* {
    box-sizing: border-box;
}

:root {
    --bg: #f5f5f7;
    --surface: rgba(255,255,255,.82);
    --surface-solid: #ffffff;
    --text: #1d1d1f;
    --muted: #6e6e73;
    --line: rgba(0,0,0,.07);
    --blue: #0071e3;
    --green: #16803c;
    --red: #d92d20;
    --shadow: 0 24px 80px rgba(0,0,0,.07);
}

html {
    min-height: 100%;
    background: var(--bg);
}

body {
    margin: 0;
    min-height: 100vh;
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "SF Pro Display",
        "SF Pro Text",
        "Segoe UI",
        sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 50% -20%, #ffffff 0, #f5f5f7 45%);
    -webkit-font-smoothing: antialiased;
}

button,
input,
select {
    font: inherit;
}

button {
    cursor: pointer;
}

#app {
    min-height: 100vh;
}

.topbar {
    width: min(1120px, calc(100% - 48px));
    height: 78px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .16em;
}

.brand-mark {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--text);
}

.period-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 13px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,.6);
    border-radius: 999px;
    font-size: 12px;
    color: var(--muted);
    backdrop-filter: blur(20px);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
}

main {
    width: min(1120px, calc(100% - 48px));
    margin: auto;
}

.screen {
    display: none;
    min-height: calc(100vh - 78px);
    padding: 70px 0 80px;
    animation: appear .35s ease;
}

.screen.active {
    display: block;
}

@keyframes appear {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero {
    max-width: 850px;
    padding-top: 9vh;
}

.eyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .16em;
    color: var(--muted);
}

.hero h1 {
    margin: 18px 0 22px;
    font-size: clamp(48px, 7vw, 82px);
    line-height: .98;
    letter-spacing: -.055em;
    font-weight: 700;
}

.hero h1 span {
    color: #86868b;
}

.hero-copy {
    max-width: 600px;
    margin: 0;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.55;
}

.hero-actions {
    display: flex;
    gap: 12px;
    margin-top: 38px;
    flex-wrap: wrap;
}

.primary-button,
.secondary-button {
    min-height: 48px;
    padding: 0 21px;
    border-radius: 999px;
    border: 0;
    font-size: 14px;
    font-weight: 600;
    transition: .2s ease;
}

.primary-button {
    color: #fff;
    background: var(--text);
    box-shadow: 0 8px 24px rgba(0,0,0,.12);
}

.primary-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 30px rgba(0,0,0,.16);
}

.primary-button span {
    margin-left: 15px;
    font-size: 17px;
}

.secondary-button {
    color: var(--text);
    background: rgba(255,255,255,.7);
    border: 1px solid var(--line);
}

.secondary-button:hover {
    background: #fff;
}

.home-foot {
    display: flex;
    gap: 60px;
    margin-top: 14vh;
    padding-top: 25px;
    border-top: 1px solid var(--line);
}

.home-foot div {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.mini-label {
    font-size: 9px;
    letter-spacing: .14em;
    color: #8b8b91;
    font-weight: 700;
}

.home-foot strong {
    font-size: 12px;
    font-weight: 500;
}

.screen-heading {
    display: flex;
    align-items: flex-start;
    gap: 22px;
    margin-bottom: 45px;
}

.back-button {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: rgba(255,255,255,.7);
    font-size: 17px;
    color: var(--text);
}

.screen-heading h2 {
    margin: 8px 0 7px;
    font-size: clamp(36px, 5vw, 58px);
    letter-spacing: -.045em;
    line-height: 1;
}

.screen-heading p {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.metric-card {
    min-height: 180px;
    padding: 27px;
    border-radius: 24px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.metric-card span {
    color: var(--muted);
    font-size: 13px;
}

.metric-card strong {
    font-size: 36px;
    letter-spacing: -.04em;
}

.metric-card small {
    color: var(--muted);
    font-size: 12px;
}

.section-label {
    margin: 42px 0 15px;
    color: var(--muted);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.business-card {
    padding: 25px;
    border-radius: 24px;
    background: var(--surface);
    border: 1px solid var(--line);
}

.business-card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.business-card h3 {
    margin: 0;
    font-size: 20px;
    letter-spacing: -.025em;
}

.business-card .margin {
    font-size: 12px;
    color: var(--muted);
}

.business-value {
    margin: 30px 0 20px;
    font-size: 32px;
    font-weight: 600;
    letter-spacing: -.04em;
}

.business-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.business-detail {
    padding-top: 13px;
    border-top: 1px solid var(--line);
}

.business-detail span {
    display: block;
    font-size: 10px;
    color: var(--muted);
    margin-bottom: 5px;
}

.business-detail strong {
    font-size: 13px;
}

.overview-actions {
    margin-top: 38px;
}

.loading-card {
    height: 180px;
    border-radius: 24px;
    background: linear-gradient(
        100deg,
        #eeeeef 20%,
        #f7f7f8 40%,
        #eeeeef 60%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.loading-card.large {
    height: 240px;
}

@keyframes shimmer {
    to {
        background-position: -200% 0;
    }
}

.scenario-name-wrap {
    max-width: 650px;
    margin-bottom: 35px;
}

.scenario-name-wrap label {
    display: block;
    margin-bottom: 10px;
    color: var(--muted);
    font-size: 12px;
}

.scenario-name-wrap input {
    width: 100%;
    border: 0;
    border-bottom: 1px solid #c9c9cc;
    padding: 10px 0 14px;
    outline: none;
    background: transparent;
    color: var(--text);
    font-size: 24px;
    letter-spacing: -.025em;
}

