:root {
    --sprint-gold: #d8ad4a;
    --sprint-gold-light: #f4d889;
    --sprint-red: #e33d46;
    --sprint-green: #23c16b;
    --sprint-blue: #4aa3ff;
    --sprint-panel: #151515;
    --sprint-panel-soft: #1d1d1d;
    --sprint-line: rgba(255, 255, 255, .13);
    --sprint-muted: #b9b9b9;
}

.sprint-timer-page {
    background: #090909;
}

.sprint-timer button,
.sprint-dialog button {
    font: inherit;
}

.sprint-intro {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: grid;
    place-items: center;
    padding: 24px;
    background: radial-gradient(circle at 50% 35%, #2d230f, #080808 55%);
    color: #fff;
    transition: opacity .35s ease, visibility .35s ease;
}

.sprint-intro[hidden] {
    display: none;
}

.sprint-intro.is-leaving {
    opacity: 0;
    visibility: hidden;
}

.sprint-intro__content {
    width: min(520px, 100%);
    text-align: center;
}

.sprint-intro img {
    width: min(260px, 70vw);
    height: auto;
}

.sprint-intro__app {
    margin-left: 7px;
    color: var(--sprint-gold);
    font: 900 1.6rem/1 "Barlow Condensed", sans-serif;
}

.sprint-intro h1 {
    margin: 30px 0 4px;
    font: 900 clamp(2.8rem, 9vw, 5.2rem)/.92 "Barlow Condensed", sans-serif;
    text-transform: uppercase;
    letter-spacing: -.02em;
}

.sprint-intro p {
    margin: 12px 0 30px;
    color: var(--sprint-gold-light);
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.sprint-intro__progress {
    height: 4px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, .13);
}

.sprint-intro__progress span {
    display: block;
    width: 100%;
    height: 100%;
    background: var(--sprint-gold);
    transform-origin: left;
    animation: sprint-intro-progress 5s linear forwards;
}

@keyframes sprint-intro-progress {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

.sprint-timer {
    color: #fff;
    background:
        radial-gradient(circle at 14% 8%, rgba(216, 173, 74, .10), transparent 30rem),
        #090909;
    padding: 34px 18px 72px;
}

.sprint-shell {
    width: min(1180px, 100%);
    margin: 0 auto;
}

.sprint-heading {
    display: flex;
    justify-content: space-between;
    gap: 28px;
    align-items: flex-end;
    margin-bottom: 20px;
}

.sprint-eyebrow,
.sprint-section-heading span {
    margin: 0 0 6px;
    color: var(--sprint-gold);
    font: 800 .76rem/1.2 Inter, sans-serif;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.sprint-heading h1 {
    margin: 0;
    font: 900 clamp(2.7rem, 6vw, 5.2rem)/.9 "Barlow Condensed", sans-serif;
    letter-spacing: -.025em;
    text-transform: uppercase;
}

.sprint-heading p:not(.sprint-eyebrow) {
    max-width: 680px;
    margin: 14px 0 0;
    color: var(--sprint-muted);
    font-size: 1rem;
}

.sprint-heading__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.sprint-heading__actions button,
.sprint-secondary-controls button,
.sprint-section-heading button {
    min-height: 44px;
    border: 1px solid var(--sprint-line);
    border-radius: 10px;
    background: #202020;
    color: #fff;
    padding: 10px 14px;
    cursor: pointer;
    font-weight: 800;
}

.sprint-heading__actions button:hover,
.sprint-secondary-controls button:hover,
.sprint-section-heading button:hover {
    border-color: var(--sprint-gold);
}

.sprint-heading__actions button:focus-visible,
.sprint-secondary-controls button:focus-visible,
.sprint-section-heading button:focus-visible,
.sprint-mode button:focus-visible,
.sprint-starter-options button:focus-visible,
.sprint-control:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 3px;
}

.sprint-status-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.sprint-status {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 6px 10px;
    border: 1px solid var(--sprint-line);
    border-radius: 999px;
    background: rgba(255, 255, 255, .04);
    color: #d9d9d9;
    font-size: .78rem;
    font-weight: 700;
}

.sprint-status--attention {
    border-color: rgba(244, 216, 137, .45);
    color: var(--sprint-gold-light);
}

.sprint-status--ready {
    border-color: rgba(35, 193, 107, .5);
    color: #88edb6;
}

.sprint-mode {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 14px;
}

.sprint-mode button,
.sprint-starter-options button {
    min-height: 86px;
    padding: 16px 18px;
    border: 1px solid var(--sprint-line);
    border-radius: 14px;
    background: var(--sprint-panel);
    color: #fff;
    text-align: left;
    cursor: pointer;
}

