:root {
    --bg-primary:#05060a;--bg-secondary:#0a0c14;--bg-tertiary:#10131e;--bg-elevated:#161a28;
    --bg-hover:#1c2133;--bg-input:#0d0f18;--bg-glass:rgba(10,12,20,0.7);
    --text-primary:#e4e6f0;--text-secondary:#8b8fa8;--text-muted:#4e5270;
    --accent:#6c5ce7;--accent-hover:#8b7cf7;--accent-subtle:rgba(108,92,231,0.08);
    --accent-glow:rgba(108,92,231,0.3);--accent-bright:#a78bfa;
    --cyan:#22d3ee;--cyan-subtle:rgba(34,211,238,0.08);--cyan-glow:rgba(34,211,238,0.2);
    --green:#10b981;--green-subtle:rgba(16,185,129,0.1);
    --red:#ef4444;--red-subtle:rgba(239,68,68,0.1);
    --yellow:#f59e0b;--yellow-subtle:rgba(245,158,11,0.1);
    --border:rgba(255,255,255,0.04);--border-hover:rgba(255,255,255,0.08);
    --border-glow:rgba(108,92,231,0.2);
    --shadow-sm:0 1px 3px rgba(0,0,0,.4);--shadow-md:0 8px 32px rgba(0,0,0,.5);
    --shadow-glow:0 0 30px var(--accent-glow);--shadow-cyan:0 0 30px var(--cyan-glow);
    --radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;
    --sidebar-width:260px;--header-height:56px;
    --transition:0.25s cubic-bezier(0.4,0,0.2,1);
    --font-main:'Space Grotesk',system-ui,sans-serif;
    --font-mono:'JetBrains Mono',monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:15px;-webkit-font-smoothing:antialiased;scroll-behavior:smooth}
body{font-family:var(--font-main);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}
body::before{content:'';position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 20% 0%,rgba(108,92,231,0.06) 0%,transparent 50%),radial-gradient(ellipse at 80% 100%,rgba(34,211,238,0.04) 0%,transparent 50%);pointer-events:none;z-index:0}
a{color:var(--accent-bright);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--cyan)}
::selection{background:var(--accent);color:#fff}
.app-layout{display:flex;min-height:100vh;position:relative;z-index:1}

/* Sidebar */
.sidebar{width:var(--sidebar-width);background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:width var(--transition)}
.sidebar-header{padding:20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);min-height:68px}
.logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.25rem;color:var(--text-primary);white-space:nowrap;letter-spacing:-0.02em}
.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--accent),var(--cyan));border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:#fff;flex-shrink:0;box-shadow:var(--shadow-glow)}
.logo-accent{background:linear-gradient(135deg,var(--accent-bright),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.sidebar-balance{padding:16px;margin:16px;background:linear-gradient(135deg,rgba(108,92,231,0.1),rgba(34,211,238,0.05));border:1px solid var(--border-glow);border-radius:var(--radius-lg);position:relative;overflow:hidden}
.sidebar-balance::before{content:'';position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,var(--accent-glow) 0%,transparent 70%);opacity:0.3;pointer-events:none}
.balance-label{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.12em;font-weight:500}
.balance-amount{font-size:1.6rem;font-weight:700;color:#fff;margin:6px 0 12px;font-family:var(--font-mono)}
.sidebar-nav{flex:1;padding:10px;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:14px;padding:11px 14px;border-radius:var(--radius-md);color:var(--text-secondary);font-size:.88rem;font-weight:500;transition:all var(--transition);white-space:nowrap;position:relative}
.nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}
.nav-item.active{background:linear-gradient(135deg,rgba(108,92,231,0.15),rgba(34,211,238,0.05));color:var(--accent-bright);border:1px solid var(--border-glow)}
.nav-item.active::before{content:'';position:absolute;left:0;top:25%;bottom:25%;width:3px;background:linear-gradient(to bottom,var(--accent),var(--cyan));border-radius:0 3px 3px 0}
.nav-icon{flex-shrink:0;display:flex;align-items:center;font-size:1.1rem}
.nav-divider{height:1px;background:linear-gradient(90deg,transparent,var(--border-hover),transparent);margin:10px 14px}
.sidebar-footer{padding:14px;border-top:1px solid var(--border)}
.user-info{display:flex;align-items:center;gap:10px;padding:8px 12px;margin-bottom:6px}
.user-avatar{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--cyan));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.85rem;flex-shrink:0;text-transform:uppercase}
.user-name{font-size:.85rem;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis}

