/* ============================================================
   Rakeen Brand System — Component styles
   No borders at rest. No borders on hover. Elevation = shadow + lift.
   ============================================================ */

/* ---- Button -------------------------------------------------- */
.rk-btn { display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--r-pill);
  font-family: inherit; font-size: 15px; font-weight: 600;
  letter-spacing: -0.005em; cursor: pointer; line-height: 1;
  transition: transform var(--dur-2) var(--ease-out),
              background var(--dur-2) var(--ease-out),
              color var(--dur-2) var(--ease-out),
              box-shadow var(--dur-2) var(--ease-out); }
.rk-btn:active { transform: translateY(0) scale(0.98) !important; }
.rk-btn--sm { padding: 8px 16px; font-size: 13px; gap: 6px; }
.rk-btn--lg { padding: 16px 28px; font-size: 17px; gap: 10px; }

/* Primary — solid blue, deep shadow + warm filament aura on hover */
.rk-btn--primary { background: var(--blue-100); color: var(--paper); box-shadow: var(--shadow-blue); }
.rk-btn--primary:hover { background: var(--blue-120); box-shadow: var(--shadow-blue-lg), 0 0 0 4px var(--glow-tint); transform: translateY(-1px); }
/* Ink — solid dark */
.rk-btn--ink { background: var(--rk-ink); color: var(--paper); box-shadow: var(--shadow-2); }
.rk-btn--ink:hover { background: #050a18; transform: translateY(-1px); box-shadow: var(--shadow-3); }
/* Secondary — soft mist */
.rk-btn--secondary { background: var(--mist-100); color: var(--rk-ink); }
.rk-btn--secondary:hover { background: #b8d5d5; transform: translateY(-1px); box-shadow: var(--shadow-2); }
/* Ghost — text only, arrow extends on hover */
.rk-btn--ghost { background: transparent; color: var(--rk-ink); padding-left: 14px; padding-right: 14px; }
.rk-btn--ghost:hover { color: var(--blue-100); }
/* Outline-look without an actual border — uses inset shadow instead */
.rk-btn--soft { background: var(--paper-2); color: var(--rk-ink); box-shadow: 0 0 0 1px var(--ink-12), var(--shadow-1); }
.rk-btn--soft:hover { box-shadow: 0 0 0 1px var(--ink-20), var(--shadow-2); transform: translateY(-1px); }

.rk-btn__arrow { transition: transform var(--dur-2) var(--ease-out); }
.rk-btn--has-arrow:hover .rk-btn__arrow { transform: translateX(4px); }
.rk-btn--ghost .rk-btn__arrow { width: 14px; }
.rk-btn__icon { display: inline-flex; }

/* Icon button — circular, no border ever */
.rk-iconbtn { display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--paper-2); color: var(--rk-ink); cursor: pointer;
  box-shadow: var(--shadow-1);
  transition: transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out), background var(--dur-2) var(--ease-out); }
.rk-iconbtn:hover { box-shadow: var(--shadow-2); transform: translateY(-1px); }
.rk-iconbtn--soft { background: var(--ink-5); color: var(--rk-ink); box-shadow: none; }
.rk-iconbtn--soft:hover { background: var(--ink-8); transform: translateY(-1px); box-shadow: var(--shadow-1); }
.rk-iconbtn--ghost { background: transparent; box-shadow: none; }
.rk-iconbtn--ghost:hover { background: var(--ink-5); box-shadow: none; transform: none; }
.rk-iconbtn--dark { background: rgba(255,255,255,0.10); color: var(--paper); box-shadow: none; }
.rk-iconbtn--dark:hover { background: rgba(255,255,255,0.18); box-shadow: none; transform: translateY(-1px); }

