:root {
    --bg-color: #070b14;
    /* --bg-accent: rgba(65, 105, 225, 0.35); */
    --fg-color: #f4f6ff;
    --muted: rgba(244, 246, 255, 0.72);
    --accent: #79b8ff;
    --accent-strong: #4a9dff;
    --card-bg: rgba(10, 17, 35, 0.75);
    --surface-elevated: rgba(10, 17, 35, 0.85);
    --popover-bg: rgba(7, 11, 20, 0.92);
    --menu-toggle-bg: rgba(7, 11, 20, 0.3);
    --input-bg: rgba(5, 10, 20, 0.65);
    --input-border: rgba(121, 184, 255, 0.2);
    --border: rgba(121, 184, 255, 0.16);
    --shadow: 0 24px 60px -32px rgba(0, 0, 0, 0.75);
    --blur: 18px;
}

body[data-theme="light"] {
    --bg-color: #f6f9ff;
    --bg-accent: rgba(121, 184, 255, 0.35);
    --fg-color: #0b1220;
    --muted: rgba(11, 18, 32, 0.6);
    --accent: #3a6dff;
    --accent-strong: #2851d4;
    --card-bg: rgba(255, 255, 255, 0.94);
    --surface-elevated: rgba(255, 255, 255, 0.96);
    --popover-bg: rgba(245, 248, 255, 0.98);
    --menu-toggle-bg: rgba(227, 235, 255, 0.92);
    --input-bg: rgba(255, 255, 255, 0.82);
    --input-border: rgba(40, 70, 120, 0.15);
    --border: rgba(17, 33, 65, 0.08);
    --shadow: 0 24px 48px -28px rgba(40, 70, 120, 0.35);
    --blur: 28px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--fg-color);
    background-color: var(--bg-color);
    scroll-behavior: smooth;
}

body {
    position: relative;
    overflow-x: hidden;
}

.dynamic-background {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 0;
    overflow: hidden;
}



#particles-js {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}
.gradient-overlay {
    position: absolute;
    z-index: 1;
    top: -25%;
    right: -25%;
    bottom: -25%;
    left: -25%;
    background: radial-gradient(circle at 20% 20%, var(--bg-accent) 0%, transparent 55%),
                radial-gradient(circle at 80% 15%, rgba(122, 59, 255, 0.18) 0%, transparent 50%),
                radial-gradient(circle at 50% 90%, rgba(59, 214, 255, 0.15) 0%, transparent 55%);
    animation: drift 24s ease-in-out infinite alternate;
    filter: blur(var(--blur));
    pointer-events: none;
}

body[data-theme="light"] .gradient-overlay {
    background: radial-gradient(circle at 20% 20%, rgba(121, 184, 255, 0.45) 0%, transparent 58%),
                radial-gradient(circle at 78% 18%, rgba(232, 201, 255, 0.35) 0%, transparent 55%),
                radial-gradient(circle at 52% 90%, rgba(173, 224, 255, 0.32) 0%, transparent 58%);
    opacity: 0.9;
}
@keyframes drift {
    0% { transform: translate3d(-5%, -3%, 0) scale(1.05); }
    50% { transform: translate3d(3%, 2%, 0) scale(1.1); }
    100% { transform: translate3d(-2%, 4%, 0) scale(1.08); }
}

.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 1.25rem 0;
    backdrop-filter: blur(14px);
    background: linear-gradient(90deg, rgba(7, 11, 20, 0.6), rgba(7, 11, 20, 0.25));
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

body[data-theme="light"] .site-header {
    background: linear-gradient(90deg, rgba(246, 249, 255, 0.95), rgba(246, 249, 255, 0.75));
    border-bottom: 1px solid rgba(40, 70, 120, 0.12);
    box-shadow: 0 18px 36px -28px rgba(40, 70, 120, 0.28);
}

.site-header-inner {
    width: min(1300px, calc(100% - 10vw));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.logo {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.3rem;
    text-decoration: none;
    color: var(--fg-color);
    display: inline-block;
}

.menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    background: var(--menu-toggle-bg);
    color: var(--fg-color);
    cursor: pointer;
    padding: 0.4rem;
    gap: 0.35rem;
    flex-direction: column;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.menu-toggle:hover,
.menu-toggle:focus {
    background: rgba(121, 184, 255, 0.18);
    border-color: var(--accent);
}

