/* ============================================================
   CHAT.CSS v3 — "Sala dos Professores" | paleta quente editorial
   papel · teal profundo · terracota (sem o visual "indigo de IA")
   Usado por index.php, post.php, perfil.php, editar.php e admin.php
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700;9..144,800;9..144,900&family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --teal:    #177a69;   /* primário — verde-teal profundo */
  --teal-2:  #1f8a76;   /* teal mais vivo */
  --teal-3:  #0e5f52;   /* teal profundo (hover/grad) */
  --clay:    #c1662a;   /* terracota — acento quente */
  --clay-2:  #a85622;
  --gold:    #d8a95e;
  --grad:    linear-gradient(120deg,#0e6a5b 0%,#1d826f 52%,#2a917b 100%);
  --grad-warm:linear-gradient(120deg,#c1662a 0%,#d48837 55%,#e09a48 100%);
  --grad-soft: linear-gradient(120deg,rgba(23,138,119,.10),rgba(23,138,119,.08));

  --bg:      #f5f0e6;   /* papel quente */
  --surface: #fffdf8;
  --subtle:  #efe9dc;
  --paper:   #faf6ed;

  --heading: #2b241c;   /* carvão quente */
  --body:    #4d4436;
  --muted:   #8a7e6c;

  --border:   #e5dbca;
  --border-h: #cfc2a8;

  --upvote:   #c56b24;  /* seta de cima — terracota */
  --downvote: #4f6d7a;  /* seta de baixo — aço quente */
  --score-pos:#1f9d62;
  --score-neg:#cd4634;

  --green: #2f9d63;
  --red:   #c2402f;

  --mention-bg: #e7f0ec;
  --mention-color: var(--teal);

  --shadow-sm: 0 1px 2px rgba(60,50,35,.05), 0 1px 6px rgba(60,50,35,.06);
  --shadow:    0 8px 22px -10px rgba(60,50,35,.22);
  --shadow-lg: 0 34px 70px -26px rgba(14,90,75,.5);

  --r: 18px;
  --r-sm: 12px;
}

*{box-sizing:border-box;margin:0;padding:0;font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4{font-family:'Fraunces',Georgia,serif;font-optical-sizing:auto}
a{text-decoration:none}

html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(1000px 520px at 88% -8%, rgba(193,102,42,.09), transparent 58%),
    radial-gradient(820px 460px at -4% 2%, rgba(23,138,119,.10), transparent 55%),
    var(--bg);
  color:var(--body);
  line-height:1.55;
  min-height:100vh;
}

/* Scrollbar */
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#cdc195;border-radius:20px;border:3px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:#b7a97b}

/* ============ CONTAINER ============ */
.chat-container{width:100%;max-width:none;margin:0;padding:0;min-height:100vh;background:var(--bg)}
.chat-container.fullscreen .chat-sidebar{display:none !important}
.chat-container.fullscreen .chat-main{width:100% !important;max-width:none !important}

/* ============ NAVEGAÇÃO ============ */
.top-nav{
  display:flex;align-items:center;gap:12px;
  background:rgba(255,253,248,.92);
  backdrop-filter:blur(14px);
  border:1px solid var(--border);
  border-radius:16px;
  padding:10px 16px;
  box-shadow:var(--shadow);
  position:sticky;top:12px;z-index:900;
  flex-wrap:wrap;
  margin:12px;
  border-radius:14px;
}
.top-brand{display:flex;align-items:center;gap:9px}
.brand-logo{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;font-size:1.05rem;color:#fff;
  box-shadow:0 6px 16px -6px rgba(14,90,76,.6);
}
.brand-name{font-weight:800;font-size:1.02rem;color:var(--heading);letter-spacing:-.01em;font-family:'Fraunces',serif}
.top-nav-links{display:flex;gap:4px;margin-left:6px;flex:1}
.top-nav-links a{
  color:var(--muted);font-weight:600;font-size:.86rem;padding:8px 13px;border-radius:10px;transition:.18s;
}
.top-nav-links a:hover{background:var(--subtle);color:var(--heading)}
.top-nav-links a.active{background:var(--grad-soft);color:var(--teal);font-weight:700}

.top-user{display:flex;align-items:center;gap:10px;background:var(--subtle);padding:5px 12px 5px 6px;border-radius:20px}
.top-user-info{display:flex;flex-direction:column;line-height:1.15}
.top-user-info span{font-weight:700;font-size:.84rem;color:var(--heading)}
.top-actions{display:flex;align-items:center;gap:10px}

.user-avatar-badge{
  width:34px;height:34px;border-radius:50%;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.05rem;
  box-shadow:0 4px 12px -4px rgba(14,90,76,.7);
}

.btn-auth{
  background:var(--grad);color:#fff;border:none;
  padding:10px 20px;border-radius:14px;font-weight:700;font-size:.86rem;cursor:pointer;
  transition:.2s;box-shadow:0 10px 24px -10px rgba(14,90,76,.65);white-space:nowrap;
}
.btn-auth:hover{transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(14,90,76,.7)}
.btn-auth:active{transform:translateY(0)}

