/* ============================================
   FIRESIDE CIRCLE — Design System
   Warm, dark, ember-accented UI
   ============================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --ember: #E8683A;
    --ember-light: #F4A261;
    --ember-dark: #C4522A;
    --night: #1A1118;
    --warm-dark: #2D1F2B;
    --warm-mid: #3D2B3A;
    --warm-light: #4D3B4A;
    --cream: #FFF5EB;
    --cream-muted: #E8D5C4;
    --cream-dim: #A8958A;
    --glow: rgba(232, 104, 58, 0.15);
    --glow-strong: rgba(232, 104, 58, 0.25);
    --success: #4CAF50;
    --error: #E8443A;
    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.2s ease;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--night);
    color: var(--cream);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

h1, h2, h3, h4 {
    font-family: 'Syne', sans-serif;
    line-height: 1.2;
}

a {
    color: var(--ember);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--ember-light);
}

/* ---- NAVIGATION ---- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(26, 17, 24, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--warm-mid);
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-brand {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--cream);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.nav-ember {
    color: var(--ember);
    font-size: 0.6rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    font-size: 0.9rem;
    color: var(--cream-muted);
    transition: color var(--transition);
    font-weight: 400;
}

.nav-link:hover { color: var(--cream); }

.nav-link-muted {
    color: var(--cream-dim);
    font-size: 0.85rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--cream-muted);
    border-radius: 1px;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--warm-dark);
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1rem;
        border-bottom: 1px solid var(--warm-mid);
    }
    .nav-links.open { display: flex; }
}

/* ---- BUTTONS ---- */
.btn-ember {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--ember);
    color: var(--cream);
    font-family: 'Syne', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.7rem 1.8rem;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-ember:hover {
    background: var(--ember-dark);
    color: var(--cream);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--glow-strong);
}

.btn-sm {
    padding: 0.4rem 1.2rem;
    font-size: 0.8rem;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--cream-muted);
    font-family: 'Syne', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.7rem 1.8rem;
    border-radius: var(--radius);
    border: 1px solid var(--warm-mid);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-ghost:hover {
    border-color: var(--ember);
    color: var(--cream);
}

.btn-danger {
    background: var(--error);
}

.btn-danger:hover {
    background: #c63830;
}

/* ---- FLASH MESSAGES ---- */
.flash {
    max-width: 600px;
    margin: 1rem auto;
    padding: 0.8rem 1.2rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}

.flash-success {
    background: rgba(76, 175, 80, 0.15);
    border: 1px solid rgba(76, 175, 80, 0.3);
    color: #8BC34A;
}

.flash-error {
    background: rgba(232, 68, 58, 0.15);
    border: 1px solid rgba(232, 68, 58, 0.3);
    color: #FF7043;
}

.flash-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 0.3rem;
    opacity: 0.7;
}

.flash-close:hover { opacity: 1; }

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

/* ---- PAGE LAYOUT ---- */
.page {
    padding-top: 80px;
    min-height: 100vh;
}

.page-header {
    padding: 3rem 2rem 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.page-header h1 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--cream-muted);
    font-weight: 300;
    font-size: 1.05rem;
}

.page-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

/* ---- FORMS ---- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-family: 'Syne', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--cream-muted);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius);
    color: var(--cream);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    transition: border-color var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--ember);
    box-shadow: 0 0 0 3px var(--glow);
}

.form-input::placeholder {
    color: var(--cream-dim);
}

textarea.form-input {
    min-height: 140px;
    resize: vertical;
    line-height: 1.6;
}

.form-select {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius);
    color: var(--cream);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23E8D5C4' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.form-select:focus {
    border-color: var(--ember);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--ember);
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-top: 2rem;
}

/* ---- AUTH PAGES ---- */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    position: relative;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.auth-card h1 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
}

.auth-card .auth-sub {
    color: var(--cream-muted);
    font-weight: 300;
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--cream-dim);
}

/* ---- DISCUSSION CARDS ---- */
.discussion-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.discussion-card {
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: all var(--transition);
    display: block;
    color: var(--cream);
}

.discussion-card:hover {
    border-color: var(--warm-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    color: var(--cream);
}

