@font-face {
    font-family: "DM Sans";
    src: url("/assets/fonts/dm-sans-latin-wght-normal.woff2") format("woff2");
    font-weight: 100 1000;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "DM Sans";
    src: url("/assets/fonts/dm-sans-latin-wght-italic.woff2") format("woff2");
    font-weight: 100 1000;
    font-style: italic;
    font-display: swap;
}

/* Colours from the Pulse style guide (ECZ_STIJLGIDS_PULSE MAGAZINE_V3, BlackDesk).
   Base palette: 100% black and "basis wit"; pure white is avoided on purpose.
   Every chapter has a theme: a strong PANTONE colour, a lighter tint and a white.
   The reader is one fixed brand surface, so there is no separate dark theme. */
:root {
    --black: #000000;
    --basis-wit: #e5e5da;
    --blue-072: #283480;
    --lila: #d3c4e2;
    --blauw-wit: #ededf7;
    --green-802: #44d62c;
    --lichtblauw: #a0d2f3;
    --groen-wit: #ebf4e9;
    --yellow-803: #ffff00;
    --zacht-groen: #cdd8ae;
    --geel-wit: #fffdee;

    --blue: var(--blue-072);
    --blue-stage: var(--blue-072);
    --paper: var(--basis-wit);
    --ink: var(--black);
    --ink-muted: rgb(0 0 0 / 0.58);
    --yellow: var(--yellow-803);
    --on-blue: var(--basis-wit);
    --on-blue-muted: rgb(229 229 218 / 0.66);
    --surface-hover: rgb(255 255 255 / 0.1);
    --surface-active: rgb(255 255 255 / 0.18);
    --bar-height: 60px;
    --radius: 999px;
    --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
    color-scheme: dark;
}

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

html,
body {
    height: 100%;
    margin: 0;
}

body {
    background: var(--blue-stage);
    color: var(--on-blue);
    font-family: "DM Sans", system-ui, sans-serif;
    font-size: 15px;
    font-weight: 400;
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
}

a {
    color: inherit;
}

:focus-visible {
    outline: 2px solid var(--yellow);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.icon {
    width: 20px;
    height: 20px;
    flex: none;
}

[hidden] {
    display: none !important;
}

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

.app {
    display: grid;
    grid-template-rows: var(--bar-height) minmax(0, 1fr) var(--bar-height);
    height: 100vh;
    height: 100dvh;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    background:
        radial-gradient(ellipse 70% 60% at 50% 48%, rgb(255 255 255 / 0.06) 0%, transparent 100%),
        var(--blue-stage);
    overflow: hidden;
}

.topbar,
.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    min-width: 0;
}

.topbar {
    position: relative;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    flex: none;
    border-radius: 6px;
}

/* Official wordmark from the Pulse logo package (BASISWIT), blur included. */
.brand-logo {
    display: block;
    width: auto;
    height: 30px;
}

.brand-logo-large {
    height: 64px;
}

.brand-meta {
    font-size: 13px;
    font-weight: 300;
    color: var(--on-blue-muted);
}

.crumb {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 0;
    text-align: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    max-width: min(46vw, 640px);
}

.crumb-kicker {
    font-size: 12px;
    font-weight: 300;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--on-blue-muted);
}

.crumb-title {
    margin: 0;
    font-size: 16px;
    font-weight: 400;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.topbar-actions,
.toolbar-end {
    display: flex;
    align-items: center;
    gap: 4px;
}

.toolbar {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
}

.toolbar-end {
    justify-content: flex-end;
}

/* Chapter themes ----------------------------------------------------------- */

/* The style guide's gradients run from the PANTONE colour to the chapter white. */
[data-section="01"] {
    --section-strong: var(--blue-072);
    --section-tint: var(--lila);
    --section-white: var(--blauw-wit);
}

[data-section="02"] {
    --section-strong: var(--green-802);
    --section-tint: var(--lichtblauw);
    --section-white: var(--groen-wit);
}

[data-section="03"] {
    --section-strong: var(--yellow-803);
    --section-tint: var(--zacht-groen);
    --section-white: var(--geel-wit);
}

.section-line {
    display: block;
    width: 72px;
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--section-strong), var(--section-white));
}

