/* =========================================
   BASE & THEMES
   ========================================= */

html {
    scroll-behavior: smooth;
}

/* Light Mode (Monaco Pearl) */
:root {
    --bg-color: #FAF9F6; 
    --bg-secondary: #F0EEE4;
    --text-main: #1A1A1A;
    --text-muted: #5C5A56;
    --accent: #B89768;
    --accent-rgb: 184, 151, 104; /* For glowing organic halos */
    --border-color: rgba(26, 26, 26, 0.1);
    --floral-opacity: 0.04;
    --card-bg: rgba(250, 249, 246, 0.7);
    --like-color: #D2042D;
    --repost-color: #2E8B57;
    
    /* Spacing System */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    /* Border Radius - Refined for "Quiet Luxury" */
    --radius-sm: 8px;   /* Softer inputs & buttons */
    --radius-md: 14px;  /* Reply cards & imagery */
    --radius-lg: 20px;  /* Post cards & compose boxes */
}

/* Dark Mode (Midnight Onyx) */
[data-theme="dark"] {
    --bg-color: #0A0A0A;
    --bg-secondary: #121212;
    --text-main: #F0EFEA;
    --text-muted: #A3A098;
    --accent: #D4AF37;
    --accent-rgb: 212, 175, 55;
    --border-color: rgba(240, 239, 234, 0.1);
    --floral-opacity: 0.03;
    --card-bg: rgba(18, 18, 18, 0.7);
}

/* Viscous text selection */
::selection {
    background-color: rgba(var(--accent-rgb), 0.25);
    color: var(--text-main);
    text-shadow: 0 0 8px rgba(var(--accent-rgb), 0.4);
}
::-moz-selection {
    background-color: rgba(var(--accent-rgb), 0.25);
    color: var(--text-main);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.6s ease, color 0.6s ease, border-color 0.6s ease, box-shadow 0.3s ease;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Montserrat', sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Biological "Breathing" Environment */
@keyframes ambientBreathe {
    0%, 100% { transform: scale(1); opacity: var(--floral-opacity); }
    50% { transform: scale(1.05); opacity: calc(var(--floral-opacity) + 0.02); }
}

body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M50 0C55 15 65 25 80 25C65 25 55 35 50 50C45 35 35 25 20 25C35 25 45 15 50 0ZM50 50C55 65 65 75 80 75C65 75 55 85 50 100C45 85 35 75 20 75C35 75 45 65 50 50Z' fill='%23888888' fill-opacity='1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: var(--floral-opacity);
    z-index: -1;
    pointer-events: none;
    animation: ambientBreathe 18s ease-in-out infinite; 
}

h1, h2, h3, .display-name {
    font-family: 'Playfair Display', serif;
    font-weight: 400;
}

a { color: var(--text-main); text-decoration: none; }
a:hover { color: var(--accent); }

/* --- Utility Classes --- */
.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-start { display: flex; align-items: flex-start; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.text-sm { font-size: 0.8rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--text-muted); }
.text-uppercase { text-transform: uppercase; letter-spacing: 1px; }
.text-center { text-align: center; }
.w-100 { width: 100%; }

/* --- Navigation --- */
nav.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 5%; 
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--card-bg);
}

.logo { 
    font-family: 'Bitcount Prop Double', sans-serif; 
    font-size: 2.4rem; 
    font-weight: 400;
    text-transform: lowercase; 
    line-height: 1;
    display: inline-block;
}
.nav-right { display: flex; align-items: center; gap: 2.5rem; }
.nav-links { display: flex; gap: 2rem; align-items: center;}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 6px;
    position: relative;
}

/* Animated Nav Links */
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -4px;
    left: 50%;
    background-color: var(--accent);
    transition: width 0.3s ease, left 0.3s ease;
    transform: translateX(-50%);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }

.theme-toggle {
    cursor: pointer; background: transparent; border: 1px solid var(--border-color);
    color: var(--text-main); padding: 0.5rem 1rem; border-radius: var(--radius-sm);
    font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase;
    transition: all 0.3s ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

/* Bottom Nav (Mobile Only) */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    z-index: 1000;
    justify-content: space-around;
    align-items: center;
    padding-top: 0.8rem; 
    padding-bottom: calc(0.8rem + env(safe-area-inset-bottom, 0px));
}
.bottom-nav a { color: var(--text-muted); display: flex; flex-direction: column; align-items: center; position: relative; padding: 0.5rem; }
.bottom-nav a.active { color: var(--text-main); }
.bottom-nav svg { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 1.5; }

