/* "Soft & Playful Premium SaaS" Design System */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-color: #f4f5f9;
    --primary: #6366f1;
    --primary-light: #818cf8;
    --secondary: #14b8a6;
    --accent: #f43f5e;
    --text-main: #334155;
    --text-muted: #64748b;
    --card-bg: #ffffff;
    --card-shadow: 0 10px 40px -10px rgba(99, 102, 241, 0.08);
    --hover-shadow: 0 20px 40px -10px rgba(99, 102, 241, 0.15);
    --radius-lg: 1.5rem;
    --radius-md: 1rem;
    --radius-pill: 9999px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    background-color: var(--bg-color);
    font-family: 'Outfit', sans-serif;
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: #1e293b;
    letter-spacing: -0.025em;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.5s ease-out forwards;
}

/* Floating Navbar */
.navbar-floating {
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-pill);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    padding: 0.5rem 1.5rem;
    margin-top: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
    z-index: 1030;
}

.navbar-brand img {
    height: 40px; /* Adjust based on original logo */
    object-fit: contain;
}

.nav-link {
    font-weight: 500;
    color: var(--text-muted) !important;
    border-radius: var(--radius-pill);
    padding: 0.5rem 1rem !important;
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--primary) !important;
    background-color: rgba(99, 102, 241, 0.08);
}

/* Premium Buttons */
.btn {
    border-radius: var(--radius-pill);
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #34d399);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}
.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #f87171);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.4);
}

.btn-info {
    background: linear-gradient(135deg, #0ea5e9, #38bdf8);
    color: white;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn-info:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-warning:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

/* Premium Cards */
.card, .premium-card {
    background: var(--card-bg);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
}

.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

/* Badges & Pills */
.badge {
    border-radius: var(--radius-pill);
    padding: 0.5em 0.8em;
    font-weight: 600;
}

/* Custom Overrides for Group Cards & Elements */
a.group-card-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    background: var(--card-bg);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    transition: var(--transition);
}

a.group-card-link:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
    color: white;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.point_width {
    max-width: 50px;
    text-align: center;
    border-radius: var(--radius-md) !important;
    border: 1px solid #e2e8f0;
}

.point_width:focus {
    box-shadow: 0 0 0 0.25rem rgba(99, 102, 241, 0.25);
    border-color: var(--primary-light);
}

/* Units List */
ul.units {
    padding: 0; 
    list-style-type: none;
}

ul.units li a {
    display: flex;
    align-items: center;
    line-height: 1.5; 
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    margin: 8px 0;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-main);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

ul.units li a:hover {
    background: #f8fafc;
    color: var(--primary);
    transform: translateX(5px);
    border-left-color: var(--primary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

#outcomes, #teachers_note {
    min-height: 123px;
    border-radius: var(--radius-md);
    border: 1px solid #e2e8f0;
}

.image-container {
    /* Responsive image container inside cards */
    width: auto;
    min-height: 200px;
    max-height: 250px;
    overflow: hidden;
    position: relative;
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
}

.image-container img {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #f8fafc;
}

.da-link {
    text-decoration: none;
    font-weight: bold;
    color: var(--accent);
    position: relative;
}

.da-link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: var(--accent);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease-out;
}

.da-link:hover {
    color: #e11d48;
}

.da-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}