/* Mobile */
.mobile-header{display:none;position:fixed;top:0;left:0;right:0;height:var(--header-height);background:var(--bg-glass);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:0 16px;align-items:center;gap:12px;z-index:90}
.hamburger{background:none;border:none;color:var(--text-primary);cursor:pointer;padding:4px;font-size:1.3rem}
.mobile-logo{font-weight:700;font-size:1.1rem;flex:1}
.mobile-balance{font-weight:600;font-size:.85rem;color:var(--cyan);background:var(--cyan-subtle);padding:4px 12px;border-radius:var(--radius-sm);font-family:var(--font-mono)}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(4px);z-index:99}
@media(max-width:768px){.mobile-header{display:flex}.sidebar-overlay{display:block}.sidebar{transform:translateX(-100%);transition:transform var(--transition)}.sidebar.mobile-open{transform:translateX(0)}.main-content{margin-left:0!important;padding-top:calc(var(--header-height)+16px)!important}}

/* Main */
.main-content{flex:1;margin-left:var(--sidebar-width);padding:32px 36px;min-height:100vh;transition:margin-left var(--transition)}
.page-header{margin-bottom:32px}
.page-title{font-size:1.8rem;font-weight:700;letter-spacing:-0.03em;background:linear-gradient(135deg,var(--text-primary),var(--text-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-subtitle{color:var(--text-secondary);font-size:.9rem;margin-top:6px}

/* Cards */
.card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:all var(--transition);position:relative}
.card:hover{border-color:var(--border-hover)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-title{font-weight:600;font-size:1rem;letter-spacing:-0.01em}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.main-content{padding:16px}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border:none;border-radius:var(--radius-md);font-family:var(--font-main);font-size:.88rem;font-weight:600;cursor:pointer;transition:all var(--transition);white-space:nowrap;position:relative;overflow:hidden}
.btn::before{content:'';position:absolute;inset:0;opacity:0;transition:opacity var(--transition)}
.btn:hover::before{opacity:1}
.btn-primary{background:linear-gradient(135deg,var(--accent),#8b5cf6);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-2px)}
.btn-primary::before{background:linear-gradient(135deg,#8b5cf6,var(--cyan))}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--cyan));color:#fff}
.btn-accent:hover{box-shadow:var(--shadow-glow)}
.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg-hover);border-color:var(--border-hover);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-hover);color:var(--text-primary)}
.btn-sm{padding:7px 16px;font-size:.8rem}.btn-lg{padding:15px 32px;font-size:1rem;border-radius:var(--radius-lg)}
.btn-full{width:100%}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none!important}

/* Forms */
.form-group{margin-bottom:16px}.form-label{display:block;font-size:.82rem;font-weight:500;color:var(--text-muted);margin-bottom:6px;text-transform:uppercase;letter-spacing:.05em}
.form-input,.form-select,.form-textarea{width:100%;padding:11px 16px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-main);font-size:.9rem;transition:all var(--transition)}
.form-input:focus,.form-select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle),var(--shadow-glow)}

