school_compare/nextjs-app/app/globals.css

/*
 * schoolcompare — "Find the right school. For their future."
 *
 * Implements the schoolcompare brand guideline. Colour has four jobs and they
 * never borrow each other's hues:
 *   brand   (deep teal)  identity, navigation, headings, links, primary buttons
 *   action  (coral)      the one decisive action on a page — search, submit
 *   status  (green /     valence against the England average. Never a CTA.
 *            terracotta)
 *   phase   (desaturated) category chips, deliberately subordinate.
 *
 * Two deviations from the supplied swatches, both forced by contrast, both
 * confined to text and fills. Coral #F97360 carrying a white label measures
 * 2.75:1 where 4.5 is the floor, so --action is a darkened #BE3C27; the
 * original coral survives as --coral for tints, borders and illustration.
 * Mustard #F2C94C is 1.5:1 as text, so --mustard-ink carries any label while
 * --mustard stays exact for fills, rings and badges.
 *
 * Every value below clears WCAG AA on all three light grounds — Warm White,
 * white cards and Sand. Sand is the binding one; several values are a step
 * darker than they would need to be on white alone.
 */

:root {
    color-scheme: light;

    /* ── Ground ─────────────────────────────────────────────────────── */
    --bg-primary: #FAFAF8;      /* Warm White */
    --bg-secondary: #F5EFE6;    /* Sand — hero panels, sunken rows */
    --bg-card: #FFFFFF;
    --surface-inverse: #0F766E;

    /* ── Ink ────────────────────────────────────────────────────────── */
    --text-primary: #1C2731;    /* Ink */
    --text-secondary: #4A5560;
    --text-muted: #5F6A75;      /* 4.8:1 on Sand, the worst ground */
    --text-inverse: #FFFFFF;

    /* ── Line ───────────────────────────────────────────────────────── */
    --border: #E5E7EB;          /* Light Grey */
    --border-strong: #D3D7DD;

    /* ── Brand: deep teal ───────────────────────────────────────────── */
    --brand: #0F766E;           /* exact brand value; 4.8:1 on Sand */
    --brand-strong: #0C5F58;
    --brand-stronger: #0A4D47;
    --brand-bg: rgba(15, 118, 110, 0.10);
    --brand-on: #FFFFFF;

    /* ── Action: coral. One per screen, and only for the decisive one. ── */
    --action: #BE3C27;          /* darkened coral — 5.4:1 under a white label */
    --action-strong: #A33320;
    --action-stronger: #8C2B1B;
    /* Tint of --action, not of --coral, so a coral ghost button's label and
       ground share a hue. Unused today; the dark value was already correct. */
    --action-bg: rgba(190, 60, 39, 0.14);
    --action-on: #FFFFFF;

    /* ── Palette accents: exact brand values, for fills and tints only ── */
    --coral: #F97360;
    --mustard: #F2C94C;
    --mustard-ink: #806200;     /* any label that has to sit on or beside mustard */
    --sage: #A7D7C5;
    --sky: #C7EBF5;
    --lavender: #DDD8F5;
    --sand: #F5EFE6;

    /* ── Status: above / at / below the England average ─────────────── */
    --status-above: #36743F;
    --status-above-bg: rgba(54, 116, 63, 0.12);
    --status-below: #A9481F;
    /* The tint is the solid hue at low alpha, exactly as every other pair in
       this file is. It briefly carried the raw --coral tuple instead, which
       put a coral-pink wash behind terracotta text — the one mismatched pair
       in the palette. Alpha matches --status-above-bg so the two chips read
       as equal weight; at 0.15 the darker terracotta tint drops the label to
       4.45:1 on Warm White. */
    --status-below-bg: rgba(169, 72, 31, 0.12);
    --status-at: #5F6A75;
    --status-at-bg: rgba(95, 106, 117, 0.10);

    /* ── Charts ─────────────────────────────────────────────────────── */
    --chart-1: #0F766E;
    --chart-2: #36743F;
    --chart-3: #806200;
    --chart-4: #A9481F;
    --chart-5: #2F6F8F;
    --chart-6: #5F4FA8;
    --chart-grid: #E5E7EB;
    --chart-reference: #5F6A75;

