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

html {
    scrollbar-gutter: stable;
}

::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 100px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

@supports not selector(::-webkit-scrollbar) {
    html {
        scrollbar-width: thin;
        scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
    }
}

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

button {
    cursor: pointer;
}

h1, h2 {
    font-size: var(--text-hero);
    font-weight: var(--font-semibold);
    color: var(--text-heading);
}

body {
    font-family: "Segoe UI", sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
}

body:has(#mainContent) main .section > *,
body:has(#mainContent) main .section > * > *:not(.back-link) {
    opacity: 0;
}

html:has(.lightbox-modal[open]),
body:has(.lightbox-modal[open]) {
    overflow: hidden;
}

body:has(.lightbox-modal[open]) {
    position: fixed;
    width: 100%;
}

body.error-page .nav-links,
body.error-page .language-switcher,
body.error-page .menu-toggle,
body.error-page .nav-separator {
    display: none;
}

main {
    display: flex;
    flex-direction: column;
    gap: var(--gap-2xl);
    transition: margin-top 0.3s ease;
    contain: layout style paint;
}

.flex {
    display: flex;
}

.grid {
    display: grid;
}

.section {
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.section > h1, .section.skills > h2, .section.featured-projects > h2 {
    margin-bottom: 1rem;
}

.navbar {
    background: var(--nav-bg);
    justify-content: space-between;
    padding: .5rem 0 .5rem;
    transition: background-color 0.3s ease;
    margin-top: 1rem;
    margin-bottom: 2rem;
    font-family: "Geist Mono", monospace;
    contain: layout style;
    z-index: 1;
    position: relative;
}

.nav-left-wrapper {
    align-items: center;
    gap: var(--gap-sm);
}

.nav-right-wrapper {
    align-items: center;
    gap: var(--gap-sm);
    justify-content: flex-end;
    margin-left: auto;
}

.nav-title {
    font-weight: 800;
}

.nav-title,
.nav-item {
    color: var(--text-color);
    transition: opacity 0.2s ease, color 0.2s ease;
}

.nav-item:hover {
    color: var(--text-hover);
}

.nav-item.active {
    color: var(--text-heading);
}

.nav-links {
    gap: var(--gap-md);
}

.nav-links,
.language-switcher,
.menu-toggle,
.nav-separator,
.theme-toggle {
    opacity: 1;
    transform: translateX(0);
}

.nav-separator {
    transform: translate3d(0, 0, 0);
    isolation: isolate;
    backface-visibility: hidden;
    contain: layout style paint;
}

.nav-intro {
    animation: slideInFromRight 0.4s ease;
}


.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    transition: color 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
    margin-left: .5rem;
}

.theme-toggle .sun-icon {
    display: block;
}

.theme-toggle .moon-icon {
    display: none;
}

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

[data-theme="light"] .theme-toggle .moon-icon {
    display: block;
}

.menu-toggle {
    width: 24px;
    height: 24px;
    cursor: pointer;
    background: none;
    border: none;
    display: none;
}

.menu-toggle svg {
    width: 100%;
    height: 100%;
}

.menu-toggle line {
    stroke: var(--text-color);
    stroke-width: 2;
    stroke-linecap: round;
    transition: all 0.3s ease;
}

.menu-toggle.active .line1 {
    animation: line1-open 0.4s ease forwards;
}

.menu-toggle.active .line2 {
    animation: line2-open 0.4s ease forwards;
}

.menu-toggle:not(.active) .line1 {
    animation: line1-close 0.4s ease forwards;
}

.menu-toggle:not(.active) .line2 {
    animation: line2-close 0.4s ease forwards;
}

.effect-container {
    position: absolute;
    width: 100%;
    height: 250px;
    top: 0;
    overflow: hidden;
    pointer-events: none;
}

.effect-wrapper {
    position: absolute;
    left: -100%;
    width: 300%;
    height: 100%;
    opacity: 0.8;
    z-index: var(--z-behind);
    mask: radial-gradient(farthest-side at 50% -100%, #000, transparent 80%);
}

[data-theme="light"] .effect-wrapper {
    opacity: 1;
}

.beam-wrapper {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    mask:
        linear-gradient(45deg, transparent 35%, rgba(0,0,0,0.9) 40%, transparent 45%, rgba(0,0,0,0.6) 50%, transparent 55%, rgba(0,0,0,0.9) 60%, transparent 65%),
        linear-gradient(rgba(0,0,0,0.8), transparent 75%);
    mask-position: 50% 0, 0 0;
    mask-size: 200%, auto;
}

