/* ========================================
   NANDI NET - Modern Social Media Platform
   Mobile First Design
   ======================================== */

/* CSS Variables - Nandi County Colors */
:root {
    --primary: #006B5E;
    --primary-dark: #005045;
    --primary-light: #E0F2F0;
    --secondary: #F5A623;
    --secondary-dark: #E09612;
    --danger: #E53935;
    --danger-light: #FFEBEE;
    --success: #4CAF50;
    --warning: #FF9800;
    --info: #2196F3;
    --dark: #212121;
    --dark-gray: #424242;
    --gray: #757575;
    --light-gray: #BDBDBD;
    --border: #E0E0E0;
    --background: #F8F9FA;
    --white: #FFFFFF;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-round: 50%;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--background);
    color: var(--dark);
    line-height: 1.4;
    font-size: 15px;
}

/* App Container */
.app-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    min-height: 100vh;
    position: relative;
    box-shadow: 0 0 20px rgba(0,0,0,0.05);
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.app-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 12px var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
}

.logo h1 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo h1 i {
    font-size: 1.2rem;
    margin-right: 6px;
    color: var(--secondary);
}

.logo span {
    font-size: 0.65rem;
    opacity: 0.9;
    display: block;
    margin-top: 2px;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    display: flex;
    justify-content: space-around;
    padding: 8px 0 12px;
    border-top: 1px solid var(--border);
    z-index: 100;
    backdrop-filter: blur(20px);
    background: rgba(255,255,255,0.95);
}

.nav-item {
    text-align: center;
    color: var(--gray);
    text-decoration: none;
    font-size: 0.7rem;
    padding: 4px var(--spacing-md);
    transition: all 0.2s ease;
    border-radius: var(--radius-lg);
}

.nav-item i {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 2px;
}

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

.nav-item:active {
    transform: scale(0.95);
}

/* ========================================
   POST CARD - Modern Social Media Style
   ======================================== */

.post-card {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-md);
    transition: background 0.2s ease;
}

.post-card:active {
    background: var(--background);
}

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

.avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-round);
    object-fit: cover;
    border: 2px solid var(--primary-light);
}

.avatar-placeholder {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-round);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.2rem;
}

.post-meta {
    flex: 1;
}

.post-author {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.post-verified {
    background: var(--primary);
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: var(--radius-lg);
}

.post-handle {
    font-size: 0.75rem;
    color: var(--gray);
}

.post-time {
    font-size: 0.7rem;
    color: var(--light-gray);
}

.post-content {
    margin-bottom: var(--spacing-md);
    margin-left: 56px;
}

.post-content p {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
    word-wrap: break-word;
}

/* Media Content */
.post-media {
    margin-top: var(--spacing-sm);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    background: var(--background);
}

.post-media img,
.post-media video {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    display: block;
}

.post-media-video {
    position: relative;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
}

/* Hashtags & Topics */
.post-hashtags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.hashtag {
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
}

/* Post Actions */
.post-actions {
    display: flex;
    gap: var(--spacing-xl);
    margin-left: 56px;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border);
}

.action-btn {
    background: none;
    border: none;
    color: var(--gray);
    font-size: 0.85rem;
    padding: 6px var(--spacing-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.action-btn i {
    font-size: 1.2rem;
}

.action-btn:hover {
    background: var(--background);
}

.action-btn:active {
    transform: scale(0.95);
}

.action-btn.liked {
    color: var(--danger);
}

.action-btn.bookmarked {
    color: var(--secondary);
}

/* ========================================
   CREATE POST SECTION
   ======================================== */

.create-post {
    background: var(--white);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: var(--spacing-md);
    cursor: pointer;
    transition: background 0.2s;
}

.create-post:active {
    background: var(--background);
}

.create-post-input {
    flex: 1;
    background: var(--background);
    border: none;
    border-radius: var(--radius-xl);
    padding: 12px var(--spacing-lg);
    font-size: 0.95rem;
    color: var(--gray);
    cursor: pointer;
}

/* ========================================
   TABS
   ======================================== */

.tabs {
    display: flex;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}

.tabs::-webkit-scrollbar {
    display: none;
}

.tab {
    flex: 0 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

/* ========================================
   LOAD MORE BUTTON
   ======================================== */

.load-more {
    text-align: center;
    padding: var(--spacing-xl);
}

.load-more-btn {
    background: var(--background);
    border: 1px solid var(--border);
    padding: 10px var(--spacing-xl);
    border-radius: var(--radius-xl);
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.load-more-btn:active {
    transform: scale(0.97);
    background: var(--primary-light);
}

