:root {
    --bg: #0b0b0f;
    --surface: rgba(255, 255, 255, 0.03);
    --border: rgba(255, 255, 255, 0.07);
    --text-1: #e8e8ed;
    --text-2: #75757e;
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.15);
    --green: #34d399;
    --green-bg: rgba(52, 211, 153, 0.08);
    --green-border: rgba(52, 211, 153, 0.2);
    --purple: #a78bfa;
    --purple-bg: rgba(167, 139, 250, 0.08);
    --purple-border: rgba(167, 139, 250, 0.2);
    --blue: #60a5fa;
    --blue-bg: rgba(96, 165, 250, 0.08);
    --blue-border: rgba(96, 165, 250, 0.2);
    --radius: 18px;
    --font: 'Inter', system-ui, sans-serif;
}

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text-1);
    font-family: var(--font);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

/* subtle grain texture */
body::after {
    content: '';
    position: fixed; inset: 0;
    background: radial-gradient(ellipse at 30% 0%, rgba(139,92,246,0.07) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 100%, rgba(52,211,153,0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* ── NAV ── */
header {
    position: fixed; top: 0; width: 100%; z-index: 100;
    background: rgba(11,11,15,0.75);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

nav {
    max-width: 1280px; margin: 0 auto;
    padding: 0.8rem 2rem;
    display: flex; align-items: center; justify-content: space-between;
}

.logo {
    font-size: 1.4rem; font-weight: 800; letter-spacing: -0.04em;
    color: var(--text-1);
}
.logo-dot { color: var(--accent); }

.nav-links {
    display: flex; list-style: none; gap: 1.8rem;
}
.nav-links a {
    text-decoration: none; color: var(--text-2);
    font-size: 0.8rem; font-weight: 500;
    text-transform: uppercase; letter-spacing: 0.08em;
    transition: color .25s;
}
.nav-links a:hover { color: var(--text-1); }

.btn-lang {
    background: transparent; color: var(--text-2);
    border: 1px solid var(--border); border-radius: 8px;
    padding: 0.35rem 0.9rem; font-weight: 600; font-size: 0.78rem;
    cursor: pointer; transition: all .25s; font-family: var(--font);
    letter-spacing: 0.05em;
}
.btn-lang:hover { color: var(--text-1); border-color: var(--text-2); }

/* ── BENTO GRID ── */
main {
    max-width: 1280px; margin: 5rem auto 3rem; padding: 0 1.5rem;
}

.bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

/* ── CELLS ── */
.cell {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.6rem;
    transition: transform .35s cubic-bezier(.22,1,.36,1), border-color .3s, background .3s;
}
.cell:hover {
    transform: translateY(-3px);
    border-color: rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.05);
}

/* layout spans */
.cell-hero    { grid-column: span 2; }
.cell-profile { grid-column: span 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.2rem; }
.cell-about   { grid-column: span 3; }
.cell-skill   { grid-column: span 1; }
.cell-langs   { grid-column: span 1; }
.cell-contact { grid-column: span 2; }
.cell-links   { grid-column: span 3; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }

.section-title {
    grid-column: span 3;
    font-size: 0.7rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.15em;
    color: var(--text-2);
    padding: 1rem 0 0;
    margin: 0;
}

/* ── HERO ── */
.cell-hero .label {
    font-size: 0.65rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.18em; color: var(--text-2); margin-bottom: 0.6rem;
}
.cell-hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800; letter-spacing: -0.03em; line-height: 1.08;
    margin-bottom: 0.3rem;
}
.cell-hero h2 {
    font-size: 1.1rem; font-weight: 500; color: var(--accent);
    margin-bottom: 0.8rem;
}
.hero-sub { color: var(--text-2); font-size: 0.9rem; }

/* ── PROFILE PHOTO ── */
.profile-photo {
    width: 80px; height: 80px; border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    box-shadow: 0 0 20px var(--accent-glow);
    transition: box-shadow .3s, transform .3s;
}
.cell-profile:hover .profile-photo {
    box-shadow: 0 0 30px rgba(139,92,246,0.3);
    transform: scale(1.05);
}
.profile-badges {
    display: flex; flex-wrap: wrap; gap: 0.4rem; justify-content: center;
}

