/* Styles partagés (login + dashboard + barre de nav des outils) */

:root {
  --twx-primary: #1f4e79;
  --twx-accent: #2e75b6;
  --twx-bg: #f5f7fb;
  --twx-card: #ffffff;
  --twx-border: #e1e7f0;
  --twx-text: #1a1a18;
  --twx-text-muted: #5f6b7a;
  --twx-text-soft: #9aa3b2;
  --twx-danger: #c0392b;
  --twx-radius: 10px;
  --twx-shadow: 0 4px 20px rgba(31, 78, 121, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--twx-bg);
  color: var(--twx-text);
  line-height: 1.5;
}

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

/* ====== LOGIN ====== */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--twx-card);
  border: 1px solid var(--twx-border);
  border-radius: var(--twx-radius);
  box-shadow: var(--twx-shadow);
  padding: 36px 32px;
}

.login-card h1 {
  font-size: 22px;
  margin: 0 0 6px;
  color: var(--twx-primary);
}

.login-card p.subtitle {
  margin: 0 0 24px;
  font-size: 14px;
  color: var(--twx-text-muted);
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--twx-text);
}

.field input {
  width: 100%;
  padding: 11px 13px;
  font-size: 14px;
  border: 1px solid var(--twx-border);
  border-radius: 6px;
  background: #fff;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus {
  outline: none;
  border-color: var(--twx-accent);
  box-shadow: 0 0 0 3px rgba(46, 117, 182, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-primary {
  background: var(--twx-primary);
  color: #fff;
  width: 100%;
}

.btn-primary:hover {
  background: var(--twx-accent);
}

.btn-ghost {
  background: transparent;
  color: var(--twx-text-muted);
  border-color: var(--twx-border);
}

.btn-ghost:hover {
  color: var(--twx-text);
  border-color: var(--twx-text-muted);
}

.alert {
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 16px;
}

.alert-error {
  background: #fdecea;
  color: var(--twx-danger);
  border: 1px solid #f5c2bc;
}

/* ====== NAVBAR (dashboard + tool pages) ====== */
.navbar {
  background: #fff;
  border-bottom: 1px solid var(--twx-border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--twx-primary);
  font-size: 15px;
}

.navbar-brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--twx-accent);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}

.navbar-actions .user {
  color: var(--twx-text-muted);
}

.navbar-actions form {
  margin: 0;
}

.navbar-actions .btn {
  padding: 6px 12px;
  font-size: 12px;
}

/* ====== DASHBOARD ====== */
.dashboard-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.dashboard-shell h1 {
  font-size: 26px;
  margin: 0 0 6px;
  color: var(--twx-primary);
}

.dashboard-shell p.lead {
  color: var(--twx-text-muted);
  margin: 0 0 32px;
  font-size: 14px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.tool-card {
  background: var(--twx-card);
  border: 1px solid var(--twx-border);
  border-radius: var(--twx-radius);
  padding: 22px 22px 20px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--twx-shadow);
  border-color: var(--twx-accent);
  text-decoration: none;
}

.tool-card .badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--twx-accent);
  background: rgba(46, 117, 182, 0.1);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
  align-self: flex-start;
}

.tool-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--twx-text);
  line-height: 1.3;
}

.tool-card p {
  margin: 0;
  font-size: 13px;
  color: var(--twx-text-muted);
  flex-grow: 1;
}

.tool-card .arrow {
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--twx-accent);
}

/* ====== TOOL PAGE WRAPPER ====== */
.tool-page-body {
  background: #fff;
}

.tool-page-body .navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
}