:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --card-bg: #f5f5f5;
    --card-hover: #e8e8e8;
    --border-color: #e0e0e0;
    --shadow: rgba(0, 0, 0, 0.1);
    --accent-color: #667eea;
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #ffffff;
    --card-bg: #2d2d2d;
    --card-hover: #3a3a3a;
    --border-color: #404040;
    --shadow: rgba(0, 0, 0, 0.3);
    --accent-color: #8b9dff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    /* Use Slfdreamer site-wide with system fallbacks */
    font-family: 'Slfdreamer', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    /* ensure content isn't obscured by a fixed footer */
    padding-bottom: 120px;
}

.container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.left-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.right-section {
    display: flex;
    flex-direction: column;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--card-bg);
    border: 1px solid transparent;
    border-radius: 12px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
    z-index: 1000;
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}

.theme-toggle:hover {
    background: var(--card-hover);
    transform: translateY(-2px);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--text-color);
}

.sun-icon { display: none; }
.moon-icon { display: block; }

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }

/* Tab buttons (brand page) */
.tab { 
    padding: 6px 10px; 
    border-radius: 8px; 
    border: 1px solid var(--border-color); 
    background: transparent; 
    color: var(--text-color); 
    cursor: pointer; 
    font-weight: 600; 
}
.tab.active { 
    background: linear-gradient(180deg, var(--accent-color), color-mix(in srgb, var(--accent-color) 82%, black 8%));
    color: white; 
    border-color: transparent;
    box-shadow: 0 8px 28px rgba(0,0,0,0.08);
}

/* badge sizing */
.badge-sample { width: 160px; height: auto; display:inline-block; margin:8px; }

.profile {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 10px;
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--border-color);
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-icon {
    width: 50px;
    height: 50px;
    color: var(--text-color);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.name {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.2;
}

.description {
    font-size: 1.125rem; /* ~20px at 18px base */
    color: var(--text-color);
    opacity: 0.95;
    line-height: 1.6;
    font-weight: 600;
    margin-bottom: 16px;
}

.button-group {
    display: flex;
    gap: 12px;
    align-items: center;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    background: linear-gradient(180deg, var(--accent-color), color-mix(in srgb, var(--accent-color) 85%, black 15%));
    border: 0;
    border-radius: 10px;
    text-decoration: none;
    color: #ffffff;
    font-weight: 700;
    font-size: 15px;
    transition: transform 0.16s ease, box-shadow 0.16s ease, opacity 0.12s ease;
    box-shadow: 0 6px 24px rgba(102,126,234,0.12);
}

.contact-button:hover {
    transform: translateY(-3px) scale(1.01);
    box-shadow: 0 12px 36px rgba(102,126,234,0.14);
}

.github-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px var(--shadow);
}

.github-button:hover {
    background: var(--card-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.github-button svg {
    width: 20px;
    height: 20px;
}


.links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.link-button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 18px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--card-bg) 98%, black 2%), var(--card-bg));
    border: 1px solid var(--border-color);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 15px;
    transition: transform 0.14s ease, box-shadow 0.14s ease, background 0.14s ease;
    box-shadow: 0 6px 20px rgba(10,10,10,0.04);
}

.link-button:hover {
    background: var(--card-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.08);
}

.link-subtitle { font-size:12px; opacity:0.8; margin-top:6px; }

/* Codebox and brand page tweaks */
pre.codebox { 
    background: var(--card-bg);
    color: var(--text-color);
    padding: 14px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    position: relative;
}

button.copy-btn { 
    position: absolute; 
    right: 10px; 
    top: 10px; 
    background: transparent; 
    color: var(--text-color); 
    border: 1px solid var(--border-color); 
    padding: 6px 8px; 
    border-radius: 6px; 
    cursor: pointer; 
}

button.copy-btn:hover { background: var(--card-hover); transform: translateY(-2px); }

/* code token colors tuned for both themes */
.token-tag { color: #d97316; }
.token-attr { color: #60a5fa; }
.token-string { color: #10b981; }
.token-link { color: #7dd3fc; text-decoration:underline; }

/* smaller screen brand layout improvements */
@media (max-width: 900px) {
  .brand-hero { flex-direction: column; align-items: flex-start; }
  .brand-logo { width: 84px; height:84px; }
}

/* Single-column container for long content pages like brand guidelines */
.container.single-column {
    grid-template-columns: 1fr;
    max-width: 900px;
    gap: 28px;
    padding: 24px;
}

/* code font and sizing */
pre.codebox, pre.codebox code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, 'Roboto Mono', 'Courier New', monospace; font-size:14px; }

.link-title {
    flex: 1;
}

@media (max-width: 768px) {
    body {
        padding: 30px 16px;
    }

    .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .profile {
        flex-direction: column;
        text-align: center;
    }

    .name {
        font-size: 28px;
    }

    .description {
        text-align: center;
    }

    .button-group {
        justify-content: center;
    }

    .theme-toggle {
        width: 45px;
        height: 45px;
        top: 15px;
        right: 15px;
    }

    .link-button {
        padding: 18px 20px;
        font-size: 15px;
    }
}

/* site-wide footer fixed to bottom */
footer.site-footer {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 10px 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
footer.site-footer a { color: var(--text-color); text-decoration: none; font-weight:600 }