:root {
    color-scheme: dark;
    --bg: #07100f;
    --bg-elevated: #0d1917;
    --surface: #11211e;
    --surface-strong: #172a27;
    --line: #29403b;
    --line-soft: rgba(164, 196, 187, 0.16);
    --text: #f2f7f5;
    --muted: #a4b8b2;
    --muted-strong: #c4d2ce;
    --accent: #a9ff68;
    --accent-strong: #7ee43f;
    --accent-ink: #102108;
    --cyan: #65e5db;
    --warning: #ffd369;
    --danger: #ff8f91;
    --success: #74e6a5;
    --shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --container: 1240px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
    min-width: 320px;
    margin: 0;
    flex-direction: column;
    color: var(--text);
    background:
        radial-gradient(circle at 85% -10%, rgba(101, 229, 219, 0.1), transparent 34rem),
        radial-gradient(circle at 12% 32%, rgba(169, 255, 104, 0.07), transparent 30rem),
        var(--bg);
    font-size: 1rem;
    line-height: 1.6;
}

main {
    flex: 1 0 auto;
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image: linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
    background-size: 44px 44px;
    content: "";
    mask-image: linear-gradient(to bottom, black, transparent 85%);
}

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

button,
input,
select,
textarea {
    font: inherit;
}

button,
select {
    cursor: pointer;
}

h1,
h2,
h3,
p,
dl,
dd {
    margin-top: 0;
}

h1,
h2,
h3 {
    line-height: 1.08;
    letter-spacing: -0.035em;
}

h1 {
    margin-bottom: 1.25rem;
    font-size: clamp(2.6rem, 7vw, 5.9rem);
    font-weight: 760;
}

h2 {
    margin-bottom: 0;
    font-size: clamp(1.65rem, 3vw, 2.4rem);
}

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

.skip-link {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 100;
    padding: 0.7rem 1rem;
    color: var(--accent-ink);
    background: var(--accent);
    border-radius: var(--radius-sm);
    transform: translateY(-180%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid var(--line-soft);
    background: rgba(7, 16, 15, 0.86);
    backdrop-filter: blur(18px);
}

.header-inner,
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.header-inner {
    min-height: 76px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    font-weight: 640;
    letter-spacing: -0.02em;
}

.brand strong {
    color: var(--accent);
}

.brand-mark {
    display: grid;
    width: 2.5rem;
    height: 2.5rem;
    place-items: center;
    color: var(--accent-ink);
    background: var(--accent);
    border-radius: 50%;
    font-family: ui-monospace, "Cascadia Code", monospace;
    font-size: 0.78rem;
    font-weight: 800;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.nav-form {
    margin: 0;
}

.main-nav > a:not(.button) {
    padding: 0.55rem 0.85rem;
    color: var(--muted);
    border-radius: 999px;
}

.main-nav > a:not(.button):hover,
.main-nav > a:not(.button).is-active {
    color: var(--text);
    background: var(--surface);
}

.button {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.1rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 700;
    line-height: 1;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid rgba(169, 255, 104, 0.35);
    outline-offset: 3px;
}

.button--small {
    min-height: 40px;
    padding: 0.62rem 0.95rem;
    font-size: 0.9rem;
}

.button--primary {
    color: var(--accent-ink);
    background: var(--accent);
}

.button--primary:hover {
    background: var(--accent-strong);
}

.button--ghost {
    color: var(--text);
    border-color: var(--line);
    background: transparent;
}

.button--ghost:hover {
    border-color: var(--muted);
    background: var(--surface);
}

.button--danger {
    color: var(--danger);
    border-color: rgba(255, 143, 145, 0.35);
    background: rgba(255, 143, 145, 0.08);
}

.button--danger:hover {
    background: rgba(255, 143, 145, 0.15);
}

.button--full {
    width: 100%;
}

.catalog-intro {
    padding: clamp(4.5rem, 9vw, 8.5rem) 0 clamp(3.5rem, 7vw, 6rem);
    border-bottom: 1px solid var(--line-soft);
}

.intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.65fr);
    align-items: end;
    gap: clamp(2rem, 8vw, 8rem);
}

.eyebrow,
.panel-kicker,
.category-label,
.section-number {
    margin-bottom: 0.85rem;
    color: var(--accent);
    font-family: ui-monospace, "Cascadia Code", monospace;
    font-size: 0.78rem;
    font-weight: 760;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.eyebrow span {
    display: inline-block;
    margin-right: 0.35rem;
    font-size: 0.65rem;
}

