/* ==============================================
   BUTTONS
   ============================================== */
.btn {
    padding: 12px 26px;
    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    white-space: nowrap;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

#clearBtn {
    margin-left: auto;
}

/* ==============================================
   PRIMARY
   ============================================== */
.btn-primary {
    border: 1px solid color-mix(in srgb, var(--neon-primary) 25%, transparent);
    color: var(--neon-primary);
    background: color-mix(in srgb, var(--neon-primary) 8%, #080818);
}

.btn-primary:not(:disabled):hover {
    border-color: color-mix(in srgb, var(--neon-primary) 50%, transparent);
    transform: translateY(-2px);
    box-shadow: 0 0 12px color-mix(in srgb, var(--neon-primary) 35%, transparent),
        0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-primary:not(:disabled):active {
    transform: translateY(1px);
    box-shadow: 0 0 6px color-mix(in srgb, var(--neon-primary) 20%, transparent);
}

.btn-primary:disabled {
    border: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-placeholder);
    cursor: not-allowed;
    background: rgba(30, 30, 40, 0.4);
}

/* ==============================================
   SECONDARY
   ============================================== */
.btn-secondary {
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    background: var(--bg-glass);
}

.btn-secondary:not(:disabled):hover {
    border-color: color-mix(in srgb, var(--neon-primary) 20%, transparent);
    transform: translateY(-2px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.btn-secondary:not(:disabled):active {
    transform: translateY(1px);
    box-shadow: none;
}

.btn-secondary:disabled {
    border: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-placeholder);
    cursor: not-allowed;
    background: rgba(30, 30, 40, 0.25);
}

/* ==============================================
   TERTIARY
   ============================================== */
.btn-tertiary {
    border: 1px solid color-mix(in srgb, var(--neon-primary) 25%, transparent);
    color: var(--text-heading);
    background: color-mix(in srgb, var(--neon-primary) 12%, transparent);
}

.btn-tertiary:not(:disabled):hover {
    border-color: color-mix(in srgb, var(--neon-primary) 45%, transparent);
    transform: translateY(-2px);
    background: color-mix(in srgb, var(--neon-primary) 20%, transparent);
    box-shadow: var(--glow-xs);
}

.btn-tertiary:disabled {
    border: 1px solid rgba(255, 255, 255, 0.03);
    transform: none;
    color: var(--text-placeholder);
    cursor: not-allowed;
    background: rgba(30, 30, 40, 0.2);
    box-shadow: none;
}

/* ==============================================
   DANGER
   ============================================== */
.btn-danger {
    border: 1px solid color-mix(in srgb, var(--neon-danger) 25%, transparent);
    color: var(--neon-danger);
    background: color-mix(in srgb, var(--neon-danger) 8%, #180808);
}

.btn-danger:not(:disabled):hover {
    border-color: color-mix(in srgb, var(--neon-danger) 50%, transparent);
    transform: translateY(-2px);
    background: color-mix(in srgb, var(--neon-danger) 12%, #200a0a);
    box-shadow: 0 0 15px color-mix(in srgb, var(--neon-danger) 30%, transparent),
        0 4px 15px rgba(0, 0, 0, 0.4);
}

.btn-danger:not(:disabled):active {
    transform: translateY(1px);
    box-shadow: 0 0 8px color-mix(in srgb, var(--neon-danger) 20%, transparent);
}

.btn-danger:disabled {
    border: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-placeholder);
    cursor: not-allowed;
    background: rgba(30, 30, 40, 0.4);
}

/* ==============================================
   SIZE VARIANTS
   ============================================== */
.btn-sm {
    padding: 6px 14px;
    font-weight: 500;
    font-size: 0.82rem;
}

/* ==============================================
   COPY FEEDBACK STATE
   ============================================== */
.copied-success {
    border-color: color-mix(in srgb, var(--neon-accent) 40%, transparent) !important;
    position: relative;
    pointer-events: none;
    color: transparent !important;
    background: color-mix(in srgb, var(--neon-accent) 25%, transparent) !important;
    text-shadow: none !important;
}

.copied-success > * {
    opacity: 0;
}

.copied-success::after {
    border: solid var(--neon-accent);
    border-width: 0 2.5px 2.5px 0;
    width: 6px;
    height: 12px;
    position: absolute;
    top: 50%;
    left: 50%;
    filter: drop-shadow(0 0 4px color-mix(in srgb, var(--neon-accent) 50%, transparent));
    transform: translate(-50%, -60%) rotate(45deg);
    animation: popInCheck 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    content: '';
}

.btn-clear {
    border: 1px solid color-mix(in srgb, var(--neon-primary) 15%, transparent);
    padding: 2px 6px;
    font-size: 1rem;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    transition: all var(--transition-fast);
}

.btn-clear:hover {
    border-color: rgba(255, 40, 40, 0.4);
    color: rgba(255, 40, 40, 0.7);
    background: rgba(255, 107, 107, 0.28);
    box-shadow: 0 0 10px color-mix(in srgb, var(--neon-danger) 30%, transparent);
}

.btn-clear.disabled {
    opacity: 0;
    pointer-events: none;
}

/* ==============================================
   ACTIVE STATE
   ============================================== */
.btn.active {
    border-color: var(--neon-primary);
    color: #000000;
    background: var(--neon-primary);
    box-shadow: 0 0 15px color-mix(in srgb, var(--neon-primary) 40%, transparent);
}

/* ==============================================
   MEDIA QUERIES
   ============================================== */
@media (max-width: 768px) {
    .btn {
        width: 100%;
    }
}