:root{

--primary:#6366f1;
--primary-dark:#4f46e5;
--secondary:#8b5cf6;
--success:#10b981;
--warning:#f59e0b;
--danger:#ef4444;

--radius-sm:12px;
--radius-md:18px;
--radius-lg:24px;
--radius-xl:32px;

--shadow-sm:0 4px 10px rgba(0,0,0,.08);
--shadow-md:0 10px 30px rgba(0,0,0,.12);
--shadow-lg:0 25px 60px rgba(0,0,0,.18);

--transition:all .35s cubic-bezier(.4,0,.2,1);

--bg:#f5f7fb;
--bg-secondary:#ffffff;
--text:#111827;
--text-secondary:#6b7280;
--border:rgba(0,0,0,.08);

--glass:rgba(255,255,255,.65);
--glass-border:rgba(255,255,255,.4);

--sidebar-width:280px;
}

[data-theme="dark"]{

--bg:#070b14;
--bg-secondary:#111827;
--text:#f8fafc;
--text-secondary:#94a3b8;
--border:rgba(255,255,255,.08);

--glass:rgba(15,23,42,.7);
--glass-border:rgba(255,255,255,.06);
}

*{
margin:0;
padding:0;
box-sizing:border-box;
}

html{
scroll-behavior:smooth;
}

body{
font-family:'Inter',sans-serif;
background:var(--bg);
color:var(--text);
overflow-x:hidden;
transition:var(--transition);
min-height:100vh;
}

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

button{
cursor:pointer;
border:none;
outline:none;
}

input,
textarea,
select{
background:var(--bg-secondary);
color:var(--text);
border:1px solid var(--border);
padding:14px 16px;
border-radius:14px;
outline:none;
transition:var(--transition);
width:100%;
}

input:focus,
textarea:focus,
select:focus{
border-color:var(--primary);
box-shadow:0 0 0 4px rgba(99,102,241,.15);
}

.hidden{
display:none !important;
}

.glass{
background:var(--glass);
backdrop-filter:blur(20px);
-webkit-backdrop-filter:blur(20px);
border:1px solid var(--glass-border);
box-shadow:var(--shadow-md);
}

.floating-gradient{
position:fixed;
border-radius:50%;
filter:blur(120px);
opacity:.35;
pointer-events:none;
z-index:-1;
animation:float 18s linear infinite;
}

.gradient-one{
width:500px;
height:500px;
background:#6366f1;
top:-120px;
left:-100px;
}

.gradient-two{
width:420px;
height:420px;
background:#8b5cf6;
right:-120px;
top:30%;
}

.gradient-three{
width:380px;
height:380px;
background:#10b981;
bottom:-150px;
left:30%;
}

@keyframes float{

0%{
transform:translateY(0px) translateX(0px);
}

50%{
transform:translateY(60px) translateX(40px);
}

100%{
transform:translateY(0px) translateX(0px);
}

}

#loading-screen{
position:fixed;
inset:0;
background:var(--bg);
display:flex;
align-items:center;
justify-content:center;
z-index:99999;
transition:1s;
}

.loader-container{
position:relative;
text-align:center;
}

.loader-ring{
width:140px;
height:140px;
border-radius:50%;
border:6px solid transparent;
border-top-color:var(--primary);
position:absolute;
left:50%;
top:50%;
transform:translate(-50%,-50%);
animation:spin 1.2s linear infinite;
}

.ring-two{
width:180px;
height:180px;
border-top-color:var(--secondary);
animation-duration:2s;
}

.loader-logo{
font-size:36px;
font-weight:800;
}

@keyframes spin{

from{
transform:translate(-50%,-50%) rotate(0);
}

to{
transform:translate(-50%,-50%) rotate(360deg);
}

}

#app{
min-height:100vh;
}

#auth-screen{
min-height:100vh;
display:flex;
align-items:center;
justify-content:center;
padding:40px;
}

.auth-wrapper{
width:100%;
max-width:1400px;
display:grid;
grid-template-columns:1.1fr 1fr;
gap:50px;
align-items:center;
}

.auth-brand h1{
font-size:4rem;
font-weight:800;
margin-bottom:12px;
}

.auth-brand p{
color:var(--text-secondary);
font-size:1.05rem;
max-width:550px;
line-height:1.8;
}

