/* Merged style.css with Bootstrap dark theme overrides */
:root {
    --bg: #0b0c0f;
    --accent: #00e8c6;
    --accent-contrast: #FF4DD1;
    --text-hero: #e9fefc;
    --text-main: #d4d7da;
    --text-strong: #f6f7f8;
    --text-muted: #9ca0a5;
}

.accent {
    color: var(--accent);
    font-weight: bold; /* optional */
}

html {
    position: relative;
    min-height: 100%;
}

body {
    margin: 0;
    margin-bottom: 60px;
    font-family: Inter, Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-main);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 25px 25px;
    animation: parallax 90s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes parallax {
    0% { background-position: 0 0; }
    50% { background-position: 50px 50px; }
    100% { background-position: 0 100px; }
}


.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 20px 20px;
    position: relative;
    z-index: 1;
}

.figure img {
    width: 100%;
    height: auto;
}

a {
    color: var(--accent);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

.breadcrumb {
    font-size: 0.95rem;
    margin-bottom: 40px;
    color: var(--text-muted);
}

.breadcrumb-item.active {
    color: var(--accent-color, #ffffff);  /* or whichever color you prefer */
    font-weight: 600;
}

h1 {
    font-size: 3rem;
    color: var(--text-hero);
    margin-bottom: 15px;
}

h2 {
    font-size: 1.9rem;
    color: var(--text-hero);
    margin-top: 60px;
    margin-bottom: 10px;
}

p {
    max-width: none;
    line-height: 1.65;
    margin-bottom: 18px;
}

.section {
    margin-top: 40px;
    padding: 40px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    box-shadow: 0 0 20px rgba(0, 232, 198, 0.15);
}

.highlight {
    color: var(--text-strong);
}

ul {
    margin-left: 20px;
}

li {
    margin-bottom: 8px;
}

.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    text-align: center;
    /* Set the fixed height of the footer here */
    height: 60px;
    background-color: var(--bg);
    color: var(--text-muted);
}

.text-muted {
    color: var(--text-muted) !important;
}

.future_date {
    font-style: italic;
    font-size: 0.75em;
}

/* for comparison calculator that have two fields with different content */
.highlight-diff {
    border: 1px solid var(--accent-contrast);
    border-radius: 10px;
    box-shadow: 0 0 4px 4px var(--accent-contrast);
}

/* Custom styles for the sidebar */
.offcanvas-start {
    width: 250px;
}

/* Ensure there's no backdrop when the offcanvas is shown */
.offcanvas-backdrop {
    display: none;
}

/* Placeholder for main content */
.main-content {
    padding: 20px;
    transition: margin-left 1s;
}

.offcanvas {
    transition: transform 1s ease;
}

.plot-container {
    width: 100%;
    height: 60vh; /* Full viewport height */
}

.dropdown-submenu {
  position: relative;
}

.dropdown-submenu > .dropdown-menu {
  top: 0;
  left: 100%;
  margin-top: -6px;
}

.dropdown-menu {
  display: none;
}

.dropdown:hover > .dropdown-menu,
.dropdown-submenu:hover > .dropdown-menu {
  display: block;
}

.nav-item:hover .collapse {
    display: block !important;
}

.collapse {
    display: none;
}

.collapse.show {
    display: block;
}

/* Bootstrap dark theme overrides for forms and components */
.form-label {
    color: var(--text-main);
}

.form-control {
    background-color: rgba(255, 255, 255, 0.075);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.form-control:focus {
    background-color: rgba(255, 255, 255, 0.125);
    border-color: var(--accent);
    color: var(--text-main);
    box-shadow: 0 0 0 0.25rem rgba(0, 232, 198, 0.25);
}

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

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

.btn-primary:hover {
    background-color: #00d4b2;
    border-color: #00d4b2;
    color: #fff;
}

.btn-primary:focus {
    box-shadow: 0 0 0 0.25rem rgba(0, 232, 198, 0.5);
}

.btn-primary:active {
    background-color: #00c0a0;
    border-color: #00c0a0;
}

/* Navbar overrides */
.bg-body-tertiary {
    background-color: rgba(255, 255, 255, 0.03) !important;
    color: var(--text-main);
    position: relative !important;
}

