:root {
    --bg-primary: #050714;
    --bg-secondary: #0a0d24;
    --bg-card: rgba(16, 22, 42, 0.55);
    --bg-card-hover: rgba(24, 32, 60, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.4);

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;

    --accent-blue: #38bdf8;
    --accent-blue-light: #7dd3fc;
    --accent-purple: #c084fc;
    --accent-green: #34d399;
    --accent-orange: #fb923c;
    --accent-pink: #f472b6;
    --accent-red: #f87171;
    --accent-cyan: #22d3ee;

    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
    --gradient-blue: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
    --gradient-purple: linear-gradient(135deg, #a855f7 0%, #6d28d9 100%);
    --gradient-green: linear-gradient(135deg, #10b981 0%, #047857 100%);
    --gradient-orange: linear-gradient(135deg, #f97316 0%, #c2410c 100%);
    --gradient-pink: linear-gradient(135deg, #ec4899 0%, #be185d 100%);
    --gradient-red: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
    --gradient-cyan: linear-gradient(135deg, #06b6d4 0%, #0e7490 100%);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 26px;

    --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
    --shadow-card: 0 16px 36px rgba(0, 0, 0, 0.45);

    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-spring: 0.65s cubic-bezier(0.34, 1.56, 0.64, 1);

    --font: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { 
    font-size: 14px; 
    scroll-behavior: smooth; 
}

body {
    font-family: var(--font);
    background: #03040c;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: 
        radial-gradient(rgba(255, 255, 255, 0.03) 1.2px, transparent 1.2px),
        linear-gradient(rgba(99, 102, 241, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.015) 1px, transparent 1px);
    background-size: 24px 24px, 48px 48px, 48px 48px;
    pointer-events: none;
    z-index: 0;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.35);
}

.bg-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
    display: block;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.2;
    mix-blend-mode: screen;
    animation: orbFloat 20s infinite alternate ease-in-out;
}

.orb-1 {
    top: -10%;
    left: -10%;
    width: 55vw;
    height: 55vw;
    background: radial-gradient(circle, #6366f1 0%, rgba(99, 102, 241, 0) 70%);
}

.orb-2 {
    bottom: -15%;
    right: -15%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, #a855f7 0%, rgba(168, 85, 247, 0) 70%);
    animation-delay: -5s;
    animation-duration: 25s;
}

.orb-3 {
    top: 30%;
    right: 15%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, #06b6d4 0%, rgba(6, 182, 212, 0) 70%);
    animation-delay: -10s;
    animation-duration: 18s;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(4%, 6%) scale(1.08); }
    100% { transform: translate(-3%, -5%) scale(0.95); }
}

.app { 
    position: relative; 
    z-index: 1; 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 40px 24px 80px; 
}

.header { 
    display: flex; 
    align-items: center; 
    margin-bottom: 40px; 
    padding: 20px 0; 
    border-bottom: 1px solid rgba(255, 255, 255, 0.05); 
}

.logo { 
    display: flex; 
    align-items: center; 
    gap: 18px; 
}

.logo-icon {
    width: 52px; 
    height: 52px; 
    background: var(--gradient-primary); 
    border-radius: var(--radius-md); 
    display: flex; 
    align-items: center; 
    justify-content: center;
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
    animation: logoGlow 4s infinite alternate ease-in-out;
}

@keyframes logoGlow {
    0% { box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3); }
    100% { box-shadow: 0 8px 36px rgba(168, 85, 247, 0.6); }
}

.logo-icon svg { 
    width: 26px; 
    height: 26px; 
    color: white; 
}

.logo h1 {
    font-size: 2.0rem; 
    font-weight: 800;
    letter-spacing: -0.04em;
    background: linear-gradient(120deg, #ffffff 30%, #a5b4fc 60%, #c084fc 80%, #ffffff 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shineText 5s linear infinite;
}

@keyframes shineText {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.subtitle { 
    font-size: 0.95rem; 
    color: var(--text-muted); 
    font-weight: 600;
    margin-top: 3px;
    letter-spacing: 0.02em;
}