/* Notification Badges */
@keyframes badgePulse {
    0% { box-shadow: 0 0 0 0 rgba(210, 4, 45, 0.6); }
    70% { box-shadow: 0 0 0 6px rgba(210, 4, 45, 0); }
    100% { box-shadow: 0 0 0 0 rgba(210, 4, 45, 0); }
}

.badge {
    background: var(--like-color); color: white;
    font-size: 0.65rem; font-weight: bold; border-radius: 50px;
    min-width: 18px; height: 18px; display: inline-flex; align-items: center; justify-content: center; padding: 0 5px;
    line-height: 1; letter-spacing: 0;
    animation: badgePulse 2s infinite;
}
.nav-links .badge { position: static; margin-left: 2px; }
.bottom-nav .badge { position: absolute; top: 0px; right: 10px; margin: 0; }

/* --- Social App Container --- */
.app-container { width: 100%; max-width: 880px; margin: 0 auto; padding: 3rem 1rem; flex: 1; }

/* --- Avatars --- */
.avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border-color); flex-shrink: 0;}
.avatar-sm { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border-color); flex-shrink: 0;}
.avatar-xs { width: 20px; height: 20px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border-color); flex-shrink: 0;}
.avatar-lg { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border-color); flex-shrink: 0;}

/* Viscous "Squishy" Avatars */
.avatar, .avatar-sm, .avatar-xs, .avatar-lg {
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                border-radius 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                box-shadow 0.5s ease;
}

.post-author:hover .avatar, .post-author:hover .avatar-sm, .profile-header .avatar-lg:hover {
    transform: scale(1.08);
    border-radius: 35%; 
    box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.25);
}

/* --- Form Elements Standardization --- */
input[type="text"], input[type="number"], input[type="email"], input[type="datetime-local"], select, textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s ease;
    box-sizing: border-box;
}

/* Organic Halo on Input Focus */
input[type="text"]:focus, input[type="number"]:focus, input[type="email"]:focus, input[type="datetime-local"]:focus, select:focus, textarea:focus {
    border-color: var(--accent);
    transform: translateY(-1px);
    box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.15), 0 6px 16px rgba(var(--accent-rgb), 0.08);
}

textarea { resize: vertical; min-height: 120px; line-height: 1.6; }

/* Compose View Specific Textarea Override - Redesigned for elegance */
.compose-textarea {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02) !important;
    padding: 1.25rem 1.5rem !important;
    font-size: 1rem !important;
    min-height: 120px;
    margin-bottom: 0.5rem;
    transform: none !important;
    transition: border-color 0.4s ease, background-color 0.4s ease, box-shadow 0.4s ease !important;
}
.compose-textarea:focus { 
    background: var(--bg-color) !important;
    border-color: var(--accent) !important; 
    box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.1) !important; 
    transform: none !important; 
}

/* Waitlist Landing Override */
.form-container input {
    background: transparent; border: none; padding: 0.5rem 0; border-radius: 0;
}
.form-container input:focus { border: none; box-shadow: none; transform: none; }

/* Search Nav Input Override */
input[type="text"].search-input {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-sm);
    width: 200px;
    font-size: 0.8rem;
    min-height: auto;
}
input[type="text"].search-input:focus { border-color: var(--accent); box-shadow: none; transform: none; }

/* --- Posts & Compose Elements --- */
.post-card, .compose-box {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-xl);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease, border-color 0.5s ease;
}

/* Bioluminescent Card Hover States */
.post-card:hover:not(.floating-mockup) {
    transform: translateY(-3px) scale(1.005);
    box-shadow: 0 15px 35px rgba(var(--accent-rgb), 0.08), 0 5px 15px rgba(0,0,0,0.04);
    border-color: rgba(var(--accent-rgb), 0.4);
}

[data-theme="dark"] .post-card:hover:not(.floating-mockup) {
    box-shadow: 0 15px 35px rgba(var(--accent-rgb), 0.12), 0 5px 15px rgba(255,255,255,0.02);
}

.post-card:active:not(.floating-mockup) {
    transform: scale(0.99) translateY(0);
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
    transition: transform 0.1s ease-out, box-shadow 0.1s ease-out;
}

.post-card { display: flex; flex-direction: column; }
.post-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-md); }
.post-author { display: flex; align-items: center; gap: var(--space-md); }
.display-name { font-size: 1.1rem; color: var(--text-main); line-height: 1.2; }
.username { font-size: 0.8rem; color: var(--text-muted); letter-spacing: 1px; }
.post-time { font-size: 0.75rem; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; }