.menu-toggle-bar {
    width: 1.35rem;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.site-nav {
    display: flex;
    gap: 1.75rem;
    font-size: 0.95rem;
}

.site-nav a {
    text-decoration: none;
    color: var(--muted);
    transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus {
    color: var(--accent);
}

.controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-button {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--fg-color);
    border-radius: 999px;
    padding: 0.35rem 0.8rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.language-switch {
    display: flex;
    border-radius: 999px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.lang-button {
    background: transparent;
    border: none;
    color: var(--muted);
    padding: 0.35rem 0.9rem;
    cursor: pointer;
    font-size: 0.85rem;
}

.lang-button.active {
    background: var(--accent);
    color: #02050b;
}

main {
    position: relative;
    z-index: 2;
    max-width: 1300px;
    width: 100%;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 5vw, 3rem) 5vw;
}
.hero {
    display: grid;
    gap: 3rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    padding: 7rem 0 5rem;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 4vw, 3.6rem);
    margin: 0.75rem 0 1.5rem;
    line-height: 1.1;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.25rem;
    font-size: 0.75rem;
    color: var(--muted);
    display: inline-block;
}

.lead {
    font-size: 1.1rem;
    color: var(--muted);
    max-width: 48ch;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.primary,
.secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.7rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.primary {
    background: var(--accent);
    color: #02050b;
    box-shadow: 0 20px 45px -25px rgba(121, 184, 255, 0.9);
}

.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 60px -20px rgba(121, 184, 255, 0.75);
}

.secondary {
    border: 1px solid var(--border);
    color: var(--fg-color);
}

.secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.hero-highlights {
    display: grid;
    gap: 1.5rem;
}

.highlight-card {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 1.75rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.highlight-card:hover {
    transform: translateY(-4px);
    border-color: rgba(121, 184, 255, 0.42);
}

.section {
    margin-top: 6rem;
}

.section-heading {
    max-width: 640px;
}

.section-heading h2 {
    font-size: clamp(2rem, 3vw, 2.8rem);
    margin: 0.75rem 0;
}

.section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
    /* text-align: center; */
    align-items: center; 
    
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 1rem;
}

.about-list li {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow);
}

.timeline {
    margin-top: 3rem;
    display: grid;
    gap: 2.5rem;
}

.timeline-item {
    background: var(--card-bg);
    border-radius: 18px;
    border: 1px solid var(--border);
    padding: 2rem;
    box-shadow: var(--shadow);
    position: relative;
}

.timeline-item header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
}

.timeline-item .meta {
    color: var(--muted);
    font-size: 0.85rem;
}

.timeline-item ul {
    margin-top: 1.25rem;
    padding-left: 1.1rem;
    color: var(--muted);
}

.projects-grid {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border-radius: 18px;
    border: 1px solid var(--border);
    padding: 2rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: rgba(121, 184, 255, 0.42);
}

.project-meta {
    display: flex;
    justify-content: space-between;
    color: var(--muted);
    font-size: 0.85rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.project-tags li {
    border: 1px solid var(--border);
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    font-size: 0.78rem;
    color: var(--muted);
}

.project-link {
    text-decoration: none;
    color: var(--accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.skills-grid {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.skill-column {
    background: var(--card-bg);
    border-radius: 18px;
    border: 1px solid var(--border);
    padding: 1.75rem;
    box-shadow: var(--shadow);
}

.skill-column h3 {
    margin-top: 0;
}

.skill-column ul {
    padding-left: 1.1rem;
    margin: 1rem 0 0;
    color: var(--muted);
}

.contact {
    backdrop-filter: blur(12px);
}

.contact-grid {
    margin-top: 3rem;
    display: grid;
    gap: 2.5rem;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.contact-card {
    background: var(--card-bg);
    border-radius: 18px;
    border: 1px solid var(--border);
    padding: 2.25rem;
    box-shadow: var(--shadow);
}

.contact-details {
    list-style: none;
    padding: 0;
    margin: 2rem 0 0;
    display: grid;
    gap: 1rem;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.contact-details a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.contact-action {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    border: 1px solid transparent;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.contact-action.primary {
    padding: 0.85rem 1.7rem;
}