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-normal);
}

.glass-card:hover { 
    background: var(--bg-card-hover); 
    border-color: var(--border-glow); 
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 20px rgba(99, 102, 241, 0.15);
}

.upload-section { 
    animation: slideUpFade 0.75s cubic-bezier(0.16, 1, 0.3, 1) both; 
}

.drop-zone {
    border: 1px solid rgba(255, 255, 255, 0.08); 
    border-radius: var(--radius-xl);
    padding: 80px 40px; 
    text-align: center; 
    cursor: default;
    background: rgba(10, 15, 30, 0.35); 
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    transition: all var(--transition-slow);
    position: relative; 
    overflow: hidden;
    box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.drop-zone::after {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
    transform: skewX(-20deg);
    animation: cardShine 9s infinite ease-in-out;
}

@keyframes cardShine {
    0% { left: -150%; }
    15% { left: 150%; }
    100% { left: 150%; }
}

.drop-zone:hover, .drop-zone.drag-over { 
    border-color: var(--border-glow); 
    background: rgba(16, 20, 48, 0.6); 
    box-shadow: 
        0 24px 60px rgba(0, 0, 0, 0.55),
        0 0 35px rgba(99, 102, 241, 0.2), 
        inset 0 0 20px rgba(99, 102, 241, 0.08); 
    transform: translateY(-4px) scale(1.005);
}

.upload-icon {
    width: 86px; 
    height: 86px; 
    margin: 0 auto 28px; 
    background: var(--gradient-primary);
    border-radius: 50%; 
    display: flex; 
    align-items: center; 
    justify-content: center;
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.45); 
    position: relative;
    transition: transform var(--transition-spring);
}

.upload-icon::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 2px solid rgba(168, 85, 247, 0.45);
    animation: radarRipple 2s infinite ease-out;
}

@keyframes radarRipple {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.35); opacity: 0; }
}

.drop-zone:hover .upload-icon {
    transform: scale(1.1) rotate(-5deg);
}

.upload-icon svg { 
    width: 38px; 
    height: 38px; 
    color: white; 
}

.drop-zone h2 { 
    font-size: 1.8rem; 
    font-weight: 800; 
    margin-bottom: 10px; 
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #ffffff 60%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.drop-zone .hint { 
    margin-top: 16px; 
    font-size: 0.95rem; 
    color: var(--text-muted); 
}

.drop-zone .hint code { 
    background: rgba(99, 102, 241, 0.15); 
    padding: 3px 10px; 
    border-radius: 6px; 
    font-size: 0.85rem; 
    color: var(--accent-blue-light); 
    font-family: monospace;
}

.upload-buttons { 
    display: flex; 
    gap: 16px; 
    justify-content: center; 
    margin-top: 32px; 
}

.btn-upload {
    display: inline-flex; 
    align-items: center; 
    gap: 10px; 
    padding: 14px 30px;
    border: 1px solid rgba(99, 102, 241, 0.4); 
    border-radius: var(--radius-md);
    background: rgba(99, 102, 241, 0.12); 
    color: white;
    font-family: var(--font); 
    font-size: 0.98rem; 
    font-weight: 700; 
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-spring);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-upload::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 0;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%) rotate(45deg);
    transition: height 0.35s ease;
    z-index: 0;
}

.btn-upload:hover::before {
    height: 350%;
}

.btn-upload:hover { 
    background: var(--gradient-primary); 
    border-color: transparent;
    transform: translateY(-3px); 
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.45); 
}

.btn-upload-folder { 
    border-color: rgba(255, 255, 255, 0.15); 
    background: rgba(255, 255, 255, 0.05); 
    color: var(--text-secondary); 
}

.btn-upload-folder:hover { 
    background: rgba(255, 255, 255, 0.1); 
    border-color: rgba(255, 255, 255, 0.35); 
    color: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.how-to { 
    margin-top: 40px; 
    padding: 36px; 
    background: var(--bg-card); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-lg); 
    backdrop-filter: blur(25px); 
    box-shadow: var(--shadow-card);
}