.rainbow {
    position: absolute;
    left: -10%;
    width: 120%;
    aspect-ratio: 1;
    animation: spin 8s linear infinite;
    background: conic-gradient(#2fc265 0%, #2aa272 20%, #369883 40%, #6e6bd0 60%, #369883 80%, #2aa272 90%, #2fc265 100%);
}

.about-title {
    gap: var(--gap-xs);
}

.wave {
    cursor: default;
}

.wave:hover {
    animation: wave .6s ease-in-out 3 alternate;
}

.location-wrapper {
    align-items: center;
    gap: var(--gap-xs);
    margin-top: .2rem;
}

.location {
    font-size: var(--text-medium);
}

.description {
    margin: 1.5rem 0 1rem;
}

.social-links,
.social-link {
    align-items: center;
    gap: var(--gap-md);
}

.email-button,
.social-link svg {
    color: var(--text-heading);
    transition: opacity .2s;
}

.social-link:hover svg {
    opacity: .6;
}

.email-button {
    background: var(--button-bg);
    align-items: center;
    border: 1px solid;
    border-radius: var(--radius-md);
    border-color: var(--border);
    padding: .5rem 1rem .5rem 1rem;
    gap: var(--gap-sm);
    font-weight: var(--font-medium);
    font-size: var(--text-small);
    transition: .3s;
}

.email-button span {
    display: inline-block;
    transition: .3s;
}

.email-button .check-icon {
    display: none;
}

.email-button.copied .copy-icon {
    display: none;
}

.email-button.copied .check-icon {
    display: block;
    animation: copyPulse 0.25s ease-out;
}

.email-button:not(.copied) .copy-icon {
    animation: copyPulse 0.25s ease-out;
}

.email-button.copied span,
.email-button span.animating {
    animation: copyPulse 0.25s ease-out;
}

@media (hover: hover) {
    .email-button:hover {
        color: var(--text-heading-hover);
    }
}

.email-button:active {
    color: var(--text-heading-hover);
}

.skills-wrapper {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap-md);
}

.stack-text-wrapper {
    flex-direction: column;
    justify-content: center;
}

.stack-title {
    font-weight: var(--font-semibold);
    color: var(--text-heading);
}

.stack-logo {
    align-items: center;
    justify-content: center;
    background-color: var(--card-bg-hover);
    border-radius: var(--radius-lg);
    padding: .75rem;
    aspect-ratio: 1;
    transition: .2s;
}

.stack-box {
    position: relative;
    padding: .75rem;
    background-color: var(--card-bg);
    border: 1px solid var(--card-bg);
    border-radius: var(--radius-xl);
    transition: background-color .2s, border-color .2s;
    gap: var(--gap-md);
    text-decoration: none;
    color: inherit;
}

.stack-box:hover {
    background-color: var(--card-bg-hover);
    border: 1px solid var(--card-border-hover);
}

.stack-box:hover .stack-logo {
    background-color: var(--accent-strong);
}

.stack-box:hover .stack-logo svg {
    color: var(--card-logo-icon);
}

.external-link {
    position: absolute;
    top: .75rem;
    right: .75rem;
    opacity: 0;
    transition: opacity .2s ease-in-out .15s;
}

.stack-box:hover .external-link {
    opacity: 1;
}

.home-projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap-md);
}

.home-project-card {
    position: relative;
    padding: 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--card-bg);
    border-radius: var(--radius-xl);
    transition: background-color .2s, border-color .2s;
    text-decoration: none;
    color: inherit;
    flex-direction: column;
    gap: var(--gap-sm);
    overflow: hidden;
}

.home-project-card:hover {
    background-color: var(--card-bg-hover);
    border: 1px solid var(--card-border-hover);
}

.home-project-banner-wrapper {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.home-project-banner {
    width: 100%;
    aspect-ratio: 16/9;
    transition: transform .3s ease;
    height: 140%;
    object-fit: cover;
}

.home-project-title {
    font-weight: var(--font-semibold);
    color: var(--text-heading);
    font-size: var(--text-medium);
}

.home-project-description {
    color: var(--text-color);
    font-size: var(--text-small);
}

.home-project-stacks {
    flex-wrap: wrap;
    gap: var(--gap-sm);
    margin-top: auto;
    padding-top: 1rem;
}

.home-project-stack-badge {
    display: flex;
    align-items: center;
    gap: var(--gap-xs);
    padding: .25rem .75rem;
    background-color: var(--card-bg-hover);
    border-radius: var(--radius-md);
    font-size: .875rem;
    color: var(--text-color);
}

