:root {
    color-scheme: dark;
    --bg: #000000;
    --text: #ffffff;
    --muted-text: #aab3c3;
    --card: rgb(40 40 58 / 0.67);
    --surface: #11151b;
    --accent: #9ec8ff;
    --blob: radial-gradient(circle, rgba(90, 168, 255, 0.35) 0%, rgba(90, 168, 255, 0.16) 35%, rgba(90, 168, 255, 0.04) 62%, rgba(0, 0, 0, 0) 78%);
    --grid-opacity: 0.3;
}

:root[data-theme="light"] {
    color-scheme: light;
    --bg: #f5f8ff;
    --text: #0f172a;
    --muted-text: #475569;
    --card: rgba(230, 237, 249, 0.92);
    --surface: #e6edf9;
    --accent: #2563eb;
    --blob: radial-gradient(circle, rgba(147, 197, 253, 0.55) 0%, rgba(147, 197, 253, 0.3) 38%, rgba(147, 197, 253, 0.12) 62%, rgba(255, 255, 255, 0) 80%);
    --grid-opacity: 0.3;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 180ms ease, color 180ms ease;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(0deg, transparent 24%, rgba(148, 200, 255, 0.05) 25%, rgba(148, 200, 255, 0.05) 26%, transparent 27%, transparent 74%, rgba(148, 200, 255, 0.05) 75%, rgba(148, 200, 255, 0.05) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(148, 200, 255, 0.05) 25%, rgba(148, 200, 255, 0.05) 26%, transparent 27%, transparent 74%, rgba(148, 200, 255, 0.05) 75%, rgba(148, 200, 255, 0.05) 76%, transparent 77%, transparent);
    background-size: 96px 96px;
    pointer-events: none;
    z-index: 1;
    opacity: var(--grid-opacity);
    transition: opacity 200ms ease;
}

.blob {
    position: fixed;
    top: 52%;
    left: 65%;
    transform: translate(-50%, -50%);
    width: min(90vw, 1200px);
    height: min(90vw, 1200px);
    background: var(--blob);
    filter: blur(8px);
    pointer-events: none;
    z-index: 0;
}

.page {
    position: relative;
    z-index: 1;
    width: min(1120px, 100% - 3rem);
    margin: 0 auto;
    padding-bottom: 4rem;
    padding-top: 0;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 1;
    backdrop-filter: blur(14px);
    background: var(--surface);
    opacity: 0;
    transition: opacity 300ms ease;
    pointer-events: none;
}

.topbar.scrolled {
    opacity: 0.7;
    pointer-events: auto;
}

.topbar-inner {
    width: min(1120px, 100% - 3rem);
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0.75rem 0;
    pointer-events: auto;
}

/* ── Burger container ── */
.nav-burger {
    position: fixed;
    top: 1rem;
    left: 1.5rem;
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    background: var(--surface);
    backdrop-filter: blur(12px);
    border-radius: 999px;
    padding: 0.35rem 0.5rem;
    transition: border-radius 260ms ease;
    z-index: 10;
    pointer-events: auto;
}

.burger-icon {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    padding: 4px 6px;
    flex-shrink: 0;
    background: transparent;
    border: none;
}

.burger-icon span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: background 150ms ease;
}

.burger-icon:hover span {
    background: var(--accent);
}

/* ── Desktop: slides out to the right ── */
.burger-menu {
    display: flex;
    flex-direction: row;
    align-items: center;
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-width 340ms cubic-bezier(0.4, 0, 0.2, 1),
                opacity 200ms ease;
    white-space: nowrap;
    pointer-events: none;
}

.nav-burger:hover .burger-menu,
.nav-burger.open .burger-menu {
    max-width: 800px;
    opacity: 1;
    pointer-events: auto;
}

.topbar.scrolled .burger-menu {
    max-width: 800px;
    opacity: 1;
    pointer-events: auto;
}

.burger-menu a {
    text-decoration: none;
    color: var(--muted-text);
    font-size: 0.95rem;
    padding: 0.25rem 0.75rem;
    transition: color 150ms ease;
}

.burger-menu a:hover {
    color: var(--accent);
}

.menu-sep {
    margin: 0 0.25rem;
    font-size: 1.1rem;
    user-select: none;
    flex-shrink: 0;
}

a {
    color: inherit;
}

.socials a {
    text-decoration: none;
    color: var(--muted-text);
    transition: color 150ms ease;
}

.socials a:hover,
.logo-link:hover {
    color: var(--accent);
}

.mode-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--muted-text);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    flex-shrink: 0;
    transition: color 150ms ease;
}

.mode-toggle:hover {
    color: var(--accent);
}

.mode-toggle svg {
    width: 22px;
    height: 22px;
}

/* Show sun in dark mode (click → go light); moon in light mode (click → go dark) */
.icon-moon { display: none; }
.icon-sun  { display: block; }

:root[data-theme="light"] .icon-sun  { display: none; }
:root[data-theme="light"] .icon-moon { display: block; }

:root[data-theme="dark"] .icon-sun  { display: block; }
:root[data-theme="dark"] .icon-moon { display: none; }

section {
    padding-top: 4rem;
}

.hero {
    min-height: 82vh;
    display: flex;
    align-items: center;
}

.hero-content {
    width: 100%;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(280px, 420px);
    gap: 2rem;
    align-items: center;
}

.hero-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
}

.hero-json-card {
    background: var(--card);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 1rem;
    overflow: auto;
}