.brand-logo{
width:90px;
height:90px;
border-radius:28px;
background:linear-gradient(135deg,var(--primary),var(--secondary));
display:flex;
align-items:center;
justify-content:center;
font-size:2rem;
font-weight:800;
color:#fff;
margin-bottom:20px;
}

.brand-features{
margin-top:40px;
display:grid;
grid-template-columns:repeat(3,1fr);
gap:18px;
}

.feature-card{
padding:22px;
border-radius:22px;
background:var(--glass);
backdrop-filter:blur(20px);
border:1px solid var(--glass-border);
}

.feature-card h4{
margin-bottom:8px;
}

.feature-card span{
font-size:.92rem;
color:var(--text-secondary);
}

.auth-panel{
padding:40px;
border-radius:32px;
}

.auth-tabs{
display:flex;
gap:10px;
margin-bottom:30px;
}

.auth-tab{
flex:1;
padding:14px;
border-radius:16px;
background:transparent;
color:var(--text);
font-weight:600;
}

.auth-tab.active{
background:var(--primary);
color:#fff;
}

.auth-form h2{
margin-bottom:24px;
}

.form-group{
margin-bottom:18px;
}

.form-group label{
display:block;
margin-bottom:8px;
font-weight:600;
}

.password-strength{
height:8px;
background:rgba(0,0,0,.08);
border-radius:100px;
overflow:hidden;
margin-top:10px;
}

#password-meter{
height:100%;
width:0%;
transition:var(--transition);
background:var(--danger);
}

.primary-btn,
.secondary-btn,
.danger-btn{
padding:14px 20px;
border-radius:16px;
font-weight:700;
transition:var(--transition);
}

.primary-btn{
background:var(--primary);
color:white;
}

.primary-btn:hover{
transform:translateY(-2px);
box-shadow:0 12px 30px rgba(99,102,241,.35);
}

.secondary-btn{
background:transparent;
border:1px solid var(--border);
color:var(--text);
}

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

.checkbox{
display:flex;
align-items:center;
gap:10px;
}

.remember-row{
margin-bottom:20px;
}

#main-app{
display:flex;
min-height:100vh;
}

#sidebar{
width:var(--sidebar-width);
padding:24px;
position:sticky;
top:0;
height:100vh;
display:flex;
flex-direction:column;
justify-content:space-between;
transition:var(--transition);
}

.sidebar-top{
display:flex;
align-items:center;
justify-content:space-between;
margin-bottom:30px;
}

.sidebar-brand{
display:flex;
align-items:center;
gap:14px;
}

.sidebar-logo{
width:52px;
height:52px;
border-radius:16px;
background:linear-gradient(
135deg,
var(--primary),
var(--secondary)
);
display:flex;
align-items:center;
justify-content:center;
font-weight:800;
color:white;
}

.sidebar-nav{
display:flex;
flex-direction:column;
gap:10px;
}

.nav-item{
display:flex;
align-items:center;
gap:14px;
padding:14px 18px;
border-radius:18px;
background:transparent;
color:var(--text);
font-weight:600;
transition:var(--transition);
}

.nav-item:hover{
background:rgba(99,102,241,.12);
}

.nav-item.active{
background:var(--primary);
color:white;
}

.app-content{
flex:1;
padding:24px;
overflow:hidden;
}

.topbar{
display:flex;
justify-content:space-between;
align-items:center;
padding:18px 24px;
border-radius:24px;
margin-bottom:24px;
}

.topbar-left{
display:flex;
align-items:center;
gap:16px;
}

.topbar-right{
display:flex;
align-items:center;
gap:12px;
}

.search-box{
width:350px;
}

.icon-btn{
width:48px;
height:48px;
display:flex;
align-items:center;
justify-content:center;
border-radius:14px;
background:var(--bg-secondary);
color:var(--text);
transition:var(--transition);
}

.icon-btn:hover{
transform:translateY(-2px);
}

#profile-menu{
position:relative;
}

#user-avatar{
width:48px;
height:48px;
border-radius:50%;
background:linear-gradient(
135deg,
var(--primary),
var(--secondary)
);
display:flex;
align-items:center;
justify-content:center;
font-weight:700;
color:white;
}

