/* ═══════════════════════════════════════════════════════
   TAGYBASQA — Duolingo Dark Game Design System
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=DM+Mono:wght@400;500&display=swap');

/* ══ ПЕРЕМЕННЫЕ — ТЁМНАЯ ТЕМА (default) ══════════════════ */
:root {
  --bg:   #131f24;
  --bg2:  #1a2d35;
  --bg3:  #1f3540;
  --bg4:  #243d4a;

  --border:  rgba(255,255,255,.07);
  --border2: rgba(255,255,255,.12);
  --border3: rgba(255,255,255,.22);

  --text:  #ffffff;
  --text2: #cdd8dd;
  --text3: #7a9aaa;
  --text4: #131f24;

  --accent:     #ffffff;
  --accent-dim: rgba(255,255,255,.05);

  /* Duolingo цвета */
  --duo-blue:   #1cb0f6;
  --duo-blue2:  #0e86c0;
  --duo-green:  #57cc02;
  --duo-green2: #3a8c01;
  --duo-orange: #ff9600;
  --duo-red:    #ff4b4b;
  --duo-purple: #ce82ff;
  --duo-yellow: #ffd900;
  --duo-teal:   #1fe0c0;

  --red:    #ff4b4b;
  --green:  #57cc02;
  --gold:   #ffd900;
  --red-bg: rgba(255,75,75,.12);

  --r:  12px;
  --r2: 16px;
  --r3: 99px;
  --font: 'Nunito', sans-serif;
  --mono: 'DM Mono', monospace;

  --bg-blur:       rgba(19,31,36,.94);
  --mobile-nav-bg: rgba(19,31,36,.97);
}



/* ══ СБРОС ════════════════════════════════════════════════ */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0 }
html { scroll-behavior:smooth }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background .3s, color .3s;
}

/* ══ ПРЕЛОАДЕР ════════════════════════════════════════════ */
#global-preloader {
  position:fixed; inset:0; background:var(--bg); z-index:9999;
  display:flex; align-items:center; justify-content:center;
  flex-direction:column; gap:20px;
  transition: opacity .5s, visibility .5s;
}
#global-preloader.hidden { opacity:0; visibility:hidden; pointer-events:none }
.preloader-logo {
  font-size:52px; font-weight:900; color:var(--duo-blue);
  letter-spacing:-2px; animation:duo-float 1.5s ease-in-out infinite;
}
.preloader-wordmark {
  font-family:var(--mono); font-size:11px; color:var(--text3);
  letter-spacing:.2em; text-transform:uppercase;
}
.preloader-line { width:52px; height:4px; background:var(--bg3); border-radius:99px; overflow:hidden }
.preloader-line::after {
  content:''; display:block; height:100%;
  background:var(--duo-blue); border-radius:99px;
  animation:slide-line .9s ease infinite;
}
@keyframes slide-line { 0%{transform:translateX(-100%)} 100%{transform:translateX(200%)} }
@keyframes duo-float  { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }

/* ══ LAYOUT ═══════════════════════════════════════════════ */
.app-container {
  display:grid;
  grid-template-columns: 240px 1fr 292px;
  min-height:100vh;
}

/* ══ ЛЕВАЯ ПАНЕЛЬ ═════════════════════════════════════════ */
.sidebar-left {
  position:sticky; top:0; height:100vh;
  padding: 24px 12px;
  display:flex; flex-direction:column;
  border-right:1px solid var(--border);
  background: var(--bg);
  overflow-y:auto;
}
.sidebar-left::-webkit-scrollbar { display:none }

.sidebar-logo {
  display:block; text-decoration:none;
  margin-bottom:28px; padding:4px 10px;
}
.logo-mark {
  font-size:22px; font-weight:900; color:var(--duo-blue);
  letter-spacing:-1px; line-height:1;
}
.logo-sub {
  font-family:var(--mono); font-size:9px; color:var(--text3);
  letter-spacing:.15em; text-transform:uppercase; margin-top:3px;
}

.nav-links { display:flex; flex-direction:column; gap:3px }
.nav-sep   { height:1px; background:var(--border); margin:10px 0 }

.nav-item {
  display:flex; align-items:center; gap:12px;
  padding: 12px 12px;
  border-radius: var(--r);
  border: 2px solid transparent;
  background: transparent;
  color: var(--text3);
  font-family: var(--font);
  font-size: 14px; font-weight: 800;
  cursor:pointer; transition:all .15s;
  text-align:left; width:100%;
  text-decoration:none;
}
.nav-item svg {
  width:20px; height:20px; flex-shrink:0;
  opacity:.45; transition:opacity .2s, filter .2s, transform .2s;
  filter: drop-shadow(0 0 0 transparent);
}
.nav-item:hover svg { opacity:.85; transform:scale(1.08) }
.nav-item.active svg {
  opacity:1;
  filter: drop-shadow(0 0 6px rgba(28,176,246,.5));
}
.nav-item:hover { color:var(--text); background:var(--bg3) }
.nav-item:hover svg { opacity:1 }
.nav-item.active {
  color:var(--duo-blue);
  background: rgba(28,176,246,.1);
  border-color: rgba(28,176,246,.25);
}
.nav-item.active svg { opacity:1; color:var(--duo-blue) }
.nav-item.logout { margin-top:auto; color:var(--text3); font-weight:700 }
.nav-item.logout:hover { color:var(--duo-red); background:var(--red-bg); border-color:transparent }

/* ══ ОСНОВНОЙ КОНТЕНТ ═════════════════════════════════════ */
.main-content { border-right:1px solid var(--border); min-height:100vh }

.view-section { display:none; flex-direction:column }
.view-section.active {
  display:flex;
  animation:fadeUpSmooth .45s cubic-bezier(.16,1,.3,1) forwards;
}
@keyframes fadeUpSmooth { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:translateY(0)} }

