*{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#f5f6f8;--card:#fff;--primary:#1a6b3c;--primary-hover:#145a30;--accent:#e8f5ee;--text:#1e1e1e;--muted:#6b7280;--border:#dde1e6;--danger:#c0392b;--danger-hover:#a93226;--radius:8px;--shadow:0 1px 3px rgba(0,0,0,.08)}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}
a{color:var(--primary);text-decoration:none}

/* Layout */
.wrap{max-width:800px;margin:0 auto;padding:16px}
header{background:var(--primary);color:#fff;padding:14px 20px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10}
header h1{font-size:1.15rem;font-weight:700;letter-spacing:.3px}
header button{background:rgba(255,255,255,.18);border:none;color:#fff;padding:6px 14px;border-radius:var(--radius);cursor:pointer;font-size:.85rem}
header button:hover{background:rgba(255,255,255,.3)}

/* Cards */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}
.card h2{font-size:1rem;margin-bottom:14px;color:var(--primary);border-bottom:1px solid var(--border);padding-bottom:8px}

/* Stats row */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center;box-shadow:var(--shadow)}
.stat .val{font-size:1.5rem;font-weight:700;color:var(--primary)}
.stat .label{font-size:.78rem;color:var(--muted);margin-top:2px}

/* Forms */
.form-group{margin-bottom:12px}
label{display:block;font-size:.82rem;font-weight:600;margin-bottom:4px;color:var(--muted)}
input,select{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:.9rem;background:#fff}
input:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--accent)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* Buttons */
btn,button[type=submit],.btn{display:inline-block;padding:9px 18px;border:none;border-radius:var(--radius);cursor:pointer;font-size:.88rem;font-weight:600;transition:background .15s}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}
.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}
.btn-sm{padding:5px 12px;font-size:.8rem}

/* Tables */
table{width:100%;border-collapse:collapse;font-size:.85rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}
th{font-weight:600;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.4px}
tr:hover{background:var(--accent)}

/* Tabs */
.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:16px}
.tab{padding:10px 18px;cursor:pointer;font-size:.88rem;font-weight:600;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .15s}
.tab.active{color:var(--primary);border-bottom-color:var(--primary)}
.tab:hover{color:var(--primary)}
.tab-content{display:none}
.tab-content.active{display:block}

/* Login page */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#1a6b3c 0%,#0d4a28 100%)}
.login-box{background:#fff;padding:36px 32px;border-radius:12px;width:340px;box-shadow:0 8px 30px rgba(0,0,0,.15)}
.login-box h1{text-align:center;color:var(--primary);margin-bottom:6px;font-size:1.4rem}
.login-box p{text-align:center;color:var(--muted);font-size:.82rem;margin-bottom:22px}
.login-box .btn-primary{width:100%;padding:11px}

/* Alerts */
.alert{padding:10px 14px;border-radius:var(--radius);font-size:.85rem;margin-bottom:12px}
.alert-ok{background:#d4edda;color:#155724;border:1px solid #c3e6cb}
.alert-err{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}

/* Badge */
.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:.72rem;font-weight:700}
.badge-active{background:#fef3cd;color:#856404}
.badge-paid{background:#d4edda;color:#155724}

/* Modal overlay */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:100;opacity:0;transition:opacity .2s}
.modal-overlay.visible{opacity:1}
.modal{background:#fff;border-radius:12px;padding:28px 24px;width:360px;max-width:92vw;box-shadow:0 12px 40px rgba(0,0,0,.2);transform:translateY(12px);transition:transform .2s}
.modal-overlay.visible .modal{transform:translateY(0)}
.modal h2{font-size:1.1rem;color:var(--primary);margin-bottom:4px}
.modal p{font-size:.82rem;color:var(--muted);margin-bottom:16px}
.modal .close-btn{position:absolute;top:12px;right:16px;background:none;border:none;font-size:1.2rem;cursor:pointer;color:var(--muted);padding:4px}
.modal .close-btn:hover{color:var(--text)}

/* Stepper dots */
.steps{display:flex;gap:8px;justify-content:center;margin-bottom:18px}
.step-dot{width:8px;height:8px;border-radius:50%;background:var(--border)}
.step-dot.active{background:var(--primary);width:24px;border-radius:4px}

/* Forgot password link */
.forgot-link{display:block;text-align:center;margin-top:12px;font-size:.82rem;color:var(--primary);cursor:pointer;text-decoration:underline}
.forgot-link:hover{color:var(--primary-hover)}

/* File cards grid */
.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.file-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:8px;transition:border-color .15s,box-shadow .15s}
.file-card:hover{border-color:var(--primary);box-shadow:0 2px 8px rgba(26,107,60,.12)}
.file-icon{font-size:1.8rem;line-height:1}
.file-card .file-title{font-weight:700;font-size:.9rem;color:var(--text);word-break:break-word}
.file-card .file-desc{font-size:.78rem;color:var(--muted);line-height:1.4}
.file-card .file-meta{font-size:.72rem;color:var(--muted);display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:4px;border-top:1px solid var(--border)}
.file-card .file-actions{display:flex;gap:6px;margin-top:4px}
.file-card .file-actions button{flex:1}

/* Drop zone */
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:24px;text-align:center;color:var(--muted);font-size:.85rem;cursor:pointer;transition:border-color .15s,background .15s}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary);background:var(--accent)}
.drop-zone input[type=file]{display:none}
.drop-zone .drop-icon{font-size:2rem;margin-bottom:6px}

/* Util */
.mt{margin-top:12px}.mb{margin-bottom:12px}
.hidden{display:none!important}
.text-right{text-align:right}
.text-muted{color:var(--muted)}

/* Mobile */
@media(max-width:500px){
  .wrap{padding:10px}
  .row{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .login-box{width:92%;padding:28px 20px}
  .modal{width:92vw;padding:22px 18px}
  header{padding:10px 14px}
  .tabs{overflow-x:auto}
  .tab{padding:8px 12px;font-size:.82rem;white-space:nowrap}
  .file-grid{grid-template-columns:1fr}
}