/* ==================================================================
   Letterbox Hosted - Modern Visual Refresh
   ================================================================== */

/* ------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   ------------------------------------------------------------------ */
:root {
   /* Primary palette - modernized teal/ocean tones */
   --color-primary: #3d8b7a;
   --color-primary-dark: #2d6e5f;
   --color-primary-light: #5ba897;
   --color-primary-subtle: #e8f4f1;

   /* Accent - warm gold */
   --color-accent: #e6b84a;
   --color-accent-dark: #d4a33a;

   /* Neutrals */
   --color-text: #2d3748;
   --color-text-muted: #718096;
   --color-text-light: #a0aec0;
   --color-bg: #ffffff;
   --color-bg-subtle: #f7fafc;
   --color-border: #e2e8f0;
   --color-border-light: #edf2f7;

   /* Feedback colors */
   --color-success: #38a169;
   --color-success-bg: #f0fff4;
   --color-error: #c53030;
   --color-error-bg: #fff5f5;
   --color-warning: #d69e2e;
   --color-warning-bg: #fffff0;

   /* Shadows */
   --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
   --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
   --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
   --shadow-focus: 0 0 0 3px rgba(61, 139, 122, 0.3);

   /* Spacing */
   --space-xs: 0.25rem;
   --space-sm: 0.5rem;
   --space-md: 1rem;
   --space-lg: 1.5rem;
   --space-xl: 2rem;
   --space-2xl: 3rem;

   /* Border radius */
   --radius-sm: 0.375rem;
   --radius-md: 0.5rem;
   --radius-lg: 0.75rem;
   --radius-xl: 1rem;

   /* Transitions */
   --transition-fast: 150ms ease;
   --transition-normal: 250ms ease;
}

/* ------------------------------------------------------------------
   Base & Typography
   ------------------------------------------------------------------ */
.nautical-compartment {
   filter: opacity(0.01);
}

#nautical-cargo {
   text-align: left;
}

#nautical-cargo h1,
#nautical-cargo h2,
#nautical-cargo h3,
#nautical-cargo h4,
#nautical-cargo h5,
#nautical-cargo h6,
#nautical-cargo p,
#nautical-cargo li {
   text-align: left;
}

#nautical-cargo h1,
#nautical-cargo h2,
#nautical-cargo h3,
#nautical-cargo h4 {
   font-family: 'Sulphur Point', sans-serif;
   font-weight: 600;
   color: var(--color-text);
   letter-spacing: -0.025em;
}

#nautical-cargo h5,
#nautical-cargo h6,
#nautical-cargo p,
#nautical-cargo small,
#nautical-cargo sup,
#nautical-cargo li,
#nautical-cargo td,
#nautical-cargo th,
.navbar li {
   font-family: 'Sulphur Point', sans-serif;
}

#nautical-cargo p {
   color: var(--color-text-muted);
   line-height: 1.7;
}

/* ------------------------------------------------------------------
   Header
   ------------------------------------------------------------------ */
header h1,
header h6 {
   font-family: 'Cinzel', serif;
}

header h6 {
   text-align: center;
}

header h1 {
   text-align: left;
   font-size: 1.5em;
   color: var(--color-primary);
   letter-spacing: 0.025em;
}

header h1 a,
header h1 a:visited {
   color: inherit;
   transition: color var(--transition-fast);
}

header h1 a:hover {
   text-decoration: none;
   color: var(--color-primary-dark);
}

header small {
   font-size: 0.5em;
}

/* ------------------------------------------------------------------
   Card (Form Container)
   ------------------------------------------------------------------ */
#nautical-cargo .card {
   background: var(--color-bg);
   border-radius: var(--radius-xl);
   box-shadow: var(--shadow-lg);
   padding: var(--space-xl);
   margin: var(--space-lg) auto;
   max-width: 700px;
   border: 1px solid var(--color-border-light);
}

#nautical-cargo .card .card-title {
   margin-bottom: var(--space-lg);
   padding-bottom: var(--space-md);
   border-bottom: 2px solid var(--color-primary-subtle);
}

