:root {
    --blue-dark: #145a9e;
    --blue-light: #e8f2fb;
    --blue: #1a6fc4;
    --orange: #f4811f;
    --orange-dark: #d97014;
    --orange-light: #fff5ed;
    --white: #ffffff;
    --off-white: #f9fafb;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 40px -10px rgba(0,0,0,0.1);
    --radius-lg: 22px;
    --radius: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Poppins', sans-serif;
    background: var(--white);
    color: var(--gray-800);
    line-height: 1.7;
    padding-top: 80px;
}

/* Fixed top bar */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    padding: 12px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 100;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.topbar .home-link {
    text-decoration: none;
    color: var(--blue);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition);
}
.topbar .home-link:hover {
    color: var(--orange-dark);
}
.topbar .logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--gray-900);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

/* Headings */
h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}
h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 48px 0 20px;
    border-left: 5px solid var(--blue);
    padding-left: 16px;
}
h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 24px 0 12px;
}
p, li {
    font-size: 1rem;
    color: var(--gray-700);
}
ul {
    list-style: none;
    padding-left: 0;
}
ul li {
    margin-bottom: 10px;
    padding-left: 24px;
    position: relative;
}
ul li::before {
    content: "●";
    color: var(--blue);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--gray-500);
    max-width: 700px;
    margin: 0 auto 48px;
}

/* Cards for program highlights */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin: 28px 0;
}
.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    transition: all var(--transition);
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--blue-light);
}
.card-icon {
    font-size: 2.2rem;
    margin-bottom: 10px;
}
.card h4 {
    font-weight: 700;
    margin-bottom: 6px;
}
.card p {
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* Learning Journey Stages */
.journey-stage {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin: 24px 0;
    border-left: 5px solid var(--blue);
    box-shadow: var(--shadow);
}
.journey-stage.orange-border { border-left-color: var(--orange); }
.stage-title {
    font-weight: 700;
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--gray-900);
}
.stage-achievement {
    display: inline-block;
    background: var(--blue-light);
    color: var(--blue-dark);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 10px;
}

/* Monthly themes grid */
.theme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
    margin-top: 20px;
}
.theme-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: 14px 10px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}
.theme-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--blue);
}
.month-num {
    display: block;
    font-size: 0.75rem;
    color: var(--blue);
    font-weight: 500;
    margin-bottom: 4px;
}

/* Age group cards */
.age-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
    margin: 20px 0;
    border: 1px solid var(--gray-100);
    transition: all var(--transition);
}
.age-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.age-range {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--orange-dark);
    margin-bottom: 4px;
}
.focus-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0 0;
}
.focus-tag {
    background: var(--blue-light);
    color: var(--blue-dark);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.cta-section {
    text-align: center;
    margin: 60px 0 40px;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 36px;
    background: var(--orange);
    color: white;
    font-weight: 700;
    border-radius: 30px;
    text-decoration: none;
    box-shadow: 0 12px 30px -8px rgba(244,129,31,0.3);
    font-size: 1rem;
    transition: all var(--transition);
}
.btn-primary:hover {
    background: var(--orange-dark);
    transform: translateY(-3px);
    box-shadow: 0 18px 36px -10px rgba(244,129,31,0.45);
}

footer {
    text-align: center;
    padding: 30px 20px;
    border-top: 1px solid var(--gray-200);
    color: var(--gray-500);
    font-size: 0.85rem;
}

@media (max-width: 600px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
}