.how-to h3 { 
    font-size: 1.25rem; 
    font-weight: 800; 
    margin-bottom: 28px; 
    letter-spacing: -0.02em;
    background: linear-gradient(90deg, #ffffff 40%, #c7d2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.steps { 
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px; 
}

.step { 
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    display: flex; 
    flex-direction: column;
    align-items: center;
    text-align: center; 
    gap: 18px; 
    backdrop-filter: blur(15px);
    transition: all var(--transition-spring);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.step:hover {
    background: rgba(255, 255, 255, 0.035);
    border-color: rgba(99, 102, 241, 0.35);
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(99, 102, 241, 0.18);
}

.step-num { 
    min-width: 44px; 
    height: 44px; 
    background: var(--gradient-primary); 
    border: none;
    border-radius: 50%; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: 1.15rem; 
    font-weight: 800; 
    color: white; 
    flex-shrink: 0; 
    box-shadow: 0 6px 15px rgba(168, 85, 247, 0.45);
    transition: transform var(--transition-spring);
}

.step:hover .step-num {
    transform: scale(1.1) rotate(360deg);
}

.step p { 
    font-size: 0.95rem; 
    color: var(--text-secondary); 
    line-height: 1.65; 
}

.step strong { 
    color: white; 
    font-weight: 700;
}

.step code { 
    background: rgba(99, 102, 241, 0.15); 
    padding: 2px 8px; 
    border-radius: 6px; 
    font-size: 0.88rem; 
    color: var(--accent-blue-light); 
}

.loading-section { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    padding: 120px 0; 
}

.loader { 
    text-align: center; 
}

.loader-ring { 
    width: 68px; 
    height: 68px; 
    border: 4px solid rgba(99, 102, 241, 0.08); 
    border-top-color: var(--accent-purple); 
    border-right-color: var(--accent-blue);
    border-radius: 50%; 
    margin: 0 auto 24px; 
    animation: spin 0.9s cubic-bezier(0.5, 0.1, 0.4, 0.9) infinite; 
}

@keyframes spin { 
    to { transform: rotate(360deg); } 
}

.loader p { 
    color: white; 
    font-size: 1.15rem; 
    font-weight: 700; 
}

.loading-detail { 
    font-size: 0.88rem !important; 
    color: var(--text-muted) !important; 
    margin-top: 12px; 
    letter-spacing: 0.02em;
}

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

@keyframes slideUpFade { 
    from { opacity: 0; transform: translateY(30px); filter: blur(5px); } 
    to { opacity: 1; transform: translateY(0); filter: blur(0); } 
}

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

.fade-in { 
    animation: slideUpFade 0.65s cubic-bezier(0.16, 1, 0.3, 1) both; 
}

.action-bar { 
    margin-bottom: 30px; 
    display: flex; 
    align-items: center; 
    gap: 16px; 
}

.btn-action {
    display: inline-flex; 
    align-items: center; 
    gap: 8px; 
    padding: 11px 22px;
    background: var(--bg-card); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-md);
    color: var(--text-secondary); 
    font-family: var(--font); 
    font-size: 0.9rem; 
    font-weight: 600;
    cursor: pointer; 
    transition: all var(--transition-normal); 
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-action svg { 
    width: 18px; 
    height: 18px; 
    transition: transform var(--transition-normal);
}

.btn-action:hover { 
    background: var(--bg-card-hover); 
    border-color: var(--border-glow); 
    color: white; 
    transform: translateY(-1px);
}

.btn-action:hover svg {
    transform: translateX(-3px);
}

.nav-tabs {
    display: flex;
    gap: 6px;
    background: rgba(0, 0, 0, 0.25);
    padding: 6px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow-x: auto;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.tab-btn:hover {
    color: white;
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(168, 85, 247, 0.35);
}