/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;
  margin:20px 0 28px;
  border-radius:30px;
  padding:56px 44px;
  background:
    radial-gradient(660px 320px at 85% 8%, rgba(248,205,152,.34), transparent 60%),
    radial-gradient(520px 300px at 6% 100%, rgba(14,122,103,.35), transparent 58%),
    linear-gradient(135deg,#0c5347 0%,#17705f 52%,#b95f26 140%);
  color:#fff;text-align:center;
  box-shadow:0 36px 70px -28px rgba(14,76,64,.6);
}
.hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px, transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.hero-blob{position:absolute;border-radius:50%;filter:blur(3px);opacity:.32}
.hero-blob-1{width:300px;height:300px;background:radial-gradient(circle,rgba(255,226,189,.7),transparent 70%);top:-100px;left:-50px}
.hero-blob-2{width:240px;height:240px;background:radial-gradient(circle,rgba(31,142,118,.8),transparent 70%);bottom:-80px;right:-40px}
.hero-blob-3{width:140px;height:140px;background:radial-gradient(circle,rgba(224,149,74,.75),transparent 70%);top:14px;right:13%}
.hero-content{position:relative;z-index:2}
.hero-tags{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:20px}
.hero-tag{
  background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.26);
  backdrop-filter:blur(6px);padding:6px 14px;border-radius:20px;font-size:.78rem;font-weight:600;letter-spacing:.01em;
}
.hero-title{font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:900;letter-spacing:-.02em;line-height:1.04;margin-bottom:14px;font-family:'Fraunces',serif}
.grad-text{background:linear-gradient(120deg,#fff 10%,#ffe0b5 80%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{max-width:640px;margin:0 auto 26px;font-size:1.05rem;opacity:.94;font-weight:400}
.hero-actions{display:flex;flex-direction:column;align-items:center;gap:18px}
.hero-meta{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;font-size:.82rem;font-weight:600;opacity:.9}
.hero-meta span{background:rgba(255,255,255,.13);padding:7px 14px;border-radius:14px}

.btn-new-post{
  background:#fff;color:var(--teal-3);border:none;
  padding:14px 30px;border-radius:16px;font-weight:800;font-size:1rem;cursor:pointer;
  display:inline-flex;align-items:center;gap:9px;
  box-shadow:0 18px 34px -14px rgba(0,0,0,.4);transition:.22s;
}
.btn-new-post:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 22px 38px -14px rgba(0,0,0,.45)}
.btn-new-post:active{transform:translateY(0) scale(.99)}

/* ============ LAYOUT ============ */
.chat-layout{display:flex;flex-direction:column;gap:16px;padding:12px}
@media(min-width:820px){.chat-layout{display:grid;grid-template-columns:280px 1fr;align-items:start;gap:20px;padding:20px}}

/* Sidebar Toggle Button */
.btn-toggle-sidebar{
  background:var(--subtle);border:1px solid var(--border);border-radius:12px;
  padding:8px 12px;font-size:1.1rem;cursor:pointer;color:var(--body);
  transition:.2s;display:none;align-items:center;justify-content:center;
}
.btn-toggle-sidebar:hover{background:var(--paper)}
@media(min-width:820px){
  .btn-toggle-sidebar{display:flex}
}

/* Sidebar */
.chat-sidebar{display:flex;flex-direction:column;gap:14px;position:sticky;top:76px;transition:all .3s ease;opacity:1;visibility:visible}
.chat-sidebar.collapsed{display:none !important}
.sidebar-box{
  background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:18px;
  box-shadow:var(--shadow-sm);
}
.sidebar-title{font-size:.9rem;font-weight:800;color:var(--heading);margin-bottom:12px;letter-spacing:-.01em;display:flex;align-items:center;gap:6px}
.sidebar-subtitle{font-size:.65rem;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin:12px 0 6px 2px;display:block}
.sidebar-nav{display:flex;flex-direction:row;gap:5px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
@media(min-width:820px){.sidebar-nav{flex-direction:column;gap:4px;overflow-x:visible;padding-bottom:0}}
.sidebar-divider{border:none;border-top:1px solid var(--border);margin:12px 0}

/* Main content full width when sidebar collapsed */
.chat-main{display:flex;flex-direction:column;gap:14px;min-width:0;width:100%}
.chat-main.fullwidth{grid-column:1/-1}