.home-project-stack-badge i {
    font-size: 16px;
}

.home-project-arrow {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    opacity: 0;
    transition: opacity .2s ease-in-out .15s;
}

.home-project-card:hover .home-project-arrow {
    opacity: 1;
}

.projects {
    gap: var(--gap-xl);
}

.project-card {
    position: relative;
    flex-direction: column;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.project-image-wrapper {
    position: relative;
    cursor: pointer;
}

.project-banner-wrapper {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.project-banner {
    width: 100%;
    height: 125%;
    object-fit: cover;
    object-position: top;
    transition: transform .3s ease;
    touch-action: manipulation;
}

.project-card.touch-hovered .project-banner {
    transform: translateY(-18%);
}

.project-stacks {
    position: absolute;
    top: .75rem;
    right: .75rem;
    flex-direction: column;
    gap: var(--gap-sm);
}

.project-stack-badge {
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background-color: hsla(0, 0%, 0%, 0.6);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-md);
    color: white;
}

.project-stack-badge i {
    font-size: 20px;
}

.project-info-wrapper {
    flex-direction: column;
    gap: var(--gap-md);
    padding: 1rem;
    background: linear-gradient(to bottom, var(--card-bg) 0%, var(--card-bg) 40%, transparent 100%);
}

.project-content {
    flex-direction: column;
    gap: var(--gap-sm);
}

.project-title {
    font-weight: var(--font-semibold);
    color: var(--text-heading);
    font-size: var(--text-medium);
}

.project-description {
    color: var(--text-color);
    font-size: var(--text-small);
}

.project-info-wrapper:not(:has(.project-links > *)) .project-description {
    margin-bottom: 1.5rem;
}

.project-links {
    gap: var(--gap-sm);
}

.project-action-link {
    display: flex;
    align-items: center;
    background-color: var(--button-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: var(--text-small);
    text-decoration: none;
    transition: all .2s;
}

.project-action-link:hover {
    border-color: var(--card-border-hover);
}

.project-action-link.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: unset;
}

.project-action-link.disabled:hover {
    background-color: var(--card-bg-hover);
    border-color: var(--card-border-hover);
    color: inherit;
}

.project-link {
    gap: var(--gap-xs);
    padding: .5rem .75rem;
    color: var(--text-color);
    cursor: pointer;
}

.project-link:hover {
    color: var(--text-heading);
}

.project-more {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    align-items: center;
    gap: var(--gap-xs);
    color: var(--text-color);
    font-size: var(--text-small);
    opacity: 0;
    transform: translateX(1rem);
    transition: opacity .2s, transform .2s, color .2s;
    cursor: pointer;
    text-decoration: none;
}

.project-card.touch-hovered .project-more {
    opacity: 1;
    transform: translateX(0);
}

.project-detail-hero {
    flex-direction: column;
    gap: var(--gap-md);
}

.project-detail-header {
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--gap-md);
}

.project-detail-header .back-link {
    flex-shrink: 0;
    margin-top: 0.3em;
}

.project-detail-title {
    font-size: var(--text-hero);
    font-weight: var(--font-semibold);
    color: var(--text-heading);
    flex: 1;
    min-width: 0;
    margin: 0;
}

.project-detail-text {
    color: var(--text-color);
    font-size: var(--text-small);
    line-height: 1.8;
    white-space: pre-wrap;
}

.project-detail-meta {
    gap: var(--gap-md);
    flex-wrap: wrap;
    margin-top: 1rem;
}

.project-detail-links {
    gap: var(--gap-md);
    flex-wrap: wrap;
}

.project-detail-link {
    gap: var(--gap-sm);
    padding: .5rem 1rem;
    color: var(--text-heading);
}

.project-detail-link:hover {
    background-color: var(--card-bg-hover);
}

.project-detail-gallery {
    margin: 3rem 0;
}

.project-detail-gallery h2 {
    font-size: var(--text-large);
    font-weight: var(--font-semibold);
    color: var(--text-heading);
    margin-bottom: 1.5rem;
}

.project-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap-md);
}

.project-gallery-item {
    position: relative;
    width: 100%;
    cursor: pointer;
    transition: all .2s;
}

.project-gallery-item:hover {
    transform: translateY(-2px);
}

.browser-frame {
    width: 100%;
    height: auto;
    display: block;
}

.browser-frame .bf { fill: var(--browser-frame); }
.browser-frame .bt { fill: var(--browser-titlebar); }
.browser-frame .bi { fill: var(--browser-icon); }
.browser-frame text { font-size: 12px; font-family: Arial, sans-serif; fill: var(--browser-icon); }

