@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;800&display=swap');

:root {
    --bg-dark: #050505;
    --bg-sidebar: rgba(255, 255, 255, 0.02);
    --bg-card: rgba(255, 255, 255, 0.04);
    --surface: #121214;
    --surface-hover: #1c1c1f;
    --surface-border: rgba(255, 255, 255, 0.08);
    --accent-blue: #00D2FF;
    --accent-purple: #9D50BB;
    --accent-pink: #F04297;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.06);
    --gradient-primary: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    --shadow-main: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: #050505 !important;
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at top right, rgba(157, 80, 187, 0.1), transparent 50%), 
        radial-gradient(circle at bottom left, rgba(0, 210, 255, 0.08), transparent 50%) !important;
    background-attachment: fixed;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .logo-text {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    letter-spacing: -0.5px;
}

/* Auth Pages Style */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    position: relative;
    padding: 20px;
}

.auth-card {
    width: 100%;
    max-width: 450px;
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.logo-area {
    text-align: center;
    margin-bottom: 30px;
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -2px;
}

.slogan {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

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

.form-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 16px;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.1);
}

.btn-primary {
    width: 100%;
    background: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
    border: none;
    border-radius: 99px;
    padding: 14px;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.auth-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
}

/* Feed Layout & Components */
.layout-container {
    display: grid;
    grid-template-columns: 240px 1fr 310px;
    gap: 30px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
}

.sidebar {
    height: 100vh;
    position: sticky;
    top: 0;
    padding: 30px 10px;
    border-right: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.01);
    backdrop-filter: blur(10px);
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 14px 18px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.nav-link i {
    margin-right: 16px;
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
    transition: transform 0.3s ease;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-link:hover i {
    transform: scale(1.1);
    color: var(--accent-blue);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.nav-link.active i {
    color: var(--accent-blue);
}

.main-feed {
    padding: 20px 0;
}

.composer-card, .post-card, .trending-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 24px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.composer-card:focus-within {
    border-color: rgba(0, 210, 255, 0.3);
}

.post-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.composer-input {
    width: 100%;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.1rem;
    padding: 10px 0;
    resize: none;
    margin-bottom: 5px;
    font-family: inherit;
}

.composer-input:focus {
    outline: none;
}

.composer-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--glass-border);
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.post-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.post-user-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

.post-user-info span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.post-content {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.post-media {
    border-radius: 12px;
    width: 100%;
    max-height: 520px;
    object-fit: cover;
    margin-bottom: 15px;
    border: 1px solid var(--surface-border);
}

.post-footer {
    display: flex;
    gap: 24px;
    padding-top: 15px;
    border-top: 1px solid var(--surface-border);
}

.post-action {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s;
}

.post-action:hover {
    color: var(--accent-blue);
}

/* Stories Bar */
.stories-bar {
    display: flex;
    gap: 16px;
    padding-bottom: 20px;
    overflow-x: auto;
}

.story-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.story-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(45deg, var(--accent-pink), var(--accent-purple), var(--accent-blue));
}

.story-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid var(--bg-dark);
    background: #1a1a1a;
    overflow: hidden;
}

.story-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.story-name {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Sidebar Trending */
.trending-sidebar {
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.trending-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 16px;
    padding: 20px;
}

.trend-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.trend-item {
    margin-bottom: 12px;
}

.trend-category {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.trend-name {
    font-size: 0.9rem;
    font-weight: 600;
    margin: 2px 0;
}

.trend-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.feed-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    gap: 15px;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255, 255, 255, 0.05);
    border-top: 3px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}