/* ==========================================================================
   Texting - Exact Twitter / X Theme (Pure Light Mode & Dark Mode System)
   ========================================================================== */

/* 1. LIGHT MODE (Twitter Crisp White with Dominant Red Accent) */
:root, html[data-bs-theme="light"] {
    --x-bg: #ffffff;
    --x-card-bg: #ffffff;
    --x-elevated-bg: #fdfafb;
    --x-hover-bg: rgba(244, 33, 46, 0.06);
    --x-border: #f0e6e8;
    --x-border-strong: #e5d3d6;
    --x-text-main: #0f1419;
    --x-text-secondary: #5c5355;
    --x-text-muted: #756a6d;
    --x-blue: #f4212e;
    --x-blue-hover: #d81023;
    --x-blue-bg: rgba(244, 33, 46, 0.1);
    --x-green: #00ba7c;
    --x-green-bg: rgba(0, 186, 124, 0.1);
    --x-pink: #f4212e;
    --x-pink-bg: rgba(244, 33, 46, 0.1);
    --x-yellow: #f59e0b;
    --x-input-bg: #ffffff;
    --x-dropdown-bg: #ffffff;
    --x-shadow: 0 4px 20px rgba(244, 33, 46, 0.08);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* 2. DARK MODE (Twitter Lights Out with Dominant Red Accent) */
html[data-bs-theme="dark"] {
    --x-bg: #000000;
    --x-card-bg: #000000;
    --x-elevated-bg: #181214;
    --x-hover-bg: rgba(244, 33, 46, 0.1);
    --x-border: #332427;
    --x-border-strong: #473236;
    --x-text-main: #f7f5f5;
    --x-text-secondary: #8c7e81;
    --x-text-muted: #8c7e81;
    --x-blue: #f4212e;
    --x-blue-hover: #d81023;
    --x-blue-bg: rgba(244, 33, 46, 0.15);
    --x-green: #00ba7c;
    --x-green-bg: rgba(0, 186, 124, 0.12);
    --x-pink: #f4212e;
    --x-pink-bg: rgba(244, 33, 46, 0.15);
    --x-yellow: #ffd400;
    --x-input-bg: #120c0d;
    --x-dropdown-bg: #000000;
    --x-shadow: 0 4px 20px rgba(244, 33, 46, 0.12);
}

/* Base Body Styles */
body {
    background-color: var(--x-bg) !important;
    color: var(--x-text-main) !important;
    font-family: var(--font-family) !important;
    font-size: 15px;
    line-height: 1.45;
    overflow-x: hidden;
    transition: background-color 0.15s ease, color 0.15s ease;
}

/* Typography & Links */
a {
    color: var(--x-blue);
    text-decoration: none;
    transition: color 0.15s ease;
}
a:hover {
    text-decoration: underline;
    color: var(--x-blue-hover);
}

.text-muted, .text-secondary {
    color: var(--x-text-secondary) !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--x-bg);
}
::-webkit-scrollbar-thumb {
    background: #cfd9de;
    border-radius: 4px;
}
html[data-bs-theme="dark"] ::-webkit-scrollbar-thumb {
    background: #333639;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Button Twitter Style */
.btn-primary {
    background-color: var(--x-blue) !important;
    border-color: var(--x-blue) !important;
    color: #ffffff !important;
    font-weight: 700;
    border-radius: 9999px;
    padding: 8px 18px;
    transition: background-color 0.15s ease, transform 0.1s ease;
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--x-blue-hover) !important;
    border-color: var(--x-blue-hover) !important;
}
.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-outline-primary {
    color: var(--x-blue) !important;
    border-color: var(--x-blue) !important;
    border-radius: 9999px;
}
.btn-outline-primary:hover {
    background-color: var(--x-blue-bg) !important;
    color: var(--x-blue) !important;
}

.btn-outline-secondary {
    color: var(--x-text-main) !important;
    border-color: var(--x-border-strong) !important;
    border-radius: 9999px;
}
.btn-outline-secondary:hover {
    background-color: var(--x-hover-bg) !important;
}

/* Layout Containers */
.main-wrapper {
    min-height: 100vh;
}

.left-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    border-right: 1px solid var(--x-border);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 12px 16px;
    z-index: 100;
    background-color: var(--x-bg);
}

