/* Each section claims (roughly) the viewport below the navbar, so scrolling
   reads as one deliberate screen at a time rather than an arbitrary flow. */
.hero,
.section {
    min-height: calc(100svh - var(--navbar-height));
    display: flex;
    align-items: center;
}

.section-inner {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.section-alt {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

/* ---- Hero ---- */
/* Flat surface color + a bottom border - a plain seam so scrolling into the
   next section has a clear edge, no gradients or glows involved. */
.hero {
    position: relative;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.hero-inner {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 4rem 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4.5rem;
    align-items: center;
}

/* ---- Scroll cue ---- */
.scroll-cue {
    position: absolute;
    left: 50%;
    bottom: 1.75rem;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    opacity: 1;
    visibility: visible;
    transition: color 0.15s ease, opacity 0.25s ease, visibility 0.25s ease;
}

.scroll-cue.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.scroll-cue:hover {
    color: var(--color-accent);
}

.scroll-cue i {
    font-size: 1.15rem;
    color: var(--color-accent);
    animation: scroll-cue-bounce 1.8s ease-in-out infinite;
}

@keyframes scroll-cue-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(6px);
    }
}

@media (max-height: 640px), (max-width: 760px) {
    .scroll-cue {
        display: none;
    }
}

.hero-lede {
    color: var(--color-text-dim);
    font-size: 1.08rem;
    max-width: 52ch;
    margin-top: 1.25rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2.25rem;
}

/* ---- Hero terminal panel ---- */
/* Sits on --color-bg (the page base) so it still pops against the hero's
   surface-tinted background, same trick .contact-form uses on section-alt. */
.hero-panel {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.hero-panel-bar {
    padding: 0.5rem 0.5rem 0.5rem 1rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem;
}

/* Windows/KDE-style window controls, right-aligned. */
.hero-panel-controls {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
}

.hero-panel-controls i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 22px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
    color: var(--color-text-dim);
}

.hero-panel-controls .mdi-window-close:hover {
    background: var(--color-error);
    color: var(--color-on-accent);
}

.hero-panel-controls .mdi-window-minimize:hover,
.hero-panel-controls .mdi-window-maximize:hover {
    background: var(--color-border);
    color: var(--color-text);
}

.hero-panel-body {
    padding: 1.5rem 1.35rem;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.hero-panel-body p {
    margin: 0;
    line-height: 1.5;
    white-space: nowrap;
    overflow-x: auto;
}

.hero-panel-body .prompt {
    color: var(--color-accent);
    font-weight: 600;
    margin-right: 0.6rem;
}

.hero-panel-body .out {
    color: var(--color-text-dim);
    padding-left: 1.25rem;
}

.hero-panel-body .cursor .blink {
    color: var(--color-accent);
    font-weight: 600;
    animation: hero-cursor-blink 1.1s steps(1) infinite;
}

@keyframes hero-cursor-blink {
    50% {
        opacity: 0;
    }
}

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 760px) {
    .hero-panel-body p {
        white-space: normal;
        overflow-x: visible;
        word-break: break-word;
    }
}

/* ---- About ---- */
.about-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    grid-template-areas:
        "intro bio"
        "intro skills";
    column-gap: 3.5rem;
    row-gap: 2.75rem;
    align-items: start;
    max-width: 1120px;
    margin: 0 auto;
}

.about-intro {
    grid-area: intro;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.about-bio {
    grid-area: bio;
}

.about-skills {
    grid-area: skills;
    display: flex;
    flex-direction: column;
    gap: 1.35rem;
}

.about-photo-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem 1.25rem;
    text-align: center;
}

.about-photo {
    width: 96px;
    height: 96px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--color-border);
}

.about-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.about-role {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--color-text-dim);
    margin-top: 0.3rem;
}

.about-bio p {
    color: var(--color-text-dim);
    margin-top: 1rem;
    max-width: 62ch;
}

.about-bio > h2 {
    margin-top: 0.25rem;
}

.skill-group-title {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.03em;
    color: var(--color-text);
    margin-bottom: 0.65rem;
}

/* ---- Spoken languages: a stack of tabbed cards, each with its own accent
   edge - a deck, not a grid of boxes. */
.lang-deck {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.lang-deck-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.7rem 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s ease;
}

.lang-deck-item:hover {
    border-left-color: var(--color-accent-dark);
}

.lang-deck-code {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--color-accent);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.15rem 0.4rem;
}

