:root {
    --primary: #e74c3c;
    --primary-hover: #c0392b;
    --accent: #2ecc71;
    --accent-hover: #27ae60;
    --bg: #f4f6f8;
    --card-bg: #ffffff;
    --text: #1a1a2e;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --upvote: #2ecc71;
    --downvote: #e74c3c;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.08), 0 4px 6px rgba(0, 0, 0, 0.04);
    --radius: 12px;
    --radius-sm: 8px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 16px;
}

h1 {
    text-align: center;
    margin-bottom: 32px;
    color: var(--text);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

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

/* Navbar */
.navbar {
    background-color: #ffffff;
    padding: 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.navbar-container {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 16px;
    height: 60px;
}

.navbar-logo {
    color: var(--primary);
    font-size: 1.35rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: -0.03em;
}

.navbar-logo:hover {
    color: var(--primary-hover);
}

.navbar-menu {
    list-style-type: none;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.navbar-menu li {
    margin: 0;
}

.navbar-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.navbar-menu a:hover {
    color: var(--text);
    background-color: var(--border-light);
}

@media (max-width: 768px) {
    .navbar-container {
        height: auto;
        padding: 12px 16px;
        flex-direction: column;
        gap: 8px;
    }

    .navbar-menu {
        width: 100%;
        justify-content: center;
    }
}

/* Messages */
.messages {
    max-width: 960px;
    margin: 16px auto;
    padding: 0 16px;
}

.message {
    padding: 12px 16px;
    margin-bottom: 8px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

.message.success {
    background-color: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.message.error {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

/* Voting */
.vote-button {
    background: none;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: var(--text-muted);
    transition: all 0.15s;
    line-height: 1;
}

.vote-button:hover {
    background-color: var(--border-light);
}

.vote-up:hover,
.vote-up.voted {
    color: var(--upvote);
    background-color: #ecfdf5;
    border-color: #a7f3d0;
}

.vote-down:hover,
.vote-down.voted {
    color: var(--downvote);
    background-color: #fef2f2;
    border-color: #fecaca;
}

.vote-count {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text);
    text-align: center;
    padding: 2px 0;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
    padding: 16px 0;
}

.pagination-link {
    display: inline-block;
    padding: 8px 18px;
    background-color: var(--card-bg, #fff);
    border: 1px solid var(--border, #e5e7eb);
    border-radius: var(--radius-sm, 8px);
    color: var(--primary, #e74c3c);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.15s;
}

.pagination-link:hover {
    background-color: var(--primary, #e74c3c);
    color: #fff;
    border-color: var(--primary, #e74c3c);
}

.pagination-info {
    font-size: 0.9rem;
    color: var(--text-secondary, #6b7280);
    font-weight: 500;
}

.user-reputation {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: #2ecc71;
    color: var(--accent, #2ecc71);
    background-color: rgba(46, 204, 113, 0.1);
    padding: 1px 6px;
    border-radius: 10px;
    vertical-align: middle;
}