/* ── BADGES ── */
.badge {
    display: inline-block; padding: 0.28rem 0.7rem;
    border-radius: 6px; font-size: 0.7rem; font-weight: 600;
    letter-spacing: 0.03em;
}
.badge-dim    { background: rgba(255,255,255,0.04); color: var(--text-2); border: 1px solid var(--border); }
.badge-green  { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.badge-purple { background: var(--purple-bg); color: var(--purple); border: 1px solid var(--purple-border); }
.badge-blue   { background: var(--blue-bg); color: var(--blue); border: 1px solid var(--blue-border); }

/* ── ABOUT ── */
.cell-about p { color: var(--text-2); font-size: 0.92rem; line-height: 1.65; max-width: 90ch; }

.cell-header {
    display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1rem;
}
.cell-header h3 {
    font-size: 0.95rem; font-weight: 700;
}

/* ── ICONS ── */
.icon {
    width: 20px; height: 20px; flex-shrink: 0;
    stroke: var(--text-2); fill: none;
    stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.icon-sm {
    width: 15px; height: 15px; flex-shrink: 0;
    stroke: var(--text-2); fill: none;
    stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}

/* ── SKILL CARDS ── */
.cell-skill {
    display: flex; flex-direction: column; gap: 0.5rem;
}
.cell-skill .icon { margin-bottom: 0.3rem; }
.cell-skill h4 { font-size: 0.9rem; font-weight: 700; }
.cell-skill p  { font-size: 0.8rem; color: var(--text-2); line-height: 1.5; }

/* highlighted skill cards (leadership & software dev) */
.skill-highlight {
    background: linear-gradient(135deg, var(--purple-bg) 0%, rgba(99,102,241,0.06) 100%);
    border-color: var(--purple-border);
    position: relative;
}
.skill-highlight::before {
    content: '';
    position: absolute; inset: -1px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(139,92,246,0.25), rgba(99,102,241,0.08));
    z-index: -1;
    opacity: 0;
    transition: opacity .35s;
}
.skill-highlight:hover::before { opacity: 1; }
.skill-highlight:hover {
    border-color: rgba(139,92,246,0.4);
    background: linear-gradient(135deg, rgba(167,139,250,0.12) 0%, rgba(99,102,241,0.08) 100%);
}
.skill-highlight .icon { stroke: var(--accent); }
.skill-highlight h4 { color: var(--purple); }


/* ── ACTIVITY CARDS ── */
.cell-activity {
    display: flex; flex-direction: column; gap: 0.5rem;
}
.cell-activity .icon { margin-bottom: 0.2rem; }
.cell-activity h4 { font-size: 0.88rem; font-weight: 700; }
.cell-activity p  { font-size: 0.8rem; line-height: 1.5; }

.activity-green {
    background: var(--green-bg);
    border-color: var(--green-border);
}
.activity-green .icon { stroke: var(--green); }
.activity-green h4 { color: var(--green); }
.activity-green p  { color: rgba(52,211,153,0.7); }
.activity-green:hover {
    background: rgba(52,211,153,0.12);
    border-color: rgba(52,211,153,0.35);
}

.activity-purple {
    background: var(--purple-bg);
    border-color: var(--purple-border);
}
.activity-purple .icon { stroke: var(--purple); }
.activity-purple h4 { color: var(--purple); }
.activity-purple p  { color: rgba(167,139,250,0.7); }
.activity-purple:hover {
    background: rgba(167,139,250,0.12);
    border-color: rgba(167,139,250,0.35);
}

.activity-blue {
    background: var(--blue-bg);
    border-color: var(--blue-border);
}
.activity-blue .icon { stroke: var(--blue); }
.activity-blue h4 { color: var(--blue); }
.activity-blue p  { color: rgba(96,165,250,0.7); }
.activity-blue:hover {
    background: rgba(96,165,250,0.12);
    border-color: rgba(96,165,250,0.35);
}

