/* ======================================================
   ShareApp – Design System
   Aesthetic: Dark industrial with teal accent, clean grid
   ====================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Syne:wght@400;600;700;800&display=swap');

:root {
  --bg: #ffffff;
  --bg2: #f0f4fb;
  --bg3: #dde5f5;
  --border: #c2ceea;
  --accent: #1a3584;
  --accent2: #0f2566;
  --warn: #c47a0a;
  --danger: #c93535;
  --text: #0a1628;
  --text2: #374d7a;
  --text3: #7289b0;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(10, 30, 90, 0.12);
  --font-ui: 'Syne', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --nav-h: 60px;
  --tab-h: 64px;
  --bg-nav: rgba(255, 255, 255, 0.95);
  --bg-tab: rgba(255, 255, 255, 0.97);
  --on-accent: #ffffff;
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ---- Layout ---- */
#app { display: flex; flex-direction: column; min-height: 100vh; }

.nav-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 1.25rem;
  gap: 1rem;
}

#app.no-nav .page-wrap { padding-top: 0; }

.nav-logo {
  font-weight: 800; font-size: 1.2rem; letter-spacing: -0.5px;
  color: var(--accent); text-decoration: none; flex: 1;
}
.nav-logo span { color: var(--text); }
.nav-actions { display: flex; gap: .5rem; align-items: center; }

.page-wrap {
  flex: 1;
  padding-top: var(--nav-h);
  padding-bottom: calc(var(--tab-h) + 1rem);
  max-width: 680px;
  margin: 0 auto;
  width: 100%;
  padding-left: 1rem;
  padding-right: 1rem;
}

.tab-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 100;
  height: var(--tab-h);
  background: var(--bg-tab);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  display: flex;
}
.tab-item {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 3px;
  color: var(--text3); font-size: .65rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; cursor: pointer;
  transition: color .15s; border: none; background: none; padding: .5rem .2rem;
}
.tab-item.active { color: var(--accent); }
.tab-item svg { width: 22px; height: 22px; }

/* ---- Cards ---- */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-1px); }

.item-card { cursor: pointer; }
.item-card .item-photo {
  width: 100%; aspect-ratio: 16/9; object-fit: cover;
  background: var(--bg3);
  display: flex; align-items: center; justify-content: center;
}
.item-card .item-photo img { width: 100%; height: 100%; object-fit: cover; }
.item-card .item-photo .placeholder { color: var(--text3); }
.item-card .item-body { padding: .65rem .75rem; }
.item-card .item-type {
  font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .3rem;
}
.item-card .item-title { font-size: .95rem; font-weight: 700; margin-bottom: .35rem; line-height: 1.3; }
.item-card .item-meta {
  display: flex; gap: .4rem; font-size: .78rem; color: var(--text2);
  flex-wrap: wrap; align-items: center;
}
.item-card .item-meta svg { width: 12px; height: 12px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  font-family: var(--font-ui); font-weight: 700; font-size: .88rem;
  border: none; border-radius: var(--radius); cursor: pointer;
  padding: .65rem 1.25rem; transition: all .15s; text-decoration: none;
  letter-spacing: .02em;
}
.btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    vertical-align: middle;
    flex-shrink: 0;
}
.cal-nav .btn svg {
    width: 18px;
    height: 18px;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent2); }
.btn-outline { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-outline:hover { background: rgba(0,200,150,.1); }
.btn-ghost { background: var(--bg3); color: var(--text); }
.btn-ghost:hover { background: var(--border); }
.btn-danger { background: rgba(224,82,82,.15); color: var(--danger); border: 1px solid rgba(224,82,82,.3); }
.btn-danger:hover { background: rgba(224,82,82,.25); }
.btn-sm { padding: .4rem .85rem; font-size: .8rem; }
.btn-full { width: 100%; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ---- Forms ---- */
.form-group { margin-bottom: 1.1rem; }
label {
  display: block; font-size: .8rem; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--text2); margin-bottom: .4rem;
}
input, select, textarea {
  width: 100%; padding: .7rem 1rem;
  background: var(--bg3); border: 1.5px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  font-family: var(--font-ui); font-size: .95rem;
  transition: border-color .15s;
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
input::placeholder, textarea::placeholder { color: var(--text3); }
select option { background: var(--bg2); }
textarea { resize: vertical; min-height: 90px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ---- Search bar ---- */
.search-wrap {
  background: var(--bg2); border: 1.5px solid var(--border);
  border-radius: var(--radius-lg); padding: 1rem;
  margin-bottom: 1.25rem;
}
.search-wrap h3 { font-size: .85rem; letter-spacing: .07em; text-transform: uppercase; color: var(--text2); margin-bottom: .75rem; }
.search-filters { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.search-filters input, .search-filters select { padding: .55rem .85rem; font-size: .88rem; }