.tab-content {
    animation: fadeIn 0.45s ease;
}

.global-stats-banner {
    padding: 40px 32px; 
    margin-bottom: 30px; 
    text-align: center;
    background: var(--bg-card); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-lg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.global-stats-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 25%;
    width: 50%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.5), transparent);
}

.global-stats-banner h2 {
    font-size: 1.8rem; 
    font-weight: 800; 
    margin-bottom: 6px;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 50%, #c7d2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.global-stats-banner .sub { 
    font-size: 0.95rem; 
    color: var(--text-muted); 
    margin-bottom: 32px; 
    font-weight: 600;
}

.global-stats-row { 
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 20px; 
    justify-content: center;
}

.global-stat { 
    text-align: center; 
    padding: 16px 10px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    transition: transform var(--transition-normal), background var(--transition-normal);
}

.global-stat:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.04);
}

.global-stat .val { 
    font-size: 2.2rem; 
    font-weight: 800; 
    letter-spacing: -0.04em; 
    display: block; 
    line-height: 1.2;
    margin-bottom: 4px;
}

.global-stat .lbl { 
    font-size: 0.8rem; 
    color: var(--text-muted); 
    font-weight: 600; 
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.global-stat.blue .val { color: var(--accent-blue); }
.global-stat.purple .val { color: var(--accent-purple); }
.global-stat.green .val { color: var(--accent-green); }
.global-stat.orange .val { color: var(--accent-orange); }
.global-stat.pink .val { color: var(--accent-pink); }
.global-stat.cyan .val { color: var(--accent-cyan); }

.search-bar {
    display: flex; 
    gap: 16px; 
    margin-bottom: 24px; 
    align-items: center;
}

.search-input {
    flex: 1; 
    padding: 14px 20px; 
    background: rgba(0, 0, 0, 0.25); 
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md); 
    color: white; 
    font-family: var(--font); 
    font-size: 0.95rem;
    outline: none; 
    transition: all var(--transition-normal);
}

.search-input:focus { 
    border-color: var(--accent-purple); 
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.25); 
    background: rgba(0, 0, 0, 0.4);
}

.search-input::placeholder { 
    color: var(--text-muted); 
}

.sort-select {
    padding: 14px 20px; 
    background: rgba(0, 0, 0, 0.25); 
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md); 
    color: var(--text-secondary); 
    font-family: var(--font); 
    font-size: 0.9rem;
    font-weight: 600;
    outline: none; 
    cursor: pointer; 
    appearance: none; 
    min-width: 200px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23cbd5e1' viewBox='0 0 16 16'%3E%3Cpath d='M8 11.5L3 6.5h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat; 
    background-position: right 14px center; 
    padding-right: 44px;
    transition: all var(--transition-normal);
}

.sort-select:focus { 
    border-color: var(--accent-purple); 
}

.sort-select option { 
    background: #0f1225; 
    color: white; 
}

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

.conv-card {
    display: flex; 
    align-items: center; 
    gap: 20px; 
    padding: 20px 24px;
    background: var(--bg-card); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-lg);
    cursor: pointer; 
    backdrop-filter: blur(15px);
    transition: all var(--transition-spring); 
    position: relative; 
    overflow: hidden;
    animation: slideUpFade 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: var(--delay, 0s);
}

.conv-card::before {
    content: ''; 
    position: absolute; 
    left: 0; 
    top: 0; 
    bottom: 0; 
    width: 4px;
    background: var(--gradient-primary); 
    opacity: 0; 
    transition: opacity var(--transition-normal);
}

.conv-card:hover { 
    background: var(--bg-card-hover); 
    border-color: var(--border-glow); 
    transform: translateX(4px) translateY(-1px); 
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), 0 0 15px rgba(99, 102, 241, 0.1);
}

.conv-card:hover::before { 
    opacity: 1; 
}

.conv-avatar {
    width: 52px; 
    height: 52px; 
    border-radius: 50%; 
    display: flex; 
    align-items: center; 
    justify-content: center;
    font-weight: 700; 
    font-size: 0.95rem; 
    color: white; 
    flex-shrink: 0; 
    letter-spacing: -0.01em;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: transform var(--transition-spring);
}

