/* ============================================================
   Gonanku - layout.css
   ============================================================ */

.kerangka-app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar default desktop */
.sidebar {
  width: 260px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width 0.3s ease, background 0.3s ease;
  z-index: 100;
  position: relative;
}

.sidebar.collapsed {
  width: 72px;
}

/* Main Area */
.area-utama {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--bg-main);
  background-image: var(--bg-mesh);
  background-attachment: fixed;
}

/* Topbar */
.topbar {
  height: 76px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
  z-index: 50;
}

.topbar-kiri {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-judul {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.topbar-kanan {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Main Content Area */
.konten {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 32px;
}

.pembungkus-konten {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* Mobile backdrop */
.backdrop-sidebar {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  z-index: 99;
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* ══════════════════════════════════════════════
   LOGIN PAGE
   (styling khusus halaman login — tidak pakai sidebar)
   ══════════════════════════════════════════════ */
.halaman-login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background-color: var(--bg-main);
  background-image: var(--bg-mesh);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.toggle-login {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 10;
}

.kartu-login {
  width: 100%;
  max-width: 420px;
  background: var(--bg-panel-solid);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  box-shadow: 0 16px 64px rgba(15, 40, 84, 0.08),
              0 4px 16px rgba(15, 40, 84, 0.04);
  padding: 40px 36px;
}

.login-merek {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.wadah-logo-besar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.login-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.login-merek .merek-judul {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.login-subjudul {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 28px;
  line-height: 1.6;
}

.kolom-form {
  margin-bottom: 16px;
}

.label-form {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.tombol-blok {
  width: 100%;
}

/* Alert (flash) di halaman login */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
  border: 1px solid transparent;
}
.alert-bahaya {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}
.alert-peringatan {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}
.alert-sukses {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.2);
  color: var(--success);
}

/* Responsive login */
@media (max-width: 480px) {
  .halaman-login { padding: 16px; }
  .kartu-login { padding: 32px 24px; border-radius: var(--radius-lg); }
  .login-merek .merek-judul { font-size: 22px; }
  .wadah-logo-besar { width: 56px; height: 56px; }
  .login-logo { width: 40px; height: 40px; }
}

/* Responsive */
@media (max-width: 860px) {
  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: -260px;
  }
  
  .sidebar.terbuka {
    left: 0;
  }

  .backdrop-sidebar.tampil {
    display: block;
    opacity: 1;
  }

  .topbar {
    padding: 0 20px;
  }

  .konten {
    padding: 20px;
  }
}