body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: linear-gradient(180deg, #f5f8ff 0%, #edf3ff 45%, #fbfcff 100%);
    color: #1f2a48;
}

* {
    box-sizing: border-box;
}

.feed-page {
    max-width: 1240px;
    margin: 0 auto;
    padding: 2rem 1.25rem 4rem;
}

.feed-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feed-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.brand-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-mark {
    width: 56px;
    height: 56px;
    display: grid;
    place-items: center;
    border-radius: 18px;
    font-weight: 800;
    font-size: 1.15rem;
    color: white;
    background: linear-gradient(135deg, #ffb347 0%, #ffcc33 100%);
}

.brand-copy {
    display: grid;
    gap: 0.25rem;
}

.brand-label {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: #10172d;
}

.brand-tagline {
    margin: 0;
    font-size: 0.85rem;
    color: #5c6a8a;
}

.page-header h1 {
    margin: 0;
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1.05;
}

.tagline {
    margin: 0.35rem 0 0;
    color: #586783;
    max-width: 600px;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    padding: 1rem 0 0;
    border-top: 1px solid rgba(23, 47, 92, 0.08);
}

.site-nav a,
.nav-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.1rem;
    border-radius: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.site-nav a {
    color: #2b4367;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(43, 67, 103, 0.12);
}

.site-nav a:hover,
.nav-button:hover {
    background: #eef3ff;
    border-color: #dbe4ff;
    transform: translateY(-1px);
}

.feed-nav a,
.nav-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.1rem;
    border-radius: 14px;
    border: 1px solid transparent;
    font-size: 0.95rem;
    color: #30416a;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.9);
    transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.feed-nav a:hover {
    background: #eef3ff;
    border-color: #dbe4ff;
    transform: translateY(-1px);
}

.nav-button {
    border: none;
    cursor: pointer;
    color: #fff;
    min-width: 100px;
}

.login_button {
    color: white;
    background: #4f73ff;
    border-color: rgba(79, 115, 255, 0.2);
}

.login_button:hover {
    background: #3853d9;
}

.logout_button {
    color: white;
    background: #ff6b6b;
    border-color: rgba(255, 107, 107, 0.2);
}

.logout_button:hover {
    background: #e24949;
}

.feed-layout {
    max-width: 1240px;
    margin: 0 auto 3rem;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(280px, 1fr);
    gap: 1.5rem;
}

.feed-main {
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(280px, 1fr);
    gap: 1.5rem;
    padding: 0 0 4rem;
}

.feed-panel {
    display: grid;
    gap: 1.5rem;
}

.feed-headline {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    padding: 1.75rem;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(56, 82, 136, 0.08);
    box-shadow: 0 24px 60px rgba(23, 47, 92, 0.1);
}

.feed-headline h2 {
    margin: 0;
    font-size: 1.75rem;
    color: #10172d;
}

.search-form {
    display: flex;
    gap: 0.75rem;
    width: min(100%, 360px);
}

.search-form input {
    flex: 1;
    padding: 0.95rem 1rem;
    border-radius: 14px;
    border: 1px solid #d3dbea;
    outline: none;
    font-size: 1rem;
    color: #16223c;
}

.search-form button {
    padding: 0.95rem 1.2rem;
    border-radius: 14px;
    border: none;
    background: #4f73ff;
    color: white;
    font-weight: 700;
    cursor: pointer;
}

.posts-list {
    display: grid;
    gap: 1.5rem;
}

.post-card {
    margin-top: 5px;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 16px;
    border: 1px solid rgba(56, 82, 136, 0.08);
    box-shadow: 0 24px 60px rgba(23, 47, 92, 0.1);
    overflow: hidden;
}

.post-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem 1.75rem 0;
}

.post-author {
    margin: 5px 0 0;
    font-size: 1.05rem;
    font-weight: 700;
    color: #10172d;
}