.toolbar-start {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 0;
}

.chapter {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    color: var(--on-blue-muted);
    font-size: 13px;
    font-weight: 300;
    white-space: nowrap;
}

.chapter .section-line {
    width: 40px;
    height: 4px;
}

/* On the blue stage chapter 01's line would vanish into the background. */
.chapter[data-section="01"] .section-line {
    background: linear-gradient(90deg, var(--section-tint), var(--section-white));
}

.chapter-title {
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Buttons ------------------------------------------------------------------ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 40px;
    padding: 0 14px;
    border: 0;
    border-radius: var(--radius);
    background: transparent;
    color: inherit;
    font: inherit;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color 160ms ease, transform 160ms var(--ease-out), opacity 160ms ease;
}

.btn:active {
    transform: scale(0.96);
}

.btn:disabled {
    opacity: 0.35;
    cursor: default;
    transform: none;
}

.btn-icon {
    width: 40px;
    padding: 0;
}

.btn-meta {
    font-weight: 300;
    color: var(--on-blue-muted);
    font-variant-numeric: tabular-nums;
}

.btn-solid {
    background: var(--yellow);
    color: var(--ink);
    padding: 0 20px;
    min-height: 48px;
}

@media (hover: hover) and (pointer: fine) {
    .btn:not(:disabled):hover {
        background: var(--surface-hover);
    }

    .btn-solid:hover {
        background: #ffff66;
    }
}

.toolbar-start .btn {
    flex: none;
}

.credit {
    padding: 8px 12px;
    border-radius: 6px;
    color: var(--on-blue-muted);
    font-size: 13px;
    font-weight: 300;
    text-decoration: none;
    white-space: nowrap;
    transition: color 160ms ease;
}

.credit strong {
    font-weight: 700;
    color: var(--on-blue);
}

@media (hover: hover) and (pointer: fine) {
    .credit:hover {
        color: var(--on-blue);
    }

    .credit:hover strong {
        text-decoration: underline;
        text-underline-offset: 3px;
    }
}

/* Pager -------------------------------------------------------------------- */

.pager {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pager-label {
    min-width: 9.5em;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.pager-total {
    color: var(--on-blue-muted);
}

/* Stage + book ------------------------------------------------------------- */

.stage {
    position: relative;
    min-height: 0;
}

/* .stage > .book outranks the .stf__parent rule page-flip injects after this file. */
.stage > .book {
    position: absolute;
    inset: 12px 84px 20px;
    /* page-flip sets these inline from its settings; the stage decides instead. */
    min-width: 0 !important;
    min-height: 0 !important;
    opacity: 0;
    transition: opacity 400ms ease;
}

.book.is-ready {
    opacity: 1;
}

.book .stf__wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.book .page:not(.stf__item) {
    display: none;
}

.page {
    background: var(--paper);
    overflow: hidden;
    box-shadow: 0 18px 40px -12px rgb(10 14 50 / 0.55);
}

.page img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-user-drag: none;
}

/* Spine shading where two pages meet. */
.page.--left::after,
.page.--right::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 7%;
    pointer-events: none;
}

.page.--left::after {
    right: 0;
    background: linear-gradient(to left, rgb(0 0 0 / 0.16), rgb(0 0 0 / 0.04) 40%, transparent);
}

.page.--right::after {
    left: 0;
    background: linear-gradient(to right, rgb(0 0 0 / 0.16), rgb(0 0 0 / 0.04) 40%, transparent);
}

.loading {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 36px;
    height: 36px;
    margin: -18px 0 0 -18px;
    border: 2px solid rgb(255 255 255 / 0.18);
    border-top-color: var(--on-blue);
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
}

.book.is-ready + .loading {
    display: none;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.nav {
    position: absolute;
    top: 50%;
    z-index: 2;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    margin-top: -26px;
    border: 0;
    border-radius: 50%;
    background: rgb(255 255 255 / 0.08);
    color: var(--on-blue);
    cursor: pointer;
    transition: background-color 160ms ease, transform 160ms var(--ease-out), opacity 200ms ease;
}