/* Context/Reference blocks */
.context-header {
    padding: var(--space-lg) var(--space-xl) var(--space-md) var(--space-xl);
    border: 1px solid var(--border-color);
    border-bottom: none;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    background: var(--bg-color);
    cursor: pointer;
}
.context-header + .post-card {
    border-top-left-radius: 0;
    border-top-right-radius: 0;
    margin-top: 0;
    border-top: 1px dashed var(--border-color);
}
.context-label {
    display: flex; align-items: center; gap: var(--space-sm);
    font-size: var(--text-xs); color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 1px;
    margin-bottom: var(--space-sm);
}
.quote-box { 
    margin: var(--space-md) 0; padding: var(--space-md); 
    border: 1px solid var(--border-color); border-radius: var(--radius-md); 
    background: var(--bg-secondary); cursor: pointer; transition: border-color 0.3s ease; 
}
.quote-box:hover { border-color: var(--accent); }

/* --- Nested Replies Styling (Reddit-style threading) --- */
.reply-card {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-md);
    background: var(--card-bg);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease, border-color 0.3s ease;
}

.reply-card:hover { 
    border-color: rgba(var(--accent-rgb), 0.5); 
    box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.06), 0 4px 10px rgba(0,0,0,0.02);
}
[data-theme="dark"] .reply-card:hover {
    box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.1), 0 4px 10px rgba(255,255,255,0.02);
}

@media (min-width: 901px) {
    .reply-depth-1 { margin-left: 0; }
    .reply-depth-2 { margin-left: 3rem; }
    .reply-depth-3 { margin-left: 6rem; }
    .reply-depth-4 { margin-left: 9rem; }
    .reply-depth-5 { margin-left: 12rem; }
}
@media (max-width: 900px) {
    .reply-depth-1 { margin-left: 0; }
    .reply-depth-2 { margin-left: 1.5rem; }
    .reply-depth-3 { margin-left: 3rem; }
    .reply-depth-4 { margin-left: 4.5rem; }
    .reply-depth-5 { margin-left: 6rem; }
}

/* Reddit-style curved connecting thread lines */
.reply-card:not(.reply-depth-1)::before {
    content: '';
    position: absolute;
    top: -16px;       /* Span up to previous sibling/parent gap */
    left: -24px;      /* Halfway across the 3rem/48px indent */
    width: 24px;      /* Connect to the left edge of card */
    height: 40px;     /* Curve gracefully downwards into the card */
    border-left: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
    border-bottom-left-radius: 12px;
    pointer-events: none;
    transition: border-color 0.3s ease;
    opacity: 0.6;
}

.reply-card:not(.reply-depth-1):hover::before {
    border-color: var(--accent);
    opacity: 1;
}

@media (max-width: 900px) {
    .reply-card:not(.reply-depth-1)::before {
        left: -12px;
        width: 12px;
        border-bottom-left-radius: 8px;
    }
}

/* Markdown Formatting Fixes */
.markdown-body { font-size: 1rem; line-height: 1.8; font-weight: 300; color: var(--text-main); margin-bottom: var(--space-lg); overflow-wrap: break-word; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, 
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
    font-family: 'Playfair Display', serif; color: var(--text-main); margin-top: var(--space-lg); margin-bottom: var(--space-sm); font-weight: 500; line-height: 1.3;
}
.markdown-body h1 { font-size: 1.8rem; }
.markdown-body h2 { font-size: 1.5rem; }
.markdown-body h3 { font-size: 1.25rem; }
.markdown-body hr { border: none; border-top: 1px dashed var(--border-color); margin: 2rem 0; }
.markdown-body table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.95rem; overflow-x: auto; display: block; border-radius: var(--radius-sm); }
.markdown-body th, .markdown-body td { border: 1px solid var(--border-color); padding: 0.75rem 1rem; text-align: left; }
.markdown-body th { background-color: var(--bg-secondary); font-weight: 500; font-family: 'Playfair Display', serif; letter-spacing: 1px; }
.markdown-body tr:nth-child(even) { background-color: rgba(0, 0, 0, 0.015); }
[data-theme="dark"] .markdown-body tr:nth-child(even) { background-color: rgba(255, 255, 255, 0.015); }
.markdown-body a { color: var(--accent); border-bottom: 1px solid transparent; }
.markdown-body a:hover { border-color: var(--accent); }
.markdown-body p { margin-bottom: 1rem; }
.markdown-body img { max-width: 100%; height: auto; border-radius: var(--radius-md); display: block; margin: 1.5rem 0; border: 1px solid var(--border-color); }
.markdown-body blockquote { border-left: 3px solid var(--accent); padding-left: 1.2rem; margin-left: 0; color: var(--text-muted); font-style: italic; background: transparent; }
.markdown-body ul, .markdown-body ol { padding-left: 2rem; margin-bottom: 1.5rem; }

