/* ============================================================
   EPUYEN — Sistema de Gestión
   Design: Dark industrial, Syne + DM Sans
   ============================================================ */

:root {
    --bg:          #f0f2f7;
    --bg2:         #e8eaf0;
    --card:        #ffffff;
    --card2:       #f5f6fa;
    --border:      #e2e5ee;
    --border2:     #d0d4e0;

    --accent:      #5457e5;
    --accent-h:    #4345c0;
    --accent2:     #0ea572;
    --accent3:     #f59e0b;
    --danger:      #ef4444;

    --text:        #1a1d2e;
    --text2:       #4a5068;
    --text3:       #9299b0;

    --sidebar-w:   260px;
    --sidebar-w-c: 70px;
    --topbar-h:    62px;

    --radius:      10px;
    --radius-sm:   6px;
    --transition:  .2s cubic-bezier(.4,0,.2,1);

    --shadow:      0 4px 24px rgba(0,0,0,.08);
    --shadow-sm:   0 2px 8px rgba(0,0,0,.06);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ══════════════════════════════════════ SIDEBAR ══ */
.sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--sidebar-w);
    background: #fff;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: width var(--transition);
    z-index: 200;
    overflow: hidden;
    box-shadow: 2px 0 12px rgba(0,0,0,.06);
}

/* Brand */
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 16px;
    border-bottom: 1px solid var(--border);
    min-height: var(--topbar-h);
    flex-shrink: 0;
}
.brand-logo {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--accent), #818cf8);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Syne', sans-serif;
    font-weight: 800; font-size: 14px;
    flex-shrink: 0;
    color: #fff;
    letter-spacing: .5px;
}
.brand-text { flex: 1; overflow: hidden; }
.brand-name {
    font-family: 'Syne', sans-serif;
    font-weight: 700; font-size: 16px;
    display: block; white-space: nowrap;
}
.brand-sub { font-size: 11px; color: var(--text3); display: block; }

.sidebar-toggle {
    background: none; border: 1px solid var(--border);
    color: var(--text2); width: 28px; height: 28px;
    border-radius: var(--radius-sm); font-size: 16px;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition); flex-shrink: 0;
}
.sidebar-toggle:hover { background: var(--border); color: var(--text); }

/* Nav */
.sidebar-nav {
    flex: 1; overflow-y: auto; padding: 12px 10px;
    display: flex; flex-direction: column; gap: 2px;
}
.nav-label {
    font-size: 10px; letter-spacing: 1.5px; color: var(--text3);
    padding: 10px 8px 4px; font-weight: 600;
    white-space: nowrap; overflow: hidden;
    transition: opacity var(--transition);
}
.nav-divider { height: 1px; background: var(--border); margin: 8px 0; }

.nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 10px;
    border-radius: var(--radius-sm);
    color: var(--text2);
    transition: all var(--transition);
    white-space: nowrap; overflow: hidden;
    position: relative;
}
.nav-item:hover { background: var(--bg2); color: var(--text); }
.nav-item.active {
    background: rgba(84,87,229,.1);
    color: var(--accent);
    font-weight: 500;
}
.nav-item.active::before {
    content: '';
    position: absolute; left: 0; top: 20%; bottom: 20%;
    width: 3px; border-radius: 2px;
    background: var(--accent);
}
.nav-icon { font-size: 18px; flex-shrink: 0; width: 22px; text-align: center; }
.nav-text { font-size: 14px; overflow: hidden; }

/* Footer */
.sidebar-footer {
    padding: 12px 10px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}
.user-card {
    display: flex; align-items: center; gap: 10px;
    padding: 8px; border-radius: var(--radius-sm);
    background: var(--bg2);
    overflow: hidden;
}
.user-avatar { font-size: 22px; flex-shrink: 0; }
.user-info { flex: 1; overflow: hidden; }
.user-name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--accent2); }
.logout-btn {
    background: none; border: none; color: var(--text3); font-size: 18px;
    padding: 4px; border-radius: 4px; flex-shrink: 0;
    transition: all var(--transition);
}
.logout-btn:hover { color: var(--danger); background: rgba(239,68,68,.1); }