/* ---- Card ---------------------------------------------------- */
.rk-card { background: var(--paper-2); border-radius: var(--r-xl);
  box-shadow: var(--shadow-2);
  transition: box-shadow var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out);
  position: relative; }
.rk-card--hover { cursor: pointer; }
.rk-card--hover:hover { box-shadow: var(--shadow-3); transform: translateY(-3px); }
.rk-card--deep { background: var(--rk-ink); color: var(--paper); }
.rk-card--deep.rk-card--hover:hover { box-shadow: var(--shadow-4); }
.rk-card--soft { background: var(--mist-40); box-shadow: none; }
.rk-card--soft.rk-card--hover:hover { background: var(--mist-60); transform: translateY(-3px); box-shadow: var(--shadow-2); }

.rk-fcard__icon { display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 14px;
  background: var(--blue-tint); color: var(--blue-100); }
.rk-fcard__icon--light { background: rgba(58,93,192,0.20); color: var(--mist-100); }

/* ---- Stat card ----------------------------------------------- */
.rk-stat__value { font-family: var(--font-display); font-size: 48px; font-weight: 600;
  letter-spacing: -0.025em; line-height: 1; font-variant-numeric: tabular-nums; }
.rk-stat__suffix { font-size: 22px; margin-left: 4px; color: var(--text-mute); font-weight: 500; }
.rk-stat__trend { display: inline-flex; align-items: center; gap: 5px; margin-top: var(--s-3);
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; }

/* ---- Inputs --------------------------------------------------
   Apple-style: label SITS ABOVE the field as a small-caps eyebrow.
   The field itself is a clean filled box with a hairline edge (defined
   by a 1px inset shadow, not a border). On focus, the edge becomes a
   2px blue inset — no outer glow, no double ring. */
.rk-input { display: flex; flex-direction: column; gap: 6px; min-width: 220px; }
.rk-input__label { font-size: 11px; font-weight: 600; letter-spacing: 0.10em;
  text-transform: uppercase; color: var(--text-mute);
  padding-left: 2px;
  transition: color var(--dur-2) var(--ease-out); }
.rk-input.is-focused .rk-input__label { color: var(--accent); }
.rk-input__field { display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; background: var(--paper-2);
  border-radius: var(--r-md);
  box-shadow: inset 0 0 0 1px var(--ink-12);
  transition: box-shadow var(--dur-2) var(--ease-out), background var(--dur-2) var(--ease-out); }
.rk-input.is-focused .rk-input__field { box-shadow: inset 0 0 0 2px var(--accent); }
.rk-input__field input,
.rk-input__field select { width: 100%; background: transparent; border: 0; outline: none;
  font: inherit; font-size: 15px; color: var(--rk-ink); padding: 0; appearance: none;
  -webkit-appearance: none; line-height: 1.4; }
.rk-input__field input::placeholder { color: var(--text-mute); }
.rk-input__icon { color: var(--text-mute); display: inline-flex; flex-shrink: 0; }
.rk-input__hint { font-size: 12px; color: var(--text-mute); margin-left: 8px; flex-shrink: 0; }
.rk-select__chev { color: var(--text-mute); flex-shrink: 0;
  transition: transform var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out); }
.rk-select:hover .rk-select__chev { color: var(--rk-ink); }
.rk-select.is-focused .rk-select__chev { color: var(--accent); transform: rotate(180deg); }

/* Search — pill, soft mist surface, no border */
.rk-search { display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 16px; background: var(--mist-40);
  border-radius: var(--r-pill); min-width: 280px;
  transition: background var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out); }
.rk-search:focus-within { background: var(--paper-2); box-shadow: 0 0 0 2px var(--blue-100); }
.rk-search input { flex: 1; background: transparent; border: 0; outline: none; font: inherit;
  font-size: 14px; color: var(--rk-ink); }
.rk-search input::placeholder { color: var(--text-mute); }
.rk-search__icon { color: var(--text-mute); }
.rk-search__kbd { font-family: var(--font-mono); font-size: 11px; color: var(--text-mute);
  background: var(--paper-2); padding: 2px 6px; border-radius: 4px; }

