/* ===================================
  Main Stylesheet
   =================================== */

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

@font-face {
  font-family: 'OpenSans-Light';
  src: url('/2021/css/fonts/Open_Sans/OpenSans-Light.ttf') format('truetype'); 
}
@font-face {
  font-family: 'OpenSans-Regular';
  src: url('/2021/css/fonts/Open_Sans/OpenSans-Regular.ttf') format('truetype'); 
}

:root {
    --color-primary: #1a3a5c;
    --color-primary-dark: #0f2440;
    --color-primary-light: #2a5a8c;
    --color-accent: #c9a84c;
    --color-bg: #f4f5f7;
    --color-white: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #6c757d;
    --color-border: #dee2e6;
    --color-error: #c0392b;
    --color-success: #27ae60;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --radius: 6px;
    --radius-lg: 10px;
    --font-main: 'OpenSans-Regular', sans-serif;
    --font-serif: 'OpenSans-Light', sans-serif;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    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 0.2s ease;
}

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

img.forumimg {
    width: 60px;
    vertical-align: middle;
    margin-left: 4px;
}
/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    text-decoration: none;
    letter-spacing: 0.3px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-logout {
    background-color: transparent;
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 6px 16px;
    font-size: 0.85rem;
}

.btn-logout:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.7);
}

/* --- Login Page --- */
.login-page {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    background: var(--color-white);
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}
.login-header img {
    display:block;
    margin:auto;
    width:100%;
    max-width: 350px;
}

.login-header h1 {
    font-family: var(--font-serif);
    color: var(--color-primary);
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.login-header p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* --- Forms --- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: var(--font-main);
    color: var(--color-text);
    background-color: var(--color-white);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.login-container .btn-primary {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    margin-top: 8px;
}

.error-message {
    background-color: #fdf2f2;
    color: var(--color-error);
    border: 1px solid #f5c6cb;
    border-radius: var(--radius);
    padding: 10px 14px;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

/* --- Navbar --- */
.navbar {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 0 32px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand h1 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    letter-spacing: 0.1rem;
    color: var(--color-white);
}

.nav-brand a {
    color: var(--color-white);
    text-decoration: none;
    display: flex;
    flex-direction: row;
    align-items: center;
}
.nav-brand a img {
    margin-right: 8px;
    width: 50px;
}

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

.nav-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-username {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* --- Main Container --- */
.container {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 32px 20px;
    flex: 1;
}

/* --- Forum Header --- */
.forum-header {
    margin-bottom: 24px;
}

.forum-header h2 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    color: var(--color-primary);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-accent);
}

/* --- Topic Cards --- */
.topics-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.topic-card {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-primary);
    transition: box-shadow 0.2s ease, transform 0.15s ease;
}

.topic-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.topic-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
    gap: 12px;
}

.topic-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.4;
}

.topic-title:hover {
    color: var(--color-accent);
}

.topic-meta {
    font-size: 0.8rem;
    color: var(--color-text-light);
    white-space: nowrap;
    background: var(--color-bg);
    padding: 4px 10px;
    border-radius: 12px;
}

.topic-preview {
    color: var(--color-text-light);
    font-size: 0.92rem;
    margin-bottom: 12px;
    line-height: 1.5;
}

.topic-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: var(--color-text-light);
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

.topic-author strong,
.topic-footer strong {
    color: var(--color-text);
}

.topics-category {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
}

a.topics-category-card {
    width:calc(50% - 6px);
    background: var(--color-primary);
    text-decoration: none;
    color: var(--color-white);
    padding: 15px 10px;
    border-radius: var(--radius);
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 1rem;
}
a.topics-category-card:hover {
    background: var(--color-primary-light);
}

/* --- Topic Detail Page --- */
.back-link {
    display: inline-block;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 500;
}

.back-link:hover {
    color: var(--color-accent);
}

.topic-detail {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 32px;
    border-left: 4px solid var(--color-accent);
}

.topic-detail-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.topic-detail-meta {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.topic-detail-meta strong {
    color: var(--color-text);
}

.topic-detail-body {
    font-size: .9rem;
    line-height: 1.7;
    color: var(--color-text);
}

/* --- Comments --- */
.comments-section h3 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-accent);
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.comment {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.85rem;
}

