/* Description: Стили дашборда TEplogradbot
   Version: 1.1.0 — добавлены стили логина, инструкций бота, интервалов */

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

:root {
  --primary:   #e53935;
  --primary-d: #b71c1c;
  --bg:        #f5f5f5;
  --card:      #ffffff;
  --border:    #e0e0e0;
  --text:      #212121;
  --text-2:    #757575;
  --success:   #43a047;
  --warning:   #fb8c00;
  --danger:    #e53935;
  --info:      #1e88e5;
  --sidebar-w: 220px;
  --header-h:  56px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* ===================== HEADER ===================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  padding: 0 20px;
  z-index: 100;
  box-shadow: 0 2px 6px rgba(0,0,0,.2);
}
.header h1 { font-size: 18px; font-weight: 600; flex: 1; }
.header h1 span { font-size: 12px; opacity: .7; margin-left: 8px; }

/* Версия — правый верхний угол */
#version-badge {
  cursor: pointer;
  background: rgba(255,255,255,.2);
  border-radius: 12px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  user-select: none;
  transition: background .2s;
  position: relative;
}
#version-badge:hover { background: rgba(255,255,255,.35); }

/* Changelog popup */
#changelog-popup {
  display: none;
  position: absolute;
  top: 44px;
  right: 0;
  width: 340px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,.2);
  padding: 16px;
  color: var(--text);
  max-height: 400px;
  overflow-y: auto;
  z-index: 200;
}
#changelog-popup.open { display: block; }
#changelog-popup h3 { color: var(--primary); margin-bottom: 10px; font-size: 14px; }
#changelog-popup ul { padding-left: 18px; }
#changelog-popup li { margin-bottom: 6px; font-size: 13px; }
#changelog-popup .date { color: var(--text-2); font-size: 11px; }

/* ===================== LAYOUT ===================== */
.layout { display: flex; padding-top: var(--header-h); min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: #fff;
  border-right: 1px solid var(--border);
  position: fixed;
  top: var(--header-h);
  bottom: 0;
  overflow-y: auto;
  padding: 16px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-2);
  transition: all .2s;
  border-left: 3px solid transparent;
}
.nav-item:hover { background: #fafafa; color: var(--text); }
.nav-item.active { color: var(--primary); border-left-color: var(--primary); background: #fff5f5; font-weight: 500; }
.nav-item .icon { font-size: 18px; width: 22px; text-align: center; }

.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 24px;
  min-height: calc(100vh - var(--header-h));
}

/* ===================== CARDS ===================== */
.card {
  background: var(--card);
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 20px;
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===================== STATS ROW ===================== */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}
.stat-card .num { font-size: 32px; font-weight: 700; color: var(--primary); }
.stat-card .lbl { font-size: 12px; color: var(--text-2); margin-top: 4px; }

/* ===================== TABLE ===================== */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { background: #fafafa; text-align: left; padding: 10px 12px; border-bottom: 2px solid var(--border); font-weight: 600; color: var(--text-2); }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:hover td { background: #fafafe; }

/* ===================== BADGES ===================== */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}
.badge-active  { background: #e8f5e9; color: var(--success); }
.badge-closed  { background: #f5f5f5; color: var(--text-2); }
.badge-waiting { background: #fff3e0; color: var(--warning); }
.badge-sent    { background: #e3f2fd; color: var(--info); }
.badge-failed  { background: #ffebee; color: var(--danger); }

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all .2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* ===================== DIALOG VIEW ===================== */
.dialog-panel {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 16px;
  height: calc(100vh - var(--header-h) - 48px);
}
.dialog-list {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow-y: auto;
}
.dialog-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background .15s;
}
.dialog-item:hover { background: #fafafa; }
.dialog-item.active { background: #fff5f5; border-left: 3px solid var(--primary); }
.dialog-item .d-name { font-weight: 600; font-size: 13px; }
.dialog-item .d-preview { font-size: 12px; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-top: 2px; }
.dialog-item .d-time { font-size: 11px; color: var(--text-2); }