.contact-action.secondary {
    padding: 0.8rem 1.5rem;
    background: transparent;
    color: var(--fg-color);
    border-color: var(--border);
}

.contact-action.secondary:hover {
    transform: translateY(-1px);
    background: rgba(121, 184, 255, 0.16);
    border-color: rgba(121, 184, 255, 0.28);
}

body[data-theme="light"] .contact-action.secondary {
    color: var(--accent-strong);
    border-color: rgba(40, 70, 120, 0.18);
    background: rgba(227, 235, 255, 0.35);
}

body[data-theme="light"] .contact-action.secondary:hover {
    background: rgba(121, 184, 255, 0.5);
}

.contact-linkedin svg {
    width: 1.25rem;
    height: 1.25rem;
    fill: currentColor;
}

.contact-form {
    background: var(--surface-elevated);
    color: var(--fg-color);
    border-radius: 18px;
    border: 1px solid var(--border);
    padding: 2.25rem;
    box-shadow: var(--shadow);
    display: grid;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    gap: 0.45rem;
}

label {
    font-size: 0.85rem;
    letter-spacing: 0.04rem;
    text-transform: uppercase;
    color: var(--muted);
}

input,
textarea {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 14px;
    padding: 0.85rem 1rem;
    color: var(--fg-color);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(121, 184, 255, 0.15);
}

textarea {
    resize: vertical;
}

.site-footer {
    width: min(1300px, calc(100% - 10vw));
    margin: 0 auto;
    padding: 2rem 0 3rem;
    color: var(--muted);
    text-align: center;
}
[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

.photo-section .section-heading {
    max-width: 640px;
}

.photo-grid {
    margin-top: 3rem;
    display: grid;
    gap: 2.5rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    align-items: center;
}

.photo-card {
    background: var(--card-bg);
    border-radius: 24px;
    border: 1px solid var(--border);
    padding: 2rem;
    box-shadow: var(--shadow);
    display: grid;
    gap: 1.25rem;
    justify-items: center;
    overflow: hidden;
}

.photo-card img {
    width: min(320px, 100%);
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: 18px;
    border: 2px solid rgba(121, 184, 255, 0.4);
    box-shadow: 0 24px 48px -28px rgba(7, 11, 20, 0.65);
    background: rgba(10, 17, 35, 0.5);
}

.photo-card figcaption {
    font-size: 0.9rem;
    color: var(--muted);
    text-align: center;
}

.photo-description {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--muted);
    max-width: 540px;
    justify-self: start;
}

.photo-section .photo-description {
    margin: 0;
}
@media (max-width: 960px) {
    .site-header-inner {
        width: 100%;
        padding: 0 1.5rem;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .site-nav {
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        order: 2;
    }

    .controls {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .hero {
        padding-top: 5rem;
    }

    main {
        padding: 0 1.5rem 4rem;
    }

    .photo-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .photo-description {
        justify-self: center;
    }

    .photo-card {
        margin: 0 auto;
    }

    .site-footer {
        width: 100%;
        padding: 2rem 1.5rem 3rem;
    }
}


@media (max-width: 720px) {
    .site-header-inner {
        position: relative;
        flex-wrap: nowrap;
        align-items: center;
        gap: 1rem;
    }

    .menu-toggle {
        display: flex;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: calc(100% + 0.75rem);
        right: 0;
        left: 0;
        margin: 0;
        padding: 1.25rem;
        background: var(--popover-bg);
        border: 1px solid var(--border);
        border-radius: 1rem;
        box-shadow: var(--shadow);
        z-index: 9;
        flex-direction: column;
        gap: 1rem;
        order: initial;
        width: auto;
    }

    .site-nav[data-visible="true"] {
        display: flex;
    }

    .site-nav a {
        padding: 0.5rem 0;
        color: var(--fg-color);
    }

    .controls {
        order: initial;
        width: auto;
        margin-left: auto;
    }
}

/* Offset anchor targets below sticky header */
section {
    scroll-margin-top: 120px;
}
















@media (max-width: 540px) {
    .contact-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .contact-action {
        width: 100%;
        justify-content: center;
    }
}