/* ══════════════════════════════════════════════════════════════
   PROJECT DASHBOARD — Linear-inspired Design System
   ══════════════════════════════════════════════════════════════ */

/* ── Design Tokens (Light theme = default) ── */
:root {
    /* Surfaces */
    --bg:              #f5f6f7;
    --surface:         #ffffff;
    --surface-alt:     #f0f1f3;
    --surface-hover:   #ebedf0;
    --surface-strong:  #e4e6ea;

    /* Borders */
    --border:          #d0d6e0;
    --border-subtle:   #e6e6e6;

    /* Text */
    --text:            #1a1a2e;
    --text-strong:     #0f0f1a;
    --text-muted:      #6b7280;
    --text-faint:      #9ca3af;

    /* Accent — Linear indigo */
    --accent:          #5e6ad2;
    --accent-hover:    #7170ff;
    --accent-subtle:   rgba(94, 106, 210, 0.08);

    /* Status */
    --danger:          #ef4444;
    --danger-hover:    #dc2626;
    --success:         #10b981;

    /* Semantic */
    --event-color:     #f59e0b;
    --vacation-color:  #14b8a6;
    --today-color:     #5e6ad2;

    /* Gantt stripes */
    --stripe-weekend:       rgba(0,0,0,0.025);
    --stripe-holiday:       rgba(94, 106, 210, 0.06);
    --stripe-holiday-hover: rgba(94, 106, 210, 0.12);

    /* Task */
    --task-bg:         #ffffff;

    /* Modal */
    --modal-overlay:   rgba(0,0,0,0.6);

    /* Header — always dark */
    --header-bg:       #0f1011;
    --header-text:     #f7f8f8;
    --header-border:   rgba(255,255,255,0.08);

    /* Sidebar */
    --sidebar-bg:      #ffffff;
    --sidebar-border:  #e6e6e6;

    /* Radius scale */
    --radius-xs:   4px;
    --radius-sm:   6px;
    --radius:      8px;
    --radius-lg:  12px;
    --radius-xl:  16px;
    --radius-pill: 9999px;

    /* Shadows */
    --shadow-xs:  0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow:     0 2px 8px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md:  0 4px 12px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg:  0 12px 24px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.06);
}

/* ── Dark theme ── */
[data-theme="dark"] {
    --bg:              #0f1011;
    --surface:         #191a1b;
    --surface-alt:     #1f2021;
    --surface-hover:   #28282c;
    --surface-strong:  #2e2f33;

    --border:          rgba(255,255,255,0.08);
    --border-subtle:   rgba(255,255,255,0.05);

    --text:            #d0d6e0;
    --text-strong:     #f7f8f8;
    --text-muted:      #8a8f98;
    --text-faint:      #62666d;

    --task-bg:         #191a1b;

    --stripe-weekend:       rgba(255,255,255,0.025);
    --stripe-holiday:       rgba(94, 106, 210, 0.08);
    --stripe-holiday-hover: rgba(94, 106, 210, 0.15);

    --modal-overlay:   rgba(0,0,0,0.85);

    --header-bg:       #0a0a0b;
    --header-border:   rgba(255,255,255,0.05);

    --sidebar-bg:      #141516;
    --sidebar-border:  rgba(255,255,255,0.06);

    --shadow-xs:  0 1px 2px rgba(0,0,0,0.2);
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
    --shadow:     0 2px 8px rgba(0,0,0,0.35), 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md:  0 4px 12px rgba(0,0,0,0.4), 0 2px 4px rgba(0,0,0,0.3);
    --shadow-lg:  0 12px 24px rgba(0,0,0,0.5), 0 4px 8px rgba(0,0,0,0.3);
}

/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html, body {
    font-family: 'Inter', -apple-system, system-ui, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-feature-settings: "cv01", "ss03";
    font-size: 14px;
    line-height: 1.5;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    height: 100%;
    transition: background .25s ease, color .25s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Layout ── */
.app-layout        { display: flex; height: 100vh; overflow: hidden; }
.main-content      { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }
.main-header       {
    display: flex; align-items: center; padding: 0 20px; height: 52px;
    background: var(--header-bg); border-bottom: 1px solid var(--header-border);
    flex-shrink: 0; gap: 12px; justify-content: space-between;
}
.header-right      { display: flex; align-items: stretch; gap: 0; }
.tab-area          { flex: 1; overflow-y: auto; padding: 20px; }
.tab-area.gantt-active { overflow: hidden; display: flex; flex-direction: column; padding: 12px 20px; }
.tab-area.board-active { overflow: hidden; display: flex; flex-direction: column; padding: 0; }
.app-title         {
    font-size: 15px; font-weight: 600; letter-spacing: -0.2px;
    color: var(--header-text); margin: 0;
}
.loading           { color: var(--text-muted); padding: 40px; text-align: center; }

/* ── Sidebar ── */
.sidebar {
    width: 260px; min-width: 260px; background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    display: flex; flex-direction: column; flex-shrink: 0; overflow: hidden;
}
.sidebar-tabs {
    display: flex; align-items: center;
    border-bottom: 1px solid var(--sidebar-border); flex-shrink: 0;
}
.sidebar-tab {
    flex: 1; padding: 10px 0; font-size: 13px; font-weight: 500; letter-spacing: -0.1px;
    background: none; border: none; border-bottom: 2px solid transparent;
    color: var(--text-muted); cursor: pointer; transition: color .15s, border-color .15s;
}
.sidebar-tab:hover { color: var(--text-strong); }
.sidebar-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.sidebar-tab-badge {
    font-size: 11px; font-weight: 600; background: var(--accent); color: #fff;
    padding: 1px 7px; border-radius: var(--radius-pill); margin-left: 6px;
}
.sidebar-collapse-btn {
    background: none; border: none; color: var(--text-faint); cursor: pointer;
    padding: 8px 10px; font-size: 14px; transition: color .15s;
}
.sidebar-collapse-btn:hover { color: var(--accent); }
.sidebar-expand-btn {
    background: var(--sidebar-bg); border: none; border-right: 1px solid var(--sidebar-border);
    color: var(--text-faint); cursor: pointer; padding: 12px 6px; font-size: 14px;
    display: flex; align-items: flex-start; transition: color .15s; flex-shrink: 0;
}
.sidebar-expand-btn:hover { color: var(--accent); }
.sidebar-body { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.sidebar-label {
    font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
    color: var(--text-faint); padding: 16px 16px 8px;
}
.sidebar-project {
    display: flex; align-items: center; gap: 10px; padding: 8px 13px 8px 16px;
    cursor: pointer; transition: background .15s; border-left: 3px solid transparent;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin-right: 8px;
}
.sidebar-project:hover { background: var(--accent-subtle); }
.sidebar-project.active { border-left-color: var(--accent); background: var(--accent-subtle); }
.sidebar-project .dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.sidebar-project .proj-name {
    flex: 1; font-size: 13px; font-weight: 500; line-height: 1.4;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text-muted);
}
.sidebar-project.active .proj-name { color: var(--text-strong); font-weight: 600; }
.sidebar-project .delete-btn {
    opacity: 0; background: none; border: none; color: var(--danger);
    cursor: pointer; padding: 0 4px; font-size: 16px; line-height: 1;
}
.sidebar-project:hover .delete-btn { opacity: 1; }
.sidebar-add-btn { width: 100%; }

