/* SPDX-FileCopyrightText: 2025 Topias Silfverhuth
   SPDX-License-Identifier: MIT

   Ruuvi Dashboard — shared stylesheet.
   Dark is the default theme; [data-theme="light"] on <html> flips the tokens. */

:root {
    color-scheme: dark;

    --bg: #0e1211;
    --bg-sunken: #0a0d0c;
    --panel: #151b19;
    --panel-hi: #1b2321;
    --line: #253029;
    --line-soft: #1c2422;

    --text: #e7ece9;
    --text-dim: #8d9b96;
    --text-faint: #5d6b66;

    --brass: #e0b070;
    --brass-dim: #7b5f34;
    --brass-wash: rgba(224, 176, 112, 0.12);

    --live: #5fc08c;
    --stale: #c2705a;

    --s1: #5fbfa9;
    --s2: #e0b070;
    --s3: #d97f66;
    --s4: #7fa6d8;
    --s5: #b98fd0;

    --rail-w: 232px;
    --rail-w-collapsed: 68px;
    --radius: 6px;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);

    --font:
        system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial,
        sans-serif;
    --mono:
        ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
        "Liberation Mono", monospace;
}

[data-theme="light"] {
    color-scheme: light;

    --bg: #f4f2ec;
    --bg-sunken: #e9e6dd;
    --panel: #fffefb;
    --panel-hi: #f7f5ef;
    --line: #ddd8cb;
    --line-soft: #e8e4d9;

    --text: #1a201e;
    --text-dim: #5d6764;
    --text-faint: #8d9793;

    --brass: #8a5f1c;
    --brass-dim: #c9a76b;
    --brass-wash: rgba(138, 95, 28, 0.09);

    --live: #2f8b5c;
    --stale: #a8452c;

    --s1: #2f8a78;
    --s2: #a87b28;
    --s3: #b4543a;
    --s4: #40699e;
    --s5: #7d4f96;

    --shadow: 0 1px 2px rgba(40, 34, 20, 0.09);
}

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

html,
body {
    height: 100%;
}

body {
    margin: 0;
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}

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

/* Beats the display values set on .empty / .readings below. */
[hidden] {
    display: none !important;
}

h1,
h2,
h3 {
    margin: 0;
    font-weight: 600;
    letter-spacing: -0.01em;
}

::selection {
    background: var(--brass-wash);
}

:focus-visible {
    outline: 2px solid var(--brass);
    outline-offset: 2px;
    border-radius: 3px;
}

/* Micro label used for units, column captions, section eyebrows. */
.eyebrow {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-faint);
}

.num {
    font-family: var(--mono);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}

/* ---------------------------------------------------------------- shell */

.shell {
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

/* ----------------------------------------------------------------- rail */

.rail {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: var(--bg-sunken);
    border-right: 1px solid var(--line-soft);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 18px 14px;
    min-width: 0;
}

.brand-mark {
    flex: none;
    width: 26px;
    height: 26px;
    color: var(--brass);
}

.brand-text {
    min-width: 0;
}

.brand-name {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.brand-sub {
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-faint);
    white-space: nowrap;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 6px 10px;
}

.nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 9px 12px;
    border-radius: var(--radius);
    color: var(--text-dim);
    font-size: 0.9rem;
    white-space: nowrap;
    transition:
        background-color 0.15s ease,
        color 0.15s ease;
}

.nav-link svg {
    flex: none;
    width: 17px;
    height: 17px;
}

.nav-link:hover {
    background: var(--panel-hi);
    color: var(--text);
}

.nav-link.active {
    background: var(--brass-wash);
    color: var(--brass);
    font-weight: 550;
}

.nav-link.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 20%;
    bottom: 20%;
    width: 2px;
    border-radius: 2px;
    background: var(--brass);
}

.rail-foot {
    margin-top: auto;
    padding: 12px;
    border-top: 1px solid var(--line-soft);
    display: flex;
    align-items: center;
    gap: 8px;
}