.navbar-nav .nav-link {
    color: var(--text-main);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
    color: var(--accent);
}

.navbar-brand {
    color: var(--text-hero);
}

.navbar-brand:hover {
    color: var(--accent);
}

/* Tabs overrides */
.nav-tabs {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-tabs .nav-link {
    color: var(--text-muted);
    background: transparent;
    border-color: transparent;
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.nav-tabs .nav-link:hover {
    color: var(--text-main);
    border-bottom-color: var(--accent);
}

.nav-tabs .nav-link.active {
    color: var(--accent);
    background: transparent;
    border-color: var(--accent);
    border-bottom-color: var(--accent);
}

.navbar-text {
    color: var(--text-main);
}

/* Dropdown menu overrides */
.dropdown-menu {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dropdown-item {
    color: var(--text-main);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--accent);
}

.dropdown-item.active,
.dropdown-item:active {
    background-color: var(--accent);
    color: #fff;
}

/* Tab content */
.tab-content .tab-pane {
    color: var(--text-main);
}

/* Disable number input spinners */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

/* Dark Theme for Plotly Accordion */
.accordion {
    --bs-accordion-color: var(--text-main);
    --bs-accordion-bg: transparent;  /* No bg—lets page grid shine */
    --bs-accordion-active-bg: rgba(255, 255, 255, 0.05);
    --bs-accordion-active-color: var(--accent);
    --bs-accordion-btn-bg: transparent;
    --bs-accordion-btn-color: var(--text-main);
    --bs-accordion-btn-active-bg: rgba(0, 232, 198, 0.1);  /* Subtle cyan tint */
    --bs-accordion-btn-active-color: var(--accent);
    --bs-accordion-border-color: rgba(255, 255, 255, 0.1);
}

.accordion-item {
    background: transparent;  /* Transparent for grid bleed-through */
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: 0 0 10px rgba(0, 232, 198, 0.08);  /* Soft glow like .section */
}

.accordion-header {
    background: transparent;
}

.accordion-button {
    font-size: 1.1rem;  /* Slightly larger for touch */
    font-weight: 500;
    color: var(--text-main);
    border: none;
    padding: 0.5rem 0.5rem;
    transition: all 0.3s ease;  /* Smooth with your offcanvas */
}

.accordion-button:not(.collapsed) {
    background: rgba(0, 232, 198, 0.1);
    color: var(--accent);
    border-bottom: 1px solid rgba(0, 232, 198, 0.2);
    box-shadow: inset 0 -1px 0 rgba(0, 232, 198, 0.15);  /* Inner glow */
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(0, 232, 198, 0.25);
    outline: none;
}

.accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%239ca0a5'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");  /* Custom chevron in --text-muted */
    filter: brightness(1.2);
}

.accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300e8c6'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");  /* Accent chevron */
    transform: rotate(-180deg);  /* Bootstrap default rotation */
}

.accordion-collapse {
    border: none;  /* Seamless with item border */
}

.accordion-body {
    background: rgba(255, 255, 255, 0.03);  /* Matches .section */
    padding: 0.5rem;
    border-radius: 0 0 8px 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Dark theme help text */
.form-text {
    color: var(--text-muted); /* or use a slightly lighter shade */
    font-size: 0.875rem; /* optional, keep it slightly smaller */
}

.form-text a {
    color: var(--accent);
    text-decoration: underline;
}

.form-text a:hover {
    color: #00d4b2; /* slightly brighter accent on hover */
}


/* Dark Theme for Form Selects (Choice Fields) */
.form-select {
    background-color: rgba(255, 255, 255, 0.075);  /* Matches .form-control bg */
    border-color: rgba(255, 255, 255, 0.1);  /* Subtle border */
    color: var(--text-main);
    padding: 0.375rem 2.25rem 0.375rem 0.75rem;  /* Bootstrap default, but themed */
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%239ca0a5' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");  /* Custom down arrow in --text-muted */
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 16px 12px;
    border-radius: 0.375rem;  /* Matches form-control */
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-select:hover {
    background-color: rgba(255, 255, 255, 0.1);  /* Lighter on hover */
    border-color: rgba(0, 232, 198, 0.3);  /* Hint of accent */
}