.sprint-mode button[aria-pressed="true"],
.sprint-starter-options button[aria-pressed="true"] {
    border-color: var(--sprint-gold);
    background: linear-gradient(135deg, rgba(216, 173, 74, .20), rgba(216, 173, 74, .05));
    box-shadow: inset 0 0 0 1px rgba(216, 173, 74, .2);
}

.sprint-mode strong,
.sprint-starter-options strong {
    display: block;
    font-size: 1rem;
}

.sprint-mode span,
.sprint-starter-options span {
    display: block;
    margin-top: 5px;
    color: var(--sprint-muted);
    font-size: .82rem;
    line-height: 1.35;
}

.sprint-workspace {
    padding: 16px;
    border: 1px solid var(--sprint-line);
    border-radius: 20px;
    background: #101010;
    box-shadow: 0 22px 70px rgba(0, 0, 0, .28);
}

.sprint-display {
    position: relative;
    overflow: hidden;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(216, 173, 74, .26);
    border-radius: 16px;
    background:
        linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px),
        radial-gradient(circle at 50% 35%, #25200f, #050505 63%);
    background-size: 28px 28px, 28px 28px, auto;
    text-align: center;
}

.sprint-display__topline {
    position: absolute;
    top: 15px;
    left: 16px;
    right: 16px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    color: #d9d9d9;
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.sprint-display__time {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 42px 10px 0;
    color: #fff;
    font: 900 clamp(4rem, 12vw, 9.2rem)/.82 "Barlow Condensed", sans-serif;
    letter-spacing: -.045em;
    font-variant-numeric: tabular-nums;
    text-shadow: 0 0 30px rgba(255, 255, 255, .12);
}

.sprint-display__units {
    position: relative;
    z-index: 2;
    margin-top: 15px;
    color: #979797;
    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.sprint-display__cue {
    position: relative;
    z-index: 2;
    min-height: 36px;
    margin-top: 14px;
    color: var(--sprint-gold-light);
    font: 900 clamp(1.2rem, 3vw, 1.75rem)/1 "Barlow Condensed", sans-serif;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.sprint-display__brand {
    position: absolute;
    z-index: 2;
    right: 14px;
    bottom: 11px;
    display: flex;
    align-items: center;
    opacity: .78;
}

.sprint-display__brand img {
    width: 88px;
    height: auto;
}

.sprint-display__brand span {
    color: var(--sprint-gold);
    font: 900 .72rem/1 "Barlow Condensed", sans-serif;
}

.sprint-flash {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: #fff;
    opacity: 0;
}

.sprint-flash.is-active {
    animation: sprint-start-flash .42s ease-out;
}

@keyframes sprint-start-flash {
    0% { opacity: .96; }
    28% { opacity: .72; }
    100% { opacity: 0; }
}

.sprint-professional {
    margin-top: 14px;
    padding: 16px;
    border: 1px solid var(--sprint-line);
    border-radius: 14px;
    background: var(--sprint-panel);
}

.sprint-section-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
}

.sprint-section-heading h2 {
    margin: 0;
    font: 800 1.35rem/1.05 "Barlow Condensed", sans-serif;
    text-transform: uppercase;
}

.sprint-section-heading > strong {
    display: grid;
    place-items: center;
    min-width: 38px;
    min-height: 38px;
    border-radius: 999px;
    background: var(--sprint-gold);
    color: #111;
}

.sprint-starter-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 14px;
}

.sprint-starter-options button {
    min-height: 76px;
}

.sprint-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    color: #dedede;
    font-size: .88rem;
    font-weight: 700;
}

.sprint-toggle input {
    width: 22px;
    height: 22px;
    accent-color: var(--sprint-gold);
}

.sprint-audio-help {
    margin: 10px 0 0;
    color: #a9a9a9;
    font-size: .78rem;
    line-height: 1.5;
}

.sprint-controls {
    display: grid;
    grid-template-columns: 1.35fr 1fr 1.35fr;
    gap: 10px;
    margin-top: 14px;
}

.sprint-control {
    min-height: 64px;
    border: 0;
    border-radius: 13px;
    padding: 12px;
    color: #fff;
    cursor: pointer;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .035em;
}

.sprint-control:disabled {
    cursor: not-allowed;
    filter: grayscale(.8);
    opacity: .35;
}

.sprint-control--start { background: var(--sprint-green); color: #061a0f; }
.sprint-control--split { background: var(--sprint-blue); color: #061524; }
.sprint-control--finish { background: var(--sprint-red); }
.sprint-control--fire { background: var(--sprint-gold); color: #171004; grid-column: span 2; }
.sprint-control--cancel { background: #454545; }

