/* =========================================================================
   Тренер по бегу — оформление в стиле дизайн-системы ati.su.
   Токены (--glz-*), радиусы и тени взяты из ati-ui-kit.html. Светлая тема —
   основная; тёмная включается по системной настройке (бесшовность).
   ========================================================================= */

/* ---- Токены: Light (основная) ---- */
:root {
  --glz-color-neutral-tone-0:#ffffff;
  --glz-color-neutral:#f9f9fa;
  --glz-color-neutral-tone-1:#f3f4f4;
  --glz-color-neutral-tone-2:#e6e8ea;
  --glz-color-neutral-tone-3:#b5babf;
  --glz-color-neutral-tone-4:#838b94;
  --glz-color-neutral-tone-5:#071829;

  --glz-color-primary:#2277cc;
  --glz-color-primary-tone-1:#1f6bb8;
  --glz-color-primary-tone-2:#1b5fa3;
  --glz-color-primary-tone-3:#e9f1fa;
  --glz-color-primary-tone-4:#d3e4f5;

  --glz-color-success:#00A400;
  --glz-color-success-tone-1:#009400;
  --glz-color-success-tone-2:#008300;
  --glz-color-success-tone-3:#E6F6E6;
  --glz-color-success-tone-4:#CCEDCC;

  --glz-color-warning:#F0AF0D;
  --glz-color-warning-tone-2:#C08C0A;
  --glz-color-warning-tone-3:#FEF7E7;

  --glz-color-error:#E90C14;
  --glz-color-error-tone-1:#D20B12;
  --glz-color-error-tone-2:#BA0A10;
  --glz-color-error-tone-3:#FEF3F3;

  --on-primary:#ffffff;
  --shadow-color:rgba(7,24,41,0.2);

  /* Скругления */
  --glz-border-radius-xs:4px;
  --glz-border-radius-s:8px;
  --glz-border-radius-m:12px;
  --glz-border-radius-l:16px;
  --glz-border-radius-100xl:1000px;

  /* Тени */
  --shadow-shape:0 1px 2px 0 var(--shadow-color);
  --shadow-elevated:0 8px 24px 0 var(--shadow-color);
}

/* ---- Токены: Dark (по системной теме) ---- */
@media (prefers-color-scheme: dark) {
  :root {
    --glz-color-neutral-tone-0:#212222;
    --glz-color-neutral:#141414;
    --glz-color-neutral-tone-1:#0E0E0E;
    --glz-color-neutral-tone-2:#393B3D;
    --glz-color-neutral-tone-3:#505457;
    --glz-color-neutral-tone-4:#838b94;
    --glz-color-neutral-tone-5:#D6D6D6;

    --glz-color-primary:#7CA2C7;
    --glz-color-primary-tone-1:#4A86C2;
    --glz-color-primary-tone-2:#266BAF;
    --glz-color-primary-tone-3:#213549;
    --glz-color-primary-tone-4:#0A243D;

    --glz-color-success:#6FB76F;
    --glz-color-success-tone-1:#468B46;
    --glz-color-success-tone-2:#006B00;
    --glz-color-success-tone-3:#1E3527;
    --glz-color-success-tone-4:#122D28;

    --glz-color-warning:#C8AA5E;
    --glz-color-warning-tone-2:#E4A70E;
    --glz-color-warning-tone-3:#332D1B;

    --glz-color-error:#B44448;
    --glz-color-error-tone-1:#9F2D31;
    --glz-color-error-tone-2:#A4181D;
    --glz-color-error-tone-3:#491E1E;

    --on-primary:#212222;
    --shadow-color:rgba(0,0,0,0.4);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  background: var(--glz-color-neutral);
  color: var(--glz-color-neutral-tone-5);
  font-family: Verdana, "Dejavu Sans", Geneva, Tahoma, sans-serif;
  font-size: 14px;
  line-height: 20px;
  -webkit-font-smoothing: antialiased;
}

/* Topbar */
.app-header {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: calc(env(safe-area-inset-top) + 14px) 16px 14px;
  background: var(--glz-color-neutral-tone-0);
  border-bottom: 1px solid var(--glz-color-neutral-tone-2);
}
.app-title {
  font-size: 18px;
  line-height: 24px;
  letter-spacing: -0.2px;
  font-weight: 700;
}
.reset-btn {
  font-family: inherit;
  font-size: 11px;
  line-height: 20px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  background: transparent;
  color: var(--glz-color-primary);
  border: 1px solid var(--glz-color-primary);
  border-radius: var(--glz-border-radius-s);
  padding: 8px 16px;
  cursor: pointer;
  transition: background .15s ease;
}
.reset-btn:active { background: var(--glz-color-primary-tone-3); }

