/* css/style.css */
:root {
    --main: #352F44;
    --secondary: #5C5470;
    --tertiary: #B9B4C7;
    --complementary: #FAF0E6;

    --bg: var(--main);
    --surface: var(--secondary);

    --text: var(--complementary);
    --text-muted: rgba(250, 240, 230, 0.70);
    --border: rgba(250, 240, 230, 0.16);

    --radius: 12px;
    --max-width: 980px;

    --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
    --duration: 520ms;

    /* Layout tokens */
    --container-pad-x: 24px;
    --container-pad-y: 28px;

    --gap-sm: 10px;
    --gap-md: 14px;
    --gap-lg: 22px;

    --btn-size: 40px;

    /* Hover tokens */
    --hover-lift: -4px;
    --hover-scale: 1.015;
    --hover-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);

    /* Overlay tokens */
    --overlay-pad-y: 10px;
    --overlay-pad-x: 14px;
    --overlay-bottom-alpha: 0.8;

    /* UI transitions */
    --ui-trans: 260ms var(--ease);
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
}

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

/* Panels */
.panel {
    position: fixed;
    inset: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transition: transform var(--duration) var(--ease);
}

.panel-home {
    transform: translateX(0);
}

.panel-project {
    background: var(--surface);
    transform: translateX(-100%);
    border-right: 1px solid var(--border);
}

body.is-project-open .panel-home {
    transform: translateX(100%);
}

body.is-project-open .panel-project {
    transform: translateX(0);
}

@media (prefers-reduced-motion: reduce) {
    .panel {
        transition: none;
    }
}

/* Topbar */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topbar-left .name {
    font-size: 26px;
    font-weight: 800;
    line-height: 1.1;
}

.topbar-left .role {
    font-size: 12px;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-link {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(250, 240, 230, 0.10);
    color: var(--complementary);
    transition: background var(--ui-trans), transform var(--ui-trans), color var(--ui-trans);
}

.icon-link .icon {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.icon-link:hover {
    background: rgba(250, 240, 230, 0.16);
    transform: translateY(-1px);
}

.resume-btn {
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: rgba(250, 240, 230, 0.14);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.resume-btn .dl {
    margin-left: 6px;
}

/* Sections */
.section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--container-pad-y) var(--container-pad-x);
}

.section-title {
    margin: 0 0 16px 0;
    font-size: 18px;
    font-weight: 500;
    color: var(--tertiary);
}

/* Intro */
.intro {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 28px;
    align-items: center;
    padding-top: 42px;
    padding-bottom: 42px;
}

.avatar {
    width: 210px;
    height: 210px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(250, 240, 230, 0.06);
    border: 1px solid var(--border);
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.intro-text p {
    font-size: 1.2em;
    margin: 0;
    line-height: 1.6;
    color: var(--text-muted);
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-lg);
}

.project-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius);
    overflow: hidden;
    background: rgba(250, 240, 230, 0.06);
    border: 1px solid var(--border);
    height: 100%;
}

/* Clickable card hover */
.project-card--clickable {
    position: relative;
    cursor: pointer;
    transition: transform var(--ui-trans), box-shadow var(--ui-trans), background var(--ui-trans);
}

.project-card--clickable:hover {
    transform: translateY(var(--hover-lift)) scale(var(--hover-scale));
    box-shadow: var(--hover-shadow), 0 0 0 1px rgba(250, 240, 230, 0.12);
    background: rgba(250, 240, 230, 0.08);
}

.project-card--clickable:active {
    transform: translateY(calc(var(--hover-lift) + 2px)) scale(1.01);
}

/* Media */
.media {
    position: relative;
    aspect-ratio: 16 / 9;
    background: rgba(0, 0, 0, 0.20);
    overflow: hidden;
}

/* Bottom overlay "1 week Unity" */
.media-overlay {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;

    padding: var(--overlay-pad-y) var(--overlay-pad-x);
    display: flex;
    gap: var(--gap-md);
    align-items: center;

    background: linear-gradient(
        to top,
        rgba(0, 0, 0, var(--overlay-bottom-alpha)),
        rgba(0, 0, 0, 0)
    );

    font-size: 12px;
    color: var(--complementary);
    pointer-events: none;
}

.media-overlay span {
    opacity: 0.9;
    white-space: nowrap;
}

.media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.card-bottom {
    display: block;
    flex: 1;
    align-items: center;
    justify-content: flex-start;
    gap: var(--gap-md);
    padding: 16px;
    background: rgba(0, 0, 0, 0.12);
}