.sprint-secondary-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.sprint-secondary-controls button:disabled,
.sprint-section-heading button:disabled {
    cursor: not-allowed;
    opacity: .35;
}

.sprint-keyboard-help {
    margin: 11px 0 0;
    color: #8f8f8f;
    text-align: center;
    font-size: .72rem;
}

.sprint-keyboard-help kbd {
    display: inline-block;
    min-width: 24px;
    border: 1px solid #555;
    border-bottom-width: 2px;
    border-radius: 4px;
    background: #252525;
    color: #fff;
    padding: 2px 5px;
}

.sprint-information-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 14px;
}

.sprint-card,
.sprint-accuracy {
    padding: 18px;
    border: 1px solid var(--sprint-line);
    border-radius: 16px;
    background: var(--sprint-panel);
}

.sprint-splits {
    max-height: 310px;
    overflow: auto;
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
}

.sprint-splits li:not(.sprint-empty) {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    border-top: 1px solid var(--sprint-line);
    color: #ddd;
    font-size: .84rem;
}

.sprint-splits li strong,
.sprint-result__time,
.sprint-history__time {
    color: #fff;
    font-variant-numeric: tabular-nums;
}

.sprint-splits li small {
    color: #929292;
}

.sprint-empty {
    margin: 16px 0 0;
    color: #8f8f8f;
    font-size: .86rem;
}

.sprint-result {
    margin-top: 15px;
}

.sprint-result__time {
    display: block;
    font: 900 clamp(2.8rem, 7vw, 4.8rem)/1 "Barlow Condensed", sans-serif;
    letter-spacing: -.03em;
}

.sprint-result__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 12px;
}

.sprint-result__meta span,
.sprint-history__meta span {
    padding: 5px 8px;
    border-radius: 999px;
    background: #292929;
    color: #cfcfcf;
    font-size: .7rem;
    font-weight: 700;
}

.sprint-history-card {
    margin-top: 14px;
}

.sprint-history {
    display: grid;
    gap: 8px;
    margin-top: 14px;
}

.sprint-history__item {
    display: grid;
    grid-template-columns: minmax(130px, auto) 1fr auto;
    align-items: center;
    gap: 16px;
    padding: 12px;
    border: 1px solid var(--sprint-line);
    border-radius: 11px;
    background: #111;
}

.sprint-history__time {
    font: 900 1.6rem/1 "Barlow Condensed", sans-serif;
}

.sprint-history__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.sprint-history__item time {
    color: #929292;
    font-size: .72rem;
    text-align: right;
}

.sprint-accuracy {
    margin-top: 14px;
    border-color: rgba(216, 173, 74, .25);
    background: rgba(216, 173, 74, .07);
}

.sprint-accuracy h2 {
    margin: 0;
    color: var(--sprint-gold-light);
    font-size: .95rem;
}

.sprint-accuracy p {
    margin: 7px 0 0;
    color: #c5c5c5;
    font-size: .82rem;
    line-height: 1.55;
}

.sprint-toast {
    position: fixed;
    z-index: 9000;
    left: 50%;
    bottom: calc(24px + env(safe-area-inset-bottom));
    transform: translate(-50%, 20px);
    visibility: hidden;
    max-width: calc(100vw - 32px);
    padding: 11px 15px;
    border: 1px solid rgba(216, 173, 74, .45);
    border-radius: 10px;
    background: #181818;
    color: #fff;
    box-shadow: 0 12px 38px rgba(0, 0, 0, .5);
    opacity: 0;
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
    font-size: .82rem;
    font-weight: 700;
}

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

.sprint-dialog {
    width: min(450px, calc(100% - 28px));
    border: 1px solid #474747;
    border-radius: 16px;
    background: #171717;
    color: #fff;
    padding: 0;
}

.sprint-dialog::backdrop {
    background: rgba(0, 0, 0, .78);
}

.sprint-dialog form {
    padding: 22px;
}

.sprint-dialog h2 {
    margin: 0;
    font: 800 1.65rem/1 "Barlow Condensed", sans-serif;
    text-transform: uppercase;
}

.sprint-dialog p {
    color: #bdbdbd;
    line-height: 1.5;
}

.sprint-dialog form > div {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.sprint-dialog button {
    min-height: 44px;
    border: 1px solid #555;
    border-radius: 9px;
    background: #2a2a2a;
    color: #fff;
    padding: 9px 14px;
    cursor: pointer;
    font-weight: 800;
}

.sprint-dialog button.danger {
    border-color: var(--sprint-red);
    background: var(--sprint-red);
}

