/* ============================================================
   Postcard PWA — Styles
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #6C5CE7;
  --primary-light: #A29BFE;
  --primary-dark: #5A4BD1;
  --secondary: #FD79A8;
  --bg: #F8F9FA;
  --surface: #FFFFFF;
  --text: #2D3436;
  --text-secondary: #636E72;
  --text-muted: #B2BEC3;
  --border: #E2E8F0;
  --shadow: 0 2px 8px rgba(0,0,0,.08);
  --radius: 12px;
  --radius-sm: 8px;
  --nav-height: 64px;
  --header-height: 56px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --green: #00B894;
  --green-bg: #E6F9F4;
  --red: #E74C3C;
  --bg-secondary: #F1F2F6;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;
  background:var(--bg);color:var(--text);height:100%;overflow:hidden;
  -webkit-tap-highlight-color:transparent;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none}
button{cursor:pointer;border:none;background:none;font:inherit;color:inherit}
input,textarea,select{font:inherit;color:inherit}
img{max-width:100%;display:block}
.hidden{display:none!important}

/* ---------- App Shell ---------- */
#app{
  height:100%;overflow-y:auto;
  padding-bottom:calc(var(--nav-height) + var(--safe-bottom));
  -webkit-overflow-scrolling:touch;
}
#app::-webkit-scrollbar{display:none}

/* ---------- Bottom Nav ---------- */
#bottom-nav{
  position:fixed;bottom:0;left:0;right:0;
  height:calc(var(--nav-height) + var(--safe-bottom));
  padding-bottom:var(--safe-bottom);
  background:var(--surface);
  border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-around;
  z-index:1000;box-shadow:0 -2px 10px rgba(0,0,0,.04);
}
.nav-item{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  min-width:56px;padding:6px 12px;
  color:var(--text-muted);font-size:10px;font-weight:500;
  transition:color .15s;position:relative;
}
.nav-item.active{color:var(--primary)}
.nav-item svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.badge{
  position:absolute;top:2px;right:8px;
  background:var(--secondary);color:#fff;
  font-size:10px;min-width:16px;height:16px;
  border-radius:8px;display:flex;align-items:center;justify-content:center;
  font-weight:600;
}

/* ---------- Page Container ---------- */
.page{
  padding:16px;max-width:640px;margin:0 auto;
  animation:fadeIn .2s ease;
}
.page-header{
  display:flex;align-items:center;gap:12px;
  margin-bottom:16px;padding-top:8px;
}
.page-header h1{font-size:22px;font-weight:700;flex:1}
.page-header .back-btn{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg);color:var(--text);
  flex-shrink:0;
}
.page-header .back-btn svg{width:20px;height:20px}
.page-header .back-btn:hover{background:var(--border)}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* ---------- Auth Page ---------- */
.auth-page{
  display:flex;flex-direction:column;justify-content:center;
  min-height:100%;padding:40px 24px;text-align:center;
}
.auth-logo{
  width:80px;height:80px;margin:0 auto 16px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  border-radius:24px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 32px rgba(108,92,231,.3);
}
.auth-logo svg{width:48px;height:48px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.auth-title{font-size:24px;font-weight:700;margin-bottom:4px}
.auth-subtitle{color:var(--text-secondary);margin-bottom:32px;font-size:14px}
.auth-tabs{display:flex;gap:0;margin-bottom:24px;background:var(--bg);border-radius:var(--radius-sm);padding:4px}
.auth-tab{
  flex:1;padding:10px;border-radius:6px;font-size:14px;font-weight:500;
  color:var(--text-secondary);transition:all .2s;
}
.auth-tab.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}