/* ============ MAIN / FEED ============ */
.feed-controls{
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
  background:var(--surface);padding:10px 14px;border-radius:14px;border:1px solid var(--border);box-shadow:var(--shadow-sm);
}
.sort-tabs{display:flex;background:var(--subtle);padding:4px;border-radius:12px;border:1px solid var(--border)}
.sort-tab{
  background:transparent;border:none;padding:9px 18px;border-radius:9px;
  font-size:.85rem;font-weight:600;color:var(--muted);cursor:pointer;transition:all .18s;display:flex;align-items:center;gap:6px;
}
.sort-tab:hover{color:var(--heading)}
.sort-tab.active{background:#fff!important;color:var(--teal)!important;box-shadow:0 3px 10px rgba(60,50,35,.12)}
.search-box{flex:1;min-width:180px;max-width:320px}
.search-input{width:100%;padding:10px 16px;font-size:.87rem;border-radius:12px;background:var(--paper);border:1.5px solid var(--border)}

.form-control{
  width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:12px;
  font-size:.9rem;background:var(--paper);color:var(--heading);transition:.18s;font-family:'Inter',sans-serif;
}
.form-control:focus{outline:none;border-color:var(--teal);background:#fff;box-shadow:0 0 0 4px rgba(23,138,119,.12)}

/* Post Cards */
.posts-feed{display:flex;flex-direction:column;gap:14px}
.post-card{
  background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:16px;display:flex;gap:14px;
  box-shadow:var(--shadow-sm);transition:all .22s;position:relative;
}
.post-card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:var(--border-h)}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.post-card{animation:fadeUp .35s ease both}
@media(min-width:820px){.post-card{padding:20px;gap:18px}}
.post-card.is-desabafo{background:linear-gradient(135deg,#eef7ef,#e9f4eb 60%);border:1.5px solid #c5e2cb}
.post-card.is-desabafo::before{
  content:'';position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:linear-gradient(#3f9d63,#2d7d49);
}
.post-card.is-debate{border-left:3px solid #f59e0b;background:linear-gradient(135deg,#fffbeb,#fef3c7)}
.post-card.is-debate::before{
  content:'';position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:linear-gradient(#f59e0b,#d97706);
}
html[data-theme="dark"] .post-card.is-debate{background:linear-gradient(135deg,#1c1917,#292524);border-color:#78350f}

.reddit-vote-column{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  background:rgba(43,36,28,.04);padding:9px 6px;border-radius:12px;min-width:42px;height:fit-content;
}
.vote-btn{background:none;border:none;font-size:1.15rem;cursor:pointer;color:var(--muted);transition:.15s;padding:4px;border-radius:6px;line-height:1}
.vote-btn:hover{background:rgba(43,36,28,.07);transform:translateY(-1px)}
.vote-btn.upvote.active{color:var(--upvote);transform:scale(1.25)}
.vote-btn.downvote.active{color:var(--downvote);transform:scale(1.25)}
.vote-score{font-weight:800;font-size:.85rem;color:var(--heading)}
.vote-score.positive{color:var(--score-pos)}
.vote-score.negative{color:var(--score-neg)}

.post-main-content{flex:1;min-width:0}
.post-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:7px;font-size:.76rem;color:var(--muted);flex-wrap:wrap;gap:6px}
.author-badge{display:flex;align-items:center;gap:8px}
.avatar-placeholder{
  width:28px;height:28px;border-radius:50%;
  background:var(--grad-soft);border:1px solid rgba(23,138,119,.18);
  display:flex;align-items:center;justify-content:center;font-size:.85rem;flex-shrink:0;
}
.author-name{font-weight:700;color:var(--heading);font-size:.84rem}
.post-title{font-size:1.08rem;font-weight:800;margin-bottom:6px;color:var(--heading);line-height:1.3;word-break:break-word;letter-spacing:-.005em;font-family:'Fraunces',serif}
.post-title-link{color:inherit;text-decoration:none}
.post-title-link:hover{color:var(--clay);text-decoration:underline;text-underline-offset:3px}
.post-content{color:var(--body);font-size:.9rem;margin-bottom:12px;white-space:pre-line;word-break:break-word}

.mention-tag{color:var(--mention-color);font-weight:600;background:var(--mention-bg);padding:1px 6px;border-radius:6px;cursor:pointer}

.post-actions{display:flex;align-items:center;gap:8px;padding-top:10px;border-top:1px solid rgba(43,36,28,.07);flex-wrap:wrap}
.btn-action{
  background:var(--subtle);border:none;color:var(--heading);padding:6px 14px;border-radius:20px;
  font-weight:600;font-size:.78rem;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:.18s;white-space:nowrap;
}
.btn-action:hover{background:var(--paper);transform:translateY(-1px)}
.btn-report{background:none;border:none;color:var(--muted);font-size:.74rem;cursor:pointer;padding:4px 8px;border-radius:6px;margin-left:auto;transition:.15s}
.btn-report:hover{color:var(--red);background:#fae7e3}