/* ── Collapsible nav sections ── */
.nav-section { margin-bottom: 2px; }

.nav-section-btn {
    width: 100%; display: flex; align-items: center; gap: 8px;
    padding: 7px 10px; border: none; background: none;
    color: var(--text3); cursor: pointer; border-radius: var(--radius-sm);
    font-size: 10px; font-weight: 700; letter-spacing: 1.2px;
    text-transform: uppercase; font-family: inherit;
    transition: all var(--transition);
    white-space: nowrap; overflow: hidden;
}
.nav-section-btn:hover { background: var(--bg2); color: var(--text2); }
.nav-section-icon { font-size: 14px; flex-shrink: 0; width: 22px; text-align: center; }
.nav-section-label { flex: 1; text-align: left; overflow: hidden; }
.nav-section-arrow { font-size: 10px; transition: transform .25s; flex-shrink: 0; }

.nav-section.collapsed .nav-section-arrow { transform: rotate(-90deg); }
.nav-section.collapsed .nav-section-items { display: none; }

.nav-section-items {
    border-left: 2px solid var(--border);
    margin-left: 18px;
    padding-left: 4px;
    margin-bottom: 4px;
}

/* En sidebar colapsado: ocultar labels, mostrar solo iconos */
body.sidebar-collapsed .nav-section-btn { justify-content: center; padding: 8px; }
body.sidebar-collapsed .nav-section-label,
body.sidebar-collapsed .nav-section-arrow { display: none; }
body.sidebar-collapsed .nav-section-items {
    border-left: none; margin-left: 0; padding-left: 0;
}
body.sidebar-collapsed .nav-section.collapsed .nav-section-items { display: block; }

body.sidebar-collapsed .sidebar { width: var(--sidebar-w-c); }
body.sidebar-collapsed .brand-text,
body.sidebar-collapsed .nav-label,
body.sidebar-collapsed .nav-text,
body.sidebar-collapsed .user-info,
body.sidebar-collapsed .logout-btn,
body.sidebar-collapsed .brand-sub,
body.sidebar-collapsed .nav-divider { opacity: 0; pointer-events: none; height: 0; padding: 0; margin: 0; overflow: hidden; }
body.sidebar-collapsed .sidebar-toggle { transform: rotate(180deg); }
body.sidebar-collapsed .main-wrapper { margin-left: var(--sidebar-w-c); }
body.sidebar-collapsed .nav-item { justify-content: center; padding: 10px; }
body.sidebar-collapsed .nav-item.active::before { display: none; }

/* ══════════════════════════════════════ MAIN WRAPPER ══ */
.main-wrapper {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex; flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition);
}

/* Topbar */
.topbar {
    position: sticky; top: 0;
    height: var(--topbar-h);
    background: #fff;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center;
    padding: 0 24px;
    gap: 16px;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,.04);
}
.topbar-left { display: flex; align-items: center; gap: 14px; flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.mobile-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--text2); padding: 6px 10px; border-radius: var(--radius-sm); font-size: 16px; }

.page-title h1 { font-family: 'Syne', sans-serif; font-size: 18px; font-weight: 700; }
.page-subtitle { font-size: 12px; color: var(--text3); margin-left: 10px; }

.sync-status {
    display: flex; align-items: center; gap: 6px;
    font-size: 12px; color: var(--text2);
    background: var(--card2); border: 1px solid var(--border);
    padding: 5px 12px; border-radius: 20px;
    font-family: 'JetBrains Mono', monospace;
}
.sync-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--accent2);
    box-shadow: 0 0 6px var(--accent2);
    animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity:1 } 50% { opacity:.4 } }

.topbar-user {
    display: flex; align-items: center; gap: 6px;
    font-size: 13px; color: var(--text2);
}