/* ---- Toggle (Apple-style) ----------------------------------- */
.rk-toggle { display: inline-flex; align-items: center; gap: 12px; cursor: pointer; }
.rk-toggle__track { position: relative; width: 40px; height: 24px;
  background: var(--ink-12); border-radius: var(--r-pill);
  transition: background var(--dur-2) var(--ease-out); flex-shrink: 0; }
.rk-toggle.is-on .rk-toggle__track { background: var(--blue-100); }
.rk-toggle__thumb { position: absolute; top: 2px; left: 2px; width: 20px; height: 20px;
  background: var(--paper-2); border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.18), 0 1px 1px rgba(0,0,0,0.06);
  transition: transform var(--dur-2) var(--ease-spring); }
.rk-toggle.is-on .rk-toggle__thumb { transform: translateX(16px); }
.rk-toggle__label { font-size: 14px; color: var(--rk-ink); }

/* ---- Tabs (sliding indicator, no borders) ------------------- */
.rk-tabs { position: relative; display: inline-flex; padding: 4px;
  background: var(--ink-5); border-radius: var(--r-pill); }
.rk-tabs__btn { position: relative; padding: 8px 18px; border-radius: var(--r-pill);
  font-size: 14px; font-weight: 500; color: var(--ink-65); z-index: 1;
  transition: color var(--dur-2) var(--ease-out); cursor: pointer; }
.rk-tabs__btn:hover { color: var(--rk-ink); }
.rk-tabs__btn.is-active { color: var(--rk-ink); }
.rk-tabs__indicator { position: absolute; top: 4px; bottom: 4px; left: 0;
  background: var(--paper-2); border-radius: var(--r-pill);
  box-shadow: var(--shadow-1);
  transition: transform var(--dur-3) var(--ease-out), width var(--dur-3) var(--ease-out);
  z-index: 0; }

/* ---- Modal --------------------------------------------------- */
.rk-modal-bg { position: fixed; inset: 0; z-index: 200; display: flex;
  align-items: flex-end; justify-content: center;
  background: rgba(22,29,54,0.36); backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  animation: fadeIn var(--dur-3) var(--ease-out); padding: 0 24px; }
@media (min-width: 720px) { .rk-modal-bg { align-items: center; } }
.rk-modal { background: var(--paper-2); width: 100%; max-width: 480px;
  border-radius: var(--r-2xl) var(--r-2xl) 0 0;
  box-shadow: var(--shadow-5);
  animation: modalRise var(--dur-3) var(--ease-out); }
@media (min-width: 720px) { .rk-modal { border-radius: var(--r-2xl); } }
@keyframes modalRise {
  from { opacity: 0; transform: translateY(40px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.rk-modal__head { display: flex; align-items: center; justify-content: space-between;
  padding: var(--s-6) var(--s-6) var(--s-4); }
.rk-modal__body { padding: 0 var(--s-6) var(--s-6); }
.rk-modal__foot { display: flex; justify-content: flex-end; gap: var(--s-3);
  padding: var(--s-4) var(--s-6) var(--s-6); }