/* Upload */
.upload-zone{border:2px dashed var(--border-hover);border-radius:var(--radius-xl);padding:52px 24px;text-align:center;cursor:pointer;transition:all var(--transition);position:relative;background:var(--bg-tertiary)}
.upload-zone:hover,.upload-zone.drag-over{border-color:var(--accent);background:var(--accent-subtle);box-shadow:var(--shadow-glow)}
.upload-zone input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer}
.upload-icon{font-size:3rem;margin-bottom:12px;filter:grayscale(0.3)}
.upload-title{font-weight:600;font-size:1.1rem;margin-bottom:6px}
.upload-hint{color:var(--text-muted);font-size:.85rem}

/* Badges */
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:.72rem;font-weight:600;letter-spacing:.03em;text-transform:uppercase;border:1px solid transparent}
.badge-pending{background:var(--yellow-subtle);color:var(--yellow);border-color:rgba(245,158,11,0.15)}
.badge-processing{background:var(--accent-subtle);color:var(--accent-bright);border-color:var(--border-glow)}
.badge-completed{background:var(--green-subtle);color:var(--green);border-color:rgba(16,185,129,0.15)}
.badge-failed{background:var(--red-subtle);color:var(--red);border-color:rgba(239,68,68,0.15)}

/* Progress */
.progress-bar{height:6px;background:var(--bg-tertiary);border-radius:999px;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--cyan));border-radius:999px;transition:width .5s ease;box-shadow:0 0 10px var(--accent-glow)}

/* Table */
.table-wrapper{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th{text-align:left;padding:10px 14px;font-size:.72rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--border)}
td{padding:12px 14px;font-size:.88rem;border-bottom:1px solid var(--border)}
tr:hover td{background:var(--bg-hover)}

/* Task cards */
.task-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;display:flex;align-items:center;gap:16px;transition:all var(--transition)}
.task-card:hover{border-color:var(--border-glow);background:var(--bg-tertiary);box-shadow:var(--shadow-sm)}
.task-icon{width:42px;height:42px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--accent-subtle),var(--cyan-subtle));display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.2rem}
.task-info{flex:1;min-width:0}.task-name{font-weight:600;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.task-meta{color:var(--text-muted);font-size:.78rem;margin-top:3px;font-family:var(--font-mono)}

/* Chat */
.chat-container{display:flex;flex-direction:column;height:calc(100vh - 56px)}
.chat-messages{flex:1;overflow-y:auto;padding:20px 0}
.chat-message{display:flex;gap:12px;margin-bottom:20px;max-width:800px}
.chat-message.user{flex-direction:row-reverse}
.chat-bubble{padding:14px 18px;border-radius:var(--radius-lg);font-size:.9rem;line-height:1.7;max-width:75%}
.chat-message.user .chat-bubble{background:linear-gradient(135deg,var(--accent),#8b5cf6);color:#fff;border-bottom-right-radius:4px}
.chat-message.assistant .chat-bubble{background:var(--bg-tertiary);border:1px solid var(--border);border-bottom-left-radius:4px}
.chat-input-area{padding:16px 0;border-top:1px solid var(--border)}
.chat-input-wrapper{display:flex;gap:10px;max-width:800px}
.chat-input{flex:1;padding:13px 18px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-lg);color:var(--text-primary);font-family:var(--font-main);font-size:.9rem;resize:none;min-height:48px;max-height:200px}
.chat-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle)}

/* Mode cards */
.mode-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;cursor:pointer;transition:all var(--transition);position:relative;overflow:hidden}
.mode-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--cyan));opacity:0;transition:opacity var(--transition)}
.mode-card:hover{border-color:var(--border-glow);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.mode-card:hover::before{opacity:1}
.mode-icon{font-size:2rem;margin-bottom:14px}.mode-name{font-weight:700;font-size:1rem;margin-bottom:6px}
.mode-desc{color:var(--text-secondary);font-size:.84rem;line-height:1.6}
.mode-price{color:var(--cyan);font-weight:600;font-size:.85rem;margin-top:14px;font-family:var(--font-mono)}
.pro-badge{position:absolute;top:14px;right:14px;background:linear-gradient(135deg,var(--accent),var(--cyan));color:#fff;padding:3px 10px;border-radius:999px;font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}

