/* =====================================================================
   Application styles. Uses only tokens from variables.css so both
   themes work without touching this file.
   ===================================================================== */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--info); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { margin: 0 0 .5rem; font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: 1.7rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }

/* ------------------------------------------------------------------ App shell */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: var(--bg-elevated);
  border-right: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  padding: 1.1rem .9rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex; align-items: center; gap: .6rem;
  padding: .4rem .6rem 1.2rem;
  font-weight: 750; font-size: 1.15rem;
}
.brand .logo {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-press));
  display: grid; place-items: center; color: #fff; font-weight: 800;
  box-shadow: var(--shadow-sm);
}

.nav { display: flex; flex-direction: column; gap: 2px; margin-top: .4rem; }
.nav-label {
  font-size: .68rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-faint); padding: 1rem .6rem .35rem;
}
.nav a {
  display: flex; align-items: center; gap: .7rem;
  padding: .6rem .7rem; border-radius: 10px;
  color: var(--text-muted); font-weight: 550; text-decoration: none;
  transition: background .15s, color .15s;
}
.nav a:hover { background: var(--panel-hover); color: var(--text); }
.nav a.active {
  background: var(--accent-soft); color: var(--accent);
}
.nav a .ico { width: 18px; height: 18px; flex: 0 0 18px; }
.nav a .badge {
  margin-left: auto; background: var(--accent); color: #fff;
  font-size: .7rem; font-weight: 700; border-radius: 999px; padding: 1px 7px;
}

.sidebar-foot { margin-top: auto; padding-top: .8rem; border-top: 1px solid var(--border-soft); }

/* ------------------------------------------------------------------ Main area */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 1rem;
  padding: 0 1.6rem;
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg-elevated);
  position: sticky; top: 0; z-index: 20;
}
.topbar .page-title { font-size: 1.2rem; font-weight: 700; }
.topbar .spacer { flex: 1; }

.search {
  display: flex; align-items: center; gap: .5rem;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 999px; padding: .45rem .9rem; min-width: 220px;
  color: var(--text-muted);
}
.search input {
  background: transparent; border: 0; outline: 0; color: var(--text);
  width: 100%; font-size: .9rem;
}

.icon-btn {
  width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center; cursor: pointer;
  background: var(--panel); border: 1px solid var(--border);
  color: var(--text-muted); position: relative;
}
.icon-btn:hover { color: var(--text); background: var(--panel-hover); }
.icon-btn .dot {
  position: absolute; top: 8px; right: 9px; width: 8px; height: 8px;
  border-radius: 50%; background: var(--danger); border: 2px solid var(--bg-elevated);
}

.avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: linear-gradient(135deg, var(--info), var(--accent));
  color: #fff; display: grid; place-items: center; font-weight: 700; font-size: .8rem;
}

.content { padding: 1.6rem; flex: 1; }

/* ------------------------------------------------------------------ Cards / panels */
.panel {
  background: var(--panel); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 1.2rem; box-shadow: var(--shadow-sm);
}
.panel + .panel { margin-top: 1.2rem; }
.panel-head {
  display: flex; align-items: center; gap: .8rem; margin-bottom: 1rem;
}
.panel-head h2, .panel-head h3 { margin: 0; }
.panel-head .spacer { flex: 1; }

.grid { display: grid; gap: 1.2rem; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

/* KPI stat cards */
.stat {
  background: var(--panel); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 1.1rem 1.2rem; box-shadow: var(--shadow-sm);
}
.stat .label { color: var(--text-muted); font-size: .82rem; font-weight: 550; }
.stat .value { font-size: 1.8rem; font-weight: 750; margin-top: .25rem; letter-spacing: -0.02em; }
.stat .sub { font-size: .78rem; color: var(--text-faint); margin-top: .2rem; }
.stat .value .trend { font-size: .8rem; font-weight: 650; margin-left: .4rem; }
.trend.up { color: var(--success); }
.trend.down { color: var(--danger); }

/* ------------------------------------------------------------------ Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .55rem 1rem; border-radius: 10px; font-weight: 600; font-size: .9rem;
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: background .15s, border .15s, transform .05s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); text-decoration: none; }
.btn-ghost { background: var(--panel); color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--panel-hover); text-decoration: none; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.08); text-decoration: none; }
.btn-sm { padding: .38rem .7rem; font-size: .82rem; }
.btn-icon { padding: .5rem; }

/* ------------------------------------------------------------------ Forms */
.form-row { margin-bottom: 1rem; }
.form-row label { display: block; font-size: .84rem; font-weight: 600; margin-bottom: .35rem; color: var(--text-muted); }
.form-row .req { color: var(--danger); }
input[type=text], input[type=email], input[type=password], input[type=date],
input[type=number], input[type=search], select, textarea {
  width: 100%; padding: .6rem .8rem; font-size: .92rem;
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; outline: none;
  transition: border .15s, box-shadow .15s; font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { min-height: 110px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field-error { color: var(--danger); font-size: .8rem; margin-top: .3rem; }
.help { color: var(--text-faint); font-size: .78rem; margin-top: .3rem; }

/* ------------------------------------------------------------------ Tables */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }
table.data { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.data th {
  text-align: left; padding: .7rem .9rem; color: var(--text-muted);
  font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em;
  border-bottom: 1px solid var(--border);
}
table.data th a { color: inherit; }
table.data td { padding: .75rem .9rem; border-bottom: 1px solid var(--border-soft); vertical-align: middle; }
table.data tbody tr:nth-child(even) { background: var(--panel-2); }
table.data tbody tr:hover { background: var(--panel-hover); }

