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

:root {
    --color-primary: #ff6b6b;
    --color-primary-dark: #ee5a52;
    --color-primary-light: #ff8787;

    --color-accent: #4ecdc4;
    --color-accent-dark: #45b8b0;

    --color-like: #ff6b9d;
    --color-like-light: rgba(255, 107, 157, 0.15);

    --color-success: #51cf66;
    --color-warning: #ffd93d;

    --color-bg-primary: #1a1a2e;
    --color-bg-secondary: #16213e;
    --color-bg-card: #0f3460;
    --color-bg-hover: #1a4d7a;
    --color-bg-input: #16213e;

    --color-text-primary: #eee;
    --color-text-secondary: #c5c6c7;
    --color-text-muted: #8892a6;

    --color-border: #2d3561;
    --color-border-light: #3d4975;
    --color-shadow: rgba(0, 0, 0, 0.3);
    --color-shadow-glow: rgba(11, 112, 195, 0.308);

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.25rem;
    --radius-full: 9999px;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, var(--color-bg-primary) 0%, #0f1419 100%);
    color: var(--color-text-primary);
    line-height: 1.65;
    min-height: 100vh;
}

.container {
    max-width: 680px;
    margin: 0 auto;
    padding: var(--spacing-md);
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #0f4c81, #175992, #1bb3a6);

    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px var(--color-shadow-glow);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: headerGlow 8s ease-in-out infinite;
}

@keyframes headerGlow {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(-20px, -20px);
    }
}

.header-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.logo {
    font-size: 1.85rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: #ffffff;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.tagline {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 400;
}

.header-stats {
    display: flex;
    gap: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.stat-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.85rem;
    color: #ffffff;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.create-post-section {
    margin-bottom: var(--spacing-lg);
}

.create-post-card {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 16px var(--color-shadow);
    transition: all var(--transition-normal);
}

.create-post-card:hover {
    box-shadow: 0 8px 24px var(--color-shadow);
    border-color: var(--color-border-light);
}

.create-post-card h2 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    font-weight: 600;
}

.create-post-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg-input);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    transition: all var(--transition-fast);
    line-height: 1.6;
}

.create-post-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.2);
    background: var(--color-bg-secondary);
}

.create-post-form textarea::placeholder {
    color: var(--color-text-muted);
}

.form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-md);
}

.char-counter {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.char-counter.warning {
    color: var(--color-warning);
    font-weight: 600;
}

.char-counter.danger {
    color: var(--color-like);
    font-weight: 700;
}

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-post,
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-icon {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.btn-post {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.btn-post:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

.btn-post:active:not(:disabled) {
    transform: translateY(0);
}

.btn-post:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text-secondary);
    border: 2px solid var(--color-border);
}

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

.btn-danger {
    background: transparent;
    color: var(--color-like);
    border: 2px solid var(--color-like);
}

.btn-danger:hover {
    background: var(--color-like-light);
}

.btn-icon {
    background: transparent;
    color: var(--color-text-muted);
    padding: var(--spacing-xs);
    font-size: 1.1rem;
}

.btn-icon:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-hover);
}

.feed-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.sort-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sort-controls label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.sort-controls select {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg-input);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
}

.feed-stats {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.feed-section {
    margin-bottom: var(--spacing-xl);
}

.feed-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    font-weight: 600;
}

.posts-feed {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.post-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px var(--color-shadow);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.post-card:hover {
    box-shadow: 0 8px 24px var(--color-shadow);
    transform: translateY(-3px);
    border-color: var(--color-border-light);
}

.post-card.liked {
    border-color: var(--color-like);
    box-shadow: 0 4px 16px var(--color-shadow), 0 0 20px rgba(255, 107, 157, 0.15);
}

.post-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.post-meta {
    flex: 1;
}

.post-author {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.post-timestamp {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.post-actions-menu {
    display: flex;
    gap: var(--spacing-xs);
}

.post-content {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    word-wrap: break-word;
    white-space: pre-wrap;
}

.post-footer {
    display: flex;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.post-action {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
    font-weight: 500;
}

.post-action:hover {
    background: var(--color-bg-hover);
    color: var(--color-accent);
    transform: scale(1.05);
}

.post-action.liked {
    color: var(--color-like);
}

.post-action.liked:hover {
    background: var(--color-like-light);
}

.post-action-icon {
    font-size: 1.2rem;
}

.post-action-count {
    font-weight: 600;
}

.comments-section {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }

    to {
        opacity: 1;
        max-height: 500px;
    }
}

.comments-section.hidden {
    display: none;
}

.comment-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.comment-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-input);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.comment-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.2);
}

.comment-submit {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.comment-submit:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.3);
}

.comment-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.comment-item {
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    animation: slideIn 0.3s ease;
    border: 1px solid var(--color-border);
}

.comment-author {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.comment-text {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    word-wrap: break-word;
    line-height: 1.6;
}

.comment-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

.post-edit-form {
    margin-bottom: var(--spacing-sm);
}

.post-edit-textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg-input);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    margin-bottom: var(--spacing-sm);
}

.edit-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

.empty-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.4;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.empty-state p {
    font-size: 1rem;
}

.hidden {
    display: none !important;
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }

    .header {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }

    .feed-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }

    .feed-stats {
        justify-content: center;
    }

    .post-footer {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }

    .post-action {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}