/* ============================================================
   AstroCalc — Dark Space Theme
   Main stylesheet for the astronomy web application
   ============================================================ */

/* --- Root Variables --- */
:root {
    --astro-bg: #0a0e1a;
    --astro-surface: #131829;
    --astro-card: #1a1f35;
    --astro-card-rgb: 26, 31, 53;
    --astro-border: #2a2f45;
    --color-solar: #ffa726;
    --color-lunar: #b0bec5;
    --color-planets: #7c4dff;
    --color-deepsky: #00e5ff;
    --color-optics: #69f0ae;
    --color-phenomena: #ff5252;
    --color-comets: #ffab40;
    --color-planner: #448aff;
}

/* --- Base --- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--astro-bg);
    color: #e0e0e0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    min-height: 100vh;
}

/* --- Text Utilities --- */
.text-solar { color: var(--color-solar) !important; }
.text-lunar { color: var(--color-lunar) !important; }
.text-planets { color: var(--color-planets) !important; }
.text-deepsky { color: var(--color-deepsky) !important; }
.text-optics { color: var(--color-optics) !important; }
.text-phenomena { color: var(--color-phenomena) !important; }
.text-comets { color: var(--color-comets) !important; }
.text-planner { color: var(--color-planner) !important; }

/* --- Links --- */
a {
    color: var(--color-deepsky);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #66eeff;
}

/* --- Navigation --- */
.astro-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(42, 47, 69, 0.5);
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    padding: 0.5rem 0;
}

.astro-nav.scrolled {
    background: rgba(10, 14, 26, 0.95);
    border-bottom-color: rgba(68, 138, 255, 0.15);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.astro-nav .nav-link {
    color: #b0b8c8;
    transition: color 0.2s ease;
}

.astro-nav .nav-link:hover,
.astro-nav .nav-link.active {
    color: #ffffff;
}

.astro-nav .navbar-brand {
    color: #ffffff;
    font-weight: 600;
}

/* --- Main Content --- */
.main-content {
    padding-top: 76px;
    min-height: calc(100vh - 76px);
}

/* --- Footer --- */
.astro-footer {
    background-color: #060a14;
    padding: 3rem 0;
    border-top: 1px solid var(--astro-border);
    color: #8892a4;
    font-size: 0.875rem;
}

.astro-footer a {
    color: #b0b8c8;
}

.astro-footer a:hover {
    color: var(--color-deepsky);
}

/* --- Cards --- */
.astro-card {
    background: var(--astro-card);
    border: 1px solid var(--astro-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.astro-card:hover {
    transform: translateY(-2px);
    border-color: rgba(68, 138, 255, 0.35);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* --- Hero Sections --- */
.astro-hero {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.astro-hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-hero {
    background: var(--astro-surface);
    padding: 3rem 0 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--astro-border);
}

.page-hero h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.page-hero p {
    color: #8892a4;
    margin-bottom: 0;
}

/* --- Section Header --- */
.section-header {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    position: relative;
}

.section-header::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-planner), transparent);
    border-radius: 2px;
}

/* --- Info Panel --- */
.info-panel {
    background: rgba(var(--astro-card-rgb), 0.5);
    border-left: 3px solid var(--color-solar);
    padding: 1rem 1.25rem;
    border-radius: 0 8px 8px 0;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: #c0c8d8;
}

/* --- Form Controls (Dark Theme) --- */
.form-control,
.form-select {
    background-color: var(--astro-card);
    border: 1px solid var(--astro-border);
    color: #ffffff;
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--astro-card);
    border-color: var(--color-planner);
    color: #ffffff;
    box-shadow: 0 0 0 3px rgba(68, 138, 255, 0.2);
    outline: none;
}

.form-control::placeholder {
    color: #5a6178;
}

.form-control:disabled,
.form-select:disabled {
    background-color: var(--astro-surface);
    opacity: 0.6;
}

.form-label {
    color: #b0b8c8;
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0.35rem;
}

/* --- Result Card --- */
.result-card {
    background: var(--astro-card);
    border: 1px solid var(--astro-border);
    border-left: 4px solid var(--color-deepsky);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
}

.result-card .result-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #8892a4;
    margin-bottom: 0.25rem;
}

.result-card .result-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
}

/* --- Tables --- */
.table-dark,
.table-dark th,
.table-dark td {
    background-color: var(--astro-card) !important;
    border-color: var(--astro-border) !important;
    color: #e0e0e0;
}

.table-dark thead th {
    background-color: var(--astro-surface) !important;
    border-bottom: 2px solid var(--astro-border) !important;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: #b0b8c8;
}

.table-dark tbody tr:hover {
    background-color: rgba(var(--astro-card-rgb), 0.7) !important;
}