.project-gallery-image {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-md);
}

.project-type-badge {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-color);
}

.gallery-more-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background .2s;
}

.gallery-more:hover .gallery-more-overlay {
    background: rgba(0, 0, 0, 0.4);
}

.gallery-more-overlay span {
    font-size: 2.5rem;
    font-weight: var(--font-semibold);
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.project-detail-stack {
    margin: 3rem 0;
}

.project-detail-stack h2 {
    font-size: var(--text-large);
    font-weight: var(--font-semibold);
    color: var(--text-heading);
    margin-bottom: 1.5rem;
}

.project-stacks-detail {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: var(--gap-md);
}

.project-stack-item {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--gap-sm);
    padding: 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all .2s;
    aspect-ratio: 1;
}

.project-stack-item:hover {
    background-color: var(--card-bg-hover);
    border-color: var(--card-border-hover);
}

.project-stack-icon {
    width: 40px;
    height: 40px;
    color: var(--text-heading);
    transition: all .2s;
    text-align: center;
    align-content: center;
}

.project-stack-item:hover .project-stack-icon {
    transform: scale(1.1);
}

.project-stack-name {
    font-size: 12px;
    color: var(--text-color);
    text-align: center;
}

.contact-intro {
    color: var(--text-color);
    font-size: var(--text-small);
    margin-bottom: 2rem;
}

.contact-form {
    flex-direction: column;
    gap: var(--gap-lg);
}

.form-row {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap-md);
}

.form-group {
    flex-direction: column;
    gap: var(--gap-sm);
    position: relative;
}

.form-group label {
    font-weight: var(--font-medium);
    color: var(--text-heading);
    font-size: var(--text-small);
}

.form-group label .required {
    color: var(--color-invalid);
    margin-left: 5px;
}

.form-group input,
.form-group textarea {
    padding: .75rem 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-heading);
    font-size: var(--text-small);
    font-family: inherit;
    transition: border-color .2s, background-color .2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--card-border-hover);
    background-color: var(--card-bg-hover);
}

.form-group input.valid,
.form-group textarea.valid {
    border-color: var(--color-valid);
    padding-right: 40px;
}

.form-group input.valid:focus,
.form-group textarea.valid:focus {
    border-color: var(--color-valid);
    background-color: var(--color-valid-bg);
}

.form-group input.invalid,
.form-group textarea.invalid {
    border-color: var(--color-invalid);
}

.form-group input.invalid:focus,
.form-group textarea.invalid:focus {
    border-color: var(--color-invalid);
    background-color: var(--color-invalid-bg);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
    max-height: 500px;
}

.form-group.shake input,
.form-group.shake textarea {
    animation: shake 0.4s ease;
}

.input-wrapper {
    position: relative;
    align-items: center;
}

.input-wrapper input,
.input-wrapper textarea {
    width: 100%;
}

.input-wrapper .valid-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%) scale(0.5);
    color: var(--color-valid);
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s;
    pointer-events: none;
    stroke-width: 2.5;
}

.input-wrapper:has(textarea) .valid-icon {
    top: 12px;
    transform: translateY(0) scale(0.5);
}

.input-wrapper .valid-icon.show {
    opacity: 1;
    transform: translateY(-50%) scale(1);
}

.input-wrapper:has(textarea) .valid-icon.show {
    transform: translateY(0) scale(1);
}

.form-error {
    color: var(--color-invalid);
    font-size: 12px;
    margin-top: 4px;
    opacity: 0;
    transform: translateY(-5px);
    animation: errorFadeIn 0.2s ease forwards;
}

.form-group:has(.custom-select) {
    position: relative;
    z-index: 1;
}

.form-group:has(.custom-select.open) {
    z-index: 100;
}

.form-group:has(.custom-select) ~ .form-group {
    z-index: 0;
}

.custom-select {
    position: relative;
}

.custom-select.open {
    z-index: 100;
}

.custom-select.invalid .select-trigger {
    border-color: var(--color-invalid);
}

.custom-select.valid .select-trigger {
    border-color: var(--color-valid);
}

.custom-select.shake {
    animation: shake 0.4s ease;
}

.select-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .75rem 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-heading);
    font-size: var(--text-small);
    cursor: pointer;
    transition: border-color .2s, background-color .2s;
}

.select-trigger:hover,
.select-trigger:focus {
    outline: none;
    border-color: var(--card-border-hover);
    background-color: var(--card-bg-hover);
}

.select-trigger svg {
    color: var(--text-color);
    transition: transform .2s;
}