.center-feed {
    border-right: 1px solid var(--x-border);
    min-height: 100vh;
    padding: 0;
    background-color: var(--x-bg);
}

.right-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    padding: 12px 20px;
    background-color: var(--x-bg);
}

/* Brand Logo */
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--x-text-main) !important;
    font-weight: 800;
    font-size: 1.45rem;
    padding: 10px 14px;
    border-radius: 9999px;
    transition: background-color 0.2s ease;
}
.brand-logo i {
    color: var(--x-blue) !important;
}
.brand-logo:hover {
    background-color: var(--x-hover-bg);
    text-decoration: none;
}

/* Navigation Links */
.nav-pill-custom {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 18px;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--x-text-main);
    border-radius: 9999px;
    transition: background-color 0.15s ease, color 0.15s ease;
    margin-bottom: 4px;
}
.nav-pill-custom i {
    font-size: 1.4rem;
    width: 28px;
    text-align: center;
    color: inherit;
}
.nav-pill-custom:hover {
    background-color: var(--x-hover-bg);
    text-decoration: none;
    color: var(--x-text-main);
}
.nav-pill-custom.active {
    font-weight: 800;
}

/* Theme Toggle Button in Sidebar */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 18px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--x-text-main);
    border-radius: 9999px;
    background: transparent;
    border: 1px solid var(--x-border);
    cursor: pointer;
    transition: all 0.15s ease;
    margin-top: 6px;
    margin-bottom: 8px;
    width: 100%;
}
.theme-toggle-btn:hover {
    background-color: var(--x-hover-bg);
    border-color: var(--x-blue);
    color: var(--x-blue);
}

/* Sticky Header Tabs */
.sticky-tabs-header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--x-border);
    z-index: 90;
}

html[data-bs-theme="dark"] .sticky-tabs-header {
    background: rgba(0, 0, 0, 0.8);
}

.feed-tabs {
    display: flex;
    width: 100%;
}

.feed-tab-btn {
    flex: 1;
    text-align: center;
    background: transparent;
    border: none;
    color: var(--x-text-secondary);
    font-weight: 600;
    font-size: 0.98rem;
    padding: 16px 8px;
    position: relative;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.feed-tab-btn:hover {
    background-color: var(--x-hover-bg);
    color: var(--x-text-main);
}

.feed-tab-btn.active {
    color: var(--x-text-main);
    font-weight: 800;
}

.feed-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--x-blue);
    border-radius: 4px;
}

/* Post Composer Box */
.post-composer-box {
    padding: 16px;
    border-bottom: 1px solid var(--x-border);
    background-color: var(--x-bg);
}

.composer-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
}

.composer-textarea {
    background: transparent;
    border: none;
    color: var(--x-text-main) !important;
    font-size: 1.15rem;
    line-height: 1.4;
    resize: none;
    width: 100%;
    outline: none;
    min-height: 60px;
}

.composer-textarea::placeholder {
    color: var(--x-text-secondary);
}

.composer-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--x-border);
    margin-top: 8px;
}

/* Character Counter & Circular SVG Ring */
.char-progress-wrapper {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.progress-ring {
    transform: rotate(-90deg);
}

.progress-ring-circle-bg {
    stroke: var(--x-border);
}

.progress-ring-circle {
    stroke: var(--x-blue);
    stroke-linecap: round;
    transition: stroke-dashoffset 0.1s linear, stroke 0.2s ease;
}

.char-number {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--x-text-secondary);
}

.char-number.warn {
    color: var(--x-yellow);
}

.char-number.danger {
    color: var(--x-pink);
}

/* Post Cards */
.post-card {
    padding: 16px;
    border-bottom: 1px solid var(--x-border);
    transition: background-color 0.15s ease;
    cursor: pointer;
    background-color: var(--x-bg);
}

.post-card:hover {
    background-color: var(--x-hover-bg);
}

.post-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
}

.post-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.author-name {
    font-weight: 700;
    color: var(--x-text-main) !important;
    margin-right: 4px;
}
.author-name:hover {
    text-decoration: underline;
}

.author-handle, .post-time, .post-dot {
    color: var(--x-text-secondary);
    font-size: 0.9rem;
}

