/* ============================================================
   Stomatopod dashboard — "deep water iridescence".
   Named for the mantis shrimp: abyssal blue-green dark, with
   iridescent teal → violet → magenta accents where the light
   catches. Single stylesheet, served at /app.css, no build.
   Modern CSS: nesting, color-mix(), custom properties.
   ============================================================ */

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

:root {
    /* Abyss */
    --bg: #04080b;
    --bg-2: #071119;
    --surface: #0b141c;
    --surface-2: #101c26;
    --surface-3: #15242f;
    --border: rgba(148, 222, 233, 0.08);
    --border-2: rgba(148, 222, 233, 0.14);
    --border-3: rgba(148, 222, 233, 0.22);

    /* Ink */
    --text: #e9f4f4;
    --text-2: #bdd2d6;
    --muted: #7e95a0;
    --muted-2: #5d7280;

    /* Carapace */
    --teal: #2dd4bf;
    --teal-hi: #5eead4;
    --teal-deep: #0d9488;
    --cyan: #22d3ee;
    --violet: #818cf8;
    --magenta: #e879f9;
    --green: #34d399;
    --red: #fb7185;
    --gold: #fbbf24;
    --teal-soft: rgba(45, 212, 191, 0.15);

    /* The shrimp's whole trick. */
    --iri: linear-gradient(
        110deg,
        var(--teal-hi) 0%,
        var(--cyan) 32%,
        var(--violet) 68%,
        var(--magenta) 100%
    );
    --grad-btn: linear-gradient(
        180deg,
        #46e3cd 0%,
        var(--teal) 45%,
        #14b8a6 100%
    );

    --radius-sm: 9px;
    --radius: 14px;
    --radius-lg: 20px;
    --space-1: 8px;
    --space-2: 13px; /* Fibonacci */
    --space-3: 1.3125rem; /* 21px — Fibonacci */
    --space-4: 1.625rem; /* 26px ≈ 16 × φ */

    --shadow-sm: 0 1px 0 rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow:
        0 1px 0 rgba(0, 0, 0, 0.35), 0 8px 18px rgba(0, 0, 0, 0.4),
        0 22px 44px rgba(0, 0, 0, 0.35);
    --glow-teal:
        0 4px 12px rgba(45, 212, 191, 0.28),
        0 14px 32px rgba(45, 212, 191, 0.16);
    --inner-hi: inset 0 1px 0 rgba(255, 255, 255, 0.05);

    --font-ui:
        "InterVariable", "Inter", ui-sans-serif, system-ui, -apple-system,
        BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    --font-display: "Space Grotesk", var(--font-ui);
    --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scrollbar-color: var(--surface-3) transparent;
}

body {
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 14px;
    line-height: 1.5;
    font-feature-settings: "ss01", "cv02", "cv11", "kern";
    background-color: var(--bg);
    background-image:
        radial-gradient(
            1000px 560px at 12% -160px,
            rgba(45, 212, 191, 0.1),
            transparent 65%
        ),
        radial-gradient(
            800px 520px at 95% -80px,
            rgba(129, 140, 248, 0.08),
            transparent 60%
        ),
        radial-gradient(
            700px 500px at 80% 115%,
            rgba(232, 121, 249, 0.05),
            transparent 60%
        );
    background-attachment: fixed;
    min-height: 100vh;
}

/* Film grain over everything. */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 220 220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.55 0'/></filter><rect width='220' height='220' filter='url(%23n)'/></svg>");
    background-size: 220px 220px;
    opacity: 0.05;
    mix-blend-mode: overlay;
}

a {
    color: var(--teal);
    text-decoration: none;
    transition: color 160ms;

    &:hover {
        color: var(--teal-hi);
    }
}

::selection {
    background: rgba(45, 212, 191, 0.28);
    color: #fff;
}

:focus-visible {
    outline: 2px solid var(--teal);
    outline-offset: 2px;
    border-radius: 4px;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--surface-3);
    border-radius: 999px;
    border: 2px solid var(--bg);
}

code {
    font-family: var(--font-mono);
    font-size: 0.92em;
    background: rgba(148, 222, 233, 0.06);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 1px 5px;
}

h1,
h2,
.page-title {
    font-family: var(--font-display);
}

/* ===== View transitions (cross-document, MPA-native) ===== */
@view-transition {
    navigation: auto;
}

