:root {
    --bg-color: #f4f7f9;
    --sidebar-bg: #fff;
    --sidebar-border: #e6ebf1;
    --card-bg: #fff;
    --primary: #3063e3;
    --primary-hover: #2551c7;
    --text-main: #212b36;
    --text-muted: #637381;
    --border-color: #e6ebf1;
    --success: #22c55e;
    --danger: #ff5630;
    --sidebar-width: 200px;
    --radius: 8px
}

body {
    -webkit-font-smoothing: antialiased;
    background-color: var(--bg-color);
    box-sizing: border-box;
    color: var(--text-main);
    font-family: Inter, sans-serif;
    margin: 0
}

*,
:after,
:before {
    box-sizing: inherit
}

.app-layout {
    display: flex;
    min-height: 100vh;
    width: 100%
}

.sidebar {
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    height: 100vh;
    padding: 2rem 0;
    position: fixed;
    width: var(--sidebar-width)
}

.main-content {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-width: 0;
    width: 100%
}

.main-content.has-sidebar {
    margin-left: var(--sidebar-width)
}

.top-bar {
    align-items: center;
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    height: 70px;
    justify-content: space-between;
    padding: 0 3rem
}

.content-area {
    box-sizing: border-box;
    flex: 1;
    margin: 0 auto;
    max-width: 1400px;
    padding: 3rem;
    width: 100%
}

.container {
    margin: 0 auto;
    max-width: 1200px;
    padding: 0 1rem;
    width: 100%
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: all .2s
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: 0 1px 3px rgba(0, 0, 0, .05);
    padding: 1.5rem
}

.btn {
    align-items: center;
    border: 1px solid transparent;
    border-radius: var(--radius);
    box-shadow: 0 1px 2px rgba(0, 0, 0, .05);
    cursor: pointer;
    display: inline-flex;
    font-size: .875rem;
    font-weight: 600;
    gap: .6rem;
    justify-content: center;
    line-height: 1.25rem;
    padding: .6rem 1.25rem;
    transition: all .2s cubic-bezier(.4, 0, .2, 1);
    white-space: nowrap
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0, #2551c7 100%);
    color: #fff
}

.btn-primary:hover {
    box-shadow: 0 4px 6px -1px rgba(48, 99, 227, .2), 0 2px 4px -1px rgba(48, 99, 227, .1);
    filter: brightness(1.1);
    transform: translateY(-1px)
}

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

.btn-secondary {
    background-color: #fff;
    border-color: #d1d5db;
    color: #374151
}

.btn-secondary:hover {
    background-color: #f9fafb;
    border-color: #9ca3af;
    transform: translateY(-1px)
}

.btn-danger {
    background-color: var(--danger);
    color: #fff
}

.btn-danger:hover {
    box-shadow: 0 4px 6px -1px rgba(255, 86, 48, .2);
    filter: brightness(1.1);
    transform: translateY(-1px)
}

.btn-success {
    background-color: var(--success);
    color: #fff
}

.btn-success:hover {
    box-shadow: 0 4px 6px -1px rgba(34, 197, 94, .2);
    filter: brightness(1.1);
    transform: translateY(-1px)
}

.btn-ghost {
    background: transparent;
    border: none;
    box-shadow: none;
    color: var(--text-muted)
}

.btn-ghost:hover {
    background-color: rgba(48, 99, 227, .05);
    color: var(--primary)
}

.filter-select {
    -moz-appearance: none;
    appearance: none;
    -webkit-appearance: none;
    background-color: #f4f5f7;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='m6 9 6 6 6-6' stroke='%2344546f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-position: right .5rem center;
    background-repeat: no-repeat;
    background-size: 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    box-shadow: none;
    color: #172b4d;
    cursor: pointer;
    font-size: .875rem;
    font-weight: 500;
    min-width: 150px;
    padding: .6rem 2.25rem .6rem 1rem;
    transition: all .2s cubic-bezier(.4, 0, .2, 1)
}

.filter-select:hover {
    background-color: #ebecf0;
    color: #091e42
}

.filter-select:focus {
    background-color: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(48, 99, 227, .2);
    outline: none
}

.btn-filter {
    align-items: center;
    background: #fff;
    border: 1px solid #d1d5db;
    border-radius: var(--radius);
    box-shadow: 0 1px 2px rgba(0, 0, 0, .05);
    color: #374151;
    cursor: pointer;
    display: flex;
    font-size: .875rem;
    font-weight: 500;
    gap: .5rem;
    padding: .5rem 1rem;
    transition: all .2s
}

.btn-filter:hover {
    background-color: #f9fafb;
    border-color: #9ca3af
}

.btn-clear {
    align-items: center;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    color: #6b7280;
    cursor: pointer;
    display: inline-flex;
    font-size: .875rem;
    font-weight: 500;
    gap: .4rem;
    padding: .5rem 1rem;
    transition: all .2s
}

.btn-clear:hover {
    background-color: #fee2e2;
    color: #dc2626
}

.btn-complete {
    background-color: var(--success);
    border: none;
    border-radius: var(--radius);
    color: #fff;
    cursor: pointer;
    font-size: .85rem;
    font-weight: 600;
    padding: .5rem 1rem;
    transition: all .2s
}

.btn-complete:hover {
    filter: brightness(1.1)
}

@keyframes pulse-red {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 86, 48, .4)
    }

    70% {
        box-shadow: 0 0 0 10px rgba(255, 86, 48, 0)
    }

    to {
        box-shadow: 0 0 0 0 rgba(255, 86, 48, 0)
    }
}

.timer-toggle {
    align-items: center;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    display: inline-flex;
    font-weight: 600;
    justify-content: center;
    outline: none;
    transition: all .2s cubic-bezier(.4, 0, .2, 1)
}