.conv-card:hover .conv-avatar {
    transform: scale(1.06);
}

.conv-card-body { 
    flex: 1; 
    min-width: 0; 
}

.conv-card-name { 
    font-size: 1.05rem; 
    font-weight: 700; 
    white-space: nowrap; 
    overflow: hidden; 
    text-overflow: ellipsis; 
    margin-bottom: 4px; 
}

.conv-card-meta { 
    font-size: 0.85rem; 
    color: var(--text-muted); 
    display: flex; 
    gap: 16px; 
    flex-wrap: wrap; 
}

.conv-card-meta span { 
    display: inline-flex; 
    align-items: center; 
    gap: 6px; 
}

.conv-card-stats { 
    display: flex; 
    gap: 24px; 
    flex-shrink: 0; 
}

.conv-card-stat { 
    text-align: center; 
}

.conv-card-stat .num { 
    font-size: 1.25rem; 
    font-weight: 800; 
    display: block; 
    color: white; 
}

.conv-card-stat .lbl { 
    font-size: 0.72rem; 
    color: var(--text-muted); 
    font-weight: 600;
    text-transform: uppercase;
}

.conv-card-arrow {
    color: var(--text-muted); 
    flex-shrink: 0; 
    transition: all var(--transition-normal);
}

.conv-card:hover .conv-card-arrow { 
    color: var(--accent-purple); 
    transform: translateX(4px); 
}

.section-title {
    display: flex; 
    align-items: center; 
    gap: 12px;
    font-size: 1.15rem; 
    font-weight: 700; 
    margin-bottom: 24px;
    color: white;
}

.section-icon { 
    width: 22px; 
    height: 22px; 
    color: var(--accent-purple); 
    flex-shrink: 0; 
}

.section-card {
    padding: 32px; 
    margin-bottom: 30px;
    background: var(--bg-card); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-normal);
}

.section-card:hover { 
    background: var(--bg-card-hover); 
    border-color: var(--border-glow); 
}

.conv-info-banner { 
    padding: 36px 32px; 
    margin-bottom: 30px; 
    text-align: center; 
    background: var(--bg-card); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-lg); 
    backdrop-filter: blur(25px);
    box-shadow: var(--shadow-card);
}

.conv-info-banner h2 { 
    font-size: 1.8rem; 
    font-weight: 800; 
    background: var(--gradient-primary); 
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
    background-clip: text; 
    margin-bottom: 16px; 
    letter-spacing: -0.02em;
}

.participant-tags { 
    display: flex; 
    flex-wrap: wrap; 
    justify-content: center; 
    gap: 10px; 
}

.participant-tag { 
    display: inline-flex; 
    align-items: center; 
    gap: 8px; 
    padding: 6px 16px; 
    background: rgba(99, 102, 241, 0.1); 
    border: 1px solid rgba(99, 102, 241, 0.25); 
    border-radius: 20px; 
    font-size: 0.88rem; 
    font-weight: 600; 
    color: var(--accent-blue-light); 
    transition: all var(--transition-normal);
}

.participant-tag:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.5);
    transform: scale(1.05);
}

.participant-dot { 
    width: 6px; 
    height: 6px; 
    border-radius: 50%; 
    background: var(--accent-blue); 
}

.stats-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); 
    gap: 20px; 
    margin-bottom: 30px; 
}

.stat-card {
    padding: 24px 28px; 
    display: flex; 
    align-items: center; 
    gap: 20px;
    background: var(--bg-card); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-lg);
    backdrop-filter: blur(15px);
    transition: all var(--transition-spring);
    box-shadow: var(--shadow-card);
}

.stat-card:hover { 
    background: var(--bg-card-hover); 
    border-color: var(--border-glow); 
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.35), 0 0 15px rgba(99,102,241,0.15);
}

