/* ========================================
   Game UI Design System
   Aesthetic: Modern game interface with clean panels
   ======================================== */

:root {
    --bg:        #3B4455;
    --bg-raised: #4A5568;
    --bg-card:   #2D3748;
    --text:      #FFFFFF;
    --text-dim:  #9CA3AF;
    --accent:    #93C5FD;
    --accent-alt: #60A5FA;
    --border:    rgba(255, 255, 255, 0.1);
    --mono:      'Inter', 'Roboto', 'Segoe UI', monospace;
    --sans:      'Inter', '-apple-system', 'BlinkMacSystemFont', 'Segoe UI', sans-serif;
    --max-w:     960px;
    --space:     clamp(1rem, 3vw, 1.5rem);
    --shadow:    0 10px 25px rgba(0, 0, 0, 0.3);
    --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.3);
    /* Golden ratio base unit */
    --gs-1:  0.618rem;
    --gs-2:  1rem;
    --gs-3:  1.618rem;
    --gs-4:  2.618rem;
    --gs-5:  4.236rem;
    --gs-6:  6.854rem;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.618;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: #fff; }

/* ---- NAV ---- */
.nav {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    max-width: var(--max-w);
    width: calc(100% - 2 * var(--space));
    background: rgba(59, 68, 85, 0.9);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
}
.nav__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 0.75rem var(--space);
}
.nav__branding {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    white-space: nowrap;
    color: var(--text);
    text-decoration: none;
    transition: opacity .2s;
}
.nav__branding:hover {
    opacity: 0.8;
}
.nav__info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}
.nav__name {
    font-family: var(--sans);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}
.nav__role {
    font-family: var(--mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
}
.nav__links { display: flex; gap: 1.5rem; align-items: center; }
.nav__link {
    font-family: var(--sans);
    font-size: 0.9rem;
    color: var(--text-dim);
    transition: color .2s;
}
.nav__link:hover { color: var(--text); }
.nav__cv {
    padding: 0.5rem 1rem;
    background: var(--accent);
    color: #000;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all .2s;
}
.nav__cv:hover {
    background: #fff;
    box-shadow: 0 2px 12px rgba(147, 197, 253, 0.3);
}
.nav__toggle { display: none; background: none; border: none; cursor: pointer; }
.nav__toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    margin: 4px 0;
    transition: .3s;
}

/* ---- MAIN ---- */
.main {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 6rem var(--space) 4rem;
}

/* ---- HERO ---- */
.hero {
    position: relative;
    display: grid;
    grid-template-columns: 0.618fr 1fr;
    gap: var(--gs-4);
    align-items: center;
    background: rgba(74, 85, 104, 0.3);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: var(--gs-5) var(--gs-4);
    margin: var(--gs-3) 0;
    box-shadow: var(--shadow);
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3ClinearGradient id='grad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:rgba(88,166,255,0.05);stop-opacity:1' /%3E%3Cstop offset='100%25' style='stop-color:rgba(88,166,255,0.02);stop-opacity:1' /%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='100%25' height='100%25' fill='url(%23grad)' /%3E%3C/svg%3E");
    border-radius: 16px;
    z-index: 0;
}
.hero__bg {
    position: absolute;
    inset: 0;
    opacity: 0.4;
    z-index: 1;
    border-radius: 16px;
}
.hero__image {
    position: relative;
    z-index: 2;
}
.hero__image-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    image-rendering: crisp-edges;
}
.hero__image-placeholder {
    width: var(--gs-6);
    height: var(--gs-6);
    background: rgba(22, 27, 34, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(88, 166, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin: 0 auto;
    color: var(--text-dim);
}
.hero__content {
    position: relative;
    z-index: 2;
}
.hero__tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--gs-3);
}
.hero__title {
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
    margin-bottom: var(--gs-3);
}
.hero__accent {
    color: var(--accent);
}
.hero__sub {
    font-size: 1rem;
    color: var(--text-dim);
    line-height: 1.618;
    margin-bottom: var(--gs-4);
}
.hero__cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ---- BUTTONS ---- */
.btn {
    font-family: var(--mono);
    font-size: 0.8rem;
    padding: var(--gs-1) var(--gs-3);
    border-radius: 6px;
    letter-spacing: 0.04em;
    transition: all .25s;
    display: inline-block;
}
.btn--primary {
    background: var(--accent);
    color: #000;
    font-weight: 500;
}
.btn--primary:hover {
    background: #fff;
    color: #000;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(147, 197, 253, .25);
}
.btn--ghost {
    border: 1px solid var(--border);
    color: var(--text-dim);
    background: rgba(45, 55, 72, 0.4);
    backdrop-filter: blur(6px);
}
.btn--ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(147, 197, 253, 0.1);
}