.custom-select.open .select-trigger svg {
    transform: rotate(180deg);
}

.select-value {
    color: var(--text-heading);
}

.select-value.placeholder {
    color: var(--text-color);
}

.select-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: hsla(0, 0%, 6%, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity .35s ease, visibility 0s .35s, transform .25s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8);
    z-index: 9999;
}

[data-theme="light"] .select-dropdown {
    background: hsla(0, 0%, 98%, 0.95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.custom-select.open .select-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition: opacity .15s ease, visibility 0s, transform .15s ease;
}

.select-option {
    padding: .75rem 1rem;
    color: var(--text-color);
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    opacity: 0;
    transform: translateY(-8px);
    transition: background-color .15s, color .15s, opacity .15s ease, transform .15s ease;
}

.select-option:last-child {
    border-bottom: none;
}

.select-option:hover {
    background-color: var(--card-bg-hover);
    color: var(--text-heading);
}

.select-option.selected {
    color: var(--text-heading);
    font-weight: var(--font-medium);
}

.select-option.focused {
    background-color: var(--card-bg-hover);
    color: var(--text-heading);
}

.custom-select.open .select-option {
    opacity: 1;
    transform: translateY(0);
}

.custom-select.open .select-option:nth-child(1) { transition-delay: 0ms; }
.custom-select.open .select-option:nth-child(2) { transition-delay: 50ms; }
.custom-select.open .select-option:nth-child(3) { transition-delay: 100ms; }
.custom-select.open .select-option:nth-child(4) { transition-delay: 150ms; }

.custom-select:not(.open) .select-option:nth-child(4) { transition-delay: 0ms; }
.custom-select:not(.open) .select-option:nth-child(3) { transition-delay: 40ms; }
.custom-select:not(.open) .select-option:nth-child(2) { transition-delay: 80ms; }
.custom-select:not(.open) .select-option:nth-child(1) { transition-delay: 120ms; }

.message-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4px;
    min-height: 20px;
}

.message-footer .form-error {
    animation: errorFadeIn 0.2s ease forwards;
}

.char-counter {
    font-size: 12px;
    color: var(--text-color);
    margin-left: auto;
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
    position: relative;
    z-index: 0;
}

.checkbox-group.invalid .checkmark {
    border-color: var(--color-invalid);
}

.checkbox-group.shake {
    animation: shake 0.4s ease;
}

.checkbox-label {
    align-items: center;
    gap: var(--gap-sm);
    cursor: pointer;
    font-size: var(--text-small);
    color: var(--text-color);
}

.checkbox-label .required {
    color: var(--color-invalid);
    margin-left: 5px;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkbox-label input[type="checkbox"]:focus-visible + .checkmark {
    outline: 2px solid var(--text-heading);
    outline-offset: 2px;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--bg-color);
    border-color: var(--text-heading);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    transform: rotate(45deg) scale(1) translateY(-1px);
}

.checkbox-label:hover .checkmark {
    border-color: var(--card-border-hover);
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background-color: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
    flex-shrink: 0;
}

.checkmark::after {
    content: '';
    width: 4px;
    height: 8px;
    border: solid var(--text-heading);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0) translateY(-1px);
    transition: transform .2s;
}

.submit-button {
    align-items: center;
    justify-content: center;
    gap: var(--gap-sm);
    padding: .75rem 1.5rem;
    background-color: var(--button-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-heading);
    font-size: var(--text-small);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: color .2s, border-color .2s, background-color .2s;
}

.submit-button:hover {
    background-color: var(--card-bg-hover);
    border-color: var(--card-border-hover);
}

.submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.submit-button .spinner {
    display: none;
    animation: spin 1s linear infinite;
}

.submit-button.loading .spinner {
    display: block;
}

.submit-button.loading .send-icon {
    display: none;
}

.honeypot {
    position: absolute;
    left: -9999px;
}

.direct-contact {
    flex-direction: column;
    gap: var(--gap-md);
    margin-top: 4rem;
}

.direct-title {
    color: var(--text-color);
    font-size: var(--text-small);
}

.email-box {
    align-items: center;
    gap: var(--gap-md);
    padding: 1rem;
    border-radius: var(--radius-lg);
    transition: background-color .2s;
    background-color: var(--card-bg);
}

.email-icon {
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--button-bg);
    border-radius: var(--radius-md);
    color: var(--text-heading);
    flex-shrink: 0;
}

.email-info {
    flex-direction: column;
    flex: 1;
}

.email-label {
    color: var(--text-heading);
    font-size: var(--text-small);
    font-weight: var(--font-semibold);
}

