/* ==========================================================================
   FILESTUDIO — Design System (2/4) : Buttons, Bento Cards, Controls & Marquee
   Stratum Obsidian & Bento Aesthetic. 100% Client-side.
   ========================================================================== */

/* ---------- Buttons ---------- */
.btn {
  --b-bg: var(--surface-2);
  --b-fg: var(--text);
  --b-bd: var(--line-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: var(--b-bg);
  color: var(--b-fg);
  border: 1px solid var(--b-bd);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease),
              box-shadow var(--t) var(--ease),
              background var(--t) var(--ease),
              border-color var(--t) var(--ease),
              opacity var(--t);
}
.btn:hover {
  transform: translateY(-1px);
  border-color: var(--line);
  color: #fff;
}
.btn:active {
  transform: translateY(0) scale(0.985);
}
.btn svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

/* Stratum Stark White Luxury Pill Button */
.btn-primary {
  background: #FFFFFF;
  color: #07080B;
  border-color: #FFFFFF;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
}
.btn-primary:hover {
  background: #F1F5F9;
  border-color: #F1F5F9;
  color: #07080B;
  box-shadow: 0 6px 30px rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}
.btn-primary svg {
  stroke: #07080B;
}

/* Accent Violet Pill */
.btn-accent {
  background: var(--grad-accent);
  color: #FFFFFF;
  border-color: transparent;
  font-weight: 600;
  box-shadow: var(--sh-glow);
}
.btn-accent:hover {
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.45);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-soft {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line-2);
  color: var(--text);
}
.btn-soft:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--line);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line-3);
  color: var(--dim);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line-2);
  color: #FFFFFF;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #FCA5A5;
}
.btn-danger:hover {
  background: rgba(239, 68, 68, 0.22);
  border-color: rgba(239, 68, 68, 0.5);
  color: #FFFFFF;
}

.btn-lg {
  padding: 13px 26px;
  font-size: 15px;
  border-radius: var(--r-pill);
}
.btn-sm {
  padding: 6px 12px;
  font-size: 12.5px;
  gap: 6px;
}
.btn-icon {
  padding: 8px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
}
.btn-block {
  width: 100%;
}
.btn[disabled],
.btn.is-disabled {
  opacity: 0.4;
  pointer-events: none;
}
.btn.is-loading {
  pointer-events: none;
  opacity: 0.75;
}
.btn.is-loading::before {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  animation: amSpin 0.7s linear infinite;
}
@keyframes amSpin {
  to { transform: rotate(360deg); }
}

/* ---------- Chips & Badges ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line-3);
  font-size: 12px;
  font-weight: 600;
  color: var(--dim);
  transition: all var(--t-fast) var(--ease);
}
.chip:hover {
  color: #FFFFFF;
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.07);
}
.chip.is-active {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--accent);
  color: #FFFFFF;
}
.chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
}

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(16, 185, 129, 0.12);
  color: var(--mint);
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.badge-rose {
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent-2);
  border-color: rgba(99, 102, 241, 0.28);
}
.badge-mute {
  background: rgba(255, 255, 255, 0.05);
  color: var(--mute);
  border-color: var(--line-3);
}
.kbd {
  font-family: var(--font-mono);
  font-size: 11.5px;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line-3);
  color: var(--dim);
}

/* ---------- Bento Cards ---------- */
.card {
  background: var(--grad-glass);
  border: 1px solid var(--line-2);
  border-radius: var(--r-bento);
  padding: 24px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--sh-2);
  transition: transform var(--t) var(--ease),
              box-shadow var(--t) var(--ease),
              border-color var(--t) var(--ease);
}
.card-soft {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--line-3);
  border-radius: var(--r-md);
  padding: 16px;
}
.card-hover:hover {
  transform: translateY(-4px);
  border-color: var(--line);
  box-shadow: var(--sh-3), var(--sh-glow);
}
.card-title {
  font-size: 18px;
  margin-bottom: 6px;
  font-weight: 700;
}
.card-ico {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.22);
  margin-bottom: 14px;
  transition: all var(--t-fast) var(--ease);
}
.card-ico svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent-2);
}
.card-hover:hover .card-ico {
  background: rgba(99, 102, 241, 0.16);
  border-color: var(--accent);
  transform: scale(1.05);
}

