/* ===== TEMA LIGHT ===== */
:root[data-theme="light"] {
    --bg: #f0f4f8;
    --bg-elevated: #ffffff;
    --sidebar-bg: rgba(15, 23, 42, 0.95);
    --sidebar-bg-solid: #0f172a;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-dark: #1d4ed8;
    --border: rgba(148,163,184,0.2);
    --border-solid: #e2e8f0;
    --card-bg: rgba(255,255,255,0.7);
    --glass: rgba(255,255,255,0.25);
    --glass-border: rgba(255,255,255,0.18);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --gold: #fbbf24;
    --radius: 16px;
}

/* ===== TEMA DARK ===== */
:root[data-theme="dark"] {
    --bg: #0f172a;
    --bg-elevated: #1e293b;
    --sidebar-bg: rgba(2,8,23,0.95);
    --sidebar-bg-solid: #020617;
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #60a5fa;
    --accent-light: #93c5fd;
    --accent-dark: #3b82f6;
    --border: rgba(148,163,184,0.15);
    --border-solid: #334155;
    --card-bg: rgba(30,41,59,0.6);
    --glass: rgba(30,41,59,0.4);
    --glass-border: rgba(148,163,184,0.1);
    --shadow: 0 4px 20px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.4);
    --success: #34d399;
    --warning: #fbbf24;
    --danger: #f87171;
    --gold: #fbbf24;
    --radius: 16px;
}

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

html { scroll-behavior:smooth; }

body {
    font-family:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
    background:var(--bg); color:var(--text);
    transition:background-color 0.4s,color 0.4s; overflow:hidden;
    -webkit-font-smoothing:antialiased;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn { from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeOut { from{opacity:1;transform:translateY(0)} to{opacity:0;transform:translateY(-12px)} }
@keyframes slideInRight { from{opacity:0;transform:translateX(30px)} to{opacity:1;transform:translateX(0)} }
@keyframes slideInLeft { from{opacity:0;transform:translateX(-30px)} to{opacity:1;transform:translateX(0)} }
@keyframes slideOutLeft { from{opacity:1;transform:translateX(0)} to{opacity:0;transform:translateX(-30px)} }
@keyframes slideOutRight { from{opacity:1;transform:translateX(0)} to{opacity:0;transform:translateX(30px)} }
@keyframes slideIn { from{opacity:0;transform:translateX(-20px)} to{opacity:1;transform:translateX(0)} }
@keyframes fadeOutUp { from{opacity:1;transform:translateY(0)} to{opacity:0;transform:translateY(-20px)} }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.5} }
@keyframes shimmer { 0%{background-position:-200% 0} 100%{background-position:200% 0} }
@keyframes spin { to{transform:rotate(360deg)} }
@keyframes toastIn { from{opacity:0;transform:translateY(20px) scale(0.95)} to{opacity:1;transform:translateY(0) scale(1)} }
@keyframes scaleIn { from{opacity:0;transform:scale(0.9)} to{opacity:1;transform:scale(1)} }

.app { display:flex; height:100vh; animation:fadeIn 0.5s ease-out; }

/* ===== OVERLAY ===== */
.overlay {
    position:fixed; inset:0; background:rgba(0,0,0,0.5); backdrop-filter:blur(4px);
    z-index:90; opacity:0; visibility:hidden; transition:all 0.3s;
}
.overlay.open { opacity:1; visibility:visible; }

/* ===== SIDEBAR ===== */
.sidebar {
    width:250px; background:var(--sidebar-bg); backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px); display:flex; flex-direction:column;
    padding:24px 0; transition:transform 0.3s ease;
    border-right:1px solid var(--border); overflow-y:auto; z-index:100;
    position:fixed; left:0; top:0; bottom:0;
}
.brand {
    display:flex; align-items:center; gap:12px; padding:0 20px; margin-bottom:24px;
    animation:slideIn 0.4s ease-out; position:relative;
}
.brand-icon { font-size:32px; animation:pulse 3s ease-in-out infinite; }
.brand-text h1 { color:#f8fafc; font-size:20px; font-weight:700; letter-spacing:-0.5px; }
.sidebar-close { display:none; }
.nav-links { display:flex; flex-direction:column; gap:4px; padding:0 12px; flex:1; }
.nav-link {
    display:flex; align-items:center; gap:12px; padding:12px 16px;
    border-radius:10px; color:#94a3b8; text-decoration:none; font-size:14px;
    font-weight:500; transition:all 0.25s cubic-bezier(0.4,0,0.2,1); cursor:pointer;
    position:relative; overflow:hidden; border:none; background:transparent; width:100%; text-align:left;
}
.nav-link::before {
    content:''; position:absolute; left:0; top:0; bottom:0; width:3px;
    background:var(--accent); border-radius:0 4px 4px 0; transform:scaleY(0); transition:transform 0.3s;
}
.nav-link:hover { color:#cbd5e1; background:rgba(255,255,255,0.05); transform:translateX(4px); }
.nav-link:hover::before { transform:scaleY(1); }
.nav-link.active { color:#f8fafc; background:rgba(59,130,246,0.15); font-weight:600; box-shadow:0 2px 12px rgba(59,130,246,0.2); }
.nav-link.active::before { transform:scaleY(1); }
.nav-link:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }
.sidebar-footer {
    margin-top:auto; padding:16px; display:flex; gap:8px; align-items:center;
    border-top:1px solid var(--border);
}
.connection-status { margin-left:auto; font-size:10px; color:var(--success); animation:pulse 2s infinite; }
.connection-status.offline { color:var(--danger); }
.btn-icon {
    width:36px; height:36px; border-radius:10px; border:1px solid var(--border);
    background:transparent; color:#94a3b8; font-size:16px; cursor:pointer;
    transition:all 0.2s; display:flex; align-items:center; justify-content:center;
}
.btn-icon:hover { background:rgba(255,255,255,0.1); color:#f8fafc; transform:scale(1.1); }
.btn-icon:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }

