/* CSS Variables - Silver Theme */
:root {
    --bg-primary: #0a0a0c;
    --bg-secondary: #121216;
    --bg-card: #1a1a20;
    --border-color: #3a3a44;

    --text-primary: #e8e8ec;
    --text-secondary: #a8a8b4;
    --text-muted: #68687a;

    --silver-light: #f0f0f4;
    --silver: #c0c0cc;
    --silver-dark: #8888a0;
    --silver-shine: #ffffff;

    --accent-gold: #d4af37;
    --btn-text: #0a0a0c;
    --btn-reset: #8b4a4a;
    --btn-save: linear-gradient(135deg, #c0c0cc 0%, #e8e8ec 50%, #a0a0b0 100%);

    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;

    --shadow-silver: 0 0 20px rgba(192, 192, 204, 0.15);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);

    --gradient-silver: linear-gradient(135deg, #808090 0%, #c0c0cc 25%, #e8e8ec 50%, #c0c0cc 75%, #909098 100%);
    --gradient-silver-subtle: linear-gradient(135deg, rgba(192,192,204,0.1) 0%, rgba(232,232,236,0.05) 50%, rgba(192,192,204,0.1) 100%);

    --radius-sm: 4px;
    --radius-md: 8px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    background-image:
        radial-gradient(ellipse at top, rgba(192,192,204,0.03) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(192,192,204,0.02) 0%, transparent 50%);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Floating background logo */
.floating-bg-logo {
    position: fixed;
    top: 0;
    left: 0;
    width: 400px;
    height: 400px;
    background-image: url('logo.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.05;
    pointer-events: none;
    z-index: 0;
    animation: bounceLogo 20s linear infinite;
}

@keyframes bounceLogo {
    0% {
        top: 10%;
        left: 10%;
    }
    12.5% {
        top: 5%;
        left: 60%;
    }
    25% {
        top: 40%;
        left: 75%;
    }
    37.5% {
        top: 70%;
        left: 55%;
    }
    50% {
        top: 60%;
        left: 15%;
    }
    62.5% {
        top: 30%;
        left: 5%;
    }
    75% {
        top: 15%;
        left: 35%;
    }
    87.5% {
        top: 45%;
        left: 45%;
    }
    100% {
        top: 10%;
        left: 10%;
    }
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 1;
    align-items: center;
    padding: 1rem 2rem;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 20px rgba(192,192,204,0.05);
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(192,192,204,0.3));
}

.logo-text-wrapper {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-silver);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    letter-spacing: 2px;
}

.logo-500 {
    background: linear-gradient(135deg, #b8b8c8 0%, #ffffff 30%, #e8e8f0 50%, #ffffff 70%, #c0c0d0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 8px rgba(255,255,255,0.6)) drop-shadow(0 0 15px rgba(192,192,220,0.4));
    animation: silverShine 3s ease-in-out infinite;
}

@keyframes silverShine {
    0%, 100% {
        filter: drop-shadow(0 0 8px rgba(255,255,255,0.6)) drop-shadow(0 0 15px rgba(192,192,220,0.4));
    }
    50% {
        filter: drop-shadow(0 0 12px rgba(255,255,255,0.9)) drop-shadow(0 0 25px rgba(192,192,220,0.7));
    }
}

.logo-subtitle {
    font-family: var(--font-display);
    font-size: 0.65rem;
    color: var(--silver-dark);
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.x-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--silver);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    background: var(--gradient-silver-subtle);
}

.x-link:hover {
    background: var(--gradient-silver);
    color: var(--bg-primary);
    box-shadow: var(--shadow-silver);
    border-color: var(--silver);
}

/* Main Meme Builder */
.meme-builder {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

/* Copy Address */
.copy-address {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    margin-bottom: 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-display);
}

.copy-address:hover {
    border-color: var(--silver);
    background: var(--bg-card);
    box-shadow: 0 0 15px rgba(192,192,204,0.2);
}

.copy-address:active {
    transform: scale(0.98);
}

.copy-address.copied {
    border-color: #4ade80;
    background: rgba(74, 222, 128, 0.1);
}

.copy-address.copied .address-text {
    color: #4ade80;
}

.address-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--silver);
    letter-spacing: 1px;
    word-break: break-all;
}

.copy-icon {
    color: var(--text-muted);
    flex-shrink: 0;
    transition: color 0.2s ease;
}

.copy-address:hover .copy-icon {
    color: var(--silver);
}

/* Preview Area */
.preview-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 2rem;
}

.preview-container {
    background: var(--bg-card);
    border: 2px solid var(--silver-dark);
    box-shadow:
        var(--shadow-md),
        0 0 30px rgba(192,192,204,0.1),
        inset 0 1px 0 rgba(255,255,255,0.05);
    padding: 0;
    position: relative;
}

.preview-container::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 20%;
    right: 20%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--silver-light), transparent);
}

#meme-canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

.canvas-hint {
    margin-top: 1rem;
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--silver-dark);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* Section Labels */
.section-label {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--silver);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    position: relative;
    display: inline-block;
}

.section-label::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, var(--silver), transparent);
}

/* Elements Section */
.elements-section {
    margin-bottom: 2rem;
}

.elements-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    max-height: 400px;
    overflow-y: auto;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.3);
}

.element-btn {
    width: 50px;
    height: 50px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    cursor: pointer;
    overflow: hidden;
    transition: all 0.2s ease;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.element-btn:hover {
    border-color: var(--silver);
    transform: scale(1.1);
    z-index: 10;
    box-shadow: 0 0 15px rgba(192,192,204,0.3);
}

