@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;700&display=swap');

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

:root {
    --bg: #f8f9fc;
    --bg-soft: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.75);
    --text: #121826;
    --text-soft: #4c556a;
    --stroke: rgba(18, 24, 38, 0.08);
    --primary-color: #6f58ff;
    --primary-glow: rgba(111, 88, 255, 0.28);
    --secondary-color: #00c2ff;
    --success: #30d158;
    --shadow-soft: 0 20px 55px rgba(22, 30, 50, 0.08);
    --shadow-strong: 0 30px 80px rgba(22, 30, 50, 0.14);
    --container: 1200px;
    --container-padding: 2rem;
    --radius: 2rem;
    --radius-md: 1.4rem;
    --section-spacing: clamp(7rem, 9vw, 12rem);
    --title-font-family: 'Space Grotesk', sans-serif;
    --body-font-family: 'Inter', sans-serif;
}

body.dark-theme {
    --bg: #090d1b;
    --bg-soft: #10162a;
    --card-bg: rgba(17, 23, 41, 0.72);
    --text: #e9ecf7;
    --text-soft: #acb5cf;
    --stroke: rgba(255, 255, 255, 0.12);
    --primary-color: #7f72ff;
    --primary-glow: rgba(127, 114, 255, 0.4);
    --secondary-color: #00d5ff;
    --shadow-soft: 0 18px 55px rgba(1, 3, 10, 0.45);
    --shadow-strong: 0 35px 90px rgba(1, 3, 10, 0.6);
}

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font-family);
    font-size: 1.6rem;
    line-height: 1.65;
    color: var(--text);
    background:
        radial-gradient(65vw 65vw at 95% -5%, rgba(111, 88, 255, 0.16), transparent 58%),
        radial-gradient(60vw 60vw at 0% 100%, rgba(0, 194, 255, 0.1), transparent 55%),
        var(--bg);
    overflow-x: hidden;
}

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

img {
    max-width: 100%;
    display: block;
}

ul {
    list-style: none;
}

button,
input,
textarea {
    font: inherit;
    color: inherit;
    border: 0;
    background: transparent;
    outline: none;
}

.container {
    width: min(var(--container), 100% - 2 * var(--container-padding));
    margin-inline: auto;
}

.section {
    padding-block: var(--section-spacing);
}

.d-grid {
    display: grid;
}

.title {
    font-family: var(--title-font-family);
    letter-spacing: -0.03em;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.3rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-soft);
    margin-bottom: 1.6rem;
}

.eyebrow::before {
    content: '';
    width: 2.6rem;
    height: 1px;
    background: var(--secondary-color);
}

.button {
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.primary-button,
.ghost-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 4.8rem;
    padding: 1.2rem 2.2rem;
    border-radius: 99px;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.button-fill {
    background: linear-gradient(135deg, var(--primary-color), #917cff);
    color: #fff;
    box-shadow: 0 10px 30px var(--primary-glow);
}

.button-fill:hover,
.button-fill:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 14px 36px var(--primary-glow);
}

.ghost-button {
    border: 1px solid var(--stroke);
    color: var(--text);
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(8px);
}

.ghost-button:hover,
.ghost-button:focus-visible {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(14px);
    background: color-mix(in srgb, var(--bg) 70%, transparent);
    border-bottom: 1px solid var(--stroke);
}

.navbar {
    min-height: 8.4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.logo {
    font-family: var(--title-font-family);
    font-size: clamp(2.2rem, 2vw, 2.8rem);
    font-weight: 700;
}

.navbar-buttons {
    display: flex;
    gap: 0.8rem;
    position: relative;
    z-index: 5;
}

.icon-button {
    width: 4.2rem;
    height: 4.2rem;
    border: 1px solid var(--stroke);
    border-radius: 1.1rem;
    display: grid;
    place-items: center;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
}

.icon-button i {
    font-size: 2.2rem;
}

.close-icon,
.theme-on {
    display: none;
}

.menu {
    position: absolute;
    top: calc(100% - 0.6rem);
    right: 0;
    width: min(30rem, 86vw);
    padding: 1.6rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--stroke);
    background: var(--card-bg);
    backdrop-filter: blur(14px);
    box-shadow: var(--shadow-soft);
    transform: translateY(-1rem) scale(0.98);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s ease;
}

.list {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.menu .list {
    flex-direction: column;
    align-items: stretch;
}

.list-link {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.2rem;
    border-radius: 1rem;
    color: var(--text);
    font-size: 1.4rem;
    font-weight: 500;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.list-link span {
    font-size: 1.2rem;
    color: var(--text-soft);
}

.list-link:hover,
.list-link:focus-visible {
    background: color-mix(in srgb, var(--primary-color) 12%, transparent);
}

.active.menu {
    transform: translateY(0) scale(1);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.active .open-icon {
    display: none;
}

