:root {
    /* Default Light Theme Variables */
    --bg-color: #ffffff;
    --text-color: #111111;
    --accent-color: #333333;
    --secondary-text: #666666;
    --dot-color: rgba(0, 0, 0, 0.1);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --spacing-unit: 1.5rem;
    --max-width: 600px;
}

/* Dark Theme Variables (System Preference) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0a0a0a;
        --text-color: #ededed;
        --accent-color: #cccccc;
        --secondary-text: #888888;
        --dot-color: rgba(255, 255, 255, 0.1);
    }
}

/* Manual Theme Overrides */
[data-theme="light"] {
    --bg-color: #ffffff;
    --text-color: #111111;
    --accent-color: #333333;
    --secondary-text: #666666;
    --dot-color: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-color: #0a0a0a;
    --text-color: #ededed;
    --accent-color: #cccccc;
    --secondary-text: #888888;
    --dot-color: rgba(255, 255, 255, 0.1);
}

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

/* Theme Toggle Styles */
.theme-toggle {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    display: flex;
    gap: 0.5rem;
    background: var(--bg-color);
    padding: 0.25rem;
    border-radius: 20px;
    border: 1px solid var(--dot-color);
}

.theme-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    color: var(--secondary-text);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s, background-color 0.2s;
}

.theme-btn:hover {
    color: var(--text-color);
}

.theme-btn.active {
    color: var(--bg-color);
    background-color: var(--text-color);
}

body {
    background-color: var(--bg-color);
    background-image: radial-gradient(var(--dot-color) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: moveBackground 60s linear infinite;
    color: var(--text-color);
    font-family: var(--font-family);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-unit);
    transition: background-color 0.3s ease, color 0.3s ease;
}

@keyframes moveBackground {
    from {
        background-position: 0 0;
    }

    to {
        background-position: 30px 30px;
    }
}

.container {
    width: 100%;
    max-width: var(--max-width);
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2);
}

.hero {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

h1 {
    font-weight: 600;
    font-size: 2.5rem;
    letter-spacing: -0.05em;
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid var(--text-color);
    transition: transform 0.3s ease, border-color 0.3s ease;
    flex-shrink: 0;
}

.avatar:hover {
    transform: scale(1.05);
}

.subtitle-wrapper {
    position: relative;
    display: inline-block;
}

.subtitle {
    color: var(--secondary-text);
    font-size: 1.1rem;
    font-weight: 300;
    line-height: 1.5;
}

.subtitle.placeholder {
    visibility: hidden;
}

.subtitle#typewriter {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}

@media (max-width: 480px) {
    .hero {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}

.footer {
    margin-top: 2rem;
    font-size: 0.8rem;
    color: var(--secondary-text);
    text-align: center;
}

.cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background-color: var(--accent-color);
    margin-left: 2px;
    vertical-align: middle;
    animation: blink 1s step-end infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

h2 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--secondary-text);
    margin-bottom: 1rem;
    font-weight: 600;
}

p {
    font-weight: 300;
    font-size: 1.05rem;
}

.button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--text-color);
    color: var(--bg-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.button:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.button-outline {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--text-color);
}

.button-outline:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

.icon {
    width: 1em;
    height: 1em;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}