:root {
  --bg: #FFFBF5; --surface: #FFFFFF; --surface2: #FAF6EF;
  --border: #F0E8D8; --border2: #E8DCC8;
  --text: #1A1208; --text2: #6B5B3E; --text3: #C4A882;
  --accent: #1A1208; --gold: #D4A038; --gold-light: #FEF3E2; --gold-dark: #A87C20;
  --danger: #C0392B; --danger-light: #FAEAE8;
  --success: #1B6B3A; --success-light: #E8F5EE;
  --radius: 14px; --radius-lg: 20px; --radius-xl: 26px;
  --nav-h: 72px; --font: 'Inter',sans-serif; --font-mono: 'DM Mono',monospace;
  --shadow-sm: 0 1px 3px rgba(26,18,8,0.06),0 2px 8px rgba(26,18,8,0.04);
  --shadow: 0 2px 8px rgba(26,18,8,0.08),0 8px 24px rgba(26,18,8,0.06);
  --shadow-lg: 0 8px 32px rgba(26,18,8,0.14);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
html,body{height:100%;overflow:hidden;}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;}

.view{position:fixed;inset:0;display:flex;flex-direction:column;background:var(--bg);transition:transform 0.32s cubic-bezier(0.4,0,0.2,1),opacity 0.32s;}
.view.hidden{transform:translateX(100%);pointer-events:none;}
.view.slide-left{transform:translateX(-28%);opacity:0.4;pointer-events:none;}
.view-body{flex:1;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;padding-bottom:calc(var(--nav-h) + 20px);}

.topbar{padding:env(safe-area-inset-top,12px) 20px 0;background:var(--bg);position:sticky;top:0;z-index:50;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;}
.topbar-title{font-size:24px;font-weight:900;letter-spacing:-0.8px;}
.topbar-sub{font-size:11px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:1px;margin-bottom:2px;}
.back-btn{width:38px;height:38px;border-radius:12px;background:var(--surface);border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;flex-shrink:0;}
.back-btn:active{background:var(--surface2);}

.hero-card{margin:12px 16px 0;background:var(--accent);border-radius:var(--radius-xl);padding:20px;color:white;position:relative;overflow:hidden;}
.hero-card::before{content:'';position:absolute;right:-40px;top:-40px;width:160px;height:160px;border-radius:50%;background:rgba(212,160,56,0.12);}
.hero-card::after{content:'';position:absolute;right:20px;bottom:-50px;width:100px;height:100px;border-radius:50%;background:rgba(212,160,56,0.07);}
.hero-label{font-size:11px;font-weight:600;opacity:0.5;text-transform:uppercase;letter-spacing:1.2px;}
.hero-amount{font-size:38px;font-weight:900;font-family:var(--font-mono);letter-spacing:-1px;margin:4px 0 2px;color:var(--gold);}
.hero-sub{font-size:13px;opacity:0.5;}
.hero-bar-track{height:4px;background:rgba(255,255,255,0.1);border-radius:2px;margin:14px 0 10px;}
.hero-bar-fill{height:4px;background:var(--gold);border-radius:2px;transition:width 0.5s cubic-bezier(0.4,0,0.2,1);}
.hero-pills{display:flex;gap:8px;}
.hero-pill{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.1);border-radius:20px;padding:4px 10px;font-size:11px;font-weight:600;color:rgba(255,255,255,0.6);}
.hero-pill.gold{background:rgba(212,160,56,0.2);border-color:rgba(212,160,56,0.3);color:var(--gold);}
.hero-stats-grid{display:flex;gap:0;margin-top:14px;padding-top:14px;border-top:1px solid rgba(255,255,255,0.1);}
.hero-stat-col{flex:1;padding:0 10px;}
.hero-stat-col:first-child{padding-left:0;}
.hero-stat-col:last-child{padding-right:0;text-align:right;}
.hero-stat-col+.hero-stat-col{border-left:1px solid rgba(255,255,255,0.1);}
.hero-stat-label{font-size:9px;font-weight:600;opacity:0.4;text-transform:uppercase;letter-spacing:0.8px;margin-bottom:3px;}
.hero-stat-val{font-size:17px;font-weight:800;font-family:var(--font-mono);color:white;line-height:1.1;}
.hero-stat-val.gold{color:var(--gold);}
.hero-stat-val.green{color:#4ADE80;}
.hero-stat-val.orange{color:#FB923C;}
.hero-stat-divider{margin-top:8px;padding-top:8px;border-top:1px solid rgba(255,255,255,0.08);}
.hero-actions{display:flex;gap:8px;margin-top:14px;}
.hero-action-btn{flex:1;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);border-radius:10px;padding:8px;cursor:pointer;font-family:var(--font);font-size:12px;font-weight:600;color:rgba(255,255,255,0.7);display:flex;align-items:center;justify-content:center;gap:4px;transition:background 0.15s;}
.hero-action-btn:active{background:rgba(255,255,255,0.18);}