/* Alerts */
.alert{padding:12px 18px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:space-between;font-size:.88rem;margin-bottom:8px;border:1px solid transparent}
.alert-success{background:var(--green-subtle);color:var(--green);border-color:rgba(16,185,129,0.15)}
.alert-error,.alert-danger{background:var(--red-subtle);color:var(--red);border-color:rgba(239,68,68,0.15)}
.alert-close{background:none;border:none;color:inherit;cursor:pointer;font-size:1.2rem;opacity:.7}

/* Stats */
.stat-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;position:relative;overflow:hidden}
.stat-card::after{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--cyan));opacity:0.5}
.stat-label{font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;font-weight:500}
.stat-value{font-size:1.9rem;font-weight:700;margin-top:6px;letter-spacing:-0.03em;font-family:var(--font-mono)}
.stat-value.accent{background:linear-gradient(135deg,var(--accent-bright),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-value.green{color:var(--green)}

/* Auth */
.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);padding:20px}
.auth-page::before{content:'';position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 50% 0%,rgba(108,92,231,0.08) 0%,transparent 60%);pointer-events:none}
.auth-card{background:var(--bg-glass);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius-xl);padding:44px;width:100%;max-width:440px;position:relative;z-index:1}
.auth-card .logo{justify-content:center;font-size:1.5rem;margin-bottom:36px}
.auth-divider{display:flex;align-items:center;gap:12px;margin:22px 0;color:var(--text-muted);font-size:.82rem}
.auth-divider::before,.auth-divider::after{content:'';flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--border-hover),transparent)}
.social-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:12px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-tertiary);color:var(--text-primary);font-family:var(--font-main);font-size:.88rem;font-weight:500;cursor:pointer;transition:all var(--transition);margin-bottom:8px}
.social-btn:hover{background:var(--bg-hover);border-color:var(--border-hover);transform:translateY(-1px)}

/* Pricing */
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.pricing-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-xl);padding:36px;text-align:center;transition:all var(--transition);position:relative;overflow:hidden}
.pricing-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--cyan));opacity:0;transition:opacity var(--transition)}
.pricing-card:hover{border-color:var(--border-glow);transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.pricing-card:hover::before{opacity:1}
.pricing-card.featured{border-color:var(--border-glow)}
.pricing-card.featured::before{opacity:1}
.pricing-name{font-size:1.1rem;font-weight:700;margin-bottom:10px;letter-spacing:-0.01em}
.pricing-price{font-size:2.2rem;font-weight:700;margin-bottom:4px;font-family:var(--font-mono);background:linear-gradient(135deg,var(--accent-bright),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.pricing-unit{font-size:.82rem;color:var(--text-muted);margin-bottom:24px}
.pricing-features{list-style:none;text-align:left}
.pricing-features li{padding:7px 0;font-size:.88rem;color:var(--text-secondary);display:flex;align-items:center;gap:10px}
.pricing-features li::before{content:'✦';color:var(--cyan);font-size:.7rem}

/* Scrollbar */
::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}

/* Animations */
@keyframes fadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .4s ease forwards}
@keyframes glow{0%,100%{opacity:0.5}50%{opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}
.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite;display:inline-block}

/* Utility */
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}
.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}
.gap-1{gap:8px}.gap-2{gap:16px}.flex{display:flex}.flex-col{flex-direction:column}
.items-center{align-items:center}.justify-between{justify-content:space-between}
.text-center{text-align:center}.text-sm{font-size:.85rem}.text-muted{color:var(--text-muted)}
.text-accent{color:var(--accent-bright)}.text-green{color:var(--green)}.text-red{color:var(--red)}
.font-bold{font-weight:700}.truncate{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.table-wrapper{overflow-x:auto}.hidden{display:none!important}
.gradient-text{background:linear-gradient(135deg,var(--accent-bright),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}