#profile-btn{
background:none;
}

#profile-dropdown{
position:absolute;
right:0;
top:60px;
width:220px;
padding:16px;
background:var(--bg-secondary);
border-radius:18px;
box-shadow:var(--shadow-lg);
border:1px solid var(--border);
z-index:100;
}

#view-container{
position:relative;
}

.view{
display:none;
animation:fadeUp .35s ease;
}

.active-view{
display:block;
}

@keyframes fadeUp{

from{
opacity:0;
transform:translateY(10px);
}

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

}

.page-header{
display:flex;
align-items:center;
justify-content:space-between;
margin-bottom:28px;
gap:20px;
}

.page-header h1{
font-size:2rem;
margin-bottom:6px;
}

.page-header p{
color:var(--text-secondary);
}

.stats-grid{
display:grid;
grid-template-columns:repeat(4,1fr);
gap:20px;
margin-bottom:24px;
}

.stat-card{
padding:26px;
border-radius:26px;
}

.stat-card h4{
color:var(--text-secondary);
margin-bottom:10px;
}

.stat-card h2{
font-size:2.2rem;
font-weight:800;
}

.dashboard-grid{
display:grid;
grid-template-columns:repeat(2,1fr);
gap:20px;
}

.widget{
padding:24px;
border-radius:28px;
min-height:340px;
}

.progress-ring-wrapper{
display:flex;
align-items:center;
justify-content:center;
position:relative;
height:260px;
}

.progress-ring{
transform:rotate(-90deg);
}

.ring-bg{
fill:none;
stroke:rgba(148,163,184,.2);
stroke-width:16;
}

.ring-progress{
fill:none;
stroke:var(--primary);
stroke-width:16;
stroke-linecap:round;
stroke-dasharray:565;
stroke-dashoffset:565;
transition:1s;
}

.progress-center{
position:absolute;
font-size:2rem;
font-weight:800;
}

.productivity-score{
font-size:5rem;
font-weight:800;
text-align:center;
margin:20px 0;
}

.mini-chart{
display:flex;
align-items:flex-end;
gap:8px;
height:120px;
margin-top:20px;
}
.mini-chart .bar{
flex:1;
border-radius:12px 12px 0 0;
background:linear-gradient(
180deg,
var(--primary),
var(--secondary)
);
animation:growBar .8s ease;
}

@keyframes growBar{
from{
height:0;
}
}

.toolbar{
padding:18px;
border-radius:24px;
display:grid;
grid-template-columns:2fr repeat(3,1fr) auto auto;
gap:12px;
margin-bottom:20px;
}

.bulk-actions{
display:flex;
gap:12px;
margin-bottom:20px;
flex-wrap:wrap;
}

.task-grid{
display:grid;
grid-template-columns:repeat(auto-fill,minmax(320px,1fr));
gap:20px;
}

.task-list{
display:flex;
flex-direction:column;
gap:16px;
}

.task-card{
padding:22px;
border-radius:24px;
position:relative;
overflow:hidden;
background:var(--glass);
border:1px solid var(--glass-border);
backdrop-filter:blur(18px);
transition:var(--transition);
}

.task-card:hover{
transform:translateY(-6px);
box-shadow:var(--shadow-lg);
}

.task-card::before{
content:"";
position:absolute;
left:0;
top:0;
width:5px;
height:100%;
background:var(--primary);
}

.task-card.high::before{
background:var(--danger);
}

.task-card.medium::before{
background:var(--warning);
}

.task-card.low::before{
background:var(--success);
}

.task-header{
display:flex;
justify-content:space-between;
gap:14px;
margin-bottom:14px;
}

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

.task-description{
color:var(--text-secondary);
line-height:1.6;
margin-bottom:16px;
}

.task-meta{
display:flex;
flex-wrap:wrap;
gap:8px;
margin-bottom:16px;
}

.badge{
padding:8px 12px;
border-radius:999px;
font-size:.78rem;
font-weight:700;
}

