:root {
    --bg-main: #F4F7FE;
    --card-bg: #FFFFFF;
    --sidebar-bg: #15161A;
    --text-dark: #1E293B;
    --text-muted: #64748B;
    --border: #E2E8F0;
    
    --primary: #F44A75;
    --secondary: #40D0C6;
    --accent: #F8D849;
    
    --success: #10B981;
    --danger: #EF4444; /* Standard alert red, decoupled from accent */
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }
body { background: var(--bg-main); color: var(--text-dark); display: flex; min-height: 100vh; overflow-x: hidden; }

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--sidebar-bg);
    color: #FFFFFF;
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    transition: all 0.3s ease;
}

.sidebar.collapsed {
    margin-left: -280px;
    padding-left: 0;
    padding-right: 0;
}

.sidebar .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 3rem;
    color: #FFFFFF;
}
.sidebar .logo span { color: var(--primary); font-weight: 400; }

.sidebar nav { display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    color: #94A3B8;
    text-decoration: none;
    border-radius: 0.75rem;
    font-weight: 600;
    transition: all 0.2s;
}
.sidebar nav a:hover { color: #FFFFFF; background: rgba(255,255,255,0.05); }
.sidebar nav a.active {
    background: var(--primary);
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(244, 74, 117, 0.3);
}
.sidebar nav a.logout { margin-top: auto; color: var(--secondary); }
.sidebar nav a.logout:hover { background: rgba(64, 208, 198, 0.1); }

/* Main Content area */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem 3rem;
    gap: 2rem;
    overflow-y: auto;
}

/* Topbar */
.topbar { display: flex; justify-content: space-between; align-items: center; }
.search-bar { background: var(--card-bg); padding: 0.75rem 1.5rem; border-radius: 2rem; width: 400px; display: flex; gap: 1rem; align-items: center; box-shadow: 0 4px 15px rgba(0,0,0,0.02); }
.search-bar input { border: none; outline: none; background: transparent; width: 100%; font-size: 0.95rem; }
.user-info { display: flex; align-items: center; gap: 1rem; font-weight: 600; }
.user-info img { width: 45px; height: 45px; border-radius: 50%; border: 2px solid var(--primary); }

/* Dashboard Widgets */
.widgets-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.widget-card { background: var(--card-bg); padding: 1.5rem; border-radius: 1rem; box-shadow: 0 4px 15px rgba(0,0,0,0.02); display: flex; flex-direction: column; gap: 1rem; overflow: hidden; }
.widget-card.highlight { background: var(--primary); color: var(--sidebar-bg); box-shadow: 0 10px 25px rgba(64, 208, 198, 0.3); }
.widget-card.highlight p { color: rgba(21, 22, 26, 0.7); }
.widget-card h3 { font-size: 1.1rem; }
.widget-card p { color: var(--text-muted); font-size: 0.9rem; }
.widget-card .icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.25rem; }
.widget-card:nth-child(2) .icon { background: rgba(248, 216, 73, 0.2); color: var(--secondary); }
.widget-card:nth-child(3) .icon { background: rgba(244, 74, 117, 0.15); color: var(--accent); }

/* Cards & Tables */
.content-section { background: var(--card-bg); border-radius: 1rem; padding: 2rem; box-shadow: 0 4px 15px rgba(0,0,0,0.02); }
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.section-header h2 { font-size: 1.25rem; font-weight: 800; color: var(--sidebar-bg); }
.btn-primary { background: var(--primary); color: #FFFFFF; padding: 0.75rem 1.5rem; border-radius: 0.5rem; border: none; font-weight: 700; cursor: pointer; transition: 0.2s; }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(244, 74, 117, 0.3); }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 1rem 0.5rem; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; }
tr:last-child td { border-bottom: none; }
td { font-size: 0.95rem; }

/* Custom Form elements */
.input-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; font-size: 0.9rem;}
.input-group input, .input-group select { width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--border); border-radius: 0.5rem; outline: none; transition: border 0.2s; background: var(--bg-main); font-weight: 500;}
.input-group input:focus, .input-group select:focus { border-color: var(--primary); }

/* Login Page Only Overrides */
.login-page { width: 100vw; height: 100vh; display: flex; align-items: center; justify-content: center; background-color: var(--sidebar-bg); }
.login-box { background: var(--card-bg); padding: 3rem; border-radius: 1rem; width: 100%; max-width: 400px; box-shadow: 0 10px 25px rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.1); text-align: center;}
.login-box .logo { margin-bottom: 0.5rem; justify-content: center; display: flex;}
.login-box .logo svg { margin-right: 0.5rem; }
.login-box form { display: flex; flex-direction: column; gap: 1.5rem; text-align: left; margin-top: 2rem;}
.error-message { color: var(--danger); font-size: 0.875rem; min-height: 1.5rem; font-weight: 600;}