/* ===========================
   VARIABLES
   =========================== */
:root {
    --bg: #0a0a10;
    --surface: #111118;
    --surface-2: #18181f;
    --border: #21212e;
    --border-light: #2e2e3e;

    --gold: #c89b4a;
    --gold-bright: #ddb060;
    --gold-dim: rgba(200, 155, 74, 0.13);
    --gold-glow: rgba(200, 155, 74, 0.06);

    --text: #dedad0;
    --text-dim: #7c7c8c;
    --text-faint: #2e2e3c;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-ui: 'Syne', 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    --radius: 3px;
    --tr: all 0.24s ease;
}

[data-theme="light"] {
    --bg: #f3efe6;
    --surface: #e9e4da;
    --surface-2: #dedad0;
    --border: #ccc8be;
    --border-light: #b8b3a8;

    --gold: #9a7028;
    --gold-bright: #b88a38;
    --gold-dim: rgba(154, 112, 40, 0.10);
    --gold-glow: rgba(154, 112, 40, 0.04);

    --text: #14141c;
    --text-dim: #5a5a6a;
    --text-faint: #c4c0b6;
}

/* ===========================
   RESET & BASE
   =========================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-ui);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    overflow-x: hidden;
    transition: background 0.3s ease, color 0.3s ease;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ===========================
   GRAIN TEXTURE
   =========================== */
.grain {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.038;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 256px 256px;
}

/* ===========================
   NAVIGATION
   =========================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 10, 16, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 var(--border);
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(243, 239, 230, 0.88);
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

/* Logo — geometric outline style, distinct from portfolio */
.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    flex-shrink: 0;
    transition: var(--tr);
}

.logo:hover { opacity: 0.8; }

.logo-img {
    height: 100%;
    width: auto;
    display: block;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.15rem;
    align-items: center;
}

.nav-link {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    padding: 0.45rem 0.8rem;
    border-radius: var(--radius);
    transition: var(--tr);
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--text);
    background: var(--surface-2);
}

.nav-link.active {
    color: var(--gold);
    background: var(--gold-glow);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-light);
    color: var(--text-dim);
    width: 34px;
    height: 34px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--tr);
}

.theme-toggle:hover {
    border-color: var(--gold);
    color: var(--gold);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 34px;
    height: 34px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    background: none;
    cursor: pointer;
    padding: 0 8px;
    transition: var(--tr);
}

.nav-hamburger span {
    display: block;
    height: 1px;
    background: var(--text-dim);
    transition: var(--tr);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ===========================
   SECTION LAYOUT
   =========================== */
.section-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 7rem 2rem;
}

.section-label {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 3.5rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
}

.sec-num { color: var(--gold); }
.sec-slash { color: var(--text-faint); }
.sec-title { color: var(--text-dim); letter-spacing: 0.18em; }

/* ===========================
   HERO
   =========================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    cursor: crosshair;
}

.hero a,
.hero button { cursor: pointer; }

/* Game of Life canvas */
#gol-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Interaction hint */
.gol-hint {
    position: absolute;
    bottom: 5rem;
    right: 2rem;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--gold);
    letter-spacing: 0.12em;
    opacity: 0;
    pointer-events: none;
    z-index: 2;
    animation: golHintFade 5s ease forwards 2s;
}

@keyframes golHintFade {
    0%   { opacity: 0;    transform: translateY(6px); }
    15%  { opacity: 0.75; transform: translateY(0); }
    80%  { opacity: 0.75; transform: translateY(0); }
    100% { opacity: 0;    transform: translateY(-4px); }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 1px;
    height: 100%;
    background: var(--border);
    opacity: 0.5;
    pointer-events: none;
}

.hero-bg-word {
    position: absolute;
    top: 45%;
    right: 0.5em;
    transform: translateY(-50%);
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(6rem, 18vw, 18rem);
    font-weight: 400;
    color: transparent;
    -webkit-text-stroke: 1px var(--accent);
    opacity: 0.18;
    line-height: 1;
    pointer-events: none;
    user-select: none;
    letter-spacing: -0.02em;
    z-index: 1;
    transition: -webkit-text-stroke-color 0.3s ease, opacity 0.3s ease;
}

.hero-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 6rem 2rem 4rem;
    width: 100%;
    position: relative;
    z-index: 1;
    user-select: none;
}

.hero-inner a,
.hero-inner button {
    user-select: auto;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 2rem;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.18em;
}

