*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cyan:    #00f5ff;
  --magenta: #ff00ff;
  --dark:    #040d14;
  --card-bg: rgba(4, 18, 30, 0.75);
  --border:  rgba(0, 245, 255, 0.35);
  --text:    #c8f0ff;
  --muted:   rgba(0, 245, 255, 0.45);
  --error:   #ff4d6d;
}

/* ── Background ── */
body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--dark);
  font-family: 'Share Tech Mono', monospace;
  color: var(--text);
  overflow: hidden;
  position: relative;
}

/* Scanline overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.18) 2px,
    rgba(0, 0, 0, 0.18) 4px
  );
  pointer-events: none;
  z-index: 10;
}

/* Animated orbs */
canvas#bg {
  position: fixed;
  inset: 0;
  z-index: 0;
}

/* ── Card ── */
.card {
  position: relative;
  z-index: 1;
  width: min(420px, 92vw);
  padding: 48px 40px 40px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow:
    0 0 30px rgba(0, 245, 255, 0.08),
    0 0 80px rgba(0, 245, 255, 0.04),
    inset 0 0 30px rgba(0, 245, 255, 0.03);
  overflow: hidden;
}

/* Corner accents */
.card::before,
.card::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--cyan);
  border-style: solid;
}
.card::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.card::after  { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }

/* ── Header ── */
.header { text-align: center; margin-bottom: 36px; }

.header .logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 11px;
  letter-spacing: 6px;
  color: var(--muted);
  margin-bottom: 10px;
  text-transform: uppercase;
}

.header h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 3px;
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(0, 245, 255, 0.6), 0 0 40px rgba(0, 245, 255, 0.3);
}

.divider {
  margin: 14px auto 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

/* ── Form ── */
.field { position: relative; margin-bottom: 28px; }

.field label {
  display: block;
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--muted);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  background: rgba(0, 245, 255, 0.04);
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 10px 36px 10px 0;
  font-family: 'Share Tech Mono', monospace;
  font-size: 15px;
  color: var(--text);
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
  caret-color: var(--cyan);
}

.field input::placeholder { color: rgba(0, 245, 255, 0.2); }

.field input:focus {
  border-bottom-color: var(--cyan);
  box-shadow: 0 2px 0 -1px rgba(0, 245, 255, 0.35);
}

/* Password toggle */
.toggle-pw {
  position: absolute;
  right: 0;
  bottom: 10px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  color: var(--muted);
  transition: color 0.2s;
  line-height: 1;
}
.toggle-pw:hover { color: var(--cyan); }
.toggle-pw svg { width: 18px; height: 18px; display: block; }
.icon-hide { display: none; }

/* Inline error */
.error-msg {
  display: none;
  margin-top: 6px;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--error);
  text-shadow: 0 0 8px rgba(255, 77, 109, 0.5);
}
.field.has-error input { border-bottom-color: var(--error); }
.field.has-error .error-msg { display: block; }

/* ── Buttons ── */
.buttons { display: flex; flex-direction: column; gap: 14px; margin-top: 36px; }

.btn {
  width: 100%;
  padding: 13px;
  font-family: 'Orbitron', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.25s, background 0.25s;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.08) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.4s;
}
.btn:hover::after { transform: translateX(100%); }

.btn-primary {
  background: var(--cyan);
  color: #020c12;
  border: 1px solid var(--cyan);
  box-shadow: 0 0 18px rgba(0, 245, 255, 0.35), inset 0 0 12px rgba(0, 245, 255, 0.1);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 32px rgba(0, 245, 255, 0.65), 0 6px 20px rgba(0, 245, 255, 0.25);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 1px solid rgba(0, 245, 255, 0.5);
  box-shadow: 0 0 10px rgba(0, 245, 255, 0.1);
}
.btn-outline:hover {
  transform: translateY(-2px);
  border-color: var(--magenta);
  color: var(--magenta);
  box-shadow: 0 0 24px rgba(255, 0, 255, 0.35), 0 6px 16px rgba(255, 0, 255, 0.15);
}
.btn-outline:active { transform: translateY(0); }

/* ── Form slider ── */
.forms-slider {
  position: relative;
  overflow: hidden;
}

#loginForm,
#registerForm {
  width: 100%;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.45s;
}

#loginForm {
  transform: translateX(0);
  opacity: 1;
}

#registerForm {
  position: absolute;
  top: 0;
  left: 0;
  transform: translateX(100%);
  opacity: 0;
  pointer-events: none;
}

.show-register #loginForm {
  position: absolute;
  top: 0;
  left: 0;
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
}

.show-register #registerForm {
  position: relative;
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

/* Date input matches field input theme */
.field input[type="date"] {
  color-scheme: dark;
  padding-right: 0;
}

/* ── Footer text ── */
.card-footer {
  text-align: center;
  margin-top: 28px;
  font-size: 10px;
  letter-spacing: 2px;
  color: rgba(0, 245, 255, 0.2);
}

/* ── API status message (login / register) ── */
.api-msg {
  margin-top: 14px;
  min-height: 16px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  letter-spacing: 1px;
  text-align: center;
}
.api-msg.is-error { color: #ff4d6d; text-shadow: 0 0 8px rgba(255, 77, 109, 0.4); }
.api-msg.is-ok    { color: #00f5ff; text-shadow: 0 0 8px rgba(0, 245, 255, 0.4); }