/* --- Post Actions --- */
.post-actions { display: flex; align-items: center; gap: var(--space-lg); border-top: 1px solid var(--border-color); padding-top: var(--space-md); margin-top: var(--space-md); flex-wrap: wrap; }
.action-btn { display: inline-flex; align-items: center; gap: 6px; background: transparent; border: none; color: var(--text-muted); font-family: 'Montserrat', sans-serif; font-size: 0.8rem; cursor: pointer; padding: 0; }

/* Action Icon Micro-interactions */
.action-btn svg { 
    width: 18px; height: 18px; stroke: currentColor; fill: none; flex-shrink: 0; 
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), fill 0.3s ease, stroke 0.3s ease; 
}
.action-btn:hover { color: var(--text-main); }
.action-btn:hover svg { transform: translateY(-2px) scale(1.05); }

/* Biological Heartbeat Icons */
@keyframes iconHeartbeat {
    0% { transform: scale(1); }
    15% { transform: scale(1.35); }
    30% { transform: scale(1); }
    45% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.like-btn.active svg, 
.repost-btn.active svg, 
.bookmark-btn.active svg { 
    fill: currentColor; 
    stroke: currentColor; 
    animation: iconHeartbeat 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards; 
}

.like-btn.active { color: var(--like-color); }
.repost-btn.active { color: var(--repost-color); }
.bookmark-btn.active { color: var(--accent); }
.delete-btn:hover { color: var(--like-color); }
.delete-btn svg { stroke: currentColor; fill: none; }
.report-btn:hover { color: var(--like-color); }

.count-link { transition: color 0.3s ease; }
.count-link:hover { color: var(--text-main) !important; text-decoration: underline !important; }

/* --- Consistent Compose Footer --- */
.compose-footer {
    display: flex; justify-content: space-between; align-items: center;
    border-top: none; /* Softened from solid border */
    padding-top: var(--space-sm);
    margin-top: var(--space-sm);
}
.compose-box textarea { margin-bottom: 0; }

/* --- Buttons System --- */
@keyframes gentleBreathe {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.btn, .btn-outline {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 0.75rem 1.5rem; min-height: 42px;
    font-family: 'Montserrat', sans-serif; font-weight: 500;
    font-size: 0.8rem; letter-spacing: 1.5px; text-transform: uppercase; cursor: pointer;
    border-radius: var(--radius-sm); text-align: center;
    box-sizing: border-box; line-height: 1.2;
    transition: all 0.3s ease; white-space: nowrap;
}

.btn {
    background-color: var(--text-main); 
    color: var(--bg-color); 
    border: 1px solid var(--text-main); 
    position: relative; 
    overflow: hidden;
    animation: gentleBreathe 4s ease-in-out infinite;
}

.btn:hover, .btn:active {
    animation-play-state: paused;
}

/* Button Physical Feedback */
.btn:active:not(:disabled), 
.btn-outline:active, 
.action-btn:active, 
.city-card:active {
    transform: scale(0.96) !important;
    transition: transform 0.1s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* Button Shine Effect */
.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.15) 50%, rgba(255,255,255,0) 100%);
    transform: skewX(-25deg);
    transition: left 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn:hover:not(:disabled) { background-color: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.btn:hover::after { left: 150%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; animation: none; }

.btn-outline { background-color: transparent; color: var(--text-main); border: 1px solid var(--border-color); }
.btn-outline:hover { background-color: var(--bg-secondary); border-color: var(--accent); color: var(--accent); }

.btn-sm { padding: 0.4rem 1rem; font-size: 0.7rem; min-height: 32px; letter-spacing: 1px; }

.btn-danger { background-color: var(--like-color); border-color: var(--like-color); color: white; animation: none; }
.btn-danger:hover { opacity: 0.9; }
.btn-success { background-color: var(--repost-color); border-color: var(--repost-color); color: white; animation: none; }
.btn-success:hover { opacity: 0.9; }

.error-msg { color: var(--like-color); font-family: 'Playfair Display', serif; font-size: 1.2rem; font-style: italic; margin-bottom: 1rem; }