.lang-deck-name {
    font-size: 0.9rem;
    font-weight: 500;
    flex: 1;
}

.lang-deck-level {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

@media (max-width: 900px) {
    .about-layout {
        grid-template-columns: 1fr;
        grid-template-areas:
            "intro"
            "bio"
            "skills";
    }

    .about-photo-card {
        max-width: 260px;
        margin: 0 auto;
    }
}

/* ---- Experience timeline ---- */
.timeline {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    border-left: 2px solid var(--color-border);
}

.timeline-item {
    padding-left: 1.75rem;
    position: relative;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -7px;
    top: 0.4rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 2px solid var(--color-surface);
}

.timeline-heading {
    margin-bottom: 0.75rem;
}

.timeline-meta {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-dim);
    margin-top: 0.3rem;
}

.timeline-item ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-item li {
    color: var(--color-text-dim);
    padding-left: 1.1rem;
    position: relative;
}

.timeline-item li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-text-dim);
}

/* ---- Projects ---- */
/* Flexbox, not grid: an incomplete last row (grid keeps it pinned to the
   leading columns) needs to center on its own, which only flex-wrap does. */
.project-grid {
    margin-top: 2.5rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

/* The border/background/shadow live here, on the static (never-rotated) wrapper,
   not on the rotating faces below - at the edge-on midpoint of the flip both
   faces are invisible (backface-visibility: hidden on both simultaneously), so
   a frame drawn only on the faces would flash away to bare page background for
   an instant. Keeping it here means there's always a card-shaped frame present. */
.project-card {
    flex: 1 1 320px;
    max-width: 380px;
    height: 445px;
    perspective: 1800px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.project-card:hover,
.project-card:focus-within,
.project-card.is-flipped {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}

/* The card's real content lives on two absolutely-positioned faces inside
   this rotating layer, so its own box never resizes - only orientation changes. */
.project-card-flip {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
    transform-style: preserve-3d;
    will-change: transform;
}

.project-card:hover .project-card-flip,
.project-card:focus-within .project-card-flip,
.project-card.is-flipped .project-card-flip {
    transform: rotateY(180deg);
}

.project-card-face {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    /* Forces each face onto its own compositor layer so the browser doesn't
       have to repaint them (and risk a blank frame) mid-rotation. */
    transform: translateZ(0.01px);
}

.project-card-face-front {
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 0.9rem;
    padding: 2.25rem 1.75rem 3.25rem;
}

.project-card-face-front h3 {
    font-size: 1.3rem;
}

.project-card-face-front .tag-list {
    justify-content: center;
}

.project-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.25rem;
    height: 3.25rem;
    border-radius: var(--radius-md);
    background: var(--color-accent-soft);
}

.project-card-icon i {
    font-size: 1.6rem;
    color: var(--color-accent);
}

/* Pinned to the bottom independently of the centered content above it, so it
   doesn't shift as tag-list length varies card to card. */
.project-card-hint {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 1.15rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    opacity: 0.7;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.project-card:hover .project-card-hint,
.project-card:focus-within .project-card-hint,
.project-card.is-flipped .project-card-hint {
    opacity: 0;
    transform: translateY(4px);
}

.project-card-hint i {
    font-size: 0.95rem;
    color: var(--color-accent);
}

.project-card-face-back {
    transform: rotateY(180deg) translateZ(0.01px);
    padding: 1.5rem 1.75rem;
    gap: 0.9rem;
    overflow-y: auto;
}

.project-card-head {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
}

.project-card-head i {
    font-size: 1.7rem;
    color: var(--color-accent);
    margin-top: 0.1rem;
}

.project-tagline {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    margin-top: 0.15rem;
}

.project-description {
    color: var(--color-text-dim);
    font-size: 0.92rem;
    line-height: 1.45;
}

.project-links {
    margin-top: auto;
    padding-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1rem;
    border-top: 1px solid var(--color-border);
}

.repo-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

.repo-link:hover {
    color: var(--color-accent);
}

/* ---- Contact ---- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
}

.contact-direct {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: 1.75rem;
}

.contact-direct a {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.92rem;
    color: var(--color-text-dim);
}

.contact-direct a:hover {
    color: var(--color-accent);
}

.contact-form {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.75rem;
}

@media (max-width: 760px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}