/* ========================================
   Animations & Transitions (Dark Theme)
   ======================================== */

/* --- AOS Custom Overrides --- */
[data-aos] {
    transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* --- Hover Glow Effect --- */
.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.2);
}

/* --- Gradient Shimmer --- */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.gradient-shimmer {
    background: var(--gradient-brand-horizontal);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 6s linear infinite;
}

/* --- Pulse Dot --- */
@keyframes pulse-dot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--color-teal);
    border-radius: var(--radius-full);
    animation: pulse-dot 2s ease-in-out infinite;
}

/* --- Float Animation --- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* --- Glow Pulse --- */
@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.15); }
    50% { box-shadow: 0 0 40px rgba(59, 130, 246, 0.3); }
}

.animate-glow {
    animation: glow-pulse 3s ease-in-out infinite;
}

/* --- Gradient Rotate (for decorative blobs) --- */
@keyframes gradient-rotate {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
}

.animate-gradient-rotate {
    animation: gradient-rotate 15s linear infinite;
}

/* --- Counter Animation (JS-triggered) --- */
.counter-animate {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.counter-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Link Underline --- */
.link-hover-underline {
    position: relative;
    text-decoration: none;
}

.link-hover-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-brand-horizontal);
    transition: width var(--transition-base);
}

.link-hover-underline:hover::after {
    width: 100%;
}

/* --- Spin (for loading) --- */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* --- Fade In Up --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* --- Typing Cursor Blink --- */
@keyframes blink-caret {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.typing-cursor {
    display: inline-block;
    width: 2px;
    height: 1.1em;
    background: var(--color-teal);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink-caret 0.8s step-end infinite;
}

/* --- Gradient Border Rotation --- */
@property --border-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

@keyframes border-rotate {
    to { --border-angle: 360deg; }
}

.animated-border {
    --border-angle: 0deg;
    border: 1px solid transparent;
    background-image:
        linear-gradient(var(--bg-secondary), var(--bg-secondary)),
        conic-gradient(from var(--border-angle), var(--color-teal), var(--color-blue), var(--color-purple), var(--color-teal));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    animation: border-rotate 4s linear infinite paused;
}

.animated-border:hover {
    animation-play-state: running;
}

/* --- Subtle Breathe (for hero visual) --- */
@keyframes breathe {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.02); }
}

.animate-breathe {
    animation: breathe 4s ease-in-out infinite;
}