/* ── Tabs ── header navigation */
.board-tabs { display: flex; align-items: stretch; background: transparent; padding: 0; }
.tab-btn {
    background: transparent; border: none; border-bottom: 2px solid transparent;
    color: rgba(255,255,255,0.45); padding: 0 16px; font-family: inherit;
    font-size: 13px; font-weight: 500; letter-spacing: -0.1px; cursor: pointer;
    transition: color .15s, border-color .15s; display: flex; align-items: center;
}
.tab-btn:hover { color: rgba(255,255,255,0.85); border-bottom-color: rgba(255,255,255,0.2); }
.tab-btn.active { color: #ffffff; border-bottom-color: var(--accent); }

/* ── Theme toggle ── */
.btn-theme {
    background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.6); padding: 6px 10px; font-size: 14px; cursor: pointer;
    transition: all .15s; border-radius: var(--radius-sm); line-height: 1; align-self: center; margin-left: 12px;
}
.btn-theme:hover { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.9); border-color: rgba(255,255,255,0.15); }

/* ── Buttons ── */
.btn-primary {
    background: var(--accent); color: #ffffff; border: none; padding: 8px 16px;
    border-radius: var(--radius-sm); font-weight: 600; font-size: 13px;
    letter-spacing: -0.1px; cursor: pointer; transition: all .15s; line-height: 1.4;
}
.btn-primary:hover { background: var(--accent-hover); box-shadow: var(--shadow-sm); }
.btn-secondary {
    background: transparent; color: var(--text); border: 1px solid var(--border);
    padding: 8px 16px; border-radius: var(--radius-sm); font-weight: 500; font-size: 13px;
    cursor: pointer; transition: all .15s; line-height: 1.4;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-subtle); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon {
    background: transparent; border: none; color: var(--text-faint); cursor: pointer;
    padding: 4px 6px; border-radius: var(--radius-xs); font-size: 14px; line-height: 1;
    transition: color .15s, background .15s;
}
.btn-icon:hover { color: var(--text); background: var(--surface-hover); }
.btn-icon.danger:hover { color: var(--danger); background: rgba(239,68,68,0.08); }
.btn-danger {
    background: var(--danger); color: #ffffff; border: none; padding: 8px 16px;
    border-radius: var(--radius-sm); cursor: pointer; font-weight: 600; font-size: 13px;
    transition: all .15s; line-height: 1.4;
}
.btn-danger:hover { background: var(--danger-hover); }

/* ── Forms ── */
.form-control {
    border: 1px solid var(--border); background: var(--surface); color: var(--text);
    border-radius: var(--radius-sm); padding: 8px 12px; font-family: inherit; font-size: 14px;
    width: 100%; outline: none; transition: border-color .15s, box-shadow .15s; line-height: 1.5;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-subtle); }
.form-control-color {
    width: 60px; height: 38px; padding: 4px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface); cursor: pointer;
}
.form-group { margin-bottom: 16px; }
.form-group label {
    font-size: 12px; font-weight: 600; letter-spacing: 0.02em;
    color: var(--text-muted); margin-bottom: 6px; display: block; line-height: 1.4;
}
select.form-control option { background: var(--surface); }

/* ── Modal ── */
@keyframes fadeIn  { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.modal-overlay {
    position: fixed; inset: 0; background: var(--modal-overlay);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000; animation: fadeIn .2s ease;
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.modal-content {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 24px;
    min-width: 360px; max-width: 480px; width: 100%;
    animation: slideUp .2s ease; box-shadow: var(--shadow-lg);
}
.modal-header {
    display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px;
}
.modal-header h3 {
    margin: 0; font-size: 16px; font-weight: 600; letter-spacing: -0.2px;
    color: var(--text-strong); line-height: 1.4;
}
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

/* ── Board ── */
.board-view { flex: 1; display: flex; overflow: hidden; gap: 0; }
.board-projects-area {
    flex: 3; min-width: 0; display: flex; gap: 16px; align-items: flex-start;
    overflow-x: auto; padding: 20px; flex-wrap: nowrap; cursor: grab;
    scrollbar-width: none; -ms-overflow-style: none;
}
.board-projects-area::-webkit-scrollbar { display: none; }
.board-projects-area.board-dragging { cursor: grabbing; user-select: none; }
.board-empty-state { text-align: center; padding: 60px 20px; color: var(--text-faint); }
.board-empty-state h3 { color: var(--text); margin: 12px 0 8px; font-size: 1.1rem; line-height: 1.3; }
.board-empty-state .empty-icon { font-size: 48px; }

/* ── Project card ── */
.project-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 16px;
    min-width: 280px; max-width: 280px; flex-shrink: 0;
    box-shadow: var(--shadow-xs);
}
.project-card.drag-over {
    border-color: var(--accent); border-style: dashed;
    background: var(--accent-subtle);
}
.project-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 12px; padding-left: 8px;
}
.project-name { font-weight: 600; font-size: 14px; color: var(--text-strong); line-height: 1.4; letter-spacing: -0.1px; }
.task-count {
    font-size: 11px; color: var(--text-faint); background: var(--surface-alt);
    border-radius: var(--radius-pill); padding: 2px 8px; margin-left: 6px; font-weight: 500;
}
.task-list {
    display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; min-height: 4px;
    max-height: calc(100vh - 220px); overflow-y: auto;
    scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.task-list::-webkit-scrollbar { width: 3px; }
.task-list::-webkit-scrollbar-track { background: transparent; }
.task-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: var(--radius-pill); }
.task-list::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* ── Task drag ── */
.task-card-wrap { transition: opacity .15s, transform .15s; cursor: grab; }
.task-card-wrap[draggable="false"] { cursor: default; }
.task-card-wrap.drop-before { border-top: 2px solid var(--accent); }
.task-card-wrap.dragging { opacity: 0.35; transform: scale(0.98); cursor: grabbing; }
.drop-placeholder {
    height: 3px; background: var(--accent); border-radius: var(--radius-pill);
    margin: 4px 0; animation: fadeIn .1s;
}
.btn-add-task {
    width: 100%; background: transparent; border: 1px dashed var(--border);
    color: var(--text-faint); padding: 8px; border-radius: var(--radius-sm);
    cursor: pointer; line-height: 1.4; transition: all .15s;
}
.btn-add-task:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-subtle); }

