:root {
    --bg: #f4f1ea;
    --panel: rgba(255, 255, 255, 0.82);
    --panel-strong: #ffffff;
    --line: rgba(20, 42, 48, 0.12);
    --text: #153038;
    --muted: #68797d;
    --accent: #0f766e;
    --accent-soft: rgba(15, 118, 110, 0.12);
    --warn: #c76f31;
    --danger: #b53f3f;
    --shadow: 0 24px 60px rgba(21, 48, 56, 0.1);
    --radius: 24px;
    --radius-sm: 16px;
    --font-sans: "Trebuchet MS", "Segoe UI", sans-serif;
    --font-mono: "Consolas", "Courier New", monospace;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-sans);
    color: var(--text);
    background:
        radial-gradient(circle at top right, rgba(15, 118, 110, 0.12), transparent 26%),
        radial-gradient(circle at bottom left, rgba(199, 111, 49, 0.15), transparent 20%),
        var(--bg);
}

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

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

.app-shell {
    display: grid;
    grid-template-columns: 280px 1fr;
}

.sidebar {
    min-height: 100vh;
    padding: 28px;
    border-right: 1px solid var(--line);
    background: rgba(248, 246, 241, 0.9);
    position: sticky;
    top: 0;
}

.brand {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-bottom: 30px;
}

.brand-mark {
    width: 56px;
    height: 56px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #153038, #0f766e);
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.brand-title {
    font-size: 1.05rem;
    font-weight: 700;
}

.brand-subtitle,
.muted,
.small-label,
.page-subtitle,
.list-row span,
.timeline-item span {
    color: var(--muted);
}

.nav {
    display: grid;
    gap: 8px;
}

.nav-link {
    padding: 14px 16px;
    border-radius: 16px;
    transition: 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(21, 48, 56, 0.07);
}

.sidebar-foot {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.mono,
code {
    font-family: var(--font-mono);
}

.main {
    padding: 28px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: flex-start;
    margin-bottom: 24px;
}

.page-title {
    margin: 6px 0 4px;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.topbar-actions {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.notification-box {
    width: 340px;
    padding: 16px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.notification-list {
    display: grid;
    gap: 8px;
    margin-top: 10px;
}

.notification-item {
    margin: 0;
}

.notification-item button {
    width: 100%;
    border: 0;
    text-align: left;
    background: rgba(15, 118, 110, 0.08);
    border-radius: 14px;
    padding: 12px;
    color: var(--text);
    cursor: pointer;
}

.notification-item.read button {
    background: rgba(21, 48, 56, 0.05);
}

.content {
    display: grid;
    gap: 22px;
}

.panel,
.hero-panel,
.stat-card,
.auth-card,
.plan-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.panel,
.auth-card,
.plan-card {
    padding: 24px;
}

.hero-panel {
    padding: 28px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: end;
}

.hero-panel h2,
.auth-card h1 {
    margin: 10px 0;
    font-size: clamp(1.9rem, 3.5vw, 2.8rem);
    line-height: 1.1;
}

.lead {
    max-width: 72ch;
    line-height: 1.55;
    color: var(--muted);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.76rem;
    color: var(--accent);
}

.card-grid,
.usage-grid {
    display: grid;
    gap: 18px;
}

.card-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card {
    padding: 22px;
}

.stat-card span,
.usage-item span {
    display: block;
    margin-bottom: 10px;
    color: var(--muted);
}

.stat-card strong,
.usage-item strong,
.plan-price {
    font-size: 2rem;
}

.split-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 22px;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1.5fr 0.9fr;
    gap: 22px;
}

.detail-side {
    display: grid;
    gap: 22px;
}

.panel-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    margin-bottom: 18px;
}

.panel-head h3 {
    margin: 0;
    font-size: 1.2rem;
}

.list-stack,
.timeline {
    display: grid;
    gap: 12px;
}

.list-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(21, 48, 56, 0.04);
    border: 1px solid transparent;
}

.list-row:hover,
.clickable-row:hover {
    border-color: rgba(15, 118, 110, 0.2);
}

.list-row.static {
    align-items: center;
}

.task-meta {
    display: grid;
    gap: 6px;
    justify-items: end;
    text-align: right;
}

.timeline-item {
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(21, 48, 56, 0.04);
}

.timeline-item p {
    margin: 8px 0 0;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    font-size: 0.85rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.clickable-row {
    cursor: pointer;
}