.section-header{display:flex;align-items:center;justify-content:space-between;padding:20px 16px 10px;}
.section-title{font-size:12px;font-weight:800;color:var(--text3);text-transform:uppercase;letter-spacing:1px;}
.section-action{font-size:14px;font-weight:700;color:var(--gold);cursor:pointer;padding:4px 0;}

.project-card{margin:0 16px 10px;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-lg);padding:14px 16px;cursor:pointer;display:flex;align-items:center;gap:14px;box-shadow:var(--shadow-sm);transition:transform 0.12s;-webkit-user-select:none;}
.project-card:active{transform:scale(0.97);}
.project-card.completed{opacity:0.6;}
.project-emoji{width:44px;height:44px;border-radius:14px;background:var(--gold-light);display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0;}
.project-card.completed .project-emoji{background:var(--surface2);}
.project-info{flex:1;min-width:0;}
.project-card-name{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.project-card.completed .project-card-name{text-decoration:line-through;color:var(--text3);}
.project-card-meta{font-size:12px;color:var(--text3);margin-top:2px;}
.project-card-amount{font-size:17px;font-weight:800;font-family:var(--font-mono);flex-shrink:0;}
.project-budget-bar{height:3px;background:var(--border);border-radius:2px;margin-top:6px;}
.project-budget-fill{height:3px;border-radius:2px;transition:width 0.4s;}
.done-badge{display:inline-flex;align-items:center;background:var(--success-light);color:var(--success);border:1px solid #b8d4be;border-radius:20px;font-size:10px;font-weight:700;padding:1px 7px;margin-left:6px;vertical-align:middle;}

.project-hero{margin:12px 16px 0;background:var(--accent);border-radius:var(--radius-xl);padding:20px;color:white;position:relative;overflow:hidden;}
.project-hero::before{content:'';position:absolute;right:-30px;top:-30px;width:120px;height:120px;border-radius:50%;background:rgba(212,160,56,0.12);}
.project-hero-emoji{font-size:32px;margin-bottom:8px;position:relative;}
.project-hero-name{font-size:22px;font-weight:900;letter-spacing:-0.5px;position:relative;}
.project-hero-desc{font-size:13px;opacity:0.5;margin-top:2px;position:relative;}
.project-hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px;position:relative;}
.project-stat{background:rgba(255,255,255,0.07);border:1px solid rgba(255,255,255,0.1);border-radius:12px;padding:10px 12px;}
.project-stat-label{font-size:10px;font-weight:600;opacity:0.5;text-transform:uppercase;letter-spacing:0.8px;}
.project-stat-val{font-size:18px;font-weight:800;font-family:var(--font-mono);margin-top:2px;}
.project-stat-val.gold{color:var(--gold);}
.project-stat-val.green{color:#4ADE80;}
.project-stat-val.red{color:#F87171;}
.project-stat-val.orange{color:#FB923C;}

