:root {
    --surface: #ffffff;
    --surface-dim: #f8f9fc;
    --surface-container: #f0f2f6;
    --surface-container-high: #e6e9ef;
    --outline-variant: #dfe3ea;
    --outline: rgba(18, 19, 23, 0.14);
    --on-surface: #121317;
    --on-surface-variant: #53565c;
    --primary: #121317;
    --on-primary: #ffffff;
    --primary-hover: #2f3034;

    --tonal-amber-bg: #fef7e0;
    --tonal-amber-text: #a35a00;
    --tonal-blue-bg: #e8f0fe;
    --tonal-blue-text: #1a56db;
    --tonal-grey-bg: #eef0f4;
    --tonal-grey-text: #53565c;
    --tonal-green-bg: #e6f4ea;
    --tonal-green-text: #1e8e3e;
    --tonal-red-bg: #fce8e6;
    --tonal-red-text: #c5221f;

    --shadow-1: 0 1px 2px rgba(18, 19, 23, 0.05), 0 1px 3px rgba(18, 19, 23, 0.07);
    --shadow-2: 0 8px 24px rgba(18, 19, 23, 0.08), 0 2px 8px rgba(18, 19, 23, 0.05);
    --shadow-lg: 0 30px 70px rgba(18, 19, 23, 0.14), 0 6px 18px rgba(18, 19, 23, 0.06);

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;

    --ease-out: cubic-bezier(0.165, 0.84, 0.44, 1);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Roboto Flex", "Roboto", "Helvetica Neue", Arial, sans-serif;
    font-optical-sizing: auto;
    color: var(--on-surface);
    background: var(--surface-dim);
    -webkit-font-smoothing: antialiased;
}

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

.mono {
    font-family: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ---------- Shell ---------- */

.page-shell {
    min-height: 100vh;
    padding: 0 1.5rem 1rem;
    display: flex;
    flex-direction: column;
}

.page-content {
    max-width: 1180px;
    margin: 0 auto;
    width: 100%;
    flex: 1;
}

.site-header {
    max-width: 1180px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.4rem 0;
}

.site-header:empty {
    display: none;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.98rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--on-surface);
}

.brand-mark::before {
    content: "";
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 50%;
    background: var(--on-surface);
}

.nav-link {
    display: inline-flex;
    align-items: center;
    height: 2.6rem;
    padding: 0 1.2rem;
    border-radius: var(--radius-pill);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--on-surface);
    transition: background-color 0.2s var(--ease-out);
}

.nav-link:hover {
    background: var(--surface-container);
}

/* ---------- Type ---------- */

h1 {
    margin: 0 0 1rem;
}

h2 {
    margin: 0 0 0.6rem;
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.eyebrow-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-pill);
    background: var(--surface-container);
    color: var(--on-surface-variant);
    font-size: 0.8rem;
    font-weight: 500;
}

.eyebrow-pill .dot {
    width: 0.4rem;
    height: 0.4rem;
    border-radius: 50%;
    background: var(--tonal-green-text);
}

.section-text,
.hero-text,
.feature-list {
    color: var(--on-surface-variant);
    line-height: 1.65;
}

.card {
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-1);
    padding: 1.85rem;
}

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

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    padding: 0.85rem 1.6rem;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), color 0.2s var(--ease-out), transform 0.15s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.button-primary {
    background: var(--primary);
    color: var(--on-primary);
    box-shadow: var(--shadow-1);
}

.button-primary:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-2);
    transform: translateY(-1px);
}

.button-primary:active {
    transform: translateY(0);
}

.button-secondary {
    border-color: var(--outline);
    background: var(--surface);
    color: var(--on-surface);
}

.button-secondary:hover {
    background: var(--surface-container);
    border-color: var(--outline-variant);
}

.button-ghost {
    min-height: 3rem;
    padding: 0.85rem 1rem;
    color: var(--on-surface);
    font-weight: 500;
    font-size: 0.95rem;
}

.button-ghost:hover {
    text-decoration: underline;
}

.button-hero {
    min-height: 3.3rem;
    padding: 0.95rem 1.9rem;
    font-size: 1rem;
}

