:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f1f5f9;
  --card-bg: #ffffff;
  --error: #dc2626;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.auth-container {
  width: 100%;
  max-width: 400px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 6px;
}

.tagline {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 24px;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.tab-btn {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  font-size: 14px;
}

.tab-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin: 14px 0 6px;
  color: var(--text);
}

input, select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

.role-group {
  display: flex;
  gap: 16px;
  margin-top: 6px;
}

.role-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  margin: 0;
}

.role-group input { width: auto; }

.primary-btn {
  width: 100%;
  padding: 12px;
  margin-top: 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.primary-btn:hover { background: var(--primary-dark); }
.primary-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.form-footer {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  margin-top: 16px;
}

.form-footer a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.error-msg {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--error);
  font-size: 13px;
  padding: 8px 12px;
  border-radius: 8px;
  margin-top: 14px;
  display: none;
}

.error-msg.visible { display: block; }

/* ============================================================
   Landing page (index.html) — namespaced to avoid colliding
   with the auth/dashboard styles above. Variables prefixed
   --landing-*, layout rules scoped under body.landing.
   ============================================================ */
:root {
  --landing-blue: #1769e8;
  --landing-blue-dark: #0b397a;
  --landing-blue-light: #eaf4ff;
  --landing-blue-pale: #f6faff;
  --landing-line: #a9c9ef;
  --landing-text: #123d76;
  --landing-muted: #607896;
  --landing-shadow: 0 14px 35px rgba(26, 83, 145, .10);
}

html { scroll-behavior: smooth; }

body.landing {
  display: block;
  align-items: initial;
  justify-content: initial;
  min-height: auto;
  padding: 0;
  font-family: "Trebuchet MS", "Segoe UI", Arial, sans-serif;
  color: var(--landing-text);
  background: linear-gradient(180deg, #fff 0%, #f7fbff 100%);
}

body.landing a { color: inherit; text-decoration: none; }
body.landing button { font: inherit; }

.landing-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 34px;
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid #d7e6f7;
  backdrop-filter: blur(10px);
  flex-wrap: wrap;
  gap: 10px;
}

.landing-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--landing-blue-dark);
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -.7px;
}

.landing-logo {
  position: relative;
  width: 43px;
  height: 35px;
  flex: 0 0 auto;
}

.landing-logo-cap {
  position: absolute;
  left: 3px;
  top: 3px;
  width: 31px;
  height: 18px;
  border: 3px solid var(--landing-blue-dark);
  transform: rotate(9deg) skewX(-15deg);
  border-radius: 3px;
}

.landing-logo-line {
  position: absolute;
  left: 8px;
  top: 20px;
  width: 24px;
  height: 11px;
  border: 3px solid var(--landing-blue-dark);
  border-top: 0;
  border-radius: 0 0 9px 9px;
}

.landing-logo-dot {
  position: absolute;
  right: 2px;
  bottom: 1px;
  width: 7px;
  height: 7px;
  background: var(--landing-blue-dark);
  border-radius: 50%;
}

.landing-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 15px;
  font-weight: 800;
  flex-wrap: wrap;
}

.landing-nav a { transition: color .2s ease, transform .2s ease; }
.landing-nav a:hover { color: var(--landing-blue); transform: translateY(-1px); }

.landing-nav .nav-login {
  padding: 9px 17px;
  border: 1px solid var(--landing-blue);
  border-radius: 7px;
  color: var(--landing-blue);
}

.landing-nav .nav-register {
  padding: 10px 18px;
  border-radius: 7px;
  background: var(--landing-blue);
  color: white;
  box-shadow: 0 6px 14px rgba(23,105,232,.18);
}

.landing-hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 76px 28px 70px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 55px;
  align-items: center;
}

.landing-hero-label {
  display: inline-block;
  padding: 8px 13px;
  border: 1px solid var(--landing-line);
  border-radius: 6px;
  background: var(--landing-blue-light);
  color: var(--landing-blue-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .7px;
}

.landing h1 {
  margin: 19px 0 0;
  color: var(--landing-blue-dark);
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -2px;
}

.landing h1 span { color: var(--landing-blue); }

.landing-hero-text {
  max-width: 610px;
  margin: 23px 0 28px;
  color: var(--landing-muted);
  font-size: 18px;
  line-height: 1.7;
}