::view-transition-group(*) {
    animation-duration: 240ms;
    animation-timing-function: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* Sidebar stays pinned; content rises in. Named heads/tabs morph in place. */
.side {
    view-transition-name: side;
}

main.main {
    view-transition-name: main;
}

.page-head {
    view-transition-name: page-head;
}

.tabs {
    view-transition-name: tabs;
}

.hero {
    view-transition-name: hero;
}

::view-transition-old(main) {
    animation: vt-fade-out 150ms ease both;
}

::view-transition-new(main) {
    animation: vt-rise-in 280ms cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes vt-fade-out {
    to {
        opacity: 0;
    }
}

@keyframes vt-rise-in {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
}

/* ===== App shell: sidebar + main ===== */
body.app {
    display: grid;
    grid-template-columns: 232px minmax(0, 1fr);
    min-height: 100vh;
}

.side {
    position: sticky;
    top: 0;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    padding: 1.375rem 0.875rem 1rem;
    background: color-mix(in srgb, var(--bg-2) 65%, transparent);
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
    border-right: 1px solid var(--border);
    z-index: 30;

    /* Iridescent hairline along the right edge. */
    &::after {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        right: -1px;
        width: 1px;
        background: linear-gradient(
            180deg,
            var(--teal-hi),
            var(--cyan) 30%,
            var(--violet) 65%,
            var(--magenta) 100%
        );
        opacity: 0.25;
        -webkit-mask: linear-gradient(
            180deg,
            transparent,
            #000 12%,
            #000 88%,
            transparent
        );
        mask: linear-gradient(
            180deg,
            transparent,
            #000 12%,
            #000 88%,
            transparent
        );
    }

    & .logo {
        padding: 0 0.625rem;
    }
}

.side-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 1.75rem;

    & a {
        position: relative;
        padding: 8px 12px;
        border-radius: 10px;
        color: var(--muted);
        font-size: 13.5px;
        font-weight: 500;
        transition:
            color 160ms,
            background 160ms;

        &:hover {
            color: var(--text);
            background: rgba(186, 240, 245, 0.04);
        }

        &[aria-current="page"] {
            color: var(--text);
            background: rgba(45, 212, 191, 0.08);

            /* Iridescent indicator bar. */
            &::before {
                content: "";
                position: absolute;
                left: 0;
                top: 8px;
                bottom: 8px;
                width: 3px;
                border-radius: 2px;
                background: var(--iri);
                box-shadow: 0 0 8px rgba(45, 212, 191, 0.5);
            }
        }
    }
}

.side-label {
    font-size: 10.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted-2);
    margin: 1rem 12px 4px;

    &:first-child {
        margin-top: 0;
    }
}

.side-foot {
    margin-top: auto;
    display: grid;

    & .btn {
        justify-content: center;
    }
}

@media (max-width: 880px) {
    body.app {
        grid-template-columns: 1fr;
    }

    .side {
        height: auto;
        flex-direction: row;
        align-items: center;
        gap: 1rem;
        padding: 10px var(--space-3);
        border-right: 0;
        border-bottom: 1px solid var(--border);

        &::after {
            top: auto;
            bottom: -1px;
            left: 0;
            right: 0;
            width: auto;
            height: 1px;
            background: var(--iri);
            -webkit-mask: linear-gradient(
                90deg,
                transparent,
                #000 15%,
                #000 85%,
                transparent
            );
            mask: linear-gradient(
                90deg,
                transparent,
                #000 15%,
                #000 85%,
                transparent
            );
        }
    }

    .side-nav {
        flex-direction: row;
        margin-top: 0;
        flex: 1;

        & a[aria-current="page"]::before {
            top: auto;
            left: 10px;
            right: 10px;
            bottom: 2px;
            width: auto;
            height: 2px;
        }
    }

    .side-label {
        display: none;
    }

    .side-foot {
        margin-top: 0;
    }
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    letter-spacing: -0.01em;
    color: var(--text);
}

/* Iridescent diamond — the eye of the shrimp. */
.logo-mark {
    position: relative;
    display: inline-block;
    width: 13px;
    height: 13px;

