/* Fonts */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: radial-gradient(ellipse at top, #0a0a1a 0%, #000 70%);
    min-height: 100vh;
    transition: background 0.4s ease, color 0.4s ease;
}

/* ==================== LIGHT MODE ==================== */
body.light-mode {
    background: radial-gradient(ellipse at top, #f0f4f8 0%, #e2e8f0 70%);
    color: #1a202c;
}

/* Header Light Mode */
body.light-mode header {
    background: rgba(255, 255, 255, 0.9);
    border-color: #e2e8f0;
}

body.light-mode header h1 {
    color: #1a202c;
}

body.light-mode header .text-gray-400 {
    color: #64748b;
}

/* Theme Toggle Button Light Mode */
body.light-mode #theme-toggle {
    background: #e2e8f0;
    border-color: #cbd5e1;
}

body.light-mode #theme-toggle:hover {
    background: #cbd5e1;
    border-color: #94a3b8;
}

/* Filter Bar Light Mode */
body.light-mode #filter-bar {
    background: rgba(255, 255, 255, 0.8);
    border-color: #e2e8f0;
}

body.light-mode #filter-bar select {
    background: #f1f5f9;
    border-color: #cbd5e1;
    color: #334155;
}

body.light-mode #filter-bar select:hover {
    border-color: #94a3b8;
}

body.light-mode .filter-btn {
    background: rgba(226, 232, 240, 0.8);
    color: #475569;
    border: 1px solid #e2e8f0;
}

body.light-mode .filter-btn:hover {
    background: rgba(203, 213, 225, 0.9);
    color: #1e293b;
}

body.light-mode .filter-btn.active {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2) 0%, rgba(59, 130, 246, 0.2) 100%);
    color: #0891b2;
    border-color: rgba(6, 182, 212, 0.5);
}

body.light-mode #results-count,
body.light-mode .text-gray-400,
body.light-mode .text-gray-500 {
    color: #64748b;
}

/* Cards Light Mode */
body.light-mode .chain-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(241, 245, 249, 0.95) 100%);
    border-color: #e2e8f0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

body.light-mode .chain-card:hover {
    box-shadow: 
        0 20px 40px -15px var(--chain-color-glow),
        0 0 60px -20px var(--chain-color);
}

body.light-mode .chain-card h3 {
    color: #1e293b;
}

body.light-mode .chain-card .text-gray-400,
body.light-mode .chain-card .text-gray-500,
body.light-mode .chain-card .text-gray-600 {
    color: #64748b;
}

body.light-mode .chain-card .text-white {
    color: #1e293b;
}

body.light-mode .chain-card .bg-black\/50 {
    background: rgba(241, 245, 249, 0.9);
}

body.light-mode .chain-card .bg-black\/30 {
    background: rgba(0, 0, 0, 0.9);
    border-color: #1e293b;
}

body.light-mode .chain-card .bg-gray-800 {
    background: #e2e8f0;
}

body.light-mode .chain-card .border-gray-700\/50,
body.light-mode .chain-card .border-gray-800\/30 {
    border-color: #cbd5e1;
}

/* Speed Gauge Light Mode */
body.light-mode .speed-gauge .bg-gray-800 {
    background: #cbd5e1;
}

body.light-mode .speed-gauge .border-gray-700\/50 {
    border-color: rgba(148, 163, 184, 0.5);
}

/* Modal Light Mode */
body.light-mode #info-modal > div {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-color: #e2e8f0;
}

body.light-mode #info-modal h2 {
    color: #1e293b;
}

body.light-mode #info-modal .text-gray-400,
body.light-mode #info-modal .text-gray-500 {
    color: #64748b;
}

body.light-mode #info-modal .text-gray-300 {
    color: #475569;
}

body.light-mode #info-modal .bg-black\/50 {
    background: rgba(241, 245, 249, 0.9);
    border-color: #e2e8f0;
}

body.light-mode #info-modal .bg-gray-800\/50 {
    background: rgba(226, 232, 240, 0.8);
    border-color: #e2e8f0;
}

body.light-mode #info-modal .bg-gray-800\/30 {
    background: rgba(241, 245, 249, 0.8);
    border-color: #e2e8f0;
}

body.light-mode #info-modal .text-white {
    color: #1e293b;
}

body.light-mode #info-modal .border-gray-700 {
    border-color: #e2e8f0;
}

/* Close button Light Mode */
body.light-mode #close-modal {
    color: #64748b;
}

body.light-mode #close-modal:hover {
    color: #1e293b;
}

/* Intro Text Light Mode */
body.light-mode main h2 {
    color: #1e293b;
}

body.light-mode main > .text-center p {
    color: #64748b;
}

/* Scrollbar Light Mode */
body.light-mode::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
}

body.light-mode::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* Toast Light Mode */
body.light-mode .chatgpt-toast {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

h1, h2, h3, .stat-value {
    font-family: 'Orbitron', sans-serif;
}

/* Canvas */
canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Card Styling */
.chain-card {
    background: linear-gradient(145deg, rgba(20, 20, 35, 0.8) 0%, rgba(10, 10, 20, 0.9) 100%);
    backdrop-filter: blur(10px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.chain-card {
    cursor: pointer;
}