.budget-progress{margin:14px 16px 0;}
.budget-progress-label{display:flex;justify-content:space-between;font-size:12px;font-weight:600;color:var(--text3);margin-bottom:6px;}
.budget-progress-track{height:8px;background:var(--border);border-radius:4px;overflow:hidden;}
.budget-progress-fill{height:8px;border-radius:4px;transition:width 0.5s;}

.completed-banner{margin:12px 16px 0;background:var(--success-light);border:1.5px solid #b8d4be;border-radius:var(--radius);padding:12px 16px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--success);font-weight:600;}

.receipt-card{margin:0 16px 10px;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);}
.receipt-card.is-paid{border-left:4px solid var(--success);}
.receipt-card-main{padding:14px;display:flex;gap:12px;align-items:flex-start;}
.receipt-thumb{width:52px;height:52px;border-radius:12px;background:var(--surface2);border:1.5px solid var(--border);overflow:hidden;flex-shrink:0;display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;}
.receipt-thumb img{width:100%;height:100%;object-fit:cover;}
.receipt-thumb-icon{font-size:24px;}
.receipt-thumb-badge{position:absolute;bottom:2px;right:2px;width:18px;height:18px;background:var(--accent);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px;}
.receipt-body{flex:1;min-width:0;}
.receipt-store-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.receipt-store{font-size:15px;font-weight:700;}
.paid-badge{background:var(--success-light);color:var(--success);border:1px solid #a8d5b5;border-radius:20px;font-size:10px;font-weight:700;padding:1px 7px;}
.receipt-desc{font-size:12px;color:var(--text3);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.receipt-meta{font-size:11px;color:var(--text3);margin-top:4px;display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.cat-tag{background:var(--gold-light);color:var(--gold-dark);border-radius:20px;padding:2px 8px;font-size:11px;font-weight:600;}
.receipt-right{text-align:right;flex-shrink:0;}
.receipt-amount{font-size:18px;font-weight:800;font-family:var(--font-mono);}
.receipt-net-label{font-size:11px;color:var(--text3);margin-top:1px;}
.receipt-net-label.refunded{color:var(--success);font-weight:600;}
.receipt-action-row{display:flex;gap:6px;margin-top:10px;justify-content:flex-end;flex-wrap:wrap;}
.refund-strip{background:var(--success-light);border-top:1.5px solid #c0e0cb;padding:10px 14px;}
.refund-strip-title{font-size:11px;font-weight:700;color:var(--success);margin-bottom:6px;}
.refund-chips{display:flex;gap:6px;flex-wrap:wrap;}
.refund-chip{background:white;border:1px solid #a8d5b5;border-radius:20px;padding:3px 10px;font-size:11px;font-family:var(--font-mono);color:var(--success);display:flex;align-items:center;gap:6px;}
.refund-chip button{background:none;border:none;cursor:pointer;color:var(--danger);font-size:13px;padding:0;line-height:1;}
.paid-strip{background:var(--success-light);border-top:1.5px solid #a8d5b5;padding:8px 14px;display:flex;justify-content:space-between;align-items:center;}
.paid-strip-label{font-size:12px;font-weight:700;color:var(--success);}
.paid-strip-date{font-size:11px;color:#5dae7e;font-family:var(--font-mono);}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;border-radius:10px;cursor:pointer;font-family:var(--font);font-weight:600;border:1.5px solid transparent;transition:all 0.12s;white-space:nowrap;-webkit-user-select:none;}
.btn:active{transform:scale(0.95);}
.btn-primary{background:var(--accent);color:white;padding:13px 20px;font-size:15px;border-radius:var(--radius);}
.btn-gold{background:var(--gold);color:var(--accent);padding:13px 20px;font-size:15px;border-radius:var(--radius);}
.btn-gold:active{background:var(--gold-dark);}
.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--text2);padding:8px 12px;font-size:13px;}
.btn-secondary:active{background:var(--surface2);}
.btn-danger{background:var(--danger-light);color:var(--danger);border-color:#f0c0bb;padding:8px 12px;font-size:13px;}
.btn-success{background:var(--success-light);color:var(--success);border-color:#a8d5b5;padding:8px 12px;font-size:13px;}
.btn-sm{padding:6px 10px;font-size:12px;border-radius:8px;}
.btn-icon{width:34px;height:34px;padding:0;border-radius:10px;}
.btn-block{width:100%;padding:15px;font-size:16px;border-radius:var(--radius);}