.form-select:focus {
    background-color: rgba(255, 255, 255, 0.125);  /* Matches .form-control:focus */
    border-color: var(--accent);
    color: var(--text-main);
    box-shadow: 0 0 0 0.25rem rgba(0, 232, 198, 0.25);  /* Cyan glow */
    outline: none;
}

.form-select option {
    background-color: #0b0c0f;  /* Dark bg for dropdown options */
    color: var(--text-main);  /* Light text */
    padding: 0.25rem 0.5rem;
}

.form-select option:hover,
.form-select option:focus {
    background-color: rgba(0, 232, 198, 0.1);  /* Cyan tint on select */
    color: var(--accent);
}

/* Placeholder-like for empty selects */
.form-select:invalid {
    color: var(--text-muted);
}

/* Disabled state */
.form-select:disabled {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    border-color: rgba(255, 255, 255, 0.05);
}

/* Size variants (if using form-select-sm/lg) */
.form-select-sm {
    padding: 0.25rem 1.5rem 0.25rem 0.5rem;
    background-size: 12px 9px;
}

.form-select-lg {
    padding: 0.5rem 2.5rem 0.5rem 1rem;
    background-size: 20px 15px;
}

/* Responsive: Full-width on small screens */
@media (max-width: 768px) {
    .form-select {
        font-size: 0.875rem;
    }
}

/* Offcanvas Sidebar Dark Theme Consistency */
#offcanvasSidebar {
    background: rgba(255, 255, 255, 0.03);  /* Translucent—grid peeks through */
    border-right: 1px solid rgba(255, 255, 255, 0.05);  /* Subtle edge like .section */
    color: var(--text-main);
    backdrop-filter: blur(10px);  /* Soft blur for depth */
}

#offcanvasSidebar .offcanvas-header {
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-hero);
}

#offcanvasSidebar .offcanvas-body {
    padding: 1rem 0;  /* Less padding than default for nav focus */
    background: transparent;
}

#offcanvasSidebar .container {
    max-width: none;  /* Full offcanvas width */
    padding: 0 1.5rem;  /* Inner breathing room */
}

/* Nav Pills in Sidebar */
#offcanvasSidebar .nav-pills {
    --bs-nav-pills-link-active-bg: var(--accent);
    --bs-nav-pills-link-active-color: #fff;
    --bs-nav-pills-link-color: var(--text-main);
    --bs-nav-pills-link-hover-color: var(--accent);
    --bs-nav-pills-link-disabled-color: var(--text-muted);
}

#offcanvasSidebar .nav-pills .nav-link {
    color: var(--text-main);
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0.75rem 1rem;
    margin: 0;
    font-size: 0.95rem;  /* Compact */
    transition: all 0.3s ease;  /* Smooth with page transitions */
    border-left: 3px solid transparent;  /* Left accent bar */
}

#offcanvasSidebar .nav-pills .nav-link:hover,
#offcanvasSidebar .nav-pills .nav-link:focus {
    color: var(--accent);
    background: rgba(0, 232, 198, 0.05);
    border-left-color: var(--accent);
    box-shadow: inset 0 0 0 1px rgba(0, 232, 198, 0.1);
}

#offcanvasSidebar .nav-pills .nav-link.active {
    color: #fff;
    background: transparent;
    border-left-color: var(--accent);
    font-weight: 500;
    box-shadow: inset 0 0 0 1px rgba(0, 232, 198, 0.2);
}

/* Collapsible Headers & Submenus (Match Dropdown Consistency) */
#offcanvasSidebar .nav-link.collapsed[data-bs-toggle="collapse"] {
    color: var(--text-main);
}

#offcanvasSidebar .nav-link[data-bs-toggle="collapse"]:not(.collapsed) {
    color: var(--accent);
    background: rgba(0, 232, 198, 0.05);
    border-left-color: var(--accent);
}

#offcanvasSidebar .nav-item-submenu {
    border-left: 1px solid rgba(255, 255, 255, 0.1);  /* Indent guide */
}

#offcanvasSidebar .collapse {
    background: transparent;
    border: none;
}

#offcanvasSidebar .collapse.show {
    animation: fadeIn 0.3s ease;  /* Subtle entry */
}