.chain-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--chain-color);
    box-shadow: 
        0 20px 40px -15px var(--chain-color-glow),
        0 0 60px -20px var(--chain-color);
}

.chain-card:active {
    transform: translateY(-4px) scale(1.01);
}

/* Chain-specific glows */
.glow-bitcoin { --chain-color: #F7931A; --chain-color-glow: rgba(247, 147, 26, 0.3); }
.glow-ethereum { --chain-color: #627EEA; --chain-color-glow: rgba(98, 126, 234, 0.3); }
.glow-avalanche { --chain-color: #E84142; --chain-color-glow: rgba(232, 65, 66, 0.4); }
.glow-solana { --chain-color: #14F195; --chain-color-glow: rgba(20, 241, 149, 0.4); }
.glow-polygon { --chain-color: #8247E5; --chain-color-glow: rgba(130, 71, 229, 0.4); }
.glow-sui { --chain-color: #4DA2FF; --chain-color-glow: rgba(77, 162, 255, 0.4); }
.glow-litecoin { --chain-color: #345D9D; --chain-color-glow: rgba(52, 93, 157, 0.4); }
.glow-monero { --chain-color: #FF6600; --chain-color-glow: rgba(255, 102, 0, 0.4); }
.glow-zcash { --chain-color: #F4B728; --chain-color-glow: rgba(244, 183, 40, 0.4); }
.glow-xrp { --chain-color: #23292F; --chain-color-glow: rgba(255, 255, 255, 0.3); }
.glow-dogecoin { --chain-color: #C2A633; --chain-color-glow: rgba(194, 166, 51, 0.4); }
.glow-cardano { --chain-color: #0033AD; --chain-color-glow: rgba(0, 51, 173, 0.4); }
.glow-ton { --chain-color: #0098EA; --chain-color-glow: rgba(0, 152, 234, 0.4); }
.glow-polkadot { --chain-color: #E6007A; --chain-color-glow: rgba(230, 0, 122, 0.4); }
.glow-icp { --chain-color: #29ABE2; --chain-color-glow: rgba(41, 171, 226, 0.4); }
.glow-base { --chain-color: #0052FF; --chain-color-glow: rgba(0, 82, 255, 0.4); }
.glow-pi { --chain-color: #F8CE47; --chain-color-glow: rgba(248, 206, 71, 0.4); }
.glow-etc { --chain-color: #328332; --chain-color-glow: rgba(50, 131, 50, 0.4); }
.glow-aptos { --chain-color: #4CD7B0; --chain-color-glow: rgba(76, 215, 176, 0.4); }
.glow-kaspa { --chain-color: #49EACD; --chain-color-glow: rgba(73, 234, 205, 0.4); }
.glow-arbitrum { --chain-color: #28A0F0; --chain-color-glow: rgba(40, 160, 240, 0.4); }
.glow-cosmos { --chain-color: #2E3148; --chain-color-glow: rgba(46, 49, 72, 0.4); }
.glow-sei { --chain-color: #9B1C2E; --chain-color-glow: rgba(155, 28, 46, 0.4); }
.glow-starknet { --chain-color: #29296E; --chain-color-glow: rgba(41, 41, 110, 0.4); }
.glow-optimism { --chain-color: #FF0420; --chain-color-glow: rgba(255, 4, 32, 0.4); }
.glow-tezos { --chain-color: #2C7DF7; --chain-color-glow: rgba(44, 125, 247, 0.4); }
.glow-monad { --chain-color: #836EF9; --chain-color-glow: rgba(131, 110, 249, 0.4); }
.glow-pirate { --chain-color: #D4AF37; --chain-color-glow: rgba(212, 175, 55, 0.4); }
.glow-hyperliquid { --chain-color: #84E8A2; --chain-color-glow: rgba(132, 232, 162, 0.4); }
.glow-eos { --chain-color: #443F54; --chain-color-glow: rgba(68, 63, 84, 0.4); }
.glow-cronos { --chain-color: #002D74; --chain-color-glow: rgba(0, 87, 183, 0.4); }
.glow-linea { --chain-color: #61DFFF; --chain-color-glow: rgba(97, 223, 255, 0.4); }
.glow-mantle { --chain-color: #65A2FF; --chain-color-glow: rgba(101, 162, 255, 0.4); }
.glow-berachain { --chain-color: #7C3AED; --chain-color-glow: rgba(168, 85, 247, 0.4); }
.glow-scroll { --chain-color: #FFEEDA; --chain-color-glow: rgba(255, 217, 179, 0.4); }
.glow-pulsechain { --chain-color: #E052DB; --chain-color-glow: rgba(0, 212, 255, 0.4); }
.glow-stellar { --chain-color: #14B6E7; --chain-color-glow: rgba(0, 212, 255, 0.4); }
.glow-near { --chain-color: #00C08B; --chain-color-glow: rgba(0, 236, 153, 0.4); }
.glow-gnosis { --chain-color: #04795B; --chain-color-glow: rgba(0, 168, 120, 0.4); }
.glow-flow { --chain-color: #00EF8B; --chain-color-glow: rgba(0, 255, 153, 0.4); }
.glow-sonic { --chain-color: #1969FF; --chain-color-glow: rgba(77, 143, 255, 0.4); }
.glow-kava { --chain-color: #FF564F; --chain-color-glow: rgba(255, 122, 116, 0.4); }
.glow-blast { --chain-color: #FCFC03; --chain-color-glow: rgba(255, 255, 102, 0.4); }
.glow-soneium { --chain-color: #0072CE; --chain-color-glow: rgba(51, 153, 255, 0.4); }
.glow-worldchain { --chain-color: #4A90D9; --chain-color-glow: rgba(74, 144, 217, 0.4); }
.glow-zksync { --chain-color: #8C8DFC; --chain-color-glow: rgba(165, 166, 255, 0.4); }
.glow-osmosis { --chain-color: #5E12A0; --chain-color-glow: rgba(138, 43, 226, 0.4); }