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

.landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 145px;
  padding: 13px 22px;
  border-radius: 7px;
  border: 1px solid var(--landing-blue);
  background: var(--landing-blue);
  color: white;
  font-weight: 900;
  transition: transform .2s ease, box-shadow .2s ease;
}

.landing-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 9px 18px rgba(23,105,232,.20);
}

.landing-btn.secondary { background: white; color: var(--landing-blue); box-shadow: none; }

.dashboard-preview {
  position: relative;
  padding: 15px;
  border: 1px solid var(--landing-line);
  border-radius: 14px;
  background: white;
  box-shadow: var(--landing-shadow);
  transform: rotate(.6deg);
  max-width: 100%;
}

.preview-window {
  overflow: hidden;
  border: 1px solid #c4daf2;
  border-radius: 9px;
  background: #fbfdff;
}

.preview-top {
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  background: white;
  border-bottom: 1px solid #d4e5f6;
  font-size: 13px;
  font-weight: 900;
}

.preview-brand { display: flex; align-items: center; gap: 7px; }

.mini-cap {
  width: 20px;
  height: 12px;
  border: 2px solid var(--landing-blue-dark);
  transform: skewX(-14deg);
}

.preview-body {
  display: grid;
  grid-template-columns: 105px 1fr;
  min-height: 335px;
}

.preview-side { padding: 14px 8px; border-right: 1px solid #d4e5f6; background: #fff; }

.side-item {
  padding: 8px 9px;
  margin-bottom: 5px;
  border-radius: 5px;
  font-size: 10px;
  font-weight: 800;
  color: #486886;
}

.side-item.active { background: #dff0ff; color: var(--landing-blue); }

.preview-content { padding: 18px; }
.landing .welcome { margin-bottom: 14px; }
.landing .welcome strong { display: block; font-size: 18px; color: var(--landing-blue-dark); margin-bottom: 4px; }
.landing .welcome span { font-size: 10px; color: var(--landing-muted); }

.preview-main-card {
  padding: 15px;
  border: 1px solid #c6ddf4;
  border-radius: 7px;
  background: linear-gradient(135deg, #f8fcff, #edf7ff);
  margin-bottom: 12px;
}

.preview-main-card strong { display: block; font-size: 13px; margin-bottom: 7px; }
.preview-main-card p { margin: 0 0 13px; font-size: 10px; line-height: 1.5; color: var(--landing-muted); }

.fake-button {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 5px;
  background: var(--landing-blue);
  color: white;
  font-size: 9px;
  font-weight: 900;
}

.preview-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.small-card {
  padding: 13px;
  min-height: 85px;
  border: 1px solid #c6ddf4;
  border-radius: 7px;
  background: white;
}

.small-icon {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  margin-bottom: 8px;
  border-radius: 5px;
  background: #e3f2ff;
  color: var(--landing-blue);
  font-size: 12px;
  font-weight: 900;
}

.small-card strong { display: block; font-size: 10px; }
.small-card span { font-size: 8px; color: var(--landing-muted); }

.floating-note {
  position: absolute;
  right: -10px;
  bottom: -18px;
  padding: 12px 16px;
  border: 1px solid var(--landing-line);
  border-radius: 8px;
  background: white;
  box-shadow: var(--landing-shadow);
  font-size: 11px;
  font-weight: 900;
  color: var(--landing-blue-dark);
  max-width: calc(100% - 20px);
}

.landing-section { max-width: 1180px; margin: 0 auto; padding: 40px 28px 80px; }

.section-band {
  display: inline-block;
  padding: 10px 15px;
  border: 1px solid var(--landing-line);
  border-radius: 7px;
  background: var(--landing-blue-light);
  color: var(--landing-blue-dark);
  font-size: 21px;
  font-weight: 900;
  margin-bottom: 22px;
}

.section-heading { max-width: 700px; margin-bottom: 27px; }
.section-heading h2 { margin: 0 0 8px; font-size: 32px; color: var(--landing-blue-dark); }
.section-heading p { margin: 0; color: var(--landing-muted); line-height: 1.65; }