/* ------------------------------------------------------------------ Badges / chips */
.badge {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .2rem .6rem; border-radius: 999px; font-size: .76rem; font-weight: 650;
}
.chip {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .15rem .55rem; border-radius: 6px; font-size: .75rem;
  background: var(--panel-2); color: var(--text-muted); border: 1px solid var(--border);
}
.dot-status { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

.prio-low    { color: var(--text-muted); }
.prio-medium { color: var(--info); }
.prio-high   { color: var(--warning); }
.prio-urgent { color: var(--danger); }

.avatar-sm {
  width: 26px; height: 26px; border-radius: 50%; font-size: .7rem;
  display: inline-grid; place-items: center; color: #fff; font-weight: 700;
  background: linear-gradient(135deg, var(--info), var(--accent));
}
.avatar-stack { display: inline-flex; }
.avatar-stack .avatar-sm { margin-left: -8px; border: 2px solid var(--panel); }
.avatar-stack .avatar-sm:first-child { margin-left: 0; }

/* ------------------------------------------------------------------ Flash */
.flash {
  display: flex; align-items: center; gap: .6rem; padding: .8rem 1rem;
  border-radius: 10px; margin-bottom: 1.2rem; font-weight: 550; font-size: .9rem;
  border: 1px solid transparent;
}
.flash.success { background: var(--success-soft); color: var(--success); border-color: var(--success); }
.flash.error   { background: var(--danger-soft);  color: var(--danger);  border-color: var(--danger); }
.flash.info    { background: var(--info-soft);    color: var(--info);    border-color: var(--info); }

/* ------------------------------------------------------------------ Filters bar */
.toolbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; margin-bottom: 1.1rem;
}
.toolbar select, .toolbar input { width: auto; min-width: 150px; }
.toolbar .spacer { flex: 1; }

/* ------------------------------------------------------------------ Kanban */
.kanban { display: flex; gap: 1rem; overflow-x: auto; padding-bottom: .5rem; align-items: flex-start; }
.kcol {
  flex: 0 0 300px; background: var(--bg-elevated); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: .8rem; min-height: 120px;
}
.kcol-head { display: flex; align-items: center; gap: .5rem; margin-bottom: .8rem; font-weight: 650; }
.kcol-head .count {
  margin-left: auto; background: var(--panel-2); color: var(--text-muted);
  font-size: .72rem; padding: 1px 8px; border-radius: 999px;
}
.kcards { display: flex; flex-direction: column; gap: .6rem; min-height: 40px; }
.kcard {
  background: var(--panel); border: 1px solid var(--border-soft); border-radius: 10px;
  padding: .75rem .8rem; cursor: grab; box-shadow: var(--shadow-sm);
}
.kcard:hover { border-color: var(--border); }
.kcard.sortable-ghost { opacity: .4; }
.kcard .kc-title { font-weight: 600; font-size: .9rem; margin-bottom: .5rem; }
.kcard .kc-meta { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }

/* ------------------------------------------------------------------ Detail page */
.detail-grid { display: grid; grid-template-columns: 1fr 320px; gap: 1.2rem; align-items: start; }
.meta-list { display: flex; flex-direction: column; gap: .9rem; }
.meta-list .row { display: flex; align-items: center; gap: .6rem; }
.meta-list .row .k { color: var(--text-muted); font-size: .82rem; width: 110px; flex: 0 0 110px; }

.comment { display: flex; gap: .7rem; padding: .8rem 0; border-bottom: 1px solid var(--border-soft); }
.comment .body { flex: 1; }
.comment .who { font-weight: 650; font-size: .88rem; }
.comment .when { color: var(--text-faint); font-size: .76rem; }
.comment.reply { margin-left: 2.4rem; }

.checklist-item { display: flex; align-items: center; gap: .6rem; padding: .35rem 0; }
.checklist-item.done label { text-decoration: line-through; color: var(--text-faint); }
.progress { height: 6px; background: var(--panel-2); border-radius: 999px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--success); }

/* ------------------------------------------------------------------ Login */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.auth-card {
  width: 100%; max-width: 400px; background: var(--panel);
  border: 1px solid var(--border-soft); border-radius: var(--radius-lg);
  padding: 2rem; box-shadow: var(--shadow-lg);
}
.auth-card .brand { justify-content: center; padding-bottom: 1.4rem; }

/* ------------------------------------------------------------------ Utilities */
.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: .6rem; } .mt-2 { margin-top: 1.2rem; }
.mb-0 { margin-bottom: 0; }
.flex { display: flex; align-items: center; gap: .6rem; }
.gap-sm { gap: .4rem; }
.empty { text-align: center; color: var(--text-faint); padding: 2.5rem 1rem; }
.hidden { display: none !important; }
.switch-theme .ico-sun { display: none; }
[data-theme="light"] .switch-theme .ico-moon { display: none; }
[data-theme="light"] .switch-theme .ico-sun { display: block; }

/* ------------------------------------------------------------------ Responsive */
@media (max-width: 1024px) {
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .sidebar {
    position: fixed; left: 0; top: 0; z-index: 50;
    transform: translateX(-100%); transition: transform .2s ease; box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: translateX(0); }
  .grid.cols-4, .grid.cols-3, .grid.cols-2, .form-grid { grid-template-columns: 1fr; }
  .search { min-width: 0; }
  .content { padding: 1rem; }
  .menu-toggle { display: grid !important; }
}
.menu-toggle { display: none; }