@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--color-primary:#1c4228;--color-primary-hover:#14301d;--color-primary-light:#2e623f;--color-primary-soft:#f0f7f3;--color-primary-glow:#1c422826;--color-secondary:#475569;--color-bg-main:#f8fafc;--color-bg-card:#fff;--color-bg-sidebar:#132a1a;--color-text-main:#0f172a;--color-text-muted:#475569;--color-text-light:#94a3b8;--color-text-white:#fff;--color-border:#cbd5e1;--color-border-light:#e2e8f0;--color-success:#15803d;--color-success-bg:#f0fdf4;--color-success-border:#bbf7d0;--color-warning:#b45309;--color-warning-bg:#fffbeb;--color-warning-border:#fef3c7;--color-danger:#b91c1c;--color-danger-bg:#fef2f2;--color-danger-border:#fee2e2;--color-info:#0369a1;--color-info-bg:#f0f9ff;--color-info-border:#e0f2fe;--shadow-sm:0 1px 3px #0000000a;--shadow-md:0 4px 12px #0000000d, 0 2px 4px #00000008;--shadow-lg:0 12px 24px #00000014, 0 4px 8px #0000000a;--border-radius-sm:.375rem;--border-radius-md:.5rem;--border-radius-lg:.75rem;--border-radius-xl:1rem}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-bg-main);color:var(--color-text-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--color-bg-main)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--border-radius-md)}::-webkit-scrollbar-thumb:hover{background:var(--color-secondary)}h1,h2,h3,h4,h5,h6{color:var(--color-text-main);font-weight:600}p{color:var(--color-text-muted)}a{color:var(--color-primary-light);text-decoration:none}a:hover{text-decoration:underline}.app-container{height:100vh;display:flex;overflow:hidden}.main-content{flex-direction:column;flex:1;min-width:0;display:flex}.content-body{flex:1;padding:1.5rem 2rem;overflow-y:auto}.sidebar{background-color:var(--color-bg-sidebar);width:260px;color:var(--color-text-white);border-right:1px solid #ffffff0d;flex-direction:column;display:flex;overflow:hidden}.sidebar-brand{border-bottom:1px solid #ffffff0d;align-items:center;gap:.75rem;padding:1.5rem;font-size:1.25rem;font-weight:700;display:flex}.sidebar-logo{background-color:var(--color-primary-light);border-radius:var(--border-radius-md);color:#fff;justify-content:center;align-items:center;width:32px;height:32px;font-weight:800;display:flex}.sidebar-menu{flex-direction:column;flex:1;gap:.25rem;padding:1rem;display:flex}.sidebar-item{color:#ffffffb3;border-radius:var(--border-radius-md);cursor:pointer;align-items:center;gap:.75rem;padding:.75rem 1rem;font-size:.95rem;font-weight:500;transition:all .2s;display:flex}.sidebar-item:hover{color:var(--color-text-white);background-color:#ffffff0d;text-decoration:none}.sidebar-item.active{background-color:var(--color-primary);color:var(--color-text-white)}.sidebar-footer{background-color:#0003;border-top:1px solid #ffffff0d;padding:1rem}.top-bar{background-color:var(--color-bg-card);border-bottom:1px solid var(--color-border-light);height:64px;box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:0 2rem;display:flex}.top-bar-title{align-items:center;gap:.5rem;font-size:1.15rem;font-weight:600;display:flex}.top-bar-actions{align-items:center;gap:1.25rem;display:flex}.role-badge{border-radius:var(--border-radius-sm);background-color:var(--color-border-light);color:var(--color-text-muted);padding:.25rem .5rem;font-size:.75rem;font-weight:600}.role-badge.teacher{background-color:var(--color-primary-soft);color:var(--color-primary-light);border:1px solid #2e623f33}.role-badge.admin{background-color:var(--color-info-bg);color:var(--color-info);border:1px solid var(--color-info-border)}.user-profile{cursor:pointer;border-radius:var(--border-radius-lg);border:1px solid var(--color-border-light);align-items:center;gap:.75rem;padding:.35rem .75rem;transition:all .2s;display:flex}.user-profile:hover{background-color:var(--color-bg-main)}.card{background-color:var(--color-bg-card);border-radius:var(--border-radius-xl);box-shadow:var(--shadow-sm);border:1px solid #0000000a;margin-bottom:1.5rem;padding:1.5rem;transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .25s cubic-bezier(.4,0,.2,1),border-color .25s}.card:hover{box-shadow:var(--shadow-md);border-color:#1c422814;transform:translateY(-2px)}.card-header{border-bottom:1px solid 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solid var(--color-border);width:32px;height:32px;color:var(--color-text-light);z-index:2;border-radius:50%;justify-content:center;align-items:center;font-size:.75rem;font-weight:700;transition:all .2s;display:flex}.stepper-step.active .stepper-circle{background-color:var(--color-primary);border-color:var(--color-primary);color:#fff;box-shadow:0 0 0 4px var(--color-primary-glow)}.stepper-step.completed .stepper-circle{background-color:var(--color-primary-light);border-color:var(--color-primary-light);color:#fff}.stepper-label{color:var(--color-text-light);text-align:center;max-width:90px;font-size:.65rem;font-weight:500;line-height:1.25}.stepper-step.active .stepper-label{color:var(--color-primary);font-weight:600}.stepper-step.completed .stepper-label{color:var(--color-text-main)}.upload-zone{border:2px dashed 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.75rem;font-size:.75rem;position:absolute;bottom:10px;left:50%;transform:translate(-50%)}.camera-toolbar{z-index:10;background:linear-gradient(#000000b3 0%,#0000 100%);justify-content:space-between;align-items:center;width:100%;padding:1rem;display:flex;position:absolute;left:0}.camera-toolbar.top{top:0}.camera-toolbar.bottom{padding-bottom:max(1.5rem, env(safe-area-inset-bottom));background:linear-gradient(#0000 0%,#000000eb 100%);flex-direction:column;align-items:stretch;bottom:0}.icon-btn{cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:.5rem;transition:background .2s;display:flex}.icon-btn:hover{background:#fff3}.camera-counter{color:#fff;background:#00000080;border-radius:20px;padding:.25rem .75rem;font-size:.9rem;font-weight:600}.btn-toggle{color:#fff;background:#fff3;border:none;border-radius:20px;padding:.4rem 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