/* ============================================================
   SoftUp — Animations & Design Enhancement Layer
   Fresh, modern, animated UI elements
   ============================================================ */

/* ── Animation Keyframes ───────────────────────────────── */
@keyframes su-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: none; }
    /* NOTE: "transform: none" (not translateY(0)) is intentional.
       transform:translateY(0) persists via animation-fill-mode:both and
       creates a CSS stacking context on .su-content, trapping position:fixed
       Bootstrap modal dialogs inside overflow ancestors → UI freeze on all pages. */
}
@keyframes su-slide-up {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: none; }
}
@keyframes su-scale-in {
    from { opacity: 0; transform: scale(.95); }
    to   { opacity: 1; transform: none; }
}
@keyframes su-slide-right {
    from { opacity: 0; transform: translateX(-10px); }
    to   { opacity: 1; transform: none; }
}
@keyframes su-pulse-urgent {
    0%, 100% { box-shadow: 0 0 0 0 rgba(220,38,38,.5); }
    50%       { box-shadow: 0 0 0 5px rgba(220,38,38,0); }
}
@keyframes su-shimmer {
    0%   { background-position: -200% 0; }
    100% { background-position:  200% 0; }
}
@keyframes su-count-up {
    from { opacity: 0; transform: scale(.7); }
    to   { opacity: 1; transform: none; }
}
@keyframes su-glow-primary {
    0%, 100% { box-shadow: 0 0 0 0 rgba(99,102,241,0); }
    50%       { box-shadow: 0 0 16px 4px rgba(99,102,241,.25); }
}
@keyframes su-grow-width {
    from { width: 0 !important; }
}

/* ── Page content entrance ─────────────────────────────── */
.su-content {
    animation: su-fade-in .25s ease both;
}

/* ── Sidebar enhancements ──────────────────────────────── */
.su-sidebar {
    background: linear-gradient(180deg, #ffffff 0%, #fafbff 100%);
}
.su-nav-item {
    position: relative;
    overflow: hidden;
}
.su-nav-item::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--su-primary);
    border-radius: 0 2px 2px 0;
    transform: scaleY(0);
    transition: transform .2s ease;
}
.su-nav-item.active::before { transform: scaleY(1); }
.su-nav-item.active {
    background: linear-gradient(90deg, rgba(99,102,241,.12) 0%, rgba(99,102,241,.04) 100%);
}
.su-nav-item:hover:not(.active) {
    background: rgba(99,102,241,.05);
}

/* Stagger sidebar items on load */
.su-sidebar-nav .su-nav-item:nth-child(1)   { animation: su-slide-right .2s .05s both; }
.su-sidebar-nav .su-nav-item:nth-child(2)   { animation: su-slide-right .2s .08s both; }
.su-sidebar-nav .su-nav-item:nth-child(3)   { animation: su-slide-right .2s .11s both; }
.su-sidebar-nav .su-nav-item:nth-child(4)   { animation: su-slide-right .2s .14s both; }
.su-sidebar-nav .su-nav-item:nth-child(5)   { animation: su-slide-right .2s .17s both; }
.su-sidebar-nav .su-nav-item:nth-child(6)   { animation: su-slide-right .2s .20s both; }
.su-sidebar-nav .su-nav-item:nth-child(7)   { animation: su-slide-right .2s .23s both; }
.su-sidebar-nav .su-nav-item:nth-child(n+8) { animation: su-slide-right .2s .26s both; }

/* ── Topbar glass effect ─────────────────────────────── */
.su-topbar {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    background: rgba(255,255,255,.94);
}

/* ── Stat cards ────────────────────────────────────────── */
.su-stat-card {
    transition: transform .2s ease, box-shadow .2s ease;
    overflow: hidden;
    position: relative;
}
.su-stat-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 60%, rgba(99,102,241,.04));
    pointer-events: none;
}
.su-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99,102,241,.12);
}
.su-stat-value {
    animation: su-count-up .4s .1s both;
    background: linear-gradient(135deg, var(--su-text) 0%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.su-stat-card--success .su-stat-value {
    background: linear-gradient(135deg, #15803d 0%, #22c55e 100%);
    -webkit-background-clip: text;
    background-clip: text;
}
.su-stat-card--danger .su-stat-value {
    background: linear-gradient(135deg, #b91c1c 0%, #ef4444 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