.intro-copy {
    max-width: 46rem;
    margin-bottom: 0;
    color: var(--muted-strong);
    font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.catalog-summary {
    margin-bottom: 0;
    border-top: 1px solid var(--line);
}

.catalog-summary div {
    padding: 1rem 0;
    border-bottom: 1px solid var(--line);
}

.catalog-summary dt {
    margin-bottom: 0.2rem;
    color: var(--text);
    font-weight: 700;
}

.catalog-summary dd {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.catalog-section {
    padding: clamp(2.5rem, 6vw, 5rem) 0 7rem;
}

.catalog-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 4rem);
}

.filters-panel {
    position: sticky;
    top: 105px;
    padding: 1.3rem;
    border: 1px solid var(--line-soft);
    background: rgba(13, 25, 23, 0.78);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.panel-heading,
.results-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
}

.panel-heading {
    margin-bottom: 1.4rem;
}

.panel-heading h2 {
    font-size: 1.5rem;
}

.panel-kicker {
    margin-bottom: 0.35rem;
    color: var(--muted);
    font-size: 0.68rem;
}

.text-link,
.back-link {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: transparent;
    text-underline-offset: 0.22rem;
}

.text-link:hover,
.back-link:hover {
    text-decoration-color: currentColor;
}

.text-link {
    font-size: 0.8rem;
}

.filters-form,
.field {
    display: grid;
    gap: 0.45rem;
}

.filters-form {
    gap: 1rem;
}

.field > span:first-child {
    color: var(--muted-strong);
    font-size: 0.88rem;
    font-weight: 680;
}

.field em {
    color: var(--accent);
    font-style: normal;
}

input,
select,
textarea {
    width: 100%;
    color: var(--text);
    border: 1px solid var(--line);
    background: #0b1715;
    border-radius: var(--radius-sm);
}

input,
select {
    min-height: 48px;
    padding: 0 0.9rem;
}

textarea {
    min-height: 8rem;
    padding: 0.85rem 0.9rem;
    resize: vertical;
}

input::placeholder,
textarea::placeholder {
    color: #6f857f;
}

input:hover,
select:hover,
textarea:hover {
    border-color: #456059;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
}

.input-with-icon {
    position: relative;
    display: block;
}

.input-with-icon svg {
    position: absolute;
    top: 50%;
    left: 0.85rem;
    color: var(--muted);
    transform: translateY(-50%);
    pointer-events: none;
}

.input-with-icon input {
    padding-left: 2.65rem;
}

.results-heading {
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--line);
}

.results-heading h2 span {
    display: inline-grid;
    min-width: 2.25rem;
    height: 2.25rem;
    margin-left: 0.35rem;
    place-items: center;
    vertical-align: 0.25rem;
    color: var(--accent-ink);
    background: var(--accent);
    border-radius: 50%;
    font-family: ui-monospace, monospace;
    font-size: 0.8rem;
    letter-spacing: 0;
}

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

.project-card {
    display: flex;
    min-height: 365px;
    flex-direction: column;
    padding: 1.25rem;
    overflow: hidden;
    border: 1px solid var(--line-soft);
    background: linear-gradient(145deg, rgba(23, 42, 39, 0.86), rgba(13, 25, 23, 0.92));
    border-radius: var(--radius-lg);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.16);
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.project-card:hover {
    border-color: rgba(169, 255, 104, 0.45);
    box-shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
    transform: translateY(-4px);
}

.card-topline,
.card-footer,
.detail-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.project-avatar {
    display: grid;
    width: 3rem;
    height: 3rem;
    flex: 0 0 auto;
    place-items: center;
    color: var(--accent);
    border: 1px solid rgba(169, 255, 104, 0.24);
    background: rgba(169, 255, 104, 0.07);
    border-radius: 50%;
    font-family: ui-monospace, "Cascadia Code", monospace;
    font-size: 0.8rem;
    font-weight: 800;
}

.status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--muted-strong);
    font-size: 0.76rem;
    white-space: nowrap;
}

.status::before {
    width: 0.48rem;
    height: 0.48rem;
    background: var(--muted);
    border-radius: 50%;
    content: "";
}

.status--idea::before { background: var(--warning); }
.status--progress::before { background: var(--cyan); box-shadow: 0 0 0 5px rgba(101, 229, 219, 0.08); }
.status--done::before { background: var(--success); }

.card-body {
    flex: 1;
    padding: 2rem 0 1.25rem;
}

.card-body h3 {
    margin-bottom: 0.85rem;
    font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.card-body h3 a::after {
    display: inline-block;
    margin-left: 0.45rem;
    color: var(--accent);
    content: "↗";
    font-size: 0.9em;
    transition: transform 160ms ease;
}

