/* ============================================================
   Vetrix News Radar — Login (Command Deck)
   Split layout: VTX Core hero (left) + auth card (right).
   ============================================================ */

:root {
  color-scheme: dark;
  --bg-0: #03080e;
  --bg-1: #071421;
  --bg-2: #0a1c2c;
  --ink: #e9f4f7;
  --ink-dim: #b3c6d0;
  --muted: #6f8a99;
  --line: rgba(64, 214, 235, 0.16);
  --line-strong: rgba(64, 214, 235, 0.34);
  --surface: rgba(9, 23, 37, 0.72);
  --cyan: #16c4d6;
  --cyan-bright: #6eeaf0;
  --cyan-deep: #0a8e9b;
  --navy: #071421;
  --cream: #f3e7c8;
  --red: #f0605f;
  --shadow: 0 30px 80px -34px rgba(0, 0, 0, 0.9);
  --glow: 0 0 30px -6px rgba(22, 196, 214, 0.5);

  --font-display: "Chakra Petch", system-ui, sans-serif;
  --font-ui: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  background:
    radial-gradient(900px 520px at 78% 8%, rgba(22, 196, 214, 0.14), transparent 60%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 45%, var(--bg-0));
  color: var(--ink);
  font-family: var(--font-ui);
  margin: 0;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

button {
  background: linear-gradient(180deg, var(--cyan), var(--cyan-deep));
  border: 0;
  border-radius: 10px;
  color: #042027;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.4px;
  min-height: 46px;
  padding: 0 18px;
  transition: transform 0.12s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

button:hover {
  box-shadow: var(--glow);
  filter: brightness(1.08);
  transform: translateY(-1px);
}

button:disabled {
  cursor: wait;
  filter: none;
  opacity: 0.55;
  transform: none;
}

input {
  background: rgba(4, 14, 23, 0.62);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  min-height: 46px;
  padding: 12px 14px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  width: 100%;
}

input::placeholder {
  color: var(--muted);
}

input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(22, 196, 214, 0.18);
  outline: none;
}

label {
  color: var(--ink-dim);
  display: grid;
  font-size: 11px;
  font-weight: 600;
  gap: 8px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

/* ---------- shell ---------- */

.login-shell {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  min-height: 100vh;
}

/* ---------- hero (VTX Core) ---------- */

.login-hero {
  background:
    linear-gradient(115deg, rgba(3, 8, 14, 0.05) 30%, rgba(7, 20, 33, 0.96) 86%),
    linear-gradient(0deg, rgba(7, 20, 33, 0.55), rgba(7, 20, 33, 0.1)),
    url('assets/vetrix-news/robot-background-market.png') center top / cover no-repeat,
    var(--navy);
  border-right: 1px solid var(--line-strong);
  overflow: hidden;
  position: relative;
}

/* radar sweep — subtle life over the command center */
.hero-scan {
  background: conic-gradient(from 0deg at 70% 38%, transparent 0deg, rgba(22, 196, 214, 0.14) 24deg, transparent 60deg);
  inset: 0;
  mix-blend-mode: screen;
  position: absolute;
  animation: sweep 9s linear infinite;
}

.hero-overlay {
  bottom: 0;
  left: 0;
  padding: clamp(28px, 4vw, 56px);
  position: absolute;
  right: 0;
}

.hero-kicker {
  color: var(--cyan-bright);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.hero-title {
  color: #fff;
  font-family: var(--font-display);
  font-size: clamp(34px, 4.6vw, 58px);
  font-weight: 700;
  letter-spacing: 0.5px;
  line-height: 0.98;
  margin-bottom: 16px;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
}

.hero-title span {
  background: linear-gradient(90deg, var(--cyan-bright), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.55;
  max-width: 30ch;
}

/* ---------- auth panel ---------- */

.login-panel {
  align-content: center;
  display: grid;
  gap: 26px;
  justify-items: center;
  padding: 40px clamp(20px, 5vw, 64px);
  position: relative;
}

/* faint circuit grid behind the form */
.login-panel::before {
  background-image:
    linear-gradient(rgba(64, 214, 235, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 214, 235, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  content: '';
  inset: 0;
  mask-image: radial-gradient(80% 60% at 50% 40%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(80% 60% at 50% 40%, #000, transparent 75%);
  pointer-events: none;
}

.brand-logo {
  display: block;
  filter: drop-shadow(0 0 26px rgba(22, 196, 214, 0.3));
  max-width: 280px;
  position: relative;
  width: min(70%, 280px);
}

.auth-card {
  backdrop-filter: blur(18px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 18px;
  max-width: 420px;
  padding: clamp(28px, 4vw, 40px);
  position: relative;
  width: 100%;
}

.auth-card::before {
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
  content: '';
  height: 1px;
  left: 24px;
  position: absolute;
  right: 24px;
  top: 0;
}

.auth-title {
  margin-bottom: 4px;
}

.auth-title p {
  color: var(--cyan-bright);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.auth-title h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: 0.5px;
  line-height: 1.02;
  margin-bottom: 0;
}

.message {
  color: var(--red);
  font-size: 13px;
  line-height: 1.4;
  margin: 0;
  min-height: 18px;
}

/* ---------- motion ---------- */

@keyframes sweep {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-scan {
    animation: none;
  }
}

/* ---------- responsive ---------- */

@media (max-width: 880px) {
  .login-shell {
    grid-template-columns: 1fr;
  }

  .login-hero {
    border-bottom: 1px solid var(--line-strong);
    border-right: 0;
    max-height: 38vh;
    min-height: 220px;
  }

  .hero-sub {
    display: none;
  }

  .login-panel {
    padding-block: 32px;
  }
}

@media (max-width: 480px) {
  .login-hero {
    max-height: 30vh;
    min-height: 170px;
  }

  .hero-overlay {
    padding: 20px;
  }

  .brand-logo {
    max-width: 220px;
    width: 74%;
  }
}