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

/* ── Theme Variables ── */
:root {
    --transition-speed: 0.4s;
}

[data-theme="light"] {
    --bg: #fafaf8;
    --text: #1c1b18;
    --accent: #4a4a48;
    --accent-warm: #2d6a4f;
    --muted: #555550;
    --border: #d4d4d4;
    --border-dashed: #c0bfb8;
}

[data-theme="dark"] {
    --bg: #111110;
    --text: #f0ece4;
    --accent: #a0a09a;
    --accent-warm: #52d89f;
    --muted: #9a9790;
    --border: #2e2e2c;
    --border-dashed: #3a3a36;
}

/* ── Base ── */
body {
    font-family: 'Crimson Pro', serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 18px;
    transition: background var(--transition-speed) ease, color var(--transition-speed) ease;
}

.container {
    max-width: 680px;
    margin: 0 auto;
    padding: 80px 24px;
}

/* ── Theme Toggle ── */
.theme-toggle {
    position: fixed;
    top: 28px;
    right: 28px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
}

.toggle-track {
    width: 44px;
    height: 24px;
    background: var(--border);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: background 0.3s ease;
}

.toggle-track:hover {
    background: var(--muted);
}

.toggle-thumb {
    width: 18px;
    height: 18px;
    background: var(--text);
    border-radius: 50%;
    position: absolute;
    top: 3px;
    left: 3px;
    transition: transform 0.3s ease, background 0.3s ease;
}

[data-theme="dark"] .toggle-thumb {
    transform: translateX(20px);
}

/* ── Header ── */
header {
    margin-bottom: 100px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 40px;
    position: relative;
}

header::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 80px;
    height: 3px;
    background: var(--accent-warm);
}

h1 {
    font-size: 48px;
    font-weight: 300;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    line-height: 1.1;
}

.subtitle {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 24px;
}

.personal-intro {
    font-size: 19px;
    color: var(--muted);
    line-height: 1.8;
}

/* ── Sections ── */
section {
    margin-bottom: 80px;
}

h2 {
    font-size: 14px;
    font-family: 'IBM Plex Mono', monospace;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 24px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

h2::before {
    content: "";
    width: 8px;
    height: 8px;
    background: var(--accent-warm);
    border-radius: 1px;
    display: inline-block;
    flex-shrink: 0;
}

p {
    margin-bottom: 16px;
}

/* ── Links ── */
a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s, color 0.2s;
}

a:hover {
    border-bottom-color: var(--accent);
}

/* ── Block Links ── */
a.block-link {
    display: block;
    margin-bottom: 36px;
    padding-left: 16px;
    border-left: 2px solid var(--border);
    border-bottom: none;
    color: inherit;
    transition: border-color 0.3s ease;
}

a.block-link:hover {
    border-left-color: var(--accent-warm);
    border-bottom: none;
}

.block-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: var(--accent-warm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
    font-weight: 500;
}

.block-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text);
}

.block-company {
    color: var(--accent-warm);
    font-size: 15px;
    font-family: 'IBM Plex Mono', monospace;
    margin-bottom: 8px;
    font-weight: 500;
}

.block-desc {
    font-size: 17px;
    color: var(--muted);
}

/* ── View More ── */
.view-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    color: var(--accent-warm);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
    margin-top: -12px;
}

.view-more:hover {
    border-bottom-color: var(--accent-warm);
    color: var(--accent-warm);
}

.view-more::after {
    content: "\2192";
}

/* ── Education ── */
.edu-block {
    padding-left: 16px;
    border-left: 2px solid var(--border);
    transition: border-color 0.3s ease;
}

.edu-block:hover {
    border-left-color: var(--accent-warm);
}

.edu-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
}

.edu-title .distinction {
    color: var(--accent-warm);
    font-style: italic;
    font-weight: 600;
}

.edu-company {
    color: var(--accent-warm);
    font-size: 15px;
    font-family: 'IBM Plex Mono', monospace;
    margin-bottom: 8px;
    font-weight: 500;
}

.edu-desc {
    font-size: 17px;
    color: var(--muted);
}

/* ── Explorations ── */
a.exploration-link {
    display: block;
    margin-bottom: 36px;
    padding: 24px;
    border: 1px dashed var(--border-dashed);
    color: inherit;
    transition: border-color 0.3s ease;
}

a.exploration-link:hover {
    border-color: var(--accent-warm);
    border-style: solid;
}

.exploration-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text);
}

.exploration-meta {
    color: var(--accent-warm);
    font-size: 14px;
    font-family: 'IBM Plex Mono', monospace;
    margin-bottom: 8px;
    font-weight: 500;
}

.exploration-desc {
    font-size: 17px;
    color: var(--muted);
}

/* ── Connect ── */
.connect-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.connect-links a {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
    letter-spacing: 0.02em;
    padding-bottom: 2px;
    border-bottom: 1px solid var(--border);
}

.connect-links a:hover {
    border-bottom-color: var(--accent-warm);
    color: var(--accent-warm);
}

/* ── Footer ── */
footer {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    flex-wrap: wrap;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.02em;
}

.footer-tagline {
    font-style: italic;
    text-align: right;
}

/* ── Animations ── */
.fade-in {
    opacity: 0;
    transform: translateY(12px);
    animation: fadeUp 0.6s ease forwards;
}

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

section:nth-of-type(1) { animation-delay: 0.1s; }
section:nth-of-type(2) { animation-delay: 0.15s; }
section:nth-of-type(3) { animation-delay: 0.2s; }
section:nth-of-type(4) { animation-delay: 0.25s; }
section:nth-of-type(5) { animation-delay: 0.3s; }
section:nth-of-type(6) { animation-delay: 0.35s; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .container {
        padding: 60px 20px;
    }

    h1 {
        font-size: 36px;
    }

    .theme-toggle {
        top: 16px;
        right: 16px;
    }

    .theme-toggle span {
        display: none;
    }
}