.email-row {
    display: inline-flex;
    align-items: center;
    gap: var(--gap-sm);
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: color .2s;
}

.email-row-wrapper {
    display: flex;
}

@media (hover: hover) {
    .email-row:hover .email-text {
        color: var(--text-heading);
    }

    .email-row:hover .copy-icon,
    .email-row:hover .check-icon {
        color: var(--text-heading);
    }
}

.email-row.copied .copy-icon {
    display: none;
}

.email-row.copied .check-icon {
    display: block;
    animation: copyPulse 0.25s ease-out;
}

.email-row:not(.copied) .copy-icon {
    animation: copyPulse 0.25s ease-out;
}

.email-row.copied span.email-text,
span.email-text.animating {
    display: inline-block;
    animation: copyPulse 0.25s ease-out;
}

.email-text {
    color: var(--text-color);
    font-size: var(--text-small);
    cursor: pointer;
    transition: color .2s;
}

.copy-icon,
.check-icon {
    color: var(--text-color);
    transition: color .2s;
}

.check-icon {
    display: none;
}

.lightbox-modal {
    border: none;
    background: transparent;
    max-width: none;
    max-height: none;
    width: 100vw;
    height: 100vh;
    padding: 0;
    margin: 0;
    position: fixed;
    top: 0;
    left: 0;
    overflow: hidden;
}

.lightbox-modal[open] {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: lightboxFadeIn 0.3s ease forwards;
}

.lightbox-modal[open]::backdrop {
    animation: lightboxFadeIn 0.3s ease forwards;
}

.lightbox-modal::backdrop {
    background-color: hsla(0, 0%, 0%, 0.95);
}

.lightbox-modal.fullscreen-mode {
    padding: 0;
    touch-action: manipulation;
}

.lightbox-modal.fullscreen-mode .lightbox-content {
    max-width: 100vw;
    max-height: 100vh;
}

.lightbox-modal.fullscreen-mode .lightbox-images-container {
    max-height: 100vh;
    touch-action: manipulation;
}

.lightbox-modal.fullscreen-mode .lightbox-image {
    max-height: 100vh;
    border-radius: 0;
    object-fit: contain;
    cursor: zoom-out;
}

.lightbox-modal.fullscreen-mode .lightbox-nav,
.lightbox-modal.fullscreen-mode .lightbox-counter {
    opacity: 0;
    pointer-events: none;
}

.lightbox-content {
    position: relative;
    max-width: calc(100% - 350px);
    max-height: 75%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: lightboxScaleIn 0.3s cubic-bezier(0.4, 0.0, 0.2, 1) forwards;
    transition: max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1), max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lightbox-images-container {
    position: relative;
    width: 100%;
    height: 100%;
    max-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
    touch-action: pan-x;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lightbox-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    will-change: transform, opacity;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    user-select: none;
    -webkit-user-drag: none;
    cursor: zoom-in;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-radius 0.3s ease;
}

#lightboxImageCurrent {
    position: relative;
}

#lightboxImageNext {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}

.lightbox-image-hidden {
    opacity: 0;
    pointer-events: none;
}

.lightbox-slide-out-left {
    animation: slideOutLeft 0.3s ease forwards;
}

.lightbox-slide-out-right {
    animation: slideOutRight 0.3s ease forwards;
}

.lightbox-slide-in-right {
    animation: slideInRight 0.3s ease forwards;
}

.lightbox-slide-in-left {
    animation: slideInLeft 0.3s ease forwards;
}

.lightbox-close,
.lightbox-fullscreen {
    position: fixed;
    top: 1rem;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: none;
    color: white;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-md);
    z-index: var(--z-lightbox-close);
}

.lightbox-close {
    right: 1rem;
    font-size: 2rem;
}

.lightbox-fullscreen {
    right: calc(1rem + 40px + 0.5rem);
}

.lightbox-close:hover,
.lightbox-fullscreen:hover {
    opacity: 0.7;
}

.fullscreen-compress {
    display: none;
}

.fullscreen-compress:not(.hidden) {
    display: block;
}

.fullscreen-expand.hidden {
    display: none;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: white;
    padding: 1rem;
    cursor: pointer;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), background 0.2s ease;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: -80px;
}

.lightbox-next {
    right: -80px;
}

.lightbox-counter {
    position: absolute;
    bottom: -2.5rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: var(--text-small);
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

footer {
    text-align: center;
    padding: 5rem 0;
    color: var(--text-color);
    font-size: var(--text-small);
}

.footer-text a {
    color: var(--text-color);
    transition: color 0.3s ease;
}

