:root {
  color-scheme: light;
  --bg-start: #1fb6ff;
  --bg-mid: #48c7ff;
  --bg-end: #67d5ff;
  --surface: rgba(255, 255, 255, 0.66);
  --surface-border: rgba(255, 255, 255, 0.42);
  --text-primary: #10233f;
  --text-secondary: #5d6d84;
  --text-tertiary: #728197;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --shadow: 0 24px 60px rgba(16, 35, 63, 0.14), 0 8px 24px rgba(16, 35, 63, 0.08);
  --shadow-hover: 0 32px 72px rgba(16, 35, 63, 0.18), 0 12px 28px rgba(16, 35, 63, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.4), transparent 34%),
    linear-gradient(180deg, var(--bg-start) 0%, var(--bg-end) 100%);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 32px 20px;
}

.container {
  width: 100%;
  max-width: 560px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 28px;
  padding: 44px 40px 36px;
  text-align: center;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.container:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 255, 255, 0.56);
}

.logo {
  width: 84px;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 8px 18px rgba(16, 35, 63, 0.22));
}

.logo-badge {
  width: 128px;
  height: 128px;
  margin: 0 auto 22px;
  border-radius: 32px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(12, 74, 110, 0.72), rgba(30, 64, 175, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.subtitle {
  margin: 12px 0 18px;
  color: var(--text-secondary);
  font-size: 1.08rem;
  font-weight: 500;
}

.container > p:not(.subtitle):not(.footer):not(.support-copy) {
  margin: 0 auto;
  max-width: 40ch;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.98rem;
}

.card {
  margin-top: 28px;
  padding: 24px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.55);
  text-align: left;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42);
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.card:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.6);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.52), 0 18px 30px rgba(16, 35, 63, 0.08);
}

.card-kicker {
  margin: 0 0 8px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.card h2 {
  margin: 0;
  font-size: 1.34rem;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.support-copy {
  margin: 14px 0 22px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.alert {
  margin: 0 0 18px;
  padding: 0.85rem 1rem;
  border-radius: 16px;
  font-size: 0.92rem;
  line-height: 1.5;
  text-align: left;
}

.alert-success {
  background: rgba(16, 185, 129, 0.12);
  color: #047857;
  border: 1px solid rgba(16, 185, 129, 0.22);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  color: #b91c1c;
  border: 1px solid rgba(239, 68, 68, 0.18);
}

.contact-form {
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

.form-field {
  display: grid;
  gap: 8px;
  text-align: left;
}

.form-field label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.form-field input,
.form-field textarea {
  width: 100%;
  margin: 0;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(16, 35, 63, 0.1);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text-primary);
  font: inherit;
  line-height: 1.4;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
  transition: border-color 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.form-field textarea {
  resize: vertical;
  min-height: 128px;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #93a0b4;
}

.form-field input:hover,
.form-field textarea:hover {
  background: rgba(255, 255, 255, 0.86);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: rgba(37, 99, 235, 0.45);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 4px;
  padding: 0.95rem 1.2rem;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #fff;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.28);
  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px rgba(37, 99, 235, 0.34);
  filter: brightness(1.03);
}

.submit-btn:active {
  transform: translateY(0);
}

.submit-btn:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.45);
  outline-offset: 3px;
}

.support-meta {
  display: grid;
  gap: 16px;
  padding-top: 4px;
  border-top: 1px solid rgba(16, 35, 63, 0.08);
}

.support-item {
  margin: 0;
  display: grid;
  gap: 6px;
}

.support-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.support-value {
  color: var(--text-primary);
  line-height: 1.65;
}

.support-email {
  display: inline-flex;
  width: fit-content;
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.support-email:hover {
  transform: translateY(-1px);
  background: rgba(37, 99, 235, 0.14);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.14);
}

.support-email:focus-visible,
.card:focus-within,
.container:focus-within {
  outline: 2px solid rgba(37, 99, 235, 0.35);
  outline-offset: 3px;
}

.footer {
  margin: 22px auto 0;
  max-width: 42ch;
  color: var(--text-tertiary);
  font-size: 0.9rem;
  line-height: 1.7;
}

@media (max-width: 640px) {
  .page {
    padding: 18px;
    align-items: flex-start;
  }

  .container {
    padding: 28px 20px 24px;
    border-radius: 24px;
  }

  .logo-badge {
    width: 108px;
    height: 108px;
    margin-bottom: 18px;
    border-radius: 28px;
  }

  .logo {
    width: 72px;
  }

  .card {
    padding: 20px;
  }

  .form-field input,
  .form-field textarea {
    padding: 0.85rem 0.9rem;
  }

  .support-email {
    width: 100%;
    justify-content: center;
  }
}