/* ── Task card ── */
.task-card {
    background: var(--task-bg); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 10px 12px;
    transition: border-color .15s, box-shadow .15s;
}
.task-card:hover { border-color: var(--accent); box-shadow: var(--shadow-xs); }
.task-card.completed { opacity: 0.5; }
.task-card.completed .task-name { text-decoration: line-through; color: var(--text-muted); }
.task-card-top { display: flex; align-items: flex-start; gap: 8px; }
.task-card-top .task-name { flex: 1; min-width: 0; }
.task-complete-toggle { display: inline-flex; align-items: center; cursor: pointer; flex-shrink: 0; margin: 0; }
.task-complete-toggle input { display: none; }
.task-checkbox {
    width: 18px; height: 18px; border: 2px solid var(--text-faint);
    border-radius: var(--radius-xs); display: inline-flex; align-items: center;
    justify-content: center; font-size: 12px; font-weight: 700;
    color: transparent; background: transparent; transition: all .15s; flex-shrink: 0;
}
.task-checkbox.checked {
    border-color: var(--accent); background: var(--accent); color: #fff;
}
.task-complete-toggle:hover .task-checkbox:not(.checked) {
    border-color: var(--accent);
    color: color-mix(in srgb, var(--accent) 40%, transparent);
}
.task-name {
    font-size: 13px; font-weight: 500; line-height: 1.4; cursor: pointer;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden; color: var(--text);
}
.task-description {
    font-size: 12px; line-height: 1.4; color: var(--text-muted); margin-top: 3px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden; cursor: pointer;
}
.task-edit-input {
    width: 100%; background: var(--surface); border: 1px solid var(--accent);
    color: var(--text); border-radius: var(--radius-sm); padding: 4px 8px;
    font-family: inherit; line-height: 1.4;
}
.task-meta { display: flex; gap: 6px; align-items: center; margin-top: 6px; flex-wrap: wrap; }
.task-assignee-avatar {
    width: 22px; height: 22px; border-radius: 50%; display: inline-flex;
    align-items: center; justify-content: center; font-size: 9px; font-weight: 600;
    color: white; flex-shrink: 0;
}
.task-est, .task-date { font-size: 11px; color: var(--text-muted); line-height: 1.4; }
.task-actions {
    display: flex; gap: 4px; justify-content: flex-end; margin-top: 4px;
    opacity: 0; transition: opacity .15s;
}
.task-card:hover .task-actions { opacity: 1; }

/* ── Task readonly view ── */
.task-view { display: flex; flex-direction: column; gap: 12px; }
.task-view-field label {
    font-size: 12px; font-weight: 600; letter-spacing: 0.02em;
    color: var(--text-muted); margin-bottom: 4px; display: block; line-height: 1.4;
}
.task-view-value { font-size: 14px; color: var(--text); line-height: 1.5; display: flex; align-items: center; gap: 8px; }
.task-view-description { white-space: pre-wrap; }
.project-color-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; flex-shrink: 0; }

/* ── Show completed toggle ── */
.btn-toggle-completed {
    font-size: 12px; font-weight: 500; padding: 5px 12px;
    background: transparent; border: 1px solid var(--border);
    color: var(--text-muted); cursor: pointer; border-radius: var(--radius-sm);
    transition: all .15s; white-space: nowrap;
}
.btn-toggle-completed:hover { border-color: var(--accent); color: var(--accent); }
.btn-toggle-completed.active {
    border-color: var(--accent); color: var(--accent);
    background: var(--accent-subtle);
}
.btn-toggle-completed-spacer { width: 110px; flex-shrink: 0; }

/* ── People ── */
.section-toolbar { margin-bottom: 16px; display: flex; gap: 8px; align-items: center; }
.people-list { display: flex; flex-direction: column; gap: 8px; max-width: 600px; }
.person-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 14px 16px;
    display: flex; align-items: center; gap: 12px;
    transition: border-color .15s, box-shadow .15s;
}
.person-card:hover { border-color: var(--accent); box-shadow: var(--shadow-xs); }
.person-color-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.person-info { flex: 1; line-height: 1.4; }
.person-info strong { display: block; color: var(--text-strong); font-weight: 600; line-height: 1.4; }
.person-info small { color: var(--text-muted); font-size: 12px; }
.person-actions { display: flex; gap: 4px; }
.weekday-picker { display: flex; gap: 10px; flex-wrap: wrap; }
.weekday-label { display: flex; align-items: center; gap: 4px; cursor: pointer; color: var(--text-muted); font-size: 13px; }
.color-swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.color-swatch {
    width: 28px; height: 28px; border-radius: 50%;
    border: 2px solid transparent; cursor: pointer; padding: 0; transition: transform .1s;
}
.color-swatch:hover { transform: scale(1.15); }
.color-swatch.selected { border-color: white; box-shadow: 0 0 0 2px var(--accent); }

/* ── Holidays ── */
.holidays-view { display: flex; flex-direction: column; gap: 20px; max-width: 560px; }
.holidays-add-form { display: flex; gap: 8px; align-items: flex-start; flex-wrap: wrap; }
.holidays-add-form .form-control { flex: 1; min-width: 180px; }
.holidays-add-form input[type="date"] { flex: 0 0 160px; }
.holidays-add-form textarea.form-control { min-width: 280px; resize: vertical; }
.form-group textarea.form-control { resize: vertical; min-height: 60px; }
.holidays-grid { display: flex; flex-direction: column; gap: 8px; }
.holiday-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 12px 14px;
    display: flex; align-items: center; gap: 14px;
    transition: border-color .15s, box-shadow .15s;
}
.holiday-card:hover { border-color: var(--accent); box-shadow: var(--shadow-xs); }
.holiday-card-date {
    display: flex; flex-direction: column; align-items: center; min-width: 48px;
    background: var(--accent-subtle); border-radius: var(--radius-sm); padding: 8px;
}
.holiday-card-day { font-size: 22px; font-weight: 600; color: var(--accent); line-height: 1; letter-spacing: -0.5px; }
.holiday-card-month {
    font-size: 10px; font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: .04em; margin-top: 2px;
}
.holiday-card-year { font-size: 10px; color: var(--text-faint); }
.holiday-card-info { flex: 1; min-width: 0; }
.holiday-card-name {
    font-size: 14px; font-weight: 600; color: var(--text-strong);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; line-height: 1.4;
}
.holiday-card-weekday { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.empty-state { color: var(--text-faint); font-style: italic; }

/* ── Gantt layout ── */
.gantt-view { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.gantt-toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; flex-shrink: 0; }
.gantt-zoom-controls {
    display: flex; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden;
}
.gantt-zoom-btn {
    background: transparent; border: none; border-right: 1px solid var(--border);
    color: var(--text-muted); padding: 6px 14px; cursor: pointer; font-size: 12px;
    font-weight: 500; transition: all .15s;
}
.gantt-zoom-btn:last-child { border-right: none; }
.gantt-zoom-btn:hover { background: var(--surface-hover); color: var(--text); }
.gantt-zoom-btn.active { background: var(--accent); color: #ffffff; }
.gantt-nav-btn { display: inline-flex; align-items: center; gap: 4px; }
.gantt-nav-icon { display: none; font-size: 12px; }
.gantt-nav-label { }
.gantt-container { flex: 1; min-height: 0; overflow: auto; position: relative; }