.nav .icon {
    width: 26px;
    height: 26px;
}

.nav-prev {
    left: 16px;
}

.nav-next {
    right: 16px;
}

.nav:active {
    transform: scale(0.94);
}

.nav:disabled {
    opacity: 0;
    pointer-events: none;
}

@media (hover: hover) and (pointer: fine) {
    .nav:hover {
        background: var(--surface-active);
    }
}

.flat {
    position: absolute;
    inset: 0;
    overflow-y: auto;
    padding: 16px;
    display: grid;
    gap: 16px;
    justify-items: center;
}

.flat img {
    width: min(100%, 720px);
    height: auto;
}

/* Table of contents -------------------------------------------------------- */

.menu {
    position: fixed;
    inset: 0;
    z-index: 20;
}

.menu-backdrop {
    position: absolute;
    inset: 0;
    background: rgb(10 13 34 / 0.55);
    animation: fade-in 200ms ease both;
}

.menu-panel {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    width: min(420px, 92vw);
    background: var(--paper);
    color: var(--ink);
    color-scheme: light;
    box-shadow: 24px 0 60px -20px rgb(10 14 50 / 0.5);
    animation: slide-in 260ms var(--ease-out) both;
}

.menu.is-closing .menu-backdrop {
    animation: fade-out 160ms ease both;
}

.menu.is-closing .menu-panel {
    animation: slide-out 180ms ease-in both;
}

@keyframes fade-in {
    from { opacity: 0; }
}

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

@keyframes slide-in {
    from { transform: translateX(-100%); }
}

@keyframes slide-out {
    to { transform: translateX(-100%); }
}

.menu-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: max(14px, env(safe-area-inset-top)) 12px 6px 24px;
}

.menu-title {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.menu-panel .btn:hover {
    background: rgb(0 0 0 / 0.07);
}

.menu-body {
    flex: 1;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 8px 12px max(24px, env(safe-area-inset-bottom));
}

.menu-cta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 4px 0 12px;
    padding: 14px 16px;
    border-radius: 14px;
    background: var(--blue);
    color: var(--on-blue);
    text-decoration: none;
    transition: background-color 160ms ease;
}

.menu-cta:hover {
    background: #323f96;
}

.menu-cta > span {
    display: flex;
    flex-direction: column;
}

.menu-cta strong {
    font-weight: 700;
}

.menu-cta span span {
    font-size: 13px;
    font-weight: 300;
    color: var(--on-blue-muted);
}

.menu-extras {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 4px 0 8px;
    padding: 0 12px;
    list-style: none;
}

.menu-extras a {
    display: inline-flex;
    gap: 8px;
    padding: 6px 12px;
    border-radius: var(--radius);
    background: rgb(0 0 0 / 0.06);
    text-decoration: none;
    font-size: 14px;
    transition: background-color 160ms ease;
}

.menu-extras a:hover {
    background: rgb(0 0 0 / 0.11);
}

.menu-extras span {
    color: var(--ink-muted);
    font-variant-numeric: tabular-nums;
}

.menu-section + .menu-section {
    margin-top: 8px;
}

/* Mirrors the magazine's own table of contents: "01 ───" above a bold title. */
.menu-section-title {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 20px 12px 8px;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.15;
}

.menu-section-head {
    display: flex;
    align-items: center;
    gap: 10px;
}

.menu-section-nr {
    font-size: 26px;
    font-weight: 300;
}

.menu-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.menu-row {
    position: relative;
    display: flex;
    align-items: center;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
    min-width: 0;
    padding: 8px 12px;
    border-radius: 12px;
    text-decoration: none;
    transition: background-color 160ms ease;
}

.menu-item:hover {
    background: rgb(0 0 0 / 0.05);
}

.menu-item img {
    width: 48px;
    height: 60px;
    flex: none;
    border-radius: 3px;
    background: var(--paper);
    box-shadow: 0 1px 3px rgb(0 0 0 / 0.25);
    object-fit: cover;
}

.menu-item-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.menu-item-title {
    font-weight: 400;
    line-height: 1.3;
    text-wrap: pretty;
}

.menu-item-meta {
    font-size: 13px;
    font-weight: 300;
    color: var(--ink-muted);
}