    /* ── Series: up to 8 schools compared at once ───────────────────────
       Categorical, so wider than the four-hue rule — but every step is held
       to the same mid-dark tone and clears AA on the card, so they read as
       one family and work as legend text as well as chart lines. */
    --series-1: #0F766E;
    --series-2: #36743F;
    --series-3: #806200;
    --series-4: #A9481F;
    --series-5: #2F6F8F;
    --series-6: #5F4FA8;
    --series-7: #0E7A86;
    --series-8: #8A4A6B;

    /* ── Phase: category, desaturated so it stays under the status hues ── */
    --phase-primary: #0F766E;
    --phase-primary-bg: rgba(167, 215, 197, 0.40);
    --phase-primary-text: #0C5F58;
    --phase-secondary: #2F6F8F;
    --phase-secondary-bg: rgba(199, 235, 245, 0.55);
    --phase-secondary-text: #2A6180;
    --phase-all-through: #36743F;
    --phase-all-through-bg: rgba(54, 116, 63, 0.12);
    --phase-all-through-text: #2F6738;
    --phase-post16: #806200;
    --phase-post16-bg: rgba(242, 201, 76, 0.26);
    --phase-post16-text: #6E5500;
    --phase-nursery: #5F4FA8;
    --phase-nursery-bg: rgba(221, 216, 245, 0.55);
    --phase-nursery-text: #544396;

    /* ── Sunken surface: the footer, and anything meant to read as a deep
          teal anchor band. Stays teal in both themes on purpose — it is the
          "brand in action" card from the guideline. ─────────────────── */
    --surface-sunken: #0C5F58;
    --on-sunken: #FFFFFF;
    --on-sunken-muted: #C9E4DB;
    --on-sunken-faint: #A9D6CA;
    --on-sunken-link: #C7EBF5;

    /* ── Medals: rankings podium ────────────────────────────────────── */
    --medal-gold: #806200;
    --medal-silver: #6B7580;
    --medal-bronze: #8A5A2B;

    /* ── Channels ───────────────────────────────────────────────────────
       CSS can't interpolate a hex token into rgba(), so any tint that needs
       an arbitrary alpha reads the raw channels from here. Keep these in
       sync with the hex tokens above — they are the same colours. */
    --brand-rgb: 15, 118, 110;
    --action-rgb: 190, 60, 39;
    --coral-rgb: 249, 115, 96;
    --sage-rgb: 167, 215, 197;
    --status-above-rgb: 54, 116, 63;
    --status-below-rgb: 169, 72, 31;
    --ink-rgb: 28, 39, 49;
    --text-inverse-rgb: 255, 255, 255;
    --shadow-rgb: 28, 39, 49;
    --muted-rgb: 95, 106, 117;
    --phase-secondary-rgb: 47, 111, 143;
    --medal-silver-rgb: 107, 117, 128;
    --medal-bronze-rgb: 138, 90, 43;

    /* ── Elevation ──────────────────────────────────────────────────── */
    --shadow-soft: 0 1px 2px rgba(28, 39, 49, 0.04), 0 2px 8px rgba(28, 39, 49, 0.05);
    --shadow-medium: 0 4px 18px rgba(28, 39, 49, 0.09);
    --shadow-strong: 0 10px 34px rgba(28, 39, 49, 0.13);
    --scrim: rgba(28, 39, 49, 0.5);

    /* ── Type ───────────────────────────────────────────────────────────
       Manrope for headings and key messaging; Inter for body copy, every
       control and every figure. next/font expands each variable to the
       family plus its metric-matched fallback, and the classes sit on
       <html> so :root can see them — see app/layout.tsx. */
    --font-display: var(--font-manrope), -apple-system, BlinkMacSystemFont, sans-serif;
    --font-ui: var(--font-inter), -apple-system, BlinkMacSystemFont, sans-serif;
    --font-data: var(--font-inter), -apple-system, BlinkMacSystemFont, sans-serif;
    --font-prose: var(--font-inter), -apple-system, BlinkMacSystemFont, sans-serif;