.scenario-name-wrap input:focus {
    border-color: var(--text);
}

.change-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 13px;
}

.change-card {
    min-height: 180px;
    padding: 22px;
    text-align: left;
    border-radius: 23px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,.72);
    transition: .2s ease;
}

.change-card:hover {
    transform: translateY(-3px);
    background: #fff;
    box-shadow: var(--shadow);
}

.change-icon {
    display: block;
    margin-bottom: 48px;
    font-size: 28px;
    font-weight: 300;
}

.change-card strong {
    display: block;
    font-size: 17px;
    margin-bottom: 5px;
}

.change-card small {
    color: var(--muted);
    font-size: 11px;
}

.change-editor {
    max-width: 650px;
    margin-top: 25px;
    padding: 28px;
    border-radius: 26px;
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 28px;
}

.editor-header h3 {
    margin: 7px 0 0;
    font-size: 27px;
    letter-spacing: -.035em;
}

.close-editor {
    border: 0;
    background: #f2f2f4;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 20px;
    color: var(--muted);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 12px;
}

.form-group input,
.form-group select {
    width: 100%;
    min-height: 48px;
    padding: 0 14px;
    border: 1px solid #d8d8dc;
    border-radius: 13px;
    background: #fafafa;
    color: var(--text);
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: #888;
    background: #fff;
}

.two-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.full {
    width: 100%;
    margin-top: 8px;
}

.hidden {
    display: none !important;
}

.pending-section {
    max-width: 760px;
    margin-top: 42px;
}

.pending-change {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 17px 19px;
    margin-bottom: 8px;
    border-radius: 15px;
    background: rgba(255,255,255,.75);
    border: 1px solid var(--line);
}

.pending-change-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pending-change-info strong {
    font-size: 13px;
}

.pending-change-info span {
    color: var(--muted);
    font-size: 11px;
}

.remove-change {
    width: 28px;
    height: 28px;
    border: 0;
    border-radius: 50%;
    background: #f1f1f3;
    color: var(--muted);
}

.result-top {
    display: flex;
    align-items: center;
    gap: 20px;
}

.result-hero {
    padding: 75px 0 55px;
}

.result-label {
    font-size: 11px;
    letter-spacing: .14em;
    font-weight: 700;
    color: var(--muted);
}

.result-value {
    margin-top: 13px;
    font-size: clamp(58px, 9vw, 110px);
    line-height: .95;
    letter-spacing: -.065em;
    font-weight: 700;
}

.result-impact {
    margin-top: 17px;
    display: inline-block;
    padding: 8px 12px;
    border-radius: 999px;
    background: #eaf7ed;
    color: var(--green);
    font-size: 13px;
    font-weight: 600;
}

.result-impact.negative {
    background: #fff0ef;
    color: var(--red);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 13px;
}

.result-card {
    padding: 23px;
    min-height: 155px;
    border-radius: 22px;
    background: rgba(255,255,255,.78);
    border: 1px solid var(--line);
}

.result-card span {
    display: block;
    color: var(--muted);
    font-size: 12px;
}

.result-card strong {
    display: block;
    margin: 22px 0 7px;
    font-size: 29px;
    letter-spacing: -.04em;
}

.result-card small {
    color: var(--muted);
    font-size: 11px;
}

.comparison {
    margin-top: 30px;
    border-top: 1px solid var(--line);
}

.comparison-header,
.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.comparison-header {
    padding: 16px 0 10px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .12em;
}

.comparison-row {
    padding: 15px 0;
    border-top: 1px solid var(--line);
    font-size: 14px;
}

.comparison-row span:last-child {
    font-weight: 600;
}

.result-actions {
    display: flex;
    gap: 10px;
    margin-top: 38px;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 25px;
    transform: translate(-50%, 20px);
    opacity: 0;
    pointer-events: none;
    padding: 12px 17px;
    border-radius: 999px;
    background: rgba(29,29,31,.94);
    color: white;
    font-size: 12px;
    transition: .25s ease;
    z-index: 50;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 13px;
    background: rgba(245,245,247,.7);
    backdrop-filter: blur(12px);
}

.spinner {
    width: 26px;
    height: 26px;
    border: 2px solid #d0d0d3;
    border-top-color: #1d1d1f;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

.loading-overlay span {
    color: var(--muted);
    font-size: 12px;
}

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

@media (max-width: 800px) {

    .topbar,
    main {
        width: min(100% - 30px, 650px);
    }

    .screen {
        padding-top: 40px;
    }

    .hero {
        padding-top: 4vh;
    }

    .hero h1 {
        font-size: 49px;
    }

    .home-foot {
        gap: 25px;
        margin-top: 10vh;
        flex-wrap: wrap;
    }

    .metric-grid,
    .result-grid {
        grid-template-columns: 1fr;
    }

    .business-grid {
        grid-template-columns: 1fr;
    }

    .change-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 520px) {

    .topbar {
        height: 65px;
    }

    .period-pill {
        display: none;
    }

    .hero h1 {
        font-size: 43px;
    }

    .hero-copy {
        font-size: 16px;
    }

    .hero-actions,
    .result-actions {
        flex-direction: column;
    }

    .hero-actions button,
    .result-actions button {
        width: 100%;
    }

    .change-grid {
        grid-template-columns: 1fr;
    }

    .change-card {
        min-height: 130px;
    }

    .change-icon {
        margin-bottom: 20px;
    }

    .two-fields {
        grid-template-columns: 1fr;
    }

    .screen-heading h2 {
        font-size: 38px;
    }

    .result-value {
        font-size: 58px;
    }
}