.badge-priority-high{
background:rgba(239,68,68,.15);
color:var(--danger);
}

.badge-priority-medium{
background:rgba(245,158,11,.15);
color:var(--warning);
}

.badge-priority-low{
background:rgba(16,185,129,.15);
color:var(--success);
}

.badge-status{
background:rgba(99,102,241,.12);
color:var(--primary);
}

.task-footer{
display:flex;
justify-content:space-between;
align-items:center;
gap:10px;
}

.task-actions{
display:flex;
gap:8px;
flex-wrap:wrap;
}

.action-btn{
padding:10px 12px;
border-radius:12px;
background:var(--bg-secondary);
color:var(--text);
transition:var(--transition);
}

.action-btn:hover{
transform:translateY(-2px);
}

.task-checkbox{
width:18px;
height:18px;
accent-color:var(--primary);
}

.pagination{
display:flex;
justify-content:center;
gap:10px;
margin-top:30px;
}

.page-btn{
width:44px;
height:44px;
border-radius:12px;
background:var(--bg-secondary);
color:var(--text);
}

.page-btn.active{
background:var(--primary);
color:#fff;
}

.kanban-board{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:20px;
align-items:start;
}

.kanban-column{
padding:18px;
border-radius:26px;
min-height:650px;
}

.kanban-header{
display:flex;
align-items:center;
justify-content:space-between;
margin-bottom:20px;
}

.kanban-count{
padding:6px 12px;
border-radius:999px;
background:rgba(99,102,241,.15);
color:var(--primary);
font-weight:700;
}

.kanban-body{
display:flex;
flex-direction:column;
gap:14px;
min-height:560px;
}

.kanban-task{
padding:18px;
border-radius:18px;
background:var(--bg-secondary);
cursor:grab;
border:1px solid var(--border);
transition:var(--transition);
}

.kanban-task:hover{
transform:translateY(-4px);
}

.kanban-task.dragging{
opacity:.45;
transform:scale(.98);
}

.drop-zone-active{
outline:2px dashed var(--primary);
outline-offset:4px;
}

.analytics-grid{
display:grid;
grid-template-columns:repeat(2,1fr);
gap:20px;
}

.analytics-card{
padding:24px;
border-radius:26px;
min-height:280px;
}

.analytics-card.full-width{
grid-column:1/-1;
}

.analytics-value{
font-size:4rem;
font-weight:800;
margin-top:40px;
text-align:center;
}

.bar-chart{
height:220px;
display:flex;
align-items:flex-end;
gap:12px;
margin-top:20px;
}

.bar-chart .bar{
flex:1;
border-radius:16px 16px 0 0;
background:linear-gradient(
180deg,
var(--primary),
var(--secondary)
);
}

.distribution-chart{
display:flex;
flex-direction:column;
gap:16px;
margin-top:25px;
}

.distribution-item{
display:flex;
align-items:center;
gap:12px;
}

.distribution-label{
width:140px;
font-weight:600;
}

.distribution-progress{
flex:1;
height:14px;
border-radius:999px;
background:rgba(148,163,184,.18);
overflow:hidden;
}

.distribution-fill{
height:100%;
border-radius:999px;
background:linear-gradient(
90deg,
var(--primary),
var(--secondary)
);
}

.trend-chart{
height:250px;
display:flex;
align-items:flex-end;
gap:10px;
margin-top:25px;
}

.trend-point{
flex:1;
border-radius:14px 14px 0 0;
background:linear-gradient(
180deg,
var(--secondary),
var(--primary)
);
}

.settings-grid{
display:grid;
grid-template-columns:repeat(2,1fr);
gap:20px;
}

.settings-card{
padding:24px;
border-radius:26px;
display:flex;
flex-direction:column;
gap:16px;
}

.import-btn{
padding:14px 20px;
border-radius:16px;
background:var(--primary);
color:white;
font-weight:700;
display:inline-flex;
justify-content:center;
align-items:center;
}

.modal{
position:fixed;
inset:0;
display:flex;
align-items:center;
justify-content:center;
z-index:9999;
}

.modal-backdrop{
position:absolute;
inset:0;
background:rgba(0,0,0,.45);
backdrop-filter:blur(8px);
}

.modal-content{
position:relative;
width:min(92%,760px);
padding:28px;
border-radius:30px;
max-height:90vh;
overflow:auto;
}