    /* Type scale, straight from the guideline: H1 40/48, H2 32/40, H3 24/32,
       body large 16/24, body 14/20, small 12/16. */
    --step--2: 0.75rem;
    --step--1: 0.875rem;
    --step-0: 1rem;
    --step-1: 1.125rem;
    --step-2: 1.5rem;
    --step-3: 2rem;
    --step-4: 2.5rem;
    --step-5: 3rem;

    /* ── Section rhythm ─────────────────────────────────────────────────
       The vertical gap between the bands of a page, and the gap between a
       band's header and its content. Two values, not seven: the landing page
       previously set its own margin on every band (24 / 32 / 16 / 48px, no
       scale), which is what made a designed page read as a stack of unrelated
       strips. Bands must not set their own vertical margins — the page
       container owns the gap. */
    --section-gap: 4rem;
    --section-head-gap: 1.5rem;

    /* ── Hero artwork ───────────────────────────────────────────────────
       The landing hero is now a supplied raster illustration rather than a
       drawn SVG, so its colours are in the file, not here. What is left is the
       ground the artwork sits on and fades into.

       --hero-ground is sampled from the artwork's own copy area, not from
       Sand — a scrim in Sand (#F5EFE6) is far enough off to leave a visible
       seam straight down the hero.

       The artwork's copy area is not one flat colour: it runs from a peach
       #FEE8D2 at the top to a cream #FDF3E7 around 43% height, and below ~48%
       the left edge is foliage rather than cream. This value is sampled from
       the middle of that pale run, where the headline and search actually sit;
       the scrim is what covers the foliage further down. */
    --hero-ground: #FEF2E1;
    --hero-ground-rgb: 254, 242, 225;

    /* ── Geometry & motion ──────────────────────────────────────────────
       "Soft shapes, rounded corners" — the guideline's geometry is markedly
       rounder than the old system's 3/6/10/16. */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;

    --transition: 0.2s ease;
    --transition-slow: 0.4s ease;
}

/*
 * Dark theme. Not in the guideline, which is light-only — but the site already
 * ships one, so removing it would be a visible regression. Built from the same
 * tokens: teal and coral are lifted independently so each still clears AA on
 * the dark ground, and the ground itself keeps the Ink hue rather than going
 * to black.
 *
 * Tokens only. Never style a component from inside this block, or the two
 * themes drift apart the first time someone edits one of them.
 */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;

        --bg-primary: #111A20;
        --bg-secondary: #16222A;
        --bg-card: #18242C;
        --surface-inverse: #E9EEF0;

        --text-primary: #E9EEF0;
        --text-secondary: #B4C2C7;
        --text-muted: #8B9AA1;      /* 5.5:1 on the card */
        --text-inverse: #111A20;

        --border: #26343D;
        --border-strong: #35454F;

        --brand: #5FC7BB;
        --brand-strong: #7BD6CC;
        --brand-stronger: #9BE3DB;
        --brand-bg: rgba(95, 199, 187, 0.14);
        --brand-on: #0A1418;

        --action: #F08A72;
        --action-strong: #F5A492;
        --action-stronger: #F8BFB1;
        --action-bg: rgba(240, 138, 114, 0.16);
        --action-on: #241009;

        --coral: #F08A72;
        --mustard: #F2C94C;
        --mustard-ink: #EFC658;
        --sage: #8FCBB7;
        --sky: #9CD4E6;
        --lavender: #C2BBEA;
        --sand: #1B2730;

        --status-above: #7FCB8A;
        --status-above-bg: rgba(127, 203, 138, 0.14);
        --status-below: #EFA184;
        --status-below-bg: rgba(239, 161, 132, 0.14);
        --status-at: #8B9AA1;
        --status-at-bg: rgba(139, 154, 161, 0.14);

        --chart-1: #5FC7BB;
        --chart-2: #7FCB8A;
        --chart-3: #EFC658;
        --chart-4: #EFA184;
        --chart-5: #8FB4D9;
        --chart-6: #B6A9DD;
        --chart-grid: #26343D;
        --chart-reference: #8B9AA1;

        --series-1: #5FC7BB;
        --series-2: #7FCB8A;
        --series-3: #EFC658;
        --series-4: #EFA184;
        --series-5: #8FB4D9;
        --series-6: #B6A9DD;
        --series-7: #6FD0DC;
        --series-8: #D99BB8;

