:root {
  --fm-login-bg: #08090B;
  --fm-login-sidebar: #09090A;
  --fm-login-panel: #18181A;
  --fm-login-surface: #101012;
  --fm-login-card: #1A1A1C;
  --fm-login-border-subtle: #28282C;
  --fm-login-border: #3A3A40;
  --fm-login-text-muted: #8A8A92;
  --fm-login-text-secondary: #B8B8C0;
  --fm-login-text: #F4F4F6;
  --fm-login-button-bg: #F7F7F7;
  --fm-login-button-text: #111113;
  --fm-login-error-accent: #B34953;
  --fm-login-error-surface: #2A1518;
  --fm-login-focus: #F4F4F6;
  --fm-login-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--fm-login-bg);
  color: var(--fm-login-text);
  min-height: 100vh;
  min-height: 100dvh;
}

/* ── Shell ─────────────────────────────────────── */

.fm-login-shell {
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
}

/* ── Sidebar ───────────────────────────────────── */

.fm-login-sidebar {
  width: 260px;
  background: var(--fm-login-sidebar);
  border-right: 1px solid var(--fm-login-border-subtle);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
}

@media (max-width: 767px) {
  .fm-login-sidebar {
    display: none;
  }
}

.fm-login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.fm-login-monogram {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--fm-login-border);
  background: var(--fm-login-bg);
  color: var(--fm-login-text);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  border-radius: 10px;
}

.fm-login-brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.fm-login-product {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fm-login-text);
}

.fm-login-workspace {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--fm-login-text-muted);
}

/* ── Main ──────────────────────────────────────── */

.fm-login-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.04), transparent 35%),
    var(--fm-login-bg);
}

@media (max-width: 767px) {
  .fm-login-main {
    padding: 1.5rem 1rem;
  }
}

/* ── Card ──────────────────────────────────────── */

.fm-login-card {
  width: min(100%, 420px);
  padding: 2rem;
  background: var(--fm-login-card);
  border: 1px solid var(--fm-login-border);
  border-radius: 12px;
  box-shadow: var(--fm-login-shadow);
}

@media (max-width: 767px) {
  .fm-login-card {
    padding: 1.5rem;
    border-radius: 10px;
  }
}

.fm-login-heading {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--fm-login-text);
  margin-bottom: 0.5rem;
  line-height: 1.15;
}

@media (max-width: 767px) {
  .fm-login-heading {
    font-size: 1.15rem;
  }
}

.fm-login-copy {
  font-size: 0.85rem;
  color: var(--fm-login-text-muted);
  margin-bottom: 1.75rem;
  line-height: 1.45;
}

/* ── Error region ──────────────────────────────── */

.fm-login-error {
  padding: 0.85rem 1rem;
  margin-bottom: 1.25rem;
  background: var(--fm-login-error-surface);
  border: 1px solid var(--fm-login-error-accent);
  border-left: 3px solid var(--fm-login-error-accent);
  border-radius: 8px;
  color: #ffd4d4;
  font-size: 0.82rem;
  line-height: 1.4;
}

/* ── Fields ────────────────────────────────────── */

.fm-login-field {
  margin-bottom: 1.15rem;
}

.fm-login-field label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fm-login-text-secondary);
}

.fm-login-field input[type="text"],
.fm-login-field input[type="password"] {
  width: 100%;
  padding: 0.8rem 0.9rem;
  background: var(--fm-login-surface);
  border: 1px solid var(--fm-login-border);
  border-radius: 8px;
  color: var(--fm-login-text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

.fm-login-field input::placeholder {
  color: var(--fm-login-text-muted);
}

.fm-login-field input:hover {
  border-color: var(--fm-login-border);
}

.fm-login-field input:focus {
  outline: none;
  border-color: var(--fm-login-focus);
  box-shadow: 0 0 0 2px rgba(244, 244, 246, 0.18);
}

.fm-login-field input[autofocus]:focus {
  border-color: var(--fm-login-focus);
  box-shadow: 0 0 0 2px rgba(244, 244, 246, 0.22);
}

.fm-login-field-error {
  margin-top: 0.4rem;
  font-size: 0.78rem;
  color: #ffd4d4;
  line-height: 1.35;
}

/* ── Submit ────────────────────────────────────── */

.fm-login-submit {
  width: 100%;
  margin-top: 1.5rem;
  padding: 0.9rem 1rem;
  background: var(--fm-login-button-bg);
  color: var(--fm-login-button-text);
  border: none;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  font-family: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.12s ease, transform 0.06s ease;
}

.fm-login-submit:hover {
  background: #e4e4e6;
}

.fm-login-submit:focus {
  outline: 2px solid var(--fm-login-focus);
  outline-offset: 2px;
}

.fm-login-submit:active {
  transform: scale(0.985);
}

.fm-login-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Mobile-only sidebar hint ──────────────────── */

@media (max-width: 767px) {
  .fm-login-main::before {
    content: "FM";
    margin: 0 auto 1.5rem;
    width: 40px;
    height: 40px;
    border: 1px solid var(--fm-login-border);
    border-radius: 10px;
    background: var(--fm-login-bg);
    color: var(--fm-login-text);
    font-weight: 800;
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}