.comment-author strong {
    color: var(--color-primary);
}

.comment-date {
    color: var(--color-text-light);
    font-size: 0.8rem;
}

.comment-body {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text);
}

/* --- Utility --- */
.hidden {
    display: none;
}

/* --- Comment Replies --- */
.comment-reply {
    border-left: 2px solid var(--color-border);
    background: #fafbfc;
    position: relative;
}

.comment-reply.depth-1 { margin-left: 24px; }
.comment-reply.depth-2 { margin-left: 48px; }
.comment-reply.depth-3 { margin-left: 72px; }
.comment-reply.depth-4 { margin-left: 96px; }
.comment-reply.depth-5 { margin-left: 120px; }

.comment-reply:hover {
    border-left-color: var(--color-accent);
}

.reply-attribution {
    font-size: 0.8rem;
    color: var(--color-text-light);
    font-style: italic;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--color-border);
}

.reply-attribution strong {
    color: var(--color-primary);
    font-style: normal;
}

/* --- Comment Footer & Actions --- */
.comment-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--color-border);
}

.comment-actions {
    display: flex;
    gap: 8px;
}

.btn-action {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 4px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-main);
}

.btn-edit {
    color: var(--color-primary);
}

.btn-edit:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-delete {
    color: var(--color-error);
}

.btn-delete:hover {
    background: var(--color-error);
    color: var(--color-white);
    border-color: var(--color-error);
}

.btn-reply {
    color: var(--color-primary-light);
}

.btn-reply:hover {
    background: var(--color-primary-light);
    color: var(--color-white);
    border-color: var(--color-primary-light);
}

/* --- Edited indicator --- */
.comment-edited {
    font-size: 0.75rem;
    color: var(--color-text-light);
    font-weight: 400;
    font-style: italic;
    margin-left: 6px;
}

/* --- Inline Edit & Reply Forms --- */
.comment-edit-form,
.comment-reply-form {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

.comment-edit-form .form-group,
.comment-reply-form .form-group {
    margin-bottom: 10px;
}

.comment-edit-form .quill-editor,
.comment-reply-form .quill-editor,
.comment-form-container .quill-editor {
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
    font-size: 0.9rem;
    font-family: var(--font-main);
    color: var(--color-text);
    min-height: 80px;
    background: var(--color-white);
    margin-bottom: 12px;
}

.comment-form-container .quill-editor {
    min-height: 120px;
}

/* Quill toolbar styling overrides */
.ql-toolbar.ql-snow {
    border: 1px solid var(--color-border);
    border-radius: var(--radius) var(--radius) 0 0;
    background: var(--color-bg);
}

.ql-container.ql-snow {
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
}

/* Comment body HTML content styling */
.comment-body p {
    margin-bottom: 0.5em;
}

.comment-body p:last-child {
    margin-bottom: 0;
}

.comment-body ul,
.comment-body ol {
    margin-left: 1.5em;
    margin-bottom: 0.5em;
}

.comment-body blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: 12px;
    margin: 0.5em 0;
    color: var(--color-text-light);
    font-style: italic;
}

.comment-body a {
    color: var(--color-primary);
    text-decoration: underline;
}

.comment-body a:hover {
    color: var(--color-accent);
}

.edit-form-actions {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.82rem;
}

.btn-cancel {
    background-color: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-cancel:hover {
    background-color: var(--color-border);
}

/* --- Comment Form --- */
.comment-form-container {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.comment-form-container h4 {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 16px;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--color-text-light);
    font-size: 0.95rem;
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

/* --- Footer --- */
.footer {
    background-color: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    padding: 20px;
    font-size: 0.85rem;
    margin-top: auto;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .navbar {
        padding: 0 16px;
    }

    .container {
        padding: 20px 16px;
    }

    .login-container {
        margin: 20px;
        padding: 32px 24px;
    }

    .topic-header {
        flex-direction: column;
    }

    .topic-detail {
        padding: 20px;
    }

    .topic-detail-meta {
        flex-direction: column;
        gap: 4px;
    }

    .topic-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .nav-user {
        gap: 10px;
    }

    .nav-username {
        display: none;
    }

    .comment-reply {
        margin-left: 12px !important;
    }

    .comment-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .topics-category {
        flex-direction: column;
        align-items: center;
    }
    a.topics-category-card {
        width: 100%;
    }
}