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Pulse animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Speed Gauge */
.speed-gauge {
    position: relative;
}

.speed-bar {
    position: relative;
    box-shadow: 0 0 10px currentColor;
    animation: speedPulse 2s ease-in-out infinite;
}

@keyframes speedPulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; box-shadow: 0 0 15px currentColor; }
}

/* Speed comparison badge */
.speed-badge {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

.speed-badge.slow { background: #7f1d1d; color: #fca5a5; }
.speed-badge.medium { background: #78350f; color: #fcd34d; }
.speed-badge.fast { background: #14532d; color: #86efac; }
.speed-badge.ultra { background: #164e63; color: #67e8f9; }

/* Filter buttons */
.filter-btn {
    background: rgba(55, 65, 81, 0.5);
    color: #9CA3AF;
    border: 1px solid transparent;
}

.filter-btn:hover {
    background: rgba(75, 85, 99, 0.7);
    color: #E5E7EB;
}

.filter-btn.active {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2) 0%, rgba(59, 130, 246, 0.2) 100%);
    color: #22D3EE;
    border-color: rgba(6, 182, 212, 0.5);
}

/* Card hide animation */
.chain-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, transform 0.3s ease;
}

.chain-card.hidden-card {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

/* Select styling */
select option {
    background: #1F2937;
    color: white;
}

/* Modal animation */
#info-modal {
    transition: opacity 0.3s ease;
}

#info-modal > div {
    transition: transform 0.3s ease;
}

#info-modal.flex > div {
    transform: scale(1);
}

/* Toast Animation */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 20px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

.animate-slide-up {
    animation: slideUp 0.3s ease forwards;
}

.chatgpt-toast {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* ASK CHATGPT Button Styling */
#ask-chatgpt-btn {
    background: linear-gradient(135deg, #10a37f 0%, #0d8a6a 100%);
    box-shadow: 0 4px 15px rgba(16, 163, 127, 0.3);
}

#ask-chatgpt-btn:hover {
    background: linear-gradient(135deg, #0d8a6a 0%, #0b7a5e 100%);
    box-shadow: 0 6px 20px rgba(16, 163, 127, 0.5);
    transform: translateY(-2px);
}

#ask-chatgpt-btn:active {
    transform: translateY(0);
}

/* Theme Toggle Animation */
#theme-toggle {
    transition: all 0.3s ease;
}

#theme-toggle i {
    transition: transform 0.3s ease;
}

#theme-toggle:hover i {
    transform: scale(1.1);
}

/* ==================== BUY BUTTON (Golden) ==================== */
.buy-btn {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 50%, #FF8C00 100%);
    color: #1a1a2e;
    box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
    border: 1px solid rgba(255, 215, 0, 0.5);
}