.meta-pill { color: var(--gold); }
.meta-dot  { color: var(--text-faint); }

.hero-name {
    display: flex;
    flex-direction: column;
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 900;
    font-size: clamp(3.5rem, 10vw, 10.5rem);
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: 2.5rem;
}

.hero-name-1 { color: var(--text); }
.hero-name-2 {
    color: var(--gold);
    margin-left: clamp(1.5rem, 5vw, 5.5rem);
}

.hero-rule {
    width: 72px;
    height: 2px;
    background: var(--gold);
    margin-bottom: 1.5rem;
}

.hero-sub {
    font-family: var(--font-ui);
    font-size: clamp(0.85rem, 1.4vw, 1.05rem);
    font-weight: 500;
    color: var(--text-dim);
    letter-spacing: 0.04em;
    margin-bottom: 3rem;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.85rem 2rem;
    border-radius: var(--radius);
    transition: var(--tr);
    cursor: pointer;
    border: none;
}

.btn-gold {
    background: var(--gold);
    color: var(--bg);
}

.btn-gold:hover {
    background: var(--gold-bright);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-light);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold);
}

/* Scroll hint */
.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    z-index: 1;
}

.scroll-track {
    width: 1px;
    height: 56px;
    background: linear-gradient(to bottom, var(--gold), transparent);
    animation: scrollPulse 2.2s ease-in-out infinite;
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.9; }
}

/* ===========================
   REVEAL ANIMATIONS
   =========================== */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.hero-name-1.reveal { transition-delay: 0.05s; }
.hero-name-2.reveal { transition-delay: 0.18s; }
.hero-rule.reveal   { transition-delay: 0.32s; }
.hero-sub.reveal    { transition-delay: 0.42s; }
.hero-ctas.reveal   { transition-delay: 0.52s; }

/* ===========================
   SERVICES — SECTION 01
   =========================== */
.services {
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.services-intro {
    max-width: 560px;
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.85;
    margin-bottom: 3.5rem;
    margin-top: -1rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.scard {
    padding: 2rem 2rem 2.5rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
    transition: border-color 0.24s ease, background 0.24s ease;
    display: flex;
    flex-direction: column;
}

[data-theme="light"] .scard {
    background: var(--surface-2);
}

.scard::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: transparent;
    transition: background 0.3s ease;
}

.scard:hover::before {
    background: var(--gold);
}

.scard:hover {
    border-color: var(--border-light);
    background: var(--surface-2);
}

[data-theme="light"] .scard:hover {
    background: var(--bg);
}

.scard-icon {
    color: var(--gold);
    margin-bottom: 1.75rem;
    width: 28px;
    height: 28px;
    opacity: 0.85;
    flex-shrink: 0;
}

.scard-title {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.85rem;
    line-height: 1.2;
}

.scard-desc {
    font-size: 0.87rem;
    color: var(--text-dim);
    line-height: 1.85;
    margin-bottom: 1.75rem;
    flex-grow: 1;
}

.scard-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-top: auto;
}

.stag {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    padding: 0.18rem 0.48rem;
    border: 1px solid var(--border-light);
    color: var(--text-dim);
    border-radius: 2px;
}

/* ===========================
   REFERENCES — SECTION 02
   =========================== */
.references {
    border-top: 1px solid var(--border);
}

.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    border: 1px solid var(--border);
}

.rcard {
    background: var(--bg);
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    transition: background 0.2s ease;
    display: flex;
    flex-direction: column;
}

[data-theme="light"] .rcard {
    background: var(--surface);
}

.rcard:hover {
    background: var(--surface-2);
}

[data-theme="light"] .rcard:hover {
    background: var(--surface-2);
}

/* Browser chrome header */
.rcard-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.2rem;
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.rcard-dots {
    display: flex;
    gap: 5px;
    flex-shrink: 0;
}

.rcard-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
}

.rcard-dot:nth-child(1) { background: #ff5f57; }
.rcard-dot:nth-child(2) { background: #febc2e; }
.rcard-dot:nth-child(3) { background: #28c840; }

.rcard-url {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text-dim);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.rcard-body {
    padding: 1.75rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.rcard-name {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.75rem;
    line-height: 1.2;
}

.rcard-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 1rem;
}

.rtag {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    padding: 0.18rem 0.48rem;
    border: 1px solid var(--border-light);
    color: var(--text-dim);
    border-radius: 2px;
}