.fab{position:fixed;bottom:calc(var(--nav-h) + 16px);right:20px;width:56px;height:56px;border-radius:18px;background:var(--gold);color:var(--accent);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:300;box-shadow:0 4px 20px rgba(212,160,56,0.45);z-index:100;transition:transform 0.15s;}
.fab:active{transform:scale(0.91);}

.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:var(--nav-h);background:var(--surface);border-top:1.5px solid var(--border);display:flex;padding-bottom:env(safe-area-inset-bottom,0px);z-index:200;}
.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;cursor:pointer;font-size:10px;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:0.5px;padding-bottom:4px;transition:color 0.15s;-webkit-user-select:none;}
.nav-item:active{opacity:0.7;}
.nav-item.active{color:var(--accent);}
.nav-icon{font-size:22px;line-height:1;}

.empty-state{text-align:center;padding:60px 32px;}
.empty-icon{font-size:56px;margin-bottom:14px;opacity:0.35;}
.empty-title{font-size:18px;font-weight:800;color:var(--text2);margin-bottom:6px;}
.empty-desc{font-size:14px;color:var(--text3);line-height:1.5;margin-bottom:24px;}

.sheet-backdrop{position:fixed;inset:0;background:rgba(26,18,8,0.5);z-index:500;display:none;align-items:flex-end;}
.sheet-backdrop.open{display:flex;animation:fade-in 0.2s;}
@keyframes fade-in{from{opacity:0;}to{opacity:1;}}
.sheet{background:var(--surface);width:100%;border-radius:24px 24px 0 0;max-height:92vh;overflow-y:auto;animation:sheet-up 0.3s cubic-bezier(0.4,0,0.2,1);padding-bottom:env(safe-area-inset-bottom,16px);}
@keyframes sheet-up{from{transform:translateY(100%);}to{transform:translateY(0);}}
.sheet-handle{width:40px;height:4px;background:var(--border2);border-radius:2px;margin:12px auto 4px;}
.sheet-header{padding:8px 20px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1.5px solid var(--border);}
.sheet-title{font-size:18px;font-weight:800;letter-spacing:-0.3px;}
.sheet-close{width:32px;height:32px;border-radius:50%;background:var(--surface2);border:none;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;color:var(--text3);}
.sheet-body{padding:20px;}
.sheet-footer{padding:12px 20px 8px;display:flex;gap:10px;border-top:1.5px solid var(--border);}

.form-group{margin-bottom:16px;}
.form-label{display:block;font-size:12px;font-weight:700;color:var(--text2);margin-bottom:6px;text-transform:uppercase;letter-spacing:0.5px;}
.form-input,.form-select,.form-textarea{width:100%;padding:13px 14px;border:1.5px solid var(--border);border-radius:var(--radius);background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;outline:none;transition:border-color 0.15s;-webkit-appearance:none;}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(212,160,56,0.12);}
.form-select option{background:var(--surface);color:var(--text);}
.form-textarea{resize:vertical;min-height:80px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.form-hint{font-size:11px;color:var(--text3);margin-top:5px;}

.upload-zone{border:2px dashed var(--border2);border-radius:var(--radius);padding:22px;text-align:center;cursor:pointer;background:var(--bg);position:relative;transition:all 0.15s;}
.upload-zone:active{background:var(--gold-light);border-color:var(--gold);}
.upload-zone input{position:absolute;inset:0;opacity:0;cursor:pointer;}
.upload-zone-icon{font-size:32px;margin-bottom:6px;}
.upload-zone-text{font-size:13px;color:var(--text3);font-weight:500;}
.upload-preview{margin-top:12px;display:none;}
.upload-preview img{max-width:100%;max-height:180px;border-radius:var(--radius);border:1.5px solid var(--border);}