/* Вкладки: каждая вью занимает пространство между topbar и tab-bar */
.view {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
body[data-tab="chat"] #view-plan { display: none; }
body[data-tab="plan"] #view-chat { display: none; }

/* Messages */
.messages {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  -webkit-overflow-scrolling: touch;
}

.bubble {
  max-width: 88%;
  padding: 12px 14px;
  border-radius: var(--glz-border-radius-l);
  font-size: 14px;
  line-height: 20px;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}
.bubble.user {
  align-self: flex-end;
  background: var(--glz-color-primary);
  color: var(--on-primary);
  border-bottom-right-radius: var(--glz-border-radius-xs);
}
.bubble.coach {
  align-self: flex-start;
  background: var(--glz-color-neutral-tone-0);
  border: 1px solid var(--glz-color-neutral-tone-2);
  border-bottom-left-radius: var(--glz-border-radius-xs);
  box-shadow: var(--shadow-shape);
}

/* Markdown внутри пузыря */
.bubble p { margin: 0 0 8px; }
.bubble p:last-child { margin-bottom: 0; }
.bubble ul, .bubble ol { margin: 4px 0 8px; padding-left: 20px; }
.bubble li { margin: 2px 0; }
.bubble h1, .bubble h2, .bubble h3 {
  margin: 8px 0 6px;
  font-size: 16px;
  line-height: 24px;
  font-weight: 700;
}
.bubble code {
  background: var(--glz-color-neutral-tone-1);
  padding: 1px 5px;
  border-radius: var(--glz-border-radius-xs);
  font-size: 0.9em;
}
.bubble pre {
  background: var(--glz-color-neutral-tone-1);
  padding: 10px;
  border-radius: var(--glz-border-radius-s);
  overflow-x: auto;
}
.bubble pre code { background: none; padding: 0; }
.bubble a { color: var(--glz-color-primary); }

/* Таблицы — обёртка со скроллом для узкого экрана */
.bubble table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 14px;
  line-height: 20px;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}
.bubble th, .bubble td {
  padding: 10px 12px;
  text-align: left;
}
.bubble thead th {
  background: var(--glz-color-neutral-tone-1);
  color: var(--glz-color-neutral-tone-4);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.4px;
}
.bubble tbody td { border-top: 1px solid var(--glz-color-neutral-tone-2); }

/* Индикатор набора */
.typing { display: inline-flex; gap: 4px; padding: 4px 0; }
.typing span {
  width: 7px; height: 7px; border-radius: var(--glz-border-radius-100xl);
  background: var(--glz-color-neutral-tone-3);
  animation: blink 1.4s infinite both;
}
.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 0%, 80%, 100% { opacity: 0.3; } 40% { opacity: 1; } }

/* Composer */
.composer {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 12px;
  background: var(--glz-color-neutral-tone-0);
  border-top: 1px solid var(--glz-color-neutral-tone-2);
}
.input {
  flex: 1 1 auto;
  resize: none;
  max-height: 140px;
  padding: 10px 12px;
  border-radius: var(--glz-border-radius-s);
  border: 1px solid var(--glz-color-neutral-tone-3);
  background: var(--glz-color-neutral-tone-0);
  color: var(--glz-color-neutral-tone-5);
  font-family: inherit;
  font-size: 14px;
  line-height: 20px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.input::placeholder { color: var(--glz-color-neutral-tone-4); }
.input:focus {
  border-color: var(--glz-color-primary);
  box-shadow: 0 0 0 3px var(--glz-color-primary-tone-4);
}
.input:disabled {
  background: var(--glz-color-neutral-tone-1);
  color: var(--glz-color-neutral-tone-4);
}
.send-btn {
  flex: 0 0 auto;
  width: 40px; height: 40px;
  border: none;
  border-radius: var(--glz-border-radius-100xl);
  background: var(--glz-color-primary);
  color: var(--on-primary);
  font-size: 16px;
  cursor: pointer;
  transition: background .15s ease, transform .1s ease;
}
.send-btn:hover:not(:disabled) { background: var(--glz-color-primary-tone-1); }
.send-btn:disabled { background: var(--glz-color-neutral-tone-2); color: var(--glz-color-neutral-tone-4); cursor: default; }
.send-btn:active:not(:disabled) { transform: scale(0.94); }

/* Tab-bar снизу */
.tab-bar {
  flex: 0 0 auto;
  display: flex;
  background: var(--glz-color-neutral-tone-0);
  border-top: 1px solid var(--glz-color-neutral-tone-2);
  padding-bottom: env(safe-area-inset-bottom);
}
.tab-btn {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 0 6px;
  background: transparent;
  border: none;
  border-top: 2px solid transparent;
  margin-top: -1px;
  color: var(--glz-color-neutral-tone-4);
  font-family: inherit;
  font-size: 18px;
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}
.tab-btn span {
  font-size: 11px;
  letter-spacing: 0.4px;
}
.tab-btn.active {
  color: var(--glz-color-primary);
  border-top-color: var(--glz-color-primary);
}

