/* ===========================
   LOGIN.CSS (página de login)
   =========================== */

/* -------- Design tokens e resets -------- */
*, *::before, *::after { box-sizing: border-box; }

:root{
  /* Altura do header fixo (deve bater com includes/header.html) */
  --hdr-h: 64px;

  /* Gradients de fundo (dark/light) */
  --bg-grad-dark: radial-gradient(1200px 800px at 10% -10%, #1e3352 0%, transparent 50%),
                  radial-gradient(1000px 900px at 90% 110%, #0a5a87 0%, transparent 50%),
                  linear-gradient(135deg, #0b1220, #0f1b2e 55%, #0b1220);
  --bg-grad-light: radial-gradient(1200px 800px at 10% -10%, #cfe6ff 0%, transparent 50%),
                   radial-gradient(1000px 900px at 90% 110%, #e2f0ff 0%, transparent 50%),
                   linear-gradient(135deg, #eef3f9, #dfe7f3 55%, #eef3f9);

  /* Paleta */
  --accent-dark:#6ec1ff;
  --accent-light:#1677ff;
  --text-dark:#e8eef5;   --muted-dark:#9db0c5;
  --text-light:#1d2633;  --muted-light:#5c6b7a;

  /* iOS vibes */
  --radius-card: 28px;         /* cantos grandes do container */
  --radius-pill: 14px;         /* inputs/botões arredondados */
  --shadow-outer-dark: 0 8px 28px rgba(0,0,0,.35);
  --shadow-outer-light: 0 8px 24px rgba(0,0,0,.12);
  --shadow-inner: inset 0 1px 0 rgba(255,255,255,.06); /* brilho interno */
  --border-dark: 1px solid rgba(255,255,255,.10);      /* hairline */
  --border-light: 1px solid rgba(0,0,0,.06);

  --transition: .25s ease;
}

/* -------- Layout base: header fixo, página centra, footer no rodapé -------- */
html, body { height: 100%; }
body{
  margin:0;
  min-height:100svh;
  display:flex;
  flex-direction:column; /* Header (fixo), Page (flex:1), Footer */
  font: 500 16px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text",
        "Segoe UI", Roboto, Inter, Arial, sans-serif;
  transition: background .35s var(--transition), color .35s var(--transition);
}

/* Temas */
body.dark{ background: var(--bg-grad-dark); color: var(--text-dark); }
body.light{ background: var(--bg-grad-light); color: var(--text-light); }

/* Área entre header e footer: centraliza o card e compensa o header fixo */
.page{
  flex: 1;
  display: grid;
  place-items: center;
  padding: calc(var(--hdr-h) + 24px) 16px 24px; /* top = header + respiro */
}

/* -------- Card iOS (glass) -------- */
.container{
  width: min(460px, 92vw);
  padding: 26px 26px 24px;
  border-radius: var(--radius-card);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  transition: background var(--transition), border-color var(--transition),
              box-shadow var(--transition), color var(--transition);
  overflow: hidden;
  position: relative;
}
body.dark .container{
  background: rgba(20, 26, 35, 0.60);
  border: var(--border-dark);
  box-shadow: var(--shadow-outer-dark), var(--shadow-inner);
}
body.light .container{
  background: rgba(255, 255, 255, 0.58);
  border: var(--border-light);
  box-shadow: var(--shadow-outer-light), var(--shadow-inner);
}
/* brilho de borda sutil */
.container::before{
  content:"";
  position:absolute; inset:0;
  pointer-events:none;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,.18), rgba(255,255,255,0) 40%);
  mix-blend-mode: screen;
  opacity:.7;
}

/* -------- Header interno do card -------- */
.header{
  display:flex; align-items:flex-start; justify-content:space-between; gap:16px;
  margin-bottom:14px;
}
.title{ margin:0; font-size: 22px; font-weight: 700; letter-spacing:.2px; }
.subtitle{ margin:6px 0 0; font-size:13px; color: var(--muted-dark); }
body.light .subtitle{ color: var(--muted-light); }

/* Toggle tema (pill glass) */
.theme-toggle{
  display:inline-flex; align-items:center; gap:10px;
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(8px) saturate(140%);
  -webkit-backdrop-filter: blur(8px) saturate(140%);
  cursor:pointer; border: none;
  color: inherit;
  transition: transform .2s ease, background var(--transition), box-shadow var(--transition);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 1px 0 rgba(0,0,0,.06);
}
.theme-toggle:hover{ transform: translateY(-1px); }
.theme-toggle .icon{ font-size:16px; line-height:1; }
.theme-toggle .label{ font-weight: 600; font-size: 13px; opacity:.9; }