/* ── Cards ─────────────────────────────────────────────── */
.su-card { transition: box-shadow .2s ease; }

/* ── Task row hover ─────────────────────────────────────── */
.su-task-row {
    transition: background .15s ease;
    animation: su-fade-in .2s both;
}
.su-task-row:hover {
    background: linear-gradient(90deg, rgba(99,102,241,.04) 0%, transparent 100%);
}

/* ── Priority dot — urgent pulses ──────────────────────── */
.su-priority-dot--urgent {
    animation: su-pulse-urgent 2s infinite;
}

/* ── Board cards — lift on hover ───────────────────────── */
.su-task-card {
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    animation: su-slide-up .2s both;
}
.su-task-card:hover {
    transform: translateY(-2px) scale(1.005);
    box-shadow: 0 8px 20px rgba(99,102,241,.15);
    border-color: var(--su-primary);
}
.su-board-col-tasks .su-task-card:nth-child(1)   { animation-delay: .05s; }
.su-board-col-tasks .su-task-card:nth-child(2)   { animation-delay: .10s; }
.su-board-col-tasks .su-task-card:nth-child(3)   { animation-delay: .15s; }
.su-board-col-tasks .su-task-card:nth-child(4)   { animation-delay: .20s; }
.su-board-col-tasks .su-task-card:nth-child(n+5) { animation-delay: .25s; }

/* ── Board columns ─────────────────────────────────────── */
.su-board-col {
    animation: su-slide-up .25s both;
}
.su-board-col:nth-child(1)   { animation-delay: .04s; }
.su-board-col:nth-child(2)   { animation-delay: .08s; }
.su-board-col:nth-child(3)   { animation-delay: .12s; }
.su-board-col:nth-child(4)   { animation-delay: .16s; }
.su-board-col:nth-child(n+5) { animation-delay: .20s; }

/* ── Progress bar animated fill ─────────────────────────── */
.su-progress-fill {
    animation: su-grow-width .7s .15s both cubic-bezier(.4,0,.2,1);
}

/* ── Goal cards ─────────────────────────────────────────── */
.su-goal-card {
    animation: su-scale-in .2s both;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.su-goal-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,.1);
}

/* ── Doc cards ─────────────────────────────────────────── */
.su-doc-card {
    animation: su-scale-in .2s both;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.su-doc-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99,102,241,.15);
}
.su-doc-card-icon {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    color: var(--su-primary);
}

/* ── Dashboard cards ─────────────────────────────────────── */
.su-dash-card {
    animation: su-scale-in .2s both;
    transition: transform .15s ease, box-shadow .15s ease;
}
.su-dash-card:hover { transform: translateY(-2px); }
.su-dash-card-icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, #e0e7ff 0%, #ddd6fe 100%);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 8px;
}

/* ── Primary button enhancements ─────────────────────────── */
.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    border: none;
    box-shadow: 0 2px 8px rgba(99,102,241,.3);
    transition: transform .1s ease, box-shadow .2s ease, filter .2s ease;
}
.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
    box-shadow: 0 4px 14px rgba(99,102,241,.4);
    transform: translateY(-1px);
}
.btn-primary:active {
    transform: translateY(0) scale(.98);
    box-shadow: 0 1px 4px rgba(99,102,241,.3);
}

/* ── Icon buttons ────────────────────────────────────────── */
.su-btn-icon {
    transition: background .15s ease, color .15s ease, transform .1s ease;
}
.su-btn-icon:hover { transform: scale(1.08); }
.su-btn-icon:active { transform: scale(.95); }

/* ── Form controls ───────────────────────────────────────── */
.form-control, .form-select {
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.form-control:focus { background: #fafbff; }

/* ── Comments ────────────────────────────────────────────── */
.su-comment { animation: su-slide-up .2s both; }
.su-comment-body {
    background: linear-gradient(135deg, #f8fafc 0%, #f0f4ff 100%);
    border: 1px solid var(--su-border-light);
}

/* ── Task check ──────────────────────────────────────────── */
.su-task-check {
    transition: color .15s ease, transform .15s ease;
}
.su-task-check:hover { transform: scale(1.2); }
.su-task-check.checked { animation: su-count-up .25s ease both; }

