:root {
    --bg: #080810;
    --surface: #0e0e1a;
    --surface2: #14142a;
    --border: rgba(120,120,255,0.12);
    --border2: rgba(120,120,255,0.22);
    --accent: #6394ff;
    --accent2: #00e5c8;
    --text: #e8e8f0;
    --muted: #7878a0;
    --dim: #3a3a5c;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Syne', sans-serif;
    overflow-x: hidden;
}

/* Grid background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
            linear-gradient(rgba(108,99,255,0.04) 1px, transparent 1px),
            linear-gradient(90deg, rgba(108,99,255,0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
    z-index: 1;
}


/* ---- MATRIX BACKGROUND ---- */
#matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.45;
    filter: blur(1.5px);
}

/* ---- NAV ---- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 2.5rem;
    background: rgba(8,8,16,0.8);
    backdrop-filter: blur(5px);
    border-bottom: 1px solid var(--border);
    opacity: 0.99;
}

.nav-logo {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 0.08em;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent2); }

.nav-social {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-left: 1.5rem;
    padding-left: 1.5rem;
    border-left: 1px solid var(--border);
}

.nav-social-link {
    color: var(--muted);
    display: flex;
    align-items: center;
    transition: color 0.2s;
}

.nav-social-link:hover { color: var(--accent2); }

@media (max-width: 560px) {
    .nav-social { display: none; }
}

/* ---- SECTIONS ---- */
section {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ---- HERO ---- */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 5rem;
    max-width: 100%;
    padding-left: 6vw;
    padding-right: 6vw;
}

.hero-tag {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    color: var(--accent2);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.hero-tag::before {
    content: '';
    display: block;
    width: 32px;
    height: 1px;
    background: var(--accent2);
}

.hero-name {
    font-size: clamp(3.5rem, 8vw, 7rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    color: #fff;
    margin-bottom: 0.25rem;
}

.hero-name span {
    color: var(--accent);
}

.hero-subtitle {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    color: var(--muted);
    margin-bottom: 2.5rem;
    margin-top: 1rem;
    max-width: 700px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    padding: 0.8rem 1.8rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover { background: #7c74ff; transform: translateY(-2px); }

.btn-outline {
    border: 1px solid var(--border2);
    color: var(--text);
    padding: 0.8rem 1.8rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: border-color 0.2s, transform 0.15s;
}

.btn-outline:hover { border-color: var(--accent); transform: translateY(-2px); }

/* Scroll indicator */
.scroll-hint {
    position: absolute;
    bottom: 2.5rem;
    left: 6vw;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7em;
    color: var(--dim);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.5rem;

}

.scroll-hint::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: var(--dim);
    animation: scrollline 2s ease-in-out infinite;
}

@keyframes scrollline {
    0%, 100% { opacity: 0.3; width: 20px; }
    50% { opacity: 1; width: 50px; }
}

/* Stats row */
.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 4rem;
    flex-wrap: wrap;
}

.stat {
    border-left: 2px solid var(--accent);
    padding-left: 1rem;
}

.stat-num {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
}

.stat-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    color: var(--muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 0.2rem;
}

/* ---- GITHUB CONTRIBUTIONS ---- */
.contrib-wrap {
    position: relative;
    max-width: 1080px;
    margin: 1.75rem auto 0;
    padding: 1.25rem 1.25rem 0.25rem 1vw;
}

.contrib-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.6rem;
}

.contrib-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.contrib-count {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.65rem;
    color: var(--dim);
    letter-spacing: 0.05em;
}

.contrib-grid {
    padding: 4px;
    background: rgb(59 74 94 / 0.4);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: grid;
    grid-template-rows: repeat(7, 10px);
    grid-auto-flow: column;
    gap: 5px;
    overflow: hidden;
    max-width: 1080px;
}

.contrib-cell {
    width: 10px;
    height: 10px;
    border-radius: 2px;
    background: var(--surface2);
}

.contrib-cell[data-level="0"] { background: var(--surface2); }
.contrib-cell[data-level="1"] { background: rgba(108,99,255,0.25); }
.contrib-cell[data-level="2"] { background: rgba(108,99,255,0.45); }
.contrib-cell[data-level="3"] { background: rgba(108,99,255,0.7); }
.contrib-cell[data-level="4"] { background: var(--accent); }

.contrib-cell:hover {
    outline: 1px solid var(--accent2);
    cursor: default;
}

@media (max-width: 1080px) {
    .contrib-grid {
        grid-template-rows: repeat(7, 8px);
        gap: 1px 1px;
    }
    .contrib-cell { width: 8px; height: 8px; }
}

@media (max-width: 540px) {
    .contrib-wrap { display: none; }
}

/* ---- SECTION HEADER ---- */
.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
    margin-top: 6rem;
}


