@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;700&display=swap');

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

:root {
  --bg: #000;
  --bg-1: #0d0d0d;
  --bg-2: #141414;
  --border: #222;
  --border-hi: #555;
  --text: #999;
  --text-dim: #444;
  --white: #f0f0f0;
  --font: 'IBM Plex Mono', monospace;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
  min-height: 100vh;
}

a { color: var(--white); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.5px;
}

.logo:hover { text-decoration: none; opacity: 0.6; }

nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 12px;
}

#nav-user {
  color: var(--text-dim);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 60px 40px;
}

.hero { margin-bottom: 80px; }

.hero h1 {
  font-size: 42px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -1px;
  margin-bottom: 12px;
  line-height: 1.1;
}

.tagline {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 36px;
  letter-spacing: 0.5px;
}

.actions { display: flex; gap: 12px; flex-wrap: wrap; }

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 80px;
}

.feature {
  background: var(--bg-1);
  border: 1px solid var(--border);
  padding: 24px;
}

.feature .label {
  color: var(--text-dim);
  font-size: 11px;
  display: block;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.feature p { color: var(--text-dim); font-size: 12px; }

.btn {
  display: inline-block;
  padding: 10px 22px;
  background: var(--white);
  color: #000;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s;
  letter-spacing: 0.3px;
}

.btn:hover { opacity: 0.75; text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--border);
}

.btn-ghost:hover { border-color: var(--border-hi); }

.btn-sm { padding: 7px 14px; font-size: 11px; }

.btn-danger {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  font-size: 11px;
  padding: 6px 14px;
}

.btn-danger:hover { color: var(--white); border-color: var(--border-hi); }

.form-section { max-width: 480px; }

.form-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 32px;
  letter-spacing: -0.5px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

input {
  background: var(--bg-1);
  border: 1px solid var(--border);
  color: var(--white);
  font-family: var(--font);
  font-size: 14px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.15s;
}

input:focus { border-color: var(--border-hi); }
input::placeholder { color: var(--text-dim); }

.hint {
  color: var(--text-dim);
  font-size: 11px;
  text-transform: none;
  letter-spacing: 0;
  margin-top: -2px;
}

.hint-link {
  color: var(--text-dim);
  font-size: 12px;
  text-transform: none;
}

.error { color: #888; margin-bottom: 4px; font-size: 13px; border-left: 2px solid var(--border-hi); padding-left: 10px; }
.success { color: var(--white); margin-bottom: 20px; font-size: 13px; }
.success strong { color: var(--white); }

.inbox-section h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 28px;
}

.inbox-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.back { color: var(--text-dim); font-size: 12px; white-space: nowrap; }
.inbox-header h2 { margin-bottom: 0; }

.inbox-list { display: flex; flex-direction: column; gap: 2px; }

.inbox-row {
  background: var(--bg-1);
  border: 1px solid var(--border);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: border-color 0.15s;
}

.inbox-row:hover { border-color: var(--border-hi); }

.inbox-name { color: var(--white); font-size: 13px; }
.chevron { color: var(--text-dim); font-size: 18px; }
.dim { color: var(--text-dim); }

.email-list { display: flex; flex-direction: column; gap: 2px; }

.email-row {
  background: var(--bg-1);
  border: 1px solid var(--border);
  padding: 20px;
}

.email-meta {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: 16px;
  margin-bottom: 14px;
  align-items: baseline;
}

.from { color: var(--white); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.subject { color: var(--text); font-size: 13px; font-weight: 500; }
.date { color: var(--text-dim); font-size: 11px; white-space: nowrap; }

.email-body { margin-bottom: 14px; }

.email-body pre {
  color: var(--text);
  font-family: var(--font);
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 180px;
  overflow-y: auto;
  background: var(--bg-2);
  padding: 14px;
  border-left: 2px solid var(--border);
  line-height: 1.6;
}

.empty { color: var(--text-dim); font-size: 13px; padding: 40px 0; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.blink { animation: blink 1s step-start infinite; color: var(--white); }

@media (max-width: 600px) {
  main { padding: 40px 20px; }
  header { padding: 16px 20px; }
  .features { grid-template-columns: 1fr; }
  .email-meta { grid-template-columns: 1fr; gap: 4px; }
  .hero h1 { font-size: 28px; }
  nav { gap: 14px; }
}

.site-footer {
  margin-top: 80px;
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.5px;
}