/* Вкладки */
.tabs-container {
  display:flex; border-bottom:1px solid var(--border);
  position:sticky; top:0;
  background:var(--bg-blur); backdrop-filter:blur(20px);
  z-index:10; padding:0 4px;
}
.tab {
  flex:1; padding:14px 10px; text-align:center;
  font-size:11px; font-weight:800; color:var(--text3);
  cursor:pointer; border-bottom:3px solid transparent;
  transition:all .15s; letter-spacing:.08em; text-transform:uppercase;
  margin-bottom:-1px;
}
.tab:hover { color:var(--text2) }
.tab.active { color:var(--duo-blue); border-bottom-color:var(--duo-blue) }

.inner-view { display:none }
.inner-view.active {
  display:block;
}

.section-heading {
  font-size:11px; font-weight:800; color:var(--text3);
  letter-spacing:.15em; text-transform:uppercase; margin-bottom:20px;
}

/* ══ КАРТОЧКИ КУРСОВ ══════════════════════════════════════ */
.courses-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(255px,1fr));
  gap:14px; padding:20px;
}

.course-card {
  background: var(--bg2);
  border: 2px solid var(--border2);
  border-radius: var(--r2);
  padding:0; cursor:pointer;
  transition: transform .15s, box-shadow .15s, border-color .15s;
  position:relative; overflow:hidden;
  display:flex; flex-direction:column;
}
.course-card:hover {
  transform:translateY(-4px);
  box-shadow: 0 10px 32px rgba(0,0,0,.35);
  border-color:var(--duo-blue);
}
.course-card:hover .course-btn { background:var(--duo-blue); color:#fff; border-color:var(--duo-blue2) }

.course-num {
  font-family:var(--mono); font-size:10px; color:var(--text3);
  margin-bottom:10px; display:block;
}
.course-emoji-wrap {
  height:130px; background:var(--bg3);
  display:flex; align-items:center; justify-content:center;
  font-size:48px; overflow:hidden; flex-shrink:0;
  border-radius:var(--r2) var(--r2) 0 0;
}
.course-badge {
  display:inline-block; font-family:var(--mono); font-size:9px;
  font-weight:700; color:var(--duo-blue);
  padding:2px 8px; letter-spacing:.08em; text-transform:uppercase;
  margin-bottom:8px; border-radius:99px;
}
.course-badge.pro { color:var(--duo-yellow); border-color:rgba(255,217,0,.3); background:rgba(255,217,0,.1) }

.course-card > .course-num,
.course-card > .course-badge,
.course-card > .course-title,
.course-card > .course-desc,
.course-card > .course-meta,
.course-card > div { padding-left:16px; padding-right:16px }
.course-card > .course-num { padding-top:14px }

.course-title { font-size:15px; font-weight:800; line-height:1.3; margin-bottom:6px }
.course-desc  { font-size:12px; color:var(--text2); line-height:1.5; margin-bottom:12px }
.course-meta  {
  display:flex; gap:12px;
  font-family:var(--mono); font-size:10px; color:var(--text3); margin-bottom:12px;
}

.course-progress-wrap { height:5px; background:var(--bg3); overflow:hidden; margin-bottom:6px; border-radius:99px }
.course-progress-bar  { height:100%; border-radius:99px; transition:width .4s ease }

.course-footer {
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 16px; margin-top:auto;
  border-top:1px solid var(--border);
}
.course-author { display:flex; align-items:center; gap:8px; cursor:pointer }
.author-avatar {
  width:26px; height:26px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:11px; font-weight:800; border:2px solid var(--border2);
}
.author-name { font-size:11px; font-weight:700; color:var(--text2) }

.course-btn {
  background:transparent; color:var(--duo-blue);
  border:2px solid var(--duo-blue);
  padding:7px 16px; border-radius:var(--r3);
  font-family:var(--font); font-size:12px; font-weight:800;
  cursor:pointer; transition:all .15s; letter-spacing:.02em;
}

/* ══ КНОПКИ (глобальные) ══════════════════════════════════ */
.duo-btn {
  background:var(--duo-blue); color:#fff;
  border:none; border-bottom:4px solid var(--duo-blue2);
  padding:12px 28px; border-radius:var(--r3);
  font-family:var(--font); font-size:14px; font-weight:800;
  cursor:pointer; transition:filter .15s, transform .1s;
  letter-spacing:.02em; display:inline-block;
}
.duo-btn:hover  { filter:brightness(1.1) }
.duo-btn:active { transform:translateY(3px); border-bottom-width:1px }

.duo-btn-ghost {
  background:transparent; color:var(--text3);
  border:2px solid var(--border2);
  padding:11px 24px; border-radius:var(--r3);
  font-family:var(--font); font-size:14px; font-weight:800;
  cursor:pointer; transition:all .15s;
}
.duo-btn-ghost:hover { border-color:var(--border3); color:var(--text) }

/* ══ ЛЕНТА ПОСТОВ ═════════════════════════════════════════ */
.create-post-container {
  border-bottom:1px solid var(--border); padding:20px;
}
.create-post-top { display:flex; align-items:flex-start; gap:14px; margin-bottom:14px }
.create-post-avatar {
  width:38px; height:38px; border-radius:50%;
  background:var(--bg3); border:2px solid var(--border2);
  display:flex; align-items:center; justify-content:center;
  font-size:15px; flex-shrink:0; font-weight:800;
}
.create-post-input {
  background:var(--bg2); border:2px solid var(--border2);
  border-radius:var(--r); color:var(--text);
  font-family:var(--font); font-size:15px;
  width:100%; outline:none; resize:none;
  line-height:1.6; padding:10px 14px;
  transition:border-color .15s;
}
.create-post-input:focus { border-color:var(--duo-blue) }
.create-post-input::placeholder { color:var(--text3) }
.create-post-bottom { display:flex; align-items:center; justify-content:space-between; padding-left:52px }
.create-post-actions { display:flex; gap:4px }
.action-icon {
  background:transparent; border:none; color:var(--text3);
  cursor:pointer; padding:6px;
  display:flex; align-items:center; justify-content:center;
  transition:color .15s; border-radius:var(--r);
}
.action-icon svg { width:16px; height:16px }
.action-icon:hover { color:var(--duo-blue) }
.char-display { font-family:var(--mono); font-size:11px; color:var(--text3); margin-right:8px }

