/**
 * ═══════════════════════════════════════════════════════════════════════════
 * 🔢 COUNTER ANIMATION STYLES
 * ═══════════════════════════════════════════════════════════════════════════
 *
 * Styles for animated counting numbers
 */

/* ═══════════════════════════════════════════════════════════════════════════
   COUNTER BASE STYLES
   ═══════════════════════════════════════════════════════════════════════════ */

.counter {
    display: inline-block;
    font-variant-numeric: tabular-nums;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

/* Ensure smooth number transitions */
.stat-number.counter,
.metric-number.counter {
    font-feature-settings: 'tnum' 1;
    letter-spacing: 0.02em;
}

/* ═══════════════════════════════════════════════════════════════════════════
   ANIMATION STATES
   ═══════════════════════════════════════════════════════════════════════════ */

/* Initial state - slightly faded */
.counter[data-target] {
    opacity: 0.7;
    transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Animating state */
.counter.animating {
    opacity: 1;
}

/* Add subtle glow effect during animation */
@keyframes counterGlow {
    0%, 100% {
        text-shadow: 0 0 5px rgba(59, 130, 246, 0);
    }
    50% {
        text-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   ENHANCED STAT ITEMS (About Section)
   ═══════════════════════════════════════════════════════════════════════════ */

.stat-item {
    position: relative;
    overflow: visible;
}

.stat-item .counter {
    position: relative;
}

/* Pulse effect on completion */
@keyframes counterComplete {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   ENHANCED METRICS (Testimonials Section)
   ═══════════════════════════════════════════════════════════════════════════ */

.metric {
    position: relative;
    overflow: visible;
}

.metric .counter {
    position: relative;
}

/* Add shimmer effect during counting */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.counter.animating {
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(59, 130, 246, 0.3) 25%,
        rgba(59, 130, 246, 0.5) 50%,
        rgba(59, 130, 246, 0.3) 75%,
        transparent 100%
    );
    background-size: 200% 100%;
    background-clip: text;
    -webkit-background-clip: text;
    animation: shimmer 1.5s ease-in-out infinite;
}

/* Pulse glow during animation */
.counter.animating {
    animation: shimmer 1.5s ease-in-out infinite,
               counterPulse 0.5s ease-in-out infinite alternate;
}

@keyframes counterPulse {
    0% {
        filter: brightness(1);
    }
    100% {
        filter: brightness(1.2);
    }
}

/* Completed state with subtle highlight */
.counter.completed {
    animation: completedGlow 0.6s ease-out;
}

@keyframes completedGlow {
    0% {
        text-shadow: 0 0 20px rgba(59, 130, 246, 0.8);
    }
    100% {
        text-shadow: none;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE ADJUSTMENTS
   ═══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .counter {
        font-feature-settings: 'tnum' 1;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   ACCESSIBILITY
   ═══════════════════════════════════════════════════════════════════════════ */

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .counter {
        transition: none !important;
        animation: none !important;
    }

    .counter.animating {
        animation: none !important;
        background: none !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .counter.animating {
        background: none;
        text-shadow: none;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   LOADING STATE
   ═══════════════════════════════════════════════════════════════════════════ */

/* Show placeholder while loading */
.counter[data-target]:empty::before {
    content: '0';
    opacity: 0.5;
}