/* ========================
   Base & Reset
   ======================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --clr-bg: #0f172a;
  --clr-surface: #1e293b;
  --clr-surface2: #273349;
  --clr-border: #334155;
  --clr-text: #e2e8f0;
  --clr-muted: #94a3b8;
  --clr-accent: #3b82f6;
  --clr-green: #22c55e;
  --clr-red: #ef4444;
  --clr-orange: #f97316;
  --clr-alarm-bg: #450a0a;
  --clr-alarm-surface: #7f1d1d;
  --radius: 8px;
}

html, body { height: 100%; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--clr-bg);
  color: var(--clr-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.roll-call-active { background: var(--clr-alarm-bg); }

/* ========================
   Header
   ======================== */
#app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--clr-surface);
  border-bottom: 2px solid var(--clr-border);
  gap: 16px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

body.roll-call-active #app-header {
  background: var(--clr-alarm-surface);
  border-bottom-color: var(--clr-red);
  animation: pulse-border 1.5s infinite;
}

@keyframes pulse-border {
  0%, 100% { border-bottom-color: var(--clr-red); }
  50%       { border-bottom-color: #ff8080; }
}

.header-left { display: flex; align-items: center; gap: 12px; }
.app-icon { font-size: 2rem; }
h1 { font-size: 1.3rem; font-weight: 700; letter-spacing: 0.05em; }

.header-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

#site-select {
  padding: 7px 12px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  color: var(--clr-text);
  font-size: 0.875rem;
  cursor: pointer;
}

#roll-call-timer-wrapper {
  font-size: 1.4rem;
  font-weight: 700;
  font-family: 'Consolas', monospace;
  color: var(--clr-orange);
  padding: 0 8px;
}

/* ========================
   Badges
   ======================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

.badge-ok    { background: rgba(34,197,94,.2); color: var(--clr-green); border: 1px solid var(--clr-green); }
.badge-alarm { background: rgba(239,68,68,.25); color: #fca5a5; border: 1px solid var(--clr-red); animation: blink 0.8s infinite; }

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ========================
   Buttons
   ======================== */
.btn {
  padding: 7px 14px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
}
.btn:hover  { opacity: .85; }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

.btn-primary   { background: var(--clr-accent); color: #fff; }
.btn-secondary { background: var(--clr-surface2); color: var(--clr-text); border: 1px solid var(--clr-border); }
.btn-danger    { background: var(--clr-red); color: #fff; }
.btn-warning   { background: var(--clr-orange); color: #fff; }
.btn-xs        { padding: 3px 8px; font-size: 0.75rem; background: var(--clr-surface2); color: var(--clr-muted); border: 1px solid var(--clr-border); border-radius: var(--radius); cursor: pointer; }

.btn-rc-present {
  padding: 3px 8px; font-size: 0.75rem;
  background: rgba(34,197,94,.15); color: #86efac;
  border: 1px solid rgba(34,197,94,.4); border-radius: var(--radius); cursor: pointer;
}
.btn-rc-present.active { background: var(--clr-green); color: #000; border-color: var(--clr-green); }

.btn-rc-absent {
  padding: 3px 8px; font-size: 0.75rem;
  background: rgba(239,68,68,.15); color: #fca5a5;
  border: 1px solid rgba(239,68,68,.4); border-radius: var(--radius); cursor: pointer;
  margin-left: 4px;
}
.btn-rc-absent.active { background: var(--clr-red); color: #fff; border-color: var(--clr-red); }

/* ========================
   Export Dropdown
   ======================== */
.export-dropdown {
  position: relative;
  display: inline-block;
}

.export-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  min-width: 160px;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
  overflow: hidden;
}

.export-menu.open { display: block; }

.export-dropdown--up .export-menu {
  top: auto;
  bottom: calc(100% + 6px);
}

.export-menu button {
  display: block;
  width: 100%;
  padding: 9px 16px;
  background: none;
  border: none;
  color: var(--clr-text);
  font-size: 0.875rem;
  text-align: left;
  cursor: pointer;
  transition: background .15s;
}

.export-menu button:hover { background: var(--clr-surface2); }

/* ========================
   Summary Bar (roll call)
   ======================== */
#summary-bar {
  display: flex;
  gap: 10px;
  padding: 10px 20px;
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  flex-wrap: wrap;
  flex-shrink: 0;
}

.sum-stat {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 8px 16px;
}
.sum-stat.s-green { border-color: var(--clr-green); }
.sum-stat.s-red   { border-color: var(--clr-red); }

.sum-label { font-size: 0.72rem; color: var(--clr-muted); text-transform: uppercase; letter-spacing: .05em; }
.sum-val   { font-size: 1.4rem; font-weight: 700; line-height: 1; }
.sum-stat.s-green .sum-val { color: var(--clr-green); }
.sum-stat.s-red   .sum-val { color: var(--clr-red); }

/* ========================
   Tab Bar
   ======================== */
#tab-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 20px;
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  flex-wrap: wrap;
  flex-shrink: 0;
}

.tabs { display: flex; gap: 4px; flex-wrap: wrap; }

.tab {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  color: var(--clr-muted);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tab:hover { background: var(--clr-surface2); color: var(--clr-text); }
.tab.active { background: var(--clr-accent); border-color: var(--clr-accent); color: #fff; }

.tab-badge {
  background: rgba(255,255,255,.18);
  border-radius: 999px;
  padding: 1px 8px;
  font-size: 0.72rem;
  font-weight: 700;
}
.tab.active .tab-badge { background: rgba(255,255,255,.3); }