/* --- Profile --- */
.profile-header { text-align: center; padding: 3rem 0; margin-bottom: 2rem; }
.profile-header .avatar-lg { margin-bottom: 1rem; }
.profile-header h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.profile-stats { display: flex; justify-content: center; flex-wrap: wrap; gap: var(--space-lg); margin: 1.5rem 0; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); }
.profile-stats strong { color: var(--text-main); font-size: 1.1rem; }

/* --- Utilities & Expanding Root Tabs --- */
.tabs { display: flex; gap: 2rem; margin-bottom: 3rem; border-bottom: 1px solid var(--border-color); overflow-x: auto; white-space: nowrap; -ms-overflow-style: none; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }

.tab { 
    position: relative; padding-bottom: 1rem; cursor: pointer; text-transform: uppercase; 
    letter-spacing: 2px; font-size: 0.75rem; color: var(--text-muted); border-bottom: none !important; 
}
.tab::after {
    content: ''; position: absolute; bottom: -1px; left: 0; width: 100%; height: 2px;
    background-color: var(--accent); 
    transform: scaleX(0); 
    transform-origin: center; 
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.4s ease;
}

.tab.active { color: var(--text-main); }
.tab.active::after { transform: scaleX(1); background-color: var(--text-main); }
.tab:not(.active):hover { color: var(--text-main); }
.tab:not(.active):hover::after { transform: scaleX(0.5); background-color: var(--border-color); }

.mobile-only { display: none; }

/* --- Elegant Organic Reveals --- */
@keyframes organicReveal {
    0% { 
        opacity: 0; 
        transform: translateY(20px) scale(0.98); 
        filter: blur(8px); 
    }
    100% { 
        opacity: 1; 
        transform: translateY(0) scale(1); 
        filter: blur(0); 
    }
}

#post-list .post-card, .htmx-added, .reveal.active {
    animation: organicReveal 0.8s cubic-bezier(0.25, 1, 0.3, 1) both !important;
}

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

/* =========================================
   LANDING PAGE OVERRIDES
   ========================================= */

.reveal { opacity: 0; transform: translateY(40px) scale(0.98); filter: blur(8px); transition: all 1s cubic-bezier(0.25, 1, 0.3, 1); }
.reveal.active { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }

.section-label { font-size: 0.75rem; letter-spacing: 3px; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; display: block; }
.badge-pill { display: inline-block; background: var(--bg-secondary); color: var(--accent); padding: 0.4rem 1.2rem; border-radius: 50px; font-size: 0.75rem; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 1.5rem; border: 1px solid var(--border-color); }

.hero { display: flex; align-items: center; justify-content: space-between; padding: 6rem 5%; min-height: 85vh; gap: 4rem; max-width: 1400px; margin: 0 auto; }
.hero-text { flex: 1; max-width: 600px; }
.hero-text h1 { font-size: 4.5rem; line-height: 1.1; margin-bottom: 2rem; color: var(--text-main); }
.hero-text h1 i { color: var(--accent); }
.hero-text p { font-size: 1.1rem; line-height: 1.8; color: var(--text-muted); font-weight: 300; margin-bottom: 3rem; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-visual { flex: 1; position: relative; display: flex; justify-content: center; align-items: center; min-height: 500px;}
.floating-mockup {
    background: var(--card-bg); border: 1px solid var(--border-color); padding: 2rem; border-radius: var(--radius-lg);
    box-shadow: 0 40px 80px rgba(0,0,0,0.08); backdrop-filter: blur(20px); width: 100%; max-width: 450px;
    animation: float 6s ease-in-out infinite; position: relative; z-index: 2;
}
.secondary-mockup {
    position: absolute; bottom: -20px; right: -20px; max-width: 300px; padding: 1.5rem; z-index: 3;
    background: var(--bg-color); animation: float 7s ease-in-out infinite reverse; border-left: 3px solid var(--like-color);
}

@keyframes float { 0% { transform: translateY(0px); } 50% { transform: translateY(-15px); } 100% { transform: translateY(0px); } }

.philosophy { padding: 8rem 5%; background-color: var(--bg-secondary); text-align: center; }
.philosophy h2 { font-size: 3rem; margin-bottom: 4rem; max-width: 800px; margin-left: auto; margin-right: auto; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4rem; max-width: 1200px; margin: 0 auto; }
.card { text-align: left; background: var(--bg-color); padding: 3rem; border-radius: var(--radius-lg); border: 1px solid var(--border-color); transition: transform 0.3s ease; display: flex; flex-direction: column; height: 100%; }
.card:hover { transform: translateY(-10px); }
.card-icon { color: var(--accent); margin-bottom: 1.5rem; }
.card-icon svg { width: 36px; height: 36px; }
.card h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.card p { font-size: 0.95rem; line-height: 1.7; font-weight: 300; color: var(--text-muted); }