.sprint-fullscreen-footer {
    display: none;
}

.sprint-timer:fullscreen {
    overflow: auto;
    width: 100%;
    min-height: 100%;
    padding: 18px 24px calc(94px + env(safe-area-inset-bottom));
    background: #050505;
}

.sprint-timer:fullscreen .sprint-shell {
    width: min(1500px, 100%);
}

.sprint-timer:fullscreen .sprint-heading,
.sprint-timer:fullscreen .sprint-status-row,
.sprint-timer:fullscreen .sprint-mode,
.sprint-timer:fullscreen .sprint-information-grid,
.sprint-timer:fullscreen .sprint-history-card,
.sprint-timer:fullscreen .sprint-accuracy,
.sprint-timer:fullscreen .sprint-keyboard-help,
.sprint-timer:fullscreen .sprint-professional {
    display: none !important;
}

.sprint-timer:fullscreen .sprint-workspace {
    border: 0;
    padding: 0;
    background: transparent;
    box-shadow: none;
}

.sprint-timer:fullscreen .sprint-display {
    min-height: min(64vh, 620px);
}

.sprint-timer:fullscreen .sprint-display__time {
    font-size: clamp(6rem, 18vw, 15rem);
}

.sprint-timer:fullscreen .sprint-controls {
    max-width: 1000px;
    margin: 16px auto 0;
}

.sprint-timer:fullscreen .sprint-secondary-controls {
    margin-top: 10px;
}

.sprint-timer:fullscreen .sprint-fullscreen-footer {
    position: fixed;
    z-index: 20;
    left: 0;
    right: 0;
    bottom: 0;
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    border-top: 1px solid rgba(216, 173, 74, .28);
    background: #0d0d0d;
    color: #bdbdbd;
    font-size: .76rem;
}

.sprint-fullscreen-footer img {
    width: 86px;
    height: auto;
}

.sprint-fullscreen-footer__app {
    margin-left: -10px;
    color: var(--sprint-gold);
    font-weight: 900;
}

.sprint-fullscreen-footer strong {
    color: #fff;
}

@media (max-width: 760px) {
    .sprint-timer {
        padding: 20px 10px 48px;
    }

    .sprint-heading {
        display: block;
    }

    .sprint-heading__actions {
        justify-content: flex-start;
        margin-top: 16px;
    }

    .sprint-heading h1 {
        font-size: clamp(2.8rem, 14vw, 4.2rem);
    }

    .sprint-mode,
    .sprint-starter-options,
    .sprint-information-grid {
        grid-template-columns: 1fr;
    }

    .sprint-mode button {
        min-height: 70px;
    }

    .sprint-workspace {
        padding: 9px;
        border-radius: 15px;
    }

    .sprint-display {
        min-height: 260px;
    }

    .sprint-display__time {
        font-size: clamp(3.6rem, 19vw, 5.5rem);
    }

    .sprint-controls {
        grid-template-columns: 1fr 1fr;
    }

    .sprint-control--start,
    .sprint-control--fire {
        grid-column: 1 / -1;
    }

    .sprint-control {
        min-height: 58px;
    }

    .sprint-history__item {
        grid-template-columns: 1fr auto;
    }

    .sprint-history__meta {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .sprint-history__item time {
        grid-column: 2;
        grid-row: 1;
    }

    .sprint-keyboard-help {
        display: none;
    }

    .sprint-timer:fullscreen {
        padding: 8px 8px calc(84px + env(safe-area-inset-bottom));
    }

    .sprint-timer:fullscreen .sprint-display {
        min-height: 58vh;
    }

    .sprint-timer:fullscreen .sprint-display__time {
        font-size: clamp(4.5rem, 22vw, 8rem);
    }

    .sprint-timer:fullscreen .sprint-fullscreen-footer {
        min-height: 68px;
        gap: 7px;
        font-size: .65rem;
    }

    .sprint-timer:fullscreen .sprint-fullscreen-footer strong {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .sprint-intro,
    .sprint-toast {
        transition: none;
    }

    .sprint-intro__progress span {
        animation: none;
    }

    .sprint-flash.is-active {
        animation: none;
        opacity: .25;
    }
}

@media print {
    .sprint-intro,
    .sprint-heading__actions,
    .sprint-mode,
    .sprint-professional,
    .sprint-controls,
    .sprint-secondary-controls,
    .sprint-keyboard-help,
    .sprint-history-card,
    .sprint-toast,
    .sprint-dialog {
        display: none !important;
    }

    .sprint-timer {
        color: #111;
        background: #fff;
    }

    .sprint-display,
    .sprint-card,
    .sprint-accuracy {
        break-inside: avoid;
    }
}