/* ===== MOBILE HEADER ===== */
.mobile-header {
    display:none; align-items:center; gap:12px; padding:12px 16px;
    background:var(--bg-elevated); border-bottom:1px solid var(--border-solid);
    position:sticky; top:0; z-index:80;
}
.mobile-header .hamburger { color:var(--text); border-color:var(--border-solid); }
.mobile-title { font-size:18px; font-weight:700; color:var(--text); flex:1; }
.mobile-badge { font-size:9px; padding:2px 6px; }

/* ===== CONTENT ===== */
.content {
    flex:1; overflow-y:auto; padding:32px; margin-left:250px;
    animation:fadeIn 0.5s ease-out;
}
.content::-webkit-scrollbar { width:6px; }
.content::-webkit-scrollbar-track { background:transparent; }
.content::-webkit-scrollbar-thumb { background:var(--border-solid); border-radius:3px; }

/* ===== LOADING ===== */
.loading-overlay {
    position:fixed; inset:0; background:var(--bg); z-index:200;
    display:flex; flex-direction:column; align-items:center; justify-content:center;
    gap:16px; transition:opacity 0.3s; opacity:0; visibility:hidden; pointer-events:none;
}
.loading-overlay.active { opacity:1; visibility:visible; pointer-events:all; }
.spinner { width:40px; height:40px; border:3px solid var(--border-solid); border-top-color:var(--accent); border-radius:50%; animation:spin 1s linear infinite; }

/* ===== TOASTS ===== */
.toast-container { position:fixed; top:20px; right:20px; z-index:300; display:flex; flex-direction:column; gap:10px; pointer-events:none; }
.toast {
    padding:14px 20px; border-radius:12px; font-size:14px; font-weight:500;
    background:var(--bg-elevated); border:1px solid var(--border-solid);
    box-shadow:var(--shadow-lg); display:flex; align-items:center; gap:10px;
    max-width:360px; animation:toastIn 0.35s ease-out; pointer-events:all;
}
.toast.success { border-left:4px solid var(--success); }
.toast.error   { border-left:4px solid var(--danger); }
.toast.warn    { border-left:4px solid var(--warning); }
.toast.info    { border-left:4px solid var(--accent); }

/* ===== PAGE ===== */
.page { display:none; }
.page.active { display:block; }
.page-header { margin-bottom:28px; animation:slideInRight 0.35s ease-out; }
.page-header h2 { font-size:32px; font-weight:700; letter-spacing:-1px; }
.page-header .subtitle { color:var(--text-muted); font-size:15px; margin-top:6px; }

/* ===== CARDS ===== */
.cards { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:18px; margin-bottom:28px; }
.card {
    background:var(--card-bg); border-radius:var(--radius); padding:24px;
    border:1px solid var(--border-solid);
    transition:all 0.3s cubic-bezier(0.4,0,0.2,1); position:relative; overflow:hidden;
    animation:scaleIn 0.4s ease-out;
}
.card:nth-child(1) { animation-delay:0s; }
.card:nth-child(2) { animation-delay:0.05s; }
.card:nth-child(3) { animation-delay:0.1s; }
.card:nth-child(4) { animation-delay:0.15s; }
.card::after {
    content:''; position:absolute; top:0; right:0; width:100px; height:100px;
    background:linear-gradient(135deg,var(--accent-light),transparent); opacity:0.1;
    border-radius:0 var(--radius) 0 100%; transition:opacity 0.3s;
}
.card:hover { transform:translateY(-4px); box-shadow:var(--shadow); border-color:var(--accent); }
.card:hover::after { opacity:0.2; }
.card.glass { background:var(--glass); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px); border:1px solid var(--glass-border); }
.card-icon { font-size:28px; margin-bottom:12px; }
.card-value { font-size:36px; font-weight:700; color:var(--accent); margin-bottom:4px; }
.card-label { font-size:13px; color:var(--text-muted); font-weight:500; }
.card-trend { font-size:12px; color:var(--success); margin-top:8px; font-weight:600; }
.card-trend.down { color:var(--danger); }

