/* CSS Variables - Dark Theme */
:root {
    --bg-primary: #1D1A19;
    --bg-secondary: #2a2625;
    --bg-tertiary: #3a3635;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;
    --accent-orange: #ff4500;
    --accent-gold: #ffd700;
    --accent-red: #ff3b30;
    --accent-green: #34c759;
    --border-color: #404040;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--accent-orange);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Header */
.header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-orange);
}

.logo:hover {
    color: var(--accent-gold);
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 5px;
}

.nav-tab {
    padding: 10px 20px;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-tab:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-tab.active {
    background-color: var(--accent-orange);
    color: var(--text-primary);
}

/* User Area */
.user-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.profile-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.profile-icon {
    font-size: 32px;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.btn-primary:hover {
    background-color: #ff5722;
    color: white;
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.btn-login {
    background-color: var(--accent-orange);
    color: white;
}

.btn-logout {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
}

.btn-danger {
    background-color: var(--accent-red);
    color: white;
}

.btn-danger:hover {
    background-color: #ff2d20;
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    width: 100%;
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Cards */
.card {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-orange);
}

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

textarea.form-input {
    min-height: 150px;
    resize: vertical;
}

select.form-input {
    cursor: pointer;
}

/* Login Page */
.login-container {
    max-width: 400px;
    margin: 60px auto;
}

.login-card {
    background-color: var(--bg-secondary);
    border-radius: 16px;
    padding: 40px;
    border: 1px solid var(--border-color);
}

.login-title {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--accent-orange);
}

.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 30px;
    font-size: 0.9rem;
}

.login-btn {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
}

.error-message {
    background-color: rgba(255, 59, 48, 0.1);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

/* Board List */
.board-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.board-title {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.post-list {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.post-item {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.post-item:last-child {
    border-bottom: none;
}

.post-item:hover {
    background-color: var(--bg-tertiary);
}

.post-category {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    /* Default color */
    background-color: var(--bg-tertiary);
    /* Default bg */
    margin-right: 15px;
    min-width: 50px;
    text-align: center;
    border: 1px solid transparent;
    /* reserved for badges */
}

.badge-NOTICE {
    background-color: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
    border-color: rgba(231, 76, 60, 0.3);
}

.badge-GUIDE {
    background-color: rgba(52, 152, 219, 0.2);
    color: #3498db;
    border-color: rgba(52, 152, 219, 0.3);
}

.badge-QUESTION {
    background-color: rgba(241, 196, 15, 0.2);
    color: #f1c40f;
    border-color: rgba(241, 196, 15, 0.3);
}

.badge-FREE {
    background-color: rgba(149, 165, 166, 0.2);
    color: #95a5a6;
    border-color: rgba(149, 165, 166, 0.3);
}

.post-info {
    flex: 1;
}

.post-title-link {
    color: var(--text-primary);
    font-size: 1rem;
    display: block;
    margin-bottom: 4px;
}

.post-title-link:hover {
    color: var(--accent-orange);
}

.post-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.post-stats {
    display: flex;
    gap: 15px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.post-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.post-stats .like-count {
    color: var(--accent-red);
}

/* Post View */
.post-view-card {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: 30px;
    border: 1px solid var(--border-color);
}

.post-view-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
    margin-bottom: 20px;
}

.post-view-title {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.post-view-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.post-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.post-content {
    line-height: 1.8;
    min-height: 200px;
}

.post-content img {
    max-width: 100%;
    border-radius: 8px;
    margin: 10px 0;
}

.post-content pre {
    background-color: var(--bg-tertiary);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}

.post-content code {
    background-color: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', monospace;
}

.post-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* Like Button */
.like-button {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
    color: var(--text-muted);
    padding: 10px 20px;
    border-radius: 20px;
    transition: all 0.2s;
}

.like-button:hover {
    background-color: rgba(255, 59, 48, 0.1);
}

.like-button.liked {
    color: var(--accent-red);
}

.like-button .heart-icon {
    font-size: 1.3rem;
    transition: transform 0.2s;
}

.like-button.liked .heart-icon {
    animation: heartbeat 0.3s ease-in-out;
}

@keyframes heartbeat {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.3);
    }

    100% {
        transform: scale(1);
    }
}

/* Comments */
.comments-section {
    margin-top: 30px;
}

.comments-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.comment-form {
    margin-bottom: 30px;
}

.comment-input-wrapper {
    display: flex;
    gap: 10px;
}

.comment-input {
    flex: 1;
}

.comment-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.comment-item {
    background-color: var(--bg-tertiary);
    border-radius: 10px;
    padding: 15px;
}

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

.comment-author {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

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

.comment-content {
    line-height: 1.6;
    margin-bottom: 10px;
}

.comment-actions {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
}

.comment-action-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}

.comment-action-btn:hover {
    color: var(--text-primary);
}

.replies {
    margin-left: 30px;
    margin-top: 15px;
    padding-left: 15px;
    border-left: 2px solid var(--border-color);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-top: 30px;
}

.page-link {
    padding: 8px 14px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.page-link:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.page-link.active {
    background-color: var(--accent-orange);
    border-color: var(--accent-orange);
    color: white;
}

/* Profile Page */
.profile-header {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 30px;
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-avatar i {
    font-size: 60px;
    color: var(--text-muted);
}

.profile-info h2 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.profile-info .role-badge {
    background-color: var(--accent-orange);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    display: inline-block;
}

/* Tab Content Pages */
.tab-content {
    min-height: 60vh;
}

.coming-soon {
    text-align: center;
    padding: 100px 20px;
    color: var(--text-muted);
}

.coming-soon i {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--accent-orange);
}

.coming-soon h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        height: auto;
        padding: 10px 0;
        gap: 10px;
    }

    /* Mobile: Logo(1) -> UserArea(2) -> Nav(3) */
    .logo {
        order: 1;
    }

    .user-area {
        order: 2;
        width: 100%;
        justify-content: center;
        /* Center align user controls */
        padding: 0 10px;
        margin-top: 5px;
        margin-bottom: 5px;
    }

    .header-buttons {
        order: 3;
        width: 100%;
        display: flex;
        justify-content: center;
        padding: 5px 0;
    }

    .nav-tab {
        padding: 8px 12px;
        font-size: 0.9rem;
        flex: 1 1 auto;
        justify-content: center;
    }

    .user-area {
        width: 100%;
        justify-content: space-between;
        padding: 0 10px;
        margin-top: 10px;
    }

    .profile-info h2 {
        font-size: 1.5rem;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .profile-info {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .board-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .board-title {
        font-size: 1.3rem;
    }

    .post-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 12px 15px;
    }

    .post-category {
        margin-bottom: 5px;
        align-self: flex-start;
    }

    .post-stats {
        width: 100%;
        justify-content: flex-start;
        font-size: 0.8rem;
        margin-top: 5px;
    }

    .login-container {
        margin: 30px 15px;
    }

    .login-card {
        padding: 20px;
    }

    .main-content {
        padding: 15px;
    }

    .post-view-card {
        padding: 15px;
    }

    .post-view-title {
        font-size: 1.4rem;
    }

    .post-view-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}