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

/* ---------- Chips ---------- */

.chip {
    display: inline-flex;
    align-items: center;
    height: 1.7rem;
    padding: 0 0.65rem;
    border-radius: var(--radius-pill);
    font-size: 0.76rem;
    font-weight: 500;
    white-space: nowrap;
}

.chip-amber {
    background: var(--tonal-amber-bg);
    color: var(--tonal-amber-text);
}

.chip-blue {
    background: var(--tonal-blue-bg);
    color: var(--tonal-blue-text);
}

.chip-grey {
    background: var(--tonal-grey-bg);
    color: var(--tonal-grey-text);
}

.chip-green {
    background: var(--tonal-green-bg);
    color: var(--tonal-green-text);
}

.chip-red {
    background: var(--tonal-red-bg);
    color: var(--tonal-red-text);
}

/* ---------- Landing ---------- */

.landing-layout {
    display: flex;
    flex-direction: column;
    gap: 6rem;
    padding: 2.5rem 0 4rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
    align-items: center;
}

.landing-title {
    margin: 1.1rem 0 1.2rem;
    font-size: clamp(2.6rem, 4.4vw, 3.8rem);
    font-weight: 600;
    line-height: 1.06;
    letter-spacing: -0.03em;
    color: var(--on-surface);
}

.hero-text-wide {
    max-width: 30rem;
    font-size: 1.08rem;
}

.hero-actions {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Roster preview hero card */

.hero-visual {
    position: relative;
}

.hero-visual::before {
    content: "";
    position: absolute;
    inset: -3rem -2rem;
    background: radial-gradient(circle at 30% 20%, rgba(26, 86, 219, 0.12), transparent 60%),
        radial-gradient(circle at 80% 80%, rgba(163, 90, 0, 0.1), transparent 55%);
    filter: blur(10px);
    z-index: 0;
}

.roster-card {
    position: relative;
    z-index: 1;
    background: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
}

.roster-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1.1rem;
    margin-bottom: 0.4rem;
    border-bottom: 1px solid var(--outline-variant);
}

.roster-card-file {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.86rem;
    font-weight: 500;
    color: var(--on-surface-variant);
}

.roster-card-file .file-dot {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 2px;
    background: var(--tonal-blue-text);
}

.roster-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--outline-variant);
}

.roster-row:last-child {
    border-bottom: none;
    padding-bottom: 0.2rem;
}

.roster-row-time {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--on-surface);
}

.roster-row-hours {
    font-size: 0.8rem;
    color: var(--on-surface-variant);
}

/* Feature grid */

.section-heading {
    max-width: 34rem;
    margin: 0 auto 2.75rem;
    text-align: center;
}

.section-heading h2 {
    font-size: clamp(1.7rem, 2.6vw, 2.1rem);
    letter-spacing: -0.02em;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
}

.feature-card {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: var(--radius-md);
}

.feature-icon svg {
    width: 1.35rem;
    height: 1.35rem;
}

.feature-icon.chip-amber,
.feature-icon.chip-blue,
.feature-icon.chip-green,
.feature-icon.chip-grey,
.feature-icon.chip-red {
    padding: 0;
    white-space: normal;
}

.feature-card .section-text {
    margin: 0;
    font-size: 0.94rem;
}

/* ---------- Auth / login ---------- */

.auth-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 9rem);
    padding: 2rem 0;
}

.auth-card {
    width: 100%;
    max-width: 26rem;
    box-shadow: var(--shadow-lg);
    text-align: left;
}

.auth-title {
    font-size: clamp(1.7rem, 2.6vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    margin: 0 0 1.75rem;
    font-size: 0.95rem;
}

.auth-error-text {
    margin: 1rem 0 0;
    color: var(--tonal-red-text);
    font-size: 0.86rem;
    line-height: 1.4;
}

.stack-form {
    display: grid;
    gap: 1.1rem;
}

.form-field {
    display: grid;
    gap: 0.45rem;
}

.form-field span {
    font-size: 0.86rem;
    font-weight: 500;
    color: var(--on-surface);
}

input[type="text"],
input[type="password"],
input[type="file"] {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-sm);
    background: var(--surface-dim);
    color: var(--on-surface);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="file"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(18, 19, 23, 0.08);
}

/* ---------- Workspace ---------- */

.workspace-layout {
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
    padding: 1.2rem 0 2.5rem;
}