/* ============ COMENTÁRIOS — CENTRO DE DIÁLOGO ============ */
.replies-container{
  margin-top:14px;padding:16px 14px 10px;border-radius:16px;
  background:var(--paper);border:1px dashed var(--border);
  display:flex;flex-direction:column;gap:14px;
}
.thread-slot{display:none;margin-top:8px}
.chat-msg{display:flex;gap:10px;position:relative}
.chat-msg + .chat-msg{margin-top:12px}
.chat-msg-avatar{
  flex-shrink:0;width:34px;height:34px;border-radius:50%;
  background:var(--grad-soft);border:1px solid rgba(23,138,119,.2);
  display:flex;align-items:center;justify-content:center;font-size:1rem;
}
.chat-msg-body{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start}
.chat-msg-head{display:flex;align-items:baseline;gap:8px;margin-bottom:3px;font-size:.76rem}
.chat-msg-head strong{color:var(--heading);font-weight:800;font-size:.8rem}
.chat-msg-head .chat-msg-time{color:var(--muted);font-size:.7rem}
.chat-msg-bubble{
  background:var(--surface);border:1px solid var(--border);
  border-top-left-radius:4px;border-radius:14px 14px 14px 4px;
  padding:10px 14px;font-size:.87rem;line-height:1.6;color:var(--body);
  box-shadow:var(--shadow-sm);max-width:92%;word-break:break-word;
}
.chat-msg.anon .chat-msg-bubble{background:#fdf6ec;border-color:#ecd9bd}
.chat-msg.anon .chat-msg-avatar{background:#f4e9d8;border-color:#e0c9a4}
.chat-msg.is-child{margin-left:26px}
.chat-msg.is-child .chat-msg-bubble{border-radius:14px 14px 4px 14px;border-top-left-radius:14px;border-top-right-radius:4px}
.chat-msg.is-child .chat-msg-avatar{width:28px;height:28px;font-size:.85rem}
.btn-reply-to{background:none;border:none;color:var(--teal);font-size:.72rem;font-weight:800;cursor:pointer;padding:3px 8px;border-radius:7px;margin-top:4px;transition:.15s;align-self:flex-start}
.btn-reply-to:hover{background:var(--mention-bg)}

/* Composer — como barra de chat */
.composer{display:flex;flex-direction:column;gap:7px;margin-top:8px}
.composer.is-reply{border-left:3px solid var(--clay);padding-left:10px}
.composer-head{font-size:.76rem;color:var(--clay);font-style:italic;font-weight:700}
.composer-row{display:flex;gap:8px;background:var(--surface);border:1.5px solid var(--border);border-radius:14px;padding:5px;transition:.2s;align-items:center}
.composer-row:focus-within{border-color:var(--teal);box-shadow:0 0 0 4px rgba(23,138,119,.10)}
.composer-input{flex:1;border:none;background:transparent;padding:8px 12px;font-size:.88rem;min-width:0;font-family:'Inter',sans-serif;color:var(--heading);outline:none}
.composer-send{
  background:var(--grad);color:#fff;border:none;padding:9px 18px;border-radius:11px;
  font-weight:700;font-size:.82rem;cursor:pointer;white-space:nowrap;flex-shrink:0;transition:.2s;
}
.composer-send:hover{opacity:.93;transform:translateY(-1px)}
.composer-foot{display:flex;justify-content:flex-end;padding:0 4px}
.reply-anon-check{display:flex;align-items:center;gap:6px;font-size:.75rem;color:var(--muted);font-weight:600}
.anon-check{width:14px;height:14px;accent-color:var(--teal)}

/* ============ AUTOCOMPLETE @ ============ */
.mention-autocomplete{
  position:absolute;background:var(--surface);border:1px solid var(--border);border-radius:14px;
  box-shadow:var(--shadow-lg,0 20px 40px -12px rgba(43,36,28,.2));z-index:500;min-width:220px;
  max-height:190px;overflow-y:auto;display:none;
}
.mention-autocomplete.active{display:block}
.mention-option{padding:9px 13px;cursor:pointer;font-size:.84rem;display:flex;align-items:center;gap:9px;transition:.13s}
.mention-option:hover{background:var(--subtle)}
.mention-option strong{color:var(--heading);font-family:'Inter',sans-serif}
.mention-option span{color:var(--muted);font-size:.75rem}