    &::before,
    &::after {
        content: "";
        position: absolute;
        inset: 0;
        transform: rotate(45deg);
        border-radius: 3.5px;
    }

    &::before {
        background: conic-gradient(
            from 210deg,
            var(--teal-hi),
            var(--cyan),
            var(--violet),
            var(--magenta),
            var(--teal-hi)
        );
        box-shadow:
            0 2px 8px rgba(45, 212, 191, 0.55),
            0 0 18px rgba(129, 140, 248, 0.35);
    }

    &::after {
        background: linear-gradient(
            135deg,
            rgba(255, 255, 255, 0.6),
            transparent 55%
        );
        mix-blend-mode: overlay;
    }
}

/* ===== Layout ===== */
.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.125rem var(--space-4) 4rem;
}

.page-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.page-title {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.page-sub {
    color: var(--muted);
    font-size: 12.5px;
    margin-top: 2px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 720px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

.list {
    display: grid;
    gap: 0.75rem;
}

/* Spacing utilities — the only margin knobs templates should reach for. */
.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.muted {
    color: var(--muted);
}

/* ===== Cards ===== */
.card {
    position: relative;
    background:
        linear-gradient(180deg, rgba(186, 240, 245, 0.03) 0%, transparent 36%),
        var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    box-shadow: var(--shadow-sm), var(--inner-hi);
    transition:
        border-color 220ms,
        box-shadow 220ms,
        transform 220ms cubic-bezier(0.2, 0.7, 0.2, 1);

    /* Faint iridescent ring, brightening toward the top edge. */
    &::before {
        content: "";
        position: absolute;
        inset: -1px;
        border-radius: inherit;
        pointer-events: none;
        padding: 1px;
        background: linear-gradient(
            180deg,
            rgba(94, 234, 212, 0.28),
            rgba(129, 140, 248, 0.1) 40%,
            transparent 70%
        );
        -webkit-mask:
            linear-gradient(#000 0 0) content-box,
            linear-gradient(#000 0 0);
        -webkit-mask-composite: xor;
        mask-composite: exclude;
        opacity: 0.45;
        transition: opacity 220ms;
    }

    &:hover {
        border-color: var(--border-2);

        &::before {
            opacity: 0.7;
        }
    }
}

/* A whole card acting as a link (sites list, funnels list). */
a.card-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    color: var(--text);

    &:hover {
        color: var(--text);
        border-color: var(--border-3);
        box-shadow:
            var(--shadow),
            0 0 24px rgba(45, 212, 191, 0.07);
        transform: translateY(-2px);
    }

    & .item-title {
        font-family: var(--font-display);
        font-weight: 600;
        font-size: 15px;
        letter-spacing: -0.01em;
    }

    & .item-sub {
        color: var(--muted);
        font-size: 12px;
    }

    & .item-arrow {
        color: var(--muted);
        font-size: 13px;
        transition:
            color 160ms,
            transform 160ms;
    }

    &:hover .item-arrow {
        color: var(--teal);
        transform: translateX(3px);
    }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* Compact CSV download button in a panel header. */
.csv-btn {
    padding: 2px 9px;
    font-size: 11px;
    letter-spacing: 0.04em;
    text-decoration: none;
}

/* Inline action buttons (e.g. Test + Delete in a channel row). */
.row-actions {
    display: flex;
    gap: 8px;
}
.row-actions form {
    display: inline;
}

/* Flash banners for the test-channel result. */
.flash {
    font-size: 13px;
    font-weight: 600;
}
.flash-ok {
    border-color: rgba(45, 212, 191, 0.5);
    color: #5eead4;
}
.flash-err {
    border-color: rgba(248, 113, 113, 0.5);
    color: #fca5a5;
}

h2 {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);

    /* Iridescent tick — quiet section marker. */
    &::before {
        content: "";
        width: 3px;
        height: 14px;
        border-radius: 2px;
        background: var(--iri);
        box-shadow: 0 0 8px rgba(45, 212, 191, 0.4);
    }
}

.card-caption {
    color: var(--muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.875rem;
}

/* Empty state inside a card. */
.empty {
    text-align: center;
    padding: 3.5rem 1rem;
    color: var(--muted);
}