/* ---- SECTIONS ---- */
.section {
    padding: var(--gs-5) 0;
}
.section__title {
    font-family: var(--mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    margin-bottom: var(--gs-4);
}

/* ---- STACK SECTION ---- */
.bento {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--gs-3);
}
.bento__item {
    background: rgba(45, 55, 72, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--gs-3);
    transition: all .3s;
    box-shadow: var(--shadow-inner);
}
.bento__item:hover {
    border-color: var(--accent);
    background: rgba(45, 55, 72, 0.7);
    box-shadow: var(--shadow), var(--shadow-inner);
}
.bento__item--wide {
    grid-column: span 2;
}
.bento__label {
    font-family: var(--mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: var(--gs-2);
}
.bento__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gs-1);
}
.bento__tag {
    font-size: 0.75rem;
    color: var(--accent);
    background: rgba(147, 197, 253, 0.1);
    padding: var(--gs-1) var(--gs-2);
    border-radius: 8px;
    border: 1px solid rgba(147, 197, 253, 0.3);
    transition: all .2s;
}
.bento__tag:hover {
    background: rgba(147, 197, 253, 0.2);
    border-color: var(--accent);
}

/* ---- PROJECTS SECTION ---- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--gs-4);
}
.project-card {
    background: rgba(45, 55, 72, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--gs-4);
    transition: all .3s;
    box-shadow: var(--shadow-inner);
    display: flex;
    flex-direction: column;
    gap: var(--gs-2);
}
.project-card:hover {
    border-color: var(--accent);
    background: rgba(45, 55, 72, 0.7);
    transform: translateY(-3px);
    box-shadow: var(--shadow), var(--shadow-inner);
}
.project-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.5rem;
}
.project-card__tags {
    display: flex;
    gap: var(--gs-1);
    flex-wrap: wrap;
}
.project-card__tag {
    font-family: var(--mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    background: rgba(147, 197, 253, 0.1);
    padding: var(--gs-1) var(--gs-2);
    border-radius: 4px;
    border: 1px solid rgba(147, 197, 253, 0.3);
}
.project-card__title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--gs-1);
}
.project-card__description {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.618;
    flex-grow: 1;
}
.project-card__stack {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    padding-top: var(--gs-2);
    border-top: 1px solid rgba(88, 166, 255, 0.2);
}