.publish-btn {
  background:var(--duo-blue); color:#fff;
  border:none; border-bottom:3px solid var(--duo-blue2);
  padding:9px 22px; border-radius:var(--r3);
  font-family:var(--font); font-size:13px; font-weight:800;
  cursor:pointer; transition:filter .15s, transform .1s;
}
.publish-btn:hover   { filter:brightness(1.1) }
.publish-btn:active  { transform:translateY(2px); border-bottom-width:1px }
.publish-btn:disabled { opacity:.3; cursor:not-allowed; filter:none; transform:none }

#imagePreviewContainer { display:none; position:relative; width:max-content; margin-top:8px }
#imagePreview { max-height:180px; border-radius:var(--r); border:1px solid var(--border2) }
#removeImageBtn {
  position:absolute; top:6px; right:6px;
  background:rgba(0,0,0,.7); color:#fff; border:none;
  width:24px; height:24px; cursor:pointer; font-size:12px;
  display:flex; align-items:center; justify-content:center; border-radius:50%;
}
#pollContainer {
  display:none; flex-direction:column; gap:8px;
  border:1px solid var(--border2); border-radius:var(--r);
  padding:14px; margin-top:10px; background:var(--bg2);
}
.poll-option-input {
  background:var(--bg3); border:1.5px solid var(--border2);
  color:var(--text); padding:9px 12px; border-radius:var(--r);
  font-family:var(--font); font-size:13px; outline:none;
  transition:border-color .15s;
}
.poll-option-input:focus { border-color:var(--duo-blue) }
#removePollBtn { background:transparent; border:none; color:var(--duo-red); cursor:pointer; font-size:12px }

.post-item {
  display:flex; gap:12px; padding:16px 20px;
  border-bottom:1px solid var(--border);
  animation:fadeUpSmooth .3s ease;
}
.post-avatar-col { flex-shrink:0; cursor:pointer }
.post-content-col { flex:1; min-width:0 }
.post-header { display:flex; align-items:flex-start; justify-content:space-between; gap:8px; margin-bottom:6px }
.post-author-info   { display:flex; align-items:baseline; gap:6px; flex-wrap:wrap }
.post-author-name   { font-size:14px; font-weight:800; cursor:pointer; transition:color .1s }
.post-author-name:hover { color:var(--duo-blue) }
.post-author-handle { font-family:var(--mono); font-size:11px; color:var(--text3) }
.post-time          { font-family:var(--mono); font-size:11px; color:var(--text3) }
.post-text          { font-size:15px; line-height:1.65; margin-bottom:10px; word-break:break-word }
.post-actions { display:flex; gap:16px; padding-top:4px }
.action-btn {
  display:inline-flex; align-items:center; gap:6px;
  background:transparent; border:none; color:var(--text3);
  font-family:var(--mono); font-size:12px;
  cursor:pointer; padding:4px 0; transition:color .15s;
}
.action-btn:hover { color:var(--text2) }
.like-post-btn:hover { color:var(--duo-red) }
.like-post-btn.liked { color:var(--duo-red) }

/* ══ ПРОФИЛЬ ══════════════════════════════════════════════ */
.profile-banner {
  height:160px; background:var(--bg2);
  position:relative; overflow:hidden;
  border-bottom:1px solid var(--border);
}
.profile-banner::before {
  content:''; position:absolute; inset:0;
  background:
    repeating-linear-gradient(0deg,transparent,transparent 39px,var(--border) 39px,var(--border) 40px),
    repeating-linear-gradient(90deg,transparent,transparent 39px,var(--border) 39px,var(--border) 40px);
  opacity:.3;
}
.banner-edit-icon {
  position:absolute; bottom:12px; right:12px;
  background:var(--bg3); border:1px solid var(--border2);
  width:32px; height:32px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; color:var(--text2); transition:all .15s;
}
.banner-edit-icon:hover { color:var(--text); border-color:var(--border3) }
.banner-edit-icon svg { width:14px; height:14px; fill:currentColor }

.header-content { padding:0 24px 24px; position:relative }
.avatar-container { position:absolute; top:-44px; left:24px }
.main-avatar {
  width:80px; height:80px; border-radius:50%;
  background:var(--bg3); border:4px solid var(--bg);
  box-shadow:0 4px 0 var(--duo-blue2);
  display:flex; align-items:center; justify-content:center;
  font-size:30px; overflow:hidden;
}

.action-buttons { display:flex; justify-content:flex-end; padding-top:14px; margin-bottom:14px; gap:8px }
.edit-profile-btn {
  background:transparent; color:var(--text);
  border:2px solid var(--border2); padding:8px 18px; border-radius:var(--r3);
  font-family:var(--font); font-size:13px; font-weight:800; cursor:pointer; transition:all .15s;
}
.edit-profile-btn:hover { border-color:var(--border3) }
.save-btn {
  background:transparent; color:var(--text);
  border:2px solid var(--border2); padding:8px 18px; border-radius:var(--r3);
  font-family:var(--font); font-size:13px; font-weight:800; cursor:pointer; transition:all .15s;
}
.save-btn:hover { border-color:var(--border3) }

