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

:root {
    --pink: #EC008C;
    --pink-dark: #C4006F;
    --pink-light: #FF1A9E;
    --cream: #FFFEF5;
    --cream-dark: #F5F4E8;
    --black: #000000;
    --gray: #6B7280;
    --gray-light: #9CA3AF;
    --gray-dark: #4B5563;
    --border: #EC008C;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 10px 40px rgba(236, 0, 140, 0.15);
    --shadow-pink: 0 8px 30px rgba(236, 0, 140, 0.25);
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Helvetica Neue', sans-serif;
    color: var(--black);
    background: var(--cream);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--pink) 0%, var(--pink-dark) 100%);
    color: white;
    padding: 1.5rem 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.5rem;
    color: white;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo svg {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    padding-bottom: 4px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: white;
    transition: width var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover {
    transform: translateY(-1px);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: white;
}

.user-name {
    font-weight: 500;
}

/* Buttons */
.btn {
    padding: 0.625rem 1.5rem;
    border: 2px solid var(--pink);
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    font-size: 0.9375rem;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-smooth), height var(--transition-smooth);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--pink);
    color: white;
    border-color: var(--pink);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--pink-dark);
    border-color: var(--pink-dark);
    box-shadow: var(--shadow-pink);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: white;
    color: var(--pink);
    border-color: var(--pink);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--pink);
    color: white;
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0);
}

/* Main Content */
.main {
    flex: 1;
    padding: 3rem 0;
}

.forum-header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeIn var(--transition-smooth) ease-out;
}

.forum-header h1 {
    font-size: 3rem;
    margin-bottom: 0.75rem;
    color: var(--black);
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--black) 0%, var(--gray-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.forum-header p {
    color: var(--gray);
    font-size: 1.25rem;
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.category-card {
    background: white;
    border: 3px dashed var(--pink);
    border-radius: 1.25rem;
    padding: 2rem;
    transition: all var(--transition);
    text-decoration: none;
    color: var(--black);
    display: block;
    position: relative;
    overflow: hidden;
    animation: fadeIn var(--transition-smooth) ease-out backwards;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(236, 0, 140, 0.03) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition);
}

.category-card:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: var(--shadow-pink);
    border-style: solid;
    border-width: 3px;
}

.category-card:hover::before {
    opacity: 1;
}

.category-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--pink) 0%, var(--pink-dark) 100%);
    border-radius: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 2rem;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.category-card:hover .category-icon {
    transform: rotate(-5deg) scale(1.1);
    box-shadow: var(--shadow-pink);
}

.category-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.625rem;
    color: var(--black);
    font-weight: 700;
    letter-spacing: -0.01em;
    transition: color var(--transition-fast);
}

.category-card:hover h3 {
    color: var(--pink);
}

.category-card p {
    color: var(--gray);
    font-size: 0.9375rem;
    margin-bottom: 1.25rem;
    line-height: 1.6;
}

.category-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--gray-light);
    font-weight: 500;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    font-size: 0.9375rem;
}

.breadcrumb a {
    color: var(--pink);
    text-decoration: none;
    font-weight: 500;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* Category/Thread Pages */
.category-header {
    background: white;
    border: 3px solid var(--pink);
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-header h1 {
    font-size: 2rem;
    margin-bottom: 0.25rem;
}

.category-header p {
    color: var(--gray);
}

/* Threads List */
.threads-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.thread-item {
    background: white;
    border: 2px solid var(--pink);
    border-radius: 1rem;
    padding: 1.75rem;
    text-decoration: none;
    color: var(--black);
    display: block;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    animation: slideIn var(--transition-smooth) ease-out backwards;
}

.thread-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--pink);
    transform: scaleY(0);
    transition: transform var(--transition);
}

.thread-item:hover {
    border-width: 2px;
    border-color: var(--pink);
    transform: translateX(8px);
    box-shadow: var(--shadow);
}

.thread-item:hover::before {
    transform: scaleY(1);
}

.thread-item h3 {
    font-size: 1.375rem;
    margin-bottom: 0.625rem;
    color: var(--black);
    font-weight: 700;
    letter-spacing: -0.01em;
    transition: color var(--transition-fast);
}

.thread-item:hover h3 {
    color: var(--pink);
}

.thread-meta {
    display: flex;
    gap: 1.5rem;
    font-size: 0.875rem;
    color: var(--gray);
    font-weight: 500;
}

.thread-meta span {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

/* Thread Container */
.thread-container {
    background: white;
    border: 3px solid var(--pink);
    border-radius: 1rem;
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.thread-container h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Posts List */
.posts-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.post {
    background: white;
    border: 2px solid var(--pink);
    border-radius: 1rem;
    padding: 1.75rem;
    display: flex;
    gap: 1.75rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    animation: fadeIn var(--transition-smooth) ease-out backwards;
}

.post:hover {
    box-shadow: var(--shadow);
    border-color: var(--pink-light);
}

.post-votes {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 48px;
}

.vote-btn {
    background: white;
    border: 2px solid transparent;
    border-radius: 0.5rem;
    cursor: pointer;
    padding: 0.375rem;
    color: var(--gray);
    transition: all var(--transition-fast);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vote-btn:hover {
    color: var(--pink);
    background: rgba(236, 0, 140, 0.05);
    border-color: var(--pink);
    transform: scale(1.1);
}

.vote-btn.active {
    color: var(--pink);
    background: rgba(236, 0, 140, 0.1);
    border-color: var(--pink);
}

.vote-count {
    font-weight: 700;
    font-size: 1.375rem;
    color: var(--black);
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    background: var(--cream-dark);
    min-width: 40px;
    text-align: center;
}

