:root{--app-bg:#f3f4f6;--app-bg-soft:#ffffff;--app-accent:#6366f1;--app-accent-soft:rgba(99,102,241,.08);--app-border-soft:rgba(148,163,184,.45);--app-text-main:#111827;--app-text-muted:#6b7280}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;color:var(--app-text-main);background:radial-gradient(circle at 0 0,#e0f2fe 0,transparent 55%),radial-gradient(circle at 100% 0,#fce7f3 0,transparent 55%),radial-gradient(circle at 0 100%,#dcfce7 0,transparent 55%),linear-gradient(#f3f4f6,#e5e7eb);overflow-x:hidden;position:relative}.app-wrapper{min-height:100vh;display:flex;flex-direction:column;position:relative;z-index:1}.app-shell{width:100%;max-width:1180px;margin:0 auto;padding-left:16px;padding-right:16px}.app-navbar{background:rgba(255,255,255,.92)!important;backdrop-filter:blur(18px);border-bottom:1px solid rgba(209,213,219,.8);box-shadow:0 18px 45px rgba(15,23,42,.1),0 0 0 1px rgba(148,163,184,.25)}.app-navbar .navbar-brand{font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:.9rem;color:#111827!important}.app-navbar .navbar-brand-icon{width:32px;height:32px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;margin-right:10px;background:radial-gradient(circle at 30% 0,#a5b4fc 0,#4f46e5 35%,#0ea5e9 100%);color:#f9fafb;box-shadow:0 10px 25px rgba(79,70,229,.45)}.app-navbar .nav-link{font-size:.9rem;color:#4b5563;padding:.35rem .9rem;border-radius:999px;transition:background .18s ease,color .18s ease,transform .12s ease,box-shadow .12s ease;display:inline-flex;align-items:center}.app-navbar .nav-link i{font-size:.95rem}.app-navbar .nav-link span{margin-left:.35rem}.app-navbar .nav-link:hover{color:#111827;background:rgba(209,213,219,.5);text-decoration:none;transform:translateY(-1px)}.app-navbar .nav-link.active{color:#111827;background:var(--app-accent-soft);box-shadow:0 10px 25px rgba(79,70,229,.25)}.navbar-toggler{border-radius:999px;border-color:rgba(148,163,184,.7)!important;padding:.2rem .6rem}.navbar-toggler-icon{filter:invert(40%)}.app-main{flex:1;padding:20px 0 32px}@media (min-width:768px){.app-main{padding:26px 0 40px}}.app-card{border-radius:22px;background:var(--app-bg-soft);border:1px solid var(--app-border-soft);box-shadow:0 22px 55px rgba(15,23,42,.12),0 0 0 1px rgba(255,255,255,.9);padding:22px 18px 24px;position:relative;z-index:2}@media (min-width:768px){.app-card{padding:26px 26px 28px}}.app-page-header{margin-bottom:18px}.app-page-title{font-size:1.5rem;font-weight:700;color:#020617;display:flex;align-items:center;flex-wrap:wrap;gap:.5rem}.app-page-title i{font-size:1.3rem;color:var(--app-accent)}.app-page-sub{margin-top:4px;font-size:.9rem;color:var(--app-text-muted);max-width:640px}.app-footer{border-top:1px solid rgba(209,213,219,.9);background:rgba(249,250,251,.96);font-size:.8rem;color:#6b7280;padding:10px 0 12px;position:relative;z-index:2}.app-footer a{color:#6b7280}.app-footer a:hover{color:#111827;text-decoration:none}.float-item{position:fixed;bottom:-40px;left:0;font-size:1.4rem;opacity:0;pointer-events:none;z-index:0;animation:floatUp 9s linear infinite;will-change:transform,opacity}@keyframes floatUp{0%{transform:translateY(0) translateX(0);opacity:0}10%{opacity:.9}90%{opacity:.9}100%{transform:translateY(-110vh) translateX(-20px);opacity:0}}.container{max-width:1000px;margin-top:50px}.form-group{text-align:left}.form-group input[type=file]{padding:10px}@media (max-width:767px){.navbar-nav{flex-direction:column;width:100%}.nav-item{width:100%}.nav-link{padding:10px;text-align:center}}