/* ==========================================================
   Vitrine de Sistemas — JonBrecci
   Paleta definida em /tema_JonBrecci.md
   ========================================================== */

:root {
  /* Principais */
  --color-primary: #001f3f;
  --color-secondary: #FFFFFF;

  /* Apoio */
  --color-primary-light: #003366;
  --color-primary-mid: #0A2E4D;
  --color-bg-section: #F4F6F8;

  /* Accent */
  --color-accent: #00B8A9;
  --color-accent-hover: #00a394;
  --color-accent-alt-orange: #FF9F1C;
  --color-accent-alt-red: #E63946;

  /* Neutros */
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #6C757D;
  --color-border: #DEE2E6;

  /* Estado */
  --color-success: #28A745;
  --color-danger: #DC3545;
  --color-warning: #FFC107;
  --color-info: #17A2B8;

  --font-base: 'Poppins', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --hover-shadow: rgba(0, 31, 63, 0.15);
}

* { box-sizing: border-box; }

body, html {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: var(--font-base);
  background-color: var(--color-bg-section);
  color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; }

/* ===== Topo ===== */
.top-bar {
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 40px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-mid) 100%);
  color: var(--color-secondary);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  flex-wrap: wrap;
}

.top-left, .top-center, .top-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 140px;
}

.top-center { align-items: center; text-align: center; }
.top-right { align-items: flex-end; text-align: right; }

.logo-circle {
  width: 70px;
  height: 70px;
  border: 2px solid var(--color-secondary);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  font-weight: bold;
  font-size: 1.4rem;
  color: var(--color-secondary);
}
.logo-circle img { width: 100%; height: 100%; object-fit: cover; }

.site-title {
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin: 0;
  font-size: 1.8rem;
  font-weight: 300;
}
.site-tagline {
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
  margin-top: 6px;
  letter-spacing: 0.5px;
}

#clock-date { font-size: 0.9rem; opacity: 0.9; text-transform: uppercase; letter-spacing: 1px; }
#clock-time { font-size: 1.8rem; font-weight: bold; margin-top: 5px; }

.admin-link {
  margin-top: 10px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.5px;
}
.admin-link a { color: rgba(255,255,255,0.75); text-decoration: none; }
.admin-link a:hover { color: var(--color-accent); }

/* ===== Grid de sistemas ===== */
.systems-section {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 56px 40px;
}

.systems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  width: 100%;
  max-width: 1100px;
}

.system-card {
  background-color: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.system-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-8px);
  box-shadow: 0 10px 25px var(--hover-shadow);
}

.system-card .icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 0 auto 18px;
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--color-primary);
  transition: border-color 0.3s ease, color 0.3s ease;
}
.system-card .icon img { width: 100%; height: 100%; object-fit: cover; }
.system-card:hover .icon { border-color: var(--color-accent); color: var(--color-accent); }

.system-card h3 {
  margin: 0;
  color: var(--color-primary);
  font-size: 1.1rem;
  font-weight: 600;
}

.system-card p {
  margin: 10px 0 0;
  color: var(--color-text-secondary);
  font-size: 0.86rem;
  line-height: 1.5;
}

.empty-state {
  text-align: center;
  color: var(--color-text-secondary);
  padding: 40px 0;
  grid-column: 1 / -1;
}

/* ===== Rodapé ===== */
.footer-bar {
  min-height: 60px;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--color-primary-light);
  color: var(--color-secondary);
  font-size: 0.9rem;
  letter-spacing: 1px;
  padding: 12px 20px;
  text-align: center;
}

/* ===== Responsivo ===== */
@media (max-width: 720px) {
  .top-bar { justify-content: center; text-align: center; padding: 24px; }
  .top-left, .top-center, .top-right { align-items: center; text-align: center; flex: none; width: 100%; }
  .systems-section { padding: 40px 20px; }
}