.post-content {
    flex: 1;
    min-width: 0;
}

.post-author {
    font-weight: 700;
    color: var(--pink);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.post-author:hover {
    color: var(--pink-dark);
}

.post-time {
    color: var(--gray-light);
    font-size: 0.875rem;
    font-weight: 500;
}

.post-text {
    margin-top: 1rem;
    line-height: 1.8;
    white-space: pre-wrap;
    color: var(--gray-dark);
    font-size: 1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.625rem;
    font-weight: 700;
    color: var(--black);
    font-size: 0.9375rem;
    letter-spacing: -0.01em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--pink);
    border-radius: 0.75rem;
    font-family: inherit;
    font-size: 1rem;
    background: white;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.form-group input:hover,
.form-group textarea:hover {
    border-color: var(--pink-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--pink);
    box-shadow: 0 0 0 4px rgba(236, 0, 140, 0.1), var(--shadow);
    transform: translateY(-1px);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn var(--transition) ease-out;
}

.modal-content {
    background: white;
    border: 3px solid var(--pink);
    border-radius: 1.25rem;
    padding: 2.5rem;
    max-width: 600px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    animation: fadeIn var(--transition-smooth) ease-out;
    transform-origin: center;
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--black);
    font-weight: 800;
    font-size: 1.875rem;
    letter-spacing: -0.02em;
}

/* Reply Section */
#replySection {
    background: white;
    border: 3px dashed var(--pink);
    border-radius: 1rem;
    padding: 2rem;
}

#replySection h3 {
    margin-bottom: 1rem;
    color: var(--black);
}

/* Footer */
.footer {
    background: var(--black);
    color: white;
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

.footer .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.footer-section h3 {
    color: white;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--pink);
    padding-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--pink);
}

.feedback-btn {
    background: var(--pink);
    color: white;
    border: 2px solid var(--pink);
    border-radius: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    font-size: 0.9375rem;
    margin-top: 0.5rem;
    width: 100%;
    text-align: center;
}

.feedback-btn:hover {
    background: var(--pink-dark);
    border-color: var(--pink-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-pink);
}

/* Loading States */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--gray);
    font-weight: 500;
    font-size: 1.125rem;
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--cream-dark) 0%,
        #FFFEF5 50%,
        var(--cream-dark) 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite linear;
    border-radius: 0.5rem;
}

.skeleton-card {
    background: white;
    border: 3px dashed var(--pink);
    border-radius: 1.25rem;
    padding: 2rem;
    opacity: 0.6;
}

.skeleton-line {
    height: 20px;
    margin-bottom: 1rem;
}

.skeleton-line.short {
    width: 60%;
}

.skeleton-line.medium {
    width: 80%;
}

.skeleton-icon {
    width: 64px;
    height: 64px;
    border-radius: 1.25rem;
    margin-bottom: 1.25rem;
}

.skeleton-title {
    height: 28px;
    width: 70%;
    margin-bottom: 0.75rem;
}

/* Responsive */
@media (max-width: 768px) {
    .forum-header h1 {
        font-size: 2.25rem;
    }

    .forum-header p {
        font-size: 1.0625rem;
    }

    .header-content {
        flex-wrap: wrap;
    }

    .nav {
        order: 3;
        width: 100%;
        margin-top: 1rem;
        justify-content: center;
        gap: 1.5rem;
    }

    .categories-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .category-card {
        padding: 1.75rem;
    }

    .category-card:hover {
        transform: translateY(-4px) scale(1);
    }

    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.25rem;
        padding: 1.75rem;
    }

    .thread-item {
        padding: 1.5rem;
    }

    .thread-item:hover {
        transform: translateX(4px);
    }

    .post {
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.25rem;
    }

    .post-votes {
        flex-direction: row;
        justify-content: center;
        min-width: auto;
    }

    .footer .container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .modal-content {
        padding: 2rem;
        width: 95%;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .form-actions {
        flex-direction: column-reverse;
    }

    .form-actions .btn {
        width: 100%;
    }
}

/* Additional Polish */
.breadcrumb {
    animation: slideIn var(--transition-smooth) ease-out;
}

.category-header {
    animation: fadeIn var(--transition-smooth) ease-out;
}

.thread-item:nth-child(1) { animation-delay: 0.05s; }
.thread-item:nth-child(2) { animation-delay: 0.1s; }
.thread-item:nth-child(3) { animation-delay: 0.15s; }
.thread-item:nth-child(4) { animation-delay: 0.2s; }
.thread-item:nth-child(5) { animation-delay: 0.25s; }

.post:nth-child(1) { animation-delay: 0.05s; }
.post:nth-child(2) { animation-delay: 0.1s; }
.post:nth-child(3) { animation-delay: 0.15s; }
.post:nth-child(4) { animation-delay: 0.2s; }
.post:nth-child(5) { animation-delay: 0.25s; }

.category-card:nth-child(1) { animation-delay: 0.05s; }
.category-card:nth-child(2) { animation-delay: 0.1s; }
.category-card:nth-child(3) { animation-delay: 0.15s; }
.category-card:nth-child(4) { animation-delay: 0.2s; }
.category-card:nth-child(5) { animation-delay: 0.25s; }
.category-card:nth-child(6) { animation-delay: 0.3s; }
.category-card:nth-child(7) { animation-delay: 0.35s; }
.category-card:nth-child(8) { animation-delay: 0.4s; }

/* Scroll Behavior */
html {
    scroll-behavior: smooth;
}

/* Selection Style */
::selection {
    background: var(--pink);
    color: white;
}

::-moz-selection {
    background: var(--pink);
    color: white;
}