/* ── Gantt header ── */
.gantt-sticky-header {
    position: sticky; top: 0; z-index: 5; background: var(--surface);
    border-bottom: 1px solid var(--border); min-width: max-content;
}
.gantt-header-row { display: flex; background: var(--surface); }
.gantt-label-header {
    min-width: 160px; max-width: 160px; padding: 8px 12px;
    font-size: 12px; color: var(--text-faint); font-weight: 600; flex-shrink: 0;
}
.gantt-timeline-header { flex: 1; display: flex; position: relative; white-space: nowrap; }
.gantt-col-header {
    padding: 8px 4px; font-size: 11px; color: var(--text-faint); text-align: center;
    border-right: 1px solid var(--border-subtle); display: inline-flex; flex-direction: column;
    align-items: center; justify-content: center; vertical-align: top; position: relative;
    cursor: default; font-weight: 500;
}
.gantt-col-header.clickable { cursor: pointer; }
.gantt-col-header.clickable:hover { background: var(--accent-subtle); }
.gantt-col-header.gantt-col-holiday { background: var(--stripe-holiday); cursor: pointer; }
.gantt-col-header.gantt-col-weekend { background: var(--stripe-weekend); }

/* ── Gantt rows ── */
.gantt-row {
    position: relative; border-bottom: 1px solid var(--border-subtle);
    display: flex; transition: background .15s; min-width: max-content;
}
.gantt-row.drag-target { background: var(--accent-subtle); }
.gantt-person-label {
    min-width: 160px; max-width: 160px; flex-shrink: 0; height: 100%;
    padding: 0 10px; display: flex; align-items: flex-start; flex-direction: column;
    justify-content: center;
}
.gantt-person-row-header { display: flex; align-items: center; gap: 8px; width: 100%; padding: 4px 0; }
.gantt-person-avatar {
    width: 28px; height: 28px; border-radius: 50%; display: flex;
    align-items: center; justify-content: center; font-size: 11px;
    font-weight: 600; color: white; flex-shrink: 0;
}
.gantt-person-name {
    font-size: 13px; font-weight: 600; line-height: 1.3; white-space: nowrap;
    overflow: hidden; text-overflow: ellipsis; max-width: 108px; color: var(--text-strong);
}
.gantt-person-sub { font-size: 11px; color: var(--text-faint); }
.gantt-row-timeline { position: relative; flex: 1; height: 100%; overflow: hidden; }

/* ── Gantt bars ── */
.gantt-bar {
    position: absolute; border-radius: var(--radius-xs); height: 28px;
    display: flex; align-items: center; cursor: grab; z-index: 2;
    transition: filter .1s, opacity .15s; overflow: hidden;
}
.gantt-bar:hover { filter: brightness(1.12); }
.gantt-bar.completed { opacity: 0.4; filter: saturate(0.3) brightness(1.4); cursor: pointer; }
.gantt-bar.completed:hover { opacity: 0.55; filter: saturate(0.4) brightness(1.5); }
.gantt-bar.completed .gantt-bar-label { opacity: 0.7; text-decoration: line-through; }
.gantt-bar.is-dragging { opacity: 0.35; cursor: grabbing; }
.gantt-bar.bar-preview { opacity: 0.55; pointer-events: none; }
.gantt-bar-segment { flex-shrink: 0; height: 100%; }
.gantt-bar-segment-off { flex-shrink: 0; height: 100%; background: transparent; opacity: 0.4; }
.gantt-bar-label {
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    display: flex; align-items: center; padding: 0 8px;
    font-size: 11px; font-weight: 500; color: white;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    text-shadow: 0 1px 2px rgba(0,0,0,0.4); pointer-events: none;
}

/* ── Gantt column stripes ── */
.gantt-col-weekend { background: var(--stripe-weekend); }
.gantt-col-holiday { background: var(--stripe-holiday); }
.gantt-col-holiday:hover { background: var(--stripe-holiday-hover); }

/* ── Today marker ── */
.gantt-today-marker {
    position: absolute; top: 0; bottom: 0; width: 2px;
    background: var(--today-color); z-index: 10; pointer-events: none;
}
.gantt-today-marker::before {
    content: ''; position: absolute; top: 0; left: -4px;
    border: 5px solid transparent; border-top-color: var(--today-color); border-bottom: none;
}
.gantt-today-marker-no-arrow::before { display: none; }

/* ── Gantt panning ── */
.gantt-panning, .gantt-panning * { cursor: grabbing !important; user-select: none !important; }
.gantt-timeline-wrap { cursor: grab; }

/* ── Event markers ── */
.gantt-event-marker-header {
    position: absolute; bottom: -6px; z-index: 10;
    display: flex; flex-direction: column; align-items: center;
    pointer-events: none; transform: translateX(-50%);
}
.gantt-event-diamond {
    width: 10px; height: 10px; background: var(--event-color);
    transform: rotate(45deg); border-radius: 2px;
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.35); margin-top: 2px;
}
.gantt-event-line {
    position: absolute; top: 0; bottom: 0; width: 2px;
    background: var(--event-color); opacity: 0.35;
    pointer-events: auto; transform: translateX(-50%); z-index: 3;
}

/* ── Vacation stripes ── */
.gantt-vacation-stripe {
    position: absolute; top: 0; bottom: 0;
    background: repeating-linear-gradient(
        135deg,
        rgba(20, 184, 166, 0.08),
        rgba(20, 184, 166, 0.08) 4px,
        transparent 4px,
        transparent 8px
    );
    border-left: 2px solid rgba(20, 184, 166, 0.25);
    border-right: 2px solid rgba(20, 184, 166, 0.25);
    pointer-events: auto; cursor: pointer; z-index: 2;
    border-radius: var(--radius-xs);
}

/* ── Event label row ── */
.gantt-event-label-row {
    display: flex; min-height: 20px; background: var(--surface);
    border-top: 1px solid var(--border-subtle);
}
.gantt-event-label-item {
    position: absolute; transform: translateX(-50%);
    background: var(--event-color); color: #000;
    padding: 2px 8px; border-radius: var(--radius-xs);
    font-size: 10px; font-weight: 600; white-space: nowrap; top: 2px; z-index: 2;
}

/* ── Vacation inline text ── */
.gantt-vacation-text {
    position: absolute; top: 50%; left: 4px; right: 4px;
    transform: translateY(-50%); font-size: 10px; font-weight: 500;
    color: var(--vacation-color); white-space: nowrap; overflow: hidden;
    text-overflow: ellipsis; pointer-events: none; z-index: 3;
}