.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
}

.section-line {
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* ---- PROJECTS ---- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.75rem;
    transition: border-color 0.25s, transform 0.2s;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s;
}

.project-card:hover::before { transform: scaleX(1); }
.project-card:hover {
    border-color: var(--border2);
    transform: translateY(-4px);
}

.project-tag {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.68rem;
    color: var(--accent2);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-tag-badge {
    background: rgba(0,229,200,0.1);
    border: 1px solid rgba(0,229,200,0.2);
    border-radius: 3px;
    padding: 0.1rem 0.5rem;
    font-size: 0.63rem;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
}

.project-desc {
    font-size: 1rem;
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.68rem;
    color: var(--muted);
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 0.2rem 0.6rem;
    letter-spacing: 0.05em;
}

/* Featured project */
.project-card.featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.project-card.featured .project-desc { font-size: 0.925rem; }

/* ---- SKILLS ---- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

@media (max-width: 700px) {
    .skills-grid { grid-template-columns: 1fr 1fr; }
    .project-card.featured { grid-template-columns: 1fr; }
    .nav-links { gap: 1rem; }
    .hero-stats { gap: 1.5rem; }
}

.skill-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    transition: border-color 0.2s;
}

.skill-card:hover { border-color: var(--border2); }

.skill-icon {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1.1rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 0.6rem;
}

.skill-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 0.4rem;
}

.skill-detail {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1rem;
    color: var(--muted);
    letter-spacing: 0.05em;
}

/* ---- ACHIEVEMENTS ---- */
.achievements-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.achievement-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
    transition: border-color 0.2s;
}

.achievement-item:hover { border-color: var(--border2); }

.achievement-icon {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1rem;
    color: var(--accent2);
    min-width: 32px;
    font-weight: 500;
}

.achievement-text {
    font-size: 0.875rem;
    color: var(--text);
    line-height: 1.5;
}

.achievement-sub {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    color: var(--muted);
    margin-top: 0.3rem;
    letter-spacing: 0.05em;
}

/* ---- CONTACT / ABOUT ---- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

@media (max-width: 700px) {
    .about-grid { grid-template-columns: 1fr; }
}

.about-text {
    font-size: 1rem;
    color: var(--muted);
    line-height: 1.8;
}

.about-text strong { color: var(--text); font-weight: 600; }

.contact-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
}

.contact-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    color: var(--muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.contact-value {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border);
}

.contact-value:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.contact-value a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

.contact-value a:hover { color: var(--accent2); }

/* ---- EDUCATION BAR ---- */
.edu-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    transition: border-color 0.2s;
}

.edu-block:hover { border-color: var(--border2); }

.edu-school {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
}

.edu-sub {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    color: var(--muted);
    margin-top: 0.3rem;
    letter-spacing: 0.04em;
}

.edu-grade {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent2);
    letter-spacing: 0.08em;
    white-space: nowrap;
}

/* ---- FOOTER ---- */
footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 3rem 2rem;
    margin-top: 6rem;
    border-top: 1px solid var(--border);
}

footer .footer-name {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    color: var(--dim);
    letter-spacing: 0.15em;
}

/* ---- ANIMATION ---- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-tag { animation: fadeUp 0.6s ease both; }
.hero-name { animation: fadeUp 0.6s 0.1s ease both; }
.hero-subtitle { animation: fadeUp 0.6s 0.2s ease both; }
.hero-cta { animation: fadeUp 0.6s 0.3s ease both; }
.hero-stats { animation: fadeUp 0.6s 0.4s ease both; }

/* Blinking cursor */
.cursor {
    display: inline-block;
    width: 3px;
    height: 0.9em;
    background: var(--accent);
    margin-left: 2px;
    vertical-align: middle;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Terminal inline */
.term {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    color: var(--accent2);
}

/* EPQ badge */
.epq-badge {
    display: inline-block;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.65rem;
    color: #fff;
    background: var(--accent);
    border-radius: 3px;
    padding: 0.15rem 0.5rem;
    margin-left: 0.5rem;
    letter-spacing: 0.08em;
    vertical-align: middle;
}

/* Concept tags */
.concept-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.25rem;
}

.concept-tag {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    color: var(--accent);
    background: rgba(108,99,255,0.1);
    border: 1px solid rgba(108,99,255,0.2);
    border-radius: 3px;
    padding: 0.2rem 0.65rem;
    letter-spacing: 0.04em;
}

/* Narrow screens nav */
@media (max-width: 560px) {
    nav { padding: 1rem; }
    .nav-links { display: none; }
    #hero { padding-left: 1.2rem; padding-right: 1.2rem; }
    .scroll-hint { left: 1.2rem; }
}

@media (max-height: 800px) {
    .scroll-hint { display: none; }
}