ---- Тіл ауыстырғыш / Переключатель языка ---- */
.lang-switch {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 20;
  display: flex;
  gap: var(--space-1);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: var(--space-1);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}
.lang-btn {
  border: 0;
  background: transparent;
  color: var(--color-primary);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--tr), color var(--tr);
}
.lang-btn:hover { background: var(--color-muted); }
.lang-btn.is-active { background: var(--color-primary); color: var(--color-on-primary); }

/* ---- Hero ---- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 120% at 85% -10%, rgba(59, 130, 246, 0.55), transparent 60%),
    linear-gradient(135deg, #16308f 0%, var(--color-primary) 55%, #2563eb 100%);
  color: var(--color-on-primary);
  padding: var(--space-7) var(--space-5) var(--space-6);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.10) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.4;
  pointer-events: none;
}
.hero__inner { max-width: 900px; margin: 0 auto; position: relative; z-index: 1; }
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.30);
  padding: 6px 16px;
  border-radius: 999px;
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.4px;
  font-weight: 600;
  margin-bottom: var(--space-5);
}
.hero__title {
  font-size: clamp(26px, 4.2vw, 40px);
  font-weight: 800;
  margin: 0 0 var(--space-4);
  max-width: 22ch;
}
.hero__subtitle { font-size: clamp(15px, 2vw, 18px); opacity: 0.95; margin: 0 0 var(--space-4); font-weight: 500; }
.hero__goal { font-size: 16px; opacity: 0.85; margin: 0; max-width: 68ch; }

/* ---- Layout ---- */
.container { max-width: 900px; margin: var(--space-6) auto var(--space-8); padding: 0 var(--space-4); }
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-6);
  margin-bottom: var(--space-5);
}
.card h2 {
  margin: 0 0 var(--space-5);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  color: var(--color-foreground);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.card h2 .ic { color: var(--color-primary); flex: none; }

/* ---- Талаптар / Требования ---- */
.req__list { list-style: none; margin: 0 0 var(--space-5); padding: 0; display: grid; gap: var(--space-3); }
.req__list li { position: relative; padding-left: var(--space-6); font-weight: 500; }
.req__list li .ic { position: absolute; left: 0; top: 2px; color: var(--color-accent); }
.req__video {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  background: linear-gradient(180deg, #f0fdf4, #ffffff);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-sm);
  padding: var(--space-4);
}
.req__video .ic { color: var(--color-accent); flex: none; margin-top: 2px; }
.req__video b { display: block; color: #15803d; font-family: var(--font-head); margin-bottom: 2px; }

/* ---- Форма ---- */
.form__hint { color: var(--color-muted-text); font-size: 15px; margin: calc(-1 * var(--space-3)) 0 var(--space-5); }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.field { display: flex; flex-direction: column; }
.field--full { grid-column: 1 / -1; }
label { font-family: var(--font-head); font-weight: 500; font-size: 14px; margin-bottom: 6px; color: var(--color-ink); }

input, textarea {
  font-family: var(--font-body);
  font-size: 16px;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fbfdff;
  color: var(--color-ink);
  transition: border-color var(--tr), box-shadow var(--tr), background var(--tr);
}
input::placeholder, textarea::placeholder { color: #9db3d1; }
input:hover, textarea:hover { border-color: var(--color-secondary); }
input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.16);
}
textarea { resize: vertical; min-height: 84px; }
input.invalid, textarea.invalid { border-color: var(--color-destructive); background: #fef4f4; }
input.invalid:focus, textarea.invalid:focus { box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15); }
.field__note { font-size: 13px; margin-top: 6px; color: var(--color-muted-text); font-weight: 500; }
.field__note.err { color: var(--color-destructive); }

/* Honeypot */
.hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }

/* ---- Чекбоксы ---- */
.check { margin-top: var(--space-5); display: flex; flex-direction: column; gap: var(--space-3); }
.check__row {
  display: flex; align-items: flex-start; gap: var(--space-3);
  font-size: 15px; font-weight: 500;
  padding: var(--space-3); border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-soft); background: #f8fbff;
  transition: border-color var(--tr), background var(--tr);
  cursor: pointer;
}
.check__row:hover { border-color: var(--color-secondary); background: #f2f8ff; }
.check__row input { width: 20px; height: 20px; margin-top: 1px; flex: none; accent-color: var(--color-primary); cursor: pointer; }

/* ---- Кнопки ---- */
.submit-btn {
  margin-top: var(--space-6);
  width: 100%;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  border: 0;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  padding: 16px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(22, 163, 74, 0.28);
  transition: background var(--tr), transform 80ms ease, box-shadow var(--tr);
}
.submit-btn:hover { background: var(--color-accent-hover); box-shadow: 0 12px 26px rgba(22, 163, 74, 0.34); }
.submit-btn:active { transform: translateY(1px); }
.submit-btn:disabled { opacity: 0.65; cursor: not-allowed; box-shadow: none; }
.ghost-btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  border: 1.5px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
  font-family: var(--font-head);
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--tr), color var(--tr);
}
.ghost-btn:hover { background: var(--color-primary); color: #fff; }

/* ---- Хабарлама / Сообщение ---- */
.form-message {
  margin-top: var(--space-4);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
}
.form-message.error { background: #fef2f2; color: var(--color-destructive); border: 1px solid #fecaca; }
.form-message.info  { background: #eff6ff; color: var(--color-primary); border: 1px solid var(--color-border); }

/* ---- Сәттілік / Успех ---- */
.success { text-align: center; padding: var(--space-7) var(--space-5); }
.success__icon {
  width: 72px; height: 72px; margin: 0 auto var(--space-4);
  border-radius: 50%;
  background: var(--color-accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(22, 163, 74, 0.32);
}
.success h2 { justify-content: center; color: var(--color-foreground); }
.success p { color: var(--color-muted-text); font-size: 16px; margin: 0 0 var(--space-5); }

/* ---- Focus (қолжетімділік / доступность) ---- */
:focus-visible { outline: 3px solid var(--color-ring); outline-offset: 2px; border-radius: 4px; }

.site-footer { text-align: center; color: var(--color-muted-text); font-size: 14px; padding: var(--space-6) var(--space-4) var(--space-7); }

/* ---- Responsive: 375 / 768 / 1024 ---- */
@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .card { padding: var(--space-5); }
  .hero { padding: var(--space-7) var(--space-4) var(--space-6); }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}