[data-theme="dark"]{--bg:#0F1117;--bg2:#161820;--surface:#1C1F2E;--surface2:#232638;--surface3:#2A2D42;--border:rgba(255,255,255,0.08);--border2:rgba(255,255,255,0.14);--text:#F0EEF8;--text2:#9B98B0;--text3:#5E5B72;--input-bg:#232638;--input-border:rgba(255,255,255,0.14);--shadow:0 4px 24px rgba(0,0,0,0.4);--shadow-lg:0 16px 64px rgba(0,0,0,0.6);--cal-cell-bg:#232638;--prog-track:#2A2D42;}
[data-theme="light"]{--bg:#F4F6FB;--bg2:#FFFFFF;--surface:#FFFFFF;--surface2:#F0F3FA;--surface3:#E4E9F5;--border:rgba(0,0,0,0.08);--border2:rgba(0,0,0,0.14);--text:#1A1D2E;--text2:#5A5D72;--text3:#9498B0;--input-bg:#F4F6FB;--input-border:rgba(0,0,0,0.15);--shadow:0 2px 12px rgba(0,0,0,0.08);--shadow-lg:0 12px 48px rgba(0,0,0,0.15);--cal-cell-bg:#F0F3FA;--prog-track:#E4E9F5;}
:root{--accent:#6C63FF;--accent2:#8B5CF6;--accent-glow:rgba(108,99,255,0.18);--green:#10B981;--green-bg:rgba(16,185,129,0.12);--amber:#F59E0B;--amber-bg:rgba(245,158,11,0.12);--red:#EF4444;--red-bg:rgba(239,68,68,0.12);--blue:#3B82F6;--blue-bg:rgba(59,130,246,0.12);--radius:14px;--radius-sm:9px;--radius-xs:5px;}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Outfit',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;transition:background 0.3s,color 0.3s;}
::-webkit-scrollbar{width:5px;}::-webkit-scrollbar-track{background:transparent;}::-webkit-scrollbar-thumb{background:var(--surface3);border-radius:99px;}
#auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem;background:var(--bg);background-image:radial-gradient(ellipse at 20% 50%,rgba(108,99,255,0.08) 0%,transparent 60%);}
.auth-card{background:var(--surface);border:1px solid var(--border2);border-radius:var(--radius);padding:2.5rem;width:100%;max-width:420px;box-shadow:var(--shadow-lg);}
.auth-logo{text-align:center;margin-bottom:2rem;}.auth-logo p{font-size:13px;color:var(--text3);margin-top:4px;}
.auth-tabs{display:flex;gap:3px;background:var(--surface2);border-radius:var(--radius-sm);padding:3px;margin-bottom:1.75rem;}
.auth-tab{flex:1;text-align:center;padding:8px;font-size:13px;font-weight:500;border-radius:7px;cursor:pointer;color:var(--text3);transition:all 0.2s;border:none;background:transparent;font-family:'Outfit',sans-serif;}
.auth-tab.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow);}
.auth-divider{text-align:center;font-size:12px;color:var(--text3);margin:1rem 0;position:relative;}
.auth-divider::before,.auth-divider::after{content:'';position:absolute;top:50%;width:42%;height:1px;background:var(--border2);}
.auth-divider::before{left:0;}.auth-divider::after{right:0;}
.sidebar{position:fixed;left:0;top:0;bottom:0;width:225px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:100;padding:1.5rem 0;transition:background 0.3s;}
.sidebar-logo{padding:0 1.5rem 1.25rem;border-bottom:1px solid var(--border);margin-bottom:1rem;}
.logo-text{font-family:'Playfair Display',serif;font-size:22px;color:var(--text);}.logo-text span{color:var(--accent);}
.logo-sub{font-size:10px;color:var(--text3);margin-top:2px;letter-spacing:1px;text-transform:uppercase;}
.nav-section-title{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:1.2px;padding:0.85rem 1.5rem 0.35rem;}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 1.5rem;font-size:13.5px;color:var(--text2);cursor:pointer;transition:all 0.15s;border-left:3px solid transparent;margin-bottom:1px;}
.nav-item:hover{color:var(--text);background:rgba(108,99,255,0.06);}
.nav-item.active{color:var(--accent);border-left-color:var(--accent);background:var(--accent-glow);font-weight:500;}
.nav-icon{font-size:15px;width:20px;text-align:center;}
.sidebar-bottom{margin-top:auto;padding:1rem 1.5rem;border-top:1px solid var(--border);}
.user-card{display:flex;align-items:center;gap:10px;}
