@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Newsreader:ital,wght@1,400;1,500&family=JetBrains+Mono:wght@400;500&display=swap');
@import url('https://api.fontshare.com/v2/css?f[]=general-sans@400,500,600&display=swap');

:root {
    --bg: #0a0a0a;
    --surface: rgba(255, 255, 255, 0.02);
    --surface-hover: rgba(255, 255, 255, 0.045);
    --fg-primary: #f2f2f4;
    --fg-secondary: #8f8f95;
    --border: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(255, 255, 255, 0.24);
    --accent: #e6e6ea;
    --accent-glow: rgba(255, 255, 255, 0.12);
    --font-display: 'General Sans', sans-serif;
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-serif: 'Newsreader', serif;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 7rem;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
}

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

::selection {
    background: var(--accent);
    color: var(--bg);
}

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--fg-secondary);
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--fg-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    position: relative;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: -2;
    mask-image: radial-gradient(circle at 50% 30%, black 0%, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at 50% 30%, black 0%, transparent 80%);
}

a {
    color: var(--fg-primary);
    text-decoration: none;
    transition: all 0.25s ease;
}

ul {
    list-style: none;
}

.titlebar {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 2rem);
    max-width: 820px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.85rem 1.25rem;
    background: rgba(10, 10, 10, 0.75);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
    font-family: var(--font-mono);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.traffic-lights {
    display: flex;
    gap: 0.45rem;
    flex-shrink: 0;
}

.dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.prompt {
    color: var(--accent);
    font-size: 0.8rem;
    white-space: nowrap;
}

.tabs {
    display: flex;
    gap: 1.25rem;
    margin-left: auto;
    font-size: 0.78rem;
}

.tab {
    color: var(--fg-secondary);
}

.tab:hover, .tab.active {
    color: var(--fg-primary);
}

main {
    max-width: 760px;
    margin: 0 auto;
    padding: calc(var(--space-xl) + var(--space-lg)) var(--space-md) var(--space-xl);
}

.hero {
    margin-bottom: var(--space-lg);
}

h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 500;
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: var(--space-sm);
    background: linear-gradient(180deg, #ffffff 0%, var(--fg-secondary) 100%);
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.intro {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--fg-secondary);
    max-width: 560px;
    font-weight: 300;
}

.line-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 1.2rem;
}

.section {
    margin-bottom: var(--space-xl);
    scroll-margin-top: 6.5rem;
}

.content-block {
    font-size: 1.05rem;
    color: var(--fg-secondary);
    max-width: 650px;
    font-weight: 300;
}

.content-block i {
    font-family: var(--font-serif);
    font-style: italic;
}

.content-block p {
    margin-bottom: 0.9rem;
}

.content-block p:last-child {
    margin-bottom: 0;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

.copy-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--fg-primary);
    padding: 0.75rem 1.2rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    border-color: var(--accent);
    background: var(--surface-hover);
    box-shadow: 0 0 20px var(--accent-glow);
}

.copy-badge {
    font-size: 0.7rem;
    color: var(--accent);
    background: rgba(255, 255, 255, 0.06);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: all 0.2s ease;
}

.copy-badge.copied {
    color: #6fcf7a;
    background: rgba(111, 207, 122, 0.1);
    border-color: rgba(111, 207, 122, 0.3);
}

.contact-link {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--fg-secondary);
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0;
}

.contact-link .arrow {
    color: var(--accent);
    transition: transform 0.25s ease;
}

.contact-link:hover {
    color: var(--fg-primary);
}

.contact-link:hover .arrow {
    transform: translate(2px, -2px);
}

.inline-link {
    font-style: italic;
    text-decoration: underline;
    text-underline-offset: 3px;
    color: var(--fg-primary);
    transition: color 0.25s ease;
}

.inline-link:hover {
    color: var(--accent);
}

footer {
    border-top: 1px solid var(--border);
    padding: var(--space-lg) var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--fg-secondary);
}

.footer-content {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .contact-link .arrow, a {
        transition: none;
    }
}

@media (max-width: 600px) {
    .titlebar {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem;
        top: 0.75rem;
        padding: 0.75rem 1rem;
    }
    .prompt {
        display: none;
    }
    .tabs {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}
.text-mid {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--fg-secondary);
}