/* Digital Business Card - main stylesheet.

   The palette lives in :root as CSS custom properties so the whole look can be
   changed in one place (the design reference's colour variables). No colour is
   hardcoded anywhere else in this file; the only inline colour on the page is
   the per-card accent set on the card element from the card's own data. */

:root {
  /* Palette - change the look of the whole site here. */
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-surface-muted: #eef1f4;
  --color-text: #1f2733;
  --color-text-muted: #5c6675;
  --color-text-inverse: #ffffff;
  --color-border: #e1e5ea;
  --color-focus: #3366ff;
  --color-accent: #3366ff;
  --color-danger: #c0392b;

  /* Shape and depth. */
  --radius-card: 1.1rem;
  --radius-control: 0.55rem;
  --shadow-card: 0 6px 24px rgba(20, 30, 50, 0.08);

  /* Target QR size (ADR-0009 placeholder; the encoder is a separate task). */
  --qr-size: 7rem;

  /* Typography. */
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
}

.page {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 4rem;
}

/* ---- Card view ----------------------------------------------------------- */

.card {
  --accent: var(--color-accent);
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 2rem;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 0.375rem;
  background: var(--accent);
}

.card-photo {
  display: block;
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  margin-bottom: 1rem;
}

.card-name {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  overflow-wrap: anywhere;
}

.card-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent);
  overflow-wrap: anywhere;
}

.card-org {
  margin: 0.1rem 0 0;
  color: var(--color-text-muted);
  overflow-wrap: anywhere;
}

.card-contacts {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.card-contact-label {
  display: block;
  margin-bottom: 0.1rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.card-contact-value {
  color: var(--accent);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.card-contact-value:hover {
  text-decoration: underline;
}

.card-address,
.card-note {
  margin: 1.25rem 0 0;
  color: var(--color-text-muted);
  overflow-wrap: anywhere;
}

.card-note {
  color: var(--color-text);
}

.card-footer {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.qr-slot {
  flex: 0 0 auto;
  width: var(--qr-size);
  height: var(--qr-size);
  border: 1px dashed var(--color-border);
  border-radius: 0.5rem;
  background: var(--color-surface-muted);
  display: grid;
  place-items: center;
}

.qr-glyph {
  width: 62%;
  height: 62%;
  opacity: 0.55;
  background:
    linear-gradient(var(--color-text), var(--color-text)) no-repeat 0 0 / 30% 30%,
    linear-gradient(var(--color-text), var(--color-text)) no-repeat 100% 0 / 30% 30%,
    linear-gradient(var(--color-text), var(--color-text)) no-repeat 0 100% / 30% 30%;
}

.card-footer-text {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.status {
  min-height: 1.3em;
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.card-edit {
  margin-top: 1.75rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.card-edit a {
  color: var(--color-accent);
}

/* ---- Buttons ------------------------------------------------------------- */

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn-primary:hover {
  color: var(--color-text-inverse);
  filter: brightness(1.06);
}

/* ---- Editor view --------------------------------------------------------- */

.editor-view {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 2rem;
}

.editor-header h1 {
  margin: 0 0 0.4rem;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}

.editor-header p {
  margin: 0 0 1.75rem;
  color: var(--color-text-muted);
}

.editor-view fieldset {
  margin: 0 0 1.75rem;
  padding: 0;
  border: 0;
}

.editor-view legend {
  margin-bottom: 0.85rem;
  padding: 0;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.editor-view fieldset > .field,
.editor-view fieldset > .field-grid {
  margin-top: 1rem;
}

.editor-view fieldset > .field:first-child,
.editor-view fieldset > .field-grid:first-child {
  margin-top: 0;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.editor-view label {
  font-size: 0.9rem;
  font-weight: 500;
}

.editor-view input,
.editor-view textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
}

.editor-view textarea {
  resize: vertical;
}

.editor-view input:focus,
.editor-view textarea:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 1px;
  border-color: var(--color-focus);
}

.editor-view input[type="color"] {
  padding: 0.25rem;
  height: 2.75rem;
  cursor: pointer;
}

.photo-preview {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

.form-error {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-danger);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.form-hint {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---- Responsive ---------------------------------------------------------- */

@media (max-width: 40rem) {
  .page {
    padding-top: 1.5rem;
  }

  .card,
  .editor-view {
    padding: 1.25rem;
  }

  .field-grid {
    grid-template-columns: 1fr;
  }

  .card-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}