/* Содержимое вкладки «План» */
.plan-scroll {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 20px 16px;
  -webkit-overflow-scrolling: touch;
}
.plan-heading {
  margin: 0 0 16px;
  font-size: 24px;
  line-height: 30px;
  letter-spacing: -0.3px;
  font-weight: 700;
}
.plan-content .bubble,
.plan-reply .bubble {
  max-width: 100%;
}

/* Пояснение тренера над списком тренировок */
.plan-intro { margin-bottom: 16px; }

/* Список тренировок с чекбоксами (компонент ctrl из ati-ui-kit) */
.plan-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.training {
  background: var(--glz-color-neutral-tone-0);
  border: 1px solid var(--glz-color-neutral-tone-2);
  border-radius: var(--glz-border-radius-m);
  box-shadow: var(--shadow-shape);
  transition: border-color .15s ease, background .15s ease;
}
.training-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  user-select: none;
}
.training-check {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.box {
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1px solid var(--glz-color-neutral-tone-3);
  border-radius: var(--glz-border-radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s ease;
}
.box svg { width: 13px; height: 13px; color: var(--on-primary); opacity: 0; }
.training-check:checked + .box {
  background: var(--glz-color-success);
  border-color: var(--glz-color-success);
}
.training-check:checked + .box svg { opacity: 1; }
.training-check:focus-visible + .box {
  box-shadow: 0 0 0 3px var(--glz-color-primary-tone-4);
}
.training-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.training-title {
  font-weight: 700;
  font-size: 15px;
  line-height: 20px;
}
.training-meta {
  color: var(--glz-color-neutral-tone-4);
  font-size: 13px;
  line-height: 18px;
}
.training-meta b {
  color: var(--glz-color-neutral-tone-5);
  font-weight: 700;
}
.training.done {
  border-color: var(--glz-color-success);
  background: var(--glz-color-success-tone-3);
}
.training.done .training-title {
  text-decoration: line-through;
  color: var(--glz-color-neutral-tone-4);
}

/* Пустое состояние плана */
.plan-content.empty {
  color: var(--glz-color-neutral-tone-4);
  padding: 32px 8px;
  text-align: center;
}
.link-btn {
  margin-top: 16px;
  font-family: inherit;
  font-size: 11px;
  line-height: 20px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  background: transparent;
  color: var(--glz-color-primary);
  border: 1px solid var(--glz-color-primary);
  border-radius: var(--glz-border-radius-s);
  padding: 10px 20px;
  cursor: pointer;
}
.link-btn:active { background: var(--glz-color-primary-tone-3); }

/* Последний ответ тренера на фидбек */
.plan-reply {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--glz-color-neutral-tone-2);
}
.plan-reply-label {
  color: var(--glz-color-neutral-tone-4);
  font-size: 11px;
  line-height: 16px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* Экран ввода кода доступа (гейт публичной раздачи) */
.gate {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--glz-color-neutral);
}
.gate[hidden] { display: none; }
.gate-card {
  width: 100%;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 20px;
  border-radius: var(--glz-border-radius-l);
  background: var(--glz-color-neutral-tone-0);
  box-shadow: var(--shadow-shape);
  text-align: center;
}
.gate-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--glz-color-neutral-tone-5);
}
.gate-text {
  margin: 0;
  font-size: 14px;
  line-height: 20px;
  color: var(--glz-color-neutral-tone-4);
}
.gate-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--glz-border-radius-s);
  border: 1px solid var(--glz-color-neutral-tone-3);
  background: var(--glz-color-neutral-tone-0);
  color: var(--glz-color-neutral-tone-5);
  font-family: inherit;
  font-size: 14px;
  line-height: 20px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.gate-input::placeholder { color: var(--glz-color-neutral-tone-4); }
.gate-input:focus {
  border-color: var(--glz-color-primary);
  box-shadow: 0 0 0 3px var(--glz-color-primary-tone-4);
}
.gate-error {
  font-size: 13px;
  line-height: 18px;
  color: var(--glz-color-error);
}
.gate-error[hidden] { display: none; }
.gate-btn {
  padding: 11px 16px;
  border: none;
  border-radius: var(--glz-border-radius-s);
  background: var(--glz-color-primary);
  color: var(--on-primary);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s ease, transform .1s ease;
}
.gate-btn:hover { background: var(--glz-color-primary-tone-1); }
.gate-btn:active { transform: scale(0.98); }