/* ---- Page sections ---- */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 0 1rem;
}
.page-header h1 { font-size: 1.4rem; font-weight: 800; }
.page-header p { font-size: .85rem; color: var(--text2); margin-top: .2rem; }

.section-title {
  font-size: .75rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text3);
  margin-bottom: .75rem; padding-bottom: .5rem;
  border-bottom: 1px solid var(--border);
}

/* ---- Item grid ---- */
.item-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }

/* ---- Detail page ---- */
.detail-photo {
  width: 100%; background: var(--bg3);
  border-radius: var(--radius-lg); overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  min-height: 120px;
  margin-bottom: 1rem;
  margin-top: 1rem;
}
.detail-photo img { width: 100%; height: auto; display: block; }

.detail-badge {
  display: inline-block; font-size: .7rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; padding: .25rem .65rem; border-radius: 20px;
  background: rgba(0,200,150,.12); color: var(--accent); margin-bottom: .65rem;
}
.detail-title { font-size: 1.55rem; font-weight: 800; line-height: 1.2; margin-bottom: .75rem; }
.detail-meta { display: flex; flex-wrap: wrap; gap: .75rem; font-size: .85rem; color: var(--text2); margin-bottom: 1.25rem; }
.detail-meta span { display: flex; align-items: center; gap: .35rem; }
.detail-meta svg { width: 15px; height: 15px; }

.info-box {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .85rem 1rem; margin-bottom: 1rem;
}
.info-box .ib-label { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--text3); margin-bottom: .25rem; }
.info-box .ib-val { font-size: .95rem; }

/* ---- Calendar ---- */
.calendar-wrap { margin-bottom: 1.5rem; }
.cal-nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: .75rem; }
.cal-nav h3 { font-size: .95rem; font-weight: 700; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px; }
.cal-day-label { text-align: center; font-size: .65rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--text3); padding: .25rem 0; }
.cal-day {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  border-radius: 6px; font-size: .78rem; cursor: pointer; transition: all .1s;
  font-family: var(--font-mono);
}
.cal-day.empty { cursor: default; }
.cal-day.today { color: var(--accent); font-weight: 700; }
.cal-day.blocked { background: rgba(224,82,82,.18); color: var(--danger); cursor: not-allowed; }
.cal-day.rented { background: rgba(245,166,35,.12); color: var(--warn); cursor: not-allowed; }
.cal-day.selected { background: var(--accent); color: var(--on-accent); font-weight: 700; }
.cal-day.in-range { background: rgba(0,200,150,.18); color: var(--accent); }
.cal-day.available:hover { background: rgba(0,200,150,.1); }
.cal-legend { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: .75rem; font-size: .75rem; color: var(--text2); }
.cal-legend span { display: flex; align-items: center; gap: .35rem; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; }

/* ---- Status badges ---- */
.status {
  display: inline-block; font-size: .7rem; font-weight: 700; letter-spacing: .07em;
  text-transform: uppercase; padding: .2rem .6rem; border-radius: 20px;
}
.status-pending  { background: rgba(245,166,35,.15);  color: var(--warn); }
.status-accepted { background: rgba(0,200,150,.15);   color: var(--accent); }
.status-declined { background: rgba(224,82,82,.15);   color: var(--danger); }
.status-cancelled{ background: rgba(74,85,104,.2);    color: var(--text3); }
.status-returned { background: rgba(74,85,104,.15);   color: var(--text2); }