/* ---------- Form ---------- */
.form-group{margin-bottom:16px;text-align:left}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:6px}
.form-input{
  width:100%;padding:12px 14px;border:2px solid var(--border);border-radius:var(--radius-sm);
  font-size:15px;background:var(--surface);transition:border-color .2s;outline:none;
}
.form-input:focus{border-color:var(--primary)}
.form-input.error{border-color:#E74C3C}
.form-textarea{min-height:80px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-checkbox{display:flex;align-items:center;gap:8px;font-size:14px;cursor:pointer}
.form-checkbox input{width:18px;height:18px;accent-color:var(--primary)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;
  transition:all .15s;width:100%;border:none;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed}
.btn-secondary{background:var(--bg);color:var(--text);border:2px solid var(--border)}
.btn-secondary:hover{background:var(--border)}
.btn-danger{background:#FF6B6B;color:#fff}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn-sm{padding:8px 16px;font-size:13px;width:auto}
.btn-icon{
  width:44px;height:44px;border-radius:50%;padding:0;
  display:inline-flex;align-items:center;justify-content:center;
}
.text-btn{color:var(--primary);font-weight:600;font-size:14px;padding:4px 0;display:inline-block;width:auto}

/* ---------- Image Upload ---------- */
.upload-area{
  border:2px dashed var(--border);border-radius:var(--radius);
  padding:32px;text-align:center;cursor:pointer;
  transition:all .2s;background:var(--bg);position:relative;
  min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
}
.upload-area:hover{border-color:var(--primary);background:#F0EEFF}
.upload-area.has-image{border-style:solid;padding:8px}
.upload-area img{max-height:200px;border-radius:var(--radius-sm);object-fit:contain;width:100%;background:#fff}
.upload-area .upload-camera{width:40px;height:40px;color:var(--text-muted)}
.upload-area .upload-label{font-size:14px;color:var(--text-secondary);font-weight:500}
.upload-area .upload-hint{font-size:12px;color:var(--text-muted)}
.upload-area input{position:absolute;inset:0;opacity:0;cursor:pointer}

/* ---------- FAB ---------- */
.fab{
  position:fixed;bottom:calc(var(--nav-height) + var(--safe-bottom) + 20px);
  right:20px;width:56px;height:56px;border-radius:50%;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 16px rgba(108,92,231,.4);
  z-index:100;transition:transform .15s,box-shadow .15s;
}
.fab:hover{transform:scale(1.05);box-shadow:0 6px 24px rgba(108,92,231,.5)}
.fab svg{width:24px;height:24px}

/* ---------- Postcard Grid ---------- */
.postcard-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:12px;
}
.postcard-card{
  background:var(--surface);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);cursor:pointer;
  transition:transform .15s;
}
.postcard-card:hover{transform:translateY(-2px)}
.postcard-card-img{
  aspect-ratio:3/2;background:var(--bg);object-fit:cover;width:100%;
}
.postcard-card-info{padding:8px 10px}
.postcard-card-location{
  font-size:12px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.postcard-card-date{
  font-size:11px;color:var(--text-secondary);margin-top:2px;
}
.postcard-card-status{
  display:inline-block;font-size:10px;padding:1px 6px;border-radius:4px;
  background:var(--bg);color:var(--text-secondary);margin-top:4px;font-weight:500;
}
.postcard-card-status.sent{background:#DFE6E9;color:var(--text)}
.postcard-card-status.delivered{background:var(--primary-light);color:#fff}
.postcard-card-status.collected{background:#E8F8F5;color:#00B894}

/* ---------- Empty State ---------- */
.empty-state{
  text-align:center;padding:60px 20px;color:var(--text-secondary);
}
.empty-state svg{width:64px;height:64px;color:var(--text-muted);margin-bottom:16px}
.empty-state h3{font-size:18px;color:var(--text);margin-bottom:8px}
.empty-state p{font-size:14px}

/* ---------- Postcard Detail ---------- */
.detail-images{position:relative;background:var(--surface);border-radius:var(--radius);overflow:hidden;margin-bottom:16px}
.detail-images img{width:100%;aspect-ratio:3/2;object-fit:contain;background:#000;display:block}
.detail-flip-btn{
  position:absolute;bottom:12px;right:12px;
  background:rgba(0,0,0,.6);color:#fff;
  border:none;padding:8px 14px;border-radius:20px;
  font-size:13px;font-weight:500;display:flex;align-items:center;gap:6px;
}
.detail-info{background:var(--surface);border-radius:var(--radius);padding:16px;margin-bottom:12px}
.detail-info-row{display:flex;justify-content:space-between;padding:10px 0}
.detail-info-row+.detail-info-row{border-top:1px solid var(--border)}
.detail-info-label{color:var(--text-secondary);font-size:13px}
.detail-info-value{font-size:14px;font-weight:500;text-align:right;max-width:60%}
.detail-notes{background:var(--surface);border-radius:var(--radius);padding:16px;margin-bottom:12px;font-size:14px;color:var(--text-secondary);line-height:1.5}
.detail-mini-map{height:180px;border-radius:var(--radius);overflow:hidden;margin-bottom:16px}
.detail-actions{display:flex;gap:12px;margin-top:16px}