.user-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:#fff;flex-shrink:0;}
.user-name{font-size:13px;font-weight:500;color:var(--text);}.user-email{font-size:11px;color:var(--text3);}
.main{margin-left:225px;min-height:100vh;}
.topbar{height:60px;background:var(--bg2);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 2rem;justify-content:space-between;position:sticky;top:0;z-index:50;transition:background 0.3s;}
.topbar-title{font-family:'Playfair Display',serif;font-size:20px;color:var(--text);}
.topbar-right{display:flex;align-items:center;gap:10px;}
.theme-toggle{width:52px;height:28px;border-radius:99px;border:none;cursor:pointer;background:var(--surface3);position:relative;transition:background 0.3s;flex-shrink:0;}
.theme-toggle-knob{width:22px;height:22px;border-radius:50%;position:absolute;top:3px;left:3px;transition:transform 0.3s;display:flex;align-items:center;justify-content:center;font-size:13px;background:var(--surface2);}
[data-theme="light"] .theme-toggle-knob{transform:translateX(24px);}
.content{padding:2rem;}
.page{display:none;animation:fadeUp 0.22s ease;}.page.active{display:block;}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1.25rem;box-shadow:var(--shadow);transition:background 0.3s;}
.card-title{font-family:'Playfair Display',serif;font-size:17px;color:var(--text);margin-bottom:1rem;}
.g2{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;}
.g3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem;}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;}
@media(max-width:1000px){.g3{grid-template-columns:1fr 1fr;}.g4{grid-template-columns:1fr 1fr;}}
@media(max-width:700px){.g2,.g3,.g4{grid-template-columns:1fr;}}
.form-group{margin-bottom:1rem;}
.form-group label{display:block;font-size:11px;font-weight:500;color:var(--text3);margin-bottom:6px;text-transform:uppercase;letter-spacing:0.8px;}
input,select,textarea{width:100%;padding:10px 13px;font-size:14px;font-family:'Outfit',sans-serif;background:var(--input-bg);color:var(--text);border:1px solid var(--input-border);border-radius:var(--radius-sm);transition:border 0.15s,box-shadow 0.15s,background 0.3s;outline:none;}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow);}
select option{background:var(--surface2);color:var(--text);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
@media(max-width:500px){.form-row{grid-template-columns:1fr;}}
.input-icon{position:relative;}.input-icon input{padding-left:38px;}
.input-icon .icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:16px;pointer-events:none;}
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;font-size:13px;font-weight:500;font-family:'Outfit',sans-serif;border-radius:var(--radius-sm);cursor:pointer;transition:all 0.15s;border:none;white-space:nowrap;}
.btn-primary{background:var(--accent);color:#fff;}.btn-primary:hover{background:var(--accent2);transform:translateY(-1px);box-shadow:0 4px 20px var(--accent-glow);}
.btn-outline{background:transparent;border:1px solid var(--border2);color:var(--text2);}.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-glow);}
.btn-ghost{background:transparent;border:none;color:var(--text3);padding:6px 10px;}.btn-ghost:hover{color:var(--text);background:var(--surface2);}
.btn-danger{background:transparent;border:1px solid rgba(239,68,68,0.3);color:var(--red);padding:5px 10px;font-size:12px;border-radius:var(--radius-xs);}.btn-danger:hover{background:var(--red-bg);}
.btn-sm{padding:5px 12px;font-size:12px;}.btn-block{width:100%;justify-content:center;padding:11px;}
.badge{display:inline-block;font-size:11px;font-weight:500;padding:3px 9px;border-radius:99px;}
.badge-purple{background:rgba(108,99,255,0.15);color:var(--accent);}.badge-green{background:var(--green-bg);color:var(--green);}