/* ---- Request card ---- */
.req-card { padding: .65rem .75rem; }
.req-card .req-head { display: flex; justify-content: space-between; align-items: flex-start; gap: .5rem; margin-bottom: .25rem; }
.req-card .req-item { font-weight: 700; font-size: .85rem; }
.req-card .req-dates { font-size: .75rem; color: var(--text2); margin-bottom: .15rem; }
.req-card .req-by   { font-size: .75rem; color: var(--text2); }
.req-card .req-actions { display: flex; gap: .4rem; margin-top: .5rem; flex-wrap: wrap; }
.req-card .status { font-size: .62rem; padding: .15rem .5rem; }
.req-card .req-actions .btn-sm { padding: .3rem .6rem; font-size: .78rem; }

/* ---- Modal ---- */
.modal-bg {
  position: fixed; inset: 0; background: rgba(0,0,0,.65); backdrop-filter: blur(4px);
  z-index: 200; display: flex; align-items: flex-end; justify-content: center;
}
.modal {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  width: 100%; max-width: 680px; max-height: 90vh;
  overflow-y: auto; padding: 1.5rem;
  animation: slideUp .22s ease;
}
@keyframes slideUp { from { transform: translateY(60px); opacity: 0; } }
.modal-handle { width: 36px; height: 4px; background: var(--border); border-radius: 2px; margin: 0 auto 1.25rem; }
.modal-title { font-size: 1.15rem; font-weight: 800; margin-bottom: 1.25rem; }

/* ---- Toast ---- */
#toast-container { position: fixed; top: 70px; right: 1rem; z-index: 300; display: flex; flex-direction: column; gap: .5rem; }
.toast {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .75rem 1.1rem;
  font-size: .88rem; font-weight: 600; min-width: 220px;
  box-shadow: var(--shadow); animation: fadeIn .2s ease;
  display: flex; align-items: center; gap: .5rem;
}
.toast.success { border-color: var(--accent); color: var(--accent); }
.toast.error   { border-color: var(--danger); color: var(--danger); }
.toast.info    { border-color: var(--text3); color: var(--text2); }
@keyframes fadeIn { from { opacity: 0; transform: translateX(20px); } }

/* ---- Photo upload ---- */
.photo-upload {
  width: 100%; aspect-ratio: 16/9;
  border: 2px dashed var(--border); border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  cursor: pointer; transition: border-color .15s; gap: .5rem; position: relative;
  overflow: hidden;
}
.photo-upload:hover { border-color: var(--accent); }
.photo-upload input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; }
.photo-upload img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.photo-upload .upload-hint { color: var(--text3); font-size: .85rem; text-align: center; z-index: 1; pointer-events: none; }
.photo-upload svg { color: var(--text3); z-index: 1; pointer-events: none; }

/* ---- Auth page ---- */
.auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 2rem 1.25rem; background: var(--bg);
}
.auth-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2rem;
  width: 100%; max-width: 400px;
}
.auth-logo { font-size: 1.5rem; font-weight: 800; color: var(--accent); margin-bottom: .25rem; }
.auth-logo span { color: var(--text); }
.auth-sub  { color: var(--text2); font-size: .9rem; margin-bottom: 1.75rem; }
.auth-switch { text-align: center; margin-top: 1.25rem; font-size: .88rem; color: var(--text2); }
.auth-switch a { color: var(--accent); cursor: pointer; font-weight: 600; }

/* ---- Locations page ---- */
.loc-card { padding: 1rem; display: flex; flex-direction: column; gap: .35rem; }
.loc-name { font-weight: 700; font-size: 1rem; }
.loc-addr { font-size: .85rem; color: var(--text2); display: flex; align-items: center; gap: .4rem; }
.loc-addr svg { width: 13px; height: 13px; flex-shrink: 0; }
.loc-actions { display: flex; gap: .5rem; margin-top: .35rem; }

/* ---- Loading spinner ---- */
.spinner {
  width: 28px; height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  margin: 2rem auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loader-wrap { display: flex; justify-content: center; padding: 3rem 0; }
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--text3); }
.empty-state svg { width: 48px; height: 48px; margin-bottom: 1rem; opacity: .4; }
.empty-state p { font-size: .9rem; }