/* ===== Hero (stats + chart in one panel) ===== */
.hero {
    padding: var(--space-4) var(--space-4) var(--space-3);
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem 3.25rem;
    margin-bottom: 1.375rem;
}

.hero .chart {
    height: 170px;
}

/* ===== Stats ===== */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(176px, 1fr));
    gap: var(--space-2);
}

.stat {
    & .label {
        color: var(--muted);
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.12em;
        font-weight: 600;
    }

    & .value {
        font-family: var(--font-display);
        font-size: 34px;
        font-weight: 700;
        margin-top: 5px;
        letter-spacing: -0.02em;
        font-variant-numeric: tabular-nums;
        background: linear-gradient(180deg, #ffffff 0%, #99f6e4 115%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    & .delta {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        margin-top: 6px;
        font-size: 12px;
        font-weight: 600;
        color: var(--muted-2);

        &.up {
            color: var(--green);
        }

        &.down {
            color: var(--red);
        }
    }
}

/* ===== Tables ===== */
table {
    width: 100%;
    border-collapse: collapse;
    font-variant-numeric: tabular-nums;
}

th {
    color: var(--muted);
    font-weight: 600;
    text-align: left;
    padding: 8px 10px;
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-bottom: 1px solid var(--border-2);
}

td {
    padding: 11px 10px;
    border-top: 1px solid var(--border);
    color: var(--text-2);
}

tr:hover td {
    background: rgba(94, 234, 212, 0.025);
}

td.cell-truncate {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

td.empty-cell {
    color: var(--muted);
    padding: 2.25rem;
    text-align: center;
}

/* Percentage bar inside a table cell. Width comes from the row's
   data via an inline `--w` custom property. */
.bar-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.bar {
    height: 6px;
    border-radius: 3px;
    min-width: 2px;
    width: var(--w, 0%);
    background: linear-gradient(
        90deg,
        var(--teal-deep) 0%,
        var(--teal) 55%,
        var(--cyan) 100%
    );
    box-shadow: 0 0 10px rgba(45, 212, 191, 0.4);
}

/* ===== Range tabs (7d / 30d / …) ===== */
.range-tabs {
    display: inline-flex;
    gap: 2px;
    padding: 3px;
    border-radius: 11px;
    background: color-mix(in srgb, var(--surface-2) 80%, transparent);
    border: 1px solid var(--border);
    box-shadow: var(--inner-hi);

    & a {
        padding: 5px 12px;
        border-radius: 8px;
        font-size: 12px;
        font-weight: 600;
        color: var(--muted);
        transition:
            background 160ms,
            color 160ms;

        &:hover {
            color: var(--text);
        }

        &.active {
            background: var(--grad-btn);
            color: #032621;
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.35),
                0 1px 6px rgba(45, 212, 191, 0.45);
        }
    }
}

/* ===== Top-level tabs ===== */
.tabs {
    display: flex;
    gap: var(--space-4);
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.75rem;
    position: relative;

    & a {
        padding: 0 0 11px;
        color: var(--muted);
        font-size: 13.5px;
        font-weight: 500;
        position: relative;
        transition: color 160ms;

        &:hover {
            color: var(--text-2);
        }

        &.active {
            color: var(--text);

            &::after {
                content: "";
                position: absolute;
                left: 0;
                right: 0;
                bottom: -1px;
                height: 2px;
                background: var(--iri);
                border-radius: 2px;
                box-shadow: 0 0 10px rgba(45, 212, 191, 0.55);
            }
        }
    }
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 15px;
    border-radius: 10px;
    border: 0;
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: -0.005em;
    transition:
        transform 180ms,
        box-shadow 180ms,
        background 180ms,
        border-color 180ms,
        color 180ms;
}

/* Bright teal, dark ink — the carapace catching light. */
.btn-primary {
    color: #032621;
    background-image: var(--grad-btn);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        inset 0 -1px 0 rgba(0, 0, 0, 0.15),
        var(--glow-teal);

    &:hover {
        transform: translateY(-1px);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.4),
            inset 0 -1px 0 rgba(0, 0, 0, 0.15),
            0 6px 16px rgba(45, 212, 191, 0.38),
            0 18px 40px rgba(45, 212, 191, 0.22);
    }

