/* ============================================================================
   1. COLOR PALETTE CONFIGURATION
   ============================================================================
   INSTRUCTIONS: Uncomment ONE block below to set the site accent colors.
   - accent-light: Color used in Light Mode (Darker for contrast)
   - accent-dark:  Color used in Dark Mode  (Lighter/Pastel for contrast)
*/

:root {
    /* --- OPTION 1: FOREST GREEN (Default) --- */
    --accent-light: #198754;
    --accent-dark:  #75b798;

    /* --- OPTION 2: OCEAN BLUE --- */
    /*
    --accent-light: #0d6efd;
    --accent-dark:  #6ea8fe;
    */

    /* --- OPTION 3: CHERRY RED --- */
    /*
    --accent-light: #dc3545;
    --accent-dark:  #ea868f;
    */

    /* --- OPTION 4: ROYAL PURPLE --- */
    /*
    --accent-light: #6610f2;
    --accent-dark:  #a985f9;
    */

    /* --- OPTION 5: SOLAR ORANGE --- */
    /*
    --accent-light: #fd7e14;
    --accent-dark:  #feb272;
    */

    /* --- OPTION 6: TEAL / CYAN --- */
    /*
    --accent-light: #0aa2c0;
    --accent-dark:  #70e3fa;
    */

    /* --- OPTION 7: HOT PINK --- */
    /*
    --accent-light: #d63384;
    --accent-dark:  #f38ab4;
    */

    /* --- OPTION 8: SLATE GRAY (Monochrome) --- */
    /*
    --accent-light: #495057;
    --accent-dark:  #adb5bd;
    */
}

/* ============================================================================
   2. GLOBAL BASE COLOR VARIABLES
   ============================================================================ */
:root {
    /* Dark Mode Bases */
    --bg-dark: #212529;
    --text-dark: #f8f9fa;
    --card-dark: #2b3035;
    --border-dark: #495057;

    /* Light Mode Bases */
    --bg-light: #eef2f6;
    --text-light: #212529;
    --card-light: #ffffff;
    --border-light: #ced4da;
}

/* ============================================================================
   3. THEME LOGIC (Bootstrap Integration)
   ============================================================================ */

/* Light Mode Mapping */
[data-bs-theme="light"] {
    --main-accent: var(--accent-light);
    --on-accent-text: #ffffff;
    
    --bs-body-bg: var(--bg-light);
    --bs-body-color: var(--text-light);
    --bs-link-color: var(--main-accent);
    --bs-link-hover-color: #0056b3;
    
    --bs-secondary-color: #495057; 
    --bs-border-color: var(--border-light);
}

/* Dark Mode Mapping */
[data-bs-theme="dark"] {
    --main-accent: var(--accent-dark);
    --on-accent-text: #000000;

    --bs-body-bg: var(--bg-dark);
    --bs-body-color: var(--text-dark);
    --bs-link-color: var(--main-accent);
    --bs-link-hover-color: #ffffff;
    
    --bs-border-color: var(--border-dark);
}

/* ============================================================================
   4. COMPONENT OVERRIDES
   ============================================================================ */

/* --- Custom Text Utility --- */
.text-accent {
    color: var(--main-accent) !important;
    font-weight: 600;
}
.text-accent:hover {
    filter: brightness(1.2);
    text-decoration: underline !important;
}

/* --- Cards (Post/Content Containers) --- */
.post-card {
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
}
[data-bs-theme="dark"] .post-card {
    background-color: var(--card-dark);
    color: var(--text-dark);
    border: 1px solid var(--border-dark);
}
[data-bs-theme="light"] .post-card {
    background-color: var(--card-light);
    color: var(--text-light);
    border: 1px solid #d1d9e6; 
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}
.post-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

/* --- Buttons --- */
/* Solid Buttons */
.btn-primary, .btn-success {
    background-color: var(--main-accent) !important;
    border-color: var(--main-accent) !important;
    color: var(--on-accent-text) !important;
    font-weight: 600;
}
/* Outline Buttons */
.btn-outline-primary {
    --bs-btn-color: var(--main-accent);
    --bs-btn-border-color: var(--main-accent);
    --bs-btn-hover-bg: var(--main-accent);
    --bs-btn-hover-border-color: var(--main-accent);
    --bs-btn-hover-color: var(--on-accent-text);
    --bs-btn-active-bg: var(--main-accent);
    --bs-btn-active-border-color: var(--main-accent);
    --bs-btn-active-color: var(--on-accent-text);
}
.btn-primary:hover, .btn-outline-primary:hover, .btn-success:hover { 
    filter: brightness(110%); 
}

/* --- Form Inputs (Fixing Dark Mode Visibility) --- */
.form-control, .form-select {
    border: 1px solid var(--bs-border-color);
    transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
[data-bs-theme="light"] .form-control, 
[data-bs-theme="light"] .form-select {
    background-color: #f8f9fa;
    color: #212529;
}
[data-bs-theme="dark"] .form-control, 
[data-bs-theme="dark"] .form-select {
    background-color: #1a1d20;
    color: #f8f9fa;
}
.form-control:focus, .form-select:focus {
    border-color: var(--main-accent) !important;
    box-shadow: 0 0 0 0.25rem rgba(0, 128, 128, 0.25); /* Subtle glow */
    outline: 0;
}
[data-bs-theme="light"] .form-control:focus { background-color: #ffffff; }
[data-bs-theme="dark"] .form-control:focus { 
    background-color: #2b3035; 
    color: #ffffff; 
}
.form-range::-webkit-slider-thumb { background-color: var(--main-accent) !important; }
.form-range::-moz-range-thumb { background-color: var(--main-accent) !important; }

/* --- Navbar Tweaks --- */
.navbar-nav .nav-link { font-weight: 600; }
[data-bs-theme="light"] .navbar-nav .nav-link { color: #000000 !important; }
[data-bs-theme="light"] .navbar-nav .nav-link:hover { color: var(--main-accent) !important; }
[data-bs-theme="dark"] .navbar-nav .nav-link { color: rgba(255, 255, 255, 0.85) !important; }
[data-bs-theme="dark"] .navbar-nav .nav-link:hover { color: var(--main-accent) !important; }
.navbar-brand { font-weight: 700; color: var(--main-accent) !important; }

/* --- Theme Toggle Button --- */
#theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
}
#theme-icon { font-size: 1.1rem; }

/* ============================================================================
   5. UTILITIES (Markdown, LaTeX, etc)
   ============================================================================ */
.render-markdown p { margin-bottom: 1rem; }
.render-markdown code {
    background-color: rgba(128, 128, 128, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
}
.render-markdown pre {
    background-color: #1a1d20;
    color: #e9ecef;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
}
[data-bs-theme="light"] .render-markdown pre {
    background-color: #f8f9fa;
    color: #212529;
    border: 1px solid #dee2e6;
}