.footer-text a:hover {
    color: var(--text-hover);
}

.login-link {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    padding: .5rem;
    background-color: var(--button-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-color);
    transition: color .2s, border-color .2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.login-link:hover {
    color: var(--text-heading);
    border-color: var(--card-border-hover);
}

.login-link svg {
    position: absolute;
    transition: opacity .3s ease;
}

.door-open {
    opacity: 0;
}

.login-link:hover .door-closed {
    opacity: 0;
}

.login-link:hover .door-open {
    opacity: 1;
}

.language-switcher {
    position: relative;
    z-index: 12;
    contain: layout style;
}

.lang-dropdown-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 0;
    font-family: "Geist Mono", monospace;
    font-size: inherit;
    transition: color 0.3s ease;
    text-transform: lowercase;
}

.lang-dropdown-btn:hover {
    color: var(--text-hover);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 2px);
    left: 0;
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    min-width: 60px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.lang-dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown-item {
    display: block;
    padding: .5rem .75rem;
    color: var(--text-color);
    transition: color 0.2s, background-color 0.2s;
    text-transform: lowercase;
    text-align: center;
}

.lang-dropdown-item:hover {
    color: var(--text-heading);
    background-color: var(--card-bg-hover);
}

.lang-dropdown-item:first-child {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.lang-dropdown-item:last-child {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: var(--z-lightbox);
    flex-direction: column;
    gap: var(--gap-sm);
}

.toast {
    padding: var(--gap-md) var(--gap-lg);
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow-md);
    animation: slideInRight 0.3s ease;
    min-width: 300px;
    max-width: 400px;
    align-items: center;
    justify-content: space-between;
    gap: var(--gap-md);
}

.toast-closing {
    animation: slideOutRight 0.3s ease;
}

.toast-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.toast-close:hover {
    opacity: 1;
}

.toast-success {
    background-color: var(--success-bg);
    border: 1px solid var(--success-border);
    color: var(--success-color);
}

.toast-error {
    background-color: var(--error-bg);
    border: 1px solid var(--error-border);
    color: var(--error-color);
}

.toast-info {
    background-color: var(--info-bg);
    border: 1px solid var(--info-border);
    color: var(--info-color);
}

.toast-warning {
    background-color: var(--warning-bg);
    border: 1px solid var(--warning-border);
    color: var(--warning-color);
}

.error-header {
    justify-content: space-between;
    align-items: center;
    gap: var(--gap-lg);
    margin-bottom: var(--gap-lg);
}

.error-header h1 {
    margin: 0;
}

.error-message {
    margin: var(--gap-md) 0;
}

.no-projects {
    color: var(--text-color);
    padding: var(--gap-sm) 0;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--gap-sm);
    color: var(--text-heading);
    font-size: var(--text-small);
    font-weight: var(--font-medium);
    text-decoration: none;
    transition: opacity 0.2s;
    white-space: nowrap;
    opacity: 0.6;
}

.back-link:hover {
    opacity: 1 !important;
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes wave {
    0%, 100% { transform: rotate(-10deg); transform-origin: bottom center; }
    50% { transform: rotate(10deg); transform-origin: bottom center; }
}

@keyframes line1-open {
    0% { transform: rotate(0deg) translate(0, 0); }
    50% { transform: rotate(0deg) translate(0, 5px); }
    100% { transform: rotate(45deg) translate(0, 5px); }
}

@keyframes line2-open {
    0% { transform: rotate(0deg) translate(0, 0); }
    50% { transform: rotate(0deg) translate(0, -5px); }
    100% { transform: rotate(-45deg) translate(0, -5px); }
}

@keyframes line1-close {
    0% { transform: rotate(45deg) translate(0, 5px); }
    50% { transform: rotate(0deg) translate(0, 5px); }
    100% { transform: rotate(0deg) translate(0, 0); }
}

@keyframes line2-close {
    0% { transform: rotate(-45deg) translate(0, -5px); }
    50% { transform: rotate(0deg) translate(0, -5px); }
    100% { transform: rotate(0deg) translate(0, 0); }
}

@keyframes lightboxFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes lightboxScaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideOutLeft {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(-100%);
        opacity: 0;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes errorFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

@keyframes copyPulse {
    0% { opacity: 0; transform: translateY(4px); }
    100% { opacity: 1; transform: translateY(0); }
}

@media (hover: hover) and (pointer: fine) {
    .home-project-card:hover .home-project-banner {
        transform: scale(1.05);
    }

    .project-card:hover .project-banner {
        transform: translateY(-18%);
    }

    .project-card:hover .project-more {
        opacity: 1;
        transform: translateX(0);
    }

