* {
  box-sizing: border-box;
}

:root {
  --bg: #f7f5ef;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-solid: #ffffff;
  --text: #1d1c1a;
  --muted: #77736b;
  --border: #e7e2d8;
  --accent: #1f1e1b;
  --accent-hover: #34322d;
  --success-bg: #edf7ef;
  --success-text: #2d6a3f;
  --error-bg: #fff0ef;
  --error-text: #9a3d36;
  --focus: rgba(31, 30, 27, 0.12);
}

[data-theme="dark"] {
  --bg: #121212;
  --surface: rgba(27, 27, 27, 0.88);
  --surface-solid: #1c1c1c;
  --text: #f2f0eb;
  --muted: #a9a49b;
  --border: #32302d;
  --accent: #f2f0eb;
  --accent-hover: #ffffff;
  --success-bg: #17251b;
  --success-text: #9ed7aa;
  --error-bg: #2b1918;
  --error-text: #efaaa4;
  --focus: rgba(255, 255, 255, 0.08);
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.95), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  transition: background 180ms ease, color 180ms ease;
}

button,
textarea {
  font: inherit;
}

.page {
  width: min(100% - 32px, 720px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 56px 0 28px;
  display: flex;
  flex-direction: column;
}

.story-card {
  width: 100%;
  margin: auto 0;
  padding: 32px;
  background: var(--surface);
  border: 1px solid rgba(231, 226, 216, 0.9);
  border-radius: 28px;
  box-shadow: 0 24px 70px rgba(64, 55, 41, 0.07);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.03em;
}


.intro {
  margin-bottom: 8px;
}


h1 {
  max-width: none;
  margin: 0;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.05em;
  white-space: nowrap;
}

.subtitle {
  max-width: 520px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.field label {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 700;
}

.textarea-wrap {
  overflow: hidden;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.textarea-wrap:focus-within {
  border-color: #c5beb0;
  box-shadow: 0 0 0 5px var(--focus);
}

textarea {
  display: block;
  width: 100%;
  min-height: 160px;
  padding: 20px 20px 12px;
  resize: vertical;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
}

textarea::placeholder {
  color: #b1aca2;
}

.field-footer {
  padding: 0 20px 15px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: #9a958b;
  font-size: 11px;
  font-weight: 500;
}

.submit-button {
  width: 100%;
  min-height: 56px;
  margin-top: 18px;
  padding: 0 20px;
  border: 0;
  border-radius: 16px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  transition: transform 150ms ease, background 150ms ease, opacity 150ms ease;
}

.submit-button:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.submit-button:active:not(:disabled) {
  transform: translateY(0);
}

.submit-button:disabled {
  cursor: not-allowed;
  opacity: 0.35;
}

.submit-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.privacy-note {
  margin: 14px 4px 0;
  color: #9a958b;
  font-size: 11px;
  line-height: 1.6;
  text-align: center;
}

.message {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}

.message.show {
  display: block;
}

.message.success {
  background: var(--success-bg);
  color: var(--success-text);
}

footer {
  padding-top: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 7px;
  color: #aaa49a;
  font-size: 11px;
}

.dot {
  opacity: 0.55;
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 20px, 720px);
    padding: 18px 0 18px;
  }

  .story-card {
    padding: 22px 18px;
    border-radius: 22px;
  }

  .topbar {
    margin-bottom: 32px;
  }

  .brand {
    margin-bottom: 38px;
  }

  .intro {
    margin-bottom: 7px;
  }

  h1 {
    font-size: clamp(31px, 9.5vw, 39px);
  }

  .subtitle {
    font-size: 11px;
  }

  textarea {
    min-height: 170px;
  }

  footer {
    padding-top: 18px;
    padding-bottom: 4px;
  }
}


.message.error {
  background: var(--error-bg);
  color: var(--error-text);
}


.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.topbar .brand {
  margin-bottom: 0;
}

.theme-toggle {
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-solid);
  color: var(--text);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
}

.theme-toggle svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle .moon-icon {
  display: none;
}

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

[data-theme="dark"] .theme-toggle .moon-icon {
  display: block;
}

[data-theme="dark"] .submit-button {
  color: #171717;
}

[data-theme="dark"] body {
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.03), transparent 34rem),
    var(--bg);
}

[data-theme="dark"] .story-card {
  border-color: rgba(255, 255, 255, 0.07);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
}


@media (max-width: 520px) {
  h1 {
    white-space: normal;
    font-size: clamp(28px, 8.7vw, 36px);
  }
}