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

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --dark-hero-bg: #0f172a;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--text-main);
    background-color: #f8fafc;
    overflow-x: hidden;
}

/* --- HERO SECTION CONTRAST FIX --- */
.hero-wrapper {
    background: #0f172a !important; /* Fixed dark contrast */
    color: #ffffff !important;
    padding: 80px 0 60px 0;
}

.hero-wrapper h1 {
    color: #ffffff !important;
    font-weight: 800;
    letter-spacing: -1px;
}

.hero-wrapper p {
    color: #94a3b8 !important; /* Visible light-slate text */
}

.badge-hero {
    background: rgba(99, 102, 241, 0.2);
    color: #818cf8;
    border: 1px solid rgba(99, 102, 241, 0.4);
}

/* --- BUTTONS & INTERACTION --- */
.btn-primary-custom {
    background-color: var(--primary-color);
    border: none;
    color: #ffffff !important;
    font-weight: 700;
    border-radius: 10px;
    padding: 12px 28px;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
    transition: all 0.2s ease-in-out;
}

.btn-primary-custom:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
}

/* --- CARDS & SHEETS --- */
.card-custom {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.demo-paper-sheet {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
    padding: 30px;
    min-height: 420px;
}

/* --- RESPONSIVE BREAKPOINTS (Mobile, Tablet, Desktop) --- */

/* Desktop & Large Screens (≥ 992px) */
@media (min-width: 992px) {
    .max-w-750 {
        max-width: 750px;
        margin: 0 auto;
    }
}

/* Tablet Screens (768px - 991px) */
@media (max-width: 991px) and (min-width: 768px) {
    .hero-wrapper {
        padding: 60px 0 40px 0;
    }
    .hero-wrapper h1 {
        font-size: 2.75rem;
    }
    .demo-paper-sheet {
        padding: 20px;
        min-height: 380px;
    }
}

/* Mobile Screens (≤ 767px) */
@media (max-width: 767px) {
    .hero-wrapper {
        padding: 40px 15px 30px 15px;
        text-align: center;
    }
    .hero-wrapper h1 {
        font-size: 2rem;
        line-height: 1.25;
    }
    .hero-wrapper p {
        font-size: 0.95rem;
    }
    .demo-paper-sheet {
        padding: 15px;
        min-height: 320px;
    }
    .btn-primary-custom {
        width: 100%;
        padding: 12px 16px;
    }
}