/* ============================================================
   VIEW: LOGIN SCREEN — pre-auth, fullscreen
   Depends on: tokens.css, effects.css (dusty ambience)
   Reference: docs/img_reference/01-login-refinement-center.png
   ============================================================ */

.login-screen {
  position: fixed;
  inset: 0;
  /* Vrstvy (od shora dolu):
     1. Scanlines (existing) — overlay nad dots
     2. Dot grid 22px × 22px — match connecting.css density
     3. Base background — dark gradient
  */
  background:
    repeating-linear-gradient(180deg, transparent 0 2px, rgba(0, 0, 0, 0.10) 2px 3px),
    radial-gradient(circle, rgba(255, 255, 255, 0.10) 0px, rgba(255, 255, 255, 0.05) 1px, transparent 2.5px) 0 0 / 22px 22px,
    var(--bg-base);
  z-index: 100;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.login-screen[hidden] { display: none; }

/* Hide .app when login is active (sibling selector via body class) */
body.has-login-active .app { display: none; }

/* --- Main grid (asteroid + intro) --- */
.login-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  padding: clamp(20px, 4vw, 60px) clamp(30px, 6vw, 100px);
  gap: clamp(20px, 4vw, 80px);
  position: relative;       /* nad .fx-stripes (z-index 0) */
  z-index: 2;
}

@media (max-width: 900px) {
  .login-grid {
    grid-template-columns: 1fr;
    padding: 20px;
  }
}

/* --- Asteroid block --- */
.login-asteroid {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 760px;
  justify-self: center;
  width: 100%;
}

#loginCrystalCanvas {
  width: 100%;
  height: 100%;
  display: block;
}


/* Callouts positioned around asteroid */
/* Callout labels — ukotvene na leader-line endpointy v SVG.
   Pozice odpovidaji koordinatum v 600x600 SVG viewBox:
     top       -> 255,98   (255/600 = 42.5% X, 98/600 = 16.3% Y)
     left      -> 92,270   (15.3% X, 45.0% Y)
     right     -> 518,245  (86.3% X, 40.8% Y)
     bl        -> 150,478  (25.0% X, 79.7% Y)
     br        -> 485,470  (80.8% X, 78.3% Y)
*/
.callout {
  position: absolute;
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  color: rgba(255, 224, 196, 0.82);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
  line-height: 1;
}
.callout::before {
  content: '';
  display: inline-block;
  width: 5px; height: 5px;
  margin-right: 8px;
  background: rgba(255, 220, 180, 0.7);
  vertical-align: middle;
}
.callout em {
  display: block;
  font-style: normal;
  font-size: 1.5rem;
  color: var(--text-strong);
  letter-spacing: 0.02em;
  margin-top: 8px;
  font-weight: 600;
}

/* Top (left of endpoint — text roste vpravo) */
.callout-top    { top: 14%;   left: 42.5%; transform: translate(-100%, -50%); padding-right: 8px; }
/* Left (pres endpoint, text vlevo) — lehce posunut doleva + nahoru */
.callout-left   { top: 32%;   left: 10%;   transform: translate(-100%, -50%); padding-right: 8px; }
/* Right (pres endpoint, text vpravo) */
.callout-right  { top: 40.8%; left: 86.3%; transform: translate(0, -50%); padding-left: 8px; }
/* Bottom-left (pod endpointem, text vlevo) */
.callout-bl     { top: 79.7%; left: 25%;   transform: translate(-100%, 0); padding-right: 8px; }
/* Bottom-right (pod endpointem, text vpravo) */
.callout-br     { top: 78.3%; left: 80.8%; transform: translate(0, 0); padding-left: 8px; }

/* --- Intro (right side) --- */
.login-intro {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: clamp(14px, 2.5vw, 32px);
  max-width: 640px;
}

.login-intro-station {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--orange);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  margin: 0;
}

.login-intro-title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(3rem, 9vw, 7rem);
  line-height: 0.92;
  letter-spacing: -0.01em;
  color: var(--text-strong);
  text-transform: uppercase;
  margin: 0;
  position: relative;
}

.login-intro-title .chev {
  color: var(--orange);
  font-weight: 400;
  display: inline-block;
  padding: 0 0.08em;
  opacity: 0.9;
}
.login-intro-title .chev-l { margin-right: 0.1em; }
.login-intro-title .chev-r { margin-left:  0.12em; }

/* LOGIN CTA (button, no border by default — hover reveals) */
.login-cta {
  background: transparent;
  border: none;
  color: var(--text-strong);
  cursor: pointer;
  font-family: var(--f-display);
  padding: 12px 0 0 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  margin-top: clamp(10px, 2vw, 30px);
  transition: color var(--t), transform var(--t);
}
.login-cta-main {
  font-weight: 600;
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1;
}
.login-cta-sub {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-mute);
  letter-spacing: 0.12em;
  text-transform: lowercase;
  opacity: 0.9;
}
.login-cta:hover .login-cta-main { color: var(--orange); transform: translateX(4px); }
.login-cta:hover .login-cta-sub  { color: var(--orange-bright); }