.buy-btn:hover {
    background: linear-gradient(135deg, #FFE44D 0%, #FFB732 50%, #FFA000 100%);
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.5);
    transform: translateY(-2px);
}

.buy-btn:active {
    transform: translateY(0);
}

/* Shine animation */
.buy-btn {
    position: relative;
    overflow: hidden;
}

.buy-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

/* Light mode adjustments */
body.light-mode .buy-btn {
    box-shadow: 0 2px 10px rgba(255, 165, 0, 0.4);
}

/* ==================== SWAP BUTTON (Blue/Cyan) ==================== */
.swap-btn {
    background: linear-gradient(135deg, #00D4FF 0%, #0099CC 50%, #006699 100%);
    color: white;
    box-shadow: 0 2px 10px rgba(0, 212, 255, 0.3);
    border: 1px solid rgba(0, 212, 255, 0.5);
    position: relative;
    overflow: hidden;
}

.swap-btn:hover {
    background: linear-gradient(135deg, #33DDFF 0%, #00AADD 50%, #0077AA 100%);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.5);
    transform: translateY(-2px);
}

.swap-btn:active {
    transform: translateY(0);
}

.swap-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shine 3s infinite;
}

.swap-btn i {
    transition: transform 0.3s ease;
}

.swap-btn:hover i {
    transform: rotate(180deg);
}

body.light-mode .swap-btn {
    box-shadow: 0 2px 10px rgba(0, 153, 204, 0.4);
}

/* BUY Button Modal (Larger Golden) */
.buy-btn-modal {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 50%, #FF8C00 100%);
    color: #1a1a2e;
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.4);
    border: 2px solid rgba(255, 215, 0, 0.6);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.buy-btn-modal:hover {
    background: linear-gradient(135deg, #FFE44D 0%, #FFB732 50%, #FFA000 100%);
    box-shadow: 0 6px 30px rgba(255, 215, 0, 0.6);
    transform: translateY(-2px) scale(1.02);
}

.buy-btn-modal:active {
    transform: translateY(0) scale(1);
}

.buy-btn-modal::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.5),
        transparent
    );
    animation: shine 2.5s infinite;
}

/* Pulse glow effect */
.buy-btn-modal::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #FFD700, #FF8C00, #FFD700);
    border-radius: inherit;
    z-index: -1;
    animation: pulse-glow 2s ease-in-out infinite;
    opacity: 0.5;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.02); }
}

/* SWAP Button Modal (Blue/Cyan - same as main page) */
.swap-btn-modal {
    background: linear-gradient(135deg, #00D4FF 0%, #0099CC 50%, #006699 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
    border: 2px solid rgba(0, 212, 255, 0.6);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.swap-btn-modal:hover {
    background: linear-gradient(135deg, #33DDFF 0%, #00AADD 50%, #0077AA 100%);
    box-shadow: 0 6px 30px rgba(0, 212, 255, 0.6);
    transform: translateY(-2px) scale(1.02);
}

.swap-btn-modal:active {
    transform: translateY(0) scale(1);
}

.swap-btn-modal::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: shine 2.5s infinite;
}

/* Pulse glow effect for SWAP */
.swap-btn-modal::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #00D4FF, #006699, #00D4FF);
    border-radius: inherit;
    z-index: -1;
    animation: pulse-glow-swap 2s ease-in-out infinite;
    opacity: 0.5;
}

@keyframes pulse-glow-swap {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.02); }
}

/* ==================== DONATE BUTTON (Bitcoin Orange) ==================== */
.donate-btn {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.2) 0%, rgba(234, 88, 12, 0.2) 100%);
    color: #f97316;
    border: 1px solid rgba(249, 115, 22, 0.4);
    box-shadow: 0 2px 10px rgba(249, 115, 22, 0.1);
}

.donate-btn:hover {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.3) 0%, rgba(234, 88, 12, 0.3) 100%);
    border-color: rgba(249, 115, 22, 0.6);
    box-shadow: 0 4px 20px rgba(249, 115, 22, 0.2);
    transform: translateY(-2px);
}

.donate-btn .fa-heart {
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Donate Modal */
#donate-modal.flex {
    display: flex !important;
}

body.light-mode .donate-btn {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.15) 0%, rgba(234, 88, 12, 0.15) 100%);
}

body.light-mode #donate-modal > div {
    background: linear-gradient(145deg, #ffffff 0%, #fff7ed 100%);
    border-color: rgba(249, 115, 22, 0.3);
}

body.light-mode #donate-modal h3 {
    color: #1a1a2e;
}

body.light-mode #donate-modal .bg-black\/50 {
    background: rgba(249, 115, 22, 0.1);
}