.stat-icon {
    width: 52px; 
    height: 52px; 
    border-radius: var(--radius-md);
    display: flex; 
    align-items: center; 
    justify-content: center; 
    flex-shrink: 0;
    box-shadow: 0 6px 15px rgba(0,0,0,0.2);
}

.stat-icon svg { 
    width: 24px; 
    height: 24px; 
    color: white; 
}

.stat-icon.blue { background: var(--gradient-blue); }
.stat-icon.purple { background: var(--gradient-purple); }
.stat-icon.green { background: var(--gradient-green); }
.stat-icon.orange { background: var(--gradient-orange); }
.stat-icon.pink { background: var(--gradient-pink); }
.stat-icon.red { background: var(--gradient-red); }
.stat-icon.cyan { background: var(--gradient-cyan); }

.stat-info { 
    display: flex; 
    flex-direction: column; 
}

.stat-value { 
    font-size: 1.8rem; 
    font-weight: 800; 
    line-height: 1.2; 
    letter-spacing: -0.03em; 
    color: white;
}

.stat-label { 
    font-size: 0.85rem; 
    color: var(--text-muted); 
    font-weight: 600; 
    margin-top: 3px; 
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.mini-stat-card {
    text-align: center; 
    padding: 20px 16px; 
    background: rgba(255, 255, 255, 0.02); 
    border: 1px solid rgba(255, 255, 255, 0.04); 
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.mini-stat-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.mini-stat-emoji {
    font-size: 1.8rem; 
    margin-bottom: 6px;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

.mini-stat-val {
    font-size: 1.35rem; 
    font-weight: 800;
    color: white;
}

.mini-stat-lbl {
    font-size: 0.78rem; 
    color: var(--text-muted);
    font-weight: 600;
    margin-top: 2px;
}

.messages-row { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 20px; 
}

.msg-bubble { 
    background: rgba(99, 102, 241, 0.05); 
    border: 1px solid rgba(99, 102, 241, 0.15); 
    border-radius: var(--radius-lg); 
    padding: 20px 24px; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: border-color var(--transition-normal);
}

.msg-bubble:hover {
    border-color: rgba(99, 102, 241, 0.35);
}

.msg-sender { 
    font-size: 0.85rem; 
    font-weight: 700; 
    color: var(--accent-purple); 
    margin-bottom: 8px; 
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.msg-content { 
    font-size: 1rem; 
    color: white; 
    line-height: 1.6; 
    word-break: break-word; 
}

.msg-time { 
    font-size: 0.8rem; 
    color: var(--text-muted); 
    margin-top: 12px; 
    display: flex; 
    align-items: center; 
    gap: 8px; 
}

.msg-type-badge { 
    display: inline-block; 
    padding: 3px 10px; 
    border-radius: 6px; 
    font-size: 0.72rem; 
    font-weight: 700; 
    background: rgba(168, 85, 247, 0.15); 
    color: var(--accent-purple); 
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.per-person-stats { 
    display: flex; 
    flex-direction: column; 
    gap: 16px; 
}

.person-row { 
    display: flex; 
    align-items: center; 
    gap: 20px; 
    padding: 16px 20px; 
    background: rgba(255, 255, 255, 0.01); 
    border: 1px solid rgba(255, 255, 255, 0.03); 
    border-radius: var(--radius-md); 
    transition: all var(--transition-normal); 
}

.person-row:hover { 
    background: rgba(255, 255, 255, 0.03); 
    border-color: rgba(255, 255, 255, 0.08); 
    transform: translateX(4px);
}

.person-avatar { 
    width: 44px; 
    height: 44px; 
    border-radius: 50%; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-weight: 700; 
    font-size: 0.95rem; 
    color: white; 
    flex-shrink: 0; 
    box-shadow: 0 4px 10px rgba(0,0,0,0.25);
}

.person-info { 
    flex: 1; 
    min-width: 0; 
}

.person-name { 
    font-size: 0.95rem; 
    font-weight: 700; 
    margin-bottom: 6px; 
    color: white;
}