/* ── CSS Tooltips ── */
.gantt-event-line[data-tooltip] { pointer-events: auto; }
.gantt-event-line[data-tooltip]::after {
    content: attr(data-tooltip); position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%); background: var(--surface-strong);
    color: var(--text-strong); padding: 6px 12px; border-radius: var(--radius-sm);
    font-size: 12px; white-space: nowrap; pointer-events: none;
    opacity: 0; transition: opacity 0.15s; z-index: 20; box-shadow: var(--shadow-md);
}
.gantt-event-line[data-tooltip]:hover::after { opacity: 1; }

/* ── Upcoming panels — gantt view ── */
.upcoming-panels {
    display: flex; align-items: flex-start; gap: 0;
    border-top: 1px solid var(--border); flex-shrink: 0;
}
.upcoming-panels .upcoming-panel { flex: 0 0 50%; display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.upcoming-panels .upcoming-panel-body { overflow-y: auto; max-height: 200px; }

/* ── Board view: right sidebar ── */
.board-upcoming-stack {
    flex: 0 0 280px; display: flex; flex-direction: column;
    background: var(--sidebar-bg); border-left: 1px solid var(--sidebar-border);
    box-shadow: -2px 0 8px rgba(0,0,0,0.04); overflow-y: auto; overflow-x: hidden;
}
.board-upcoming-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 14px; border-bottom: 1px solid var(--sidebar-border); flex-shrink: 0;
}
.board-upcoming-title {
    font-size: 12px; font-weight: 600; letter-spacing: 0.02em;
    color: var(--text-muted);
}
.board-sidebar-collapse-btn {
    background: none; border: none; color: var(--text-faint); cursor: pointer;
    padding: 4px 6px; font-size: 14px; transition: color .15s; line-height: 1;
}
.board-sidebar-collapse-btn:hover { color: var(--accent); }
.board-sidebar-expand-btn {
    background: var(--sidebar-bg); border: none; border-left: 1px solid var(--sidebar-border);
    color: var(--text-faint); cursor: pointer; padding: 12px 6px; font-size: 14px;
    display: flex; align-items: flex-start; transition: color .15s; flex-shrink: 0;
    box-shadow: -2px 0 8px rgba(0,0,0,0.04);
}
.board-sidebar-expand-btn:hover { color: var(--accent); }
.board-upcoming-stack .upcoming-panel {
    display: flex; flex-direction: column; min-height: 0; width: 100%;
    background: var(--sidebar-bg); overflow: auto;
}
.board-upcoming-stack .upcoming-panel + .upcoming-panel {
    border-left: none; border-top: 1px solid var(--sidebar-border);
}

.upcoming-panel { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.upcoming-panel + .upcoming-panel { border-left: 1px solid var(--border); }
.upcoming-panel-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 14px; background: var(--surface-alt); cursor: pointer;
    border-bottom: 1px solid var(--border); user-select: none; flex-shrink: 0;
    transition: background .15s;
}
.upcoming-panel-header:hover { background: var(--surface-hover); }
.upcoming-panel-title { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 13px; }
.upcoming-panel-dot { width: 8px; height: 8px; border-radius: 50%; }
.upcoming-panel-badge {
    padding: 2px 8px; border-radius: var(--radius-pill);
    font-size: 11px; font-weight: 600;
}
.upcoming-panel-badge.events { background: rgba(245, 158, 11, 0.1); color: var(--event-color); }
.upcoming-panel-badge.vacations { background: rgba(20, 184, 166, 0.1); color: var(--vacation-color); }
.upcoming-panel-actions { display: flex; align-items: center; gap: 8px; }
.upcoming-panel-toggle { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--text-muted); cursor: pointer; }
.upcoming-panel-chevron { transition: transform 0.2s; color: var(--text-muted); }
.upcoming-panel-chevron.collapsed { transform: rotate(0deg); }
.upcoming-panel-chevron.expanded { transform: rotate(180deg); }
.upcoming-panel-body { display: flex; flex-direction: column; gap: 6px; padding: 8px 10px; overflow-y: auto; max-height: 240px; }

.upcoming-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); border-left: 3px solid;
    padding: 10px 12px; cursor: pointer; transition: all .15s;
}
.upcoming-card:hover { background: var(--surface-hover); box-shadow: var(--shadow-xs); }
.upcoming-card.event { border-left-color: var(--event-color); }
.upcoming-card.vacation { border-left-color: var(--vacation-color); }
.upcoming-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 3px; }
.upcoming-card-countdown { font-size: 11px; font-weight: 600; }
.upcoming-card-countdown.event { color: var(--event-color); }
.upcoming-card-countdown.vacation { color: var(--vacation-color); }
.upcoming-card-date { font-size: 11px; color: var(--text-muted); }
.upcoming-card-name { font-weight: 600; font-size: 13px; color: var(--text-strong); }
.upcoming-card-description { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.upcoming-card-person { display: flex; align-items: center; gap: 6px; margin-bottom: 2px; }
.upcoming-card-person-avatar {
    width: 18px; height: 18px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 9px; font-weight: 600;
}

/* Panel body defaults */
.upcoming-panel .upcoming-panel-body { overflow-y: auto; }
.board-upcoming-stack .upcoming-panel-body { overflow-y: visible; }

/* ── Gantt add person ── */
.gantt-add-person-wrap { min-width: 160px; max-width: 160px; padding: 6px 10px; }
.gantt-add-person-btn {
    width: 100%; background: transparent; border: 1px dashed var(--border);
    color: var(--text-faint); padding: 6px; border-radius: var(--radius-sm);
    cursor: pointer; margin-top: 8px; font-size: 12px; transition: all .15s;
}
.gantt-add-person-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── People view ── */
.people-view { display: flex; flex-direction: column; gap: 0; }

/* ── Modal animate ── */
.modal-animate { animation: slideUp .2s ease; }

/* ── Error boundary ── */
.blazor-error-boundary { background: #7f1d1d; padding: 1rem; border-radius: var(--radius); color: white; }
.blazor-error-boundary::after { content: "An error has occurred." }

/* ── Auth pages ── */
.auth-page {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; background: var(--bg);
}
.auth-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 40px 48px;
    width: 100%; max-width: 400px; box-shadow: var(--shadow-md);
}
.auth-title {
    font-size: 24px; font-weight: 600; letter-spacing: -0.5px;
    color: var(--text-strong); margin: 0 0 4px;
}
.auth-subtitle {
    font-size: 14px; color: var(--text-muted); margin-bottom: 28px;
}
.auth-error {
    background: rgba(239,68,68,0.06); border: 1px solid rgba(239,68,68,0.2);
    color: var(--danger); padding: 10px 14px; font-size: 13px;
    margin-bottom: 16px; border-radius: var(--radius-sm);
}
[data-theme="dark"] .auth-error {
    background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.2);
    color: #fca5a5;
}