.badge-blue{background:var(--blue-bg);color:var(--blue);}.badge-gray{background:var(--surface2);color:var(--text2);}
.badge-amber{background:var(--amber-bg);color:var(--amber);}.badge-red{background:var(--red-bg);color:var(--red);}
.cat-stay{background:rgba(59,130,246,0.15);color:#3B82F6;}.cat-food{background:rgba(245,158,11,0.15);color:#F59E0B;}
.cat-transport{background:rgba(16,185,129,0.15);color:#10B981;}.cat-activity{background:rgba(249,115,22,0.15);color:#F97316;}
.cat-other{background:rgba(156,163,175,0.15);color:#9CA3AF;}
.metric-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;position:relative;overflow:hidden;box-shadow:var(--shadow);}
.metric-card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(108,99,255,0.04) 0%,transparent 70%);pointer-events:none;}
.metric-val{font-family:'Playfair Display',serif;font-size:28px;color:var(--text);}
.metric-lbl{font-size:11px;color:var(--text3);text-transform:uppercase;letter-spacing:0.8px;margin-top:4px;}
.metric-sub{font-size:12px;color:var(--text2);margin-top:5px;}.metric-icon{position:absolute;right:1rem;top:1rem;font-size:26px;opacity:0.12;}
.trip-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;cursor:pointer;transition:all 0.2s;box-shadow:var(--shadow);}
.trip-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 32px rgba(108,99,255,0.15);}
.trip-card-name{font-family:'Playfair Display',serif;font-size:18px;margin-bottom:3px;}.trip-card-dest{font-size:13px;color:var(--text2);margin-bottom:10px;}
.prog-track{background:var(--prog-track);border-radius:99px;height:10px;overflow:hidden;}
.prog-fill{height:10px;border-radius:99px;transition:width 0.6s cubic-bezier(.4,0,.2,1);}
.prog-safe{background:linear-gradient(90deg,var(--green),#34D399);}.prog-warn{background:linear-gradient(90deg,var(--amber),#FBB740);}.prog-over{background:linear-gradient(90deg,var(--red),#F87171);}
.cal-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);}
.cal-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem;}
.cal-nav-title{font-family:'Playfair Display',serif;font-size:20px;}
.cal-head{display:grid;grid-template-columns:repeat(7,1fr);gap:3px;margin-bottom:5px;}
.cal-head span{font-size:10px;color:var(--text3);text-align:center;padding:4px;text-transform:uppercase;letter-spacing:0.6px;}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:3px;}
.cal-cell{min-height:78px;border-radius:var(--radius-sm);padding:6px;background:var(--cal-cell-bg);cursor:pointer;transition:all 0.15s;border:1px solid transparent;}
.cal-cell:hover{border-color:var(--border2);}.cal-cell.in-trip{background:rgba(108,99,255,0.1);border-color:rgba(108,99,255,0.25);}
.cal-cell.in-trip:hover{border-color:var(--accent);}
.cal-cell.today .cal-dn{font-weight:600;color:#fff;background:var(--accent);border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:11px;}
.cal-cell.other-month{opacity:0.2;pointer-events:none;}.cal-cell.selected{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow);}
.cal-dn{font-size:11px;color:var(--text3);margin-bottom:3px;}
.cal-stay{font-size:9px;background:var(--accent);color:#fff;border-radius:3px;padding:1px 4px;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.cal-trip-strip{font-size:9px;border-radius:3px;padding:1px 4px;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.cal-amt{font-size:10px;color:var(--green);font-weight:600;}
.cal-layout{display:grid;grid-template-columns:1fr 290px;gap:1.25rem;}
@media(max-width:1100px){.cal-layout{grid-template-columns:1fr;}}
.day-detail-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;position:sticky;top:76px;max-height:calc(100vh - 100px);overflow-y:auto;box-shadow:var(--shadow);}