.active .close-icon,
.dark-theme .theme-on {
    display: block;
}

.dark-theme .theme-off {
    display: none;
}

.hero {
    padding-top: clamp(5rem, 8vw, 10rem);
}

.hero-grid {
    display: grid;
    gap: 2.2rem;
}

.hero-grid.compact {
    align-items: center;
}

.main-title {
    font-size: clamp(3.2rem, 6.6vw, 7.6rem);
    line-height: 1.05;
    max-width: 11ch;
}

.hero-description,
.description,
.section-intro {
    color: var(--text-soft);
}

.hero-description {
    margin-top: 2rem;
    max-width: 55ch;
    font-size: clamp(1.6rem, 2vw, 2rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    margin-top: 2.8rem;
}

.hero-bento {
    display: grid;
    gap: 1.4rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.glass-card {
    position: relative;
    border-radius: var(--radius);
    border: 1px solid var(--stroke);
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-soft);
    padding: 2rem;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(130deg, rgba(255, 255, 255, 0.35), transparent 45%);
    opacity: 0.45;
}

.bento h3 {
    font-size: clamp(2rem, 2.4vw, 3rem);
    margin-bottom: 0.6rem;
    font-family: var(--title-font-family);
}

.bento p {
    color: var(--text-soft);
    font-size: 1.4rem;
}

.bento-label {
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    margin-bottom: 1.1rem;
    color: var(--secondary-color);
}

.bento-highlight {
    grid-column: span 2;
}

.bento-avatar {
    width: 6.8rem;
    height: 6.8rem;
    object-fit: cover;
    border-radius: 1.8rem;
    margin-bottom: 1.2rem;
    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.2);
}

.bento-ai {
    border-style: dashed;
    border-color: color-mix(in srgb, var(--secondary-color) 60%, var(--stroke));
}

.bento-ai-media {
    margin: 1rem 0 1.2rem;
    border-radius: 1.2rem;
    overflow: hidden;
    border: 1px solid var(--stroke);
    min-height: 13rem;
}

.bento-ai-media img {
    width: 100%;
    height: 100%;
    min-height: 13rem;
    object-fit: cover;
    filter: saturate(1.05) contrast(1.04);
}

.section-title-container {
    margin-bottom: 3.2rem;
}

.section-title {
    font-size: clamp(2.8rem, 5vw, 5.6rem);
    line-height: 1.05;
    margin-bottom: 1.4rem;
}

.section-intro {
    max-width: 62ch;
}

.projects-grid {
    display: grid;
    gap: 1.6rem;
}

.portfolio-card {
    display: block;
    border: 1px solid var(--stroke);
    border-radius: var(--radius);
    padding: 1.2rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
    transform: translateY(0);
    transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.portfolio-card:hover,
.portfolio-card:focus-visible {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
    border-color: color-mix(in srgb, var(--primary-color) 55%, var(--stroke));
}

.card-image {
    border-radius: calc(var(--radius) - 0.8rem);
    overflow: hidden;
    background: color-mix(in srgb, var(--primary-color) 12%, transparent);
    min-height: 21rem;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.94);
    transition: transform 0.45s ease, filter 0.45s ease;
    will-change: transform;
}

.portfolio-card:hover .card-image img {
    transform: scale(1.05);
    filter: saturate(1.04);
}

.card-heading {
    padding: 1.6rem 0.6rem 0.6rem;
}

.card-title {
    font-size: 2.2rem;
    line-height: 1.2;
    font-family: var(--title-font-family);
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: var(--text-soft);
    font-size: 1.45rem;
}

.portfolio-footer {
    margin-top: 3.4rem;
    display: flex;
    justify-content: center;
}

.about-grid {
    display: grid;
    gap: 2.4rem;
}

.about-content .section-title {
    margin-bottom: 2rem;
}

.description {
    font-size: 1.7rem;
    margin-bottom: 1.4rem;
}

.tech-stack-wrapper {
    border: 1px solid var(--stroke);
    border-radius: var(--radius);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
    padding: 2.2rem;
}

.stack-title {
    font-size: 1.9rem;
    margin-bottom: 1.8rem;
    font-family: var(--title-font-family);
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(6.6rem, 1fr));
    gap: 1.4rem;
}

.tech-stack-item {
    position: relative;
    border: 1px solid var(--stroke);
    border-radius: 1.4rem;
    min-height: 6.6rem;
    display: grid;
    place-items: center;
    background: color-mix(in srgb, var(--bg-soft) 75%, transparent);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.tech-stack-item i {
    font-size: 3.2rem;
}

.tech-stack-item img {
    width: 2.8rem;
    height: 2.8rem;
    object-fit: contain;
}

.tech-stack-item:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--secondary-color) 55%, var(--stroke));
}

.tech-stack-item::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 50%;
    top: -0.6rem;
    transform: translate(-50%, -100%);
    background: var(--text);
    color: var(--bg);
    padding: 0.4rem 0.8rem;
    border-radius: 0.8rem;
    font-size: 1.1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    white-space: nowrap;
}

