:root {
    color-scheme: dark;
    font-family: Roboto, "Segoe UI", sans-serif;
    --md-sys-color-primary: #8ab58f;
    --md-sys-color-on-primary: #102915;
    --md-sys-color-primary-container: #294633;
    --md-sys-color-on-primary-container: #d7f2d8;
    --md-sys-color-secondary: #a5bfa7;
    --md-sys-color-secondary-container: #304436;
    --md-sys-color-tertiary: #d7c39f;
    --md-sys-color-error: #b3261e;
    --md-sys-color-surface: #101714;
    --md-sys-color-surface-container: #1a2520;
    --md-sys-color-surface-container-high: #213029;
    --md-sys-color-surface-container-highest: #27372f;
    --md-sys-color-on-surface: #e3eee5;
    --md-sys-color-on-surface-variant: #b2c1b4;
    --md-sys-color-outline: #6f8472;
    --md-elevation-1: 0 1px 2px rgba(0, 0, 0, 0.24), 0 1px 3px rgba(0, 0, 0, 0.12);
    --md-elevation-2: 0 2px 6px rgba(0, 0, 0, 0.24), 0 1px 3px rgba(0, 0, 0, 0.14);
}

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

body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px 12px;
    background:
        radial-gradient(1200px 480px at 10% -10%, #24462e 0%, transparent 55%),
        radial-gradient(900px 460px at 100% 0%, #1f3a28 0%, transparent 52%),
        var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
}

.app {
    width: min(760px, 100%);
    display: grid;
    gap: 16px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.tab-view {
    display: grid;
    gap: 16px;
}

.settings-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: grid;
    place-items: center;
    padding: 16px;
    background: rgba(7, 12, 10, 0.56);
    backdrop-filter: blur(3px);
}

.settings-overlay[hidden] {
    display: none;
}

.settings-panel {
    width: min(640px, calc(100vw - 24px));
    box-shadow: var(--md-elevation-2);
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.settings-close-btn {
    min-height: 34px;
    height: 34px;
    width: 34px;
    min-width: 34px;
    padding: 0;
    border-radius: 10px;
    background: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
    box-shadow: none;
}

h1 {
    margin: 0;
    font-size: 2rem;
    line-height: 2.5rem;
    font-weight: 700;
    letter-spacing: 0;
    color: var(--md-sys-color-on-surface);
    padding-left: 4px;
}

h2 {
    margin: 0;
    font-size: 1.25rem;
    line-height: 1.75rem;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
}

.panel {
    background: color-mix(in srgb, var(--md-sys-color-surface-container) 92%, #ffffff 8%);
    border: 1px solid color-mix(in srgb, var(--md-sys-color-outline) 32%, transparent 68%);
    border-radius: 24px;
    padding: 18px;
    display: grid;
    gap: 12px;
    box-shadow: var(--md-elevation-1);
    backdrop-filter: blur(4px);
}

label {
    font-size: 0.8rem;
    line-height: 1rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--md-sys-color-on-surface-variant);
}

.row,
.controls {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

input,
select,
button {
    font: inherit;
    min-height: 42px;
    border-radius: 12px;
}

input,
select {
    width: 100%;
    border: 1px solid var(--md-sys-color-outline);
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    padding: 10px 12px;
    transition: border-color 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

input:hover,
select:hover {
    border-color: color-mix(in srgb, var(--md-sys-color-on-surface-variant) 72%, #000 28%);
}

input:focus-visible,
select:focus-visible,
button:focus-visible {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-sys-color-primary) 24%, transparent 76%);
}

button {
    border: none;
    padding: 0 16px;
    font-weight: 500;
    letter-spacing: 0.01em;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    cursor: pointer;
    box-shadow: var(--md-elevation-1);
    transition: transform 120ms ease, box-shadow 120ms ease, filter 120ms ease;
}

button:hover {
    filter: brightness(1.04);
    box-shadow: var(--md-elevation-2);
}

button:active {
    transform: translateY(1px);
}

button:disabled {
    opacity: 0.52;
    cursor: not-allowed;
    box-shadow: none;
}

#saveTokenBtn,
#loadTasksBtn,
#setTimerBtn,
#stopBtn,
#resetBtn {
    background: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-surface);
}

#startBtn {
    background: #0b1110;
    color: #d7c39f;
}

#addSelectedTaskBtn {
    min-width: 180px;
}

#settingsToggleBtn {
    background: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
}

.time {
    margin-top: 4px;
    font-size: clamp(2.3rem, 8vw, 4.4rem);
    line-height: 1;
    letter-spacing: 0.02em;
    text-align: center;
    font-weight: 700;
    color: #f0eadc;
}

.status {
    margin: 0;
    min-height: 1.2rem;
    font-size: 0.82rem;
    line-height: 1.2rem;
    color: var(--md-sys-color-secondary);
}

.made-in {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 6px;
    text-align: center;
    font-size: 0.82rem;
    color: var(--md-sys-color-on-surface-variant);
    pointer-events: none;
}

.task-list {
    display: grid;
    gap: 8px;
}

.task-card {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px;
    border-radius: 16px;
    border: 1px solid color-mix(in srgb, var(--md-sys-color-outline) 40%, transparent 60%);
    background: var(--md-sys-color-surface);
}

.task-card-main {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: inherit;
    text-align: left;
    padding: 0 8px;
}

.task-card-main:hover {
    background: var(--md-sys-color-surface-container-high);
    border-color: color-mix(in srgb, var(--md-sys-color-primary) 35%, transparent 65%);
}

.task-card-selected {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--md-sys-color-primary) 24%, transparent 76%);
}

.task-card-done {
    border-color: color-mix(in srgb, var(--md-sys-color-tertiary) 45%, transparent 55%);
    background: color-mix(in srgb, var(--md-sys-color-surface) 78%, #efe7f2 22%);
}

.task-done-btn {
    width: 26px;
    height: 26px;
    min-width: 26px;
    padding: 0;
    border-radius: 999px;
    border: 2px solid var(--md-sys-color-outline);
    background: transparent;
    color: transparent;
    box-shadow: none;
}

.task-done-btn:hover {
    border-color: var(--md-sys-color-primary);
    background: color-mix(in srgb, var(--md-sys-color-primary) 10%, transparent 90%);
}

.task-done-btn-done,
.task-done-btn-done:hover {
    border-color: var(--md-sys-color-tertiary);
    background: var(--md-sys-color-tertiary);
    color: #fff;
    cursor: pointer;
    box-shadow: none;
}

.task-card-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-right: 8px;
    color: var(--md-sys-color-on-surface);
}

.task-card-title-done {
    color: var(--md-sys-color-on-surface-variant);
    text-decoration: line-through;
}

.task-card-ratio {
    color: var(--md-sys-color-on-surface-variant);
    font-weight: 700;
    letter-spacing: 0.02em;
}

@media (max-width: 680px) {
    body {
        padding: 12px;
    }

    .panel {
        border-radius: 20px;
        padding: 14px;
    }

    .row,
    .controls {
        gap: 8px;
    }

    #addSelectedTaskBtn {
        width: 100%;
        min-width: 0;
    }
}