/* ============================================
   FRIDAY – Animations
   ============================================ */

/* --- Keyframes --- */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

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

    100% {
        background-position: 200% center;
    }
}

@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 0.5;
    }

    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* --- Animation Classes --- */
.animate-fade-in {
    animation: fadeIn var(--transition-base) ease;
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-base) ease;
}

.animate-fade-in-down {
    animation: fadeInDown var(--transition-base) ease;
}

.animate-slide-in-left {
    animation: slideInLeft var(--transition-base) ease;
}

.animate-slide-in-right {
    animation: slideInRight var(--transition-base) ease;
}

.animate-scale-in {
    animation: scaleIn var(--transition-base) ease;
}

/* --- Page Transition --- */
.page-enter {
    animation: fadeInUp 0.3s ease;
}

/* --- Staggered children --- */
.stagger-children>*:nth-child(1) {
    animation-delay: 0ms;
}

.stagger-children>*:nth-child(2) {
    animation-delay: 50ms;
}

.stagger-children>*:nth-child(3) {
    animation-delay: 100ms;
}

.stagger-children>*:nth-child(4) {
    animation-delay: 150ms;
}

.stagger-children>*:nth-child(5) {
    animation-delay: 200ms;
}

.stagger-children>*:nth-child(6) {
    animation-delay: 250ms;
}

.stagger-children>*:nth-child(7) {
    animation-delay: 300ms;
}

.stagger-children>*:nth-child(8) {
    animation-delay: 350ms;
}

.stagger-children>*:nth-child(9) {
    animation-delay: 400ms;
}

.stagger-children>*:nth-child(10) {
    animation-delay: 450ms;
}

.stagger-children>* {
    animation-fill-mode: both;
}

/* --- Hover lift --- */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* --- Mic listening animation --- */
.mic-listening-ring {
    position: relative;
}

.mic-listening-ring::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: inherit;
    border: 2px solid var(--danger);
    animation: pulse 1.5s infinite;
    pointer-events: none;
}

/* --- Loading spinner --- */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* --- Skeleton loading --- */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

/* --- Toast notification --- */
.toast {
    position: fixed;
    bottom: 80px;
    right: var(--space-4);
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    z-index: 300;
    animation: fadeInUp 0.3s ease;
    box-shadow: var(--shadow-lg);
    max-width: 320px;
}

.toast.toast-exit {
    animation: fadeIn 0.3s ease reverse;
}

/* --- Typing indicator (chat) --- */
@keyframes typingBounce {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

.typing-dots {
    display: inline-flex;
    gap: 3px;
    font-size: 24px;
    line-height: 1;
    font-weight: 700;
    color: var(--accent);
}

.typing-dots span {
    animation: typingBounce 1.4s ease infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

.typing-indicator .msg-bubble {
    min-width: 60px;
    text-align: center;
}