.project-card:hover .card-body h3 a::after {
    transform: translate(3px, -3px);
}

.card-body > p:last-child {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 0.94rem;
}

.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.tech-list span {
    padding: 0.28rem 0.58rem;
    color: var(--muted-strong);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: ui-monospace, "Cascadia Code", monospace;
    font-size: 0.67rem;
}

.card-footer {
    margin-top: 1.25rem;
    padding-top: 1rem;
    color: var(--muted);
    border-top: 1px solid var(--line-soft);
    font-size: 0.72rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.58rem;
    border-radius: 999px;
    font-family: ui-monospace, "Cascadia Code", monospace;
    font-size: 0.68rem;
    font-weight: 760;
}

.badge--starter { color: var(--success); background: rgba(116, 230, 165, 0.11); }
.badge--middle { color: var(--warning); background: rgba(255, 211, 105, 0.11); }
.badge--advanced { color: var(--danger); background: rgba(255, 143, 145, 0.11); }

.notice,
.empty-state {
    border: 1px solid var(--line);
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
}

.notice {
    margin-bottom: 1.5rem;
    padding: 1rem 1.2rem;
}

.notice p:last-child {
    margin-bottom: 0;
}

.notice--error {
    color: #ffd3d4;
    border-color: rgba(255, 143, 145, 0.35);
    background: rgba(255, 143, 145, 0.08);
}

.notice--success {
    color: #c9ffdf;
    border-color: rgba(116, 230, 165, 0.35);
    background: rgba(116, 230, 165, 0.08);
}

.empty-state {
    display: grid;
    min-height: 22rem;
    padding: 3rem 1.5rem;
    place-items: center;
    align-content: center;
    text-align: center;
}

.empty-state--compact {
    min-height: 28rem;
    margin-top: 2rem;
}

.empty-state h1,
.empty-state h3 {
    margin-bottom: 0.8rem;
}

.empty-state p {
    max-width: 34rem;
    color: var(--muted);
}

.empty-icon {
    display: grid;
    min-width: 4rem;
    height: 4rem;
    margin-bottom: 1.5rem;
    padding-inline: 0.8rem;
    place-items: center;
    color: var(--accent);
    border: 1px solid var(--line);
    border-radius: 50%;
    font-family: ui-monospace, monospace;
    font-weight: 800;
}

.detail-section,
.form-section {
    padding: clamp(3rem, 7vw, 6rem) 0 7rem;
}

.detail-container {
    max-width: 1120px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
}

.project-detail {
    padding: clamp(1.4rem, 4vw, 3rem);
    border: 1px solid var(--line-soft);
    background: rgba(13, 25, 23, 0.78);
    border-radius: 32px;
    box-shadow: var(--shadow);
}

.detail-header {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1.5rem;
    padding-bottom: clamp(2rem, 5vw, 4rem);
    border-bottom: 1px solid var(--line);
}

.project-avatar--large {
    width: clamp(4.5rem, 8vw, 6.5rem);
    height: clamp(4.5rem, 8vw, 6.5rem);
    font-size: 1.2rem;
}

.detail-meta-row {
    justify-content: flex-start;
    margin-bottom: 1.2rem;
}

.detail-meta-row .category-label {
    margin-bottom: 0;
}

.detail-heading h1 {
    max-width: 50rem;
    margin-bottom: 1rem;
    font-size: clamp(2.2rem, 5vw, 4.6rem);
}

.detail-lead {
    max-width: 48rem;
    margin-bottom: 0;
    color: var(--muted-strong);
    font-size: 1.12rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: clamp(2rem, 6vw, 5rem);
    padding-top: clamp(2rem, 5vw, 4rem);
}

.detail-main {
    display: grid;
    gap: 3.5rem;
}

.detail-main h2 {
    margin-bottom: 1.35rem;
}

.detail-main p:not(.section-number) {
    color: var(--muted-strong);
}

.section-number {
    margin-bottom: 0.4rem;
}

.tech-list--large span {
    padding: 0.5rem 0.75rem;
    font-size: 0.78rem;
}

.detail-sidebar {
    align-self: start;
    padding: 1.25rem;
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: var(--radius-md);
}

.fact-list {
    margin-bottom: 1.25rem;
}

.fact-list div {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line-soft);
}