.post-timestamp {
    margin: 0.35rem 0 0;
    color: #5c6a8a;
    font-size: 0.9rem;
}

.post-content {
    padding: 0 1.75rem 1.25rem;
    color: #2a3657;
    line-height: 1.75;
}

.post-media {
    display: block;
    width: 100%;
    max-height: 420px;
    border-radius: 22px;
    margin-top: 1rem;
    object-fit: cover;
}

.post-interactions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    padding: 0 1.75rem 1rem;
}

.like-button,
.comment-button {
    border-radius: 999px;
    border: none;
    padding: 0.8rem 1.2rem;
    font-weight: 700;
    cursor: pointer;
}

.like-button {
    background: #4f73ff;
    color: white;
}

.comment-button {
    background: #007bff;
    color: white;
}

.like-button:hover,
.comment-button:hover {
    opacity: 0.95;
}

.like-count,
.interaction-label {
    color: #5c6a8a;
    font-weight: 600;
}

.comments-panel {
    padding: 0 1.75rem 1.5rem;
    border-top: 1px solid rgba(23, 47, 92, 0.08);
}

.comments-panel h3 {
    margin: 0 0 0.85rem;
    font-size: 1rem;
    color: #223156;
}

.comment-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.65rem;
}

.comment-list li {
    padding: 0.85rem 1rem;
    border-radius: 16px;
    background: #f6f8ff;
    color: #324066;
}

.comment-author {
    font-weight: 700;
    margin-right: 0.35rem;
}

.comment-form {
    margin-top: 1rem;
    display: grid;
    gap: 0.75rem;
}

.comment-form textarea {
    width: 100%;
    min-height: 96px;
    border-radius: 18px;
    border: 1px solid #d3dbea;
    padding: 1rem;
    resize: vertical;
    font-family: inherit;
    color: #17233d;
}

.post-footer {
    padding: 0 1.75rem 1.5rem;
}

.post-actions {
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.secondary-link {
    color: #4f73ff;
    text-decoration: none;
    font-weight: 700;
}

.secondary-link:hover {
    text-decoration: underline;
}

.empty-state {
    padding: 1.5rem;
    border-radius: 24px;
    background: #eff4ff;
    text-align: center;
    color: #4f608c;
    border: 1px solid rgba(79, 115, 255, 0.12);
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem 0 0;
    color: #4b5d7a;
}

.pagination-link {
    color: #4f73ff;
    text-decoration: none;
    font-weight: 700;
}

.pagination-link:hover {
    text-decoration: underline;
}

.feed-sidebar {
    display: grid;
    gap: 1.5rem;
    align-self: start;
}

.sidebar-card {
    background: rgba(255, 255, 255, 0.96);
    border-radius: 24px;
    border: 1px solid rgba(23, 47, 92, 0.08);
    box-shadow: 0 20px 50px rgba(23, 47, 92, 0.08);
    padding: 1.75rem;
}

.sidebar-card h2 {
    margin: 0 0 1rem;
    font-size: 1.1rem;
}

.sidebar-card p,
.sidebar-card ul {
    margin: 0;
    color: #4b5d7a;
    line-height: 1.7;
}

.sidebar-card ul {
    list-style: none;
    padding: 0;
    display: grid;
    gap: 0.7rem;
}

.sidebar-card li {
    padding: 0.85rem 1rem;
    background: #f5f8ff;
    border-radius: 16px;
}

@media (max-width: 1024px) {
    .feed-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .feed-page {
        padding: 0;
    }

    .feed-header {
        padding: 0.75rem 1rem;
    }

    .feed-nav {
        top: 100px; /* Adjusted for mobile header height */
        padding: 0.75rem 1rem;
    }

    .feed-main {
        margin-top: 170px; /* Adjusted for mobile spacing */
        padding: 0 1rem 2rem;
    }

    .feed-nav {
        justify-content: flex-start;
    }

    .feed-intro {
        flex-direction: column;
        align-items: stretch;
    }
}