/* --- Badges --- */
.badge-solar { background-color: var(--color-solar); color: #1a1a1a; }
.badge-lunar { background-color: var(--color-lunar); color: #1a1a1a; }
.badge-planets { background-color: var(--color-planets); color: #ffffff; }
.badge-deepsky { background-color: var(--color-deepsky); color: #1a1a1a; }
.badge-optics { background-color: var(--color-optics); color: #1a1a1a; }
.badge-phenomena { background-color: var(--color-phenomena); color: #ffffff; }
.badge-comets { background-color: var(--color-comets); color: #1a1a1a; }
.badge-planner { background-color: var(--color-planner); color: #ffffff; }

.badge-excellent { background-color: var(--color-optics); color: #1a1a1a; }
.badge-good { background-color: var(--color-planner); color: #ffffff; }
.badge-fair { background-color: var(--color-solar); color: #1a1a1a; }
.badge-poor { background-color: var(--color-phenomena); color: #ffffff; }

/* --- Animation Canvas --- */
.animation-canvas {
    border-radius: 8px;
    background-color: #0a0e14;
    border: 1px solid var(--astro-border);
    overflow: hidden;
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--astro-bg);
}

::-webkit-scrollbar-thumb {
    background: #2a3050;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #3a4060;
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: #2a3050 var(--astro-bg);
}

/* --- Dropdown (Bootstrap Dark Overrides) --- */
.dropdown-menu-dark,
.dropdown-menu[data-bs-theme="dark"] {
    background-color: var(--astro-card);
    border: 1px solid var(--astro-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.dropdown-menu-dark .dropdown-item,
.dropdown-menu[data-bs-theme="dark"] .dropdown-item {
    color: #c0c8d8;
    transition: background-color 0.15s ease;
}

.dropdown-menu-dark .dropdown-item:hover,
.dropdown-menu-dark .dropdown-item:focus,
.dropdown-menu[data-bs-theme="dark"] .dropdown-item:hover,
.dropdown-menu[data-bs-theme="dark"] .dropdown-item:focus {
    background-color: var(--astro-surface);
    color: #ffffff;
}

.dropdown-menu-dark .dropdown-divider {
    border-color: var(--astro-border);
}

/* --- Code Blocks --- */
pre,
code {
    font-family: "Cascadia Code", "Fira Code", "JetBrains Mono", Consolas, monospace;
}

pre {
    background-color: #0d1220;
    border: 1px solid var(--astro-border);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    color: #c0c8d8;
    overflow-x: auto;
    font-size: 0.875rem;
    line-height: 1.5;
}

code {
    background-color: rgba(var(--astro-card-rgb), 0.7);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.875em;
    color: var(--color-deepsky);
}

pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    color: inherit;
}

/* --- Details / Summary --- */
details {
    background: var(--astro-card);
    border: 1px solid var(--astro-border);
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

details summary {
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    font-weight: 500;
    color: #c0c8d8;
    transition: background-color 0.2s ease, color 0.2s ease;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

details summary::-webkit-details-marker {
    display: none;
}

details summary::before {
    content: "▶";
    font-size: 0.7em;
    transition: transform 0.2s ease;
    display: inline-block;
}

details[open] summary::before {
    transform: rotate(90deg);
}

details summary:hover {
    background-color: var(--astro-surface);
    color: #ffffff;
}

details > :not(summary) {
    padding: 0 1.25rem 1rem;
}

/* --- Button Accents --- */
.btn-solar { background-color: var(--color-solar); color: #1a1a1a; border: none; }
.btn-solar:hover { background-color: #ffb74d; color: #1a1a1a; }
.btn-deepsky { background-color: var(--color-deepsky); color: #1a1a1a; border: none; }
.btn-deepsky:hover { background-color: #33ecff; color: #1a1a1a; }
.btn-planner { background-color: var(--color-planner); color: #ffffff; border: none; }
.btn-planner:hover { background-color: #6da3ff; color: #ffffff; }

/* --- Responsive --- */
@media (max-width: 768px) {
    .astro-hero h1 {
        font-size: 2.25rem;
    }

    .page-hero {
        padding: 2rem 0 1.5rem;
    }

    .page-hero h1 {
        font-size: 1.5rem;
    }

    .section-header {
        font-size: 1.35rem;
    }

    .astro-card {
        padding: 1rem;
    }

    .result-card .result-value {
        font-size: 1.25rem;
    }

    .astro-footer {
        padding: 2rem 0;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .astro-hero h1 {
        font-size: 1.75rem;
    }

    .astro-card {
        border-radius: 8px;
    }

    .main-content {
        padding-top: 64px;
    }

    .result-card {
        padding: 1rem;
    }
}