/* ── User menu ── */
.user-menu { display: flex; align-items: center; gap: 10px; margin-left: 16px; }
.user-email {
    font-size: 12px; color: rgba(255,255,255,0.6);
    max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ── Data table ── */
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th {
    text-align: left; padding: 10px 12px; border-bottom: 2px solid var(--border);
    font-weight: 600; font-size: 12px; color: var(--text-muted); letter-spacing: 0.02em;
}
.data-table td {
    padding: 10px 12px; border-bottom: 1px solid var(--border-subtle); color: var(--text);
}

/* ── Backlog section (Board view) ── */
.backlog-section {
    width: 100%; border-top: 1px solid var(--border);
    background: var(--surface-alt); margin-top: 16px;
    border-radius: var(--radius) var(--radius) 0 0;
}
.backlog-header {
    display: flex; align-items: center; gap: 12px; padding: 12px 16px;
    cursor: pointer; user-select: none; transition: background .15s;
}
.backlog-header:hover { background: var(--surface-hover); }
.backlog-header-left { display: flex; align-items: center; gap: 8px; }
.backlog-title {
    font-size: 13px; font-weight: 600; letter-spacing: -0.1px; color: var(--text-strong);
}
.backlog-count-badge {
    background: var(--accent); color: #fff; font-size: 11px; font-weight: 600;
    padding: 1px 8px; min-width: 20px; text-align: center;
    line-height: 1.8; border-radius: var(--radius-pill);
}
.backlog-subtitle { flex: 1; font-size: 12px; color: var(--text-muted); }
.backlog-toggle-btn {
    display: flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600;
    color: var(--text-muted); border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 4px 12px; transition: all .15s;
}
.backlog-header:hover .backlog-toggle-btn { border-color: var(--accent); color: var(--accent); }
.backlog-chevron {
    display: inline-block; font-size: 16px; line-height: 1;
    transform: rotate(90deg); transition: transform .2s;
}
.backlog-chevron.open { transform: rotate(270deg); }
.backlog-toggle-label { font-size: 11px; }

/* ── Sidebar backlog ── */
.sidebar-backlog {
    display: flex; flex-direction: column; gap: 6px; padding: 10px 12px;
    overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.sidebar-backlog::-webkit-scrollbar { width: 3px; }
.sidebar-backlog::-webkit-scrollbar-track { background: transparent; }
.sidebar-backlog::-webkit-scrollbar-thumb { background: var(--border); border-radius: var(--radius-pill); }
.sidebar-backlog::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }
.sidebar-backlog-empty { padding: 24px 16px; color: var(--text-faint); font-size: 13px; text-align: center; }

/* Backlog card grid */
.backlog-card-grid {
    display: flex; flex-wrap: wrap; gap: 10px; padding: 14px 16px 18px; max-width: 220px;
}
.backlog-card {
    display: flex; flex-direction: column; gap: 6px; width: 200px;
    padding: 12px; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm); cursor: grab;
    transition: border-color .15s, box-shadow .15s;
}
.sidebar-backlog .backlog-card { width: auto; }
.backlog-card:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.backlog-card[draggable="false"] { cursor: default; }
.backlog-card.dragging { opacity: 0.35; cursor: grabbing; }
.backlog-card.drop-target { box-shadow: 0 -2px 0 0 var(--accent); }
.backlog-card.completed { opacity: 0.5; }
.backlog-card.completed .backlog-card-name { text-decoration: line-through; color: var(--text-muted); }
.backlog-card-top { display: flex; align-items: flex-start; gap: 8px; }
.backlog-card-top .backlog-card-name { flex: 1; min-width: 0; }
.backlog-card-name {
    font-size: 13px; font-weight: 600; color: var(--text-strong); line-height: 1.4;
    overflow: hidden; text-overflow: ellipsis;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; cursor: pointer;
}
.backlog-card-project {
    font-size: 11px; color: var(--text-muted); letter-spacing: 0.02em;
}
.backlog-task-badges { display: flex; gap: 4px; flex-shrink: 0; }
.backlog-card-badges { display: flex; gap: 4px; flex-wrap: wrap; }
.backlog-missing-badge {
    font-size: 10px; font-weight: 600; letter-spacing: 0.02em;
    padding: 2px 8px; border: 1px solid var(--accent); color: var(--accent);
    white-space: nowrap; border-radius: var(--radius-xs);
}
.backlog-schedule-btn {
    font-size: 12px; font-weight: 600; padding: 5px 14px;
    background: var(--accent); border: none; color: #fff;
    border-radius: var(--radius-sm); cursor: pointer; transition: background .15s;
    white-space: nowrap; flex-shrink: 0;
}
.backlog-schedule-btn:hover { background: var(--accent-hover); }

/* ── Gantt backlog panel ── */
.gantt-backlog-panel {
    border-top: 1px solid var(--border); background: var(--surface-alt);
}
.gantt-backlog-header {
    display: flex; align-items: center; gap: 12px; padding: 12px 16px;
    cursor: pointer; user-select: none; transition: background .15s;
}
.gantt-backlog-header:hover { background: var(--surface-hover); }
.gantt-backlog-header-left { display: flex; align-items: center; gap: 8px; }
.gantt-backlog-title {
    font-size: 13px; font-weight: 600; letter-spacing: -0.1px; color: var(--text-strong);
}
.gantt-backlog-count-badge {
    background: var(--accent); color: #fff; font-size: 11px; font-weight: 600;
    padding: 1px 8px; min-width: 20px; text-align: center;
    line-height: 1.8; border-radius: var(--radius-pill);
}
.gantt-backlog-subtitle { flex: 1; font-size: 12px; color: var(--text-muted); }
.gantt-backlog-toggle-btn {
    display: flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600;
    color: var(--text-muted); border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 4px 12px; transition: all .15s;
}
.gantt-backlog-header:hover .gantt-backlog-toggle-btn { border-color: var(--accent); color: var(--accent); }
.gantt-backlog-list { display: flex; flex-direction: column; }
.gantt-backlog-item {
    display: flex; align-items: center; gap: 10px; padding: 9px 16px;
    border-top: 1px solid var(--border-subtle); font-size: 13px; transition: background .15s;
}
.gantt-backlog-item:hover { background: var(--surface-hover); }
.gantt-backlog-dot { width: 2px; height: 28px; flex-shrink: 0; border-radius: 1px; }
.gantt-backlog-name {
    flex: 1; font-weight: 600; color: var(--text-strong);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.gantt-backlog-assignee {
    width: 22px; height: 22px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 9px; font-weight: 600; color: #fff; flex-shrink: 0;
}
.gantt-backlog-project {
    font-size: 11px; color: var(--text-muted); max-width: 100px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ── Admin pages ── */
.admin-page { max-width: 1100px; margin: 0 auto; }
.admin-page-header { padding: 40px 40px 28px; border-bottom: 1px solid var(--border); }
.admin-page-title {
    font-size: 24px; font-weight: 600; letter-spacing: -0.5px;
    color: var(--text-strong); margin: 0 0 6px;
}
.admin-page-subtitle { font-size: 14px; color: var(--text-muted); margin: 0; }
.admin-section { padding: 28px 40px; border-bottom: 1px solid var(--border-subtle); }
.admin-section-title {
    font-size: 13px; font-weight: 600; letter-spacing: -0.1px;
    color: var(--text-muted); margin: 0 0 20px; padding-bottom: 10px;
    border-bottom: 2px solid var(--accent); display: inline-block;
}
.admin-create-form { max-width: 440px; }
.admin-success-banner {
    background: var(--accent-subtle); border: 1px solid var(--accent);
    color: var(--accent); padding: 10px 14px; font-size: 13px;
    margin-bottom: 16px; border-radius: var(--radius-sm);
}
.admin-back-btn {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 13px; font-weight: 500; color: var(--text-muted);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: transparent; padding: 6px 14px; cursor: pointer;
    margin-bottom: 20px; transition: all .15s;
}
.admin-back-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Gantt backlog drop target */
.gantt-row-timeline.backlog-drop-target {
    background: var(--accent-subtle);
    outline: 2px dashed var(--accent); outline-offset: -2px;
}