/* ── Task group header ───────────────────────────────────── */
.su-task-group-header {
    background: linear-gradient(90deg, var(--su-bg) 0%, #f8f9ff 100%);
}

/* ── Modal backdrop blur ─────────────────────────────────── */
.su-modal-backdrop {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: su-fade-in .15s ease both;
}
.su-modal { animation: su-scale-in .2s ease both; }

/* ── Bootstrap modal enhancements ───────────────────────── */
.modal-content {
    border: none;
    border-radius: 16px;
    box-shadow: 0 24px 64px rgba(0,0,0,.15);
    animation: su-scale-in .2s ease both;
}
.modal-backdrop {
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
}
.modal-header {
    background: linear-gradient(90deg, #fafbff 0%, #fff 100%);
    border-radius: 16px 16px 0 0;
    border-bottom-color: var(--su-border-light);
}

/* ── Dropdown menus ──────────────────────────────────────── */
.dropdown-menu {
    animation: su-scale-in .15s ease both;
    transform-origin: top left;
    border: 1px solid var(--su-border);
    box-shadow: 0 8px 24px rgba(0,0,0,.1);
    border-radius: var(--su-radius);
}

/* ── Chat ────────────────────────────────────────────────── */
.su-chat-channel-item {
    transition: background .15s ease, color .15s ease, transform .1s ease;
}
.su-chat-channel-item:hover { transform: translateX(2px); }
.su-chat-channel-item.active {
    background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
}
.su-chat-msg { animation: su-slide-up .15s both; }

/* ── Notification panel ──────────────────────────────────── */
.su-notif-panel {
    animation: su-scale-in .15s ease both;
    transform-origin: top right;
}
.su-notif-item { animation: su-fade-in .2s both; }

/* ── User dropdown ───────────────────────────────────────── */
.su-user-dropdown {
    animation: su-scale-in .15s ease both;
    transform-origin: top right;
}

/* ── Auth page ───────────────────────────────────────────── */
@keyframes su-blob-float {
    0%, 100% { transform: translateY(0) scale(1); }
    50%       { transform: translateY(-20px) scale(1.04); }
}
.su-auth-card {
    animation: su-scale-in .35s .1s ease both;
    border: 1px solid rgba(99,102,241,.15);
    box-shadow: 0 24px 64px rgba(99,102,241,.12), 0 4px 16px rgba(0,0,0,.06);
}
.su-auth-features {
    animation: su-fade-in .4s .3s both;
}
.su-auth-feature {
    animation: su-slide-up .3s both;
}
.su-auth-feature:nth-child(1) { animation-delay: .35s; }
.su-auth-feature:nth-child(2) { animation-delay: .40s; }
.su-auth-feature:nth-child(3) { animation-delay: .45s; }
.su-auth-feature:nth-child(4) { animation-delay: .50s; }
.su-auth-wordmark {
    animation: su-fade-in .3s .05s both;
}

/* ── Empty state ─────────────────────────────────────────── */
.su-empty-state { animation: su-fade-in .3s both; }
.su-empty-state i { animation: su-scale-in .4s .1s both; }

/* ── Page title ──────────────────────────────────────────── */
.su-page-title { animation: su-slide-up .2s both; }

/* ── KR card ─────────────────────────────────────────────── */
.su-kr-card {
    animation: su-fade-in .2s both;
    transition: box-shadow .15s ease;
}
.su-kr-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.08); }

/* ── Skeleton loader ─────────────────────────────────────── */
.su-skeleton {
    background: linear-gradient(90deg, var(--su-bg) 25%, var(--su-border-light) 50%, var(--su-bg) 75%);
    background-size: 200% 100%;
    animation: su-shimmer 1.5s infinite;
    border-radius: var(--su-radius-sm);
}

/* ── Quick add button ────────────────────────────────────── */
.su-btn-add-task {
    transition: color .15s ease, background .15s ease, transform .1s ease;
}
.su-btn-add-task:hover {
    background: rgba(99,102,241,.06);
    transform: translateX(2px);
}