.user-info-text  { margin-top:44px }
.user-name-row   { display:flex; align-items:center; gap:8px; margin-bottom:4px }
.user-name-row h1{ font-size:21px; font-weight:900 }
.handle          { font-family:var(--mono); font-size:11px; color:var(--text3); display:block; margin-bottom:10px }
.stats-row       { display:flex; gap:16px; font-size:13px; color:var(--text3); margin-bottom:8px }
.stats-row strong{ color:var(--text); font-weight:800 }

/* ══ ПРАВАЯ ПАНЕЛЬ ════════════════════════════════════════ */
.right-sidebar {
  position:sticky; top:0; height:100vh;
  padding:20px 14px;
  display:flex; flex-direction:column; gap:14px;
  overflow-y:auto; background:var(--bg);
}
.right-sidebar::-webkit-scrollbar { display:none }

.widget-title {
  font-family:var(--mono); font-size:9px; font-weight:700;
  color:var(--text3); letter-spacing:.15em; text-transform:uppercase;
  margin-bottom:10px;
}

/* Питомец */
.pet-widget {
  background:var(--bg2); border:2px solid var(--border2);
  border-radius:var(--r2); padding:16px; text-align:center;
}
.pet-snake {
  font-size:44px; display:block; margin:4px auto 8px;
  animation:duo-float 3s ease-in-out infinite;
}
.pet-name { font-size:14px; font-weight:800; margin-bottom:3px }
.pet-sub  { font-family:var(--mono); font-size:10px; color:var(--text3) }
.pet-xp-row { display:flex; align-items:center; gap:8px; margin-top:10px }
.pet-xp-track { flex:1; height:6px; background:var(--bg4); border-radius:99px; overflow:hidden }
.pet-xp-fill  { height:100%; background:var(--duo-blue); border-radius:99px; transition:width .6s ease }
.pet-xp-lbl   { font-family:var(--mono); font-size:9px; color:var(--text3) }

/* Стрик — как в Duolingo */
.streak-widget {
  background:var(--bg2); border:2px solid var(--border2);
  border-radius:var(--r2); padding:16px;
}
.streak-row    { display:flex; align-items:center; gap:10px; margin-bottom:14px }
.streak-fire   { font-size:32px }
.streak-num    { font-size:32px; font-weight:900; color:var(--duo-orange) }
.streak-label  { font-family:var(--mono); font-size:9px; color:var(--text3); text-transform:uppercase; letter-spacing:.1em }
.streak-days   { display:flex; gap:4px; justify-content:space-between }
.streak-day    { display:flex; flex-direction:column; align-items:center; gap:4px; flex:1 }
.streak-day-dot{
  width:24px; height:24px; border-radius:6px;
  border:2px solid var(--border2); background:transparent; transition:all .2s;
}
.streak-day.done  .streak-day-dot { background:var(--duo-orange); border-color:var(--duo-orange); box-shadow:0 2px 0 #c27200 }
.streak-day.today .streak-day-dot { border-color:var(--duo-blue); box-shadow:0 0 8px rgba(28,176,246,.5) }
.streak-day-name  { font-family:var(--mono); font-size:8px; color:var(--text3) }

/* Daily Quests */
.quests-widget {
  background:var(--bg2); border:2px solid var(--border2);
  border-radius:var(--r2); padding:14px;
}
.quest-item {
  display:flex; align-items:center; gap:10px;
  padding:8px 0; border-bottom:1px solid var(--border);
}
.quest-item:last-child { border-bottom:none }
.quest-icon {
  width:36px; height:36px; border-radius:50%;
  background:var(--bg3); display:flex; align-items:center; justify-content:center;
  font-size:18px; flex-shrink:0;
}
.quest-info   { flex:1; min-width:0 }
.quest-name   { font-size:12px; font-weight:800; margin-bottom:4px }
.quest-bar    { height:5px; background:var(--bg4); border-radius:99px; overflow:hidden }
.quest-fill   { height:100%; background:var(--duo-blue); border-radius:99px; transition:width .4s ease }
.quest-reward {
  font-family:var(--mono); font-size:10px; font-weight:700;
  color:var(--duo-yellow); flex-shrink:0;
}

/* Следующий урок */
.next-lesson {
  background:var(--bg2); border:2px solid var(--border2);
  border-left:4px solid var(--duo-blue);
  border-radius:var(--r2); padding:14px 14px;
  cursor:pointer; transition:all .2s;
}
.next-lesson:hover { border-left-color:var(--duo-teal); transform:translateY(-2px) }
.next-lesson-label {
  font-family:var(--mono); font-size:9px; color:var(--duo-blue);
  text-transform:uppercase; letter-spacing:.1em; margin-bottom:6px;
}
.next-lesson-title { font-size:13px; font-weight:800; margin-bottom:4px }
.next-lesson-sub   { font-family:var(--mono); font-size:10px; color:var(--text3) }

/* Suggested users */
.suggested-user {
  display:flex; align-items:center; gap:10px;
  padding:8px 0; border-bottom:1px solid var(--border);
}
.suggested-user:last-child { border-bottom:none }
.su-ava {
  width:32px; height:32px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:14px; flex-shrink:0; background:var(--bg3);
  border:2px solid var(--border2); font-weight:800;
}
.su-info   { flex:1; min-width:0 }
.su-name   { font-size:13px; font-weight:800; white-space:nowrap; overflow:hidden; text-overflow:ellipsis }
.su-handle { font-family:var(--mono); font-size:10px; color:var(--text3) }