.feature-showcase { padding: 8rem 5%; max-width: 1300px; margin: 0 auto; }
.feature-row { display: flex; align-items: center; justify-content: space-between; gap: 4rem; margin-bottom: 8rem; }
.feature-row.reverse { flex-direction: row-reverse; }
.feature-text { flex: 1; }
.feature-text h2 { font-size: 3rem; margin-bottom: 1.5rem; }
.feature-text p { font-size: 1.1rem; line-height: 1.8; color: var(--text-muted); font-weight: 300; margin-bottom: 2rem; }
.feature-list { list-style: none; }
.feature-list li { display: flex; align-items: center; gap: 10px; margin-bottom: 1rem; font-size: 0.95rem; color: var(--text-main); }
.feature-list svg { width: 18px; height: 18px; stroke: var(--accent); fill: none; }
.feature-image { flex: 1; position: relative; }
.soft-shadow-img { width: 100%; border-radius: var(--radius-md); box-shadow: 0 30px 60px rgba(0,0,0,0.1); border: 1px solid var(--border-color); }
.glass-mockup { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-lg); box-shadow: 0 30px 60px rgba(0,0,0,0.08); width: 100%; box-sizing: border-box; }

.engine-section { padding: 8rem 5%; border-bottom: 1px solid var(--border-color); text-align: center; background: var(--bg-secondary);}
.engine-section h2 { font-size: 3.5rem; margin-bottom: 1.5rem; }
.engine-desc { color: var(--text-muted); font-weight: 300; line-height: 1.8; max-width: 600px; margin: 0 auto 4rem auto; font-size: 1.1rem; }
.engine-ui { background-color: var(--bg-color); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 3rem; max-width: 800px; margin: 0 auto; box-shadow: 0 40px 80px rgba(0,0,0,0.05); text-align: left; }
.engine-input-group { display: flex; gap: 1rem; margin-bottom: 2rem; }
.engine-input-group input { flex: 1; }
.ai-loader { display: none; justify-content: center; align-items: center; gap: 15px; padding: 3rem 0; font-style: italic; font-family: 'Playfair Display', serif; color: var(--accent); font-size: 1.2rem; }

/* Mitosis Cell Loader */
.spinner {
    width: 40px; 
    height: 20px; 
    position: relative;
    border: none; 
    animation: none; 
    border-radius: 0;
}
.spinner::before, .spinner::after {
    content: ''; 
    position: absolute;
    width: 16px; 
    height: 16px; 
    border-radius: 50%;
    background: var(--accent);
    top: 50%; 
    transform: translateY(-50%);
    mix-blend-mode: multiply;
    animation: mitosis 1.5s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate;
}
[data-theme="dark"] .spinner::before, [data-theme="dark"] .spinner::after {
    mix-blend-mode: screen;
}
.spinner::before { left: 0; }
.spinner::after { right: 0; animation-delay: -0.75s; }

@keyframes mitosis {
    0% { transform: translateY(-50%) scale(1.2); opacity: 0.9; left: 12px; }
    100% { transform: translateY(-50%) scale(0.8); opacity: 0.4; left: 0; }
}

.ai-results { display: none; border-top: 1px solid var(--border-color); padding-top: 2rem; animation: organicReveal 1s ease forwards; }
.dossier-row { margin-bottom: 1.5rem; display: flex; flex-direction: column; }
.dossier-label { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted); margin-bottom: 0.5rem; }
.dossier-value { font-size: 0.95rem; line-height: 1.6; font-weight: 300; }
.status-reject { color: #D2042D; font-family: 'Playfair Display', serif; font-size: 1.5rem; font-weight: 600; letter-spacing: 2px; }