.chat-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
}
.chat-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #f8f9fb;
}
.msg-bubble {
  max-width: 75%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.5;
  word-break: break-word;
}
.msg-bubble.user { background: #fff; border: 1px solid var(--border); align-self: flex-start; border-bottom-left-radius: 4px; }
.msg-bubble.assistant { background: var(--primary); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.msg-bubble .msg-time { font-size: 10px; opacity: .6; margin-top: 4px; }

.chat-input {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
}
.chat-input textarea {
  flex: 1;
  resize: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  height: 40px;
}
.chat-input textarea:focus { border-color: var(--primary); }

/* ===================== SETTINGS FORM ===================== */
.settings-form .field { margin-bottom: 20px; }
.settings-form label { display: block; font-weight: 500; margin-bottom: 6px; font-size: 13px; }
.settings-form textarea,
.settings-form input[type=text] {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  resize: vertical;
}
.settings-form textarea:focus,
.settings-form input[type=text]:focus { border-color: var(--primary); }
.settings-form .hint { font-size: 11px; color: var(--text-2); margin-top: 4px; }

/* ===================== LOADER ===================== */
.loader { text-align: center; padding: 40px; color: var(--text-2); font-size: 13px; }
.spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin .7s linear infinite; vertical-align: middle; margin-right: 8px; }
@keyframes spin { to { transform: rotate(360deg) } }

/* ===================== TOAST ===================== */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 1000; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 12px 18px;
  border-radius: 8px;
  background: #333;
  color: #fff;
  font-size: 13px;
  opacity: 1;
  transition: opacity .4s;
  box-shadow: 0 4px 12px rgba(0,0,0,.2);
}
.toast.ok { background: var(--success); }
.toast.err { background: var(--danger); }

/* ===================== TABS / SECTIONS ===================== */
.section { display: none; }
.section.active { display: block; }

/* ===================== EMPTY STATE ===================== */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-2); }
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 16px; }
  .dialog-panel { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}

/* ===================== LOGIN SCREEN ===================== */
.login-screen {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #b71c1c 0%, #e53935 50%, #ef9a9a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.login-box {
  background: #fff;
  border-radius: 16px;
  padding: 40px 36px;
  width: 360px;
  max-width: 95vw;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
  text-align: center;
}
.login-logo { font-size: 48px; margin-bottom: 8px; line-height: 1; }
.login-title { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.login-sub { font-size: 13px; color: var(--text-2); margin-bottom: 28px; }
.login-form { text-align: left; }
.login-field { margin-bottom: 16px; }
.login-field label { display: block; font-size: 12px; font-weight: 600; color: var(--text-2); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .5px; }
.login-field input {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color .2s;
}
.login-field input:focus { border-color: var(--primary); }
.login-btn { width: 100%; padding: 12px; font-size: 14px; border-radius: 8px; margin-top: 4px; }
.login-error {
  background: #ffebee;
  color: var(--danger);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 12px;
  border: 1px solid #ffcdd2;
}

/* ===================== BOT INSTRUCTIONS ===================== */
.instr-textarea {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 13px;
  font-family: 'Menlo', 'Consolas', monospace;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color .2s;
  color: var(--text);
  background: #fafafa;
}
.instr-textarea:focus { border-color: var(--primary); background: #fff; }
.instr-divider { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* ===================== INTERVALS ===================== */
.intervals-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 4px;
}
.interval-card {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}
.interval-icon {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}
.interval-card label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: .3px;
  margin-bottom: 10px;
}
.interval-card input[type=number] {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  color: var(--text);
  outline: none;
  transition: border-color .2s;
}
.interval-card input[type=number]:focus { border-color: var(--primary); }
.interval-card .hint { font-size: 11px; color: var(--text-2); margin-top: 6px; }
@media (max-width: 480px) { .intervals-row { grid-template-columns: 1fr; } }