#nautical-cargo .card .card-title h4 {
   font-size: 1.5rem;
   color: var(--color-primary-dark);
   margin: 0;
}

#nautical-cargo .card .card-body {
   padding: var(--space-md) 0 0 0;
}

/* ------------------------------------------------------------------
   Form Elements
   ------------------------------------------------------------------ */
.form-group {
   margin-bottom: var(--space-lg);
}

.form-group.row {
   align-items: flex-start;
}

.col-form-label {
   font-weight: 500;
   color: var(--color-text);
   font-size: 0.9375rem;
   padding-top: calc(var(--space-sm) + 2px);
}

.form-control {
   border: 2px solid var(--color-border);
   border-radius: var(--radius-md);
   padding: var(--space-sm) var(--space-md);
   font-size: 1rem;
   color: var(--color-text);
   background-color: var(--color-bg);
   transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
   min-height: 44px;
}

.form-control:hover {
   border-color: var(--color-primary-light);
}

.form-control:focus {
   border-color: var(--color-primary);
   box-shadow: var(--shadow-focus);
   outline: none;
   background-color: var(--color-bg);
}

.form-control::placeholder {
   color: var(--color-text-light);
}

textarea.form-control {
   min-height: 160px;
   resize: vertical;
}

/* ------------------------------------------------------------------
   Buttons
   ------------------------------------------------------------------ */
.btn {
   font-weight: 600;
   padding: var(--space-sm) var(--space-lg);
   border-radius: var(--radius-md);
   font-size: 1rem;
   min-height: 48px;
   transition: all var(--transition-fast);
   border: 2px solid transparent;
}

.btn-primary {
   background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
   border-color: var(--color-primary-dark);
   color: white;
   box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn-primary:focus {
   background: linear-gradient(135deg, var(--color-primary-dark) 0%, #245a4c 100%);
   border-color: #245a4c;
   box-shadow: var(--shadow-md);
   transform: translateY(-1px);
}

.btn-primary:active {
   transform: translateY(0);
   box-shadow: var(--shadow-sm);
}

.btn-primary:disabled {
   background: var(--color-text-light);
   border-color: var(--color-text-light);
   transform: none;
   box-shadow: none;
   cursor: not-allowed;
}

.btn-secondary {
   background: var(--color-bg);
   border-color: var(--color-border);
   color: var(--color-text-muted);
}

.btn-secondary:hover,
.btn-secondary:focus {
   background: var(--color-bg-subtle);
   border-color: var(--color-text-light);
   color: var(--color-text);
}

/* ------------------------------------------------------------------
   Alerts & Validation
   ------------------------------------------------------------------ */
.alert {
   border-radius: var(--radius-md);
   padding: var(--space-md) var(--space-lg);
   border: none;
   font-size: 0.9375rem;
}

.alert-primary {
   background-color: var(--color-success-bg);
   color: var(--color-success);
   border-left: 4px solid var(--color-success);
}

.redirect-countdown {
   margin-top: var(--space-sm);
   opacity: 0.8;
}

.alert-warning {
   background-color: var(--color-warning-bg);
   color: var(--color-warning);
   border-left: 4px solid var(--color-warning);
}

.alert-danger {
   background-color: var(--color-error-bg);
   color: var(--color-error);
   border-left: 4px solid var(--color-error);
}

.alert .close {
   opacity: 0.6;
   transition: opacity var(--transition-fast);
}

.alert .close:hover {
   opacity: 1;
}

.validation.alert {
   padding: var(--space-sm) var(--space-md);
}

.validation.alert ul {
   margin: 0;
   padding-left: var(--space-lg);
}

#nautical-cargo .alert ul {
   margin-bottom: 0;
}

/* ------------------------------------------------------------------
   Spinner (Loading State)
   ------------------------------------------------------------------ */
.spinner-border-sm {
   width: 1rem;
   height: 1rem;
   border-width: 2px;
}

/* ------------------------------------------------------------------
   Navigation
   ------------------------------------------------------------------ */
h5 a,
h5 a:visited {
   color: inherit;
}