.menu-item[aria-current] {
    background: var(--section-white);
    box-shadow: inset 4px 0 0 var(--section-strong);
}

.menu-item-link {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    margin-right: 4px;
    border-radius: 50%;
    color: var(--ink-muted);
    transition: background-color 160ms ease, color 160ms ease;
}

.menu-item-link .icon {
    width: 18px;
    height: 18px;
}

.menu-item-link:hover {
    background: rgb(0 0 0 / 0.07);
    color: var(--ink);
}

/* Zoom --------------------------------------------------------------------- */

.zoom {
    position: fixed;
    inset: 0;
    z-index: 30;
    background: rgb(16 21 52 / 0.97);
    animation: fade-in 180ms ease both;
}

.zoom-viewport {
    position: absolute;
    inset: 0;
    overflow: auto;
    overscroll-behavior: contain;
    cursor: grab;
    touch-action: pan-x pan-y;
}

.zoom-viewport.is-dragging {
    cursor: grabbing;
}

.zoom-canvas {
    display: flex;
    margin: auto;
    padding: 24px;
    width: max-content;
    min-width: 100%;
    min-height: 100%;
    align-items: center;
    justify-content: center;
}

.zoom-canvas img {
    display: block;
    flex: none;
    user-select: none;
    -webkit-user-drag: none;
    background: var(--paper);
}

.zoom-controls {
    position: absolute;
    right: max(16px, env(safe-area-inset-right));
    bottom: max(16px, env(safe-area-inset-bottom));
    display: flex;
    gap: 4px;
    padding: 4px;
    border-radius: var(--radius);
    background: rgb(40 52 128 / 0.94);
    box-shadow: 0 10px 30px rgb(0 0 0 / 0.35);
}

/* Toast -------------------------------------------------------------------- */

.toast {
    position: fixed;
    left: 50%;
    bottom: calc(var(--bar-height) + 16px + env(safe-area-inset-bottom));
    z-index: 40;
    padding: 10px 18px;
    border-radius: var(--radius);
    background: var(--paper);
    color: var(--ink);
    font-weight: 500;
    box-shadow: 0 10px 30px rgb(0 0 0 / 0.3);
    transform: translate(-50%, 12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 220ms var(--ease-out);
}

.toast.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* 404 ---------------------------------------------------------------------- */

.notfound {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 16px;
    min-height: 100%;
    max-width: 560px;
    margin: 0 auto;
    padding: 32px 16px;
}

.notfound h1 {
    margin: 24px 0 0;
    font-size: clamp(32px, 6vw, 48px);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.notfound p {
    margin: 0 0 8px;
    color: var(--on-blue-muted);
    font-size: 17px;
}

/* Small screens ------------------------------------------------------------ */

@media (max-width: 900px) {
    .brand-meta,
    .topbar .btn-meta,
    .chapter {
        display: none;
    }

    .stage > .book {
        inset: 8px 68px 12px;
    }

    .nav-prev {
        left: 8px;
    }

    .nav-next {
        right: 8px;
    }
}

@media (max-width: 640px) {
    :root {
        --bar-height: 56px;
    }

    .topbar,
    .toolbar {
        padding: 0 6px;
        gap: 4px;
    }

    .brand {
        padding-left: 8px;
    }

    .brand-logo {
        height: 24px;
    }

    .topbar .btn-label,
    .toolbar .btn-label {
        display: none;
    }

    .topbar .btn-text {
        width: 40px;
        padding: 0;
    }

    .crumb {
        position: static;
        transform: none;
        flex: 1;
        align-items: flex-start;
        text-align: left;
        max-width: none;
        padding-left: 8px;
    }

    .crumb-title {
        font-size: 14px;
    }

    .stage > .book {
        inset: 6px 8px;
    }

    .nav {
        display: none;
    }

    .pager-label {
        min-width: 7.5em;
    }

    .pager-total,
    .topbar [data-action="fullscreen"] {
        display: none !important;
    }

    /* Two short lines fit beside the pager where one long line does not. */
    .credit {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        padding: 6px;
        font-size: 11px;
        line-height: 1.2;
    }

    .credit strong {
        font-size: 13px;
    }
}

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