    &:active {
        transform: translateY(0);
    }
}

.btn-ghost {
    background: rgba(186, 240, 245, 0.03);
    color: var(--text-2);
    border: 1px solid var(--border-2);
    box-shadow: var(--inner-hi);

    &:hover {
        background: rgba(186, 240, 245, 0.07);
        border-color: var(--border-3);
        color: var(--text);
    }
}

.btn-danger {
    color: #fff;
    background: color-mix(in srgb, var(--red) 80%, #1a0509);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.18),
        0 4px 12px rgba(251, 113, 133, 0.25);

    &:hover {
        background: var(--red);
        transform: translateY(-1px);
    }
}

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 11px;
    font-size: 14px;
}

.btn-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* ===== Forms ===== */
label {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
    font-weight: 600;
}

input,
select,
textarea {
    font: inherit;
    background: rgba(0, 0, 0, 0.32);
    border: 1px solid var(--border-2);
    color: var(--text);
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 13px;
    transition:
        border-color 180ms,
        box-shadow 180ms,
        background 180ms;
    box-shadow: var(--inner-hi);

    &:focus {
        outline: none;
        border-color: rgba(45, 212, 191, 0.55);
        box-shadow:
            var(--inner-hi),
            0 0 0 4px var(--teal-soft);
    }
}

textarea {
    resize: vertical;
}

.mono {
    font-family: var(--font-mono);
    font-size: 12px;
}

/* A labelled control; stretches its control full-width. */
.field {
    margin-bottom: 0.875rem;

    & input,
    & select,
    & textarea {
        width: 100%;
    }
}

/* Inline form: fields side by side, button aligned to their baseline. */
.form-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: flex-end;

    & .field {
        margin-bottom: 0;
    }
}

.switch-row {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 38px;
}

.switch {
    position: relative;
    width: 42px;
    height: 24px;

    & input {
        position: absolute;
        opacity: 0;
        pointer-events: none;
    }
}

.switch-track {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 999px;
    background: color-mix(in srgb, var(--line) 80%, #000);
    border: 1px solid var(--line);
    transition:
        background 140ms,
        border-color 140ms;
    position: relative;

    &::after {
        content: "";
        position: absolute;
        left: 2px;
        top: 2px;
        width: 18px;
        height: 18px;
        border-radius: 50%;
        background: #dbe7ec;
        transition: transform 140ms ease;
    }
}

.switch input:checked + .switch-track {
    background: color-mix(in srgb, var(--teal) 60%, #0b1117);
    border-color: color-mix(in srgb, var(--teal) 70%, var(--line));

    &::after {
        transform: translateX(18px);
        background: #e8fffb;
    }
}

/* Native <details> as a no-JS reveal panel. */
details.reveal {
    & > summary {
        list-style: none;
        width: fit-content;

        &::-webkit-details-marker {
            display: none;
        }
    }

    & > .card {
        margin-top: 1rem;
    }
}

/* ===== Charts ===== */
.chart {
    width: 100%;
    height: 130px;
    display: block;
}

.funnel {
    display: flex;
    gap: 3px;
    align-items: flex-end;
    height: 220px;
}

.funnel-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    gap: 7px;
    height: 100%;
}

/* Bar height comes from the step's conversion rate via inline `--h`. */
.funnel-bar {
    width: 100%;
    height: var(--h, 4px);
    min-height: 4px;
    border-radius: 6px 6px 0 0;
    background: linear-gradient(
        180deg,
        var(--teal-hi) 0%,
        var(--teal) 35%,
        color-mix(in srgb, var(--violet) 60%, var(--teal-deep)) 100%
    );
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        0 0 16px rgba(45, 212, 191, 0.25);
}

.funnel-rate {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 600;
    color: var(--teal-hi);
}

.funnel-name {
    font-size: 12px;
    text-align: center;
    color: var(--muted);
    padding: 0 4px;
}

.funnel-count {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* ===== Funnel Builder ===== */
.fb-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 12px;
}

.fb-step {
    border: 1px solid var(--border-2);
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.18);
}

.fb-step-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 12px;
    background: rgba(45, 212, 191, 0.04);
    border-bottom: 1px solid var(--border-2);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.fb-step-num {
    font-size: 11px;
    font-weight: 700;
    color: var(--teal-hi);
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.fb-step-body {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.fb-fields {
    display: flex;
    gap: 10px;