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

/* Bootstrap Icons (Chevron) */
#offcanvasSidebar .bi-chevron-down {
    color: var(--text-muted);
    transition: transform 0.3s ease, color 0.3s ease;
    font-size: 0.8rem;
}

#offcanvasSidebar .nav-link[data-bs-toggle="collapse"]:not(.collapsed) .bi-chevron-down {
    transform: rotate(-90deg);  /* Rotate on expand */
    color: var(--accent);
}

/* Overflow Handling (for Long Expirations List) */
#offcanvasSidebar .overflow-auto {
    max-height: 60vh;  /* Adjusted for sidebar height */
    scrollbar-width: thin;  /* Firefox */
    scrollbar-color: var(--accent) rgba(255, 255, 255, 0.1);
}

#offcanvasSidebar .overflow-auto::-webkit-scrollbar {
    width: 4px;
}

#offcanvasSidebar .overflow-auto::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.03);
}

#offcanvasSidebar .overflow-auto::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 2px;
}

/* Responsive: Hide trigger on mobile, full-width nav */
@media (max-width: 768px) {
    #offcanvasSidebar {
        width: 100% !important;  /* Full overlay on small screens */
    }
    #offcanvasSidebar .nav-link {
        padding: 0.5rem 1rem;
    }
}

/* Main Content Shift (If Using .main-content Class) */
@media (min-width: 769px) {
    #offcanvasSidebar.show ~ .main-content {
        margin-left: 250px;  /* Shift content when open */
        transition: margin-left 1s ease;
    }
}


/* Dark Theme for Django Messages (Bootstrap Alerts) */
.alert {
    --bs-alert-color: var(--text-main);
    --bs-alert-bg: rgba(255, 255, 255, 0.03);  /* Translucent—grid visible */
    --bs-alert-border-color: rgba(255, 255, 255, 0.05);
    --bs-alert-link-color: var(--accent);
    background: var(--bs-alert-bg);
    border: 1px solid var(--bs-alert-border-color);
    border-radius: 8px;
    color: var(--bs-alert-color);
    box-shadow: 0 0 15px rgba(0, 232, 198, 0.1);  /* Subtle cyan glow like .section */
    margin-bottom: 1rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;  /* Smooth fade-in */
}

.alert-dismissible .btn-close {
    filter: invert(1) brightness(0.8);  /* White close icon for dark bg */
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.alert-dismissible .btn-close:hover {
    opacity: 1;
    filter: invert(1) sepia(1) saturate(5) hue-rotate(160deg);  /* Cyan tint on hover */
}

/* Variant Overrides (Map to Theme) */
.alert-success {
    --bs-alert-color: #d4d7da;  /* --text-main */
    --bs-alert-bg: rgba(0, 232, 198, 0.1);  /* Cyan tint for success */
    --bs-alert-border-color: rgba(0, 232, 198, 0.2);
}

.alert-info {
    --bs-alert-color: #d4d7da;
    --bs-alert-bg: rgba(0, 232, 198, 0.1);  /* Reuse cyan for info */
    --bs-alert-border-color: rgba(0, 232, 198, 0.2);
}

.alert-warning {
    --bs-alert-color: #d4d7da;
    --bs-alert-bg: rgba(255, 193, 7, 0.15);  /* Muted yellow, low opacity */
    --bs-alert-border-color: rgba(255, 193, 7, 0.3);
}

.alert-danger {
    --bs-alert-color: #d4d7da;
    --bs-alert-bg: rgba(220, 53, 69, 0.15);  /* Muted red, low opacity */
    --bs-alert-border-color: rgba(220, 53, 69, 0.3);
}

/* Position: Top of page (if in base.html) */
body .alert:first-child {
    margin-top: 1rem;  /* Space from navbar */
}

/* Fade animation on show */
.alert.fade.show {
    animation: slideDown 0.3s ease-out;
}

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

/* Responsive: Stack and full-width on mobile */
@media (max-width: 768px) {
    .alert {
        margin-left: 1rem;
        margin-right: 1rem;
        border-radius: 6px;
    }
}

.navbar .dropdown-menu {
    background-color: rgba(11, 12, 15, 0.85); /* semi-transparent */
    backdrop-filter: blur(6px);               /* blur behind the menu */
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}