/* -------- Formulário -------- */
form{ display:grid; gap:14px; }
.field{ display:grid; gap:8px; text-align:left; min-width:0; }
label{ font-size:13px; color: var(--muted-dark); font-weight:600; }
body.light label{ color: var(--muted-light); }

/* Input iOS (pill) */
.input{
  width:100%;
  padding: 12px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition),
              background var(--transition), transform .12s ease;
  outline: none;
}
body.dark .input{
  background: rgba(255,255,255, .04);
  color: var(--text-dark);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
}
body.light .input{
  background: rgba(0,0,0, .03);
  color: var(--text-light);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.8);
}
.input::placeholder{ opacity:.6; }

/* Hover/Focus */
.input:hover{
  transform: translateY(-0.5px);
}
body.dark .input:hover{ background: rgba(255,255,255,.06); }
body.light .input:hover{ background: rgba(0,0,0,.04); }

.input:focus{
  border-color: currentColor;
  box-shadow:
    0 0 0 3px rgba(104, 182, 255, .18),
    inset 0 1px 0 rgba(255,255,255,.08);
}
body.dark .input:focus{ border-color: var(--accent-dark); }
body.light .input:focus{ border-color: var(--accent-light); }

/* Ações */
.actions{ display:flex; justify-content:center; margin-top: 2px; }

/* Botão principal (com tap feedback) */
.btn-primary{
  padding: 12px 18px;
  min-width: 140px;
  border-radius: 22px;
  border: none; cursor: pointer;
  font-weight: 700; letter-spacing:.2px;
  transition: transform .18s ease, filter .3s ease, box-shadow .25s ease;
}
body.dark .btn-primary{
  background: linear-gradient(180deg, #78c8ff, #59b8ff);
  color: #07243a;
  box-shadow: 0 6px 14px rgba(110,193,255,.2);
}
body.light .btn-primary{
  background: linear-gradient(180deg, #2a86ff, #1677ff);
  color: #fff;
  box-shadow: 0 6px 14px rgba(22,119,255,.24);
}
.btn-primary:hover{ transform: translateY(-1.5px); filter: brightness(1.03); }
.btn-primary:active{ transform: scale(0.98); }

/* Links de ajuda (estilo iOS link) */
.help{ margin-top:16px; display:grid; gap:8px; text-align:center; }
.link{
  appearance: none; background: transparent; border: none;
  font-size:14px; cursor:pointer; text-decoration: none;
  color: inherit; padding: 6px 10px; border-radius: 10px;
  transition: background var(--transition), transform .15s ease, color var(--transition);
}
body.dark .link{ color: #9fd4ff; }
body.light .link{ color: #1677ff; }
.link:hover{ background: rgba(255,255,255,.08); transform: translateY(-1px); }

/* -------- Modais (fade + scale iOS) -------- */
.modal{
  position:fixed; inset:0; display:none; place-items:center;
  padding:24px; z-index:1000;
}
.modal.open{ display:grid; }

.backdrop{
  position:absolute; inset:0; background:rgba(0,0,0,.45);
  opacity:0; transition: opacity .28s ease;
}
.modal.open .backdrop{ opacity:1; }

.dialog{
  position:relative;
  width:min(520px, 92vw);
  border-radius: 24px;
  padding:20px 20px 18px;
  opacity:0; transform: translateY(6px) scale(.98);
  transition: transform .28s ease, opacity .28s ease,
              background var(--transition), border-color var(--transition),
              box-shadow var(--transition);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid;
  box-shadow: 0 12px 30px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.06);
}
.modal.open .dialog{ opacity:1; transform: translateY(0) scale(1); }

body.dark .dialog{
  background: rgba(20,26,35,.62); color: var(--text-dark);
  border-color: rgba(255,255,255,.10);
}
body.light .dialog{
  background: rgba(255,255,255,.70); color: var(--text-light);
  border-color: rgba(0,0,0,.06);
}

.dialog-header{
  display:flex; justify-content:space-between; align-items:center; margin-bottom:8px;
}
.dialog-title{ margin:0; font-size:17px; font-weight:700; }

.btn-icon{
  border:none; background: rgba(255,255,255,.1);
  width:34px; height:34px; border-radius: 12px; cursor:pointer;
  display:grid; place-items:center; font-size:18px; color: inherit;
  transition: background var(--transition), transform .15s ease;
}
.btn-icon:hover{ background: rgba(255,255,255,.16); transform: translateY(-1px); }

/* -------- Acessibilidade -------- */
:focus-visible{
  outline: 2px solid rgba(104, 182, 255, .75);
  outline-offset: 2px;
  border-radius: 12px;
}