.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }

.feature {
  min-height: 190px;
  padding: 21px;
  border: 1px solid var(--landing-line);
  border-radius: 9px;
  background: white;
  box-shadow: 0 5px 15px rgba(30,80,140,.05);
}

.feature-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 15px;
  border: 2px solid var(--landing-blue);
  border-radius: 8px;
  color: var(--landing-blue);
  font-weight: 900;
  font-size: 19px;
}

.feature h3 { margin: 0 0 8px; color: var(--landing-blue-dark); font-size: 17px; }
.feature p { margin: 0; color: var(--landing-muted); font-size: 13px; line-height: 1.55; }

.role-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }

.role-card { padding: 25px; border: 1px solid var(--landing-line); border-radius: 9px; background: white; }
.role-card h3 { margin: 0 0 8px; color: var(--landing-blue-dark); font-size: 21px; }
.role-card p { margin: 0 0 15px; color: var(--landing-muted); line-height: 1.6; font-size: 14px; }
.role-card ul { margin: 0; padding-left: 20px; color: var(--landing-text); font-size: 14px; line-height: 1.9; }

.landing-about { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.about-card { padding: 26px; border: 1px solid var(--landing-line); border-radius: 9px; background: white; }
.about-card h3 { margin: 0 0 10px; color: var(--landing-blue-dark); }
.about-card p { margin: 0; color: var(--landing-muted); line-height: 1.7; }

.landing-footer {
  border-top: 1px solid #c8def5;
  background: #edf6ff;
  padding: 23px 34px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  color: var(--landing-blue-dark);
  font-weight: 800;
  font-size: 13px;
  flex-wrap: wrap;
}

.landing-footer-brand { font-size: 21px; }
.landing-footer-links { display: flex; gap: 19px; flex-wrap: wrap; }
.landing-footer-links a:hover { color: var(--landing-blue); }

/* Responsiveness */
@media (max-width: 1000px) {
  .landing-hero { grid-template-columns: 1fr; padding-top: 45px; gap: 36px; }
  .dashboard-preview { max-width: 560px; width: 100%; margin: 0 auto; order: -1; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .landing-header { padding: 10px 16px; }
  .landing-brand { font-size: 22px; }
  .landing-nav { gap: 6px; }
  .landing-nav a:not(.nav-login):not(.nav-register) { display: none; }
  .landing-nav .nav-login, .landing-nav .nav-register { padding: 8px 10px; font-size: 12px; }

  .landing-hero { padding: 34px 16px 45px; }
  .landing h1 { font-size: 38px; letter-spacing: -1px; }
  .landing-hero-text { font-size: 15px; }
  .landing-hero-actions .landing-btn { flex: 1; min-width: 0; }

  .preview-body { grid-template-columns: 74px 1fr; min-height: auto; }
  .floating-note { position: static; margin-top: 12px; display: inline-block; }

  .landing-section { padding: 24px 16px 45px; }
  .section-band { font-size: 17px; padding: 8px 12px; }
  .section-heading h2 { font-size: 24px; }

  .feature-grid, .role-grid, .landing-about { grid-template-columns: 1fr; }

  .landing-footer { flex-direction: column; align-items: flex-start; padding: 20px 16px; }
}

@media (max-width: 400px) {
  .preview-body { grid-template-columns: 1fr; }
  .preview-side { display: flex; overflow-x: auto; border-right: none; border-bottom: 1px solid #d4e5f6; gap: 6px; }
  .side-item { white-space: nowrap; margin-bottom: 0; }
  .preview-cards { grid-template-columns: 1fr; }
}

/* Logo image used before "Synthexa" text across sidebars, auth pages,
   and the landing header. Base size fits the small sidebar/auth .brand;
   larger contexts override below. */
.brand-logo {
  width: 24px;
  height: 24px;
  object-fit: contain;
  vertical-align: middle;
  margin-right: 6px;
}

.landing-brand-logo {
  width: 40px;
  height: 40px;
  margin-right: 10px;
}

.preview-brand-logo {
  width: 16px;
  height: 16px;
  margin-right: 4px;
}

/* Password field with a show/hide eye icon toggle (login/register). */
.password-field {
  position: relative;
}

.password-field input {
  padding-right: 40px;
}

.toggle-password {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 4px;
  color: var(--muted);
}

.toggle-password:hover {
  color: var(--text);
}