.fact-list div:first-child {
    padding-top: 0;
}

.fact-list dt {
    color: var(--muted);
    font-size: 0.76rem;
}

.fact-list dd {
    margin-bottom: 0;
    font-weight: 670;
}

.delete-form {
    margin-top: 0.75rem;
}

.form-layout {
    display: grid;
    grid-template-columns: minmax(260px, 0.65fr) minmax(0, 1.35fr);
    align-items: start;
    gap: clamp(2rem, 7vw, 7rem);
}

.form-intro {
    position: sticky;
    top: 115px;
}

.form-intro h1 {
    font-size: clamp(2.8rem, 6vw, 5rem);
}

.form-intro > p:not(.eyebrow) {
    max-width: 30rem;
    color: var(--muted-strong);
    font-size: 1.08rem;
}

.form-steps {
    display: grid;
    gap: 0;
    margin: 2.5rem 0 0;
    padding: 0;
    list-style: none;
}

.form-steps li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.9rem 0;
    color: var(--muted);
    border-bottom: 1px solid var(--line);
}

.form-steps span,
.form-card legend span {
    color: var(--accent);
    font-family: ui-monospace, monospace;
    font-size: 0.72rem;
}

.form-card {
    padding: clamp(1.25rem, 4vw, 2.4rem);
    border: 1px solid var(--line-soft);
    background: rgba(13, 25, 23, 0.86);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.auth-container {
    width: min(calc(100% - 2rem), 560px);
    margin-inline: auto;
}

.auth-heading {
    margin-bottom: 2rem;
}

.auth-heading h1 {
    font-size: clamp(2.25rem, 7vw, 4.5rem);
}

.form-card form,
.form-card fieldset {
    display: grid;
    gap: 1.25rem;
}

.form-card form {
    gap: 2.5rem;
}

.form-card fieldset {
    min-width: 0;
    margin: 0;
    padding: 0 0 2.5rem;
    border: 0;
    border-bottom: 1px solid var(--line);
}

.form-card legend {
    margin-bottom: 1.4rem;
    padding: 0;
    font-size: 1.25rem;
    font-weight: 760;
}

.form-card legend span {
    margin-right: 0.6rem;
}

.field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
}

.field small,
.fieldset-help {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 0.76rem;
}

.field-error {
    color: var(--danger) !important;
}

[aria-invalid="true"] {
    border-color: var(--danger);
}

.checkbox-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.checkbox-chip {
    position: relative;
}

.checkbox-chip input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.checkbox-chip span {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    padding: 0.55rem 0.85rem;
    color: var(--muted-strong);
    border: 1px solid var(--line);
    border-radius: 999px;
    cursor: pointer;
    transition: border-color 150ms ease, background 150ms ease, color 150ms ease;
}

.checkbox-chip input:checked + span {
    color: var(--accent-ink);
    border-color: var(--accent);
    background: var(--accent);
}

.checkbox-chip input:focus-visible + span {
    outline: 3px solid rgba(169, 255, 104, 0.35);
    outline-offset: 3px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.site-footer {
    flex-shrink: 0;
    margin-top: auto;
    padding: 2rem 0;
    color: var(--muted);
    border-top: 1px solid var(--line-soft);
    font-size: 0.82rem;
}

.footer-inner p {
    margin-bottom: 0;
}

.footer-inner strong {
    color: var(--text);
}

.reveal {
    opacity: 0;
    transform: translateY(18px);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 480ms ease var(--delay, 0ms), transform 480ms ease var(--delay, 0ms);
}

@media (max-width: 980px) {
    .intro-grid,
    .form-layout {
        grid-template-columns: 1fr;
    }

    .catalog-layout {
        grid-template-columns: 1fr;
    }

    .filters-panel,
    .form-intro {
        position: static;
    }

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

    .filters-form .button {
        align-self: end;
    }

    .catalog-summary {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.5rem;
    }

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

    .detail-sidebar {
        width: min(100%, 420px);
    }

    .form-steps {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 1rem;
    }
}

@media (max-width: 720px) {
    .container {
        width: min(calc(100% - 1.25rem), var(--container));
    }

    .header-inner {
        min-height: 68px;
    }

    .brand > span:last-child {
        display: none;
    }

    .main-nav > a:not(.button) {
        padding-inline: 0.6rem;
    }

    .project-grid,
    .filters-form,
    .field-grid,
    .catalog-summary,
    .form-steps {
        grid-template-columns: 1fr;
    }

    .catalog-summary {
        gap: 0;
    }

    .results-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .project-card {
        min-height: 340px;
    }

    .card-footer {
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .detail-header {
        grid-template-columns: 1fr;
    }

    .form-steps {
        gap: 0;
    }

    .form-actions {
        align-items: stretch;
        flex-direction: column-reverse;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.35rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}