/* ===== GLASS PANEL ===== */
.glass-panel {
    background:var(--glass); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
    border:1px solid var(--glass-border); border-radius:var(--radius); padding:24px;
    margin-bottom:20px; transition:all 0.3s; animation:fadeIn 0.5s ease-out;
}
.glass-panel:hover { border-color:var(--accent); box-shadow:var(--shadow); }
.glass-panel h3 { font-size:16px; margin-bottom:14px; color:var(--text-secondary); }

/* ===== BADGE PREMIUM ===== */
.badge-premium {
    display:inline-block; padding:2px 8px;
    background:linear-gradient(135deg,var(--gold),#f59e0b); color:#1e293b;
    border-radius:12px; font-size:10px; font-weight:800; text-transform:uppercase;
    letter-spacing:0.5px; box-shadow:0 2px 8px rgba(251,191,36,0.3);
}

/* ===== TOOLBAR ===== */
.toolbar { display:flex; gap:12px; margin-bottom:18px; flex-wrap:wrap; align-items:center; }
.toolbar input,.toolbar select {
    padding:10px 16px; border:1px solid var(--border-solid); border-radius:12px;
    font-size:14px; font-family:inherit; background:var(--bg-elevated); color:var(--text);
    transition:all 0.2s; min-width:200px;
}
.toolbar input:focus,.toolbar select:focus { outline:none; border-color:var(--accent); box-shadow:0 0 0 3px rgba(59,130,246,0.15); }

/* ===== BUTTONS ===== */
.btn-primary {
    padding:10px 20px; background:linear-gradient(135deg,var(--accent),var(--accent-dark));
    color:white; border:none; border-radius:10px; font-weight:600; font-size:14px; cursor:pointer;
    transition:all 0.2s; display:inline-flex; align-items:center; gap:6px;
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 4px 12px rgba(59,130,246,0.3); }
.btn-primary:active { transform:translateY(0); }
.btn-primary:focus-visible { outline:2px solid var(--accent); outline-offset:3px; }
.btn-secondary {
    padding:10px 20px; background:transparent; color:var(--text-secondary);
    border:1px solid var(--border-solid); border-radius:10px; font-weight:600; font-size:14px;
    cursor:pointer; transition:all 0.2s;
}
.btn-secondary:hover { background:var(--bg-elevated); border-color:var(--accent); }
.btn-secondary:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }

/* ===== FORMS ===== */
.form { display:flex; flex-direction:column; gap:12px; max-width:600px; }
.form label { font-size:14px; font-weight:500; color:var(--text-secondary); }
.form input,.form select,.form textarea {
    padding:12px 16px; border:1px solid var(--border-solid); border-radius:10px;
    font-size:14px; font-family:inherit; background:var(--bg-elevated); color:var(--text); transition:all 0.2s;
}
.form input:focus,.form select:focus,.form textarea:focus { outline:none; border-color:var(--accent); box-shadow:0 0 0 3px rgba(59,130,246,0.1); }

/* ===== LIST ===== */
.list { display:flex; flex-direction:column; gap:10px; }
.list-item {
    background:var(--card-bg); border:1px solid var(--border-solid); border-radius:var(--radius);
    padding:18px 20px; display:flex; align-items:flex-start; gap:14px; justify-content:space-between;
    transition:all 0.25s; animation:fadeIn 0.3s ease-out;
}
.list-item:hover { border-color:var(--accent); box-shadow:var(--shadow); transform:translateX(4px); }
.list-item:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }
.list-item h4 { font-size:16px; font-weight:600; margin-bottom:4px; }
.list-item p { font-size:14px; color:var(--text-muted); }
.tag { display:inline-block; padding:3px 10px; border-radius:6px; font-size:12px; font-weight:500; background:var(--glass); border:1px solid var(--glass-border); }
.empty-msg { text-align:center; color:var(--text-muted); font-size:15px; padding:40px 0; }

/* ===== PAGINATION ===== */
.pagination { display:flex; gap:6px; margin-top:18px; justify-content:center; align-items:center; }
.pg-btn {
    padding:8px 14px; border-radius:8px; border:1px solid var(--border-solid);
    background:var(--card-bg); color:var(--text-secondary); font-size:13px; font-weight:600;
    cursor:pointer; transition:all 0.2s; min-width:36px; text-align:center;
}
.pg-btn:hover:not(:disabled) { border-color:var(--accent); background:var(--bg-elevated); color:var(--accent); }
.pg-btn.active { background:var(--accent); color:white; border-color:var(--accent); }
.pg-btn:disabled { opacity:0.4; cursor:not-allowed; }