/* Content */
.content { flex: 1; padding: 24px; overflow-y: auto; }

/* Overlay mobile */
.sidebar-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,.6); z-index: 150;
}

/* ══════════════════════════════════════ COMPONENTS ══ */

/* KPI Cards */
.kpi-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; margin-bottom: 24px; }
.kpi-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px; position: relative; overflow: hidden;
    transition: transform var(--transition), border-color var(--transition);
}
.kpi-card:hover { transform: translateY(-2px); border-color: var(--border2); }
.kpi-card::after {
    content: ''; position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: var(--kpi-color, var(--accent));
}
.kpi-icon { font-size: 28px; margin-bottom: 10px; display: block; }
.kpi-label { font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.kpi-value { font-family: 'JetBrains Mono', monospace; font-size: 24px; font-weight: 600; color: var(--kpi-color, var(--text)); }
.kpi-sub { font-size: 12px; color: var(--text3); margin-top: 4px; }

/* Cards */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}
.card-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 18px;
}
.card-title { font-family: 'Syne', sans-serif; font-size: 14px; font-weight: 700; letter-spacing: .3px; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.col-span-2 { grid-column: span 2; }

/* Tables */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-table th {
    text-align: left; padding: 10px 14px;
    font-size: 11px; font-weight: 600; text-transform: uppercase;
    letter-spacing: .8px; color: var(--text3);
    border-bottom: 1px solid var(--border);
}
.data-table td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text2);
    vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--card2); color: var(--text); }

/* Badges */
.badge {
    display: inline-flex; align-items: center;
    padding: 3px 10px; border-radius: 20px;
    font-size: 11px; font-weight: 600; white-space: nowrap;
}
.badge-green  { background: rgba(16,185,129,.15); color: #34d399; }
.badge-blue   { background: rgba(99,102,241,.15);  color: #818cf8; }
.badge-yellow { background: rgba(245,158,11,.15); color: #fbbf24; }
.badge-red    { background: rgba(239,68,68,.15);  color: #f87171; }
.badge-gray   { background: var(--card2);          color: var(--text3); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 18px; border-radius: var(--radius-sm);
    font-size: 13.5px; font-weight: 500;
    border: none; transition: all var(--transition); cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-h); }
.btn-success { background: var(--accent2); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-danger:hover  { background: #dc2626; }
.btn-ghost   { background: var(--card2); color: var(--text2); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--border2); color: var(--text); }
.btn-sm { padding: 5px 12px; font-size: 12px; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; font-weight: 600; color: var(--text2); margin-bottom: 6px; letter-spacing: .5px; }
.form-control {
    width: 100%; padding: 9px 12px;
    background: #fff; border: 1px solid var(--border2);
    border-radius: var(--radius-sm); color: var(--text); font-size: 14px;
    transition: border-color var(--transition);
    outline: none;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(84,87,229,.1); }
.form-control::placeholder { color: var(--text3); }
select.form-control { cursor: pointer; }

/* Toggle switch */
.toggle-wrap { display: flex; align-items: center; gap: 8px; }
.toggle {
    position: relative; width: 40px; height: 22px;
    display: inline-block;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute; inset: 0;
    background: var(--border2); border-radius: 22px;
    cursor: pointer; transition: .3s;
}
.toggle-slider::before {
    content: ''; position: absolute;
    width: 16px; height: 16px; left: 3px; top: 3px;
    background: #fff; border-radius: 50%;
    transition: .3s;
}
.toggle input:checked + .toggle-slider { background: var(--accent2); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); }

/* Alerts */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 13.5px; }
.alert-success { background: rgba(16,185,129,.1); border: 1px solid rgba(16,185,129,.3); color: #34d399; }
.alert-error   { background: rgba(239,68,68,.1);  border: 1px solid rgba(239,68,68,.3);  color: #f87171; }
.alert-info    { background: rgba(99,102,241,.1);  border: 1px solid rgba(99,102,241,.3);  color: #818cf8; }
.alert-warning { background: rgba(245,158,11,.1); border: 1px solid rgba(245,158,11,.3); color: #fbbf24; }