/* ── LANGS ── */
.lang-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* ── CONTACT ── */
.contact-row {
    display: flex; gap: 1.5rem; flex-wrap: wrap;
}
.contact-link {
    display: flex; align-items: center; gap: 0.5rem;
    color: var(--text-1); text-decoration: none;
    font-size: 0.85rem; font-weight: 500;
    transition: color .25s;
}
.contact-link:hover { color: var(--accent); }
.contact-link:hover .icon-sm { stroke: var(--accent); }

/* ── LINKS / PERFILES ── */
.link-item {
    display: flex; align-items: center; gap: 0.75rem;
    text-decoration: none; color: var(--text-1);
    padding: 1rem; border-radius: 14px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    transition: all .3s ease;
}
.link-item:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.15);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(139,92,246,0.1);
}
.link-item .icon { stroke: var(--accent); flex-shrink: 0; }
.link-item:hover .icon { stroke: var(--text-1); }
.link-name {
    display: block; font-size: 0.85rem; font-weight: 600;
}
.link-user {
    display: block; font-size: 0.7rem; color: var(--text-2); margin-top: 1px;
}

/* ── FOOTER ── */
footer {
    text-align: center; padding: 3rem 2rem;
    color: var(--text-2); font-size: 0.75rem;
    border-top: 1px solid var(--border);
}

/* ── ANIMATIONS ── */
.cell {
    opacity: 0; transform: translateY(16px);
    animation: rise .6s cubic-bezier(.22,1,.36,1) forwards;
}
@keyframes rise {
    to { opacity: 1; transform: translateY(0); }
}
/* stagger */
.cell:nth-child(1)  { animation-delay: .05s; }
.cell:nth-child(2)  { animation-delay: .1s; }
.cell:nth-child(3)  { animation-delay: .15s; }
.cell:nth-child(4)  { animation-delay: .2s; }
.cell:nth-child(5)  { animation-delay: .25s; }
.cell:nth-child(6)  { animation-delay: .3s; }
.cell:nth-child(7)  { animation-delay: .35s; }
.cell:nth-child(8)  { animation-delay: .4s; }
.cell:nth-child(9)  { animation-delay: .45s; }
.cell:nth-child(10) { animation-delay: .5s; }
.cell:nth-child(11) { animation-delay: .55s; }
.cell:nth-child(12) { animation-delay: .6s; }
.cell:nth-child(13) { animation-delay: .65s; }
.cell:nth-child(14) { animation-delay: .7s; }
.cell:nth-child(15) { animation-delay: .75s; }
.cell:nth-child(16) { animation-delay: .8s; }
.cell:nth-child(17) { animation-delay: .85s; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
    .bento { grid-template-columns: repeat(2, 1fr); }
    .cell-hero    { grid-column: span 2; }
    .cell-profile { grid-column: span 2; flex-direction: row; justify-content: flex-start; }
    .cell-about   { grid-column: span 2; }
    .section-title { grid-column: span 2; }
    .cell-contact { grid-column: span 2; }
    .cell-langs   { grid-column: span 2; }
    .cell-links   { grid-column: span 2; grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 580px) {
    main { padding: 0 1rem; margin-top: 4.5rem; }
    .bento { grid-template-columns: 1fr; gap: 0.85rem; }
    .cell { padding: 1.3rem; }
    .cell-hero, .cell-profile, .cell-about,
    .section-title, .cell-contact, .cell-langs,
    .cell-links { grid-column: span 1; }
    .cell-links { grid-template-columns: 1fr; }
    .cell-profile { flex-direction: column; align-items: center; text-align: center; }
    .nav-links { display: none; }
    nav { padding: 0.7rem 1rem; }
    .contact-row { flex-direction: column; gap: 1rem; align-items: flex-start; }
    .cell-hero h1 { font-size: 2.2rem; }
}