.board {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
}

.board-column {
    background: rgba(21, 48, 56, 0.04);
    border-radius: 22px;
    padding: 14px;
    min-height: 540px;
}

.board-head {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
}

.board-stack {
    display: grid;
    gap: 12px;
}

.board-card {
    background: var(--panel-strong);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 14px;
    cursor: grab;
}

.board-card p {
    color: var(--muted);
    line-height: 1.45;
}

.board-card-head,
.board-card-foot {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 0.9rem;
}

.board-empty {
    padding: 18px;
    border: 1px dashed var(--line);
    border-radius: 16px;
    color: var(--muted);
    text-align: center;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-radius: 16px;
    padding: 12px 18px;
    background: linear-gradient(135deg, #153038, #0f766e);
    color: #fff;
    cursor: pointer;
    transition: transform 0.16s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-ghost {
    background: rgba(21, 48, 56, 0.08);
    color: var(--text);
}

.stack-form,
.compact-form,
.inline-form {
    display: grid;
    gap: 14px;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.compact-form {
    min-width: 220px;
}

.inline-form {
    grid-template-columns: 1fr auto;
    margin-top: 14px;
}

.stack-form label,
.filters-grid label {
    display: grid;
    gap: 8px;
}

input,
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid rgba(21, 48, 56, 0.14);
    background: rgba(255, 255, 255, 0.88);
    color: var(--text);
}

textarea {
    resize: vertical;
}

.filters-grid,
.grid-2,
.grid-3 {
    display: grid;
    gap: 14px;
}

.filters-grid,
.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.grid-span-2 {
    grid-column: span 2;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(15, 118, 110, 0.12);
    color: var(--accent);
    font-size: 0.85rem;
}

.tag-low {
    background: rgba(15, 118, 110, 0.12);
}

.tag-medium {
    background: rgba(84, 120, 138, 0.12);
    color: #36505c;
}

.tag-high {
    background: rgba(199, 111, 49, 0.14);
    color: var(--warn);
}

.tag-urgent {
    background: rgba(181, 63, 63, 0.15);
    color: var(--danger);
}

.usage-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.usage-item {
    padding: 18px;
    border-radius: 18px;
    background: rgba(21, 48, 56, 0.04);
}

.plan-card.active {
    outline: 2px solid rgba(15, 118, 110, 0.3);
}

.plan-card p {
    color: var(--muted);
    line-height: 1.5;
}

.plan-points {
    margin: 20px 0;
    padding-left: 20px;
    display: grid;
    gap: 8px;
}

.flash {
    padding: 14px 16px;
    border-radius: 16px;
}

.flash-success {
    background: rgba(15, 118, 110, 0.12);
    color: var(--accent);
}

.flash-error {
    background: rgba(181, 63, 63, 0.14);
    color: var(--danger);
}

.flash-info {
    background: rgba(21, 48, 56, 0.08);
}

.profile-stack {
    display: grid;
    gap: 14px;
}

.profile-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}

.check-item button {
    width: 100%;
    border: 0;
    background: rgba(21, 48, 56, 0.04);
    border-radius: 14px;
    padding: 12px 14px;
    display: flex;
    gap: 10px;
    cursor: pointer;
    color: var(--text);
    text-align: left;
}

.check-item .is-done {
    color: var(--muted);
    text-decoration: line-through;
}

.auth-shell {
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-main {
    width: min(720px, 100%);
}

.auth-card {
    padding: 36px;
}

.auth-card.wide {
    width: min(760px, 100%);
}

.auth-links {
    margin-top: 18px;
}

@media (max-width: 1180px) {
    .app-shell,
    .split-grid,
    .detail-grid,
    .card-grid,
    .usage-grid,
    .board {
        grid-template-columns: 1fr;
    }

    .sidebar {
        min-height: auto;
        position: static;
    }

    .topbar {
        flex-direction: column;
    }

    .notification-box {
        width: 100%;
    }
}

@media (max-width: 760px) {
    .main,
    .sidebar,
    .panel,
    .hero-panel,
    .auth-card {
        padding: 18px;
    }

    .filters-grid,
    .grid-2,
    .grid-3,
    .inline-form {
        grid-template-columns: 1fr;
    }

    .grid-span-2 {
        grid-column: auto;
    }

    .list-row,
    .profile-row,
    .board-card-foot,
    .board-card-head,
    .hero-panel,
    .topbar-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .task-meta {
        justify-items: start;
        text-align: left;
    }
}