/* ── Token management ── */
.token-display {
    display: flex; align-items: center; gap: 10px;
    background: var(--surface-alt); border: 1px solid var(--border);
    padding: 10px 12px; border-radius: var(--radius-sm);
}
.token-value {
    flex: 1; font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
    font-size: 12px; color: var(--accent); word-break: break-all;
}
.role-badge {
    display: inline-block; font-size: 10px; font-weight: 600; letter-spacing: 0.02em;
    padding: 2px 8px; background: var(--surface-alt); color: var(--text-muted);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-xs);
}

/* ── Header user-menu overrides (header is always dark) ── */
.main-header .user-menu .btn-secondary {
    color: rgba(255,255,255,0.8); border-color: rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.04); border-radius: var(--radius-sm);
}
.main-header .user-menu .btn-secondary:hover {
    color: #ffffff; border-color: rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.08);
}
.main-header .user-email { color: rgba(255,255,255,0.6); }

/* ── Focus visible (accessibility) ── */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}


/* ══════════════════════════════════════════════════════════════
   PHONE  (<768px)
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 767.98px) {

    /* ── Layout ── */
    .app-layout { flex-direction: column; height: auto; min-height: 100vh; }
    .main-content { overflow: auto; }

    /* ── Header ── */
    .main-header { padding: 0 12px; height: 48px; gap: 8px; }
    .app-title { font-size: 14px; }

    /* Hamburger — opens nav sidebar from left */
    .mobile-nav-checkbox { display: none; }
    .mobile-hamburger {
        font-size: 18px; color: rgba(255,255,255,0.7); cursor: pointer;
        padding: 8px; line-height: 1; display: flex; align-items: center;
    }
    .mobile-hamburger:hover { color: #fff; }

    /* Overlay — closes menu on tap */
    .mobile-nav-overlay {
        position: fixed; inset: 0; z-index: 199;
        background: rgba(0,0,0,0.5); cursor: pointer;
        opacity: 0; pointer-events: none; transition: opacity 0.25s;
        backdrop-filter: blur(2px); -webkit-backdrop-filter: blur(2px);
    }
    .mobile-nav-checkbox:checked ~ .mobile-nav-overlay {
        opacity: 1; pointer-events: auto;
    }

    /* Sidebar panel */
    .mobile-hamburger-menu {
        position: fixed; top: 0; left: 0; bottom: 0; z-index: 200;
        width: 260px; background: var(--header-bg);
        border-right: 1px solid var(--header-border);
        display: flex; flex-direction: column;
        box-shadow: 4px 0 24px rgba(0,0,0,0.4);
        overflow-y: auto;
        transform: translateX(-100%); transition: transform 0.25s ease;
    }
    .mobile-nav-checkbox:checked ~ .mobile-hamburger-menu {
        transform: translateX(0);
    }
    .mobile-hamburger-menu::before {
        content: 'Navigation'; display: block;
        padding: 20px 24px 12px; font-size: 11px; font-weight: 600;
        letter-spacing: 0.04em; text-transform: uppercase;
        color: var(--text-faint); border-bottom: 1px solid var(--header-border);
    }
    .mobile-hamburger-item {
        display: block; background: none; border: none;
        border-bottom: 1px solid rgba(255,255,255,0.05);
        padding: 14px 24px; text-align: left;
        font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.5);
        cursor: pointer; transition: all 0.15s;
    }
    .mobile-hamburger-item:last-child { border-bottom: none; }
    .mobile-hamburger-item:hover { background: rgba(255,255,255,0.04); color: rgba(255,255,255,0.9); }
    .mobile-hamburger-item.active {
        color: #fff; background: rgba(94,106,210,0.12);
        border-left: 3px solid var(--accent); padding-left: 21px;
    }

    /* Projects button — toggles bottom sheet */
    .mobile-projects-btn {
        display: flex; align-items: center; justify-content: center;
        cursor: pointer; padding: 6px; border: 1px solid rgba(255,255,255,0.1);
        border-radius: var(--radius-sm); transition: all 0.15s;
    }
    .mobile-projects-btn:hover { border-color: rgba(255,255,255,0.2); background: rgba(255,255,255,0.04); }
    .mobile-projects-dot { width: 12px; height: 12px; border-radius: 50%; display: block; }

    .mobile-sidebar-checkbox { display: none; }
    .desktop-tabs { display: none; }

    /* Completed toggle + user menu: hide from header */
    .btn-toggle-completed { display: none; }
    .btn-toggle-completed-spacer { display: none; }
    .header-right > .user-menu { display: none; }

    /* ── Bottom Sheet Sidebar ── */
    .mobile-bottom-sheet-wrapper {
        position: fixed; inset: 0; z-index: 500;
        pointer-events: none; display: flex; flex-direction: column; justify-content: flex-end;
    }
    .mobile-sidebar-checkbox:checked ~ .mobile-bottom-sheet-wrapper {
        pointer-events: auto;
    }
    .mobile-sheet-overlay {
        position: absolute; inset: 0; background: rgba(0,0,0,0.5);
        opacity: 0; transition: opacity 0.25s; cursor: pointer;
        backdrop-filter: blur(2px); -webkit-backdrop-filter: blur(2px);
    }
    .mobile-sidebar-checkbox:checked ~ .mobile-bottom-sheet-wrapper .mobile-sheet-overlay {
        opacity: 1;
    }
    .mobile-bottom-sheet {
        position: relative; z-index: 1;
        background: var(--sidebar-bg); border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        max-height: 70vh; overflow-y: auto;
        transform: translateY(100%); transition: transform 0.3s ease;
        box-shadow: 0 -4px 24px rgba(0,0,0,0.15);
    }
    .mobile-sidebar-checkbox:checked ~ .mobile-bottom-sheet-wrapper .mobile-bottom-sheet {
        transform: translateY(0);
    }
    .mobile-sheet-handle { display: flex; justify-content: center; padding: 8px 0 4px; }
    .mobile-sheet-handle-bar {
        width: 36px; height: 4px; background: var(--text-faint);
        border-radius: var(--radius-pill);
    }
    .mobile-sheet-usermenu {
        display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
        padding: 12px 16px; border-top: 1px solid var(--sidebar-border);
    }
    .mobile-sheet-usermenu .user-email { color: var(--text-muted); font-size: 12px; width: 100%; }

