:root {
    color-scheme: light;
    --bg: #f7f5ff;
    --surface: #ffffff;
    --surface-soft: #f0ebff;
    --text: #2d2442;
    --muted: #6e6680;
    --border: #ddd4f3;
    --primary: #7c5ce5;
    --primary-dark: #6045c2;
    --focus: #6d28d9;
    --danger: #b42318;
    --success: #157347;
    --shadow: 0 18px 48px rgb(92 65 180 / 13%);
    --radius-sm: 10px;
    --radius: 18px;
    --radius-lg: 28px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    min-height: 100vh;
    color: var(--text);
    background: var(--bg);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.55;
    text-rendering: optimizeLegibility;
}

a {
    color: var(--primary-dark);
    text-underline-offset: 0.2em;
}

button,
input,
textarea,
select {
    font: inherit;
}

button,
.button,
a {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 3px;
}

.skip-link {
    position: fixed;
    z-index: 1000;
    top: 12px;
    left: 12px;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    color: #fff;
    background: var(--text);
    transform: translateY(-150%);
}

.skip-link:focus {
    transform: translateY(0);
}

.app-header {
    position: sticky;
    z-index: 100;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 68px;
    padding: 10px max(20px, calc((100vw - 1180px) / 2));
    border-bottom: 1px solid rgb(221 212 243 / 88%);
    background: rgb(255 255 255 / 92%);
    backdrop-filter: blur(12px);
}

.brand,
.nav,
.nav form {
    display: flex;
    align-items: center;
}

.brand {
    gap: 10px;
    color: var(--text);
    font-weight: 800;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 12px;
    color: #fff;
    background: var(--primary);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
}

.nav {
    gap: 4px;
}

.nav a,
.link-button {
    min-height: 44px;
    padding: 10px 12px;
    border: 0;
    border-radius: var(--radius-sm);
    color: var(--text);
    background: transparent;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.nav a:hover,
.link-button:hover {
    background: var(--surface-soft);
}

.app-main {
    width: min(100% - 32px, 1180px);
    margin-inline: auto;
    padding-block: 32px 64px;
}

.messages {
    display: grid;
    gap: 8px;
    margin-bottom: 20px;
}

.message {
    margin: 0;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
}

.message.success {
    border-color: #86c6a6;
    color: #0b5636;
    background: #eaf8f0;
}

h1,
h2,
p {
    overflow-wrap: anywhere;
}

h1,
h2 {
    margin-top: 0;
    line-height: 1.15;
    letter-spacing: -0.025em;
}

h1 {
    margin-bottom: 16px;
    font-size: clamp(2rem, 5vw, 3.7rem);
}

h2 {
    margin-bottom: 12px;
    font-size: clamp(1.3rem, 2vw, 1.7rem);
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--primary-dark);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.lead,
.muted,
.empty-state {
    color: var(--muted);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 18px;
    border: 1px solid transparent;
    border-radius: 12px;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}

.button.primary {
    color: #fff;
    background: var(--primary);
}

.button.primary:hover {
    background: var(--primary-dark);
}

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

.auth-shell {
    display: grid;
    min-height: calc(100vh - 180px);
    place-items: center;
}

.auth-panel,
.narrow-panel {
    width: min(100%, 620px);
    padding: clamp(24px, 5vw, 42px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.auth-panel {
    width: min(100%, 480px);
}

.form-stack {
    display: grid;
    gap: 18px;
}

.form-field {
    display: grid;
    gap: 7px;
}

.form-field > label {
    font-weight: 750;
}

.form-field input,
.form-field textarea,
.form-field select {
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    border: 1px solid #b7aad8;
    border-radius: 11px;
    color: var(--text);
    background: #fff;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    border-color: var(--primary);
}

.form-field.has-error input,
.form-field.has-error textarea,
.form-field.has-error select {
    border-color: var(--danger);
}

.help-text,
.help-text ul,
.field-errors,
.errorlist {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.help-text ul,
.errorlist {
    padding-left: 20px;
}