.post-time-link {
    text-decoration: none !important;
}
.post-time-link:hover .post-time {
    text-decoration: underline !important;
    color: var(--x-blue) !important;
}

/* Clickable post body — wraps the content text, navigates to thread */
.post-body-link {
    display: block;
    text-decoration: none !important;
    color: inherit !important;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.15s;
}
.post-body-link:hover {
    background: var(--x-hover-bg);
}

.badge-admin {
    background-color: var(--x-blue-bg);
    color: var(--x-blue);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 4px;
}

.badge-edited {
    color: var(--x-text-secondary);
    font-size: 0.75rem;
    font-style: italic;
    margin-left: 6px;
    background: var(--x-hover-bg);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--x-border);
}

.post-content-text {
    color: var(--x-text-main);
    font-size: 0.98rem;
    line-height: 1.48;
    word-break: break-word;
    margin-bottom: 10px;
    white-space: pre-line;
}

.post-url {
    color: var(--x-blue);
    word-break: break-all;
    display: inline-flex;
    align-items: center;
    gap: 3px;
}
.post-url:hover {
    text-decoration: underline;
}

.post-hashtag {
    color: var(--x-blue);
    font-weight: 600;
}

.post-mention {
    color: var(--x-blue);
    font-weight: 600;
}

/* Post Action Buttons */
.post-actions {
    display: flex;
    justify-content: space-between;
    max-width: 440px;
    margin-top: 8px;
}

.action-btn {
    background: transparent;
    border: none;
    color: var(--x-text-secondary);
    font-size: 0.88rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 9999px;
    transition: all 0.15s ease;
    cursor: pointer;
}

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

.action-btn.reply:hover {
    color: var(--x-blue);
    background-color: var(--x-blue-bg);
}

.action-btn.repost:hover, .action-btn.repost.active {
    color: var(--x-green);
}
.action-btn.repost:hover {
    background-color: var(--x-green-bg);
}

.action-btn.like:hover, .action-btn.like.active {
    color: var(--x-pink);
}
.action-btn.like:hover {
    background-color: var(--x-pink-bg);
}

/* Profile Banner & Header (Twitter Style) */
.profile-banner-container {
    height: 190px;
    width: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    border-bottom: 1px solid var(--x-border);
}

.profile-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.35) 100%);
}

.profile-avatar-row {
    margin-top: -65px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding: 0 16px;
    margin-bottom: 12px;
    position: relative;
    z-index: 10;
}

.profile-main-avatar {
    width: 124px;
    height: 124px;
    border-radius: 50%;
    border: 4px solid var(--x-bg) !important;
    background-color: var(--x-bg);
    object-fit: cover;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
}

@media (max-width: 768px) {
    .profile-banner-container {
        height: 130px;
    }
    .profile-avatar-row {
        margin-top: -46px;
        padding: 0 12px;
    }
    .profile-main-avatar {
        width: 86px;
        height: 86px;
    }
}

/* Right Sidebar Widgets */
.sidebar-widget {
    background-color: var(--x-elevated-bg);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 16px;
    border: 1px solid var(--x-border);
}

.widget-title {
    font-size: 1.15rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--x-text-main);
}

.trend-item {
    padding: 10px 0;
    border-bottom: 1px solid var(--x-border);
    transition: opacity 0.15s ease;
    display: block;
    color: inherit;
}
.trend-item:last-child {
    border-bottom: none;
}
.trend-item:hover {
    text-decoration: none;
    opacity: 0.85;
}

.trend-tag {
    font-weight: 700;
    font-size: 0.98rem;
    color: var(--x-text-main);
}

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

.user-suggestion-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
}

/* Forms & Inputs */
.form-control, .form-select {
    background-color: var(--x-input-bg) !important;
    color: var(--x-text-main) !important;
    border: 1px solid var(--x-border-strong) !important;
    border-radius: 12px;
}
.form-control:focus, .form-select:focus {
    border-color: var(--x-blue) !important;
    box-shadow: 0 0 0 3px var(--x-blue-bg) !important;
    color: var(--x-text-main) !important;
    background-color: var(--x-input-bg) !important;
}