/* ---- Toast --------------------------------------------------- */
.rk-toast-host { position: fixed; right: 24px; bottom: 24px; z-index: 300;
  display: flex; flex-direction: column-reverse; gap: 8px; pointer-events: none; }
.rk-toast { display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 18px; border-radius: var(--r-pill);
  background: var(--rk-ink); color: var(--paper);
  box-shadow: var(--shadow-4);
  font-size: 14px; font-weight: 500; max-width: 380px;
  animation: toastIn var(--dur-3) var(--ease-out); pointer-events: auto; }
.rk-toast--success { background: #14563a; box-shadow: var(--shadow-4), 0 0 0 1px var(--glow-tint); }
.rk-toast--error { background: #6c1f1f; }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ---- Tooltip ------------------------------------------------- */
.rk-tt { position: relative; display: inline-flex; }
.rk-tt__bubble { position: absolute; pointer-events: none; padding: 6px 10px;
  background: var(--rk-ink); color: var(--paper);
  font-size: 12px; font-weight: 500; letter-spacing: -0.005em;
  border-radius: var(--r-sm); white-space: nowrap;
  opacity: 0; transform: scale(0.96) translateY(4px);
  transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out);
  z-index: 50; }
.rk-tt__bubble.is-on { opacity: 1; transform: scale(1) translateY(0); }
.rk-tt__bubble--top { bottom: calc(100% + 8px); left: 50%; transform-origin: 50% 100%; }
.rk-tt__bubble--top { transform: translateX(-50%) scale(0.96) translateY(4px); }
.rk-tt__bubble--top.is-on { transform: translateX(-50%) scale(1) translateY(0); }
.rk-tt__bubble--bottom { top: calc(100% + 8px); left: 50%; }
.rk-tt__bubble--bottom { transform: translateX(-50%) scale(0.96) translateY(-4px); }
.rk-tt__bubble--bottom.is-on { transform: translateX(-50%) scale(1) translateY(0); }
.rk-tt__bubble::after { content:''; position: absolute; width: 8px; height: 8px;
  background: var(--rk-ink); transform: rotate(45deg); left: 50%; margin-left: -4px; }
.rk-tt__bubble--top::after { bottom: -3px; }
.rk-tt__bubble--bottom::after { top: -3px; }

/* ---- Avatar -------------------------------------------------- */
.rk-avatar { display: inline-flex; align-items: center; justify-content: center;
  background: var(--mist-100); color: var(--rk-ink);
  font-family: var(--font-display); font-weight: 600;
  border-radius: 50%; flex-shrink: 0; object-fit: cover;
  box-shadow: 0 0 0 2px var(--paper-2); }
.rk-avatar--more { background: var(--ink-8); color: var(--text-soft); }
.rk-avatar-stack { display: inline-flex; }
.rk-avatar-stack > .rk-avatar:not(:first-child) { margin-left: -10px; }

/* ---- Badge --------------------------------------------------- */
.rk-badge { display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: var(--r-pill);
  font-size: 12px; font-weight: 600; letter-spacing: -0.005em; line-height: 1; }
.rk-badge--neutral { background: var(--ink-5); color: var(--rk-ink); }
.rk-badge--info    { background: var(--blue-tint); color: var(--blue-120); }
.rk-badge--success { background: rgba(76,175,120,0.14); color: #2c7a4f; }
.rk-badge--warn    { background: rgba(196,149,42,0.18); color: #8a6618; }
.rk-badge--error   { background: rgba(181,75,75,0.16); color: #8c2e2e; }
.rk-badge--mist    { background: var(--mist-100); color: var(--rk-ink); }
.rk-badge--dark    { background: var(--rk-ink); color: var(--paper); }
.rk-badge__dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.85; }

/* ---- Progress + spinner ------------------------------------- */
.rk-progress { display: flex; flex-direction: column; gap: 6px; min-width: 220px; }
.rk-progress__bar { height: 6px; background: var(--ink-8); border-radius: 999px; overflow: hidden; }
.rk-progress__fill { height: 100%; background: var(--blue-100); border-radius: 999px;
  transition: width var(--dur-4) var(--ease-out); }
.rk-progress__fill.is-indet { width: 40%;
  background: linear-gradient(90deg, transparent, var(--blue-100), transparent);
  animation: indet 1.4s var(--ease-in-out) infinite; }
@keyframes indet { from { transform: translateX(-150%); } to { transform: translateX(350%); } }
.rk-progress__label { font-size: 12px; color: var(--text-mute); font-family: var(--font-mono); }

.rk-spinner { display: inline-flex; color: var(--blue-100);
  animation: spin 0.9s linear infinite; }
@keyframes spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }