/* ═══════════════════════════════════════════════════════════
   AVANTE — Component Styles (Buttons, Cards, Inputs, etc.)
   ═══════════════════════════════════════════════════════════ */

/* ── Buttons ── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-lg);
  transition: all var(--duration-base) var(--ease-out);
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--ripple-x, 50%) var(--ripple-y, 50%), rgba(255,255,255,0.3) 0%, transparent 60%);
  opacity: 0;
  transform: scale(0);
  transition: transform 0.6s var(--ease-out), opacity 0.6s;
}

.btn:active::after {
  opacity: 1;
  transform: scale(2.5);
  transition: transform 0s, opacity 0s;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-blue), var(--color-blue-neon));
  color: var(--color-white);
  box-shadow: 0 0 20px var(--color-blue-glow),
              0 4px 15px rgba(30, 144, 255, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--color-blue-glow-md),
              0 8px 25px rgba(30, 144, 255, 0.4);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--secondary {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-border-hover);
}

.btn--secondary:hover {
  border-color: var(--color-blue);
  background: var(--color-blue-glow);
  transform: translateY(-2px);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-bg);
  font-weight: 700;
}

.btn--white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.btn--sm {
  padding: 10px 20px;
  font-size: var(--text-xs);
}

.btn--lg {
  padding: 18px 40px;
  font-size: var(--text-base);
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* ── Cards ── */
.card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--duration-slow) var(--ease-out);
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(30, 144, 255, 0.05), transparent 50%);
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.card:hover {
  border-color: rgba(30, 144, 255, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.card:hover::before {
  opacity: 1;
}

.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-blue-glow);
  border: 1px solid rgba(30, 144, 255, 0.15);
  margin-bottom: var(--space-5);
  color: var(--color-blue);
  transition: all var(--duration-base) var(--ease-out);
}

.card:hover .card__icon {
  background: rgba(30, 144, 255, 0.2);
  box-shadow: 0 0 20px var(--color-blue-glow);
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ── Glass Card Variant ── */
.card--glass {
  background: rgba(17, 17, 17, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.card--glass:hover {
  background: rgba(17, 17, 17, 0.6);
  border-color: rgba(30, 144, 255, 0.15);
}

/* ── Tech Card ── */
.tech-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-6);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--duration-base) var(--ease-out);
}

.tech-card:hover {
  border-color: rgba(30, 144, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.tech-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  transition: transform var(--duration-base) var(--ease-spring);
}

.tech-card:hover .tech-card__icon {
  transform: scale(1.15);
}

.tech-card__name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-align: center;
}

.tech-card:hover .tech-card__name {
  color: var(--color-white);
}

/* ── Input Fields ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.form-input {
  padding: 14px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  transition: all var(--duration-base) var(--ease-out);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px var(--color-blue-glow);
}

.form-input::placeholder {
  color: var(--color-text-dim);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

.form-select {
  appearance: none;
  padding: 14px 18px;
  padding-right: 44px;
  background: var(--color-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 16px center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  transition: all var(--duration-base) var(--ease-out);
  outline: none;
}

.form-select:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px var(--color-blue-glow);
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
  background: var(--color-blue-glow);
  color: var(--color-blue-light);
  border: 1px solid rgba(30, 144, 255, 0.15);
}

/* ── Tooltip ── */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 6px 12px;
  background: var(--color-surface-2);
  color: var(--color-text);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-fast) var(--ease-out);
}

[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}