@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap";:root,[data-theme=dark]{--bg:#0b0f1a;--surface:#111827;--surface2:#1a2236;--surface3:#212f48;--border:#1e2d47;--accent:#22d3a4;--accent2:#3b82f6;--accent3:#f59e0b;--danger:#f87171;--text:#e8edf5;--text2:#8a9dbf;--text3:#4a5f80;--green:#22d3a4;--green-bg:#22d3a414;--green-border:#22d3a426;--blue:#3b82f6;--blue-bg:#3b82f614;--blue-border:#3b82f626;--amber:#f59e0b;--amber-bg:#f59e0b14;--amber-border:#f59e0b26;--sidebar-w:240px;--topbar-h:69px;--input-bg:#212f48;--input-border:#1e2d47;--modal-bg:#111827;--shadow:0 8px 32px #00000073}[data-theme=light]{--bg:#f5f7fc;--surface:#fff;--surface2:#f0f3fa;--surface3:#e5eaf5;--border:#dde3f0;--text:#0f172a;--text2:#475569;--text3:#94a3b8;--accent:#0ea47e;--accent2:#2563eb;--accent3:#d97706;--danger:#dc2626;--green:#0ea47e;--green-bg:#0ea47e14;--green-border:#0ea47e33;--blue:#2563eb;--blue-bg:#2563eb12;--blue-border:#2563eb2e;--amber:#d97706;--amber-bg:#d9770614;--amber-border:#d977062e;--input-bg:#f0f3fa;--input-border:#dde3f0;--modal-bg:#fff;--shadow:0 8px 32px #0000001f}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:-.01em;font-family:Inter,sans-serif;font-size:14px;overflow-x:hidden}.app-layout{height:100dvh;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);z-index:30;flex-direction:column;height:100dvh;transition:transform .28s cubic-bezier(.4,0,.2,1);display:flex;position:fixed;top:0;bottom:0;left:0;overflow:hidden}.sidebar-collapsed{width:64px!important;min-width:64px!important}.sidebar-collapsed .sidebar-logo{justify-content:center;padding:16px 0;display:flex}.sidebar-collapsed .sidebar-nav{align-items:center;padding:10px 4px}.sidebar-collapsed .nav-item{border-radius:10px;justify-content:center;width:44px;margin:0 auto;padding:13px 0}.sidebar-collapsed .sidebar-user{padding:10px 4px}.sidebar-collapsed .user-card{border-radius:10px;justify-content:center;width:44px;margin:0 auto;padding:10px 0}.sidebar-collapse-btn{display:flex}.main-content-expanded{margin-left:64px!important}.sidebar{transition:width .25s cubic-bezier(.4,0,.2,1),transform .28s cubic-bezier(.4,0,.2,1)}.main-content{transition:margin-left .25s cubic-bezier(.4,0,.2,1)}.sidebar-collapsed .nav-item{position:relative}@media (width<=768px){.sidebar-collapse-btn{display:none!important}.sidebar-collapsed{width:var(--sidebar-w)!important;min-width:var(--sidebar-w)!important}.main-content-expanded{margin-left:0!important}}.sidebar-overlay{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:29;background:#0000008c;animation:.15s fadeIn;display:none;position:fixed;inset:0}.main-content{margin-left:var(--sidebar-w);background:var(--bg);-webkit-overflow-scrolling:touch;flex:1;height:100dvh;overflow:hidden auto}.topbar{z-index:10;background:var(--bg);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:18px 32px;display:flex;position:sticky;top:0}.topbar-left{align-items:center;gap:12px;display:flex}.menu-btn{background:var(--surface2);border:1px solid var(--border);width:36px;height:36px;color:var(--text2);cursor:pointer;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;transition:all 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.15s;display:flex}.user-card:hover{background:var(--surface3)}.user-avatar{color:#fff;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:12px;font-weight:700;display:flex}.user-name{color:var(--text);font-size:12.5px;font-weight:500}.user-school{color:var(--text3);white-space:nowrap;text-overflow:ellipsis;max-width:110px;margin-top:1px;font-size:11px;overflow:hidden}.user-info{flex:1;min-width:0}.plan-badge{text-transform:uppercase;letter-spacing:.8px;white-space:nowrap;border-radius:20px;flex-shrink:0;padding:2px 7px;font-size:10px;font-weight:700}.btn{cursor:pointer;touch-action:manipulation;border:none;border-radius:8px;align-items:center;gap:6px;min-height:36px;padding:8px 16px;font-family:inherit;font-size:13px;font-weight:500;transition:all .15s;display:inline-flex}.btn-primary{background:var(--accent);color:#0b1a14;font-weight:600}.btn-primary:hover{filter:brightness(1.08)}.btn-outline{color:var(--text2);border:1px solid var(--border);background:0 