.tech-stack-item:hover::after {
    opacity: 1;
}

.download-cv {
    margin-top: 2rem;
}

.contact-layout {
    display: grid;
    gap: 2rem;
}

.contact-points {
    display: grid;
    gap: 0.9rem;
    margin-top: 1.8rem;
}

.contact-points li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-soft);
}

.contact-points i {
    color: var(--success);
    font-size: 1.8rem;
}

.form-container {
    border: 1px solid var(--stroke);
    border-radius: var(--radius);
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-soft);
    padding: clamp(2rem, 3.2vw, 3.2rem);
}

.contact-form {
    display: grid;
    gap: 1.3rem;
}

.input-group {
    display: grid;
    gap: 1.3rem;
}

.input {
    position: relative;
}

.input input,
.input textarea {
    width: 100%;
    padding: 2.4rem 1.2rem 1.1rem;
    border-radius: 1.2rem;
    border: 1px solid var(--stroke);
    background: color-mix(in srgb, var(--bg-soft) 75%, transparent);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    resize: vertical;
    min-height: 5.2rem;
}

.input textarea {
    min-height: 15rem;
}

.input-label {
    position: absolute;
    top: 1.5rem;
    left: 1.2rem;
    font-size: 1.25rem;
    color: var(--text-soft);
    pointer-events: none;
    transition: transform 0.2s ease, color 0.2s ease, font-size 0.2s ease;
}

.input input:focus,
.input textarea:focus {
    border-color: color-mix(in srgb, var(--primary-color) 55%, var(--stroke));
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-color) 24%, transparent);
}

.input input:focus + .input-label,
.input textarea:focus + .input-label,
.input input:valid + .input-label,
.input textarea:valid + .input-label {
    transform: translateY(-1rem);
    font-size: 1.05rem;
    color: var(--secondary-color);
}

.required-field {
    color: #ff668a;
}

.form-feedback {
    display: none;
    padding: 1.1rem 1.2rem;
    border-radius: 1rem;
    font-size: 1.4rem;
    line-height: 1.5;
    border: 1px solid transparent;
}

.form-feedback.is-visible {
    display: block;
}

.form-feedback.is-success {
    background: rgba(48, 209, 88, 0.12);
    border-color: rgba(48, 209, 88, 0.45);
    color: #6ce08f;
}

.form-feedback.is-error {
    background: rgba(255, 102, 138, 0.12);
    border-color: rgba(255, 102, 138, 0.45);
    color: #ff9eb5;
}

.footer {
    padding-bottom: 2.4rem;
}

.footer-container {
    border-top: 1px solid var(--stroke);
    padding-top: 2.6rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.4rem;
    align-items: center;
    justify-content: space-between;
}

.social-media .list {
    gap: 0.9rem;
}

.social-media .list-link {
    width: 4rem;
    height: 4rem;
    border-radius: 1rem;
    border: 1px solid var(--stroke);
    display: grid;
    place-items: center;
    background: var(--card-bg);
}

.social-media .list-link i {
    font-size: 2rem;
}

.social-media .list-link:hover {
    border-color: color-mix(in srgb, var(--primary-color) 45%, var(--stroke));
}

.scroll-top {
    width: 4rem;
    height: 4rem;
    border-radius: 1rem;
    border: 1px solid var(--stroke);
    display: grid;
    place-items: center;
}

.scroll-top:hover {
    background: color-mix(in srgb, var(--primary-color) 16%, transparent);
}

.js-reveal {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.js-reveal.in-view {
    opacity: 1;
    transform: translateY(0);
}

::-webkit-scrollbar {
    width: 0.9rem;
}

::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--primary-color) 70%, #6074ff);
    border-radius: 99px;
}

::-webkit-scrollbar-track {
    background: var(--bg-soft);
}

@media (min-width: 700px) {
    .projects-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .input-group {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 900px) {
    .menu {
        position: static;
        width: auto;
        padding: 0;
        border: 0;
        background: transparent;
        backdrop-filter: none;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: none;
    }

    .menu .list {
        flex-direction: row;
        gap: 0.2rem;
    }

    .menu-toggle-button {
        display: none;
    }

    .hero-grid {
        grid-template-columns: 1.1fr 0.95fr;
        align-items: end;
    }

    .about-grid {
        grid-template-columns: 1.1fr 0.9fr;
        align-items: start;
    }

    .contact-layout {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

@media (min-width: 1100px) {
    .projects-grid {
        grid-template-columns: repeat(12, minmax(0, 1fr));
    }

    .projects-grid .portfolio-card {
        grid-column: span 4;
    }

    .projects-grid .portfolio-card:nth-child(1),
    .projects-grid .portfolio-card:nth-child(4),
    .projects-grid .portfolio-card:nth-child(5) {
        grid-column: span 6;
    }

    .projects-grid-all .portfolio-card {
        grid-column: span 4;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}