.expense-row{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--surface2);border-radius:var(--radius-sm);margin-bottom:6px;transition:background 0.15s;}
.expense-row:hover{background:var(--surface3);}.exp-name{flex:1;font-size:13px;}
.exp-date{font-size:11px;color:var(--text3);min-width:65px;}.exp-amt{font-size:14px;font-weight:600;min-width:90px;text-align:right;}
.day-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:10px;overflow:hidden;box-shadow:var(--shadow);}
.day-card-header{padding:1rem 1.25rem;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid transparent;cursor:pointer;transition:background 0.15s;flex-wrap:wrap;gap:8px;}
.day-card-header:hover{background:var(--surface2);}.day-card-header.open{border-bottom-color:var(--border);}
.day-badge{background:var(--accent);color:#fff;font-size:11px;font-weight:600;padding:3px 10px;border-radius:99px;}
.day-card-body{padding:1rem 1.25rem;}
.cat-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border);}
.cat-row:last-child{border-bottom:none;}.cat-bar{width:90px;}
.cat-bar-track{background:var(--prog-track);border-radius:99px;height:5px;}
.cat-bar-fill{height:5px;border-radius:99px;background:var(--accent);}
.cat-pct{font-size:12px;color:var(--text3);min-width:32px;text-align:right;}.cat-amt{font-size:13px;font-weight:600;min-width:90px;text-align:right;}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,0.55);z-index:300;display:none;align-items:center;justify-content:center;padding:1rem;backdrop-filter:blur(4px);}
.overlay.open{display:flex;}
.modal{background:var(--surface);border:1px solid var(--border2);border-radius:var(--radius);padding:1.75rem;width:100%;max-width:460px;box-shadow:var(--shadow-lg);animation:modalIn 0.2s ease;max-height:90vh;overflow-y:auto;}
@keyframes modalIn{from{opacity:0;transform:scale(0.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-title{font-family:'Playfair Display',serif;font-size:22px;margin-bottom:1.25rem;}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:1.25rem;}
.toast{position:fixed;bottom:24px;right:24px;padding:12px 20px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;z-index:999;opacity:0;transform:translateY(12px);transition:all 0.3s;box-shadow:var(--shadow-lg);}
.toast.show{opacity:1;transform:translateY(0);}.toast.success{background:var(--green);color:#fff;}.toast.error{background:var(--red);color:#fff;}.toast.info{background:var(--accent);color:#fff;}
.divider{border:none;border-top:1px solid var(--border);margin:1rem 0;}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem;flex-wrap:wrap;gap:10px;}
.section-title{font-family:'Playfair Display',serif;font-size:24px;}
.alert{padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:1rem;}
.alert-green{background:var(--green-bg);color:var(--green);border:1px solid rgba(16,185,129,0.25);}
.alert-amber{background:var(--amber-bg);color:var(--amber);border:1px solid rgba(245,158,11,0.25);}
.alert-red{background:var(--red-bg);color:var(--red);border:1px solid rgba(239,68,68,0.25);}
.tag{display:inline-flex;align-items:center;gap:4px;background:var(--surface2);border:1px solid var(--border);border-radius:99px;padding:3px 10px;font-size:12px;color:var(--text2);}
.empty{text-align:center;padding:3.5rem 1rem;color:var(--text3);}.empty-icon{font-size:48px;margin-bottom:1rem;opacity:0.5;}.empty p{font-size:14px;}
.admin-table{width:100%;border-collapse:collapse;font-size:13px;}
.admin-table th{text-align:left;padding:10px 12px;font-size:11px;font-weight:500;color:var(--text3);text-transform:uppercase;letter-spacing:0.6px;border-bottom:1px solid var(--border);}
.admin-table td{padding:10px 12px;border-bottom:1px solid var(--border);color:var(--text2);}
.admin-table tr:last-child td{border-bottom:none;}.admin-table tr:hover td{background:var(--surface2);}