@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@300;400;500;600;700&display=swap');

* { box-sizing: border-box; }

body { 
    font-family: 'Kanit', sans-serif; 
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    overflow: hidden;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #a855f7; }
.dark ::-webkit-scrollbar-thumb { background: #475569; }

/* ========== Glass Panel ========== */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    position: relative;
}
.dark .glass-panel { background: rgba(15, 23, 42, 0.75); border: 1px solid rgba(255, 255, 255, 0.08); }

/* ========== Animated Glowing Border ========== */
.glass-panel::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    padding: 2px;
    background: conic-gradient(
        from var(--border-angle, 0deg),
        transparent 25%,
        rgba(168, 85, 247, 0.5) 50%,
        transparent 75%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: rotateBorder 6s linear infinite;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
    transition: opacity 0.3s;
}
.glass-panel:hover::before { opacity: 1; }

@property --border-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}
@keyframes rotateBorder {
    to { --border-angle: 360deg; }
}

/* ========== Fade In ========== */
.fade-in { animation: fadeIn 0.4s ease-in-out; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== Staggered Card Entrance (Optimized) ========== */
.card-enter {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
    animation: cardSlideUp 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    will-change: transform, opacity;
}
@keyframes cardSlideUp {
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ========== 3D Tilt Card (Optimized) ========== */
.tilt-card {
    transform-style: preserve-3d;
    perspective: 1000px;
    will-change: transform;
    transform: translateZ(0);
}
.tilt-card:hover {
    z-index: 20;
}

/* ========== Ripple Effect (Optimized) ========== */
.ripple-container { position: relative; overflow: hidden; }
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(168, 85, 247, 0.3);
    transform: scale(0);
    animation: rippleAnim 0.5s ease-out;
    pointer-events: none;
    z-index: 50;
    will-change: transform;
}
@keyframes rippleAnim {
    to { transform: scale(4); opacity: 0; }
}

/* ========== LATEST Badge (Optimized) ========== */
.badge-latest {
    position: absolute;
    top: -4px;
    right: -4px;
    background: linear-gradient(135deg, #a855f7, #6366f1);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
    z-index: 30;
    box-shadow: 0 2px 10px rgba(168, 85, 247, 0.4);
    animation: badgePulse 2.5s ease-in-out infinite;
    will-change: box-shadow, transform;
}
@keyframes badgePulse {
    0%, 100% { box-shadow: 0 2px 10px rgba(168, 85, 247, 0.4); transform: scale(1); }
    50% { box-shadow: 0 3px 15px rgba(168, 85, 247, 0.6); transform: scale(1.05); }
}

/* ========== Header Shimmer (Optimized) ========== */
.shimmer-text {
    background-size: 200% auto;
    animation: shimmer 3.5s ease-in-out infinite;
}
@keyframes shimmer {
    0% { background-position: 0% center; }
    50% { background-position: 100% center; }
    100% { background-position: 0% center; }
}

/* ========== Floating Particles ========== */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* ========== Logo Bounce (Optimized) ========== */
.logo-icon {
    animation: logoBounce 2.5s ease-in-out infinite;
}
@keyframes logoBounce {
    0%, 100% { transform: rotate(2deg) translateY(0); }
    50% { transform: rotate(-2deg) translateY(-3px); }
}

/* ========== Nav Button Hover Glow (Optimized) ========== */
.nav-btn {
    position: relative;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.35);
    transition: opacity 0.25s;
}
.nav-btn:hover::after { opacity: 1; }

/* ========== Download Icon Bounce on Card Hover (Optimized) ========== */
.download-icon {
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.tilt-card:hover .download-icon {
    animation: downloadBounce 0.5s ease-in-out;
}
@keyframes downloadBounce {
    0%, 100% { transform: scale(1.1) translateY(0); }
    25% { transform: scale(1.1) translateY(2px); }
    50% { transform: scale(1.1) translateY(-1.5px); }
    75% { transform: scale(1.1) translateY(0.5px); }
}

/* ========== Version Counter ========== */
.version-count {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 600;
    color: #a855f7;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.2);
    margin-left: 8px;
    animation: fadeIn 0.5s ease-out 0.3s both;
}

