/* COMPONENTS — кнопки, карточки, бейджи, чипы */

/* ─── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: clamp(8px, 0.8vw, 12px);
  padding: clamp(12px, 1.2vw, 16px) clamp(22px, 2.2vw, 32px);
  min-height: clamp(48px, 4vw, 56px);
  line-height: 1.2;
  font-weight: 600;
  font-size: clamp(14px, 1.1vw, 16px);
  border-radius: var(--radius-md);
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background var(--dur-fast);
  white-space: nowrap;
  border: 1px solid transparent;
  vertical-align: middle;
  box-sizing: border-box;
}

.btn > * { line-height: inherit; }
.btn .magnetic-inner {
  display: inline-flex;
  align-items: center;
  gap: inherit;
  line-height: inherit;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn:focus-visible { outline: 2px solid var(--accent-tg); outline-offset: 3px; }

.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--shadow-md), 0 0 0 0 transparent;
}

.btn-primary:hover {
  box-shadow: var(--shadow-lg), var(--glow-tg);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-0);
  border-color: var(--border-bright);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-tg);
}

.btn-ghost {
  color: var(--text-1);
  padding: clamp(10px, 1vw, 12px) clamp(14px, 1.4vw, 20px);
  min-height: clamp(40px, 3.4vw, 48px);
}
.btn-ghost:hover { color: var(--accent-tg); }

.btn-demo {
  background: linear-gradient(135deg, #ff6ec7 0%, #9e6bff 100%);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 8px 22px -10px rgba(158, 107, 255, 0.55);
  position: relative;
}
.btn-demo::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, #ff6ec7, #9e6bff, #6ec9ff);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
  filter: blur(8px);
}
.btn-demo:hover {
  box-shadow: 0 12px 28px -8px rgba(158, 107, 255, 0.75);
}
.btn-demo:hover::before { opacity: 0.9; }

.hero-demo-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin: 14px 0 0;
  padding: 10px 14px;
  background: rgba(158, 107, 255, 0.08);
  border: 1px solid rgba(158, 107, 255, 0.25);
  border-radius: var(--radius-md);
  color: var(--text-1);
  font-size: 13.5px;
  line-height: 1.55;
}
.hero-demo-note b { color: var(--text-0); }
.hero-demo-note code {
  background: rgba(0, 0, 0, 0.35);
  padding: 1px 7px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  color: #9e6bff;
}

.demo-pill {
  display: inline-block;
  padding: 2px 9px;
  background: linear-gradient(135deg, #ff6ec7, #9e6bff);
  color: #fff;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.8px;
  border-radius: 999px;
}

.demo-warn {
  flex-basis: 100%;
  color: var(--text-2, #9aa0b4);
  font-size: 12.5px;
  opacity: 0.85;
}

.btn-lg {
  padding: clamp(16px, 1.6vw, 20px) clamp(28px, 2.8vw, 40px);
  min-height: clamp(54px, 4.8vw, 64px);
  font-size: clamp(15px, 1.2vw, 18px);
}
.btn-sm {
  padding: clamp(8px, 0.8vw, 12px) clamp(14px, 1.4vw, 20px);
  min-height: clamp(36px, 3vw, 42px);
  font-size: clamp(13px, 0.95vw, 14.5px);
}
.btn-block { width: 100%; }

/* ─── Card ──────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base),
              background var(--dur-base);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.card.hl::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-brand);
  opacity: 0.8;
}

.card .card-icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  background: var(--accent-tg-dim);
  color: var(--accent-tg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  font-size: 24px;
}

.card .card-icon.violet { background: var(--accent-violet-dim); color: var(--accent-violet); }
.card .card-icon.mint { background: var(--accent-mint-dim); color: var(--accent-mint); }
.card .card-icon.warn { background: #FFB02033; color: var(--accent-warn); }

.card h3 { margin-bottom: 10px; font-size: 20px; }
.card p { color: var(--text-2); font-size: 15px; }

/* ─── Chip / Badge ──────────────────────────────────────── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-1);
}

.chip.accent { background: var(--accent-tg-dim); color: var(--accent-tg); border-color: transparent; }
.chip.success { background: var(--accent-mint-dim); color: var(--accent-mint); border-color: transparent; }