.tab-badge-warn { color: var(--clr-orange); }
.tab.active .tab-badge-warn { color: #fff; }

#search-input {
  width: 280px;
  padding: 8px 12px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  color: var(--clr-text);
  font-size: 0.875rem;
}
#search-input:focus { outline: none; border-color: var(--clr-accent); }

/* ========================
   Table
   ======================== */
#table-wrapper {
  flex: 1;
  overflow: auto;
  padding: 0;
}

#main-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

#main-table thead th {
  text-align: left;
  padding: 10px 16px;
  background: var(--clr-surface);
  color: var(--clr-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--clr-border);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 1;
}

#main-table tbody tr {
  border-bottom: 1px solid var(--clr-border);
  transition: background .1s;
}
#main-table tbody tr:hover { background: var(--clr-surface2); }
#main-table tbody td { padding: 10px 16px; vertical-align: middle; }

.empty-row { text-align: center; color: var(--clr-muted); padding: 48px !important; font-size: 0.9rem; }

.td-pin    { color: var(--clr-muted); font-family: 'Consolas', monospace; white-space: nowrap; }
.td-time   { color: var(--clr-muted); font-family: 'Consolas', monospace; white-space: nowrap; }
.td-reader { color: var(--clr-muted); font-size: 0.8rem; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.td-rc     { white-space: nowrap; }

/* Direction pills */
.dir-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}
.dir-in      { background: rgba(239,68,68,.2); color: #fca5a5; border: 1px solid var(--clr-red); }
.dir-out     { background: rgba(34,197,94,.2); color: #86efac; border: 1px solid var(--clr-green); }
.dir-unknown { background: rgba(148,163,184,.12); color: var(--clr-muted); border: 1px solid var(--clr-border); }

/* Roll call pills */
.rc-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
  margin-right: 6px;
}
.rc-present { background: rgba(34,197,94,.2); color: #86efac; border: 1px solid var(--clr-green); }
.rc-absent  { background: rgba(239,68,68,.2); color: #fca5a5; border: 1px solid var(--clr-red); }
.rc-pending { background: rgba(148,163,184,.1); color: var(--clr-muted); border: 1px solid var(--clr-border); }

/* Roll call row highlights */
tr.row-rc-present td { background: rgba(34,197,94,.04); }
tr.row-rc-absent  td { background: rgba(239,68,68,.04); opacity: .65; }

.warn-icon { color: var(--clr-orange); }

/* ========================
   Event Log
   ======================== */
#event-log-wrapper {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 10px 20px;
  max-height: 160px;
  overflow-y: auto;
  flex-shrink: 0;
}

.log-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--clr-muted);
  font-weight: 600;
  margin-bottom: 6px;
}

#event-log { list-style: none; display: flex; flex-direction: column; gap: 2px; }
#event-log li { font-size: 0.76rem; color: var(--clr-muted); font-family: 'Consolas', monospace; }
#event-log li .log-time { color: var(--clr-accent); margin-right: 6px; }
#event-log li .log-in   { color: #fca5a5; }
#event-log li .log-out  { color: #86efac; }

/* ========================
   Modal
   ======================== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 12px;
  padding: 28px;
  max-width: 560px;
  width: 90%;
  max-height: 80vh;
  overflow-y: visible;
}

.modal-content h2 { margin-bottom: 20px; font-size: 1.2rem; }

.summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.summary-stat {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 10px 14px;
}
.summary-stat .s-label { font-size: 0.68rem; color: var(--clr-muted); text-transform: uppercase; }
.summary-stat .s-value { font-size: 1.3rem; font-weight: 700; margin-top: 2px; }
.summary-stat .s-sm    { font-size: 0.9rem !important; }
.summary-stat.s-green  { border-color: var(--clr-green); }
.summary-stat.s-green .s-value { color: var(--clr-green); }
.summary-stat.s-red    { border-color: var(--clr-red); }
.summary-stat.s-red .s-value   { color: var(--clr-red); }

/* ========================
   Loading Bar
   ======================== */
#loading-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 8px 20px;
  background: var(--clr-surface);
  border-bottom: 2px solid var(--clr-accent);
  font-size: 0.875rem;
  color: var(--clr-accent);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

#loading-bar::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -40%;
  width: 40%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
  animation: loading-slide 1.4s ease-in-out infinite;
}

@keyframes loading-slide {
  0%   { left: -40%; }
  100% { left: 140%; }
}

.loading-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--clr-border);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

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

/* ========================
   Login
   ======================== */
.login-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-box {
  width: 100%;
  max-width: 360px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: center;
}

.login-icon { font-size: 2.4rem; margin-bottom: 8px; }
.login-title { font-size: 1.2rem; font-weight: 700; letter-spacing: 0.05em; }
.login-subtitle { color: var(--clr-muted); font-size: 0.875rem; margin-bottom: 20px; }

.login-box label {
  text-align: left;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 12px;
  margin-bottom: 4px;
}

.login-box input {
  padding: 0.6rem 0.75rem;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  color: var(--clr-text);
  font-size: 0.95rem;
}

.login-submit { margin-top: 20px; }

.login-error {
  background: var(--clr-alarm-bg);
  border: 1px solid var(--clr-red);
  color: var(--clr-text);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

/* ========================
   Utils
   ======================== */
.hidden { display: none !important; }