/* ==========================================================================
   PyDen Track - Login UI (contrast upgrade)
   ========================================================================== */

:root{
  --bg1:#0b1220;
  --bg2:#141a2f;

  --card: rgba(255,255,255,.90);
  --card2: rgba(255,255,255,.82);

  --txt:#0c1222;
  --muted:#5d6476;

  --border: rgba(10, 22, 42, .14);
  --shadow: 0 18px 50px rgba(0,0,0,.25);

  --p1:#007bff;
  --p2:#6610f2;

  --warn:#f59e0b;
  --bad:#ef4444;

  --radius: 18px;

  /* Input contrast */
  --in-bg: rgba(255,255,255,.88);
  --in-bg-focus: rgba(255,255,255,.96);
  --in-border: rgba(10, 22, 42, .18);
  --in-border-focus: rgba(0,123,255,.55);
  --in-text: #0c1222;
  --in-placeholder: rgba(12,18,34,.45);
  --in-ico: rgba(12,18,34,.55);
}

@media (prefers-color-scheme: dark){
  :root{
    --card: rgba(12, 18, 34, .86);
    --card2: rgba(12, 18, 34, .76);

    --txt: #eef2ff;
    --muted:#b7bdd0;

    --border: rgba(255,255,255,.12);

    /* Input contrast (dark) */
    --in-bg: rgba(255,255,255,.07);
    --in-bg-focus: rgba(255,255,255,.10);
    --in-border: rgba(255,255,255,.14);
    --in-border-focus: rgba(99,102,241,.65);
    --in-text: #eef2ff;
    --in-placeholder: rgba(238,242,255,.45);
    --in-ico: rgba(238,242,255,.55);
  }
}

*{ box-sizing:border-box; }
html, body{ height:100%; }

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color: var(--txt);
  background: radial-gradient(1200px 700px at 10% 10%, rgba(0,123,255,.25), transparent 55%),
              radial-gradient(1000px 600px at 85% 20%, rgba(102,16,242,.20), transparent 55%),
              linear-gradient(180deg, var(--bg1), var(--bg2));
  overflow-x:hidden;
}

/* ===== Topbar ===== */
.topbar{
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: min(980px, calc(100% - 28px));
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.70);
  border: 1px solid rgba(255,255,255,.35);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
  z-index: 20;
}
@media (prefers-color-scheme: dark){
  .topbar{
    background: rgba(12,18,34,.60);
    border: 1px solid rgba(255,255,255,.12);
  }
}
.topbar-logo img{ height: 28px; width:auto; display:block; }
.topbar-links a{
  color: var(--txt);
  text-decoration:none;
  font-weight: 700;
  font-size: .95rem;
  padding: 8px 10px;
  border-radius: 999px;
  transition: transform .15s ease, background .15s ease, opacity .15s ease;
  opacity: .86;
}
.topbar-links a:hover{
  transform: translateY(-1px);
  background: rgba(0,0,0,.06);
  opacity:1;
}
@media (prefers-color-scheme: dark){
  .topbar-links a:hover{ background: rgba(255,255,255,.08); }
}
.topbar-links a.is-active{ background: rgba(0,123,255,.14); opacity: 1; }

/* ===== Video BG ===== */
#video-container{ position: fixed; inset: 0; overflow:hidden; z-index:-2; }
#video-container video{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  opacity:0;
  transform: scale(1.03);
  transition: opacity 1s ease;
  filter: saturate(1.05) contrast(1.06);
}
#video-container video.active{ opacity:.72; }
.overlay{
  position:absolute; inset:0;
  background: radial-gradient(700px 400px at 20% 20%, rgba(0,123,255,.25), transparent 60%),
              radial-gradient(800px 500px at 80% 30%, rgba(102,16,242,.22), transparent 60%),
              linear-gradient(120deg, rgba(0,0,0,.55), rgba(0,0,0,.45));
  mix-blend-mode: multiply;
}
.grain{
  position:absolute; inset:-40%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
  opacity:.10;
  transform: rotate(8deg);
  pointer-events:none;
}

/* ===== Layout ===== */
.auth-shell{
  min-height: 100vh;
  display:grid;
  place-items:center;
  padding: 96px 14px 26px;
}
.auth-shell--centered{ grid-template-columns: 1fr; }

