/* ============================================================
   XTENT GROUP — layout Ribeiro
   Header brand grande · 2 colunas: form esquerda / X+slogan direita
   ============================================================ */
:root{
  --xt-01:#101D22; --xt-02:#26393E; --xt-07:#6EA2A8; --xt-08:#8FBFC2; --xt-09:#B9DBDC; --xt-11:#F3FAFA;
  --bg:var(--xt-01); --text:var(--xt-11);
  --text-mute:rgba(185,219,220,.62); --text-dim:rgba(143,191,194,.38);
  --accent:var(--xt-08); --accent-strong:var(--xt-07); --accent-glow:rgba(110,162,168,.35);
  --border:rgba(143,191,194,.12); --border-bright:rgba(143,191,194,.26);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{
  height:100%;background:var(--bg);color:var(--text);
  font-family:'Space Grotesk',-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}
::selection{background:var(--accent);color:var(--xt-01)}

.page{
  min-height:100vh;
  display:flex;flex-direction:column;
  position:relative;
  background:
    radial-gradient(ellipse 50% 40% at 30% 50%, rgba(110,162,168,.05) 0%, transparent 70%),
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(0,0,0,.55) 0%, transparent 60%),
    var(--bg);
}

/* ============= HEADER ============= */
header{
  padding:48px 80px 0;
  opacity:0;animation:fadeUp .8s ease .15s forwards;
}
header img{
  height:48px;width:auto;display:block;
}

/* ============= MAIN: 2 COLUNAS ============= */
main{
  flex:1;
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  gap:80px;
  padding:0 80px 64px;
  max-width:1600px;
  margin:0 auto;
  width:100%;
}

/* ---------- ESQUERDA: card login ---------- */
.login{
  max-width:440px;
  opacity:0;animation:fadeUp .9s ease .3s forwards;
}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 14px 6px 10px;
  border:1px solid var(--border-bright);
  border-radius:100px;
  background:rgba(110,162,168,.06);
  font-family:'Space Grotesk',sans-serif;
  font-size:11px;font-weight:500;
  letter-spacing:.18em;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:28px;
}
.eyebrow .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px var(--accent), 0 0 14px var(--accent-glow);
}

h1{
  font-family:'Space Grotesk',sans-serif;
  font-size:38px;
  font-weight:400;
  line-height:1.12;
  letter-spacing:-.02em;
  color:var(--text);
  margin-bottom:14px;
}
h1 b{
  font-weight:600;
  color:var(--accent);
}

.lede{
  font-family:'Inter',sans-serif;
  font-size:15px;
  line-height:1.55;
  color:var(--text-mute);
  margin-bottom:30px;
}

/* botão Microsoft */
.btn-ms{
  width:100%;padding:0;
  border:1px solid #fff;border-radius:10px;
  background:#fff;color:#1f1f1f;
  font-family:'Segoe UI','Space Grotesk',sans-serif;
  font-size:15px;font-weight:500;letter-spacing:.005em;
  cursor:pointer;display:flex;align-items:stretch;
  overflow:hidden;
  transition:transform .12s, box-shadow .25s, background-color .2s;
  box-shadow:
    0 1px 0 rgba(255,255,255,.5) inset,
    0 8px 24px rgba(0,0,0,.45),
    0 0 0 1px rgba(255,255,255,.08);
}
.btn-ms:hover{
  background:#f3f3f3;
  transform:translateY(-1px);
  box-shadow:
    0 1px 0 rgba(255,255,255,.5) inset,
    0 14px 36px rgba(0,0,0,.55),
    0 0 0 1px rgba(255,255,255,.12),
    0 0 30px var(--accent-glow);
}
.btn-ms:active{transform:translateY(0);background:#ebebeb}
.btn-ms .ms-logo{
  width:50px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  padding:14px;
}
.btn-ms .ms-logo svg{width:21px;height:21px;display:block}
.btn-ms .ms-label{
  flex:1;display:flex;align-items:center;
  padding:15px 18px 15px 4px;
}
.btn-ms .arrow{margin-left:auto;color:#5e5e5e;font-weight:400;transition:transform .2s,color .2s}
.btn-ms:hover .arrow{color:#1f1f1f;transform:translateX(3px)}
.btn-ms.loading{pointer-events:none}
.btn-ms.loading .arrow{display:none}
.btn-ms .spinner{
  display:none;width:16px;height:16px;
  border:2px solid #ccc;border-top-color:#1f1f1f;
  border-radius:50%;animation:spin .7s linear infinite;
  margin-left:auto;
}
.btn-ms.loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