.flurdy-warped-small img {
   height: 14px;
   filter: opacity(0.7);
}

.eray-small img {
   height: 22px;
   filter: opacity(0.6);
   margin-bottom: 7px;
}

.navbar .blanknav img {
   height: 42px;
}

.navbar li {
   font-size: 10pt;
}

.navbar-nav li.notyet {
   text-decoration: line-through;
}

.navbar .navversion {
   display: none;
   font-size: 8pt;
   color: silver;
   font-style: italic;
}

.navbar li a,
.navbar li a:visited,
nav li a,
nav li a:visited {
   color: inherit;
}

#nautical-lighthouse .navbar {
   padding: 0.3em 1em 0.3em 0.5em;
}

#nautical-lighthouse .navbar .nav-item {
   padding-top: 5px;
}

#nautical-buoy .navbar {
   padding: 1em 1em 0.3em 0.5em;
}

#nautical-buoy .navbar .nav-item {
   padding-bottom: 5px;
}

#nautical-buoy .navbar .nav-link {
   color: var(--color-text-muted);
   transition: color var(--transition-fast);
}

#nautical-buoy .navbar .nav-link:hover {
   color: var(--color-primary);
}

/* ------------------------------------------------------------------
   Index Page Specific
   ------------------------------------------------------------------ */
#nautical-page-index .muted a,
#nautical-page-index .muted a:visited {
   color: silver;
}

#nautical-page-index #nautical-fleet {
   align-items: center;
}

#nautical-page-index #nautical-ballast {
   padding: 0.5em;
}

#nautical-page-index h5 {
   font-family: 'Cinzel', serif;
   text-align: center;
}

#nautical-page-index #nautical-bow,
#nautical-page-index #nautical-cargo {
   text-align: center;
}

/* ------------------------------------------------------------------
   Content Spacing
   ------------------------------------------------------------------ */
#nautical-cargo h4 {
   margin: 1em 1em 0.5em 0;
}

#nautical-cargo h5 {
   margin: 1.5em 0 0.75em 0;
   color: var(--color-text);
   font-weight: 600;
}

p code,
li code,
td code,
dd code {
   color: var(--color-primary-dark);
   background: var(--color-primary-subtle);
   padding: 0.125em 0.375em;
   border-radius: var(--radius-sm);
   font-size: 0.875em;
}

/* ------------------------------------------------------------------
   Dark Mode Toggle
   ------------------------------------------------------------------ */
#nautical-buoy .navbar #darktoggle,
#nautical-lighthouse .navbar #darktoggle {
   padding-top: 3px;
   text-align: center;
   margin: 0 auto;
}

#nautical-buoy .navbar #darktoggle {
   padding-top: 0px;
   padding-bottom: 3px;
}

#nautical-buoy #darktoggle img,
#nautical-lighthouse #darktoggle img {
   filter: invert(35%);
   width: 18px;
   height: 18px;
   margin: 0px 5px;
   transition: filter var(--transition-fast);
}

#nautical-buoy #darktoggle img:hover,
#nautical-lighthouse #darktoggle img:hover {
   filter: invert(50%);
}

/* ------------------------------------------------------------------
   Language Toggle
   ------------------------------------------------------------------ */
#nautical-buoy .navbar #langtoggle {
   display: flex;
   align-items: center;
   padding: 0 5px;
}

#langtoggle .lang-link {
   font-size: 0.7rem;
   padding: 2px 4px;
   color: var(--color-text-muted, #999);
   text-decoration: none;
   transition: color var(--transition-fast);
}

#langtoggle .lang-link:hover {
   color: var(--color-primary, #4da89a);
}

#langtoggle .lang-link.lang-active {
   font-weight: bold;
   color: var(--color-primary, #4da89a);
}

#langtoggle .lang-separator {
   font-size: 0.65rem;
   color: var(--color-text-muted, #999);
   margin: 0 1px;
}