.follow-btn {
  background:rgba(28,176,246,.15); color:var(--duo-blue);
  border:1.5px solid rgba(28,176,246,.4);
  padding:5px 14px; border-radius:var(--r3);
  font-family:var(--font); font-size:11px; font-weight:800;
  cursor:pointer; transition:all .15s; flex-shrink:0;
}
.follow-btn:hover { background:var(--duo-blue); color:#fff }
.follow-btn.following {
  background:transparent; color:var(--text3);
  border:1.5px solid var(--border2);
}

.tip-card {
  background:var(--bg3); border:1.5px solid rgba(28,176,246,.2);
  border-left:4px solid var(--duo-blue);
  border-radius:var(--r2); padding:14px;
}
.tip-label {
  font-family:var(--mono); font-size:9px; color:var(--duo-blue);
  text-transform:uppercase; letter-spacing:.1em; margin-bottom:8px;
}
.tip-code {
  font-family:var(--mono); font-size:11px; line-height:1.7;
  color:var(--text2); border-radius:8px; padding:8px;
  background:var(--bg); margin-top:6px;
}

.footer-links {
  display:flex; flex-direction:column; gap:6px;
  font-family:var(--mono); font-size:9px; color:var(--text3); margin-top:auto;
}
.footer-links a { color:var(--text3); text-decoration:none; transition:color .15s }
.footer-links a:hover { color:var(--duo-blue) }

/* ══ ПОИСК ════════════════════════════════════════════════ */
.search-input-container {
  display:flex; align-items:center; gap:12px;
  background:var(--bg2); border:2px solid var(--border2);
  border-radius:var(--r2); padding:12px 16px; transition:border-color .15s;
}
.search-input-container:focus-within { border-color:var(--duo-blue) }
.search-input-container svg { flex-shrink:0; opacity:.4 }
.search-input-container input {
  background:transparent; border:none; color:var(--text);
  font-family:var(--font); font-size:15px; width:100%; outline:none;
}
.search-input-container input::placeholder { color:var(--text3) }

.search-results { margin-top:16px; display:flex; flex-direction:column; gap:2px }
.search-result-item {
  display:flex; align-items:center; gap:14px;
  padding:12px; border-radius:var(--r);
  cursor:pointer; transition:all .15s;
  text-decoration:none; color:inherit;
}
.search-result-item:hover { background:var(--bg2) }
.sr-icon {
  width:38px; height:38px; background:var(--bg3);
  border:2px solid var(--border2); border-radius:var(--r);
  display:flex; align-items:center; justify-content:center;
  font-size:16px; flex-shrink:0;
}
.sr-info h4 { font-size:14px; font-weight:800; margin-bottom:2px }
.sr-info p  { font-family:var(--mono); font-size:11px; color:var(--text3) }

/* ══ ДОСТИЖЕНИЯ ═══════════════════════════════════════════ */
.achievements-grid {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(110px,1fr));
  gap:12px; padding:16px;
}
.achievement-card {
  background:var(--bg2); border:2px solid var(--border2);
  border-radius:var(--r2); padding:18px 10px; text-align:center;
  transition:all .2s;
}
.achievement-card:hover {
  border-color:var(--duo-yellow); transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(255,217,0,.15);
}
.ach-icon  { font-size:28px; margin-bottom:8px }
.ach-name  { font-size:11px; font-weight:800; margin-bottom:3px }
.ach-desc  { font-family:var(--mono); font-size:10px; color:var(--text3); line-height:1.4 }
.achievement-card.locked { opacity:.25; filter:grayscale(1) }

/* ══ МОДАЛЫ ═══════════════════════════════════════════════ */
.modal-overlay {
  display:none; position:fixed; inset:0;
  background:rgba(0,0,0,.75); backdrop-filter:blur(12px);
  z-index:1000; align-items:center; justify-content:center; padding:20px;
}
.modal-overlay.active { display:flex; animation:fadeIn .25s ease }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }

.settings-modal-content {
  display:flex; width:100%; max-width:800px;
  height:560px; max-height:92vh;
  background:var(--bg2);
  border:1.5px solid var(--border2);
  border-radius:20px; overflow:hidden; position:relative;
  box-shadow: 0 32px 80px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.04);
  animation:slideUpSmooth .35s cubic-bezier(.16,1,.3,1) both;
}
@keyframes slideUpSmooth { from{opacity:0;transform:translateY(28px) scale(.97)} to{opacity:1;transform:translateY(0) scale(1)} }

/* Кнопка закрытия */
.modal-close-btn {
  position:absolute; top:14px; right:14px; z-index:10;
  width:32px; height:32px; border-radius:50%;
  background:var(--bg3); border:1.5px solid var(--border2);
  color:var(--text3); cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  transition:all .15s;
}
.modal-close-btn svg { width:14px; height:14px; }
.modal-close-btn:hover {
  background:var(--red-bg); color:var(--duo-red);
  border-color:rgba(255,75,75,.35);
  transform:scale(1.08);
}

.settings-sidebar {
  width:210px; border-right:1px solid var(--border);
  padding:24px 12px; flex-shrink:0;
  background:var(--bg3);
}
.settings-title {
  font-size:10px; font-weight:800; color:var(--text3);
  letter-spacing:.12em; text-transform:uppercase;
  margin-bottom:18px; padding:0 10px;
}
.settings-nav   { display:flex; flex-direction:column; gap:3px }
.settings-nav-item,
.settings-tab {
  display:flex; align-items:center; gap:10px;
  padding:10px 12px; border-radius:var(--r);
  font-size:13px; font-weight:700; color:var(--text3);
  cursor:pointer; transition:all .15s; border:2px solid transparent;
  background:transparent; font-family:var(--font); width:100%; text-align:left;
}
.settings-nav-item:hover, .settings-tab:hover { color:var(--text); background:var(--bg4) }
.settings-nav-item.active, .settings-tab.active {
  color:var(--duo-blue); background:rgba(28,176,246,.1); border-color:rgba(28,176,246,.2);
}
.settings-nav-item svg, .settings-tab svg {
  width:17px; height:17px; opacity:.55; flex-shrink:0; transition:opacity .15s, filter .15s;
}
.settings-nav-item.active svg, .settings-tab.active svg {
  opacity:1; filter:drop-shadow(0 0 5px rgba(28,176,246,.4));
}
.settings-tab:hover svg { opacity:.85 }