/* ============ NOTIFICAÇÕES ============ */
.notif-wrapper{position:relative}
.btn-notif-bell{
  background:var(--subtle);border:1px solid var(--border);width:42px;height:42px;border-radius:13px;
  font-size:1.1rem;cursor:pointer;position:relative;transition:.2s;
}
.btn-notif-bell:hover{background:var(--paper)}
.notif-badge{
  position:absolute;top:-5px;right:-5px;background:var(--red);color:#fff;font-size:.62rem;font-weight:800;
  min-width:18px;height:18px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  padding:0 4px;box-shadow:0 2px 6px rgba(194,64,47,.45);
}
.notif-dropdown{
  position:absolute;right:0;top:calc(100% + 10px);width:min(330px, 92vw);max-width:92vw;background:var(--surface);border-radius:18px;
  border:1px solid var(--border);box-shadow:var(--shadow-lg,0 24px 50px -14px rgba(43,36,28,.24));
  overflow:hidden;display:none;z-index:1000;
}
.notif-dropdown.active{display:block;animation:fadeUp .2s ease}
.notif-header{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--border);font-weight:800;color:var(--heading)}
.notif-list{max-height:320px;overflow-y:auto}
.notif-item{display:flex;gap:10px;padding:12px 16px;border-bottom:1px solid #efe7d8;cursor:pointer;transition:.15s;font-size:.84rem}
.notif-item:hover{background:var(--subtle)}
.notif-item.unread{background:#f0f7f3}
.notif-item.unread::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--teal);flex-shrink:0;margin-top:6px}
.notif-icon{flex-shrink:0;font-size:1rem}
.notif-text strong{color:var(--heading);font-family:'Inter',sans-serif}
.notif-time{color:var(--muted);font-size:.7rem;margin-top:2px}
.email-pref-toggle{display:flex;align-items:center;gap:10px;padding:12px 16px;border-top:1px solid var(--border);font-size:.8rem;font-weight:600;color:var(--body)}
.toggle-switch{position:relative;display:inline-block;width:40px;height:22px;flex-shrink:0}
.toggle-switch input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;inset:0;background:#cdc6b4;border-radius:20px;cursor:pointer;transition:.2s}
.toggle-slider::before{content:'';position:absolute;left:3px;top:3px;width:16px;height:16px;background:#fff;border-radius:50%;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle-switch input:checked + .toggle-slider{background:var(--grad)}
.toggle-switch input:checked + .toggle-slider::before{transform:translateX(18px)}

/* Mobile: notification dropdown doesn't overflow */
@media (max-width: 480px) {
  .notif-dropdown {
    right: -80px !important;
    width: min(340px, 100vw - 20px) !important;
  }
}

/* ============ MODAIS ============ */
.modal-overlay{
  position:fixed;inset:0;background:rgba(38,30,20,.55);backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;z-index:1000;padding:16px;
}
.modal-overlay.active{display:flex}
.modal-content{
  background:var(--surface);width:100%;max-width:470px;border-radius:26px;padding:26px;
  box-shadow:var(--shadow-lg,0 40px 80px -20px rgba(38,30,20,.45));border:1px solid var(--border);max-height:92vh;overflow-y:auto;
}
.modal-overlay.active .modal-content{animation:fadeUp .25s ease}
.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.modal-header h2{font-size:1.3rem;font-weight:900;color:var(--heading);letter-spacing:-.01em}
.btn-close{background:var(--subtle);border:none;width:34px;height:34px;border-radius:50%;font-size:1.1rem;cursor:pointer;color:var(--muted);transition:.2s}
.btn-close:hover{background:var(--paper);color:var(--heading);transform:rotate(90deg)}

.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.82rem;font-weight:800;margin-bottom:6px;color:var(--heading)}
.form-group label em{font-style:normal;color:var(--muted);font-weight:600}

.btn-submit{
  width:100%;background:var(--grad);color:#fff;border:none;padding:13px;border-radius:13px;
  font-weight:700;font-size:.94rem;cursor:pointer;margin-top:10px;transition:.2s;box-shadow:0 10px 24px -10px rgba(14,90,76,.6);
}
.btn-submit:hover{opacity:.94;transform:translateY(-1px)}

.btn-google{
  width:100%;display:flex;align-items:center;justify-content:center;background:var(--surface);color:var(--heading);
  border:1.5px solid var(--border);padding:12px;border-radius:13px;font-weight:600;font-size:.9rem;cursor:pointer;
  transition:.2s;box-shadow:var(--shadow-sm);margin-bottom:6px;gap:8px;
}
.btn-google:hover{background:var(--paper);border-color:var(--border-h);transform:translateY(-1px)}
.btn-google:disabled{opacity:.6;cursor:wait}
.auth-divider{display:flex;align-items:center;text-align:center;margin:16px 0;color:var(--muted);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.auth-divider::before,.auth-divider::after{content:'';flex:1;border-bottom:1px solid var(--border)}
.auth-divider span{padding:0 12px}

p a{color:var(--teal);font-weight:700}

.auto-row{display:flex}
/* ============ RANKING / CLASSIFICAÇÃO ============ */
.ranking-list{display:flex;flex-direction:column;gap:4px}
.ranking-empty{color:var(--muted);font-size:.8rem;text-align:center;padding:6px 0}
.ranking-item{display:flex;align-items:center;gap:10px;padding:8px;border-radius:12px;cursor:pointer;transition:.15s}
.ranking-item:hover{background:var(--subtle)}
.ranking-item.is-me{background:var(--grad-soft);outline:1px solid var(--teal)}
.ranking-pos{font-size:1.05rem;font-weight:800;width:22px;text-align:center;color:var(--muted)}
.ranking-avatar{width:32px;height:32px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.95rem;flex-shrink:0;box-shadow:0 3px 10px -3px rgba(14,90,76,.6)}
.ranking-info{display:flex;flex-direction:column;min-width:0;line-height:1.25}
.ranking-info strong{font-size:.82rem;color:var(--heading);font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ranking-info span{font-size:.7rem;color:var(--muted)}
.rank-ver{color:var(--clay)}
.week-hot{font-style:normal;color:var(--clay);font-weight:700}