/* ------------------------------------------------------------------
   Fade-in Animations
   ------------------------------------------------------------------ */
.fade-in-1 { animation: fadeIn 0.4s ease-out 0.1s both; }
.fade-in-2 { animation: fadeIn 0.4s ease-out 0.2s both; }
.fade-in-3 { animation: fadeIn 0.4s ease-out 0.3s both; }
.fade-in-4 { animation: fadeIn 0.4s ease-out 0.4s both; }
.fade-in-5 { animation: fadeIn 0.4s ease-out 0.5s both; }

@keyframes fadeIn {
   from {
      opacity: 0;
      transform: translateY(10px);
   }
   to {
      opacity: 1;
      transform: translateY(0);
   }
}

/* ==================================================================
   Dark Mode
   ================================================================== */
.dark-mode {
   --color-text: #e2e8f0;
   --color-text-muted: #a0aec0;
   --color-text-light: #718096;
   --color-bg: #1a202c;
   --color-bg-subtle: #2d3748;
   --color-border: #4a5568;
   --color-border-light: #2d3748;
   --color-primary-subtle: rgba(61, 139, 122, 0.2);

   --color-success-bg: rgba(56, 161, 105, 0.15);
   --color-error-bg: rgba(197, 48, 48, 0.15);
   --color-warning-bg: rgba(214, 158, 46, 0.15);

   --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
   --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
   --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

.dark-mode,
.dark-mode #nautical-ocean,
.dark-mode .card {
   background-color: var(--color-bg);
   color: var(--color-text);
}

.dark-mode #nautical-cargo .card {
   background: var(--color-bg-subtle);
   border-color: var(--color-border);
}

.dark-mode .form-control {
   background-color: var(--color-bg);
   border-color: var(--color-border);
   color: var(--color-text);
}

.dark-mode .form-control:focus {
   background-color: var(--color-bg);
   border-color: var(--color-primary-light);
}

.dark-mode .col-form-label {
   color: var(--color-text);
}

.dark-mode a:not(.btn),
.dark-mode a:visited:not(.btn) {
   color: var(--color-primary-light);
}

.dark-mode a:hover,
.dark-mode .navbar-light .navbar-nav .nav-link a:hover,
.dark-mode .navbar-light .navbar-nav .nav-link:hover {
   color: #7dd3c7;
}

.dark-mode a:active,
.dark-mode .navbar-light .navbar-nav .nav-link a:active,
.dark-mode .navbar-light .navbar-nav .nav-link:active {
   color: var(--color-accent);
}

.dark-mode .navbar-nav .nav-link {
   color: var(--color-text-muted);
}

.dark-mode #nautical-buoy .eray-small img {
   filter: invert(100%);
}

.dark-mode #nautical-buoy #darktoggle img,
.dark-mode #nautical-lighthouse #darktoggle img {
   filter: invert(70%);
}

.dark-mode p code,
.dark-mode li code,
.dark-mode td code,
.dark-mode dd code {
   color: var(--color-primary-light);
   background: var(--color-primary-subtle);
}

.dark-mode #nautical-cargo .card .card-title h4 {
   color: var(--color-primary-light);
}

.dark-mode .btn-secondary {
   background: var(--color-bg-subtle);
   border-color: var(--color-border);
   color: var(--color-text-muted);
}

.dark-mode .btn-secondary:hover {
   background: var(--color-border);
   color: var(--color-text);
}

/* ------------------------------------------------------------------
   Responsive Adjustments
   ------------------------------------------------------------------ */
@media (max-width: 768px) {
   #nautical-cargo .card {
      padding: var(--space-lg);
      margin: var(--space-md);
      border-radius: var(--radius-lg);
   }

   .col-form-label {
      text-align: left !important;
      padding-bottom: var(--space-xs);
   }

   .form-control {
      font-size: 16px; /* Prevents zoom on iOS */
   }
}

@media (max-width: 576px) {
   #nautical-cargo .card {
      padding: var(--space-md);
      margin: var(--space-sm);
   }

   #nautical-cargo .card .card-title h4 {
      font-size: 1.25rem;
   }

   .btn {
      padding: var(--space-sm) var(--space-md);
   }
}