/* ── Plan cards ──────────────────────────────────────────── */
.su-plan-card {
    transition: transform .2s ease, box-shadow .2s ease;
    animation: su-scale-in .2s both;
}
.su-plan-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,.1);
}
.su-plan-card--current {
    box-shadow: 0 4px 20px rgba(99,102,241,.2);
}

/* ── Custom scrollbar ────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--su-border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--su-text-light); }

/* ── Selection ───────────────────────────────────────────── */
::selection { background: rgba(99,102,241,.2); color: var(--su-primary-dark); }

/* ── Task meta panel card ────────────────────────────────── */
.su-task-meta-panel {
    background: linear-gradient(135deg, #fafbff 0%, #f0f4ff 100%);
    animation: su-fade-in .25s both;
}

/* ── Workspace stat cards on home ────────────────────────── */
.su-stat-card {
    animation: su-slide-up .25s both;
}
.col-6:nth-child(1) .su-stat-card { animation-delay: .05s; }
.col-6:nth-child(2) .su-stat-card { animation-delay: .10s; }
.col-md-3:nth-child(3) .su-stat-card { animation-delay: .15s; }
.col-md-3:nth-child(4) .su-stat-card { animation-delay: .20s; }

/* ── WS dropdown ─────────────────────────────────────────── */
.su-ws-dropdown {
    animation: su-scale-in .15s ease both;
    transform-origin: top left;
}

/* ── Home hero ───────────────────────────────────────────── */
.su-home-hero {
    animation: su-fade-in .3s ease both;
}
.su-home-greeting {
    background: linear-gradient(135deg, #1e293b 0%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Quick links ─────────────────────────────────────────── */
.su-quick-link {
    animation: su-slide-up .2s both;
}
.su-quick-link:nth-child(1) { animation-delay: .05s; }
.su-quick-link:nth-child(2) { animation-delay: .08s; }
.su-quick-link:nth-child(3) { animation-delay: .11s; }
.su-quick-link:nth-child(4) { animation-delay: .14s; }
.su-quick-link:nth-child(5) { animation-delay: .17s; }
.su-quick-link:nth-child(6) { animation-delay: .20s; }