.element-btn .symbol {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    text-shadow: 0 1px 2px rgba(0,0,0,0.8), 0 0 4px rgba(0,0,0,0.5);
    z-index: 1;
}

.element-btn .number {
    font-family: var(--font-display);
    font-size: 0.45rem;
    color: var(--text-primary);
    position: absolute;
    top: 2px;
    left: 3px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.8);
    z-index: 1;
}

.element-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Element category colors */
.element-btn.alkali-metal { background: linear-gradient(135deg, #ff6b6b, #ee5a5a); }
.element-btn.alkaline-earth { background: linear-gradient(135deg, #ffa94d, #ff922b); }
.element-btn.transition-metal { background: linear-gradient(135deg, #ffd43b, #fab005); }
.element-btn.post-transition { background: linear-gradient(135deg, #69db7c, #51cf66); }
.element-btn.metalloid { background: linear-gradient(135deg, #4dabf7, #339af0); }
.element-btn.nonmetal { background: linear-gradient(135deg, #9775fa, #845ef7); }
.element-btn.halogen { background: linear-gradient(135deg, #f783ac, #e64980); }
.element-btn.noble-gas { background: linear-gradient(135deg, #66d9e8, #22b8cf); }
.element-btn.lanthanide { background: linear-gradient(135deg, #a9e34b, #94d82d); }
.element-btn.actinide { background: linear-gradient(135deg, #ff8787, #fa5252); }
.element-btn.unknown { background: linear-gradient(135deg, #868e96, #495057); }

/* Stickers Section */
.stickers-section {
    margin-bottom: 2rem;
}

.stickers-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.3);
}

.sticker-btn {
    width: 60px;
    height: 60px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    cursor: pointer;
    overflow: hidden;
    transition: all 0.2s ease;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sticker-btn:hover {
    border-color: var(--silver);
    transform: scale(1.15);
    z-index: 10;
    box-shadow: 0 0 20px rgba(192,192,204,0.4);
    background: var(--gradient-silver-subtle);
}

.sticker-btn img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Action Buttons */
.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.75rem;
}

.action-btn {
    padding: 1rem 2rem;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
}

.action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.action-btn:hover::before {
    left: 100%;
}

.action-btn:hover {
    transform: translateY(-2px);
}

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

.text-btn {
    background: var(--bg-card);
    color: var(--silver);
    border: 1px solid var(--silver-dark);
}

.text-btn:hover {
    border-color: var(--silver);
    box-shadow: 0 0 20px rgba(192,192,204,0.2);
}

.reset-btn {
    background: var(--btn-reset);
    color: var(--silver-light);
}

.reset-btn:hover {
    background: #9b5a5a;
    box-shadow: 0 0 20px rgba(139,74,74,0.3);
}

.save-btn {
    background: var(--btn-save);
    color: var(--btn-text);
    border: 1px solid var(--silver);
}

.save-btn:hover {
    box-shadow: var(--shadow-silver), 0 0 30px rgba(192,192,204,0.4);
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md), var(--shadow-silver);
    width: 90%;
    max-width: 400px;
    border: 1px solid var(--silver-dark);
    position: relative;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--silver), transparent);
}

.modal-content h3 {
    font-family: var(--font-display);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    text-align: center;
    color: var(--silver);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.input-group {
    margin-bottom: 1rem;
}

.input-group label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--silver-dark);
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.input-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--silver);
    box-shadow: 0 0 10px rgba(192,192,204,0.2);
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.modal-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.modal-btn {
    padding: 0.75rem 1.5rem;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.modal-btn:hover {
    transform: translateY(-1px);
}

.modal-btn.cancel {
    background: var(--bg-secondary);
    color: var(--silver);
    border: 1px solid var(--border-color);
}

.modal-btn.cancel:hover {
    border-color: var(--silver-dark);
}

.modal-btn.apply {
    background: var(--btn-save);
    color: var(--btn-text);
}

.modal-btn.apply:hover {
    box-shadow: 0 0 15px rgba(192,192,204,0.3);
}

/* Scrollbar styling */
.elements-grid::-webkit-scrollbar {
    width: 8px;
}

.elements-grid::-webkit-scrollbar-track {
    background: var(--bg-primary);
    border-radius: 4px;
}

.elements-grid::-webkit-scrollbar-thumb {
    background: var(--silver-dark);
    border-radius: 4px;
}

.elements-grid::-webkit-scrollbar-thumb:hover {
    background: var(--silver);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 1rem;
    }

    .logo-img {
        width: 40px;
        height: 40px;
    }

    .logo-text {
        font-size: 1.4rem;
    }

    .meme-builder {
        padding: 1rem;
    }

    #meme-canvas {
        width: 100%;
        height: auto;
    }

    .element-btn {
        width: 40px;
        height: 40px;
    }

    .element-btn .symbol {
        font-size: 0.75rem;
    }

    .action-btn {
        padding: 0.875rem 1rem;
        font-size: 0.75rem;
        letter-spacing: 1px;
    }
}

@media (max-width: 480px) {
    .element-btn {
        width: 35px;
        height: 35px;
    }

    .element-btn .symbol {
        font-size: 0.65rem;
    }

    .element-btn .number {
        display: none;
    }

    .action-buttons {
        grid-template-columns: 1fr;
    }
}