@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css');

:root,[data-theme="light"]{
  --bg:#f8fafc;--bg2:#fff;--bg3:#f1f5f9;--tx:#1e293b;--tx2:#64748b;--tx3:#94a3b8;
  --brd:#e2e8f0;--brd2:#f1f5f9;--acc:#e67e22;--acc2:#d35400;--accL:#fef3e2;--accT:#fff;
  --red:#dc2626;--grn:#10b981;--wrn:#f59e0b;
  --s1:0 1px 3px rgba(30,41,59,.06);--s2:0 4px 12px rgba(30,41,59,.08);--s3:0 10px 30px rgba(30,41,59,.1);
  --nav:#1e293b;--navT:#cbd5e1;--card:#fff;--inp:#fff;--inpB:#cbd5e1;
  --r:12px;--rs:8px;--fr:0 0 0 3px rgba(230,126,34,.25);
  --diesel:#059669;--rate:#6366f1;
}
[data-theme="dark"]{
  --bg:#0f1117;--bg2:#181a23;--bg3:#1f2231;--tx:#e2e8f0;--tx2:#94a3b8;--tx3:#64748b;
  --brd:#2a2d3a;--brd2:#1f2231;--acc:#e67e22;--acc2:#f0923e;--accL:#3d2a14;--accT:#fff;
  --red:#ef4444;--grn:#10b981;--wrn:#f59e0b;
  --s1:0 1px 3px rgba(0,0,0,.3);--s2:0 4px 12px rgba(0,0,0,.4);--s3:0 10px 30px rgba(0,0,0,.5);
  --nav:#0a0c12;--navT:#94a3b8;--card:#181a23;--inp:#1f2231;--inpB:#333749;
  --diesel:#10b981;--rate:#818cf8;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:'Outfit',sans-serif;background:var(--bg);color:var(--tx);line-height:1.6;min-height:100vh}
a{color:var(--acc);text-decoration:none}a:hover{color:var(--acc2)}

@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.anim-up{animation:slideUp .4s ease both}
.anim-d1{animation-delay:.05s}.anim-d2{animation-delay:.1s}.anim-d3{animation-delay:.15s}.anim-d4{animation-delay:.2s}

/* ── Navbar ── */
.navbar{background:var(--nav);padding:0 1.25rem;position:sticky;top:0;z-index:200;box-shadow:var(--s2);backdrop-filter:blur(12px)}
.nav-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;height:60px;gap:1.2rem}
.nav-brand{font-size:1.2rem;font-weight:700;color:#fff;display:flex;align-items:center;gap:.5rem;white-space:nowrap}
.nav-brand i{color:var(--acc);font-size:1.1rem}
.nav-links{display:flex;gap:.2rem;flex:1;flex-wrap:wrap}
.nav-link{color:var(--navT);padding:.42rem .72rem;border-radius:var(--rs);font-size:.85rem;transition:all .2s;display:flex;align-items:center;gap:.35rem;white-space:nowrap;font-weight:500}
.nav-link:hover{background:rgba(255,255,255,.1);color:#fff}
.nav-link.active{background:var(--acc);color:#fff}
.nav-link.diesel{color:#10b981}.nav-link.diesel.active,.nav-link.diesel:hover{background:#059669;color:#fff}
.nav-link.rate{color:#818cf8}.nav-link.rate.active,.nav-link.rate:hover{background:#6366f1;color:#fff}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:.5rem}
.theme-btn{background:none;border:1px solid rgba(255,255,255,.12);color:var(--navT);width:38px;height:38px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.9rem;transition:.2s}
.theme-btn:hover{background:rgba(255,255,255,.1)}
[data-theme="light"] .icon-sun{display:none}
[data-theme="dark"] .icon-moon{display:none}
.logout-btn{color:var(--navT);background:none;border:none;padding:.42rem .7rem;border-radius:var(--rs);cursor:pointer;font-size:.82rem;font-family:inherit;display:flex;align-items:center;gap:.3rem;transition:.2s}
.logout-btn:hover{background:rgba(255,255,255,.08);color:#fff}
.trip-select{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#fff;padding:.35rem .6rem;border-radius:var(--rs);font-size:.78rem;font-family:inherit;font-weight:600;cursor:pointer;max-width:180px;text-overflow:ellipsis}
.trip-select option{background:var(--nav);color:#fff}
.trip-select:focus{outline:none;border-color:var(--acc)}