/* ---------- Map Page ---------- */
#map{width:100%;height:calc(100vh - var(--nav-height) - var(--safe-bottom) - 60px);border-radius:var(--radius);z-index:1}
.map-popup-img{width:120px;height:80px;object-fit:cover;border-radius:6px;margin-bottom:6px}
.map-popup-info{font-size:12px;line-height:1.4}

/* ---------- Notifications ---------- */
.notif-list{display:flex;flex-direction:column;gap:10px}
.notif-card{
  background:var(--surface);border-radius:var(--radius);padding:14px 16px;
  box-shadow:var(--shadow);border-left:3px solid var(--primary);
}
.notif-card.picked-up{border-left-color:#00B894;opacity:.75}
.notif-node{font-size:12px;color:var(--primary);font-weight:600;margin-bottom:4px}
.notif-serial{font-size:14px;font-weight:600}
.notif-name{font-size:13px;color:var(--text-secondary)}
.notif-status{
  display:inline-block;font-size:11px;padding:2px 8px;border-radius:10px;
  font-weight:500;margin-top:6px;
}
.notif-status.pending{background:#FEF3C7;color:#D97706}
.notif-status.picked-up{background:#D1FAE5;color:#059669}
.notif-date{font-size:11px;color:var(--text-muted);margin-top:4px}

/* ---------- Profile ---------- */
.profile-card{background:var(--surface);border-radius:var(--radius);padding:20px;text-align:center;margin-bottom:16px;box-shadow:var(--shadow)}
.profile-avatar{
  width:72px;height:72px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  margin:0 auto 12px;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:28px;font-weight:700;
}
.profile-username{font-size:20px;font-weight:700}
.profile-joined{font-size:12px;color:var(--text-muted);margin-top:4px}
.profile-section{background:var(--surface);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:var(--shadow)}
.profile-section h3{font-size:14px;color:var(--text-secondary);margin-bottom:12px;font-weight:600}
.profile-stat{text-align:center;padding:16px 0}
.profile-stat-num{font-size:32px;font-weight:700;color:var(--primary)}
.profile-stat-label{font-size:12px;color:var(--text-secondary);margin-top:4px}

/* ---------- Loading & Toast ---------- */
.spinner{
  width:24px;height:24px;border:3px solid var(--border);
  border-top-color:var(--primary);border-radius:50%;
  animation:spin .6s linear infinite;margin:40px auto;
}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{
  position:fixed;top:20px;left:50%;transform:translateX(-50%);
  background:#333;color:#fff;padding:12px 24px;border-radius:var(--radius-sm);
  font-size:14px;z-index:9999;animation:toastIn .3s ease;
  max-width:90%;text-align:center;
}
.toast.error{background:#E74C3C}
.toast.success{background:#00B894}
@keyframes toastIn{from{opacity:0;transform:translateX(-50%) translateY(-20px)}}
/* ---------- Admin Tabs ---------- */
.admin-tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:16px}
.admin-tab{padding:10px 20px;font-size:14px;font-weight:500;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;cursor:pointer;color:var(--text-muted);transition:color .15s,border-color .15s}
.admin-tab.active{color:var(--primary);border-bottom-color:var(--primary)}
.admin-tab:hover{color:var(--text-secondary)}
/* ---------- Responsive ---------- */
@media(min-width:768px){
  #app{max-width:480px;margin:0 auto;border-left:1px solid var(--border);border-right:1px solid var(--border);background:var(--surface)}
  #bottom-nav{max-width:480px;left:50%;transform:translateX(-50%)}
}
/* ---------- Leaflet overrides ---------- */
.leaflet-container{font-family:inherit!important}