        --phase-primary: #5FC7BB;
        --phase-primary-bg: rgba(95, 199, 187, 0.16);
        --phase-primary-text: #8ADACF;
        --phase-secondary: #8FB4D9;
        --phase-secondary-bg: rgba(143, 180, 217, 0.16);
        --phase-secondary-text: #AAC8E4;
        --phase-all-through: #7FCB8A;
        --phase-all-through-bg: rgba(127, 203, 138, 0.16);
        --phase-all-through-text: #9AD8A3;
        --phase-post16: #EFC658;
        --phase-post16-bg: rgba(242, 201, 76, 0.16);
        --phase-post16-text: #F2D179;
        --phase-nursery: #B6A9DD;
        --phase-nursery-bg: rgba(182, 169, 221, 0.16);
        --phase-nursery-text: #C8BEE6;

        --surface-sunken: #0C5F58;
        --on-sunken: #FFFFFF;
        --on-sunken-muted: #C9E4DB;
        --on-sunken-faint: #A9D6CA;
        --on-sunken-link: #C7EBF5;

        --medal-gold: #EFC658;
        --medal-silver: #A9B6BC;
        --medal-bronze: #C99070;

        --brand-rgb: 95, 199, 187;
        --action-rgb: 240, 138, 114;
        --coral-rgb: 240, 138, 114;
        --sage-rgb: 143, 203, 183;
        --status-above-rgb: 127, 203, 138;
        --status-below-rgb: 239, 161, 132;
        --ink-rgb: 233, 238, 240;
        --text-inverse-rgb: 17, 26, 32;
        --shadow-rgb: 0, 0, 0;
        --muted-rgb: 139, 154, 161;
        --phase-secondary-rgb: 143, 180, 217;
        --medal-silver-rgb: 169, 182, 188;
        --medal-bronze-rgb: 201, 144, 112;

        /* The artwork is a fixed, bright raster — it cannot be re-graded by
           token the way the drawn version was. The dark theme instead dims it
           in CSS (see .heroArt in HomeView.module.css) and fades it into this
           ground, which is the panel colour rather than the artwork's cream. */
        --hero-ground: #16222A;
        --hero-ground-rgb: 22, 34, 42;

        --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 4px 18px rgba(0, 0, 0, 0.45);
        --shadow-strong: 0 10px 34px rgba(0, 0, 0, 0.55);
        --scrim: rgba(4, 8, 10, 0.65);
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-ui);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    /* dvh (dynamic viewport) accounts for iOS Safari's collapsing toolbar;
       fall back to vh on older engines that don't recognise dvh. */
    min-height: 100vh;
    min-height: 100dvh;
    /* Suppress the iOS Safari grey tap flash — explicit :active states
       below carry the press feedback instead. */
    -webkit-tap-highlight-color: transparent;
}

/* Form controls don't inherit font or colour from their parent — the UA
   supplies its own. Without this they render in the system font at pure
   black, which is nearly invisible against --text-primary in light mode and
   completely invisible on the dark ground. */
input,
select,
textarea,
button {
    font-family: inherit;
    color: inherit;
}

/* Every digit that could line up in a column does. This is a data product;
   proportional numerals in a results table read as amateur. */
/* The interface is mostly figures, so tabular is the default here rather
   than something each component has to remember. Running prose opts back out
   below — proportional figures read better in a sentence. */
.main,
table,
[data-numeric] {
    font-variant-numeric: tabular-nums;
}

/* Prose gets the serif; the interface never does. */
.prose {
    font-family: var(--font-prose);
    font-variant-numeric: normal;
    font-size: var(--step-0);
    line-height: 1.65;
}

/* Provide a baseline press feedback for the most common interactive
   elements — replaces the suppressed default tap highlight. Buttons and
   .btn-* classes carry their own :active states already; this handles
   plain anchors used as inline links and bare button elements. */
@media (hover: none) and (pointer: coarse) {
    a:active,
    button:active {
        opacity: 0.7;
    }
}

/* Reserve space for the fixed mobile bottom tab bar (56px + safe-area inset). */
@media (max-width: 640px) {
    body {
        padding-bottom: calc(56px + env(safe-area-inset-bottom, 0px));
    }
}