.workspace-topbar {
    display: flex;
    justify-content: flex-end;
}

.workspace-header {
    padding: 0 0 2rem;
}

.workspace-copy {
    max-width: 40rem;
}

.workspace-title {
    margin-bottom: 0.5rem;
    font-size: clamp(1.9rem, 3vw, 2.5rem);
    font-weight: 600;
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.workspace-user-actions {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.workspace-user-greeting {
    margin: 0;
    color: var(--on-surface-variant);
    font-size: 0.88rem;
    font-weight: 500;
}

.workspace-user-actions .button {
    min-height: 2.4rem;
    padding: 0.5rem 1.05rem;
    font-size: 0.85rem;
}

.workspace-subtitle {
    max-width: 36rem;
    margin: 0;
    font-size: 0.98rem;
}

.workspace-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.workspace-card .section-text {
    margin: 0;
    font-size: 0.94rem;
}

.feature-list {
    margin: 0;
    padding-left: 1.15rem;
}

.card-wide {
    grid-column: 1 / -1;
}

/* Material-style tonal banner (used for the compliance + disclaimer notices) */

.banner {
    display: flex;
    gap: 0.85rem;
    padding: 1rem 1.1rem;
    border-radius: var(--radius-md);
    margin-top: 0.95rem;
}

.banner-icon {
    flex: 0 0 auto;
    width: 1.4rem;
    height: 1.4rem;
    margin-top: 0.05rem;
}

.banner-amber {
    background: var(--tonal-amber-bg);
}

.banner-amber .banner-icon {
    color: var(--tonal-amber-text);
}

.banner-grey {
    background: var(--surface-container);
}

.banner-grey .banner-icon {
    color: var(--on-surface-variant);
}

.banner-label {
    margin: 0 0 0.25rem;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.banner-amber .banner-label {
    color: var(--tonal-amber-text);
}

.banner-grey .banner-label {
    color: var(--on-surface);
}

.banner-text {
    margin: 0;
    font-size: 0.87rem;
    line-height: 1.55;
    color: var(--on-surface-variant);
}

.status-box {
    position: relative;
    padding: 1.05rem 1.1rem;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    background: var(--surface-container);
}

.status-box p {
    margin: 0;
    color: var(--on-surface-variant);
    line-height: 1.6;
}

.status-stack {
    display: grid;
    gap: 0.9rem;
}

.status-success {
    background: var(--tonal-green-bg);
    border-color: transparent;
}

.status-success p {
    color: var(--tonal-green-text);
}

.status-error {
    background: var(--tonal-red-bg);
    border-color: transparent;
}

.status-error p {
    color: var(--tonal-red-text);
}

.loader-panel {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.1rem 1.15rem;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    background: var(--surface);
}

.loader-spinner {
    flex: 0 0 auto;
    width: 1.8rem;
    height: 1.8rem;
    border: 3px solid var(--surface-container-high);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loader-title {
    margin: 0 0 0.2rem;
    font-weight: 600;
    color: var(--on-surface);
}

/* ---------- Footer ---------- */

.site-footer {
    max-width: 1180px;
    width: 100%;
    margin: 1.5rem auto 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--outline-variant);
    display: grid;
    grid-template-columns: max-content minmax(1.5rem, 1fr) max-content;
    align-items: center;
    gap: 1.5rem;
}

.site-footer p {
    margin: 0;
    color: var(--on-surface-variant);
    font-size: 0.78rem;
}

.site-footer-copy {
    grid-column: 1;
    text-align: left;
}

.site-footer-note {
    grid-column: 3;
    text-align: right;
}

.is-hidden {
    display: none;
}

button:disabled {
    opacity: 0.6;
    cursor: wait;
}

input[type="file"]:disabled {
    opacity: 0.6;
    cursor: wait;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 960px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 720px) {
    .workspace-grid {
        grid-template-columns: 1fr;
    }

    .card-wide {
        grid-column: auto;
    }

    .workspace-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-footer {
        grid-template-columns: 1fr;
        gap: 0.3rem;
    }

    .site-footer-copy,
    .site-footer-note {
        grid-column: 1;
        text-align: left;
    }

    .site-header {
        padding: 1rem 0;
    }
}