.settings-body  { flex:1; overflow-y:auto; display:flex; flex-direction:column }
.settings-main  { flex:1; overflow-y:auto; display:flex; flex-direction:column }
.settings-panel { display:none; flex:1; padding:28px; overflow-y:auto }
.settings-panel.active { display:block; animation:fadeUpSmooth .3s cubic-bezier(.16,1,.3,1) }
.settings-panel-inner { padding:28px; flex:1; overflow-y:auto }
.settings-panel-inner h3 { font-size:16px; font-weight:900; margin-bottom:20px }
.panel-header {
  font-size:18px; font-weight:900; margin-bottom:24px;
  padding-bottom:16px; border-bottom:1px solid var(--border);
  letter-spacing:-.3px;
}
.settings-field-col { display:flex; flex-direction:column; gap:6px; margin-bottom:20px }
.field-info { display:flex; flex-direction:column; gap:2px }
.field-info label { font-size:13px; font-weight:800; color:var(--text) }
.field-info span  { font-family:var(--mono); font-size:10px; color:var(--text3) }

.settings-field { margin-bottom:20px }
.settings-label {
  font-family:var(--mono); font-size:11px; font-weight:500; color:var(--text3);
  letter-spacing:.08em; text-transform:uppercase; margin-bottom:8px; display:block;
}
.settings-input {
  width:100%; background:var(--bg3); border:2px solid var(--border2);
  color:var(--text); padding:10px 14px; border-radius:var(--r);
  font-family:var(--font); font-size:14px; font-weight:600;
  outline:none; transition:border-color .15s;
}
.settings-input:focus { border-color:var(--duo-blue) }

.settings-footer {
  padding:14px 28px; border-top:1px solid var(--border);
  display:flex; justify-content:flex-end; gap:10px;
  background:var(--bg3); flex-shrink:0;
}
.settings-cancel-btn {
  background:transparent; color:var(--text2);
  border:2px solid var(--border2); padding:8px 18px; border-radius:var(--r3);
  font-family:var(--font); font-size:13px; font-weight:700; cursor:pointer; transition:all .15s;
}
.settings-cancel-btn:hover { border-color:var(--border3) }
.settings-save-btn {
  background:var(--duo-blue); color:#fff;
  border:none; border-bottom:3px solid var(--duo-blue2);
  padding:9px 22px; border-radius:var(--r3);
  font-family:var(--font); font-size:13px; font-weight:800;
  cursor:pointer; transition:filter .15s;
}
.settings-save-btn:hover   { filter:brightness(1.1) }
.settings-save-btn:disabled { opacity:.3; cursor:not-allowed }

.avatar-preview-wrap { display:flex; align-items:center; gap:16px; margin-bottom:20px }
#editAvatarPreview {
  width:56px; height:56px; border-radius:50%;
  background:var(--bg3); border:2px solid var(--border2);
  display:flex; align-items:center; justify-content:center; font-size:24px; flex-shrink:0;
}
.settings-field-row {
  display:flex; align-items:flex-start; gap:20px; flex-wrap:wrap;
  padding:16px 0; border-bottom:1px solid var(--border);
  margin-bottom:0;
}
.settings-field-row:last-of-type { border-bottom:none }
.field-control { flex:1; min-width:200px }

/* ══ СТАТИСТИКА ═══════════════════════════════════════════ */
.stats-strip {
  display:flex; gap:1px; background:var(--border);
  border-radius:var(--r); overflow:hidden; margin-bottom:20px;
}
.stat-chip        { flex:1; background:var(--bg2); padding:14px 8px; text-align:center }
.stat-chip-num    { display:block; font-size:22px; font-weight:900; line-height:1; margin-bottom:3px; color:var(--duo-blue) }
.stat-chip-label  { display:block; font-family:var(--mono); font-size:9px; color:var(--text3); text-transform:uppercase; letter-spacing:.1em }

/* ══ ПУСТЫЕ СОСТОЯНИЯ ═════════════════════════════════════ */
.empty-state {
  text-align:center; color:var(--text3); padding:48px 24px;
  font-family:var(--mono); font-size:12px;
  border:2px dashed var(--border2); border-radius:var(--r2);
  margin:16px auto; width:90%;
}
.empty-state-rich {
  display:flex; flex-direction:column; align-items:center;
  padding:48px 24px; text-align:center;
  border:2px dashed var(--border2); border-radius:var(--r2);
  margin:8px auto; width:90%;
}
.empty-icon  { font-size:40px; margin-bottom:12px; opacity:.7 }
.empty-title { font-family:var(--mono); font-size:12px; color:var(--text3); margin-bottom:16px; line-height:1.6 }
.empty-sub   { font-family:var(--mono); font-size:11px; color:var(--text3); margin-bottom:16px }
.empty-action-btn {
  background:var(--duo-blue); color:#fff;
  border:none; border-bottom:3px solid var(--duo-blue2);
  padding:10px 24px; border-radius:var(--r3);
  font-family:var(--font); font-size:13px; font-weight:800; cursor:pointer; transition:filter .15s;
}
.empty-action-btn:hover { filter:brightness(1.1) }