/* Skip link — visible only on focus for keyboard users */
.skip-link {
    position: absolute;
    top: -100px;
    left: 1rem;
    z-index: 10000;
    padding: 0.5rem 1rem;
    background: var(--surface-inverse);
    color: var(--text-inverse);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: top 0.15s ease;
}
.skip-link:focus {
    top: 0.5rem;
}

/* Focus indicators — brand hue, visible on both grounds */
:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* ================================================================
   Shared button classes — use these across all components
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    font-family: var(--font-ui);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
    text-decoration: none;
    white-space: nowrap;
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Primary: brand fill — main CTAs (Search, Compare now) */
.btn-primary {
    background: var(--brand);
    color: var(--brand-on);
    border-color: var(--brand);
}
.btn-primary:hover:not(:disabled) {
    background: var(--brand-strong);
    border-color: var(--brand-strong);
}
.btn-primary:active:not(:disabled) {
    background: var(--brand-stronger);
    border-color: var(--brand-stronger);
}

/*
 * Action: coral fill — the one decisive action on a page, and only that.
 *
 * The guideline gives coral to "calls to action, highlights, important
 * buttons" while its own UI-components sheet draws the primary button in
 * teal. Both are honoured by making this a scarce, separate class: teal is
 * the default primary, coral marks the single action a page exists for —
 * the search submit. Use it more than once per screen and it stops meaning
 * anything.
 */
.btn-action {
    background: var(--action);
    color: var(--action-on);
    border-color: var(--action);
}
.btn-action:hover:not(:disabled) {
    background: var(--action-strong);
    border-color: var(--action-strong);
}
.btn-action:active:not(:disabled) {
    background: var(--action-stronger);
    border-color: var(--action-stronger);
}

/* Secondary: brand outline — supporting actions (Add to compare) */
.btn-secondary {
    background: transparent;
    color: var(--brand);
    border: 1px solid var(--brand);
}
.btn-secondary:hover:not(:disabled) {
    background: var(--brand-bg);
}

/* Tertiary: quiet — low-emphasis (View, Clear) */
.btn-tertiary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-tertiary:hover:not(:disabled) {
    background: var(--border);
    color: var(--text-primary);
}

/* Active toggle state — the compare button once a school is on the list */
.btn-active {
    background: var(--brand-bg);
    color: var(--brand);
    border: 1px solid var(--brand);
}
.btn-active:hover:not(:disabled) {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-strong);
}

/* Small variant */
.btn-sm {
    padding: 0.3rem 0.625rem;
    font-size: 0.8125rem;
}

/*
 * Leaflet ships its own palette — a #ddd tile backdrop, #333 attribution text
 * and a #0078A8 link blue that is the most saturated colour anywhere on the
 * site and belongs to no part of this system. Pull the map chrome onto the
 * tokens. This matters most in dark mode, where Leaflet's white attribution
 * bar would otherwise sit on a near-black page.
 *
 * The tiles themselves stay as OSM renders them; only the chrome is ours.
 *
 * Every selector here is prefixed with `html` on purpose. leaflet.css is
 * imported from a client component, so its chunk loads AFTER globals.css; at
 * equal specificity the later sheet wins and these overrides lose silently.
 * The `html` prefix takes them to 0,1,1 so load order stops mattering.
 */
html .leaflet-container {
    background: var(--bg-secondary);
    font-family: var(--font-ui);
}

html .leaflet-control-attribution {
    background: rgba(var(--text-inverse-rgb), 0.82);
    color: var(--text-muted);
}

html .leaflet-control-attribution a {
    color: var(--brand);
}

html .leaflet-bar a {
    background: var(--bg-card);
    color: var(--text-primary);
    border-bottom-color: var(--border);
}

html .leaflet-bar a:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Main content column */
.main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
    min-width: 0;
    overflow-x: clip;
}

@media (max-width: 768px) {
    .main {
        padding: 1rem;
    }
    /* Tighten the rhythm rather than abandon it — the ratio between the
       section gap and the header gap stays the same. */
    :root {
        --section-gap: 2.75rem;
        --section-head-gap: 1.15rem;
    }
}

/* Honour the OS setting. Transitions collapse to near-instant rather than
   zero so state changes still register as changes. */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}