.discussion-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.discussion-card .discussion-excerpt {
    color: var(--cream-muted);
    font-weight: 300;
    font-size: 0.9rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.discussion-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.8rem;
    font-size: 0.8rem;
    color: var(--cream-dim);
}

.discussion-meta .category-tag {
    background: var(--warm-mid);
    padding: 0.15rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--ember-light);
}

.discussion-meta .reply-count {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* ---- CATEGORY FILTER ---- */
.category-filter {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.category-btn {
    padding: 0.35rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-family: 'DM Sans', sans-serif;
    border: 1px solid var(--warm-mid);
    background: transparent;
    color: var(--cream-muted);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.category-btn:hover,
.category-btn.active {
    background: var(--ember);
    border-color: var(--ember);
    color: var(--cream);
}

/* ---- DISCUSSION DETAIL ---- */
.discussion-detail {
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.discussion-detail h1 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
}

.discussion-detail .discussion-body {
    color: var(--cream-muted);
    font-weight: 300;
    line-height: 1.8;
    margin-top: 1.5rem;
    white-space: pre-wrap;
}

.reply-section {
    margin-top: 2rem;
}

.reply-section h3 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--cream-muted);
    font-weight: 600;
}

.reply-card {
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius);
    padding: 1.2rem 1.5rem;
    margin-bottom: 0.5rem;
}

.reply-card .reply-body {
    color: var(--cream-muted);
    font-weight: 300;
    font-size: 0.95rem;
    white-space: pre-wrap;
    line-height: 1.6;
}

.reply-card .reply-meta {
    margin-top: 0.6rem;
    font-size: 0.8rem;
    color: var(--cream-dim);
}

.reply-form {
    margin-top: 1.5rem;
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius);
    padding: 1.5rem;
}

/* ---- ARTICLES ---- */
.article-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.article-card {
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition);
    display: block;
    color: var(--cream);
}

.article-card:hover {
    border-color: var(--warm-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
    color: var(--cream);
}

.article-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.article-card .article-excerpt {
    color: var(--cream-muted);
    font-weight: 300;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.article-card .article-meta {
    font-size: 0.8rem;
    color: var(--cream-dim);
}

/* Article detail */
.article-detail {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

.article-detail h1 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.article-detail .article-author {
    color: var(--cream-dim);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--warm-mid);
}

.article-detail .article-content {
    color: var(--cream-muted);
    font-weight: 300;
    font-size: 1.05rem;
    line-height: 1.9;
    white-space: pre-wrap;
}

/* ---- ADMIN ---- */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th {
    font-family: 'Syne', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--cream-dim);
    text-align: left;
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--warm-mid);
}

.admin-table td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--warm-mid);
    font-size: 0.9rem;
    color: var(--cream-muted);
}

.admin-table tr:hover td {
    background: rgba(255,255,255,0.02);
}

.status-badge {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-published {
    background: rgba(76, 175, 80, 0.15);
    color: #8BC34A;
}

.status-draft {
    background: rgba(168, 149, 138, 0.15);
    color: var(--cream-dim);
}

.admin-actions {
    display: flex;
    gap: 0.5rem;
}

.admin-actions a,
.admin-actions button {
    font-size: 0.8rem;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
}

/* ---- PROFILE ---- */
.profile-card {
    background: var(--warm-dark);
    border: 1px solid var(--warm-mid);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    max-width: 500px;
}

/* ---- EMPTY STATE ---- */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--cream-dim);
}

.empty-state h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--cream-muted);
}

.empty-state p {
    font-weight: 300;
    margin-bottom: 1.5rem;
}

/* ---- FOOTER ---- */
.site-footer {
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid var(--warm-mid);
    margin-top: 4rem;
}

.footer-inner p {
    font-size: 0.8rem;
    color: var(--cream-muted);
    opacity: 0.5;
}

.footer-ember {
    color: var(--ember);
}

/* ---- UTILITIES ---- */
.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.text-muted { color: var(--cream-dim); }
.text-ember { color: var(--ember); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

@media (max-width: 768px) {
    .page-header { padding: 2rem 1.5rem 1.5rem; }
    .page-content { padding: 0 1.5rem 3rem; }
    .discussion-detail { padding: 1.5rem; }
    .auth-card { padding: 2rem 1.5rem; }
    .article-detail { padding: 0 1.5rem 3rem; }
}