.auth-card{
  width: min(520px, 100%);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card), var(--card2));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 22px 22px 18px;
  position: relative;
  overflow:hidden;
  animation: cardIn .55s cubic-bezier(.2,.8,.2,1) both;
}
@keyframes cardIn{
  from{ opacity:0; transform: translateY(18px) scale(.98); }
  to{ opacity:1; transform: translateY(0) scale(1); }
}

.brand{ text-align:center; }
.logo{
  max-width: 280px;
  width: min(280px, 72%);
  height:auto;
  display:inline-block;
  filter: drop-shadow(0 12px 30px rgba(0,0,0,.20));
}
.brand-sub{
  margin: 8px 0 0;
  color: var(--muted);
  font-weight: 700;
  font-size: .98rem;
}

.auth-form{ margin-top: 18px; }

.field{ margin-bottom: 14px; }
.field-hint{ margin-top: 6px; font-size: .85rem; color: var(--muted); font-weight: 650; }
.form-label{ font-weight: 900; }

.caps{ font-size: .85rem; color: var(--warn); font-weight: 900; }

/* ===== Inputs (contrast boost) ===== */
.input-shell{
  position: relative;
  display:flex;
  align-items:center;
  border-radius: 14px;
  background: var(--in-bg);
  border: 1px solid var(--in-border);
  box-shadow: 0 10px 22px rgba(0,0,0,.10);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
}
.input-shell:focus-within{
  transform: translateY(-1px);
  background: var(--in-bg-focus);
  border-color: var(--in-border-focus);
  box-shadow: 0 0 0 4px rgba(0,123,255,.14), 0 14px 26px rgba(0,0,0,.14);
}
@media (prefers-color-scheme: dark){
  .input-shell:focus-within{
    box-shadow: 0 0 0 4px rgba(99,102,241,.18), 0 14px 26px rgba(0,0,0,.28);
  }
}

.input-ico{
  position:absolute;
  left: 12px;
  font-size: 1.05rem;
  color: var(--in-ico);
  opacity: .95;
}

.form-control.form-contrast{
  border: none !important;
  background: transparent !important;
  color: var(--in-text) !important;
  padding: 12px 44px 12px 40px !important;
  border-radius: 14px !important;
  font-weight: 800;
}
.form-control.form-contrast::placeholder{
  color: var(--in-placeholder) !important;
  font-weight: 800;
}
.form-control.form-contrast:focus{
  box-shadow: none !important;
  outline: none !important;
}

/* Eye button */
.icon-btn{
  position:absolute;
  right: 8px;
  width: 38px;
  height: 38px;
  display:grid;
  place-items:center;
  border: none;
  background: rgba(0,0,0,.04);
  border-radius: 12px;
  cursor:pointer;
  color: var(--in-ico);
  transition: background .15s ease, transform .15s ease, color .15s ease;
}
.icon-btn:hover{ background: rgba(0,0,0,.08); transform: translateY(-1px); color: var(--txt); }
@media (prefers-color-scheme: dark){
  .icon-btn{ background: rgba(255,255,255,.06); }
  .icon-btn:hover{ background: rgba(255,255,255,.10); }
}

/* Invalid */
.form-control.is-invalid, .form-control.invalid{
  outline: none;
}
.input-shell.is-invalid{
  border-color: rgba(239,68,68,.70);
  box-shadow: 0 0 0 4px rgba(239,68,68,.14);
}

/* Checkbox */
.checkbox{
  display:flex;
  align-items:center;
  gap: 8px;
  font-weight: 800;
  color: var(--muted);
  user-select:none;
}
.checkbox input{ transform: translateY(1px); }

/* Links */
.link-secondary{
  color: var(--muted);
  font-weight: 900;
  text-decoration: none;
}
.link-secondary:hover{ text-decoration: underline; text-underline-offset: 3px; }

/* Button */
.btn-hero{
  position: relative;
  border: none;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 950;
  letter-spacing: .2px;
  background: linear-gradient(45deg, var(--p1), var(--p2));
  overflow:hidden;
  box-shadow: 0 14px 30px rgba(0,0,0,.18);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.btn-hero:hover{
  transform: translateY(-2px);
  box-shadow: 0 20px 38px rgba(0,0,0,.22);
  filter: saturate(1.05);
}
.btn-hero:active{ transform: translateY(0px) scale(.99); }
.btn-hero:disabled{ opacity:.72; transform:none; box-shadow: none; }

