/* Sandra notepad — lean vanilla CSS, system fonts, mobile-first, no overflow 320-1280px. */

:root {
  color-scheme: light dark;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";

  --bg: #f7f5f2;
  --bg-raised: #ffffff;
  --text: #1c1a17;
  --text-muted: #5a564f;
  --border: #ddd8d0;
  --accent: #7a4a2b;
  --accent-contrast: #ffffff;
  --danger: #9a2c2c;
  --danger-bg: #fbe9e9;
  --focus-ring: #2d5fae;

  --radius-sm: 0.4rem;
  --radius-md: 0.7rem;
  --shadow-sm: 0 1px 2px rgba(20, 16, 10, 0.08);
  --shadow-md: 0 4px 16px rgba(20, 16, 10, 0.10);

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: clamp(1rem, 3vw, 1.5rem);
  --space-4: clamp(1.5rem, 5vw, 2.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171512;
    --bg-raised: #211e1a;
    --text: #f1eee8;
    --text-muted: #b8b2a6;
    --border: #38332c;
    --accent: #d3a06c;
    --accent-contrast: #201304;
    --danger: #ff9b9b;
    --danger-bg: #3a1f1f;
    --focus-ring: #8fb4ff;
  }
}

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

html, body { margin: 0; padding: 0; }

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  min-height: 100svh;
}

img, picture, video, canvas, svg { max-width: 100%; height: auto; }

.container {
  width: 100%;
  max-width: 46rem;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -3rem;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 100;
  transition: top 150ms ease-out;
}
.skip-link:focus {
  top: 0.5rem;
}
@media (prefers-reduced-motion: reduce) {
  .skip-link { transition: none; }
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ---- Header ---- */
.app-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
}
.app-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 3.5rem;
  padding-block: var(--space-1);
}
.app-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
}
.app-header__mark { color: var(--accent); flex: none; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 150ms ease-out, transform 150ms ease-out, opacity 150ms ease-out;
}
@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-contrast);
}
.btn--primary:hover { opacity: 0.92; }
.btn--primary:active { transform: translateY(1px); }
.btn--primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.btn--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-muted);
  min-height: 40px;
  padding: 0.4rem 0.9rem;
  font-weight: 500;
}
.btn--ghost:hover { background: var(--border); }

/* ---- Main layout ---- */
main.container {
  padding-block: var(--space-3) var(--space-4);
}

/* ---- Login view ---- */
.login-card {
  max-width: 26rem;
  margin-inline: auto;
  margin-block-start: clamp(2rem, 10vh, 6rem);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-3);
}
.login-card h1 {
  margin-block: 0 0.4rem;
  font-size: 1.4rem;
}
.login-card__hint {
  color: var(--text-muted);
  margin-block: 0 var(--space-2);
  font-size: 0.95rem;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-block-end: var(--space-2);
}
.field label {
  font-weight: 600;
  font-size: 0.9rem;
}
input[type="password"],
textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.8rem;
}
input[type="password"] { min-height: 44px; }
textarea {
  resize: vertical;
  min-height: 6rem;
}

.field-error,
#entry-error {
  color: var(--danger);
  background: var(--danger-bg);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.7rem;
  font-size: 0.9rem;
  margin-block: 0.5rem 0;
  overflow-wrap: break-word;
}

/* ---- Entry box ---- */
.entry-box {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-2);
  margin-block-end: var(--space-3);
}
.entry-box__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-1);
  margin-block-start: var(--space-1);
}
.entry-box__row #entry-error {
  flex: 1 1 100%;
  order: -1;
}

.feed-status {
  color: var(--text-muted);
  font-size: 0.9rem;
  min-height: 1.2rem;
  margin-block-end: var(--space-1);
}

/* ---- Feed ---- */
.feed {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.note-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-2);
  min-width: 0;
}
@media (prefers-reduced-motion: no-preference) {
  .note-card {
    animation: note-in 220ms ease-out;
  }
}
@keyframes note-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.note-card__body {
  margin: 0 0 0.35rem;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  word-break: break-word;
}
.note-card__time {
  display: block;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-block-end: var(--space-2);
}

.slots-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
}
@media (min-width: 640px) {
  .slots-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.slot-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.8rem;
  min-width: 0;
  min-height: 5.5rem;
}
.slot-card__badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  margin-block-end: 0.4rem;
  color: var(--text-muted);
  background: var(--border);
}
.slot-card[data-status="pending"] .slot-card__badge {
  color: var(--text-muted);
}
.slot-card[data-status="filled"] .slot-card__badge {
  color: var(--accent-contrast);
  background: var(--accent);
}
.slot-card[data-status="error"] .slot-card__badge {
  color: var(--danger);
  background: var(--danger-bg);
}
.slot-card__title {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
  overflow-wrap: break-word;
  word-break: break-word;
}
.slot-card__body {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  overflow-wrap: break-word;
  word-break: break-word;
}

.slot-card[data-status="pending"] .slot-card__title,
.slot-card[data-status="pending"] .slot-card__body {
  color: var(--text-muted);
  font-style: italic;
}

@media (prefers-reduced-motion: no-preference) {
  .slot-card[data-status="pending"] .slot-card__badge {
    animation: pulse 1.6s ease-in-out infinite;
  }
}
@keyframes pulse {
  /* Dip is shallow (1 -> 0.8) so the badge never drops below ~3:1 contrast
     mid-animation — a deeper dip (e.g. 0.55) tested below threshold. */
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.empty-state {
  color: var(--text-muted);
  text-align: center;
  padding: var(--space-3);
}