.play-btn {
    background: #fff;
    border: 1px solid #dfe1e6;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, .05);
    color: var(--primary);
    height: 36px;
    position: relative;
    width: 36px
}

.play-btn:hover {
    background: #f4f7ff;
    border-color: var(--primary);
    transform: scale(1.05)
}

.play-btn.running {
    animation: pulse-red 2s infinite;
    background: #fff0f0;
    border-color: var(--danger);
    color: var(--danger)
}

.timer-icon {
    display: block;
    pointer-events: none;
    position: relative
}

.icon-play {
    border-bottom: 5px solid transparent;
    border-left: 8px solid;
    border-top: 5px solid transparent;
    height: 0;
    margin-left: 2px;
    width: 0
}

.icon-stop {
    background-color: currentColor;
    border-radius: 1px;
    height: 8px;
    width: 8px
}

.detail-toggle-btn {
    background: var(--primary);
    border: none;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, .2);
    color: #fff;
    font-size: .95rem;
    gap: .75rem;
    padding: .75rem 1.5rem
}

.detail-toggle-btn.running {
    animation: pulse-red 2s infinite;
    background: var(--danger);
    box-shadow: 0 4px 6px -1px rgba(239, 68, 68, .2)
}

.detail-toggle-btn:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, .1);
    filter: brightness(1.1);
    transform: translateY(-2px)
}

.detail-toggle-btn .timer-text {
    align-items: center;
    display: flex;
    gap: .6rem
}

.form-control {
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-sizing: border-box;
    color: var(--text-main);
    font-size: .9rem;
    padding: .6rem;
    width: 100%
}

.form-control:focus {
    border-color: var(--primary);
    outline: none
}

h1,
h2,
h3 {
    color: var(--text-main);
    margin: 0
}

.filters-bar {
    align-items: center;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1.5rem
}

.tasks-toolbar {
    align-items: center;
    border: 1px solid #dfe1e6;
    border-bottom: none;
    border-top-left-radius: var(--radius);
    border-top-right-radius: var(--radius);
    justify-content: space-between;
    margin-bottom: 1rem;
    padding: .75rem 1rem
}

.task-list-main,
.tasks-toolbar {
    background: #fff;
    display: flex;
    flex-direction: row
}

.task-list-main {
    border: 1px solid #dfe1e6;
    border-bottom-left-radius: var(--radius);
    border-bottom-right-radius: var(--radius);
    overflow: hidden
}

.task-row-plain {
    align-items: center;
    background: #fff;
    border-bottom: 1px solid #f4f5f7;
    cursor: pointer;
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
    padding: .6rem 2rem;
    transition: background .2s;
    width: 100%;
    min-width: 0
}

.task-row-plain:hover {
    background: #f9fafb
}

.task-row-plain.active {
    background: #f4f7ff
}

.task-title-plain {
    color: #313945;
    flex: 1;
    font-size: .9rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0
}

.task-actions-plain {
    gap: 1rem;
    flex-shrink: 0
}

.task-actions-plain,
.tasks-page-header {
    align-items: center;
    display: flex;
    flex-direction: row
}

.tasks-page-header {
    gap: 1.5rem;
    margin-bottom: 1.5rem
}

.tasks-page-header h1 {
    color: #313945;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0
}

.assignee-link {
    color: #6b778c;
    font-size: 1.5rem;
    font-weight: 400
}

.tasks-scroll {
    border-right: 1px solid #dfe1e6;
    flex: 1;
    min-width: 0
}

.project-header-row {
    align-items: center;
    background: #fff;
    border-bottom: 1px solid #dfe1e6;
    color: #313945;
    display: flex;
    flex-direction: row;
    font-size: .9rem;
    font-weight: 600;
    gap: .75rem;
    padding: .6rem 1.5rem
}

.check-circle {
    border: 2px solid #dfe1e6;
    color: #dfe1e6;
    flex-shrink: 0;
    font-size: 10px;
    height: 20px;
    width: 20px
}

.check-circle,
.user-avatar-small {
    align-items: center;
    border-radius: 50%;
    display: flex;
    justify-content: center
}

.user-avatar-small {
    background: #8777d9;
    color: #fff;
    font-size: .7rem;
    font-weight: 700;
    height: 24px;
    width: 24px
}

.detail-container {
    background: #fff;
    display: flex;
    flex-direction: column;
    transition: width .3s ease;
    visibility: hidden;
    width: 0
}

.split-active .detail-container {
    visibility: visible;
    width: 45%
}

.toast-container {
    display: flex;
    flex-direction: column;
    gap: .75rem;
    position: fixed;
    right: 2rem;
    top: 2rem;
    z-index: 1000
}

.toast {
    align-items: center;
    animation: slideIn .3s ease-out forwards;
    background: #fff;
    border-left: 4px solid var(--primary);
    border-radius: var(--radius);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);
    color: #374151;
    display: flex;
    font-weight: 500;
    gap: .75rem;
    min-width: 300px;
    padding: 1rem 1.5rem
}

.toast.error {
    border-left-color: var(--danger)
}

.toast.success {
    border-left-color: var(--success)
}

@keyframes slideIn {
    0% {
        opacity: 0;
        transform: translateX(100%)
    }

    to {
        opacity: 1;
        transform: translateX(0)
    }
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateY(-10px)
    }
}

.detail-header {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    justify-content: space-between;
    padding: 1.5rem
}

.detail-actions,
.detail-header {
    align-items: center;
    display: flex
}

.detail-actions {
    gap: 1rem
}