/* ==========================================================================
   Habitly — Shared Components
   Owner: Core / Infra Lead — Ahmed Ibrahim Shaaban
   -----------------------------------------------------------------------
   Building blocks every page pulls from: nav, buttons, cards, pills,
   the progress ring, and the tally streak mark. Page-level CSS should
   compose these, not redefine them.
   ========================================================================== */

/* ---------- Site header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgb(30, 30, 46);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.site-header__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand__mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  padding: var(--space-1);
}

.nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: background var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--color-text-primary);
}

.nav__link.is-active {
  background: var(--color-surface);
  color: var(--color-gold-soft);
  box-shadow: inset 0 0 0 1px var(--color-border);
}

.nav__link-icon {
  width: 15px;
  height: 15px;
  opacity: 0.85;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ---------- Language toggle ---------- */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  cursor: pointer;
  transition: border-color var(--duration-base) var(--ease-out),
              color var(--duration-base) var(--ease-out);
}
.lang-toggle:hover {
  border-color: var(--color-gold);
  color: var(--color-gold-soft);
}
html[lang="ar"] .lang-toggle {
  font-family: var(--font-body);
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--color-text-inverse);
  background: linear-gradient(135deg, var(--color-gold-soft), var(--color-rust));
}

/* Mobile nav collapses to icon-only pills; labels hide under 720px */
@media (max-width: 720px) {
  .nav__link-label { display: none; }
  .nav__link { padding: var(--space-2) var(--space-3); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out),
              background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out);
}

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

.btn--primary {
  background: var(--color-gold);
  color: var(--color-text-inverse);
}
.btn--primary:hover { background: var(--color-gold-soft); }

.btn--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}
.btn--ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-text-primary);
}

/* ---------- Card ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.card--elevated {
  box-shadow: var(--shadow-md);
}

.card__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

/* ---------- Pill / Badge ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  background: var(--color-bg-elevated);
}

.pill--active {
  background: rgba(214, 169, 75, 0.14);
  border-color: var(--color-gold);
  color: var(--color-gold-soft);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px var(--space-2);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  background: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-subtle);
}

/* Category dot — pairs with --cat-* tokens, e.g. style="--dot-color: var(--cat-mind)" */
.cat-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--dot-color, var(--color-text-tertiary));
  display: inline-block;
}

/* ---------- Progress ring (signature element) ----------
   A stamped "wax seal" ring: conic-gradient arc + dotted outer rim.
   Usage: <div class="seal" style="--pct: 62; --seal-color: var(--color-gold)">
            <div class="seal__inner">62%</div>
          </div> */
.seal {
  --pct: 0;
  --seal-color: var(--color-gold);
  position: relative;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle, var(--color-bg-elevated) 0 62%, transparent 63%),
    conic-gradient(var(--seal-color) calc(var(--pct) * 1%), var(--color-border-subtle) 0);
}

.seal::before {
  content: '';
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 1px dashed var(--color-border);
  opacity: 0.6;
}

.seal__inner {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-text-primary);
}

/* ---------- Tally streak ----------
   Days render as ledger tally marks, grouped in 5s like a hand-kept
   streak count. Filled marks use the habit's category/accent color. */
.tally {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 14px;
}

.tally__mark {
  width: 2px;
  height: 100%;
  background: var(--color-border);
  border-radius: 1px;
}

.tally__mark.is-filled {
  background: var(--mark-color, var(--color-gold));
}

.tally__group {
  display: flex;
  gap: 3px;
  padding-inline-end: 5px;
  border-inline-end: 1px solid var(--color-border-subtle);
}

.tally__group:last-child {
  border-inline-end: none;
  padding-inline-end: 0;
}

/* ---------- Ledger row ----------
   A single-line list row with a hairline rule, used for habit lists,
   log tables, and settings rows across pages. */
.ledger-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
}

.ledger-row:last-child { border-bottom: none; }

.ledger-row__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--icon-bg, var(--color-bg-elevated));
  color: var(--icon-color, var(--color-text-primary));
}

.ledger-row__body { flex: 1; min-width: 0; }

.ledger-row__title {
  font-weight: 600;
  font-size: var(--fs-md);
}

.ledger-row__meta {
  margin-top: 2px;
  font-size: var(--fs-sm);
  color: var(--color-text-tertiary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ---------- Checkbox ring ---------- */
.check-ring {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--ring-color, var(--color-border));
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--duration-base) var(--ease-out);
}

.check-ring.is-done {
  background: var(--color-sage);
  border-color: var(--color-sage);
  position: relative;
}

.check-ring.is-done::after {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  width: 7px;
  height: 12px;
  border-right: 2px solid var(--color-text-inverse);
  border-bottom: 2px solid var(--color-text-inverse);
  transform: translateY(-2px) rotate(45deg);
}

/* ---------- Empty / placeholder state ----------
   Shared shell for pages that are still under construction by another
   team member — keeps the app looking finished while work is in flight. */
.placeholder-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-3);
  min-height: 46vh;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  color: var(--color-text-secondary);
}

.placeholder-page__owner {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border-subtle);
  padding-block: var(--space-6);
  margin-top: var(--space-8);
  color: var(--color-text-tertiary);
  font-size: var(--fs-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}