.img-viewer{position:fixed;inset:0;background:rgba(0,0,0,0.93);z-index:2000;display:none;align-items:center;justify-content:center;}
.img-viewer.open{display:flex;}
.img-viewer img{max-width:95vw;max-height:90vh;border-radius:12px;}

.toast-container{position:fixed;top:env(safe-area-inset-top,16px);left:16px;right:16px;z-index:3000;display:flex;flex-direction:column;gap:8px;pointer-events:none;}
.toast{background:var(--accent);color:white;padding:12px 16px;border-radius:14px;font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px;animation:toast-drop 0.25s;box-shadow:var(--shadow-lg);}
@keyframes toast-drop{from{transform:translateY(-20px);opacity:0;}to{transform:translateY(0);opacity:1;}}
.toast.error{background:var(--danger);}
.toast.success{background:var(--success);}

#loading-bar{position:fixed;top:0;left:0;right:0;height:3px;background:var(--gold);z-index:9999;transition:opacity 0.4s;opacity:0;}

.confirm-content{padding:20px;text-align:center;}
.confirm-icon{font-size:40px;margin-bottom:10px;}
.confirm-title{font-size:18px;font-weight:800;margin-bottom:8px;}
.confirm-msg{font-size:14px;color:var(--text2);line-height:1.5;margin-bottom:20px;}
.confirm-btns{display:flex;gap:10px;}

.action-list{padding:8px 0;}
.action-item{display:flex;align-items:center;gap:14px;padding:14px 20px;cursor:pointer;font-size:15px;font-weight:600;color:var(--text);transition:background 0.12s;}
.action-item:active{background:var(--surface2);}
.action-item.danger{color:var(--danger);}
.action-item.gold-color{color:var(--gold-dark);}
.action-item.success-color{color:var(--success);}
.action-icon{font-size:20px;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--surface2);flex-shrink:0;}

::-webkit-scrollbar{display:none;}

/* ==========================================================================
   AUTH LOADING OVERLAY
   ========================================================================== */
.auth-loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--text);
}

.loader-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   DESKTOP / TABLET RESPONSIVENESS
   ========================================================================== */
@media (min-width: 769px) {
  /* Center the app shell as a clean workspace column */
  .view {
    max-width: 800px;
    left: 50% !important;
    transform: translateX(-50%) !important;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.05);
  }

  .view.slide-left {
    transform: translateX(-70%) !important; /* adjust side-slip translation for desktop */
    opacity: 0.2;
  }

  /* Keep bottom navigation docked to the centered container */
  .bottom-nav {
    max-width: 800px;
    left: 50% !important;
    transform: translateX(-50%) !important;
  }

  /* Reposition FAB relative to the centered view */
  .fab {
    position: absolute;
    bottom: calc(var(--nav-h) + 20px);
    right: 24px;
  }

  /* Grid layout for Active & Completed Projects */
  #home-active, #home-done {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    padding: 0 16px;
  }

  .project-card {
    margin: 0 !important;
  }

  /* Grid layout for Receipts List */
  #pv-receipts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    padding: 0 16px;
  }

  .receipt-card {
    margin: 0 !important;
  }

  /* Transform Bottom Sheets into Centered Modals */
  .sheet-backdrop {
    align-items: center;
    justify-content: center;
  }

  .sheet {
    width: 500px;
    border-radius: 20px;
    max-height: 85vh;
    box-shadow: var(--shadow-lg);
    animation: modal-zoom 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
    padding-bottom: 20px;
  }

  @keyframes modal-zoom {
    from {
      transform: scale(0.9) translateY(20px);
      opacity: 0;
    }
    to {
      transform: scale(1) translateY(0);
      opacity: 1;
    }
  }
}