.rail-toggle {
    margin-left: auto;
}

/* Icon-only buttons (theme switch, rail collapse). */
.icon-btn {
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
    color: var(--text-dim);
    cursor: pointer;
    font: inherit;
    font-size: 0.8rem;
    transition:
        color 0.15s ease,
        border-color 0.15s ease,
        background-color 0.15s ease;
}

.icon-btn:hover {
    color: var(--brass);
    border-color: var(--brass-dim);
}

.icon-btn svg {
    width: 16px;
    height: 16px;
}

/* One button, two glyphs — show whichever matches the active theme. */
.icon-btn .glyph-light {
    display: none;
}
[data-theme="light"] .icon-btn .glyph-light {
    display: block;
}
[data-theme="light"] .icon-btn .glyph-dark {
    display: none;
}

/* --------------------------------------------------------------- status */

.status {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 10px 5px 8px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--panel);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    white-space: nowrap;
}

.status-dot {
    flex: none;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--stale);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--stale) 22%, transparent);
    transition:
        background-color 0.25s ease,
        box-shadow 0.25s ease;
}

.status.connected .status-dot {
    background: var(--live);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--live) 22%, transparent);
}

.status.connected {
    color: var(--text);
}

/* ------------------------------------------------------------ main area */

.main {
    flex: 1;
    min-width: 0;
    padding: 26px 28px 40px;
}

.page-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px 16px;
    padding-bottom: 14px;
    margin-bottom: 22px;
    border-bottom: 1px solid var(--line-soft);
}

.page-title {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 1.5rem;
}

.page-title .unit {
    font-family: var(--mono);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--brass);
}

.page-meta {
    font-size: 0.78rem;
    color: var(--text-faint);
}

.page-meta .num {
    color: var(--text-dim);
}

.page-meta:has(.logout-form) {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logout-form {
    display: inline-flex;
}

/* --------------------------------------------------------- reading grid */

.readings {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 14px;
}

.card {
    position: relative;
    padding: 16px 18px 14px;
    background: var(--panel);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* Series stripe ties each card to its line colour on the graphs. */
.card::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 2px;
    background: var(--series, var(--brass));
    opacity: 0.85;
}

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}

.card-name {
    font-size: 0.92rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-id {
    flex: none;
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--text-faint);
    padding: 2px 6px;
    border: 1px solid var(--line);
    border-radius: 3px;
}

.reading-main {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 14px;
}

.reading-value {
    font-family: var(--mono);
    font-variant-numeric: tabular-nums;
    font-size: 2.1rem;
    line-height: 1.05;
    letter-spacing: -0.035em;
    font-weight: 500;
}

.reading-unit {
    font-family: var(--mono);
    font-size: 0.95rem;
    color: var(--text-dim);
}

.reading-sub {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding-top: 12px;
    border-top: 1px dashed var(--line);
}

.reading-sub div {
    min-width: 0;
}

.reading-sub .eyebrow {
    display: block;
    margin-bottom: 2px;
}

.reading-sub .num {
    font-size: 1rem;
    color: var(--text);
}

.reading-sub .num span {
    font-size: 0.78rem;
    color: var(--text-faint);
    margin-left: 2px;
}

/* ----------------------------------------------------------- empty state */

.empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 220px;
    padding: 32px 20px;
    text-align: center;
    background:
        repeating-linear-gradient(
            45deg,
            var(--line-soft) 0 1px,
            transparent 1px 9px
        ),
        var(--panel);
    border: 1px dashed var(--line);
    border-radius: var(--radius);
    color: var(--text-dim);
}

.empty strong {
    color: var(--text);
    font-weight: 600;
}

.empty p {
    margin: 0;
    font-size: 0.85rem;
    max-width: 42ch;
}

/* -------------------------------------------------------- graph controls */

.controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.segmented {
    display: flex;
    gap: 2px;
    padding: 3px;
    background: var(--bg-sunken);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    overflow-x: auto;
    scrollbar-width: none;
    max-width: 100%;
}

.segmented::-webkit-scrollbar {
    display: none;
}

.segmented a {
    flex: none;
    padding: 6px 13px;
    border-radius: 4px;
    font-size: 0.82rem;
    color: var(--text-dim);
    white-space: nowrap;
    transition:
        background-color 0.15s ease,
        color 0.15s ease;
}

