/* ========== Keyframes ========== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* ========== Animation Classes ========== */
.animate-fadeIn { animation: fadeIn 0.4s ease forwards; }
.animate-fadeInUp { animation: fadeInUp 0.5s ease forwards; }
.animate-slideInUp { animation: slideInUp 0.5s ease forwards; }
.animate-scaleIn { animation: scaleIn 0.3s ease forwards; }
.animate-pulse { animation: pulse 2s infinite; }

/* Staggered card animations */
.stagger-item {
    opacity: 0;
    animation: fadeInUp 0.5s ease forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.3s; }
.stagger-item:nth-child(7) { animation-delay: 0.35s; }
.stagger-item:nth-child(8) { animation-delay: 0.4s; }
.stagger-item:nth-child(9) { animation-delay: 0.45s; }
.stagger-item:nth-child(10) { animation-delay: 0.5s; }
.stagger-item:nth-child(11) { animation-delay: 0.55s; }
.stagger-item:nth-child(12) { animation-delay: 0.6s; }

/* ========== Spinner ========== */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.spinner-lg { width: 40px; height: 40px; border-width: 4px; }

.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: inherit;
    z-index: 10;
}

/* ========== AI Inline Progress Bar ========== */
.ai-inline-progress {
    margin-top: var(--space-sm);
    animation: fadeInUp 0.3s ease;
}

.ai-inline-bar-track {
    width: 100%;
    height: 6px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 6px;
}

.ai-inline-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: var(--radius-full);
    transition: width 0.4s ease;
}

.ai-inline-status {
    font-size: 0.75rem;
    color: var(--gray-500);
    animation: pulse 2s infinite;
}

/* ========== Transitions ========== */
.transition-all { transition: all var(--transition-base); }
.transition-fast { transition: all var(--transition-fast); }