/* ══ КВИЗЫ ════════════════════════════════════════════════ */
.quiz-action-bar {
  display:flex; align-items:center; gap:0;
  border-bottom:1px solid var(--border);
  position:sticky; top:0; background:var(--bg-blur);
  backdrop-filter:blur(20px); z-index:10;
  overflow-x:auto; scrollbar-width:none;
}
.quiz-action-bar::-webkit-scrollbar { display:none }
.quiz-action-tab {
  flex-shrink:0; display:flex; align-items:center; gap:7px;
  padding:14px 16px; background:transparent; border:none;
  border-bottom:3px solid transparent; color:var(--text3);
  font-family:var(--font); font-size:12px; font-weight:800;
  cursor:pointer; transition:all .15s; letter-spacing:.06em;
  text-transform:uppercase; margin-bottom:-1px; white-space:nowrap;
}
.quiz-action-tab:hover { color:var(--text2) }
.quiz-action-tab.active { color:var(--duo-blue); border-bottom-color:var(--duo-blue) }
.quiz-action-tab svg { width:14px; height:14px; opacity:.6; flex-shrink:0 }
.quiz-action-tab.active svg { opacity:1 }

.quiz-panel { display:none }
.quiz-panel.active { display:block; animation:fadeUpSmooth .3s cubic-bezier(.16,1,.3,1) }

.quiz-join-wrap { display:flex; flex-direction:column; align-items:center; justify-content:center; padding:64px 24px; gap:8px }
.quiz-join-title { font-size:24px; font-weight:900; letter-spacing:-.5px }
.quiz-join-sub   { font-family:var(--mono); font-size:11px; color:var(--text3); margin-bottom:24px; letter-spacing:.06em; text-transform:uppercase }
.quiz-pin-group  { display:flex; flex-direction:column; gap:8px; width:100%; max-width:280px }
.quiz-pin-input {
  width:100%; background:var(--bg2); border:2px solid var(--border2);
  color:var(--text); font-family:var(--mono); font-size:24px; font-weight:800;
  padding:16px; text-align:center; letter-spacing:6px; border-radius:var(--r);
  outline:none; transition:border-color .15s;
}
.quiz-pin-input:focus { border-color:var(--duo-blue) }
.quiz-pin-btn {
  width:100%; background:var(--duo-blue); color:#fff;
  border:none; border-bottom:3px solid var(--duo-blue2);
  padding:14px; border-radius:var(--r3);
  font-family:var(--font); font-size:14px; font-weight:800; cursor:pointer; transition:filter .15s;
}
.quiz-pin-btn:hover { filter:brightness(1.1) }

/* ══ ПЕРЕКЛЮЧАТЕЛЬ ТЕМЫ ═══════════════════════════════════ */
.theme-switcher {
  display:flex; background:var(--bg3);
  border:2px solid var(--border2); border-radius:var(--r3); padding:4px; width:fit-content;
}
.theme-btn {
  padding:7px 18px; border-radius:var(--r3);
  font-size:12px; font-weight:800; cursor:pointer;
  transition:all .2s; display:flex; align-items:center; gap:6px;
  border:none; background:transparent; color:var(--text3);
}
.theme-btn.active { background:var(--duo-blue); color:#fff; box-shadow:0 2px 8px rgba(28,176,246,.4) }
.theme-btn:hover:not(.active) { background:var(--bg4) }

/* ══ ТОСТ ═════════════════════════════════════════════════ */
#tbq-toast {
  position:fixed; bottom:80px; left:50%;
  transform:translateX(-50%) translateY(20px);
  background:var(--bg2); color:var(--text);
  border:1.5px solid var(--border2);
  padding:10px 24px; border-radius:var(--r3);
  font-family:var(--mono); font-size:12px; font-weight:700;
  z-index:9999; opacity:0;
  transition:opacity .25s, transform .25s;
  pointer-events:none; white-space:nowrap;
  box-shadow:0 8px 24px rgba(0,0,0,.4);
}
#tbq-toast.show { opacity:1; transform:translateX(-50%) translateY(0) }

@keyframes shake { 0%,100%{transform:translateX(0)} 20%,60%{transform:translateX(-6px)} 40%,80%{transform:translateX(6px)} }
.shake { animation:shake .3s ease }

/* ══ МОИ КАРТОЧКИ (курсы/уроки) ══════════════════════════ */
.card-modern {
  background:var(--bg2); border:2px solid var(--border2);
  border-radius:var(--r2); cursor:pointer;
  transition:transform .15s, box-shadow .15s, border-color .15s;
  display:flex; flex-direction:column; overflow:hidden;
}
.card-modern:hover { transform:translateY(-3px); box-shadow:0 10px 28px rgba(0,0,0,.3); border-color:var(--duo-blue) }
.card-body-modern  { padding:20px; flex:1 }
.card-title-modern { font-size:16px; font-weight:800; margin-bottom:8px; line-height:1.3 }
.card-text-modern  { font-size:13px; color:var(--text3); line-height:1.5 }
.card-tag-modern {
  display:inline-block; font-family:var(--mono); font-size:9px; font-weight:700;
  background:rgba(28,176,246,.12); color:var(--duo-blue);
  padding:2px 8px; border-radius:99px;
  text-transform:uppercase; letter-spacing:.08em; margin-bottom:8px;
}
.card-footer-modern { padding:14px 20px; border-top:1px solid var(--border); display:flex; gap:8px }
.btn-primary-modern {
  flex:1; padding:10px; border-radius:var(--r3);
  background:var(--duo-blue); color:#fff;
  border:none; border-bottom:3px solid var(--duo-blue2);
  font-family:var(--font); font-size:13px; font-weight:800;
  cursor:pointer; transition:filter .15s;
}
.btn-primary-modern:hover { filter:brightness(1.1) }
.btn-secondary-modern {
  flex:1; padding:10px; border-radius:var(--r3);
  background:transparent; color:var(--text2);
  border:2px solid var(--border2);
  font-family:var(--font); font-size:13px; font-weight:700;
  cursor:pointer; transition:all .15s;
}
.btn-secondary-modern:hover { border-color:var(--border3); color:var(--text) }

