/* ---------- Base ---------- */
:root {
    --bg-0: #05060a;
    --bg-1: #0b0d16;
    --bg-2: #151826;
    --fg: #e6e9f2;
    --fg-dim: #a0a7b8;
    --accent: #7c5cff;
    --accent-soft: rgba(124, 92, 255, 0.15);
    --card: rgba(255, 255, 255, 0.04);
    --card-border: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    color: var(--fg);
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Lock the home page in place — no scrolling at all */
body.no-scroll {
    overflow: hidden;
    height: 100vh;
}
body.no-scroll .site-footer { display: none; }

/* ---------- Animated background (matches live site) ---------- */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #1a202c, #2d3748);
    z-index: -1;
}

.grid-overlay { display: none; }

/* ---------- Loading overlay ---------- */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: #05060a;
    z-index: 1000;
    animation: fadeOut 0.9s ease-in-out 0.2s forwards;
}

@keyframes fadeOut {
    0%   { opacity: 1; }
    100% { opacity: 0; visibility: hidden; }
}

/* ---------- Fade-in util ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Home page ---------- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem 1.5rem;
    position: relative;
}

#profile-photo {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 2px solid var(--accent);
    box-shadow:
        0 0 0 6px var(--accent-soft),
        0 20px 60px rgba(0, 0, 0, 0.5);
    animation: photoFloat 6s ease-in-out infinite;
}

@keyframes photoFloat {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-8px); }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin: 0 0 0.6rem;
    letter-spacing: -0.02em;
    color: #ffffff;
}

.hero .typed-line {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--fg-dim);
    margin: 0 0 2rem;
    min-height: 1.6em;
}

#typed {
    color: var(--fg);
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.65rem 1.1rem;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 999px;
    color: var(--fg);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: transform 0.25s ease, border-color 0.25s ease,
                background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}
.social-btn:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    background: var(--accent-soft);
    box-shadow: 0 10px 30px -10px rgba(124, 92, 255, 0.55);
}
.social-btn svg { width: 20px; height: 20px; }

.social-btn.projects-btn {
    background: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
}
.social-btn.projects-btn:hover {
    background: #6a48ff;
    border-color: #6a48ff;
    box-shadow: 0 14px 40px -12px rgba(124, 92, 255, 0.6);
}

/* ---------- Projects page ---------- */
.projects-hero {
    padding: 5rem 1.5rem 1.5rem;
    text-align: center;
    position: relative;
}

.projects-hero h1 {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.025em;
    color: #ffffff;
}

/* ---------- Project cards ---------- */
.projects-grid {
    max-width: 1200px;
    margin: 3rem auto 6rem;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.75rem;
}

.project-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow:
        0 30px 60px -30px rgba(0, 0, 0, 0.9),
        0 0 0 1px var(--accent);
}

.card-cover {
    position: relative;
    height: 160px;
    overflow: hidden;
    background: var(--bg-2);
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-emoji {
    font-size: 3.2rem;
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.5));
    transform: translateZ(0);
    transition: transform 0.4s ease;
}
.project-card:hover .card-emoji { transform: scale(1.1) rotate(-4deg); }

.card-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    background: rgba(5, 6, 10, 0.75);
    border: 1px solid var(--card-border);
    color: var(--fg);
}

.card-body {
    padding: 1.3rem 1.4rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    flex: 1;
}

.card-body h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.card-body p {
    margin: 0;
    color: var(--fg-dim);
    font-size: 0.92rem;
    line-height: 1.55;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.2rem;
}
.tech-stack span {
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    padding: 0.28rem 0.6rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    color: #cdd1e0;
}

.card-actions {
    display: flex;
    gap: 0.6rem;
    margin-top: auto;
    padding-top: 0.6rem;
}
.card-actions a {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.6rem 0.8rem;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: transform 0.2s ease, background 0.25s ease, border-color 0.25s ease;
}
.card-actions a svg { width: 16px; height: 16px; }
.card-actions .btn-primary {
    background: var(--accent);
    color: #ffffff;
    border: 1px solid var(--accent);
}
.card-actions .btn-primary:hover {
    transform: translateY(-2px);
    background: #6a48ff;
    border-color: #6a48ff;
}
.card-actions .btn-ghost {
    background: transparent;
    color: var(--fg);
    border: 1px solid rgba(255, 255, 255, 0.12);
}
.card-actions .btn-ghost:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.04);
}

/* ---------- Footer ---------- */
.site-footer {
    text-align: center;
    padding: 2rem 1.5rem 2.5rem;
    color: var(--fg-dim);
    font-size: 0.82rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    #profile-photo { width: 150px; height: 150px; }
    .social-btn { padding: 0.55rem 0.9rem; font-size: 0.85rem; }
    .projects-hero { padding-top: 3.5rem; }
}