/* ---- RECENT POSTS ---- */
.recent-posts {
    padding: var(--gs-5) 0;
    border-top: 1px solid var(--border);
    padding-top: var(--gs-5);
}
.post-preview {
    display: block;
    padding: var(--gs-3);
    color: var(--text);
    transition: all .3s;
    border-radius: 6px;
    margin-bottom: var(--gs-3);
}
.post-preview:hover {
    padding-left: calc(var(--gs-3) + var(--gs-2));
    background: rgba(45, 55, 72, 0.3);
    color: var(--text);
}
.post-preview__date {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text-dim);
}
.post-preview__title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0.3rem 0;
}
.post-preview__summary {
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* ---- PAGE / ARTICLE ---- */
.page, .article { padding: 3rem 0; }
.page__header, .article__header { margin-bottom: 2.5rem; }
.page__title, .article__title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 0.5rem;
}
.article__date {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--text-dim);
    display: block;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.article__tags { margin-top: 1.25rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }
.tag {
    font-family: var(--mono);
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-dim);
    text-transform: lowercase;
    transition: border-color .2s, color .2s;
    background: rgba(45, 55, 72, 0.3);
}
.tag:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(147, 197, 253, 0.1);
}
.page__body, .article__body {
    margin-top: 2.5rem;
    max-width: 720px;
}
.page__body h2, .article__body h2 {
    font-size: 1.4rem;
    margin: 2.5rem 0 1rem;
    font-weight: 600;
}
.page__body h3, .article__body h3 {
    font-size: 1.15rem;
    margin: 2rem 0 0.75rem;
    font-weight: 600;
}
.page__body p, .article__body p {
    margin-bottom: 1.2rem;
    color: var(--text);
}
.page__body ul, .article__body ul,
.page__body ol, .article__body ol {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--text-dim);
}
.page__body li, .article__body li {
    margin-bottom: 0.4rem;
}
.page__body code, .article__body code {
    font-family: var(--mono);
    font-size: 0.88em;
    background: rgba(45, 55, 72, 0.6);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    color: var(--accent);
}
.page__body pre, .article__body pre {
    background: rgba(45, 55, 72, 0.4);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1.25rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-inner);
}
.page__body a, .article__body a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* ---- FOOTER ---- */
.footer {
    border-top: 1px solid var(--border);
    padding: 3rem var(--space) 2rem;
    max-width: var(--max-w);
    margin: 5rem auto 0;
    background: rgba(59, 68, 85, 0.3);
    box-shadow: var(--shadow);
}
.footer__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
    margin-top: 2rem;
}
.footer__label {
    font-family: var(--mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-dim);
    display: block;
    margin-bottom: 0.75rem;
}
.footer__col { font-size: 0.9rem; }
.footer__col a {
    display: block;
    margin-top: 0.4rem;
    color: var(--text-dim);
    transition: color .2s;
    font-size: 0.85rem;
}
.footer__col a:hover { color: var(--accent); }

/* ---- SOCIAL ICONS ---- */
.footer__socials {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    padding: 2rem 0;
    margin: 1.5rem 0;
}
.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(147, 197, 253, 0.1);
    border: 1px solid rgba(147, 197, 253, 0.2);
    color: var(--text-dim);
    transition: all .2s;
}
.social-icon:hover {
    background: rgba(147, 197, 253, 0.2);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}
.social-icon svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}
.footer__copy {
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 3rem 2rem;
    }
    .hero__image-placeholder { width: 100%; height: 100%; aspect-ratio: 1/1; max-width: 280px; }
    .bento { grid-template-columns: repeat(2, 1fr); }
    .bento__item--wide { grid-column: span 1; }
    .stack-projects { grid-template-columns: 1fr; }
    .project { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav {
        flex-wrap: wrap;
        padding: 0.75rem var(--space);
        gap: 0.75rem;
    }
    .nav__branding {
        order: 1;
    }
    .nav__toggle {
        order: 2;
        display: block;
    }
    .nav__center {
        order: 3;
        width: calc(100% - 3rem);
        margin-top: 0.75rem;
        max-width: none;
    }
    .nav__links { display: none; }
    .nav__links.is-open {
        display: flex;
        flex-direction: column;
        order: 4;
        width: 100%;
        background: rgba(13, 17, 23, 0.7);
        backdrop-filter: blur(12px);
        border-top: 1px solid rgba(48, 54, 61, 0.4);
        padding: 1rem var(--space);
        gap: 0.75rem;
        margin-top: 0.5rem;
    }
    .nav__cv { padding: 0.5rem 0.75rem; font-size: 0.85rem; }
    .hero {
        grid-template-columns: 1fr;
        padding: 2rem 1.5rem;
        margin: 1rem 0;
    }
    .hero__title { font-size: clamp(1.8rem, 7vw, 2.6rem); }
    .hero__sub { font-size: 1rem; }
    .hero__image-placeholder { width: 100%; height: 100%; aspect-ratio: 1/1; max-width: 280px; margin: 0 auto; }
    .hero__bg { opacity: 0.25; }
    .bento { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .footer__grid { grid-template-columns: 1fr; }
    .footer__legal { flex-direction: column; gap: 1rem; }
}