/* Εταιρικό site - Ισολογισμοί & Υποκαταστήματα */
:root {
  --color-primary: #1e3a5f;
  --color-primary-light: #2c5282;
  --color-accent: #c9a227;
  --color-bg: #f5f6fa;
  --color-card: #fff;
  --color-text: #2d3748;
  --color-muted: #718096;
  --font-sans: 'Segoe UI', system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 1rem; }

/* Header */
.site-header {
  background: var(--color-primary);
  color: #fff;
  padding: 1rem 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.site-header .brand { display: flex; align-items: center; gap: 0.75rem; }
.site-header .logo { height: 42px; width: auto; display: block; }
.site-header h1 { margin: 0; font-size: 1.5rem; }
.site-header .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }

.nav-main {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-main a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  font-weight: 500;
}
.nav-main a:hover { color: var(--color-accent); }

/* Content */
main { padding: 2rem 0; min-height: 50vh; }

.page-title { color: var(--color-primary); margin-top: 0; }

.company-details { margin-bottom: 1.5rem; }
.company-details p { margin: 0.25rem 0; }
.company-details .company-name { font-weight: 600; margin-bottom: 0.5rem; }
.company-details a { color: var(--color-primary); text-decoration: none; }
.company-details a:hover { text-decoration: underline; }

/* Cards */
.card {
  background: var(--color-card);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

/* Branch links */
.branch-list { list-style: none; padding: 0; margin: 0; }
.branch-list li { margin-bottom: 0.75rem; }
.branch-list a {
  display: block;
  padding: 0.75rem 1rem;
  background: var(--color-bg);
  border-radius: 6px;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  border-left: 4px solid var(--color-accent);
}
.branch-list a:hover { background: #e8eef5; }

.branch-address { display: block; font-size: 0.9rem; color: var(--color-muted); margin-top: 0.25rem; }

/* Balance sheets list */
.balance-list { list-style: none; padding: 0; margin: 0; }
.balance-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem;
  border-bottom: 1px solid #eee;
  gap: 1rem;
}
.balance-list li:last-child { border-bottom: none; }
.balance-list a { color: var(--color-primary); text-decoration: none; }
.balance-list a:hover { text-decoration: underline; }
.balance-list .date { color: var(--color-muted); font-size: 0.9rem; }

.balance-year-group { margin-bottom: 1.5rem; }
.balance-year-group:last-child { margin-bottom: 0; }
.balance-year { font-size: 1.1rem; margin: 0 0 0.5rem 0; color: var(--color-text); }
.balance-year-empty { margin: 0 0 0.5rem 0; color: var(--color-muted); font-size: 0.9rem; }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.35rem; font-weight: 500; }
.form-group input[type="text"],
.form-group input[type="file"] { width: 100%; max-width: 400px; padding: 0.5rem; border: 1px solid #ccc; border-radius: 4px; }
.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
}
.btn:hover { background: var(--color-primary-light); }
.alert { padding: 0.75rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
.alert-success { background: #c6f6d5; color: #22543d; }
.alert-error { background: #fed7d7; color: #742a2a; }

/* Footer */
.site-footer {
  margin-top: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid #e2e8f0;
  color: var(--color-muted);
  font-size: 0.9rem;
}