.segmented a:hover {
    color: var(--text);
    background: var(--panel-hi);
}

.segmented a.active {
    background: var(--panel);
    color: var(--brass);
    font-weight: 550;
    box-shadow: var(--shadow);
}

.range-form {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 3px 3px 3px 12px;
    background: var(--bg-sunken);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
}

.range-form .eyebrow {
    flex: none;
}

.field {
    height: 30px;
    padding: 0 8px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--panel);
    color: var(--text);
    font: inherit;
    font-size: 0.82rem;
}

.field:hover {
    border-color: var(--brass-dim);
}

input.field {
    width: 100px;
    font-family: var(--mono);
    text-align: center;
}

select.field {
    cursor: pointer;
}

/* --------------------------------------------------------------- graph */

.graph-panel {
    padding: 16px 16px 12px;
    background: var(--panel);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.graph-canvas {
    position: relative;
    height: clamp(320px, 58vh, 620px);
}

.graph-foot {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 12px;
    margin-top: 12px;
    border-top: 1px dashed var(--line);
}

/* ---------------------------------------------------------- admin forms */

.stack {
    display: grid;
    gap: 16px;
    max-width: 560px;
}

.panel {
    padding: 18px;
    background: var(--panel);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.panel h2 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.panel-note {
    margin: 0 0 16px;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.form-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.form-row label {
    flex: none;
    width: 130px;
    font-size: 0.82rem;
    color: var(--text-dim);
}

.form-row .field {
    flex: 1;
    min-width: 140px;
    width: auto;
    text-align: left;
}

.form-row .suffix {
    font-size: 0.8rem;
    color: var(--text-faint);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    padding: 0 16px;
    border: 1px solid var(--brass-dim);
    border-radius: var(--radius);
    background: var(--brass-wash);
    color: var(--brass);
    font: inherit;
    font-size: 0.83rem;
    font-weight: 550;
    cursor: pointer;
    transition:
        background-color 0.15s ease,
        border-color 0.15s ease;
}

.btn:hover {
    background: color-mix(in srgb, var(--brass) 22%, transparent);
}

.btn-ghost {
    height: 28px;
    padding: 0 12px;
    font-size: 0.76rem;
    border-color: var(--line);
    background: transparent;
    color: var(--text-dim);
}

.btn-ghost:hover {
    background: var(--line-soft);
    color: var(--text);
}

.login-panel {
    max-width: 360px;
}

.notice {
    display: none;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    padding: 10px 12px;
    border: 1px solid color-mix(in srgb, var(--live) 40%, var(--line));
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--live) 10%, transparent);
    color: var(--text);
    font-size: 0.85rem;
}

.notice.show {
    display: flex;
}

/* --------------------------------------------------------- ai analysis */

.analysis-panel {
    margin-top: 32px;
    padding: 14px 16px;
    background: transparent;
    border: 1px dashed var(--line);
    border-radius: var(--radius);
    box-shadow: none;
}

.analysis-panel h2 {
    font-size: 0.82rem;
    font-weight: 550;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.analysis-panel .panel-note {
    margin-bottom: 12px;
}

.analysis-panel .btn {
    height: 28px;
    padding: 0 12px;
    font-size: 0.78rem;
    border-color: var(--line);
    background: transparent;
    color: var(--text-dim);
}

.analysis-panel .btn:hover {
    background: var(--line-soft);
    color: var(--text);
}

.analysis-panel .notice {
    font-size: 0.82rem;
}

.analysis-auth {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.analysis-auth .field {
    height: 28px;
    max-width: 180px;
    font-size: 0.8rem;
}

/* --------------------------------------------------------- wide layout */

@media (min-width: 900px) {
    .shell {
        display: grid;
        grid-template-columns: var(--rail-w) minmax(0, 1fr);
        align-items: stretch;
    }

    .rail-collapsed .shell {
        grid-template-columns: var(--rail-w-collapsed) minmax(0, 1fr);
    }