/* ---- Divider ---- */
hr { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }

/* ---- Misc ---- */
a { color: var(--accent); text-decoration: none; }
.tag {
  display: inline-block; font-size: .7rem; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; padding: .2rem .55rem; border-radius: 6px;
  background: var(--bg3); color: var(--text2);
}
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-sm { gap: .5rem; }
.mb-1 { margin-bottom: 1rem; }
.text-sm { font-size: .85rem; }
.text-muted { color: var(--text2); }
.text-danger { color: var(--danger); }
.text-success { color: var(--accent); }

/* ---- Chat ---- */

/* Conversation list */
.conv-item {
  display: flex; align-items: center; gap: .85rem;
  padding: .9rem 1rem; cursor: pointer;
}
.conv-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 800; color: var(--on-accent);
}
.conv-body { flex: 1; min-width: 0; }
.conv-name {
  font-weight: 700; font-size: .95rem;
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: .2rem;
}
.conv-time { font-size: .72rem; color: var(--text3); font-weight: 400; }
.conv-preview {
  font-size: .82rem; color: var(--text2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.conv-unread {
  background: var(--danger); color: #fff;
  border-radius: 10px; min-width: 20px; height: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: .7rem; font-weight: 800; flex-shrink: 0;
  padding: 0 5px;
}

/* Chat view — fixed full height between nav and tab bar */
.chat-view {
  position: fixed;
  top: var(--nav-h);
  bottom: var(--tab-h);
  left: 0; right: 0;
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  overflow-x: hidden;       /* never allow the chat screen to scroll sideways */
}

.chat-header {
  display: flex; align-items: center; gap: .75rem;
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  flex-shrink: 0;
}
.chat-header-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: var(--on-accent); font-size: .95rem;
}
.chat-header-name { font-weight: 700; font-size: .95rem; }

/* Scrollable message area */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  -webkit-overflow-scrolling: touch;
}

/* Message rows — MY messages LEFT, THEIRS RIGHT */
.msg-row {
  display: flex;
  flex-direction: column;
  max-width: 75%;
}
.msg-row.me   { align-self: flex-start; align-items: flex-start; }
.msg-row.them { align-self: flex-end;   align-items: flex-end; }

.msg-bubble {
  padding: .6rem .9rem;
  font-size: .9rem;
  line-height: 1.45;
  word-break: break-word;
}
/* My messages: LEFT side, teal background */
.msg-row.me .msg-bubble {
  background: var(--accent);
  color: var(--on-accent);
  border-radius: 4px 14px 14px 14px;
}
/* Their messages: RIGHT side, dark background */
.msg-row.them .msg-bubble {
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px 4px 14px 14px;
}
.msg-time {
  font-size: .65rem;
  color: var(--text3);
  margin-top: .25rem;
  padding: 0 .2rem;
}

/* Chat input bar */
.chat-input-bar {
  display: flex; gap: .5rem; align-items: center;
  padding: .65rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--bg2);
  flex-shrink: 0;
}
.chat-input-bar input {
  flex: 1; margin: 0;
  min-width: 0;            /* allow the input to shrink so the send button stays on screen */
  padding: .6rem .9rem;
  border-radius: 20px;
  font-size: .9rem;
}
.chat-input-bar .btn {
  flex-shrink: 0;
  padding: .6rem .85rem;
  border-radius: 50%;
  width: 40px; height: 40px;
}

/* Unread badge on tab bar — hidden by default, shown via .visible class */
.tab-badge {
  display: none;
  position: absolute;
  top: 6px;
  right: calc(50% - 20px);
  background: var(--danger);
  color: #fff;
  font-size: .55rem;
  font-weight: 800;
  border-radius: 10px;
  padding: 1px 5px;
  min-width: 16px;
  text-align: center;
  line-height: 1.4;
  pointer-events: none;
}
.tab-badge.visible { display: block; }

@media (prefers-color-scheme: light) {
  /* Keep dark only for this app intentionally */
}