/* Cards & Modals */
.card {
    background-color: var(--x-card-bg) !important;
    border: 1px solid var(--x-border) !important;
    color: var(--x-text-main) !important;
    border-radius: 16px;
}

.modal-content, .modal-content-custom {
    background-color: var(--x-card-bg) !important;
    border: 1px solid var(--x-border) !important;
    border-radius: 16px;
    color: var(--x-text-main) !important;
    box-shadow: var(--x-shadow) !important;
}

.modal-header, .modal-header-custom {
    border-bottom: 1px solid var(--x-border) !important;
    padding: 14px 18px;
}

.modal-footer, .modal-footer-custom {
    border-top: 1px solid var(--x-border) !important;
    padding: 12px 18px;
}

/* Dropdown Menus */
.dropdown-menu {
    background-color: var(--x-dropdown-bg) !important;
    border: 1px solid var(--x-border) !important;
    color: var(--x-text-main) !important;
    border-radius: 14px;
    box-shadow: var(--x-shadow) !important;
    padding: 6px;
}
.dropdown-item {
    color: var(--x-text-main) !important;
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.92rem;
}
.dropdown-item:hover {
    background-color: var(--x-hover-bg) !important;
}
.dropdown-divider {
    border-color: var(--x-border) !important;
}

/* Tables */
.table {
    color: var(--x-text-main) !important;
    border-color: var(--x-border) !important;
}
.table > :not(caption) > * > * {
    background-color: transparent !important;
    color: var(--x-text-main) !important;
    border-bottom-color: var(--x-border) !important;
}

/* Mobile Top App Header (Twitter Style) */
.mobile-top-header {
    background-color: var(--x-bg) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1010;
    height: 52px;
}

.btn-upgrade-top {
    font-size: 0.78rem !important;
    padding: 4px 12px !important;
    font-weight: 700 !important;
}

/* User Profile Offcanvas Drawer (Twitter Style) */
.user-profile-drawer {
    background-color: var(--x-bg) !important;
    color: var(--x-text-main) !important;
    width: 290px !important;
    border-right: 1px solid var(--x-border) !important;
}

.drawer-nav-item {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    border-radius: 12px;
    color: var(--x-text-main) !important;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none !important;
    transition: background 0.15s ease, color 0.15s ease;
}

.drawer-nav-item:hover {
    background-color: var(--x-hover-bg);
    color: var(--x-blue) !important;
}

/* Floating Toast */
.toast-container-custom {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
}
.toast-custom {
    background: var(--x-blue);
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.92rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    animation: toastFadeIn 0.25s ease-out;
}

@keyframes toastFadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* PWA Smart Install Banner */
.pwa-install-banner {
    position: fixed;
    bottom: 60px;
    left: 12px;
    right: 12px;
    background: var(--x-elevated-bg);
    border: 1px solid var(--x-blue);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    border-radius: 16px;
    padding: 12px 16px;
    z-index: 1000;
    animation: pwaSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes pwaSlideUp {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Mobile Floating Action Button (FAB) */
.mobile-fab-post {
    position: fixed;
    bottom: 74px;
    right: 18px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--x-blue);
    color: #ffffff !important;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 18px rgba(29, 155, 240, 0.4);
    z-index: 99;
    transition: transform 0.15s ease, background-color 0.15s ease;
    text-decoration: none !important;
}
.mobile-fab-post:hover, .mobile-fab-post:active {
    transform: scale(1.08);
    background-color: var(--x-blue-hover);
}

/* Mobile Bottom Navigation (Twitter App Style) */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--x-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--x-border);
    padding: 10px 16px;
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
    z-index: 98;
}

.nav-item-mobile {
    color: var(--x-text-secondary);
    font-size: 1.45rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 9999px;
    transition: all 0.15s ease;
}

.nav-item-mobile.active, .nav-item-mobile:hover {
    color: var(--x-blue) !important;
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .left-sidebar {
        display: none !important;
    }
    .right-sidebar {
        display: none !important;
    }
    .mobile-bottom-nav {
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
    .center-feed {
        border-right: none;
        padding-bottom: 80px;
    }
    .post-composer-box {
        padding: 12px;
    }
    .post-card {
        padding: 12px 14px;
    }
}