/* ── Dark mode overrides for hardcoded animation colours ─── */
[data-theme="dark"] .su-sidebar {
    background: #1e293b !important;
}
[data-theme="dark"] .su-topbar {
    background: rgba(30,41,59,.96) !important;
    border-bottom-color: #334155;
}
[data-theme="dark"] .su-nav-item.active {
    background: rgba(99,102,241,.18) !important;
}
[data-theme="dark"] .su-nav-item:hover:not(.active) {
    background: rgba(99,102,241,.08) !important;
}
[data-theme="dark"] .su-task-meta-panel {
    background: #1e293b !important;
}
[data-theme="dark"] .su-comment-body {
    background: #263347 !important;
    border-color: #334155 !important;
}
[data-theme="dark"] .su-task-group-header {
    background: #1e293b !important;
}
[data-theme="dark"] .modal-header {
    background: #1e293b !important;
    border-bottom-color: #334155 !important;
}
[data-theme="dark"] .modal-content {
    border-radius: 16px;
    box-shadow: 0 24px 64px rgba(0,0,0,.5);
}
[data-theme="dark"] .su-doc-card-icon,
[data-theme="dark"] .su-dash-card-icon {
    background: rgba(99,102,241,.2) !important;
}
[data-theme="dark"] .su-stat-value {
    background: linear-gradient(135deg, #e2e8f0 0%, #818cf8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
[data-theme="dark"] .su-stat-card--success .su-stat-value {
    background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    -webkit-background-clip: text;
    background-clip: text;
}
[data-theme="dark"] .su-stat-card--danger .su-stat-value {
    background: linear-gradient(135deg, #fca5a5 0%, #ef4444 100%);
    -webkit-background-clip: text;
    background-clip: text;
}
[data-theme="dark"] .su-home-greeting {
    background: linear-gradient(135deg, #e2e8f0 0%, #818cf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
[data-theme="dark"] .form-control:focus {
    background: #0f172a !important;
}
[data-theme="dark"] .su-ws-btn:hover,
[data-theme="dark"] .su-sidebar-toggle:hover,
[data-theme="dark"] .su-nav-user:hover {
    background: rgba(255,255,255,.06) !important;
}
[data-theme="dark"] .su-ws-dropdown {
    background: #263347 !important;
    border-color: #334155 !important;
}
[data-theme="dark"] .su-ws-item:hover {
    background: rgba(99,102,241,.12) !important;
}
[data-theme="dark"] .su-btn-icon:hover {
    background: rgba(255,255,255,.08) !important;
}
[data-theme="dark"] .su-search-input-wrap {
    background: #0f172a !important;
    border-color: #334155 !important;
}
[data-theme="dark"] .su-search-results {
    background: #1e293b !important;
    border-color: #334155 !important;
}
[data-theme="dark"] .su-search-result:hover {
    background: #263347 !important;
}
[data-theme="dark"] .su-notif-panel,
[data-theme="dark"] .su-notif-item {
    background: #1e293b !important;
    border-color: #334155 !important;
}
[data-theme="dark"] .su-notif-item:hover { background: #263347 !important; }
[data-theme="dark"] .su-notif-item.unread { background: rgba(99,102,241,.12) !important; }
[data-theme="dark"] .dropdown-menu {
    background: #1e293b !important;
    border-color: #334155 !important;
    box-shadow: 0 8px 24px rgba(0,0,0,.4) !important;
}
[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background: #263347 !important;
    color: #e2e8f0 !important;
}
[data-theme="dark"] .su-user-dropdown {
    background: #1e293b !important;
    border-color: #334155 !important;
}
[data-theme="dark"] pre,
[data-theme="dark"] code {
    background: #0f172a !important;
    color: #a5f3fc !important;
    border-color: #334155 !important;
}
[data-theme="dark"] .su-card {
    background: #1e293b !important;
    border-color: #334155 !important;
}
[data-theme="dark"] .su-card-header {
    background: #1e293b !important;
    border-color: #334155 !important;
}
[data-theme="dark"] .su-card-body {
    background: #1e293b !important;
}
[data-theme="dark"] .table-bordered > :not(caption) > * {
    border-color: #334155 !important;
}
[data-theme="dark"] .border-bottom,
[data-theme="dark"] .border-top,
[data-theme="dark"] .border {
    border-color: #334155 !important;
}
[data-theme="dark"] .su-stat-card::after {
    background: linear-gradient(135deg, transparent 60%, rgba(99,102,241,.08));
}
[data-theme="dark"] .btn-outline-secondary {
    color: #94a3b8;
    border-color: #334155;
}
[data-theme="dark"] .btn-outline-secondary:hover {
    background: #334155;
    color: #e2e8f0;
    border-color: #475569;
}
[data-theme="dark"] .btn-outline-primary {
    color: #818cf8;
    border-color: #4f46e5;
}
[data-theme="dark"] .btn-outline-primary:hover {
    background: rgba(99,102,241,.2);
    color: #a5b4fc;
}
[data-theme="dark"] .btn-outline-danger {
    color: #f87171;
    border-color: #ef4444;
}
[data-theme="dark"] .text-muted { color: #94a3b8 !important; }
[data-theme="dark"] .bg-white { background: #1e293b !important; }
[data-theme="dark"] .bg-light,
[data-theme="dark"] .table-light { background: #263347 !important; }
[data-theme="dark"] hr { border-color: #334155; }
[data-theme="dark"] .list-group-item {
    background: #1e293b;
    border-color: #334155;
    color: #e2e8f0;
}
[data-theme="dark"] .list-group-item:hover { background: #263347; }
[data-theme="dark"] .pagination .page-link {
    background: #1e293b;
    border-color: #334155;
    color: #94a3b8;
}
[data-theme="dark"] .pagination .page-item.active .page-link {
    background: var(--su-primary);
    border-color: var(--su-primary);
}
[data-theme="dark"] .nav-tabs .nav-link {
    color: #94a3b8;
    border-color: transparent;
}
[data-theme="dark"] .nav-tabs .nav-link.active {
    background: #1e293b;
    border-color: #334155 #334155 #1e293b;
    color: #e2e8f0;
}
[data-theme="dark"] .nav-tabs {
    border-bottom-color: #334155;
}
[data-theme="dark"] select option {
    background: #1e293b;
    color: #e2e8f0;
}