/* ===== WEATHER ===== */
.weather-current { display:flex; align-items:center; gap:30px; }
.temp-big { font-size:72px; font-weight:800; letter-spacing:-3px; color:var(--accent); line-height:1; }
.weather-current .details h3 { font-size:22px; margin-bottom:6px; }
.weather-current .details p { font-size:14px; color:var(--text-muted); margin:3px 0; }
.weather-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(110px,1fr)); gap:10px; margin-top:14px; }
.weather-card {
    text-align:center; padding:14px 8px; border-radius:10px; background:var(--card-bg);
    border:1px solid var(--border-solid); transition:all 0.25s; animation:fadeIn 0.4s ease-out;
}
.weather-card:hover { border-color:var(--accent); transform:scale(1.05); }
.weather-card .day { font-size:12px; font-weight:600; color:var(--text-muted); }
.weather-card .icon { font-size:28px; margin:6px 0; }
.weather-card .temp { font-size:14px; font-weight:700; }
.weather-card .desc { font-size:11px; color:var(--text-muted); }

/* ===== ALERTS ===== */
.alert-warn { padding:12px 16px; border-radius:10px; background:rgba(245,158,11,0.1); border:1px solid rgba(245,158,11,0.2); color:var(--warning); font-size:14px; }
.alert-danger { padding:12px 16px; border-radius:10px; background:rgba(239,68,68,0.1); border:1px solid rgba(239,68,68,0.2); color:var(--danger); font-size:14px; }
.alert-success { padding:12px 16px; border-radius:10px; background:rgba(16,185,129,0.1); border:1px solid rgba(16,185,129,0.2); color:var(--success); font-size:14px; }

/* ===== CHECKBOX GRID ===== */
.checkbox-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:8px; margin:14px 0; }
.checkbox-grid label {
    display:flex; align-items:center; gap:8px; padding:10px 14px; border-radius:8px;
    background:var(--card-bg); border:1px solid var(--border-solid); cursor:pointer; transition:all 0.2s; font-size:14px;
}
.checkbox-grid label:hover { border-color:var(--accent); }
.checkbox-grid input[type="checkbox"] { width:18px; height:18px; accent-color:var(--accent); }
.checkbox-grid input[type="checkbox"]:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }

/* ===== RESULT BOX ===== */
.result-box { background:var(--card-bg); border:1px solid var(--border-solid); border-radius:var(--radius); padding:20px; margin-top:14px; }
.result-box h4 { font-size:18px; margin-bottom:12px; }
.result-box hr { border:none; border-top:1px solid var(--border-solid); margin:10px 0; }

/* ===== MODAL ===== */
.modal { position:fixed; inset:0; background:rgba(0,0,0,0.5); backdrop-filter:blur(4px); z-index:250; display:none; align-items:center; justify-content:center; padding:20px; }
.modal.open { display:flex; }
.modal-content {
    background:var(--bg-elevated); border:1px solid var(--border-solid); border-radius:var(--radius);
    padding:28px; max-width:500px; width:100%; max-height:90vh; overflow-y:auto;
    box-shadow:var(--shadow-lg); animation:scaleIn 0.3s ease-out;
}
.modal-content h3 { font-size:20px; margin-bottom:12px; }
.modal-content p { color:var(--text-muted); margin-bottom:18px; }
.modal-actions { display:flex; gap:12px; flex-wrap:wrap; }

/* ===== CANVAS ===== */
canvas { display:block; width:100%; height:auto; max-width:900px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar { transform:translateX(-100%); }
    .sidebar.open { transform:translateX(0); }
    .sidebar-close { display:flex; position:absolute; top:18px; right:18px; width:30px; height:30px; padding:0; align-items:center; justify-content:center; font-size:18px; background:rgba(255,255,255,0.1); color:#f8fafc; border:none; }
    .content { margin-left:0; padding:0; }
    .mobile-header { display:flex; }
    .page { padding:16px; }
    .page-header h2 { font-size:24px; }
    .temp-big { font-size:52px; }
    .weather-current { flex-direction:column; gap:16px; text-align:center; }
    .cards { grid-template-columns:1fr 1fr; gap:10px; }
    .card { padding:16px; }
    .toolbar { flex-direction:column; align-items:stretch; }
    .toolbar input,.toolbar select { min-width:unset; width:100%; }
    .pagination { flex-wrap:wrap; }
}

@media (max-width: 480px) {
    .cards { grid-template-columns:1fr; }
    .page-header h2 { font-size:20px; }
    .modal-content { padding:20px; max-width:95vw; }
}

@media (min-width: 769px) {
    .sidebar { position:sticky; }
    .content { margin-left:0; padding:32px; }
}