0}.btn-outline:hover{background:var(--surface2);color:var(--text)}.btn-sm{padding:6px 12px;font-size:12px}.btn-danger{color:var(--danger);background:#f871711a;border:1px solid #f8717133}.btn-danger:hover{background:#f871712e}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:20px;overflow:hidden}.card-head{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:16px 20px 12px;display:flex}.card-title{color:var(--text);font-size:14px;font-weight:500}.card-sub{color:var(--text3);margin-top:2px;font-size:12px}.card-body{padding:20px}.badge-paid{color:var(--accent);background:#22d3a41a;border:1px solid #22d3a426;border-radius:20px;align-items:center;padding:3px 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var(--border);justify-content:space-between;align-items:flex-start;gap:12px;padding:18px 22px 14px;display:flex}.modal-title{color:var(--text);letter-spacing:-.3px;font-family:Inter,sans-serif;font-size:16px;font-weight:700}.modal-sub{color:var(--text3);margin-top:3px;font-size:12px}.modal-footer{border-top:1px solid var(--border);flex-wrap:wrap;justify-content:flex-end;gap:10px;padding:14px 22px;display:flex}.form-input,.settings-input,input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],input[type=tel],select,textarea{appearance:none;border-radius:8px;outline:none;width:100%;padding:10px 12px;font-family:Inter,sans-serif;font-size:16px;transition:border-color .15s;background:var(--input-bg)!important;border:1px solid var(--input-border)!important;color:var(--text)!important}@media (width>=641px){.form-input,.settings-input,input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],input[type=tel],select,textarea{font-size:13.5px}}input:focus,select:focus,textarea:focus{border-color:var(--accent)!important}::placeholder{opacity:1;color:var(--text3)!important}select option{background:var(--surface2);color:var(--text)}input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none}input[type=date]::-webkit-calendar-picker-indicator{filter:invert(.5)}input[type=date],input[type=number]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}[data-theme=light] input[type=date],[data-theme=light] input[type=number]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}.form-label,.settings-label{color:var(--text2);text-transform:uppercase;letter-spacing:.8px;margin-bottom:6px;font-size:11.5px;font-weight:600;display:block}.settings-modal{z-index:50;background:var(--modal-bg);border:1px solid var(--border);width:calc(100% - 32px);max-width:560px;box-shadow:var(--shadow);border-radius:16px;flex-direction:column;max-height:calc(100dvh - 32px);animation:.2s slideUp;display:flex;position:fixed;top:50%;left:50%;overflow:hidden;transform:translate(-50%,-50%)}.settings-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:flex-start;gap:12px;padding:18px 22px 14px;display:flex}.settings-title{color:var(--text);letter-spacing:-.2px;font-family:Inter,sans-serif;font-size:16px;font-weight:700}.settings-sub{color:var(--text3);margin-top:3px;font-size:12px}.settings-body{-webkit-overflow-scrolling:touch;flex:1;padding:0 22px 22px;overflow-y:auto}.settings-tabs{border-bottom:1px solid var(--border);-webkit-overflow-scrolling:touch;flex-wrap:wrap;flex-shrink:0;gap:0;margin:0 -22px 20px;padding:0 22px;display:flex;overflow-x:auto}.settings-tab{color:var(--text3);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px 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var(--border);color:var(--text2);cursor:pointer;border-radius:8px;flex:1;min-height:44px;padding:10px;font-family:inherit;font-size:13px;font-weight:500;transition:all .15s}.theme-option.active{color:var(--accent);background:#22d3a41a;border-color:#22d3a440}.auth-page{background:var(--bg);justify-content:center;align-items:center;min-height:100dvh;padding:24px;display:flex}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;width:100%;max-width:420px;padding:36px 32px}.auth-header{text-align:center;margin-bottom:28px}.auth-logo-wrap{background:#22d3a414;border:1px solid #22d3a433;border-radius:12px;justify-content:center;align-items:center;width:48px;height:48px;margin:0 auto 16px;display:flex}.auth-logo-wrap 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