    /* Sidebar inside bottom sheet */
    .sidebar { width: 100%; min-width: 0; border-right: none; overflow: visible; height: auto; }
    .sidebar-expand-btn { display: none; }

    /* ── Board View ── */
    .board-view { flex-direction: column; }
    .board-projects-area {
        flex-wrap: nowrap; gap: 0; padding: 0;
        scroll-snap-type: x mandatory; overflow-x: auto; cursor: auto;
    }
    .board-projects-area .project-card {
        min-width: 100%; max-width: 100%; scroll-snap-align: start;
        border: none; border-bottom: 1px solid var(--border); border-radius: 0;
    }

    /* Dot indicators */
    .mobile-board-dots {
        display: flex; justify-content: center; gap: 6px;
        padding: 10px 0 6px; background: var(--bg);
    }
    .mobile-board-dot {
        width: 8px; height: 8px; border-radius: 50%; opacity: 0.4;
    }
    .mobile-board-dot:first-child { opacity: 1; }

    /* Upcoming panels: full-width bottom strip */
    .board-upcoming-stack {
        flex: none; width: 100%; border-left: none; border-top: 1px solid var(--sidebar-border);
        box-shadow: none; max-height: none; overflow-y: auto;
    }
    .board-upcoming-stack .upcoming-panel-body { max-height: 300px; }
    .board-sidebar-collapse-btn { display: none; }
    .board-sidebar-expand-btn { display: none; }

    /* ── Gantt View ── */
    .gantt-toolbar { flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
    .gantt-nav-label { display: none; }
    .gantt-nav-icon { display: inline; font-size: 12px; }
    .gantt-person-label { min-width: 48px; max-width: 48px; padding: 0 4px; }
    .gantt-label-header { min-width: 48px; max-width: 48px; padding: 4px; font-size: 0; }
    .gantt-person-name { display: none; }
    .gantt-person-sub { display: none; }
    .gantt-person-row-header { justify-content: center; }
    .gantt-person-avatar { width: 28px; height: 28px; font-size: 10px; }
    .gantt-timeline-wrap { touch-action: none; }
    .gantt-container { overflow-x: hidden; }

    /* Gantt upcoming panels: stack vertically */
    .upcoming-panels { flex-direction: column; }
    .upcoming-panels .upcoming-panel { flex: none; width: 100%; }

    /* Disable drag affordances */
    .task-card-wrap { cursor: default; }
    .gantt-bar { cursor: pointer; }
    .backlog-card { cursor: default; }

    /* ── Form Views ── */
    .people-list { max-width: none; }
    .holidays-view { max-width: none; }
    .holidays-add-form { flex-direction: column; }
    .holidays-add-form .form-control { min-width: 0; }
    .holidays-add-form input[type="date"] { flex: 1; }

    /* ── Modals: full-screen ── */
    .modal-overlay { align-items: stretch; backdrop-filter: none; }
    .modal-content {
        min-width: 0; max-width: none; width: 100%; height: 100%;
        border: none; border-radius: 0; animation: fadeIn 0.2s ease;
        display: flex; flex-direction: column;
    }
    .modal-body { flex: 1; overflow-y: auto; }

    /* Touch: always show hover-only actions */
    .task-actions { opacity: 1; }
    .sidebar-project .delete-btn { opacity: 0.6; }

    /* Touch: larger targets */
    .sidebar-project { padding: 12px 13px 12px 16px; min-height: 44px; }
    .form-control { padding: 10px 12px; }
    .btn-primary, .btn-secondary, .btn-danger { padding: 12px 20px; }
    .tab-area { padding: 12px; }

    /* ── Admin pages ── */
    .admin-page-header { padding: 20px 16px 16px; }
    .admin-page-title { font-size: 20px; }
    .admin-section { padding: 16px; }
    .admin-create-form { max-width: none; }

    /* ── Auth pages ── */
    .auth-card { padding: 24px 20px; border-radius: 0; }
}

/* ══════════════════════════════════════════════════════════════
   TABLET  (768px – 1024px)
   ══════════════════════════════════════════════════════════════ */
@media (min-width: 768px) and (max-width: 1024px) {

    /* ── Header ── */
    .main-header { padding: 0 16px; height: 48px; }
    .app-title { font-size: 14px; }

    /* Hide mobile-only elements */
    .mobile-nav-checkbox { display: none; }
    .mobile-hamburger { display: none; }
    .mobile-nav-overlay { display: none; }
    .mobile-hamburger-menu { display: none; }
    .mobile-projects-btn { display: none; }
    .mobile-sidebar-checkbox { display: none; }
    .mobile-board-dots { display: none; }
    .mobile-sheet-handle { display: none; }
    .mobile-sheet-overlay { display: none; }
    .mobile-sheet-usermenu { display: none; }
    .mobile-bottom-sheet-wrapper { display: contents; }
    .mobile-bottom-sheet { display: contents; }

    /* Tablet tabs: tighter */
    .tab-btn { padding: 0 10px; font-size: 12px; }

    /* ── Sidebar ── */
    .sidebar { width: 200px; min-width: 200px; }

    /* ── Board ── */
    .board-projects-area .project-card { min-width: 240px; max-width: 240px; }

    /* Upcoming stack: bottom strip on tablet */
    .board-upcoming-stack {
        flex: none; width: 100%; border-left: none; border-top: 1px solid var(--sidebar-border);
        box-shadow: none;
    }
    .board-view { flex-direction: column; }
    .board-view > .board-projects-area { flex: 1; }

    /* ── Admin ── */
    .admin-page-header { padding: 28px 24px 20px; }
    .admin-section { padding: 20px 24px; }

    /* Compact user menu */
    .user-email { max-width: 100px; }
}

/* ══════════════════════════════════════════════════════════════
   DESKTOP  (>1024px) — hide mobile-only elements
   ══════════════════════════════════════════════════════════════ */
@media (min-width: 1024.02px) {
    .mobile-nav-checkbox { display: none; }
    .mobile-hamburger { display: none; }
    .mobile-nav-overlay { display: none; }
    .mobile-hamburger-menu { display: none; }
    .mobile-projects-btn { display: none; }
    .mobile-sidebar-checkbox { display: none; }
    .mobile-board-dots { display: none; }
    .mobile-sheet-handle { display: none; }
    .mobile-sheet-overlay { display: none; }
    .mobile-sheet-usermenu { display: none; }
    .mobile-bottom-sheet-wrapper { display: contents; }
    .mobile-bottom-sheet { display: contents; }
}