/* --- Footer strip --- */
.login-foot {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  padding: 10px clamp(20px, 4vw, 60px);
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
  border-top: 1px solid var(--line);
  position: relative;
  z-index: 2;              /* nad .fx-stripes */
}

.login-foot-label {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  color: var(--text-dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.login-foot-bars {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 26px;
  flex: 1;
  max-width: 400px;
}
.login-foot-bars span {
  flex: 1;
  height: 40%;
  background: var(--orange);
  opacity: 0.35;
  transform-origin: bottom;
}
.login-foot-bars span:nth-child(3n)  { height: 70%; opacity: 0.55; }
.login-foot-bars span:nth-child(4n)  { height: 90%; opacity: 0.8; background: var(--red-warn); }
.login-foot-bars span:nth-child(5n)  { height: 30%; opacity: 0.4; }
.login-foot-bars span:nth-child(7n)  { height: 65%; }
.login-foot-bars span:nth-child(11n) { height: 100%; background: var(--red-banner); opacity: 0.9; }

.login-foot-hints {
  margin-left: auto;
  display: flex;
  gap: 18px;
  font-family: var(--f-mono);
  font-size: 0.5625rem;
  color: var(--text-dim);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.login-foot-hints b {
  display: inline-block;
  padding: 1px 5px;
  margin-right: 6px;
  background: var(--bg-raised);
  border: 1px solid var(--line-bright);
  color: var(--text-mute);
  font-weight: 600;
  letter-spacing: 0.08em;
}

@media (max-width: 720px) {
  .login-foot-hints { display: none; }
}

/* ============================================================
   LOGIN MODAL — post-LOGIN click dialog (auth method + station)
   ============================================================ */

.login-modal[hidden] { display: none; }
.login-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(2px);
  cursor: pointer;
}

.login-modal-dialog {
  position: relative;
  z-index: 1;
  background: var(--bg-panel);
  border: 1px solid var(--line-orange);
  min-width: 420px;
  max-width: 560px;
  width: 92vw;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.75), 0 0 0 1px rgba(255, 106, 0, 0.12);
  animation: loginModalIn 0.28s cubic-bezier(.4, 0, .2, 1);
}
@keyframes loginModalIn {
  from { opacity: 0; transform: translateY(-12px) scale(0.97); }
  to   { opacity: 1; transform: none; }
}

.login-modal-hd {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--line);
}
.login-modal-kicker {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.14em;
}
.login-modal-hd h2 {
  font-family: var(--f-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0;
}

/* Error modal — red accent na header bar */
.login-modal-dialog--err {
  border-top: 3px solid var(--red-warn);
}
.login-modal-hd--err {
  border-bottom-color: rgba(228, 58, 47, 0.4);
}
.login-modal-hd--err h2 {
  color: var(--red-warn);
}
.login-modal-err-msg {
  font-family: var(--f-mono);
  font-size: 0.875rem;
  color: var(--text-strong);
  line-height: 1.5;
  margin: 0;
}
.login-modal-err-code {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  margin: 8px 0 0;
}
.login-modal-err-code::before { content: '// reason: '; color: var(--text-dim); opacity: 0.6; }

.login-modal-bd {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.login-modal-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: none;
  padding: 0;
  min-width: 0;
}
.login-modal-field legend {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--orange);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0;
  margin-bottom: 2px;
}
.login-modal-field legend::before { content: '// '; color: var(--text-dim); }
.login-modal-optional {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: lowercase;
  margin-left: 6px;
}

/* Radio options (auth method) */
.login-auth-opt {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  cursor: pointer;
  font-family: var(--f-display);
  font-size: 0.8125rem;
  color: var(--text);
  transition: border-color var(--t), background var(--t), color var(--t);
}
.login-auth-opt:hover:not(.is-disabled) {
  border-color: var(--line-bright);
  color: var(--text-strong);
}
.login-auth-opt:has(input:checked):not(.is-disabled) {
  border-color: var(--orange);
  background: var(--orange-ghost);
  color: var(--text-strong);
}
.login-auth-opt.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.login-auth-opt input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  margin: 0;
  border: 1px solid var(--line-bright);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  cursor: inherit;
  background: transparent;
  transition: border-color var(--t);
}
.login-auth-opt input[type="radio"]:checked {
  border-color: var(--orange);
}
.login-auth-opt input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--orange);
}
.login-auth-opt > span:not(.login-badge) { flex: 1; }

.login-badge {
  padding: 2px 6px;
  font-family: var(--f-mono);
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-mute);
  background: var(--bg-raised);
  border: 1px solid var(--line-bright);
}

/* Station select */
.login-station-select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-deep);
  border: 1px solid var(--line-bright);
  color: var(--text-strong);
  padding: 10px 36px 10px 14px;
  font-family: var(--f-mono);
  font-size: 0.8125rem;
  outline: none;
  cursor: pointer;
  transition: border-color var(--t);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23ff6a00' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}
.login-station-select:focus { border-color: var(--orange); }
.login-station-select optgroup {
  background: var(--bg-deep);
  color: var(--orange);
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.login-modal-hint {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  color: var(--text-mute);
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.login-modal-ft {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 20px;
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
}

@media (max-width: 480px) {
  .login-modal-dialog { min-width: 0; }
}