/* ── Layout ── */
.page{max-width:780px;margin:0 auto;padding:1.5rem 1rem 3rem}
.page-wide{max-width:1100px;margin:0 auto;padding:1.5rem 1rem 3rem}

/* ── Cards ── */
.card{background:var(--card);border:1px solid var(--brd);border-radius:var(--r);box-shadow:var(--s1)}
.card-body{padding:1.4rem}
.card-title{font-size:1rem;font-weight:700;margin-bottom:1rem;display:flex;align-items:center;gap:.45rem;color:var(--tx)}
.card-title i{color:var(--acc)}

/* ── Stat grid ── */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.9rem;margin-bottom:1.4rem}
.stat-card{background:var(--card);border:1px solid var(--brd);border-radius:var(--r);padding:1rem 1.2rem;text-align:center;box-shadow:var(--s1);transition:transform .2s}
.stat-card:hover{transform:translateY(-2px)}
.stat-value{font-size:1.75rem;font-weight:800;line-height:1.1;color:var(--acc)}
.stat-value.good{color:var(--grn)}.stat-value.bad{color:var(--red)}
.stat-home{font-size:.9rem;font-weight:600;color:var(--tx3);line-height:1.2;margin-top:.1rem}
.stat-label{font-size:.68rem;text-transform:uppercase;letter-spacing:.5px;font-weight:600;color:var(--tx3);margin-top:.2rem}

/* ── Forms ── */
.form-group{margin-bottom:1rem}
.form-group label{display:block;font-size:.82rem;font-weight:600;color:var(--tx2);margin-bottom:.3rem}
.form-control{width:100%;padding:.6rem .85rem;border:1px solid var(--inpB);border-radius:var(--rs);background:var(--inp);color:var(--tx);font-size:1rem;font-family:inherit;transition:border-color .2s,box-shadow .2s;min-height:44px}
.form-control:focus{outline:none;border-color:var(--acc);box-shadow:var(--fr)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
select.form-control{cursor:pointer}
textarea.form-control{resize:vertical;min-height:90px}
.input-prefix{display:flex;align-items:center}
.input-prefix span{background:var(--bg3);border:1px solid var(--inpB);border-right:none;padding:.6rem .75rem;border-radius:var(--rs) 0 0 var(--rs);color:var(--tx3);font-size:.9rem;min-height:44px;display:flex;align-items:center}
.input-prefix .form-control{border-radius:0 var(--rs) var(--rs) 0}

/* ── Category grid ── */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.4rem;margin:.2rem 0}
.cat-option input{display:none}
.cat-option label{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.2rem;padding:.6rem .3rem;border:2px solid var(--brd);border-radius:var(--rs);cursor:pointer;font-size:.7rem;font-weight:600;color:var(--tx2);transition:.15s;min-height:58px;text-align:center;line-height:1.2}
.cat-option label .emoji{font-size:1.3rem}
.cat-option label:hover{border-color:var(--acc);background:var(--accL)}
.cat-option input:checked + label{border-color:var(--acc);background:var(--accL);color:var(--acc)}