.badge-status {
  font-family:var(--mono); font-size:9px; font-weight:700;
  padding:2px 8px; border-radius:99px; text-transform:uppercase; letter-spacing:.06em;
}
.badge-status.approved { background:rgba(87,204,2,.12);  color:var(--duo-green) }
.badge-status.pending  { background:rgba(255,150,0,.12); color:var(--duo-orange) }
.badge-status.rejected { background:rgba(255,75,75,.12); color:var(--duo-red) }

/* ══ ФИЛЬТРЫ ══════════════════════════════════════════════ */
.filter-pills { display:flex; gap:8px; flex-wrap:wrap; padding:16px 20px; border-bottom:1px solid var(--border) }
.filter-pill {
  background:var(--bg2); border:2px solid var(--border2);
  color:var(--text3); padding:6px 16px; border-radius:var(--r3);
  font-family:var(--font); font-size:12px; font-weight:700;
  cursor:pointer; transition:all .15s;
}
.filter-pill:hover { border-color:var(--border3); color:var(--text2) }
.filter-pill.active { background:var(--duo-blue); color:#fff; border-color:var(--duo-blue); box-shadow:0 2px 12px rgba(28,176,246,.4) }

/* ══ ОПРОСЫ ═══════════════════════════════════════════════ */
.poll-block { display:flex; flex-direction:column; gap:8px; margin:10px 0 }
.poll-option-btn {
  position:relative; overflow:hidden;
  background:var(--bg2); border:2px solid var(--border2);
  color:var(--text); padding:10px 14px; text-align:left;
  cursor:pointer; font-family:var(--font); font-size:13px;
  display:flex; align-items:center; justify-content:space-between;
  gap:8px; transition:border-color .15s; width:100%; border-radius:var(--r);
}
.poll-option-btn:not([disabled]):hover { border-color:var(--duo-blue) }
.poll-option-btn.my-vote { border-color:var(--duo-blue) }
.poll-option-bar  { position:absolute; left:0; top:0; bottom:0; background:rgba(28,176,246,.1); transition:width .5s ease; pointer-events:none }
.poll-option-text { position:relative; z-index:1 }
.poll-option-pct  { font-family:var(--mono); font-size:11px; color:var(--text3); position:relative; z-index:1 }
.poll-footer      { font-family:var(--mono); font-size:10px; color:var(--text3); text-align:right; margin-top:2px }

/* ══ АНИМАЦИИ КАРТОЧЕК ════════════════════════════════════ */
.course-card,.achievement-card,.search-result-item,.suggested-user,.card-modern {
  opacity:0; animation:fadeUpSmooth .5s cubic-bezier(.16,1,.3,1) forwards;
}
.course-card:nth-child(1),.achievement-card:nth-child(1),.card-modern:nth-child(1),.search-result-item:nth-child(1),.suggested-user:nth-child(1){animation-delay:.04s}
.course-card:nth-child(2),.achievement-card:nth-child(2),.card-modern:nth-child(2),.search-result-item:nth-child(2),.suggested-user:nth-child(2){animation-delay:.08s}
.course-card:nth-child(3),.achievement-card:nth-child(3),.card-modern:nth-child(3),.search-result-item:nth-child(3),.suggested-user:nth-child(3){animation-delay:.12s}
.course-card:nth-child(4),.achievement-card:nth-child(4),.card-modern:nth-child(4),.search-result-item:nth-child(4),.suggested-user:nth-child(4){animation-delay:.16s}
.course-card:nth-child(5),.achievement-card:nth-child(5),.card-modern:nth-child(5),.search-result-item:nth-child(5),.suggested-user:nth-child(5){animation-delay:.20s}
.course-card:nth-child(6),.card-modern:nth-child(6){animation-delay:.24s}
.course-card:nth-child(7),.card-modern:nth-child(7){animation-delay:.28s}
.course-card:nth-child(8),.card-modern:nth-child(8){animation-delay:.32s}

/* ══ АДАПТИВ ══════════════════════════════════════════════ */
@media(max-width:1100px) {
  .app-container { grid-template-columns:240px 1fr }
  .right-sidebar { display:none }
}
@media(max-width:768px) {
  body { padding-bottom:68px }
  .app-container { grid-template-columns:1fr; padding:0 }
  .sidebar-left {
    position:fixed; bottom:0; left:0; right:0; top:auto;
    height:68px; flex-direction:row; align-items:center;
    justify-content:space-around; padding:0 8px;
    background:var(--mobile-nav-bg); backdrop-filter:blur(24px);
    border-right:none; border-top:1px solid var(--border); z-index:100;
  }
  .sidebar-logo,.nav-sep { display:none }
  .nav-links { flex-direction:row; width:100%; justify-content:space-around; gap:0 }
  .nav-item {
    flex-direction:column; font-size:9px; padding:8px 4px; gap:3px;
    border:none; width:auto; flex:1; justify-content:center; border-radius:0;
  }
  .nav-item svg { width:20px; height:20px }
  .nav-item.active { color:var(--duo-blue); background:transparent; border:none }
  .nav-item.logout { display:none }
  .main-content { border-right:none }
  .settings-modal-content { flex-direction:column; max-height:100dvh; border-radius:16px 16px 0 0; margin-top:auto; height:auto }
  .settings-sidebar { width:100%; flex-direction:row; padding:10px; overflow-x:auto; border-right:none; border-bottom:1px solid var(--border) }
  .settings-nav { flex-direction:row; gap:4px }
  .settings-title { display:none }
  .field-control { width:100% }
  .settings-field-row { flex-direction:column; align-items:flex-start }
  .courses-grid { grid-template-columns:1fr; padding:12px }
}