/* MusicLink PWA Styles */
:root {
    --primary-color: #1db954;
    --primary-hover: #1ed760;
    --secondary-color: #ff6b35;
    --spotify-color: #1db954;
    --apple-color: #fa243c;
    --deezer-color: #ef5466;
    --youtube-color: #ff0000;
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --surface-hover: #282828;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #727272;
    --border-color: #333333;
    --error-color: #ff4444;
    --success-color: #00c851;
    --warning-color: #ffbb33;

    --nav-height: 60px;
    --border-radius: 8px;
    --border-radius-large: 16px;
    --transition: all 0.2s ease;
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-strong: 0 8px 24px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    padding-bottom: 70px;
    /* Space for mobile nav */
}

/* Layout */
.app-container {
    max-width: 600px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(18, 18, 18, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-content {
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    white-space: nowrap;
}

.nav-item:hover,
.nav-item.active {
    color: var(--text-primary);
}

.nav-badge {
    margin-left: 6px;
    padding: 2px 6px;
    border-radius: 999px;
    background: var(--secondary-color);
    color: #ffffff;
    font-size: 0.7rem;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
}

.nav-badge--mobile {
    position: absolute;
    top: 6px;
    right: 18px;
    margin-left: 0;
}

.mobile-nav-item {
    position: relative;
}

/* Search */
.search-container {
    position: relative;
    width: 240px;
    margin: 0 20px;
    display: none;
    /* Hidden by default, shown via JS when authenticated */
    flex-shrink: 0;
}

.search-input {
    width: 100%;
    padding: 10px 18px;
    border-radius: 25px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-color);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 8px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-strong);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
}

.search-result-item {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: var(--surface-hover);
}

.search-user-info {
    flex: 1;
}

.search-username {
    font-weight: 600;
    font-size: 0.9rem;
}

.search-display-name {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.search-no-results {
    padding: 15px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.user-avatar.small {
    width: 32px;
    height: 32px;
    font-size: 1rem;
}

/* Mobile Bottom Nav */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    display: none;
    /* Hidden by default on desktop */
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.7rem;
    padding: 8px;
    width: 100%;
}

.mobile-nav-item.active {
    color: var(--primary-color);
}

.nav-icon {
    font-size: 1.2rem;
}

/* Pages */
.page {
    display: none;
    padding: 80px 20px 20px;
    /* Top padding for navbar */
    animation: fadeIn 0.3s ease;
}

.page.active {
    display: block;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 20px;
}

.page-title {
    font-size: 1.4rem;
    font-weight: 700;
}

.notifications-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.notification-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

.notification-item:hover {
    background: var(--surface-hover);
    transform: translateY(-1px);
}

.notification-unread {
    border-color: rgba(29, 185, 84, 0.4);
    box-shadow: 0 0 0 1px rgba(29, 185, 84, 0.2);
}

.notification-avatar {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-primary);
}

.notification-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.notification-message {
    font-size: 0.95rem;
}

.notification-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.empty-state,
.error-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem 1rem;
}

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

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

/* Auth Forms */
.auth-container {
    max-width: 400px;
    margin: 40px auto;
    padding: 30px;
    background: var(--surface-color);
    border-radius: var(--border-radius-large);
    border: 1px solid var(--border-color);
    text-align: center;
}

.auth-title {
    font-size: 2rem;
    margin-bottom: 10px;
}

.auth-subtitle {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 12px;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.auth-footer {
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}

/* Feed & Posts */
.feed-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.post-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}

.post-header {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.post-info {
    flex: 1;
}

.post-author {
    font-weight: 600;
    font-size: 0.95rem;
}

.post-time {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.post-content {
    padding: 16px;
}

.post-caption {
    margin-bottom: 16px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.track-preview {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.track-icon {
    font-size: 2rem;
}

.track-details h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.track-details p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.platform-links-mini {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.platform-chip {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    text-decoration: none;
    color: white;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.platform-chip:hover {
    transform: translateY(-1px);
    opacity: 0.9;
}

.chip-spotify {
    background: var(--spotify-color);
    color: black;
}

.chip-apple {
    background: var(--apple-color);
}

.chip-deezer {
    background: var(--deezer-color);
}

.chip-youtube {
    background: var(--youtube-color);
}

.post-actions {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 20px;
}

.action-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.action-btn:hover {
    color: var(--text-primary);
}

.action-btn.delete-btn:hover {
    color: var(--error-color);
}

/* FAB (Floating Action Button) */
.fab {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    box-shadow: var(--shadow-strong);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 900;
}

/* Feed Tabs */
.feed-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.feed-tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--border-radius);
}

.feed-tab.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.feed-tab:hover {
    color: var(--text-primary);
}

/* Follow Button */
.follow-btn {
    font-size: 0.8rem;
    padding: 0.3rem 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    margin-left: auto;
}