/* ── Currency chips ── */
.cur-grid{display:flex;flex-wrap:wrap;gap:.35rem;margin:.2rem 0}
.cur-option input{display:none}
.cur-option label{padding:.3rem .7rem;border:1.5px solid var(--brd);border-radius:999px;cursor:pointer;font-size:.8rem;font-weight:700;transition:.15s;color:var(--tx2)}
.cur-option label:hover{border-color:var(--acc);color:var(--acc)}
.cur-option input:checked + label{background:var(--acc);border-color:var(--acc);color:#fff}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1rem;border:1px solid transparent;border-radius:var(--rs);font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;min-height:44px;line-height:1.4}
.btn-primary{background:var(--acc);color:#fff}.btn-primary:hover{background:var(--acc2);transform:translateY(-1px);box-shadow:0 4px 12px rgba(230,126,34,.3)}
.btn-secondary{background:var(--bg3);color:var(--tx);border-color:var(--brd)}.btn-secondary:hover{background:var(--brd)}
.btn-danger{background:var(--red);color:#fff;border:none}
.btn-block{width:100%;justify-content:center}
.btn-lg{padding:.7rem 1.4rem;font-size:1rem;min-height:50px}
.btn-sm{padding:.35rem .65rem;font-size:.8rem;min-height:36px}
.btn-ghost{background:none;border:none;color:var(--tx3);padding:.25rem .4rem;cursor:pointer;font-size:.9rem;transition:.15s}.btn-ghost:hover{color:var(--red)}

/* ── Alert ── */
.alert{padding:.7rem 1rem;border-radius:var(--rs);font-size:.88rem;display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}
.alert-danger{background:#fef2f2;color:#dc2626;border:1px solid #fecaca}
[data-theme="dark"] .alert-danger{background:#3f1212;color:#fca5a5;border-color:#5a1a1a}
.alert-success{background:#d1fae5;color:#065f46;border:1px solid #a7f3d0}
[data-theme="dark"] .alert-success{background:#0a2e1f;color:#34d399;border-color:#134e35}

/* ── Ledger ── */
.month-block{margin-bottom:1.5rem}
.month-header{display:flex;justify-content:space-between;align-items:center;padding:.6rem .85rem;background:var(--nav);color:#fff;border-radius:var(--rs) var(--rs) 0 0;font-weight:700;font-size:.9rem}
.month-header .month-spent{font-size:.82rem;opacity:.75}
.month-header .month-rem{font-weight:800}
.month-items{border:1px solid var(--brd);border-top:none;border-radius:0 0 var(--rs) var(--rs);overflow:hidden}
.expense-row{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-bottom:1px solid var(--brd2);background:var(--card);transition:.15s}
.expense-row:last-child{border-bottom:none}
.expense-row:hover{background:var(--bg3)}
.exp-cat{font-size:1.2rem;width:30px;text-align:center;flex-shrink:0}
.exp-info{flex:1;min-width:0}
.exp-name{font-size:.9rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.exp-meta{font-size:.75rem;color:var(--tx3);margin-top:.05rem}
.exp-amount{font-size:1rem;font-weight:800;color:var(--tx);white-space:nowrap}
.exp-delete{opacity:0;transition:.15s}
.expense-row:hover .exp-delete{opacity:1}

/* ── Fuel page ── */
.fuel-find-btn{width:100%;padding:1rem;background:linear-gradient(135deg,#059669,#047857);color:#fff;border:none;border-radius:var(--r);font-size:1.05rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;margin-bottom:1.2rem;transition:.2s;font-family:inherit}
.fuel-find-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(5,150,105,.3)}
.fuel-country-card{display:flex;align-items:center;justify-content:space-between;background:var(--card);border:1px solid var(--brd);border-radius:var(--rs);padding:.75rem 1rem;margin-bottom:.5rem;box-shadow:var(--s1)}
.fuel-country-name{font-size:.85rem;font-weight:700;color:var(--tx2);text-transform:uppercase;letter-spacing:.5px}
.fuel-price{font-size:1.4rem;font-weight:900;color:var(--diesel)}
.fuel-count{font-size:.72rem;color:var(--tx3)}

