/* =============================================
   SK33T — swiftmail.cc style
   ============================================= */

:root {
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #21262d;
  --border-color: #30363d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --accent-blue: #7c3aed;
  --accent-green: #3fb950;
  --accent-red: #f85149;
}

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

html, body {
  height: 100%;
  width: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  font-size: 14px;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Centering ---------- */
.outer {
  display: table;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.middle {
  display: table-cell;
  vertical-align: middle;
}

.inner {
  width: 360px;
  margin: 0 auto;
}

/* ---------- Login Card ---------- */
.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 32px;
}

/* ---------- Form ---------- */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.input-group input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

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

.input-group input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

/* ---------- Button ---------- */
.login-btn {
  width: 100%;
  padding: 10px 0;
  background: var(--accent-blue);
  border: 1px solid var(--accent-blue);
  border-radius: 6px;
  color: #fff;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 4px;
}

.login-btn:hover {
  background: #6d28d9;
}

.login-btn:active {
  background: #5b21b6;
}

/* ---------- Error ---------- */
.error-message {
  text-align: center;
  font-size: 13px;
  color: var(--accent-red);
  margin-top: 16px;
  min-height: 20px;
  visibility: hidden;
}

.error-message.visible {
  visibility: visible;
}

/* ---------- Loading state ---------- */
.login-btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

.login-btn.loading::after {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-left: 8px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  .inner {
    width: 92%;
  }

  .login-card {
    padding: 24px;
  }
}