.waitlist { padding: 8rem 5%; text-align: center; display: flex; flex-direction: column; align-items: center; }
.waitlist h2 { font-size: 3.5rem; margin-bottom: 1.5rem; }
.waitlist p { color: var(--text-muted); margin-bottom: 3rem; font-size: 1.1rem; font-weight: 300; }
.form-container { display: flex; width: 100%; max-width: 500px; margin-bottom: 2rem; border-bottom: 1px solid var(--text-main); padding-bottom: 0.5rem; justify-content: space-between; }
.form-container button { background: transparent; border: none; font-family: 'Montserrat', sans-serif; font-size: 0.85rem; letter-spacing: 2px; text-transform: uppercase; color: var(--text-main); cursor: pointer; padding-left: 1rem; }
.form-container button:hover { color: var(--accent); }
.success-msg { display: none; color: var(--accent); font-family: 'Playfair Display', serif; font-size: 1.5rem; margin-top: 1rem; font-style: italic; }
.counter-box { display: inline-flex; align-items: center; gap: 15px; background-color: var(--bg-secondary); padding: 1rem 2rem; border-radius: 50px; border: 1px solid var(--border-color); }
.counter-number { font-family: 'Playfair Display', serif; font-size: 1.8rem; color: var(--accent); font-weight: 600; }
.counter-text { font-size: 0.85rem; letter-spacing: 1px; text-transform: uppercase; color: var(--text-muted); }

footer { 
    padding: 1.2rem 5%; text-align: center; border-top: 1px solid var(--border-color); 
    color: var(--text-muted); font-size: 0.8rem; letter-spacing: 2px; text-transform: uppercase; 
    background: var(--bg-color); display: flex; align-items: center; justify-content: center;
}

/* Search Bar */
.search-form { margin-right: 2rem; }

/* Mobile Logout */
.mobile-logout-btn { display: none; color: var(--text-muted); margin-right: 0.5rem; align-items: center; }
.mobile-logout-btn:hover { color: var(--like-color); }
.mobile-logout-btn svg { width: 20px; height: 20px; stroke: currentColor; fill: none; }

/* --- Responsive Overrides --- */
@media (max-width: 900px) {
    .desktop-only { display: none; }
    nav.top-nav { padding: 1rem 5%; } 
    .nav-right { gap: 1rem; } 
    .mobile-logout-btn { display: inline-flex; } 
    .nav-links { display: none; } 
    .search-form { display: none; }
    .bottom-nav { display: flex; }
    .mobile-only { display: block; }
    
    .app-container { padding: 1rem 0.5rem; } 
    
    .post-card, .compose-box { padding: 1.25rem 1rem; margin-bottom: 1rem; }
    .context-header { padding: 1rem 1rem 0.5rem 1rem; }

    .tabs { padding: 0 0.5rem; margin-bottom: 1.5rem; }
    
    .hero { flex-direction: column; text-align: center; padding: 4rem 5%; gap: 2rem; min-height: auto; }
    .hero-text { padding-right: 0; margin-bottom: 2rem; }
    .hero-text h1 { font-size: 3rem; }
    .hero-text p { margin: 0 auto 2rem auto; }
    .hero-cta { justify-content: center; }
    .hero-visual { min-height: auto; width: 100%; margin-top: 1rem; }
    .floating-mockup { padding: 1.5rem; text-align: left; animation: none; }
    .secondary-mockup { display: none; }
    
    .philosophy, .feature-showcase, .engine-section, .waitlist { padding: 5rem 5%; }
    .philosophy h2, .feature-text h2, .engine-section h2, .waitlist h2 { font-size: 2.2rem; }
    .grid { grid-template-columns: 1fr; }
    .card { padding: 2.5rem; text-align: center; }
    .card-icon { display: flex; justify-content: center; margin-bottom: 1rem; }
    .feature-row, .feature-row.reverse { flex-direction: column; gap: 3rem; margin-bottom: 5rem; text-align: center; }
    .feature-list li { justify-content: center; }
    .engine-input-group { flex-direction: column; gap: 1rem; }
    .engine-ui { padding: 2rem 1.5rem; }
    footer { padding: 1rem 5%; } 
    
    body.has-bottom-nav { padding-bottom: calc(70px + env(safe-area-inset-bottom, 0px)); }

    /* Fix Post Actions Wrapping */
    .post-actions { gap: var(--space-xs); justify-content: space-between; }
    .post-actions .moderator-actions { margin-left: 0 !important; width: 100%; justify-content: flex-end; margin-top: 0.5rem; border-top: 1px dashed var(--border-color); padding-top: 0.5rem; }

    /* Button and form updates */
    .btn, .btn-outline { padding: 0.6rem 1.2rem; font-size: 0.75rem; min-height: 38px; }
    .compose-footer { flex-direction: column; align-items: stretch; gap: var(--space-md); }
    .compose-footer .btn, .compose-footer .btn-outline { width: 100%; }
    