.person-bar-bg { 
    flex: 1; 
    height: 10px; 
    background: rgba(255, 255, 255, 0.04); 
    border-radius: var(--radius-sm); 
    overflow: hidden; 
}

.person-bar { 
    height: 100%; 
    border-radius: var(--radius-sm); 
    transition: width 1.2s cubic-bezier(0.34, 1.56, 0.64, 1); 
    width: 0; 
    background: var(--gradient-primary);
}

.person-count { 
    font-size: 0.95rem; 
    font-weight: 800; 
    color: white; 
    min-width: 70px; 
    text-align: right; 
}

.person-percentage { 
    font-size: 0.85rem; 
    font-weight: 600; 
    color: var(--text-muted); 
    min-width: 50px; 
    text-align: right; 
}

.chart-container { 
    display: flex; 
    align-items: flex-end; 
    gap: 8px; 
    height: 220px; 
    padding-top: 24px; 
}

.chart-container.scrollable { 
    overflow-x: auto; 
    padding-bottom: 12px; 
    scrollbar-width: thin; 
    scrollbar-color: rgba(99, 102, 241, 0.3) transparent; 
}

.chart-container.scrollable .chart-bar-container { 
    min-width: 50px; 
    flex: 0 0 auto; 
}

.chart-bar-container { 
    flex: 1; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    height: 100%; 
}

.chart-bar-wrapper { 
    flex: 1; 
    width: 100%; 
    display: flex; 
    align-items: flex-end; 
    justify-content: center; 
}

.chart-bar {
    width: 60%; 
    min-height: 4px; 
    border-radius: 6px 6px 0 0;
    transition: height 1.2s cubic-bezier(0.34, 1.56, 0.64, 1); 
    position: relative; 
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.chart-bar:hover { 
    filter: brightness(1.2); 
    transform: scaleX(1.08);
}

.chart-bar::after {
    content: attr(data-count); 
    position: absolute; 
    top: -26px; 
    left: 50%; 
    transform: translateX(-50%);
    font-size: 0.72rem; 
    font-weight: 700; 
    color: white; 
    background: rgba(15, 23, 42, 0.85);
    padding: 3px 6px;
    border-radius: 4px;
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(4px);
    white-space: nowrap; 
    opacity: 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    pointer-events: none;
}

.chart-bar:hover::after { 
    opacity: 1; 
    transform: translateX(-50%) translateY(-2px);
}

.chart-label { 
    font-size: 0.78rem; 
    color: var(--text-muted); 
    margin-top: 8px; 
    font-weight: 600; 
}

.top-words { 
    display: flex; 
    flex-wrap: wrap; 
    gap: 10px; 
}

.word-tag {
    display: inline-flex; 
    align-items: center; 
    gap: 8px; 
    padding: 8px 16px; 
    border-radius: 24px;
    font-size: 0.9rem; 
    font-weight: 600; 
    transition: all var(--transition-spring); 
    cursor: default;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}

.word-tag:hover { 
    transform: scale(1.12) translateY(-3px); 
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
    z-index: 2;
}

.word-text { 
    font-weight: 700; 
}

.word-count { 
    font-size: 0.75rem; 
    opacity: 0.75; 
    background: rgba(255, 255, 255, 0.1);
    padding: 1px 6px;
    border-radius: 10px;
}

.json-key { color: var(--accent-cyan); font-weight: 600; }
.json-string { color: var(--accent-green); }
.json-number { color: var(--accent-orange); }
.json-boolean { color: var(--accent-pink); }
.json-null { color: var(--text-muted); font-style: italic; }

.file-item {
    border: 1px solid transparent;
}
.file-item:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.05);
}

.empty-state { 
    text-align: center; 
    padding: 60px 20px; 
    color: var(--text-muted); 
    font-size: 1rem; 
    font-weight: 500;
}

