*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-primary: #131313;
  --bg-secondary: #1D1D2E;
  --bg-input: #0D0D0D;
  --text-primary: #FFFFFF;
  --text-secondary: #B1C3D5;
  --accent-pink: #F96F86;
  --accent-purple: #5327FF;
  --gradient: linear-gradient(90deg, #4647E5 0%, #F5728A 100%);
  --border: rgba(255, 255, 255, 0.1);
  --border-focus: rgba(255, 255, 255, 0.4);
  --radius: 12px;
  --transition: 0.32s;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}

/* ── Header ── */
.header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background-color: #111111;
  padding: 0 24px;
}

.header__inner {
  max-width: 960px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
}

.header__logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.header__logo-text {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 20px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header__logo-sub {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ── Hero ── */
.hero {
  padding: 64px 24px 48px;
}

.hero__inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 48px;
}

.hero__text {
  flex: 1;
}

.hero__title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero__accent {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.7;
}

.hero__image {
  flex-shrink: 0;
  width: 280px;
}

.hero__image img {
  width: 100%;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 0 40px rgba(249, 111, 134, 0.15);
}

/* ── Form Section ── */
.form-section {
  flex: 1;
  padding: 0 24px 64px;
}

.form-section__inner {
  max-width: 960px;
  margin: 0 auto;
}

.form-card {
  background-color: var(--bg-secondary);
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 40px;
}

.form-card__title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 28px;
}

.form-field {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.required {
  color: var(--accent-pink);
}

.form-input {
  width: 100%;
  height: 44px;
  padding: 0 16px;
  background-color: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input::placeholder {
  color: #7f849c;
}

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

.form-input.error {
  border-color: rgba(239, 68, 68, 0.5);
}

.form-input.error:focus {
  border-color: rgba(239, 68, 68, 0.5);
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

.form-textarea {
  height: auto;
  min-height: 140px;
  padding: 14px 16px;
  resize: vertical;
  line-height: 1.6;
}

.form-error {
  display: none;
  font-size: 12px;
  color: #f38ba8;
  margin-top: 6px;
}

.form-error.show {
  display: block;
}

.form-btn {
  width: 100%;
  height: 48px;
  margin-top: 8px;
  background: var(--accent-pink);
  border: none;
  border-radius: 30px;
  color: #ffffff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), opacity var(--transition);
  box-shadow: 0 0 10px 2px rgba(249, 111, 134, 0.3);
}

.form-btn:hover {
  background: #f75a70;
  box-shadow: 0 0 20px 4px rgba(249, 111, 134, 0.4);
}

.form-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(166, 227, 161, 0.1);
  border: 1px solid rgba(166, 227, 161, 0.3);
  border-radius: var(--radius);
  color: #a6e3a1;
  font-size: 14px;
}

.form-success.show {
  display: flex;
}

.form-error-global {
  display: none;
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius);
  color: #f38ba8;
  font-size: 14px;
}

.form-error-global.show {
  display: block;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background-color: #111111;
  padding: 20px 24px;
}

.footer__inner {
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
}

.footer__copy {
  font-size: 13px;
  color: #555;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero__inner {
    flex-direction: column;
    gap: 32px;
  }

  .hero__title {
    font-size: 28px;
  }

  .hero__image {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .form-card {
    padding: 24px 20px;
  }
}