/* ============ PERFIL ============ */
.profile-back{display:inline-block;color:var(--teal);font-weight:700;font-size:.9rem;margin:24px 4px 4px;text-decoration:none}
.profile-hero{background:var(--surface);border:1px solid var(--border);border-radius:26px;margin-top:14px;padding:32px 24px;text-align:center;box-shadow:var(--shadow)}
.profile-hero h2{color:var(--heading);font-size:1.5rem;font-weight:900}
.profile-stats{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:18px auto 4px;max-width:460px}
.stat-card{flex:1;min-width:80px;background:var(--paper);border:1px solid var(--border);border-radius:14px;padding:12px 8px}
.stat-card strong{display:block;font-size:1.15rem;color:var(--heading);font-family:'Fraunces',serif}
.stat-card span{font-size:.7rem;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.bio-text{color:#4a4336;font-size:.93rem;max-width:520px;margin:12px auto 0;line-height:1.6;white-space:pre-wrap}
.badge-verified{display:inline-block;background:var(--grad-warm,linear-gradient(120deg,#c1662a,#d48837));color:#fff;font-size:.66rem;font-weight:800;padding:3px 8px;border-radius:20px;vertical-align:middle;margin-left:6px}
.badge-grid{display:flex;gap:10px;justify-content:center;margin:18px 0;flex-wrap:wrap}
.badge-pill{
  background:var(--subtle);padding:7px 15px;border-radius:22px;font-size:.82rem;font-weight:700;color:#3c3428;
  display:flex;align-items:center;gap:6px;border:1px solid var(--border);transition:.2s;
}
.badge-pill:hover{border-color:var(--teal);background:#e7f2ee;transform:translateY(-2px)}
.profile-actions{margin-top:18px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* ============ ADMIN (leve) ============ */
.admin-box{max-width:1000px;margin:40px auto;background:var(--surface);padding:26px;border-radius:22px;border:1px solid var(--border);box-shadow:var(--shadow)}
.admin-box table{width:100%;border-collapse:collapse;margin-top:14px;font-size:.87rem}
.admin-box th,.admin-box td{padding:10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
.admin-box th{background:var(--paper);font-weight:700}
.badge-mod{background:#f6e7cf;color:#8a5a15;padding:4px 10px;border-radius:8px;font-weight:700;font-size:.74rem}
.badge-ban{background:#fae3dd;color:#a5321f}
.mono{font-family:monospace}
.btn-tab{padding:8px 14px;border-radius:20px;background:var(--subtle);color:var(--body);font-weight:700;font-size:.83rem;text-decoration:none}
.btn-tab.active{background:var(--grad);color:#fff}
.btn-tab:hover{background:var(--paper)}
h3{color:var(--heading)}
.sub{color:var(--muted);font-size:.82rem;margin-top:4px}
.btn.ok{background:#2f9d63}.btn.warn{background:#d49a3a}.btn.danger{background:#c2402f}.btn.blue{background:#3f7d96}.btn.gray{background:#9b907d}

/* ============ RODAPÉ ============ */
.chat-footer{
  text-align:center;color:var(--muted);font-size:.82rem;margin-top:44px;
  display:flex;flex-direction:column;gap:6px;align-items:center;
}
.chat-footer-links{display:flex;gap:8px;align-items:center;font-weight:700}
.chat-footer-links a{color:var(--teal)}

/* ============ BADGE / CONQUISTA (confete) ============ */
.badge-toast{position:fixed;right:18px;bottom:18px;z-index:12000;display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--clay);border-radius:16px;padding:14px 18px;box-shadow:var(--shadow-lg,0 24px 48px rgba(43,36,28,.22));opacity:0;transform:translateY(20px);transition:.4s;max-width:300px}
.badge-toast.show{opacity:1;transform:translateY(0)}
.badge-toast-icon{font-size:2rem;animation:badgePop .5s ease}
@keyframes badgePop{0%{transform:scale(0) rotate(-20deg)}60%{transform:scale(1.3)}100%{transform:scale(1)}}
.badge-toast strong{color:var(--heading);font-size:.95rem}
.badge-toast span{color:var(--clay);font-weight:800;font-size:.85rem}
.btn-action.saved{color:var(--teal);background:#e6f1ed}