.rcard-desc {
    font-size: 0.87rem;
    color: var(--text-dim);
    line-height: 1.78;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.rcard-link {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--gold);
    letter-spacing: 0.05em;
    transition: var(--tr);
    margin-top: auto;
}

.rcard-link:hover {
    color: var(--gold-bright);
}

/* ===========================
   ABOUT — SECTION 03
   =========================== */
.about {
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.about-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 5rem;
    align-items: start;
}

.about-photo-wrap {
    position: relative;
    width: 190px;
}

/* Placeholder — swap src to <img> when photo available */
.about-photo {
    width: 190px;
    height: 190px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-2);
    border: 1px solid var(--border);
    position: relative;
}

.about-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(15%) contrast(1.05);
    transition: filter 0.4s ease;
}

.about-photo img:hover {
    filter: grayscale(0%) contrast(1);
}

.about-logo-img {
    max-width: 82%;
    max-height: 82%;
    width: auto;
    height: auto;
    display: block;
    margin: auto;
    filter: none;
}

.about-photo-init {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--gold);
    opacity: 0.25;
    user-select: none;
}

.photo-border {
    position: absolute;
    inset: 0;
    border: 1px solid var(--gold);
    transform: translate(9px, 9px);
    pointer-events: none;
    opacity: 0.6;
}

.about-info {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.info-row {
    display: flex;
    flex-direction: column;
    gap: 0.12rem;
}

.info-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
}

.info-value {
    font-size: 0.83rem;
    color: var(--text);
    font-weight: 500;
}

.status-active {
    color: #5ebd78;
}

.status-active::before {
    content: '● ';
    font-size: 0.55em;
    vertical-align: middle;
}

.about-text-col p {
    color: var(--text-dim);
    margin-bottom: 1.3rem;
    font-size: 0.95rem;
    line-height: 1.85;
}

.about-text-col p:last-of-type {
    margin-bottom: 0;
}

.about-cta {
    margin-top: 2.5rem;
}

/* ===========================
   CONTACT — SECTION 04
   =========================== */
.contact {
    border-top: 1px solid var(--border);
}

.contact-intro {
    max-width: 520px;
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.85;
    margin-bottom: 3rem;
}

.contact-list {
    display: flex;
    flex-direction: column;
    max-width: 600px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.ccard {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1.2rem 1.5rem;
    background: var(--bg);
    transition: background 0.2s ease, padding-left 0.2s ease;
    border-bottom: 1px solid var(--border);
}

[data-theme="light"] .ccard {
    background: var(--surface-2);
}

.ccard:last-child {
    border-bottom: none;
}

.ccard:hover {
    background: var(--surface-2);
    padding-left: 2rem;
}

[data-theme="light"] .ccard:hover {
    background: var(--bg);
}

.ccard-icon {
    color: var(--gold);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    opacity: 0.85;
}

.ccard-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.ccard-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    color: var(--text-dim);
    text-transform: uppercase;
}

.ccard-value {
    font-size: 0.88rem;
    color: var(--text);
    font-weight: 500;
}

.ccard-arrow {
    color: var(--gold);
    font-size: 1rem;
    opacity: 0;
    transform: translateX(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.ccard:hover .ccard-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    border-top: 1px solid var(--border);
    padding: 2rem 2rem;
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-copy {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-dim);
    letter-spacing: 0.05em;
}

.footer-stack {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-dim);
    letter-spacing: 0.03em;
    opacity: 0.6;
}

.footer-legal {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text-dim);
    letter-spacing: 0.04em;
    opacity: 0.5;
    line-height: 1.7;
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1000px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about-image-col {
        display: flex;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .about-info {
        margin-top: 0;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 1rem;
        gap: 0.25rem;
        z-index: 999;
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-hamburger {
        display: flex;
    }

    .hero-bg-word {
        font-size: 38vw;
        opacity: 0.6;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .references-grid {
        grid-template-columns: 1fr;
    }

    .section-container {
        padding: 5rem 1.25rem;
    }

    .about-image-col {
        flex-direction: column;
    }

    .footer-top {
        flex-direction: column;
        gap: 0.4rem;
    }
}

@media (max-width: 480px) {
    .hero-ctas {
        flex-direction: column;
    }

    .btn {
        justify-content: center;
        text-align: center;
    }

    .hero-scroll {
        display: none;
    }

    .hero::before {
        display: none;
    }

    .section-label {
        margin-bottom: 2.5rem;
    }

    .footer-legal {
        font-size: 0.58rem;
    }
}