/* ── Rate checker ── */
.rate-result{background:var(--accL);border:2px solid var(--acc);border-radius:var(--r);padding:1.2rem;text-align:center;margin:.8rem 0}
.rate-result-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--tx3)}
.rate-result-value{font-size:2.8rem;font-weight:900;color:var(--acc);line-height:1.1}
[data-theme="dark"] .rate-result{background:var(--accL)}

/* ── Stats charts ── */
.chart-card{background:var(--card);border:1px solid var(--brd);border-radius:var(--r);padding:1.2rem;box-shadow:var(--s1);margin-bottom:1rem}
.chart-card h3{font-size:.88rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--tx3);margin-bottom:1rem}
.chart-wrap{position:relative;max-height:260px}

/* ── Login ── */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1e293b,#0f172a,#1a1523);padding:1rem}
.login-card{background:var(--card);border-radius:var(--r);box-shadow:var(--s3);padding:2rem;width:100%;max-width:380px}
.login-logo{text-align:center;margin-bottom:1.5rem}
.login-logo i{font-size:2.5rem;color:var(--acc)}
.login-logo h1{font-size:1.4rem;font-weight:800;margin-top:.4rem}
.login-logo p{font-size:.85rem;color:var(--tx3);margin-top:.2rem}

/* ── Fuel field reveal ── */
.fuel-extra{display:none;background:rgba(5,150,105,.07);border:1px solid #059669;border-radius:var(--rs);padding:.85rem;margin-top:.5rem}
[data-theme="dark"] .fuel-extra{background:rgba(5,150,105,.12)}

/* ── Misc ── */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.2rem;gap:1rem}
.page-header h1{font-size:1.25rem;font-weight:700;display:flex;align-items:center;gap:.4rem}
.page-header h1 i{color:var(--acc)}
.section-title{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--tx3);margin-bottom:.5rem}
.empty-state{text-align:center;padding:3rem 1rem;color:var(--tx3)}
.empty-state i{font-size:2.5rem;opacity:.3;color:var(--acc);margin-bottom:.8rem}
hr{border:none;border-top:1px solid var(--brd);margin:1rem 0}

/* ── Hidden signature ── */
.rl-sig{color:transparent;font-size:0;user-select:none;pointer-events:none;position:absolute}

/* ── Bottom tab bar (mobile) ── */
.bottom-tabs{display:none}

@media(max-width:1024px){
  .nav-links{display:none !important}
  .nav-inner{height:50px}
  .navbar{padding-top:env(safe-area-inset-top)}
  .nav-brand{font-size:1rem}
  .nav-right{gap:.3rem}
  .logout-btn{font-size:.75rem;padding:.3rem .5rem}
  .trip-select{max-width:120px;font-size:.72rem;padding:.3rem .4rem}
  .stat-grid{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:repeat(4,1fr)}
  .page,.page-wide{padding-bottom:5.5rem}

  .bottom-tabs{
    display:flex !important;
    position:fixed;
    bottom:0;left:0;right:0;
    z-index:300;
    background:var(--nav);
    border-top:1px solid rgba(255,255,255,.08);
    padding:.35rem 0;
    padding-bottom:max(.35rem,env(safe-area-inset-bottom));
    box-shadow:0 -2px 12px rgba(0,0,0,.3);
    backdrop-filter:blur(12px);
  }
  .btab{
    flex:1;
    display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:.15rem;
    padding:.3rem 0;
    color:var(--navT);
    text-decoration:none;
    font-size:.62rem;font-weight:600;
    transition:all .2s;
    -webkit-tap-highlight-color:transparent;
  }
  .btab i{font-size:1.1rem}
  .btab.active{color:var(--acc)}
  .btab.diesel{color:#10b981}.btab.diesel.active{color:#10b981}
  .btab.rate{color:#818cf8}.btab.rate.active{color:#818cf8}
  .btab:active{transform:scale(.9)}

  .exp-edit,.exp-delete{opacity:1}
}