    & .field {
        flex: 1;
        margin-bottom: 0;
    }
}

.fb-filter-row {
    display: flex;
    gap: 6px;
    align-items: center;

    & select {
        flex: 0 0 auto;
    }

    & input {
        flex: 1;
        min-width: 0;
    }
}

.fb-remove-btn {
    background: transparent;
    border: 0;
    color: var(--muted-2);
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    padding: 3px 6px;
    border-radius: 6px;
    transition:
        color 140ms,
        background 140ms;
    flex-shrink: 0;

    &:hover {
        color: var(--red);
        background: rgba(251, 113, 133, 0.1);
    }
}

.fb-add-filter-btn {
    font-size: 11px;
    padding: 4px 10px;
    color: var(--muted);
    border-color: var(--border);
    width: fit-content;
}

.fb-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 22px;
    color: var(--muted-2);
    font-size: 13px;
    pointer-events: none;
    user-select: none;
}

.fb-add-step-btn {
    margin-bottom: 16px;
}

/* ===== Status pill ===== */
.pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--surface-2);
    border: 1px solid var(--border-2);
    color: var(--muted);

    &::before {
        content: "";
        width: 6px;
        height: 6px;
        border-radius: 999px;
        background: currentColor;
        box-shadow: 0 0 6px currentColor;
    }

    &.ok {
        color: var(--green);
    }

    &.warn {
        color: var(--gold);
    }

    &.err {
        color: var(--red);
    }
}

/* ===== Skeleton ===== */
.skeleton {
    height: 200px;
    border-radius: var(--radius);
    background:
        linear-gradient(
            90deg,
            transparent 0%,
            rgba(186, 240, 245, 0.05) 50%,
            transparent 100%
        ),
        var(--surface-2);
    background-size:
        200% 100%,
        100% 100%;
    animation: skeleton-shimmer 1.6s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
    0% {
        background-position:
            -100% 0,
            0 0;
    }

    100% {
        background-position:
            100% 0,
            0 0;
    }
}

/* ===== Dialog ===== */
dialog {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border-2);
    border-radius: var(--radius);
    padding: var(--space-3);
    min-width: 360px;
    box-shadow: var(--shadow);

    &::backdrop {
        background: rgba(2, 6, 9, 0.65);
        backdrop-filter: blur(4px);
    }

    & form {
        display: flex;
        flex-direction: column;
        gap: 8px;
        margin-top: 1rem;
    }
}

.dialog-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* ===== Error banner ===== */
.form-error {
    color: var(--red);
    font-size: 13px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    background: rgba(251, 113, 133, 0.08);
    border: 1px solid rgba(251, 113, 133, 0.22);
    margin-bottom: 1rem;
}

/* ===== Auth (login) page ===== */
body.auth {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background-image:
        radial-gradient(
            60% 70% at 20% 16%,
            rgba(45, 212, 191, 0.22) 0%,
            transparent 60%
        ),
        radial-gradient(
            55% 60% at 80% 80%,
            rgba(232, 121, 249, 0.13) 0%,
            transparent 65%
        ),
        radial-gradient(
            45% 55% at 55% 110%,
            rgba(129, 140, 248, 0.16) 0%,
            transparent 65%
        ),
        linear-gradient(165deg, #04080b 0%, #071119 55%, #0a1626 100%);
}

/* Slow aurora drift behind the card. */
body.auth::after {
    content: "";
    position: fixed;
    inset: -20%;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(
            34% 28% at 36% 38%,
            rgba(45, 212, 191, 0.1),
            transparent 70%
        ),
        radial-gradient(
            30% 26% at 64% 60%,
            rgba(129, 140, 248, 0.09),
            transparent 70%
        );
    filter: blur(40px);
    animation: aurora-drift 24s ease-in-out infinite alternate;
}

@keyframes aurora-drift {
    from {
        transform: translate3d(-3%, -2%, 0) rotate(-2deg);
    }

    to {
        transform: translate3d(3%, 2%, 0) rotate(2deg);
    }
}

.auth-card {
    z-index: 1;
    width: 100%;
    max-width: 23.6rem; /* ≈ 380px, golden share of standard hero column */
    padding: 2.4375rem 2.125rem 2.125rem; /* φ-derived rhythm */
    border-radius: 1.375rem;
    box-shadow:
        var(--inner-hi),
        0 1px 2px rgba(0, 0, 0, 0.4),
        0 18px 40px rgba(0, 0, 0, 0.5),
        0 36px 80px rgba(45, 212, 191, 0.1);
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);

