:root{--bg: #ffffff;--bg-elevated: #ffffff;--bg-soft: #f4f4f4;--border: #e2e2e2;--text: #1a1a1a;--muted: #6b6b6b;--accent: #b8924a;--accent-hover: #c9a46a;--accent-soft: rgba(184, 146, 74, .12);--danger: #c45c4a;--success: #6a9a5a;--radius: 10px;--shadow: 0 8px 28px rgba(0, 0, 0, .08);--font: "Rubik", "Noto Sans Arabic", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:var(--font);background:#fff;color:var(--text);line-height:1.5}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh;align-items:start}.sidebar{position:sticky;top:0;height:100vh;overflow-y:auto;background:#fff;border-inline-end:1px solid var(--border);padding:1.5rem 1rem;display:flex;flex-direction:column;gap:1.5rem}.brand{padding:.35rem .5rem .75rem;text-align:center}.brand-logo{display:block;width:100%;max-width:180px;height:auto;margin:0 auto}.brand-name{font-size:1.55rem;font-weight:700;letter-spacing:.08em;color:var(--accent);margin:0}.brand-tag{margin:.5rem 0 0;color:var(--muted);font-size:.8rem}.nav-links{display:flex;flex-direction:column;gap:.35rem}.nav-links a{padding:.7rem .9rem;border-radius:8px;color:var(--muted);transition:background .15s,color .15s}.nav-links a:hover,.nav-links a.active{background:var(--accent-soft);color:var(--text)}.sidebar-footer{margin-top:auto;display:flex;flex-direction:column;gap:.5rem;padding:.5rem}.sidebar-footer .btn-ghost{color:var(--text);border-color:var(--border)}.sidebar-footer .btn-ghost:hover{background:var(--bg-soft)}.sidebar .lang-toggle{background:var(--bg-soft);border-color:var(--border)}.sidebar .lang-toggle button{color:var(--muted)}.main{padding:1.5rem 2rem 3rem;overflow-x:hidden}.topbar{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.5rem}.page-title{margin:0;font-size:1.6rem;font-weight:600}.lang-toggle{display:inline-flex;background:var(--bg-elevated);border:1px solid var(--border);border-radius:999px;overflow:hidden}.lang-toggle button{border:0;background:transparent;color:var(--muted);padding:.4rem .85rem;cursor:pointer}.lang-toggle button.active{background:var(--accent);color:#0a0a0a;font-weight:600}.card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1.5rem}.stat{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 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var(--border);border-radius:8px;color:var(--text);padding:.6rem .75rem}.textarea{min-height:90px;resize:vertical}.input:focus,.select:focus,.textarea:focus{outline:2px solid rgba(201,164,106,.35);border-color:var(--accent)}.label{display:block;margin-bottom:.35rem;color:var(--muted);font-size:.88rem}.field{margin-bottom:.9rem}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem 1rem}.form-grid .full{grid-column:1 / -1}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{text-align:start;padding:.75rem .6rem;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:500;font-size:.85rem}.muted{color:var(--muted)}.error{color:var(--danger);margin:.5rem 0}.badge{display:inline-block;padding:.2rem .55rem;border-radius:999px;background:var(--bg-soft);border:1px solid var(--border);font-size:.8rem}.login-page{min-height:100vh;display:grid;place-items:center;padding:1.5rem;background:#fff}.login-card{width:min(400px,100%);background:#fff;border:1px solid var(--border);border-radius:14px;padding:2rem;box-shadow:var(--shadow);color:var(--text)}.login-logo{display:block;width:min(260px,100%);height:auto;margin:0 auto 1.25rem}.login-card .label{color:var(--muted)}.login-card .input{background:var(--bg);border-color:var(--border);color:var(--text)}.login-card .brand-name{text-align:center;font-size:2rem}.login-card .brand-tag{text-align:center;margin-bottom:1.5rem}.calc-layout{display:grid;grid-template-columns:1.4fr .9fr;gap:1.25rem;align-items:start}.calc-sections{display:flex;flex-direction:column;gap:1rem}.section-title{margin:0 0 .85rem;font-size:1.05rem;color:var(--accent)}.result-panel{position:sticky;top:1rem}.result-big{font-size:2rem;font-weight:700;color:var(--accent);margin:.25rem 0 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var(--border);border-radius:12px;padding:1.25rem}.modal h2{margin:0 0 1rem}.modal-actions{display:flex;gap:.5rem;justify-content:flex-end;margin-top:1rem}.empty{text-align:center;color:var(--muted);padding:2rem 1rem}@media(max-width:960px){.app-shell{grid-template-columns:1fr}.sidebar{position:static;height:auto;overflow-y:visible;border-inline-end:0;border-bottom:1px solid var(--border)}.nav-links{flex-direction:row;flex-wrap:wrap}.sidebar-footer{margin-top:0;flex-direction:row;align-items:center}.stats{grid-template-columns:repeat(2,1fr)}.calc-layout,.form-grid{grid-template-columns:1fr}.result-panel{position:static}.main{padding:1rem}}