/* ---------- Forms & Controls ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.label {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}
.hint {
  font-size: 12px;
  color: var(--mute);
  line-height: 1.45;
}
.input,
.select,
textarea.input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--r-sm);
  background: rgba(13, 15, 21, 0.7);
  border: 1px solid var(--line-2);
  color: var(--text);
  font-size: 14px;
  transition: border-color var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease);
}
.input:hover,
.select:hover {
  border-color: var(--line);
}
.input:focus,
.select:focus,
textarea.input:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.select {
  appearance: none;
  cursor: pointer;
  padding-right: 34px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23818CF8' stroke-width='2.2' stroke-linecap='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
}
.select option {
  background: var(--ink-800);
  color: var(--text);
}
input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 5px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.12);
  outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2px solid var(--ink-900);
  box-shadow: 0 0 0 4px var(--accent-glow);
  cursor: pointer;
  transition: transform var(--t-fast);
}
input[type=range]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}
input[type=range]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 2px solid var(--ink-900);
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.seg {
  display: flex;
  width: 100%;
  padding: 4px;
  gap: 4px;
  border-radius: var(--r-pill);
  background: rgba(13, 15, 21, 0.7);
  border: 1px solid var(--line-2);
  box-sizing: border-box;
}
.seg button {
  flex: 1 1 0;
  min-width: 0;
  padding: 7px 8px;
  border-radius: var(--r-pill);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--mute);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all var(--t-fast) var(--ease);
}
.seg button:hover {
  color: var(--text);
}
.seg button.is-active {
  background: #FFFFFF;
  color: #07080B;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

.switch {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}
.switch input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.switch .track {
  width: 40px;
  height: 22px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.12);
  position: relative;
  transition: background var(--t) var(--ease);
  flex: 0 0 auto;
}
.switch .track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #FFFFFF;
  transition: transform var(--t) var(--ease);
}
.switch input:checked + .track {
  background: var(--accent);
}
.switch input:checked + .track::after {
  transform: translateX(18px);
}

.check {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  font-size: 13.5px;
}
.check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.radio-cards {
  display: grid;
  gap: 9px;
}
.radio-card {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--line-2);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.radio-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line);
}
.radio-card input {
  margin-top: 3px;
  accent-color: var(--accent);
  cursor: pointer;
  flex: 0 0 auto;
}
.radio-card b {
  font-size: 13.8px;
  display: block;
}
.radio-card span {
  font-size: 12px;
  color: var(--mute);
  display: block;
}
.radio-card.is-on {
  background: rgba(99, 102, 241, 0.08);
  border-color: var(--accent);
}

/* ---------- Stratum Marquee Ticker ---------- */
.ticker-wrap {
  width: 100%;
  overflow: hidden;
  padding: 16px 0;
  border-top: 1px solid var(--line-3);
  border-bottom: 1px solid var(--line-3);
  background: rgba(7, 8, 11, 0.45);
  position: relative;
  user-select: none;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.ticker-track {
  display: flex;
  width: max-content;
  white-space: nowrap;
  animation: amTicker 26s linear infinite;
}
.ticker-track:hover {
  animation-play-state: paused;
}
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}
.ticker-item .t-bullet {
  color: var(--accent-2);
  font-size: 10px;
}
@keyframes amTicker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ---------- Multilingual Selector (Top bar pill + animated flyout) ---------- */
.lang-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-2);
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.lang-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--line);
  color: #FFFFFF;
}
.lang-btn svg {
  width: 13px;
  height: 13px;
  stroke: var(--accent-2);
  flex: 0 0 auto;
}
.lang-btn .lang-caret {
  width: 10px;
  height: 10px;
  opacity: 0.6;
  transition: transform var(--t-fast) var(--ease);
}
.lang-wrap.is-open .lang-caret {
  transform: rotate(180deg);
}

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  background: rgba(17, 19, 27, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 6px;
  box-shadow: var(--sh-3), 0 0 25px rgba(0, 0, 0, 0.5);
  z-index: 120;
  opacity: 0;
  transform: translateY(6px) scale(0.96);
  pointer-events: none;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}
.lang-wrap.is-open .lang-menu {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.lang-menu-head {
  padding: 6px 10px 4px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  border-bottom: 1px solid var(--line-3);
  margin-bottom: 4px;
}
.lang-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 7px 10px;
  border-radius: var(--r-xs);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--dim);
  text-align: left;
  cursor: pointer;
  border: 0;
  background: none;
  transition: all var(--t-fast) var(--ease);
}
.lang-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}
.lang-item.is-active {
  background: rgba(99, 102, 241, 0.16);
  color: var(--accent-2);
  font-weight: 700;
}
.lang-item .l-script {
  font-size: 11.5px;
  opacity: 0.7;
}
.lang-item.is-active .l-script {
  opacity: 0.95;
}