.hint{
  margin-top:14px;
  display:flex;align-items:center;gap:8px;
  font-family:'Inter',sans-serif;
  font-size:12px;
  color:var(--text-dim);
  line-height:1.5;
}
.hint svg{
  width:14px;height:14px;flex-shrink:0;color:var(--text-dim);
}
.hint b{color:var(--text-mute);font-weight:500}

.info{
  margin-top:28px;
  padding:16px 18px;
  background:rgba(110,162,168,.035);
  border:1px solid var(--border);
  border-radius:10px;
  display:flex;gap:14px;align-items:flex-start;
}
.info .ico{
  width:32px;height:32px;flex-shrink:0;
  border-radius:8px;
  background:rgba(110,162,168,.12);
  border:1px solid rgba(110,162,168,.25);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);
}
.info .ico svg{width:16px;height:16px}
.info .txt{
  font-family:'Inter',sans-serif;
  font-size:13px;line-height:1.5;color:var(--text-mute);
}
.info .txt b{
  color:var(--text);font-weight:500;display:block;margin-bottom:2px;
  font-family:'Space Grotesk',sans-serif;font-size:13px;
}

/* ---------- DIREITA: X + separador + slogan ---------- */
.brand-side{
  display:flex;align-items:center;justify-content:center;
  gap:32px;
  opacity:0;animation:fadeUp .9s ease .45s forwards;
}

.brand-side .x-mark{
  width:160px;height:160px;
  background:linear-gradient(135deg, var(--accent-strong) 0%, var(--accent) 60%, var(--xt-09) 100%);
  -webkit-mask:url('xtent_x_alpha.png') center/contain no-repeat;
          mask:url('xtent_x_alpha.png') center/contain no-repeat;
  filter:drop-shadow(0 16px 36px var(--accent-glow));
  flex-shrink:0;
}

.brand-side .divider-v{
  width:1px;
  height:88px;
  background:linear-gradient(180deg, transparent 0%, var(--border-bright) 30%, var(--border-bright) 70%, transparent 100%);
  flex-shrink:0;
}

.slogan{
  position:relative;
  font-family:'Space Grotesk',sans-serif;
  font-weight:400;
  font-size:26px;
  line-height:1.35;
  letter-spacing:.01em;
  color:var(--text);
  padding:0 24px 0 20px;
}
.slogan .q{
  font-family:'Space Grotesk',sans-serif;
  font-weight:400;
  font-size:32px;
  color:var(--accent);
  line-height:0;
  opacity:.9;
}
.slogan .q.open{
  position:absolute;
  top:.55em;left:0;
}
.slogan .q.close{
  margin-left:6px;
  vertical-align:-.05em;
}
.slogan .line{display:block}

/* ============= ANIMAÇÕES ============= */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(8px)}
  to{opacity:1;transform:translateY(0)}
}

/* ============= RESPONSIVE ============= */
@media (max-width:1080px){
  header{padding:32px 40px 0}
  header img{height:36px}
  main{grid-template-columns:1fr;gap:48px;padding:32px 40px 48px}
  .brand-side{justify-content:flex-start}
}
@media (max-width:680px){
  header{padding:24px 24px 0}
  header img{height:28px}
  main{padding:24px 24px 32px;gap:36px}
  h1{font-size:30px}
  .brand-side{flex-direction:column;align-items:flex-start;gap:18px}
  .brand-side .x-mark{width:100px;height:100px}
  .brand-side .divider-v{
    width:60px;height:1px;
    background:linear-gradient(90deg, transparent 0%, var(--border-bright) 30%, var(--border-bright) 70%, transparent 100%);
  }
  .slogan{font-size:22px;padding:0 16px 0 12px}
}