/* shared/styles/base.css
   Sirve como base común — cada proyecto sobreescribe variables --primary,
   --primary-fg, --bg, --fg, --muted via el <style> inline de su HTML. */

* { box-sizing: border-box; }

:root {
  --primary: #111;
  --primary-fg: #fff;
  --bg: #fafafa;
  --fg: #111;
  --muted: #6b7280;
  --border: #e5e7eb;
  --card: #ffffff;
  --radius: 10px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}
.nav .brand {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.4px;
}

.hero {
  padding: 80px 0 60px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  letter-spacing: -1.5px;
  margin: 0 0 16px;
  line-height: 1.05;
}
.hero p {
  color: var(--muted);
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto 32px;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--primary);
  color: var(--primary-fg);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  border: 1px solid var(--primary);
  cursor: pointer;
  transition: opacity .15s;
}
.btn:hover { opacity: .9; text-decoration: none; }
.btn.ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.center-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.form { display: flex; flex-direction: column; gap: 14px; }
.form label { font-size: 13px; color: var(--muted); }
.form input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: inherit;
  background: var(--card);
  color: var(--fg);
}
.form input:focus { outline: 2px solid var(--primary); outline-offset: -1px; }

.auth-card {
  width: 100%;
  max-width: 380px;
}
.auth-card h2 {
  margin: 0 0 6px;
  font-size: 24px;
  letter-spacing: -0.5px;
}
.auth-card .sub {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 24px;
}

.footer {
  margin-top: 80px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.app-shell .topbar {
  border-bottom: 1px solid var(--border);
  background: var(--card);
}
.app-shell .topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.app-shell .main {
  flex: 1;
  padding: 48px 0;
}
.empty {
  text-align: center;
  padding: 60px 24px;
  color: var(--muted);
}
.empty h3 { color: var(--fg); margin: 0 0 8px; }