.hidden { 
    display: none !important; 
}

.mb-24 { 
    margin-bottom: 24px; 
}

@media (max-width: 768px) {
    .app { padding: 20px 16px 50px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .messages-row { grid-template-columns: 1fr; }
    .drop-zone { padding: 45px 20px; }
    .section-card { padding: 24px 20px; }
    .stat-card { padding: 20px; }
    .logo h1 { font-size: 1.35rem; }
    .global-stats-row { gap: 14px; }
    .conv-card-stats { display: none; }
    .search-bar { flex-direction: column; align-items: stretch; }
    .sort-select { width: 100%; }
    .steps { grid-template-columns: 1fr; }
}

@media (max-width: 480px) { 
    .stats-grid { grid-template-columns: 1fr; } 
    .global-stats-row { grid-template-columns: repeat(2, 1fr); }
}

#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

.drop-zone, .step, .stat-card, .conv-card, .section-card {
    position: relative;
    overflow: hidden;
}

.drop-zone::before, .step::before, .stat-card::before, .conv-card::before, .section-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(350px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(99, 102, 241, 0.12), transparent 80%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
    pointer-events: none;
    border-radius: inherit;
}

.drop-zone:hover::before, .step:hover::before, .stat-card:hover::before, .conv-card:hover::before, .section-card:hover::before {
    opacity: 1;
}

.holo-container {
    position: relative;
    width: 160px;
    height: 160px;
    margin: 0 auto 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.holo-container .upload-icon {
    margin: 0;
    z-index: 2;
}

.holo-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(var(--ring-scale, 1));
    border-radius: 50%;
    pointer-events: none;
    transition: all var(--transition-spring);
    box-shadow: inset 0 0 8px rgba(99, 102, 241, 0.05);
    z-index: 1;
}

.holo-ring-1 {
    width: 150px;
    height: 150px;
    border: 1px dashed rgba(99, 102, 241, 0.22);
    animation: rotateClockwise 18s linear infinite;
    --ring-scale: 1;
}

.holo-ring-2 {
    width: 126px;
    height: 126px;
    border: 1px dotted rgba(168, 85, 247, 0.35);
    animation: rotateCounterClockwise 11s linear infinite;
    --ring-scale: 1;
}

.holo-ring-3 {
    width: 102px;
    height: 102px;
    border: 1.5px solid rgba(6, 182, 212, 0.15);
    border-top-color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
    animation: rotateClockwise 5.5s linear infinite;
    --ring-scale: 1;
}

@keyframes rotateClockwise {
    from { transform: translate(-50%, -50%) scale(var(--ring-scale, 1)) rotate(0deg); }
    to { transform: translate(-50%, -50%) scale(var(--ring-scale, 1)) rotate(360deg); }
}

@keyframes rotateCounterClockwise {
    from { transform: translate(-50%, -50%) scale(var(--ring-scale, 1)) rotate(0deg); }
    to { transform: translate(-50%, -50%) scale(var(--ring-scale, 1)) rotate(-360deg); }
}

.drop-zone:hover .holo-ring-1 {
    border-color: rgba(99, 102, 241, 0.6);
    --ring-scale: 1.08;
}

.drop-zone:hover .holo-ring-2 {
    border-color: rgba(168, 85, 247, 0.7);
    --ring-scale: 1.06;
}

.drop-zone:hover .holo-ring-3 {
    border-color: var(--accent-cyan);
    --ring-scale: 1.02;
    box-shadow: 0 0 15px rgba(34, 211, 238, 0.35);
}

.steps {
    align-items: stretch;
}

.step {
    height: 100%;
}

#cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, rgba(168, 85, 247, 0.03) 40%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.5s ease;
    mix-blend-mode: screen;
    will-change: left, top;
}

.privacy-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.15);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    animation: fadeInDown 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.privacy-icon {
    color: var(--accent-green);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
}

.privacy-text {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.privacy-text strong {
    color: white;
}

.app-footer {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.footer-link:hover {
    color: var(--accent-purple);
    text-shadow: 0 0 10px rgba(168, 85, 247, 0.3);
}

.footer-dot {
    color: rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
}

.footer-copyright {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-copyright strong {
    color: var(--text-secondary);
}