@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Syne:wght@600;700&display=swap");

:root {
  color-scheme: light;
  --bg-1: #0c1015;
  --bg-2: #121b24;
  --panel: rgba(17, 24, 32, 0.82);
  --text: #f4f6f9;
  --muted: #a9b3c2;
  --accent: #4dd1ff;
  --accent-strong: #1a9be0;
  --success: #44d189;
  --error: #ff6b6b;
  --blue: #2f81f7;
  --green: #2dbd74;
  --shadow: 0 18px 45px rgba(4, 8, 15, 0.55);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", system-ui, sans-serif;
  background: radial-gradient(circle at top, #1b2a3b, #0b0f14 60%);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 16px;
  overflow-x: hidden;
}

.ambient-bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(77, 209, 255, 0.2), transparent 50%),
    radial-gradient(circle at 80% 0%, rgba(68, 209, 137, 0.18), transparent 45%),
    linear-gradient(135deg, rgba(27, 43, 57, 0.6), rgba(10, 14, 20, 0.9));
  z-index: -2;
}

#bg-particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

.hidden {
  display: none !important;
}

.brand-mark {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-size: 0.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.gate,
.app {
  width: min(960px, 100%);
}

.gate {
  display: flex;
  align-items: center;
  justify-content: center;
}

.gate-card {
  background: var(--panel);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: min(420px, 100%);
  text-align: center;
  backdrop-filter: blur(12px);
}

.gate-card h1 {
  font-family: "Syne", sans-serif;
  font-size: 2rem;
  margin: 12px 0 8px;
}

.gate-card p {
  color: var(--muted);
  margin: 0 0 24px;
}

#password-form {
  display: grid;
  gap: 12px;
}

#password {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 1rem;
}

#password:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(77, 209, 255, 0.3);
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 12px 20px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #05121c;
  box-shadow: 0 12px 24px rgba(77, 209, 255, 0.25);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn.secondary:hover {
  background: rgba(255, 255, 255, 0.18);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.45;
  pointer-events: none;
}

.btn.primary:enabled:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(77, 209, 255, 0.35);
}

.app {
  display: grid;
  gap: 24px;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 0 6px;
}

.hero h2 {
  font-family: "Syne", sans-serif;
  font-size: 2.2rem;
  margin: 10px 0 6px;
}

.hero p {
  color: var(--muted);
  margin: 0;
}

.practice-pill {
  background: rgba(255, 255, 255, 0.08);
  padding: 12px 18px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.practice-pill.success {
  color: #dff7ec;
  border-color: rgba(45, 189, 116, 0.6);
  background: rgba(45, 189, 116, 0.2);
  box-shadow: 0 10px 18px rgba(45, 189, 116, 0.2);
}

.practice-pill.error {
  color: #ffe3e3;
  border-color: rgba(255, 107, 107, 0.7);
  background: rgba(255, 107, 107, 0.18);
  box-shadow: 0 10px 18px rgba(255, 107, 107, 0.2);
}

.panel {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.form-panel label {
  display: block;
  font-weight: 600;
  margin-bottom: 10px;
}

.email-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

#email {
  flex: 1;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 1rem;
}

#email:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(77, 209, 255, 0.3);
}

.help {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.help.example {
  margin-top: 6px;
  font-size: 0.85rem;
  opacity: 0.85;
}

.error {
  color: var(--error);
  margin-top: 10px;
  min-height: 20px;
}

.columns {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.column h3 {
  margin: 0 0 6px;
  font-family: "Syne", sans-serif;
  font-size: 1.4rem;
}

.column p {
  color: var(--muted);
  margin: 0 0 18px;
}

.button-stack {
  display: grid;
  gap: 12px;
}

.column.blue {
  border: 1px solid rgba(47, 129, 247, 0.4);
}

.column.green {
  border: 1px solid rgba(45, 189, 116, 0.4);
}

.column.blue .btn.secondary {
  border-color: rgba(47, 129, 247, 0.4);
}

.column.green .btn.secondary {
  border-color: rgba(45, 189, 116, 0.4);
}

.column.blue .btn.secondary.active {
  background: rgba(47, 129, 247, 0.2);
  color: #dbe9ff;
  box-shadow: 0 10px 20px rgba(47, 129, 247, 0.25);
}

.column.green .btn.secondary.active {
  background: rgba(45, 189, 116, 0.2);
  color: #dff7ec;
  box-shadow: 0 10px 20px rgba(45, 189, 116, 0.25);
}

.loading-badge {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  padding: 12px 20px;
  border-radius: 999px;
  background: rgba(9, 14, 20, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.35);
  z-index: 8;
  text-align: center;
  backdrop-filter: blur(8px);
}

.loading-text {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

@media (max-width: 720px) {
  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .email-row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}