.field-errors,
.errorlist {
    color: var(--danger);
}

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

.page-heading h1 {
    margin-bottom: 0;
}

.platform-home {
    display: grid;
    gap: 24px;
}

.platform-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.7fr);
    gap: 32px;
    padding: clamp(26px, 5vw, 56px);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #eee8ff, #fbf9ff 58%, #f7efff);
}

.platform-hero-copy .lead {
    max-width: 65ch;
    font-size: 1.08rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.today-focus {
    display: grid;
    align-content: center;
    gap: 10px;
    padding: 24px;
    border: 1px solid rgb(255 255 255 / 70%);
    border-radius: 22px;
    background: rgb(255 255 255 / 82%);
}

.today-focus > span,
.home-metrics span {
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 700;
}

.today-focus > strong {
    font-size: 3rem;
    line-height: 1;
}

.today-focus p {
    margin: 0;
}

.focus-track {
    height: 9px;
    overflow: hidden;
    border-radius: 999px;
    background: #e5def7;
}

.focus-track i {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: var(--primary);
}

.home-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.home-metrics article {
    display: grid;
    gap: 6px;
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}

.home-metrics strong {
    font-size: 1.8rem;
}

.home-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
    gap: 20px;
}

.function-panel,
.activity-panel {
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.section-heading h2 {
    margin: 0;
}

.function-grid {
    display: grid;
    gap: 12px;
}

.function-tile {
    display: grid;
    gap: 5px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 14px;
    color: var(--text);
    text-decoration: none;
}

.function-tile:hover {
    border-color: var(--primary);
    background: var(--surface-soft);
}

.function-tile > span {
    color: var(--primary-dark);
    font-weight: 800;
}

.activity-row {
    display: grid;
    gap: 3px;
    padding-block: 13px;
    border-bottom: 1px solid var(--border);
}

.activity-row:last-child {
    border-bottom: 0;
}

.activity-row span,
.activity-row time {
    color: var(--muted);
    font-size: 0.9rem;
}

.tracking-shell {
    display: grid;
    min-width: 0;
    gap: 22px;
}

.tracking-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(420px, 0.8fr);
    gap: 28px;
    align-items: end;
    padding: clamp(28px, 5vw, 52px);
    overflow: hidden;
    border: 1px solid #d5c9f5;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(circle at 90% 5%, rgb(255 255 255 / 72%), transparent 28%),
        linear-gradient(135deg, #e8e0ff, #f8f5ff 62%, #f3e9ff);
    box-shadow: var(--shadow);
}

.tracking-hero h1 {
    max-width: 760px;
    margin-bottom: 12px;
}

.tracking-hero p:not(.eyebrow) {
    max-width: 68ch;
    margin: 0;
    color: var(--muted);
}

.tracking-filter {
    display: grid;
    grid-template-columns: repeat(2, minmax(130px, 1fr)) auto;
    gap: 10px;
    align-items: end;
    padding: 16px;
    border: 1px solid rgb(213 201 245 / 90%);
    border-radius: 18px;
    background: rgb(255 255 255 / 82%);
}

.tracking-date-field {
    display: grid;
    gap: 6px;
}

.tracking-date-field label {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 800;
}

.tracking-date-field input {
    min-height: 44px;
    width: 100%;
    padding: 9px 10px;
    border: 1px solid #b7aad8;
    border-radius: 11px;
    color: var(--text);
    background: #fff;
}

.tracking-range-note {
    margin: -8px 4px 0;
    color: var(--muted);
    font-size: 0.92rem;
}

.tracking-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.tracking-metrics article {
    position: relative;
    display: grid;
    min-height: 128px;
    align-content: space-between;
    gap: 12px;
    padding: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}

.tracking-metrics article::after {
    position: absolute;
    right: -24px;
    bottom: -35px;
    width: 92px;
    height: 92px;
    border-radius: 50%;
    background: #eee8ff;
    content: "";
}

.tracking-metrics span {
    z-index: 1;
    color: var(--muted);
    font-size: 0.86rem;
    font-weight: 750;
}