    .project-more:hover {
        color: var(--text-heading);
    }
}

@media (max-width: 1024px) {
    .effect-container {
        height: 220px;
    }

    .lightbox-modal {
        padding: 1rem;
    }

    .lightbox-modal.fullscreen-mode {
        padding: 0;
    }

    .lightbox-modal.fullscreen-mode .lightbox-nav {
        opacity: 0;
        transition: none;
        pointer-events: none;
    }

    .lightbox-modal.fullscreen-mode .lightbox-content {
        max-width: 100vw;
        max-height: 100vh;
        max-height: 100dvh;
        will-change: max-width, max-height;
    }

    .lightbox-modal.fullscreen-mode .lightbox-images-container {
        max-height: 100vh;
        max-height: 100dvh;
        width: 100%;
        will-change: max-height, width;
    }

    .lightbox-modal.fullscreen-mode .lightbox-image {
        max-height: 100vh;
        max-height: 100dvh;
        will-change: max-height;
    }

    .lightbox-nav {
        width: 40px;
        height: 40px;
        padding: .75rem;
        position: fixed;
        z-index: var(--z-lightbox-nav);
    }

    .lightbox-prev {
        left: 0;
    }

    .lightbox-next {
        right: 0;
    }

    .lightbox-images-container {
        width: calc(100% - 100px);
        height: 100%;
        max-height: calc(100vh - 200px);
        max-height: calc(100dvh - 200px);
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .lightbox-content {
        padding: 0;
        max-width: 100%;
        max-height: 100%;
        transition: max-width 0.4s cubic-bezier(0.4, 0, 0.2, 1), max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .lightbox-image {
        max-height: calc(100vh - 200px);
        max-height: calc(100dvh - 200px);
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-radius 0.4s ease;
    }

    .lightbox-close {
        position: fixed;
        top: 0.5rem;
        right: 0.5rem;
    }

    .lightbox-fullscreen {
        top: 0.5rem;
        right: calc(0.5rem + 40px + 0.5rem);
    }
}

@media (max-width: 768px) {
    main {
        padding-top: 0.8rem;
    }

    section,
    .navbar {
        padding: 0 2rem;
        margin-top: 1.5rem;
    }

    .navbar {
        display: flex;
        flex-wrap: wrap;
    }

    .nav-right-wrapper {
        display: flex;
        align-items: center;
        gap: var(--gap-md);
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        background: var(--nav-bg);
        padding: 1rem 0;
        margin-top: 1rem;
        border-bottom: 1px solid var(--border);
        z-index: var(--z-navbar);
        visibility: hidden;
        opacity: 0;
        transform: translateY(-10px);
        pointer-events: none;
        transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s 0.3s;
    }

    .nav-links.active {
        visibility: visible;
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
        transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s 0s;
    }

    .nav-links .nav-item {
        text-align: center;
        padding: 0.75rem 0;
        font-size: 1.1rem;
        opacity: 0;
        transform: translateY(-5px);
        transition: none;
    }

    .nav-links.active:not(.language-changing) .nav-item {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.25s ease, transform 0.25s ease;
    }

    .nav-links.active:not(.language-changing) .nav-item:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.active:not(.language-changing) .nav-item:nth-child(2) { transition-delay: 0.2s; }
    .nav-links.active:not(.language-changing) .nav-item:nth-child(3) { transition-delay: 0.3s; }

    .nav-links.language-changing .nav-item {
        transition: none !important;
    }

    main.nav-open {
        margin-top: calc(3 * 3.5rem + 3rem + 1px);
        transition: margin-top 0.3s ease;
    }

    .menu-toggle {
        display: block;
    }

    .effect-container {
        height: 180px;
    }

    .effect-wrapper {
        left: -150%;
        width: 400%;
    }

    .beam-wrapper {
        mask-size: 150%, auto;
    }

    .home-projects-grid,
    .form-row,
    .skills-wrapper {
        grid-template-columns: 1fr;
    }

    .project-more {
        font-size: 0;
        bottom: 1.5rem;
    }

    .submit-button {
        width: fit-content;
    }

    .project-detail-title {
        font-size: var(--text-large);
    }

    .project-gallery {
        grid-template-columns: 1fr;
    }

    .project-stacks-detail {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }

    .project-stack-item {
        padding: .75rem;
    }

    .project-stack-icon {
        width: 32px;
        height: 32px;
    }

    .form-group input,
    .form-group textarea,
    .select-trigger {
        font-size: 16px;
    }

}