/* Bar charts (horizontal) */
.bar-item { margin-bottom: 12px; }
.bar-header { display: flex; justify-content: space-between; font-size: 12.5px; margin-bottom: 4px; }
.bar-header span:last-child { font-family: 'JetBrains Mono', monospace; color: var(--accent2); }
.bar-track { height: 6px; background: var(--card2); border-radius: 3px; overflow: hidden; }
.bar-fill  { height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--accent), var(--accent2)); }

/* Modal */
.modal-backdrop {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,.7); z-index: 400;
    align-items: center; justify-content: center;
}
.modal-backdrop.open { display: flex; }
.modal {
    background: var(--card); border: 1px solid var(--border);
    border-radius: 14px; padding: 28px;
    width: 100%; max-width: 480px;
    box-shadow: var(--shadow);
    animation: modalIn .2s ease;
}
@keyframes modalIn { from { transform: scale(.95); opacity:0 } to { transform: scale(1); opacity:1 } }
.modal-title { font-family: 'Syne', sans-serif; font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

/* Search input */
.search-wrap { position: relative; }
.search-wrap input { padding-left: 34px; }
.search-wrap::before { content: '🔍'; position: absolute; left: 10px; top: 50%; transform: translateY(-50%); font-size: 13px; }

/* Pagination */
.pagination { display: flex; gap: 4px; margin-top: 16px; }
.page-btn {
    padding: 6px 12px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: none;
    color: var(--text2); font-size: 13px; cursor: pointer;
    transition: all var(--transition);
}
.page-btn:hover { background: var(--card2); color: var(--text); }
.page-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Empty state */
.empty-state { text-align: center; padding: 48px 24px; color: var(--text3); }
.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* Mono */
.mono { font-family: 'JetBrains Mono', monospace; }

/* ══════════════════════════════════════ LOGIN PAGE ══ */
.login-page {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; width: 100%;
    background: var(--bg);
    position: relative; overflow: hidden;
}
.login-bg {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(84,87,229,.12) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(14,165,114,.08) 0%, transparent 50%);
}
.login-card {
    position: relative; z-index: 1;
    background: var(--card); border: 1px solid var(--border);
    border-radius: 16px; padding: 40px 36px;
    width: 100%; max-width: 400px;
    box-shadow: var(--shadow);
}
.login-logo {
    text-align: center; margin-bottom: 28px;
}
.login-logo .logo-box {
    width: 54px; height: 54px;
    background: linear-gradient(135deg, var(--accent), #818cf8);
    border-radius: 14px;
    display: inline-flex; align-items: center; justify-content: center;
    font-family: 'Syne', sans-serif; font-weight: 800; font-size: 20px;
    color: #fff; margin-bottom: 12px;
}
.login-logo h2 { font-family: 'Syne', sans-serif; font-size: 22px; font-weight: 800; }
.login-logo p  { font-size: 13px; color: var(--text3); margin-top: 4px; }
.login-footer  { text-align: center; margin-top: 20px; font-size: 12px; color: var(--text3); }

/* ══════════════════════════════════════ RESPONSIVE ══ */
@media (max-width: 1024px) {
    .kpi-grid { grid-template-columns: repeat(2,1fr); }
    .grid-3   { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); width: var(--sidebar-w) !important; }
    body.sidebar-open .sidebar { transform: translateX(0); }
    body.sidebar-open .sidebar-overlay { display: block; }
    .main-wrapper { margin-left: 0 !important; }
    .mobile-toggle { display: flex; }
    .sidebar-toggle { display: none; }
    .kpi-grid { grid-template-columns: 1fr 1fr; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .content { padding: 16px; }
    .sync-status { display: none; }
}

@media (max-width: 480px) {
    .kpi-grid { grid-template-columns: 1fr; }
}