    .file-upload-wrapper, .file-upload-btn { width: 100%; justify-content: center; }
    .settings-form button[type="submit"] { width: 100%; }

    input[type="text"].search-input.w-100 { width: 100%; padding: 0.6rem 1rem; font-size: 0.95rem; }

    /* RSVP Section Mobile */
    #rsvp-section { margin-left: 0 !important; align-items: flex-start !important; text-align: left !important; width: 100%; margin-top: 1rem; }
    #rsvp-container, #rsvp-container form { width: 100%; max-width: none !important; }
    #rsvp-container .btn, #rsvp-container .btn-outline { width: 100%; }
    
    /* Responsive Logo Size Override */
    .logo { font-size: 2.0rem; }
}

/* --- Utilities (Mentions, Files, Events) --- */
a.mention { color: var(--accent); font-weight: 500; }
a.hashtag { color: var(--text-muted); text-decoration: underline; text-decoration-color: var(--accent); }

.file-upload-wrapper { position: relative; overflow: hidden; display: inline-block; cursor: pointer; }
.file-upload-wrapper input[type=file] { font-size: 100px; position: absolute; left: 0; top: 0; opacity: 0; cursor: pointer; }
.file-upload-btn { 
    display: flex; align-items: center; justify-content: center; gap: 8px; 
    color: var(--text-muted); font-size: 0.8rem; font-family: 'Montserrat', sans-serif; 
    padding: 0.75rem 1.5rem; min-height: 42px; border: 1px solid var(--border-color); 
    border-radius: var(--radius-sm); background: transparent; cursor: pointer; transition: all 0.3s ease; 
}
.file-upload-btn:hover { border-color: var(--accent); color: var(--accent); }

.settings-form { max-width: 600px; margin: 0 auto; }
.settings-group { margin-bottom: 1.5rem; }
.settings-group label { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; font-weight: 500; color: var(--text-muted); margin-bottom: 0.5rem; }
.settings-group .text-xs { margin-top: 0.25rem; display: block; }

/* Smooth expansion of Read More text */
@keyframes textReveal {
    from { opacity: 0.6; transform: translateY(2px); }
    to { opacity: 1; transform: translateY(0); }
}
.feed-text-wrapper { display: -webkit-box; -webkit-line-clamp: 5; -webkit-box-orient: vertical; overflow: hidden; position: relative; transition: all 0.3s ease; }
.feed-text-wrapper.expanded { display: block; -webkit-line-clamp: unset; animation: textReveal 0.5s ease-out forwards; }
.read-more-btn { background: transparent; border: none; color: var(--accent); font-family: 'Montserrat', sans-serif; font-size: 0.85rem; font-weight: 600; cursor: pointer; padding: 0; margin-top: 0.5rem; margin-bottom: 0.5rem; display: none; }
.read-more-btn:hover { text-decoration: underline; }

.city-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 1rem; margin-top: 1rem; }
.city-card { border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 1rem 0.5rem; text-align: center; cursor: pointer; transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.3s ease; }
.city-card:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.03); }
.city-card img { width: 60px; height: 60px; margin-bottom: 0.5rem; object-fit: contain; mix-blend-mode: multiply; }
[data-theme="dark"] .city-card img { filter: invert(1) brightness(2); mix-blend-mode: screen; }
.city-card.selected { border-color: var(--accent); background: var(--bg-secondary); }
.city-radio { display: none; }

.event-meta { font-size: 0.85rem; color: var(--text-muted); display: flex; align-items: flex-start; flex-wrap: wrap; gap: var(--space-md); margin-top: 0.5rem; margin-bottom: 1rem; }
.event-meta-item { display: flex; align-items: flex-start; gap: 6px; min-width: 0; }
.event-meta-item svg { width: 14px; height: 14px; margin-top: 3px; flex-shrink: 0; }
.event-meta-item span { line-height: 1.4; word-break: break-word; }

.progress-bar-bg { background: var(--border-color); border-radius: 10px; height: 6px; width: 100%; margin-top: 0.5rem; overflow: hidden; }
.progress-bar-fill { background: var(--accent); height: 100%; }

.manage-list { margin-top: 2rem; }
.manage-row { display: flex; align-items: center; justify-content: space-between; padding: 1rem; border-bottom: 1px solid var(--border-color); }

/* --- Fluid HTMX Transitions --- */
.htmx-swapping {
    opacity: 0;
    transform: translateY(-5px);
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}
.htmx-settling {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease-in, transform 0.4s ease-out;
}

/* --- Elegant Scrollbar --- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
    transition: background 0.3s ease;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}