/* ============ RESPONSIVO ============ */
@media(max-width:820px){
  .top-nav-links{order:5;width:100%;justify-content:flex-start;flex-wrap:wrap;padding-top:6px;border-top:1px solid var(--border)}
  .top-nav-links a{font-size:.8rem;padding:6px 10px}
  .hero{padding:40px 22px;border-radius:24px}
  .hero-title{font-size:2.05rem}
  .chat-sidebar{position:static}
}
@media(max-width:480px){
  .chat-container{padding:12px}
  .top-actions .user-avatar-badge{display:none}
  .btn-auth{padding:9px 14px;font-size:.78rem}
  .hero{padding:34px 18px;margin-top:20px}
  .hero-sub{font-size:.94rem}
  .hero-tag{font-size:.72rem}
  .post-card{padding:14px;gap:12px}
  .reddit-vote-column{min-width:38px;padding:7px 4px}
}
/* ============ BOTÕES EXTRAS (gear + add community) ============ */
.btn-gear{
  background:var(--subtle);border:1px solid var(--border);width:42px;height:42px;border-radius:13px;
  font-size:1.1rem;cursor:pointer;transition:.2s;
}
.btn-gear:hover{background:var(--paper);transform:rotate(20deg)}
.btn-add-comm{
  background:var(--teal);color:#fff;border:none;width:20px;height:20px;border-radius:7px;
  font-weight:800;font-size:.8rem;line-height:1;cursor:pointer;margin-left:auto;flex-shrink:0;
}

/* ============ COMUNIDADES (estilo Reddit) ============ */
.communities-list{display:flex;flex-direction:column;gap:6px}
.community-card{
  display:flex;align-items:center;gap:9px;padding:8px 9px;border-radius:12px;cursor:pointer;transition:.15s;
}
.community-card:hover{background:var(--subtle)}
.community-card.is-active{background:var(--grad-soft);outline:1px solid var(--teal)}
.community-icon{font-size:1.4rem;flex-shrink:0;width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:var(--subtle);border-radius:10px}
.community-info{display:flex;flex-direction:column;min-width:0;line-height:1.2}
.community-info strong{font-size:.82rem;color:var(--heading);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.community-info span{font-size:.68rem;color:var(--muted)}
.community-card .comm-join{
  margin-left:auto;background:var(--grad);color:#fff;border:none;border-radius:14px;
  font-weight:700;font-size:.68rem;padding:4px 9px;cursor:pointer;white-space:nowrap;flex-shrink:0;
}
.community-card .comm-join.joined{background:var(--subtle);color:var(--muted)}

/* ============ DRAWER ESQUERDO (mobile) ============ */
.drawer-overlay{position:fixed;inset:0;background:rgba(38,30,20,.5);backdrop-filter:blur(6px);display:none;z-index:2000}
.drawer-overlay.active{display:block;animation:fadeUp .2s}
.left-drawer{
  position:fixed;left:0;top:0;bottom:0;width:min(320px,86vw);background:var(--surface);z-index:2100;
  transform:translateX(-105%);transition:transform .28s cubic-bezier(.2,.8,.2,1);
  display:flex;flex-direction:column;box-shadow:var(--shadow-lg);border-right:1px solid var(--border);
}
.left-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:18px;border-bottom:1px solid var(--border)}
.drawer-head h3{font-size:1.05rem}
.drawer-body{padding:8px 16px 40px;overflow-y:auto;flex:1}
.drawer-body .sidebar-subtitle{margin-top:10px}
.drawer-cats{display:flex;flex-direction:column;gap:5px;overflow:visible}

/* ============ BOTTOM NAV (mobile) ============ */
.bottom-nav{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1500;
  background:rgba(255,253,248,.94);backdrop-filter:blur(14px);border-top:1px solid var(--border);
  padding:6px 6px max(6px,env(safe-area-inset-bottom));
  justify-content:space-around;box-shadow:0 -8px 24px rgba(60,50,35,.14);
}
.bn-item{
  background:none;border:none;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;
  font-size:1.25rem;color:var(--muted);padding:4px 10px;border-radius:12px;transition:.15s;
}
.bn-item span{font-size:.6rem;font-weight:700}
.bn-item:active{background:var(--subtle)}
.bn-item.active-bn{color:var(--teal)}
.bn-add{background:var(--grad);color:#fff;border-radius:16px;font-size:1.35rem;padding:8px 16px;box-shadow:0 8px 20px -8px rgba(14,90,76,.7)}
.bn-add span{color:#fff}

/* ============ SETTINGS ============ */
.settings-group{margin-bottom:8px}
.setting-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 2px;border-bottom:1px solid var(--border)}
.setting-info{display:flex;flex-direction:column;line-height:1.3}
.setting-info strong{font-size:.88rem;color:var(--heading)}
.setting-info span{font-size:.72rem;color:var(--muted)}
.comm-select-label{display:block;margin-top:14px}

