:root{
  --navy:#0f172a;--muted:#64748b;--border:#e2e8f0;--card:#ffffff;--bg:#f8fafc;
  --primary:#4f46e5;--green:#10b981;--gold:#f59e0b;--purple:#7c3aed;--blue:#0ea5e9;
}
[data-theme="dark"]{--navy:#f8fafc;--muted:#cbd5e1;--border:#334155;--card:#111827;--bg:#020617;}
*{box-sizing:border-box} body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--navy)}
a{text-decoration:none}.public-page{background:#fff}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;color:var(--navy)}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--green),var(--primary));color:#fff}.hero{position:relative;overflow:hidden;padding:90px 0;background:radial-gradient(circle at top left,rgba(16,185,129,.16),transparent 30%),linear-gradient(135deg,#f8fafc,#eef2ff)}.hero h1{font-size:clamp(2.1rem,5vw,4.8rem);font-weight:900;letter-spacing:-.05em}.hero p{font-size:1.1rem;color:var(--muted)}.btn-rise{background:linear-gradient(135deg,var(--green),var(--primary));border:0;color:#fff;border-radius:14px;padding:.8rem 1.2rem;font-weight:700}.btn-rise:hover{color:#fff;filter:brightness(.96);transform:translateY(-1px)}.feature-card,.pricing-card,.premium-card{background:var(--card);border:1px solid var(--border);border-radius:24px;box-shadow:0 18px 50px rgba(15,23,42,.07);padding:24px}.app-shell{min-height:100vh;display:flex}.sidebar{position:fixed;inset:0 auto 0 0;width:280px;background:var(--card);border-right:1px solid var(--border);padding:24px;flex-direction:column;z-index:10}.sidebar-nav{display:grid;gap:8px;margin-top:28px}.sidebar-nav a,.sidebar-footer a{display:flex;align-items:center;gap:12px;color:var(--muted);padding:12px 14px;border-radius:14px;font-weight:650}.sidebar-nav a:hover,.sidebar-footer a:hover{background:#eef2ff;color:var(--primary)}[data-theme="dark"] .sidebar-nav a:hover,[data-theme="dark"] .sidebar-footer a:hover{background:#1e293b}.sidebar-footer{margin-top:auto;display:grid;gap:8px}.logout-link{color:#ef4444!important}.app-main{width:100%;margin-left:280px}.page-header{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:24px}.page-title{font-weight:850;letter-spacing:-.03em}.stat-card{background:var(--card);border:1px solid var(--border);border-radius:24px;padding:22px;box-shadow:0 16px 40px rgba(15,23,42,.06);height:100%}.stat-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--green),var(--primary));font-size:1.35rem}.stat-card h3{font-weight:850}.text-muted{color:var(--muted)!important}.habit-card{background:var(--card);border:1px solid var(--border);border-radius:22px;padding:18px;transition:.2s;box-shadow:0 12px 30px rgba(15,23,42,.05)}.habit-card:hover{transform:translateY(-2px);box-shadow:0 18px 46px rgba(15,23,42,.08)}.habit-icon{width:44px;height:44px;border-radius:15px;display:grid;place-items:center;color:#fff}.progress{height:10px;border-radius:20px}.mobile-nav{position:fixed;left:12px;right:12px;bottom:12px;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border:1px solid var(--border);border-radius:22px;display:grid;grid-template-columns:repeat(5,1fr);box-shadow:0 20px 60px rgba(15,23,42,.18);z-index:30}.mobile-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 4px;color:var(--muted);font-size:.72rem}.mobile-nav i{font-size:1.15rem;color:var(--primary)}.form-control,.form-select{border-radius:14px;border-color:var(--border);padding:.75rem .9rem}.table{color:var(--navy)}.badge-soft{background:#ecfdf5;color:#047857;border-radius:999px;padding:.45rem .7rem;font-weight:700}.empty-state{border:1px dashed var(--border);border-radius:24px;padding:36px;text-align:center;background:var(--card)}@media(max-width:991px){.app-main{margin-left:0;padding-bottom:90px}.page-header{align-items:flex-start;flex-direction:column}.stat-card{padding:18px}.hero{padding:64px 0}}