    /* Full iridescent 1px ring — the login card gets the showpiece. */
    &::before {
        inset: -1px;
        padding: 1px;
        background: linear-gradient(
            135deg,
            rgba(94, 234, 212, 0.5),
            rgba(34, 211, 238, 0.2) 30%,
            transparent 55%,
            rgba(129, 140, 248, 0.25) 80%,
            rgba(232, 121, 249, 0.35) 100%
        );
        opacity: 0.7;
    }

    & .logo {
        margin-bottom: var(--space-4);
    }

    & h1 {
        font-size: 1.5rem;
        line-height: 1.2;
        letter-spacing: -0.02em;
        font-weight: 700;
        margin-bottom: 0.25rem;
    }

    & input {
        padding: 10px 12px;
        font-size: 14px;
    }

    & .field {
        margin-bottom: 1.125rem;
    }
}

.auth-subtitle {
    color: var(--muted);
    font-size: 0.875rem;
    margin-bottom: var(--space-4);
}

.auth-foot {
    margin-top: 1.25rem;
    text-align: center;
    font-size: 12px;
    color: var(--muted-2);
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
    @view-transition {
        navigation: none;
    }

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }

    ::view-transition-group(*),
    ::view-transition-old(*),
    ::view-transition-new(*) {
        animation: none !important;
    }
}

/* ===== Controls bar: filters + custom range + compare ===== */
.controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.25rem;
}

/* Active filter pills */
.filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 4px 6px 4px 11px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    background: color-mix(in srgb, var(--surface-2) 80%, transparent);
    border: 1px solid var(--border);
}

.filter-pill .rm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 17px;
    height: 17px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1;
    transition:
        background 140ms,
        color 140ms;
}

.filter-pill .rm:hover {
    background: var(--red);
    color: #fff;
}

/* Inline add-filter + custom-range forms */
.controls form {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.controls select,
.controls input[type="text"],
.controls input[type="date"] {
    padding: 5px 8px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    background: var(--surface-2);
    border: 1px solid var(--border);
}

.controls button {
    padding: 5px 11px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    color: #032621;
    background: var(--grad-btn);
    border: none;
    cursor: pointer;
}

.controls button.ghost {
    color: var(--muted);
    background: color-mix(in srgb, var(--surface-2) 80%, transparent);
    border: 1px solid var(--border);
}

/* Compare-period toggle */
.compare-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
    background: color-mix(in srgb, var(--surface-2) 80%, transparent);
    border: 1px solid var(--border);
    transition:
        color 160ms,
        border-color 160ms;
}

.compare-toggle:hover {
    color: var(--text-2);
}

.compare-toggle.on {
    color: #032621;
    background: var(--grad-btn);
    border-color: transparent;
}

/* "new" / "flat" delta variants extend the existing .stat .delta rules */
.stat .delta.new {
    color: var(--teal);
}

/* Clickable dimension values (click a row to add a filter) */
a.row-link {
    color: inherit;
    border-bottom: 1px dotted var(--border-2);
}

a.row-link:hover {
    color: var(--teal);
    border-bottom-color: var(--teal);
}

.cmp-prev {
    color: var(--muted);
    font-weight: 500;
}

.controls .ctl-sep {
    color: var(--muted);
    opacity: 0.6;
}

/* ---- Tier-3: sparklines, retention grid, paths ---- */

/* Mini per-row trend chart in top-N tables */
svg.spark {
    width: 64px;
    height: 18px;
    display: block;
}

/* Retention cohort grid: heatmapped cells keyed off --p (return %) */
table.retention-grid td.ret-cell {
    text-align: center;
    font-variant-numeric: tabular-nums;
    background: color-mix(in srgb, var(--teal) var(--p, 0%), transparent);
    border-radius: 4px;
}

/* Path step separator */
.path-arrow {
    color: var(--muted);
    padding: 0 0.15rem;
}