/* ============ MODO ESCURO ============ */
html[data-theme="dark"]{
  --teal:#2aa58f; --teal-2:#31b7a0; --teal-3:#1e8f7b;
  --clay:#e08a4e; --clay-2:#cf7736; --gold:#e0b868;
  --bg:#14120e; --surface:#1c1914; --subtle:#26221a; --paper:#181511;
  --heading:#efe8db; --body:#c9bfae; --muted:#8b8172;
  --border:#34302a; --border-h:#4a443a;
  --upvote:#e08a4e; --downvote:#7c97a6; --score-pos:#3fbd80; --score-neg:#f2705c;
  --mention-bg:#16332d; --mention-color:#5fd0b7;
  --shadow-sm:0 2px 8px rgba(0,0,0,.35); --shadow:0 10px 28px -10px rgba(0,0,0,.5); --shadow-lg:0 34px 70px -26px rgba(0,0,0,.6);
}
html[data-theme="dark"] body{background:var(--bg)}
html[data-theme="dark"] .top-nav,html[data-theme="dark"] .bottom-nav{background:rgba(28,26,22,.9)}
html[data-theme="dark"] .sidebar-box,html[data-theme="dark"] .feed-controls,html[data-theme="dark"] .post-card,
html[data-theme="dark"] .modal-content,html[data-theme="dark"] .profile-hero,html[data-theme="dark"] .composer-row,
html[data-theme="dark"] .chat-msg-bubble{background:var(--surface)}
html[data-theme="dark"] .sort-tab.active{background:var(--surface)!important}
html[data-theme="dark"] .posts-feed .post-card{box-shadow:var(--shadow-sm)}
html[data-theme="dark"] .notif-item.unread{background:#21302c}

/* ============ RESPONSIVO (bottom nav + drawer visíveis) ============ */
@media(max-width:760px){
  body{padding-bottom:76px}
  .bottom-nav{display:flex}
  .chat-layout{margin-top:0}
  .chat-sidebar{display:none} /* sidebar desktop escondida; acesso via drawer */
}
@media(min-width:761px){
  .left-drawer,.drawer-overlay{display:none!important}
}
@media(max-width:480px){
  .bn-item span{font-size:.58rem}
}

/* ============ MOBILE PERFORMANCE OPTIMIZATIONS ============ */
/* Reduce animations on mobile for better performance */
@media (max-width: 760px) {
  * {
    animation-duration: 0.15s !important;
    transition-duration: 0.15s !important;
  }
  /* Disable complex shadows on mobile */
  .post-card, .modal-content, .sidebar-box, .feed-controls {
    box-shadow: var(--shadow-sm) !important;
  }
  /* Simplify gradients on low-end devices */
  @media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
  }
}

/* Touch-friendly improvements */
@media (pointer: coarse) {
  .vote-btn, .btn-action, .btn-submit, .btn-auth, .category-chip {
    min-height: 44px;
    min-width: 44px;
  }
  .composer-input {
    font-size: 16px !important; /* Prevents zoom on iOS */
  }
  input, textarea, select {
    font-size: 16px !important;
  }
}

/* ============ CATEGORY CHIPS ============ */
.category-chip {
  background: var(--surface);
  border: 2px solid var(--border);
  padding: 10px 16px;
  border-radius: 14px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--body);
  cursor: pointer;
  white-space: nowrap;
  transition: all .2s ease;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  position: relative;
  overflow: hidden;
}
.category-chip::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--grad);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .25s ease;
}
.category-chip:hover {
  border-color: var(--teal);
  background: var(--grad-soft);
  transform: translateX(4px);
}
.category-chip:hover::before {
  transform: scaleY(1);
}
.category-chip.active {
  background: var(--grad) !important;
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: 0 8px 24px -8px rgba(14,90,76,.6);
}
.category-chip.active::before {
  transform: scaleY(1);
  background: #fff;
  opacity: .3;
}
.category-chip:active {
  transform: translateX(2px) scale(.98);
}
.category-chip.desabafo-chip {
  border-color: #c5e2cb;
  background: #f0f7f1;
  color: #23632f;
}
.category-chip.desabafo-chip:hover {
  border-color: #3f9d63;
  background: #e2f1e4;
}
.category-chip.desabafo-chip.active {
  background: linear-gradient(120deg,#2f7d4a,#3f9d63) !important;
  color: #fff !important;
  box-shadow: 0 8px 24px -8px rgba(47,125,74,.6);
}

/* Desabafo post card */
.post-card.is-desabafo {
  background: linear-gradient(135deg,#eef7ef,#e9f4eb 60%);
  border: 1.5px solid #c5e2cb;
}
.post-card.is-desabafo::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: linear-gradient(#3f9d63,#2d7d49);
}

/* Sort tabs */
.sort-tab.active {
  background: #fff !important;
  color: var(--teal) !important;
  box-shadow: 0 3px 10px rgba(60,50,35,.12);
}

/* Virtual scroll helper for long feeds */
.posts-feed {
  contain: layout style;
}

/* Reduce paint area for notifications */
.notif-dropdown {
  contain: layout style paint;
}

/* Image optimization */
img {
  max-width: 100%;
  height: auto;
  content-visibility: auto;
}

/* Print styles */
@media print {
  .top-nav, .bottom-nav, .left-drawer, .drawer-overlay, .composer, .notif-wrapper,
  .sidebar-box, .feed-controls, .post-actions, .btn-report {
    display: none !important;
  }
  .post-card { break-inside: avoid; box-shadow: none; border: 1px solid #ccc; }
}