/* ==========================================================================
   layout.css — каркас: экраны, шапка, нижнее меню, модальные окна, тост.
   Мобильный вариант; планшет/ПК — в responsive.css
   ========================================================================== */

/* Мягкая цветная подсветка фона */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 40% at 90% 0%, rgba(var(--accent-rgb), .14), transparent 70%),
    radial-gradient(50% 35% at 0% 100%, rgba(77, 163, 255, .10), transparent 70%);
}

/* ---- Экраны ---- */
.view { position: fixed; inset: 0; display: none; overflow-y: auto; -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain; }
.view.on { display: block; }
.page {
  width: 100%; max-width: var(--col-w); margin: 0 auto;
  padding: calc(var(--safe-t) + 14px) 14px calc(var(--tabbar-h) + 34px + var(--safe-b));
}

.page-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.page-head h1 { font-size: 24px; font-weight: 700; letter-spacing: -.01em; flex: 1; }

/* ---- Логотип ---- */
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 20px; letter-spacing: -.02em; }
.brand i {
  width: 30px; height: 30px; border-radius: 10px; flex: none; display: grid; place-items: center;
  background: linear-gradient(160deg, var(--accent), var(--accent-dark));
  box-shadow: 0 8px 18px -8px rgba(var(--accent-rgb), .9);
}
.brand i svg { width: 17px; height: 17px; }
.brand b { color: var(--accent); }

/* ---- Нижнее меню ---- */
.tabbar {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: max(10px, var(--safe-b));
  width: calc(100% - 32px); max-width: 420px; height: var(--tabbar-h);
  z-index: 30; display: flex; padding: 5px; border-radius: 30px;
  transition: transform .25s cubic-bezier(.4, 0, .2, 1);
}
.pill {
  position: absolute; top: 5px; bottom: 5px; left: 5px; width: calc((100% - 10px) / 3);
  border-radius: 999px; pointer-events: none;
  background: linear-gradient(180deg, rgba(var(--accent-rgb), .22), rgba(var(--accent-rgb), .12));
  border: 1px solid rgba(var(--accent-rgb), .85);
  transition: transform .22s cubic-bezier(.22, 1, .36, 1);
}
.tabbar[data-i="1"] .pill { transform: translateX(100%); }
.tabbar[data-i="2"] .pill { transform: translateX(200%); }
.tab {
  flex: 1; position: relative; z-index: 1; display: flex; align-items: center; justify-content: center; gap: 6px;
  border: 0; background: none; font-size: 13px; font-weight: 600; color: var(--dim); min-width: 0;
}
.tab svg { width: 19px; height: 19px; flex: none; }
.tab.on { color: var(--text); font-weight: 700; }
.tab.on svg { color: var(--accent); }

/* ---- Модальное окно (снизу на телефоне) ---- */
.modal-back {
  position: fixed; inset: 0; z-index: 40; background: rgba(0, 0, 0, .5);
  display: flex; align-items: flex-end; justify-content: center;
  opacity: 0; visibility: hidden; transition: opacity .2s, visibility 0s .2s;
}
.modal-back.open { opacity: 1; visibility: visible; transition: opacity .2s; }
.modal {
  width: 100%; max-width: var(--col-w); max-height: 92dvh; overflow-y: auto;
  background: var(--panel); border-top: 1px solid var(--border);
  border-radius: 26px 26px 0 0; padding: 8px 16px calc(18px + var(--safe-b));
  transform: translateY(40px); transition: transform .25s cubic-bezier(.4, 0, .2, 1);
}
.modal-back.open .modal { transform: none; }
.modal .grab-i { width: 42px; height: 5px; border-radius: 99px; background: var(--glass-in-brd); margin: 4px auto 12px; }
.modal h2 { font-size: 18px; font-weight: 700; }
.modal .sub-t { color: var(--dim); font-size: 12.5px; margin-top: 2px; }

/* ---- Экран входа ---- */
.login {
  position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 20px;
  background: var(--bg); overflow-y: auto;
}
.login-card { width: 100%; max-width: 380px; text-align: center; }
.login-card .brand { justify-content: center; font-size: 30px; margin-bottom: 8px; }
.login-card .brand i { width: 44px; height: 44px; border-radius: 14px; }
.login-card .brand i svg { width: 24px; height: 24px; }
.login-card p { color: var(--dim2); line-height: 1.5; margin: 6px 0 22px; }
.login-box { min-height: 48px; display: flex; justify-content: center; align-items: center; }
.login-note { font-size: 11.5px; color: var(--dim); margin-top: 18px; line-height: 1.5; }

/* ---- Тост ---- */
.toast {
  position: fixed; left: 50%; bottom: calc(var(--tabbar-h) + 28px + var(--safe-b));
  transform: translateX(-50%) translateY(12px); z-index: 70;
  padding: 11px 20px; border-radius: 999px; font-weight: 600; font-size: 13px;
  opacity: 0; pointer-events: none; transition: .3s; max-width: calc(100% - 32px); text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%); }