.follow-btn.following {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

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

.like-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.like-btn.liked {
    color: #ff4b4b;
    background: rgba(255, 75, 75, 0.1);
    border-color: rgba(255, 75, 75, 0.3);
}

.fab:hover {
    transform: scale(1.1);
    background: var(--primary-hover);
}

/* Create Post Page */
.create-post-form {
    background: var(--surface-color);
    padding: 20px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* Utilities */
.hidden {
    display: none !important;
}

.error-message {
    background: rgba(255, 68, 68, 0.1);
    color: var(--error-color);
    padding: 10px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    font-size: 0.9rem;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        display: none;
        /* Use mobile nav instead */
    }

    .mobile-nav {
        display: flex;
    }

    .page {
        padding: 20px 15px 80px;
        /* Adjust padding for mobile nav */
    }

    .app-container {
        max-width: 100%;
    }

    .fab {
        bottom: 80px;
    }
}

/* Search Page (Mobile) */
.search-page-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.search-input-wrapper {
    position: sticky;
    top: 0;
    background: var(--background-color);
    padding-bottom: 10px;
    z-index: 10;
}

.search-page-input {
    border-radius: 25px;
    padding: 12px 20px;
    font-size: 1rem;
    background: var(--surface-color);
}

.search-results-list {
    display: flex;
    flex-direction: column;
}

.search-placeholder {
    text-align: center;
    color: var(--text-secondary);
    margin-top: 40px;
}

/* Profile Page */
.profile-header-container {
    background: var(--surface-color);
    padding: 30px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.profile-header {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.profile-avatar-large {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: bold;
    color: white;
    flex-shrink: 0;
    overflow: hidden;
}

.profile-avatar-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-info {
    flex: 1;
}

.profile-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.profile-top h2 {
    margin: 0;
    font-size: 1.8rem;
}

.profile-username {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.profile-bio {
    margin-bottom: 20px;
    line-height: 1.5;
    white-space: pre-wrap;
}

.profile-stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.stat-item:hover .stat-value {
    color: var(--primary-color);
}

.stat-value {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Users List Modal */
.users-list-container {
    max-height: 400px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.users-list-container .search-result-item {
    padding: 15px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--surface-color);
    padding: 30px;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    border: 1px solid var(--border-color);
    position: relative;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.close-modal {
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--text-primary);
}

.settings-modal-content {
    max-width: 420px;
    padding: 24px;
}

.settings-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

.settings-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.settings-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    box-shadow: var(--shadow-soft);
}

.settings-item:hover {
    background: var(--surface-hover);
    transform: translateY(-1px);
}

.settings-icon {
    font-size: 1.1rem;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
}

.settings-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.settings-title {
    font-weight: 600;
}

.settings-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.settings-danger {
    color: var(--error-color);
    border-color: rgba(255, 68, 68, 0.35);
}

.settings-danger .settings-icon {
    background: rgba(255, 68, 68, 0.15);
}

@media (max-width: 768px) {
    .profile-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .profile-top {
        flex-direction: column;
        gap: 15px;
    }

    .profile-stats {
        justify-content: center;
        gap: 20px;
    }

    .profile-avatar-large {
        width: 100px;
        height: 100px;
        font-size: 3rem;
    }
}

/* Modal Extras */
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.confirm-message {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-danger {
    background: var(--error-color);
    width: auto;
    padding: 10px 20px;
}

.btn-danger:hover {
    background: #ff2222;
}

/* Comments */
.comments-section {
    border-top: 1px solid var(--border-color);
    background: var(--background-color);
    padding: 0;
    display: none;
    animation: fadeIn 0.2s ease;
}

.comments-section.active {
    display: block;
}

.comments-list {
    padding: 10px 16px;
    max-height: 300px;
    overflow-y: auto;
}

.comment-item {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.comment-highlight .comment-content {
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.15), 0 0 0 4px rgba(29, 185, 84, 0.2);
    background: linear-gradient(120deg, rgba(29, 185, 84, 0.12), rgba(255, 255, 255, 0.02));
}

.comment-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
    cursor: pointer;
}

.comment-content {
    flex: 1;
    background: var(--surface-color);
    padding: 8px 12px;
    border-radius: 12px;
    border-top-left-radius: 2px;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 2px;
}

.comment-author {
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    color: var(--text-primary);
}

.comment-time {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.comment-text {
    color: var(--text-primary);
    word-break: break-word;
    line-height: 1.4;
}

.comment-input-container {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    align-items: center;
    background: var(--surface-color);
}

.comment-input {
    flex: 1;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.comment-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.comment-submit-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    padding: 4px 8px;
}

.comment-submit-btn:disabled {
    color: var(--text-muted);
    cursor: not-allowed;
}

.delete-comment-btn {
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    opacity: 0.6;
    transition: var(--transition);
    margin-left: 8px;
}

.delete-comment-btn:hover {
    opacity: 1;
    color: var(--error-color);
}