.confirm-box{
max-width:500px;
text-align:center;
}

.modal-header{
display:flex;
justify-content:space-between;
align-items:center;
margin-bottom:20px;
}

.close-modal,
.close-search{
width:44px;
height:44px;
border-radius:12px;
background:var(--bg-secondary);
font-size:1.5rem;
color:var(--text);
}

.form-row{
display:grid;
grid-template-columns:1fr 1fr;
gap:16px;
}

.modal-actions{
display:flex;
justify-content:flex-end;
gap:12px;
margin-top:20px;
}

#search-modal-input{
margin-bottom:20px;
}

#search-results{
display:flex;
flex-direction:column;
gap:12px;
}

.search-result{
padding:14px;
border-radius:16px;
background:var(--bg-secondary);
border:1px solid var(--border);
}

.empty-state{
padding:80px 20px;
text-align:center;
color:var(--text-secondary);
}

.empty-state h3{
margin-bottom:10px;
color:var(--text);
}

.skeleton{
position:relative;
overflow:hidden;
background:rgba(148,163,184,.15);
border-radius:20px;
min-height:180px;
}

.skeleton::after{
content:"";
position:absolute;
inset:0;
transform:translateX(-100%);
background:
linear-gradient(
90deg,
transparent,
rgba(255,255,255,.25),
transparent
);
animation:skeleton 1.3s infinite;
}

@keyframes skeleton{
100%{
transform:translateX(100%);
}
}

.ripple{
position:absolute;
border-radius:50%;
transform:scale(0);
animation:ripple .6s linear;
background:rgba(255,255,255,.4);
pointer-events:none;
}

@keyframes ripple{
to{
transform:scale(4);
opacity:0;
}
}

.overdue{
color:var(--danger);
font-weight:700;
}

.completed-task{
opacity:.7;
}

.completed-task .task-title{
text-decoration:line-through;
}

::-webkit-scrollbar{
width:10px;
height:10px;
}

::-webkit-scrollbar-thumb{
background:var(--primary);
border-radius:999px;
}

::-webkit-scrollbar-track{
background:transparent;
}

@media (max-width:1200px){

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

.dashboard-grid{
grid-template-columns:1fr;
}

.analytics-grid{
grid-template-columns:1fr;
}

.settings-grid{
grid-template-columns:1fr;
}

.kanban-board{
grid-template-columns:1fr;
}

}

@media (max-width:900px){

.auth-wrapper{
grid-template-columns:1fr;
}

.brand-features{
grid-template-columns:1fr;
}

.toolbar{
grid-template-columns:1fr;
}

.form-row{
grid-template-columns:1fr;
}

.search-box{
width:100%;
}

#sidebar{
position:fixed;
left:-100%;
top:0;
z-index:999;
}

#sidebar.active{
left:0;
}

.app-content{
padding:16px;
}

}

@media (max-width:600px){

.stats-grid{
grid-template-columns:1fr;
}

.task-grid{
grid-template-columns:1fr;
}

.topbar{
padding:14px;
}

.page-header{
flex-direction:column;
align-items:flex-start;
}

.modal-content{
padding:20px;
}

.auth-brand h1{
font-size:2.5rem;
}

.productivity-score{
font-size:3rem;
}

.analytics-value{
font-size:2.5rem;
}

}

.theme-transition,
.theme-transition *{
transition:
background-color .35s ease,
color .35s ease,
border-color .35s ease !important;
}

.view-fade-enter{
opacity:0;
transform:translateY(10px);
}

.view-fade-active{
opacity:1;
transform:translateY(0);
}

#pagination{
display:flex;
justify-content:center;
gap:10px;
margin-top:24px;
flex-wrap:wrap;
}

#mobile-menu-btn{
display:none;
}

@media(max-width:900px){

#mobile-menu-btn{
display:flex;
}

}

.shortcut-hint{
font-size:.85rem;
color:var(--text-secondary);
}

.notification-dot{
position:absolute;
width:10px;
height:10px;
border-radius:50%;
background:var(--danger);
top:10px;
right:10px;
}

.fade-in{
animation:fadeIn .4s ease;
}

@keyframes fadeIn{

from{
opacity:0;
}

to{
opacity:1;
}

}