.btn-glow{
  position:absolute;
  inset: -2px;
  background: radial-gradient(220px 80px at var(--x, 20%) var(--y, 20%), rgba(255,255,255,.35), transparent 60%);
  opacity: .55;
  pointer-events:none;
}

/* Divider + store buttons */
.divider{
  display:flex;
  align-items:center;
  gap: 10px;
  margin: 14px 0 10px;
  color: var(--muted);
  font-weight: 950;
  font-size: .9rem;
}
.divider::before, .divider::after{
  content:"";
  height: 1px;
  background: rgba(0,0,0,.12);
  flex:1;
}
@media (prefers-color-scheme: dark){
  .divider::before, .divider::after{ background: rgba(255,255,255,.12); }
}

.stores{ display:flex; gap: 10px; justify-content:space-between; }
.store-btn{
  flex:1;
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 12px 12px;
  border-radius: 14px;
  text-decoration:none;
  font-weight: 950;
  transition: transform .18s ease, filter .18s ease;
  border: 1px solid rgba(0,0,0,.10);
  position: relative;
  overflow:hidden;
}
.store-btn:hover{ transform: translateY(-2px); filter: saturate(1.05); }

.store-btn .badge-ico{
  width: 40px; height: 40px;
  border-radius: 14px;
  display:grid;
  place-items:center;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.16);
}
@media (prefers-color-scheme: light){
  .store-btn .badge-ico{
    background: rgba(255,255,255,.55);
    border: 1px solid rgba(0,0,0,.10);
  }
}
.store-btn .badge-ico i{ font-size: 1.2rem; }
.store-btn .badge-txt{ display:flex; flex-direction:column; line-height: 1.05; gap: 2px; }
.store-btn .badge-txt small{ font-weight: 900; opacity: .92; font-size: .78rem; }
.store-btn .badge-txt strong{ font-weight: 950; font-size: 1rem; }

.store-btn .shine{
  position:absolute;
  top: -40%;
  left: -60%;
  width: 60%;
  height: 180%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.22), transparent);
  transform: rotate(18deg);
  transition: left .6s ease, opacity .6s ease;
  opacity: 0;
}
.store-btn:hover .shine{ left: 120%; opacity: .9; }

.store-btn.apple{
  background: rgba(0,0,0,.92);
  color:#fff;
  border-color: rgba(255,255,255,.12);
}
.store-btn.google{
  color:#fff;
  background: linear-gradient(135deg, #34a853 0%, #4285f4 40%, #fbbc05 70%, #ea4335 100%);
}

/* Fineprint */
.fineprint{
  margin: 14px 0 0;
  color: var(--muted);
  font-size: .84rem;
  text-align:center;
  font-weight: 700;
}

/* Notifications (compat com notify.js) */
#notification-container{
  position: fixed;
  top: 78px;
  left: 50%;
  transform: translateX(-50%);
  width: auto;
  max-width: 92%;
  z-index: 3000;
  pointer-events: none;
}
.notification{
  display:flex;
  align-items:center;
  margin-bottom: .5rem;
  background: rgba(255,255,255,.94);
  border-radius: 14px;
  padding: .8rem 1rem;
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
  font-weight: 800;
  pointer-events: all;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity .25s ease, transform .25s ease;
  border: 1px solid rgba(0,0,0,.08);
}
@media (prefers-color-scheme: dark){
  .notification{
    background: rgba(12,18,34,.92);
    border: 1px solid rgba(255,255,255,.10);
  }
}
.notification-success { border-left: 4px solid #22c55e; }
.notification-error   { border-left: 4px solid #ef4444; }
.notification-info    { border-left: 4px solid #06b6d4; }
.notification-warning { border-left: 4px solid #f59e0b; }
.notification .icon{ font-size: 1.2rem; margin-right: .75rem; }
.notification .message{ flex: 1; }
.notification.show{ opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; }
  #video-container video{ transition: none !important; }
}