/* ==========================================================================
   Çi Logistics — Design System & Global Styles
   Developer: Çi Solutions
   Tagline: Every delivery. Every detail. Under control.
   ========================================================================== */

:root {
  /* Brand Palette */
  --color-primary: #123D32;         /* Deep Forest Green */
  --color-primary-dark: #0A241E;
  --color-primary-light: #1A5445;
  --color-secondary: #D9B45C;       /* Muted Gold */
  --color-secondary-hover: #C59F48;
  --color-secondary-light: #F7EFCF;
  --color-bg: #F5F5F0;              /* Ivory */
  --color-surface: #FFFFFF;
  --color-surface-subtle: #FAF9F5;
  --color-text: #303A36;            /* Charcoal */
  --color-text-muted: #62726B;
  --color-text-light: #8E9E97;
  --color-accent: #DCE7E0;          /* Pale Green */
  --color-border: #E0E7E2;
  --color-border-dark: #C9D5CE;

  /* Status Colors */
  --status-delivered: #1B7A43;
  --status-delivered-bg: #E8F5E9;
  --status-transit: #0D6EFD;
  --status-transit-bg: #E7F1FF;
  --status-pending: #D97706;
  --status-pending-bg: #FEF3C7;
  --status-dispatch: #6F42C1;
  --status-dispatch-bg: #F3E8FF;
  --status-out: #0D9488;
  --status-out-bg: #CCFBF1;
  --status-cancelled: #DC2626;
  --status-cancelled-bg: #FEE2E2;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Elevation / Shadows */
  --shadow-xs: 0 1px 2px rgba(18, 61, 50, 0.05);
  --shadow-sm: 0 2px 4px rgba(18, 61, 50, 0.06);
  --shadow-md: 0 4px 12px rgba(18, 61, 50, 0.08);
  --shadow-lg: 0 10px 25px rgba(18, 61, 50, 0.10);
  --shadow-xl: 0 20px 40px rgba(18, 61, 50, 0.14);

  /* Layout & Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  --container-max: 1200px;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-secondary-hover);
}

img, svg {
  vertical-align: middle;
  max-width: 100%;
}

/* Demo Header Banner */
.demo-banner {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
  font-size: 0.8125rem;
  padding: 0.5rem 1rem;
  border-bottom: 2px solid var(--color-secondary);
}

.demo-banner-content {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.demo-badge {
  background-color: var(--color-secondary);
  color: var(--color-primary-dark);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.demo-banner-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.demo-banner-links a {
  color: #FFFFFF;
  opacity: 0.9;
  font-size: 0.78rem;
  text-decoration: underline;
}

.demo-banner-links a:hover {
  opacity: 1;
  color: var(--color-secondary);
}

/* Main Site Header / Navbar */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-xs);
}

.navbar-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand & Logo Placeholder */
.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-placeholder-box {
  background: var(--color-primary);
  border: 1.5px dashed var(--color-secondary);
  color: #FFFFFF;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform var(--transition-fast);
}

.brand-link:hover .logo-placeholder-box {
  transform: translateY(-1px);
}

.logo-text-top {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--color-secondary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.logo-text-main {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.1;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.logo-text-tag {
  font-size: 0.6rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 400;
}

.brand-text-col {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.brand-attribution {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  padding: 0.4rem 0.2rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-secondary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  white-space: nowrap;
}

.btn-sm {
  font-size: 0.8125rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  font-size: 1.05rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-lg);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  color: #FFFFFF;
  border-color: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-primary-dark);
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background-color: var(--color-secondary-hover);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
}

.btn-outline-gold {
  background-color: transparent;
  color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.btn-outline-gold:hover {
  background-color: rgba(217, 180, 92, 0.15);
  color: #FFFFFF;
}

.btn-light {
  background-color: #FFFFFF;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-light:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-border-dark);
}

/* Badges & Pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.pill-delivered {
  background-color: var(--status-delivered-bg);
  color: var(--status-delivered);
}

.pill-transit {
  background-color: var(--status-transit-bg);
  color: var(--status-transit);
}

.pill-pending {
  background-color: var(--status-pending-bg);
  color: var(--status-pending);
}

.pill-dispatch {
  background-color: var(--status-dispatch-bg);
  color: var(--status-dispatch);
}

.pill-out {
  background-color: var(--status-out-bg);
  color: var(--status-out);
}

.pill-cancelled {
  background-color: var(--status-cancelled-bg);
  color: var(--status-cancelled);
}

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.65rem 0.95rem;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(18, 61, 50, 0.12);
}

.form-text {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
}

/* Cards */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-border-dark);
}

/* Modal Dialog */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 36, 30, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-container {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-border);
  animation: modalFadeIn 200ms ease;
}

.modal-container.modal-lg {
  max-width: 850px;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.97) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--color-surface-subtle);
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.modal-close:hover {
  background-color: var(--color-accent);
  color: var(--color-text);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  background-color: var(--color-surface-subtle);
}

/* Toast Notifications System */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.85rem 1.25rem;
  max-width: 380px;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  animation: toastSlideIn 250ms ease;
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.toast.toast-success {
  border-left-color: var(--status-delivered);
}

.toast.toast-warning {
  border-left-color: var(--color-secondary);
}

.toast.toast-danger {
  border-left-color: var(--status-cancelled);
}

.toast-icon {
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.2rem;
}

.toast-message {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* PWA Install Banner */
.pwa-banner {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #FFFFFF;
  padding: 0.85rem 1.25rem;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 2px solid var(--color-secondary);
}

.pwa-banner.active {
  display: flex;
}

.pwa-banner-text {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.pwa-banner-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Site Footer */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
  padding: 4rem 1.25rem 2rem;
  margin-top: auto;
  border-top: 4px solid var(--color-secondary);
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col-brand .brand-name {
  color: #FFFFFF;
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.footer-col-brand .tagline {
  color: var(--color-secondary);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-desc {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.footer-heading {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-secondary);
  padding-left: 4px;
}

.hub-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.75);
}

.hub-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hub-bullet {
  width: 6px;
  height: 6px;
  background-color: var(--color-secondary);
  border-radius: 50%;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-attribution {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-attribution strong {
  color: var(--color-secondary);
}

/* Responsive Navbar / Layout */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: inline-flex;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 2px solid var(--color-primary);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    gap: 1rem;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-link {
    width: 100%;
    padding: 0.5rem 0;
  }

  .nav-actions {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}