/* ========================================
   MODAL & FORMS
   ======================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--white);
    width: 90%;
    max-width: 500px;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-height: 80vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h3 {
    margin-bottom: var(--spacing-lg);
    font-size: 1.3rem;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px var(--spacing-md);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border: none;
    padding: 12px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    width: 100%;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--white);
    border: none;
    padding: 10px var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
}

/* ========================================
   COMMENTS SECTION
   ======================================== */

.comments-section {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border);
}

.comment {
    background: var(--background);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.comment strong {
    color: var(--primary);
    font-size: 0.85rem;
}

.comment p {
    font-size: 0.85rem;
    margin: 4px 0;
}

.comment small {
    font-size: 0.7rem;
    color: var(--gray);
}

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

.comment-input input {
    flex: 1;
    padding: 10px var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
}

.comment-input button {
    padding: 10px var(--spacing-lg);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    cursor: pointer;
}

/* ========================================
   PROFILE PAGE
   ======================================== */

.profile-header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: var(--spacing-xl);
    text-align: center;
    color: white;
}

.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-round);
    border: 4px solid white;
    margin-bottom: var(--spacing-md);
    object-fit: cover;
}

.profile-stats {
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-lg);
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--gray);
}

.profile-tabs {
    display: flex;
    background: var(--white);
}

/* ========================================
   SEARCH PAGE
   ======================================== */

.search-header {
    background: var(--white);
    padding: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: 99;
    border-bottom: 1px solid var(--border);
}

.search-input {
    width: 100%;
    padding: 12px var(--spacing-lg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-xl);
    font-size: 1rem;
    background: var(--background);
}

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

.search-tabs {
    display: flex;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

.search-tab {
    flex: 1;
    padding: var(--spacing-md);
    text-align: center;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--gray);
    transition: all 0.2s;
}

.search-tab.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

.user-result {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
    background: var(--white);
}

.user-result:hover {
    background: var(--background);
}

.follow-btn {
    margin-left: auto;
    padding: 6px 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-xl);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.follow-btn:active {
    transform: scale(0.95);
}

/* ========================================
   NOTIFICATIONS
   ======================================== */

.notification {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
    background: var(--white);
}

.notification.unread {
    background: var(--primary-light);
}

.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-round);
    background: var(--background);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

/* ========================================
   ALERTS & MESSAGES
   ======================================== */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background: #E8F5E9;
    color: var(--success);
    border-left: 4px solid var(--success);
}

.alert-error {
    background: var(--danger-light);
    color: var(--danger);
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: #FFF3E0;
    color: var(--warning);
    border-left: 4px solid var(--warning);
}

/* ========================================
   MODERATION PANEL
   ======================================== */

.moderation-container {
    padding: var(--spacing-md);
}

.pending-post {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.mod-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.btn-approve {
    background: var(--success);
    color: white;
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
}

.btn-reject {
    background: var(--warning);
    color: white;
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
}

.btn-delete {
    background: var(--danger);
    color: white;
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
}

/* ========================================
   UTILITIES
   ======================================== */

.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-danger { color: var(--danger); }
.text-gray { color: var(--gray); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }

.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */

@media (min-width: 600px) {
    .app-container {
        margin: 0 auto;
        box-shadow: 0 0 20px rgba(0,0,0,0.1);
    }
    
    .bottom-nav {
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    }
}

@media (max-width: 480px) {
    .post-actions {
        gap: var(--spacing-md);
    }
    
    .action-btn span {
        font-size: 0.75rem;
    }
    
    .post-content {
        margin-left: 48px;
    }
}

/* Loading States */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.skeleton {
    background: linear-gradient(90deg, var(--border) 25%, var(--background) 50%, var(--border) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* Pull to Refresh */
.pull-to-refresh {
    text-align: center;
    padding: var(--spacing-md);
    color: var(--gray);
    font-size: 0.8rem;
}

/* Image Gallery Viewer */
.image-viewer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: black;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-viewer img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    z-index: 2000;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state p {
    font-size: 0.9rem;
}