.tracking-metrics strong {
    z-index: 1;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    line-height: 1;
}

.tracking-modes,
.tracking-table-section,
.inactive-panel {
    min-width: 0;
    padding: clamp(20px, 4vw, 30px);
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--surface);
}

.tracking-modes {
    display: grid;
    grid-template-columns: minmax(220px, 0.45fr) 1fr;
    gap: 22px;
    align-items: center;
    color: #fff;
    background: linear-gradient(135deg, #5f43bd, #8064dc);
    box-shadow: 0 18px 42px rgb(92 65 180 / 20%);
}

.tracking-modes .eyebrow,
.tracking-modes h2 {
    color: #fff;
}

.tracking-modes h2 {
    margin: 0;
}

.mode-total-list {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}

.mode-total-list span {
    padding: 9px 12px;
    border: 1px solid rgb(255 255 255 / 28%);
    border-radius: 999px;
    background: rgb(255 255 255 / 13%);
    font-size: 0.88rem;
}

.mode-total-list strong {
    margin-right: 4px;
    font-size: 1rem;
}

.table-scroll {
    max-width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 16px;
}

.tracking-table {
    width: 100%;
    min-width: 980px;
    border-collapse: collapse;
    background: #fff;
}

.tracking-table th,
.tracking-table td {
    padding: 14px;
    border-bottom: 1px solid #ebe6f7;
    text-align: left;
    vertical-align: top;
}

.tracking-table thead th {
    color: #564b70;
    background: #f4f0ff;
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.tracking-table tbody tr:last-child > * {
    border-bottom: 0;
}

.tracking-table tbody tr:hover {
    background: #fbfaff;
}

.tracking-table tbody th {
    min-width: 190px;
}

.tracking-table tbody th > span {
    display: block;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 500;
}

.accuracy-badge {
    display: inline-flex;
    min-width: 56px;
    justify-content: center;
    padding: 6px 9px;
    border-radius: 999px;
    color: #4e338f;
    background: #eee8ff;
    font-weight: 850;
}

.learner-mode-list {
    display: flex;
    min-width: 210px;
    flex-wrap: wrap;
    gap: 5px;
}

.learner-mode-list span {
    padding: 5px 8px;
    border-radius: 8px;
    color: #5c4d7c;
    background: #f3effc;
    font-size: 0.76rem;
    white-space: nowrap;
}

.tracking-empty {
    padding: 32px;
    border: 1px dashed #b7aad8;
    border-radius: 16px;
    text-align: center;
    background: #faf8ff;
}

.tracking-empty p {
    margin: 6px 0 0;
    color: var(--muted);
}

.inactive-panel {
    display: grid;
    grid-template-columns: minmax(260px, 0.7fr) 1fr;
    gap: 24px;
    background: #faf8ff;
}

.inactive-panel h2,
.inactive-panel p {
    margin-bottom: 8px;
}

.inactive-panel ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.inactive-panel li {
    padding: 10px 12px;
    border: 1px solid #e1d9f5;
    border-radius: 11px;
    background: #fff;
    font-weight: 750;
}

.inactive-panel li span {
    display: block;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 500;
}

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

@media (max-width: 820px) {
    .platform-hero,
    .home-workspace,
    .tracking-hero,
    .tracking-modes,
    .inactive-panel {
        grid-template-columns: 1fr;
    }

    .home-metrics,
    .tracking-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 620px) {
    .app-header {
        align-items: flex-start;
        padding: 10px 16px;
    }

    .brand > span:last-child {
        display: none;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .nav a,
    .link-button {
        padding-inline: 8px;
        font-size: 0.9rem;
    }

    .app-main {
        width: min(100% - 24px, 1180px);
        padding-top: 20px;
    }

    .platform-hero,
    .auth-panel,
    .narrow-panel,
    .tracking-hero {
        padding: 22px;
        border-radius: 20px;
    }

    .tracking-filter,
    .tracking-metrics,
    .inactive-panel ul {
        grid-template-columns: 1fr;
    }

    .page-heading {
        align-items: stretch;
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}