/* ========== Smooth Tab Switch (Optimized) ========== */
.tab-content {
    transition: opacity 0.25s ease, transform 0.25s ease;
}
.tab-content.hidden {
    opacity: 0;
    transform: translateY(5px);
    pointer-events: none;
    position: absolute;
}
.tab-content:not(.hidden) {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Snake ========== */
#snake {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}
.snake-segment {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, #a855f7, #6366f1);
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.5);
    transition: box-shadow 0.3s;
}
.dark .snake-segment {
    box-shadow: 0 0 25px rgba(168, 85, 247, 0.7);
}
.head {
    width: 60px;
    height: 40px;
    border-radius: 50% 50% 40% 40%;
    z-index: 10;
}
.eye {
    position: absolute;
    width: 10px;
    height: 10px;
    background: white;
    border-radius: 50%;
    top: 10px;
    z-index: 11;
}
.eye.left { left: 12px; }
.eye.right { right: 12px; }
.pupil {
    position: absolute;
    width: 5px;
    height: 5px;
    background: #1e1b4b;
    border-radius: 50%;
    top: 2.5px;
    left: 2.5px;
}

/* ========== Theme Toggle (Optimized) ========== */
#theme-toggle {
    cursor: pointer;
    outline: none;
}
#theme-toggle:hover {
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.3);
}
.dark #theme-toggle:hover {
    box-shadow: 0 0 20px rgba(251, 191, 36, 0.3);
}
@keyframes themeSwitch {
    0% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(0.9) rotate(180deg); }
    100% { transform: scale(1) rotate(360deg); }
}
#theme-toggle.switching {
    animation: themeSwitch 0.45s ease-in-out;
}

/* ========== GitHub Button Shine ========== */
.github-btn {
    position: relative;
    overflow: hidden;
}
.github-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: none;
    animation: githubShine 4s ease-in-out infinite;
}
@keyframes githubShine {
    0%, 100% { left: -100%; }
    50% { left: 100%; }
}

/* ========== Tooltip ========== */
.card-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0.9);
    background: rgba(15, 23, 42, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 100;
    backdrop-filter: blur(8px);
}
.card-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: rgba(15, 23, 42, 0.9);
}
.tilt-card:hover .card-tooltip {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

/* ========== Smooth Animations ========== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}
@keyframes glow {
    0%, 100% { box-shadow: 0 0 10px rgba(168, 85, 247, 0.3), inset 0 0 10px rgba(168, 85, 247, 0.1); }
    50% { box-shadow: 0 0 20px rgba(168, 85, 247, 0.5), inset 0 0 20px rgba(168, 85, 247, 0.15); }
}
@keyframes pulse-scale {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.03); }
}
@keyframes slide-in-right {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes slide-in-left {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes bounce-in {
    0% { opacity: 0; transform: scale(0.3) translateY(20px); }
    50% { opacity: 1; }
    100% { transform: scale(1) translateY(0); }
}
@keyframes rotate-360 {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========== Toast Notification - Optimized ========== */
.toast-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, #a855f7, #6366f1);
    color: white;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(168, 85, 247, 0.3);
    z-index: 1000;
    animation: slideInToast 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), slideOutToast 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) 2.15s forwards;
    backdrop-filter: blur(10px);
    will-change: transform, opacity;
}
@keyframes slideInToast {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes slideOutToast {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100%); }
}

/* ========== Search Bar (Optimized) ========== */
.search-container {
    position: relative;
    animation: slide-in-left 0.5s ease-out;
}
.search-input {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.88) !important;
    border: 2px solid rgba(168, 85, 247, 0.2) !important;
    will-change: border-color, box-shadow;
}
.search-input:focus {
    border-color: #a855f7 !important;
    background: white !important;
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.25);
    outline: none !important;
}
.search-input::placeholder {
    color: rgba(0, 0, 0, 0.3);
}
.dark .search-input {
    background: rgba(30, 27, 75, 0.88) !important;
    border-color: rgba(168, 85, 247, 0.1) !important;
    color: white;
}
.dark .search-input:focus {
    background: rgba(30, 27, 75, 1) !important;
    border-color: #a855f7 !important;
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.3);
}
.dark .search-input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}