.card-text {
    width: 100%;
}

.card-title {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 8px;
}

.card-desc {
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-muted);
}

/* Educations */
.edu-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-lg);
}

.edu-card {
    padding: 16px;
    border-radius: 10px;
    background: rgba(250, 240, 230, 0.06);
    border: 1px solid var(--border);
}

.edu-title {
    font-weight: 800;
    margin-bottom: 8px;
}

.edu-title .year {
    font-weight: 600;
    color: var(--tertiary);
    opacity: 0.85;
    margin-left: 6px;
}

.edu-desc {
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-muted);
}

/* Technical experience */
.chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gap-sm);
}

.chip {
    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(250, 240, 230, 0.10);
    font-size: 12px;
}

/* Bottom about */
.about {
    margin-top: 32px;
    background: rgba(250, 240, 230, 0.06);
    border-top: 1px solid var(--border);
}

.about .wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--container-pad-y) var(--container-pad-x);
}

.about h3 {
    margin: 0 0 12px 0;
    font-size: 20px;
}

.about p {
    margin: 0 0 12px 0;
    line-height: 1.6;
    color: var(--text-muted);
}

/* Project details panel */
.project-topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.project-topbar .back {
    background: rgba(250, 240, 230, 0.10);
    border: 1px solid var(--border);
    color: var(--text);

    width: var(--btn-size);
    height: var(--btn-size);
    border-radius: 10px;

    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
}

.project-topbar .back:hover {
    background: rgba(250, 240, 230, 0.16);
}

.project-head .project-name {
    font-weight: 900;
}

.project-head .project-sub {
    font-size: 12px;
    color: var(--text-muted);
}

.spacer {
    flex: 1;
}

.project-wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px;
}

.project-media {
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.25);
}

.project-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-top: 18px;
}

.project-panel {
    border-radius: 12px;
    background: rgba(250, 240, 230, 0.08);
    border: 1px solid var(--border);
    padding: 16px;
}

.project-panel-title {
    margin: 0 0 12px 0;
    font-size: 14px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tertiary);
}

.project-panel-content {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 14px;
}

.project-panel-content p {
    margin: 0 0 12px 0;
}

.project-panel-content p:last-child {
    margin-bottom: 0;
}

.project-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
}

.info-item {
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.10);
    border: 1px solid var(--border);
    min-height: 56px;

    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}

.info-label {
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tertiary);
    opacity: 0.9;
}

.info-value {
    font-size: 13px;
    color: var(--complementary);
    line-height: 1.35;
    opacity: 0.92;
    overflow-wrap: anywhere;
}

.project-content {
    margin-top: 22px;
    padding: 18px;
    border-radius: 12px;
    background: rgba(250, 240, 230, 0.06);
    border: 1px solid var(--border);
}

.project-content h3 {
    margin: 0 0 10px 0;
    font-size: 16px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--tertiary);
}

.project-content p {
    margin: 0 0 12px 0;
    color: var(--text-muted);
    line-height: 1.7;
    font-size: 14px;
}

.project-content ul {
    margin: 0 0 14px 0;
    padding-left: 18px;
    color: var(--text-muted);
    line-height: 1.7;
    font-size: 14px;
}

.project-content li {
    margin-bottom: 6px;
}

.project-content a {
    color: var(--complementary);
    text-decoration: none;
    position: relative;
    font-weight: 500;
    transition: color 0.2s ease;
}

.project-content a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 1px;
    background: currentColor;
    opacity: 0.4;
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: scaleX(0.75);
    transform-origin: center;
}

.project-content a:hover {
    color: var(--tertiary);
}

.project-content a:hover::after {
    opacity: 0.8;
    transform: scaleX(1);
}

.project-content .split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.project-content .callout {
    margin-bottom: 12px;
    padding: 14px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.10);
    border: 1px solid var(--border);
}

@media (hover: none) {
    .project-card--clickable:hover {
        transform: none;
        box-shadow: none;
        background: rgba(250, 240, 230, 0.06);
    }

    .project-card--clickable:hover .media img {
        transform: none;
    }
}

/* Responsive */
@media (max-width: 860px) {
    .topbar-right {
        gap: 8px;
    }

    .resume-btn {
        padding: 8px 10px;
        font-size: 11px;
        white-space: nowrap;
    }

    .resume-btn .dl {
        display: none;
    }

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

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

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

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

    .avatar {
        margin: 0 auto;
    }

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

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