.hero-json {
    margin: 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 0.88rem;
    line-height: 1.55;
    color: color-mix(in srgb, var(--text) 92%, transparent);
}

.hero-logo {
    width: clamp(56px, 8vw, 84px);
    height: auto;
    margin-bottom: 0.85rem;
    filter: brightness(0) invert(1);
}

:root[data-theme="light"] .hero-logo {
    filter: brightness(0) invert(0);
}

h1,
h2,
h3,
p {
    margin: 0;
}

.name {
    font-size: clamp(2.1rem, 6vw, 4.8rem);
    letter-spacing: -0.03em;
    line-height: 1.08;
    max-width: 12ch;
}

.role {
    margin-top: 0.65rem;
    color: var(--muted-text);
    font-size: clamp(1rem, 2.2vw, 1.45rem);
    font-weight: 500;
}

.socials {
    margin-top: 1.7rem;
    display: flex;
    gap: 1.25rem;
    font-weight: 600;
    font-size: 0.97rem;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--card) 74%, transparent);
    color: var(--muted-text);
    transition: color 150ms ease, border-color 150ms ease;
}

.social-icon:hover {
    color: var(--accent);
}

.social-icon svg {
    width: 19px;
    height: 19px;
    fill: currentColor;
}

.section-title {
    margin-bottom: 1.15rem;
    font-size: clamp(1.4rem, 3.2vw, 2rem);
    letter-spacing: -0.02em;
}

.section-subtitle {
    color: var(--muted-text);
    margin-bottom: 1.6rem;
    max-width: 70ch;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.card {
    background: var(--card);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 1rem;
}

.card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    /*gap: 1rem;*/
    margin-bottom: 0.35rem;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.3;
}

.card-date {
    color: var(--muted-text);
    margin-bottom: 0.65rem;
    font-size: 0.94rem;
}

.card p {
    color: color-mix(in srgb, var(--text) 90%, transparent);
    font-size: 0.96rem;
}

.project-logos {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
    margin-bottom: 0.75rem;
    align-items: center;
}

.project-logo-img,
.project-logo-svg {
    height: 36px;
    width: auto;
    border-radius: 6px;
    padding: 4px;
    transition: background 150ms ease, transform 150ms ease;
}

.project-logo-img:hover,
.project-logo-svg:hover {
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    transform: scale(1.05);
}

.project-logo-svg {
    color: var(--muted-text);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.tech-badge {
    display: inline-block;
    font-size: 0.8rem;
    padding: 0.35rem 0.7rem;
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
    border-radius: 999px;
    font-weight: 500;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    padding: 0.28rem 0.45rem;
    min-width: 78px;
}

.card-logos-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.company-logo {
    width: 60px;
    max-height: 28px;
    object-fit: contain;
}

footer {
    margin-top: 4rem;
    color: var(--muted-text);
    font-size: 0.9rem;
}

@media (max-width: 860px) {
    .page,
    .topbar-inner {
        width: min(1120px, 100% - 2rem);
    }

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

    .hero {
        min-height: 72vh;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 1.4rem;
    }

    .hero-json-card {
        max-width: 100%;
    }

    .blob {
        width: 88vw;
        height: 88vw;
    }
}

@media (max-width: 720px) {
    /* Cleaner mobile menu: circular trigger + dropdown card */
    .nav-burger {
        position: fixed;
        top: 1rem;
        left: 1rem;
        border: none;
        background: var(--surface);
        padding: 0;
        backdrop-filter: blur(12px);
        z-index: 10;
    }

    .burger-icon {
        align-self: flex-start;
        width: 44px;
        height: 44px;
        justify-content: center;
        align-items: center;
        border-radius: 999px;
        background: transparent;
    }

    .burger-menu {
        position: absolute;
        top: calc(100% + 0.55rem);
        left: 0;
        flex-direction: column;
        align-items: flex-start;
        width: min(78vw, 300px);
        background: var(--surface);
        backdrop-filter: blur(14px);
        border-radius: 14px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
        padding: 0 0.4rem;
        max-height: 0;
        white-space: normal;
        gap: 0;
        opacity: 0;
        transform: translateY(-6px);
        overflow: hidden;
        pointer-events: none;
        transition: max-height 360ms cubic-bezier(0.4, 0, 0.2, 1),
                    opacity 220ms ease,
                    transform 220ms ease,
                    padding 220ms ease;
    }

    .nav-burger:hover .burger-menu,
    .nav-burger.open .burger-menu {
        max-height: 480px;
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
        padding-top: 0.4rem;
        padding-bottom: 0.5rem;
    }

    .burger-menu a {
        padding: 0.52rem 0.62rem;
        font-size: 0.93rem;
        width: 100%;
        border-radius: 8px;
    }

    .burger-menu a:hover {
        background: color-mix(in srgb, var(--accent) 10%, transparent);
    }

    /* Turn the | separator into a horizontal divider line on mobile */
    .menu-sep {
        display: block;
        width: 100%;
        margin: 0.35rem 0 0.25rem;
        line-height: 0;
        font-size: 0;
        color: transparent;
    }

    .mode-toggle {
        margin-top: 0;
        padding: 0.4rem 0.62rem 0.2rem;
        width: 100%;
        justify-content: flex-start;
        border-radius: 8px;
    }

    .mode-toggle:hover {
        background: color-mix(in srgb, var(--accent) 10%, transparent);
    }
}

@media (max-width: 560px) {
    .socials {
        gap: 0.9rem;
        flex-wrap: wrap;
    }

    .blob {
        top: 38%;
        left: 70%;
    }
}