    .rail {
        position: sticky;
        top: 0;
        height: 100vh;
        overflow-y: auto;
    }

    /* Collapsed rail keeps the icons and drops the words — no squeezed text. */
    .rail-collapsed .rail {
        align-items: center;
    }
    .rail-collapsed .brand {
        padding: 18px 0 14px;
        justify-content: center;
    }
    .rail-collapsed .brand-text,
    .rail-collapsed .nav-link span,
    .rail-collapsed .status span {
        display: none;
    }
    .rail-collapsed .nav {
        width: 100%;
        align-items: center;
        padding: 6px 8px;
    }
    .rail-collapsed .nav-link {
        justify-content: center;
        padding: 10px;
        width: 44px;
    }
    .rail-collapsed .rail-foot {
        flex-direction: column;
        width: 100%;
    }
    .rail-collapsed .rail-toggle {
        margin-left: 0;
    }
    .rail-collapsed .status {
        padding: 6px;
    }

    .main {
        padding: 30px 34px 48px;
    }

    .main-inner {
        max-width: 1180px;
    }
}

/* -------------------------------------------------------- narrow layout */

@media (max-width: 899px) {
    /* The rail becomes a top bar: brand and controls on one row, nav beneath. */
    .rail {
        position: sticky;
        top: 0;
        z-index: 20;
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 0;
        border-right: none;
        border-bottom: 1px solid var(--line-soft);
        backdrop-filter: blur(8px);
        background: color-mix(in srgb, var(--bg-sunken) 92%, transparent);
    }

    .brand {
        grid-row: 1;
        grid-column: 1;
        padding: 11px 8px 11px 16px;
        gap: 9px;
    }

    .brand-mark {
        width: 22px;
        height: 22px;
    }
    .brand-sub {
        display: none;
    }

    .rail-foot {
        grid-row: 1;
        grid-column: 2;
        align-self: center;
        margin: 0;
        padding: 0 12px 0 0;
        border-top: none;
        gap: 8px;
    }

    .rail-toggle {
        display: none;
    }

    .nav {
        grid-row: 2;
        grid-column: 1 / -1;
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 5px;
        padding: 0 12px 10px;
    }

    .nav-link {
        justify-content: center;
        gap: 8px;
        padding: 9px 8px;
        min-width: 0;
        font-size: 0.85rem;
        background: var(--panel);
        border: 1px solid var(--line-soft);
    }

    .nav-link span {
        max-width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .nav-link.active::before {
        display: none;
    }

    .nav-link.active {
        border-color: var(--brass-dim);
    }

    .main {
        padding: 18px 16px 36px;
    }

    .page-head {
        margin-bottom: 18px;
    }

    .page-title {
        font-size: 1.25rem;
    }

    .controls {
        gap: 10px;
    }

    .graph-panel {
        padding: 12px 10px 10px;
    }

    .graph-canvas {
        height: clamp(260px, 46vh, 420px);
    }
}

@media (max-width: 560px) {
    /* Phone tab bar: glyph over label so four items fit without scrolling. */
    .nav-link {
        flex-direction: column;
        gap: 4px;
        padding: 8px 4px;
        font-size: 0.75rem;
    }

    /* Range controls span the width rather than stranding themselves mid-row. */
    .segmented,
    .range-form {
        width: 100%;
    }

    .segmented a {
        flex: 1;
        text-align: center;
        padding: 6px 8px;
    }

    .range-form {
        justify-content: space-between;
    }

    /* One caption is enough under the chart on a phone. */
    .graph-foot > :last-child {
        display: none;
    }
}

@media (max-width: 420px) {
    .readings {
        grid-template-columns: 1fr;
    }

    .nav-link {
        font-size: 0.7rem;
    }

    .form-row label {
        width: 100%;
    }
}

/* Short landscape phones: keep the chart from pushing everything off-screen. */
@media (max-height: 520px) and (max-width: 899px) {
    .graph-canvas {
        height: 240px;
    }
    .page-head {
        margin-bottom: 12px;
        padding-bottom: 10px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}