/* =============================================================================
 * Design proposal — "Apple HIG"
 * -----------------------------------------------------------------------------
 * A calm, spacious redesign of the projects page inspired by Apple's Human
 * Interface Guidelines: San Francisco system typography, generous whitespace,
 * hairline separators, soft depth, frosted "vibrancy" surfaces, and the system
 * accent blue. Adapts automatically to light and dark appearance.
 *
 * Loaded AFTER styles.css, so it overrides the base tokens and restyles the
 * projects showcase without changing any markup or class names.
 * ========================================================================== */

:root {
  /* Light appearance (default). */
  --bg: #f5f5f7;
  --surface: #ffffff;
  --surface-2: #f0f0f3;
  --border: rgba(0, 0, 0, 0.08);
  --text: #1d1d1f;
  --muted: #6e6e73;
  --accent: #0071e3;
  --warn-bg: #fff4e5;
  --warn-text: #9a6400;
  --radius: 18px;

  /* Apple-flavoured extras used by this proposal. */
  --hig-accent-press: #0060c0;
  --hig-hairline: rgba(0, 0, 0, 0.08);
  --hig-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
  --hig-shadow-hover: 0 2px 6px rgba(0, 0, 0, 0.06), 0 18px 48px rgba(0, 0, 0, 0.12);
  --hig-vibrancy: rgba(255, 255, 255, 0.72);
  --hig-radius-sm: 12px;
  --hig-font:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
    "Helvetica Neue", system-ui, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --surface: #1c1c1e;
    --surface-2: #2c2c2e;
    --border: rgba(255, 255, 255, 0.12);
    --text: #f5f5f7;
    --muted: #98989d;
    --accent: #0a84ff;
    --warn-bg: #3a2a06;
    --warn-text: #ffd60a;
    --hig-accent-press: #409cff;
    --hig-hairline: rgba(255, 255, 255, 0.12);
    --hig-shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 12px 32px rgba(0, 0, 0, 0.5);
    --hig-shadow-hover: 0 2px 8px rgba(0, 0, 0, 0.55), 0 22px 56px rgba(0, 0, 0, 0.7);
    --hig-vibrancy: rgba(28, 28, 30, 0.72);
    color-scheme: dark;
  }
}

body {
  font-family: var(--hig-font);
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* --- Header / profile ----------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--hig-vibrancy);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--hig-hairline);
}

.profile__avatar {
  width: 96px;
  height: 96px;
  border: 0;
  box-shadow: var(--hig-shadow);
}

.profile__name {
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
}

.profile__bio {
  color: var(--muted);
  font-size: 1.02rem;
}

.profile__link {
  color: var(--accent);
  font-weight: 500;
}

/* --- Section title -------------------------------------------------------- */

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.1rem;
}

/* --- Controls ------------------------------------------------------------- */

.controls__input,
.controls__select,
.hide-tags__summary {
  border-radius: var(--hig-radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--hig-shadow);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.controls__input:focus,
.controls__select:focus,
.hide-tags[open] .hide-tags__summary {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent);
  outline: none;
}

.hide-tags__menu {
  border-radius: var(--hig-radius-sm);
  box-shadow: var(--hig-shadow-hover);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  background: var(--hig-vibrancy);
}

/* --- Toolbar: refresh + segmented view toggle ----------------------------- */

.refresh-btn {
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--hig-shadow);
  padding: 0.5rem 1rem;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.refresh-btn:hover {
  border-color: var(--border);
  box-shadow: var(--hig-shadow-hover);
}

.refresh-btn:active {
  transform: scale(0.97);
}

.view-toggle__group {
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  padding: 3px;
  overflow: visible;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04);
}

.view-toggle__btn {
  border-radius: 999px;
  background: transparent;
  transition: background 0.2s ease, color 0.2s ease;
}

.view-toggle__btn + .view-toggle__btn {
  border-left: 0;
}

.view-toggle__btn[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--hig-shadow);
}

/* --- Cards ---------------------------------------------------------------- */

.repo-grid {
  gap: 1.25rem;
}

.repo-card {
  border-radius: var(--radius);
  border: 1px solid var(--hig-hairline);
  background: var(--surface);
  box-shadow: var(--hig-shadow);
  padding: 1.4rem 1.5rem;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.25s ease;
}

@media (hover: hover) {
  .repo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--hig-shadow-hover);
  }
}

.repo-card__name {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.repo-card__name a {
  color: var(--text);
}

.repo-card__name a:hover {
  color: var(--accent);
  text-decoration: none;
}

.repo-card__desc {
  color: var(--muted);
  font-size: 0.98rem;
}

.topic {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 0;
  color: var(--accent);
  font-weight: 500;
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
}

.repo-card__foot {
  border-top: 1px solid var(--hig-hairline);
}

.stat--primary {
  color: var(--accent);
}

/* --- Section nav (Projects / Renovate) ------------------------------------ */

.view-nav {
  gap: 3px;
  padding: 3px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  width: fit-content;
}

.view-nav__btn {
  border-radius: 999px;
  color: var(--muted);
}

.view-nav__btn[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--hig-shadow);
}

/* --- Deviations view ------------------------------------------------------ */

.deviation-group {
  border: 1px solid var(--hig-hairline);
  box-shadow: var(--hig-shadow);
}

.deviation-repo,
.deviation-repo:first-child {
  border-top-color: var(--hig-hairline);
}

/* --- Footer --------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--hig-hairline);
}

@media (prefers-reduced-motion: reduce) {
  .repo-card,
  .refresh-btn {
    transition: none;
  }
}