/* === HeartHealth Brands - Main Stylesheet === */

/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* --- Tailwind CSS Directives (for reference, handled by CDN) --- */
@tailwind base;
@tailwind components;
@tailwind utilities;

/* --- Custom Properties & Base Styles --- */
body {
    font-family: 'Inter', sans-serif;
    background-color: #f8fafc; /* A slightly cooler gray (slate-50) */
    color: #334155; /* A softer black (slate-700) */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Hero Section Gradient --- */
.hero-gradient {
    background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%); /* White to a very light green */
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    color: #0f172a; /* A deeper, richer black (slate-900) */
}

/* --- Modern Button Styles --- */
.btn {
    display: inline-block;
    font-weight: 600;
    padding: 0.75rem 1.75rem;
    border-radius: 0.5rem; /* Rounded corners */
    transition: all 0.2s ease-in-out;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background-color: #16a34a; /* A rich green (green-600) */
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #15803d; /* Darker green on hover (green-700) */
    transform: translateY(-2px); /* Subtle lift effect */
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

/* --- Modern Card Styles --- */
.card {
    background-color: #ffffff;
    border-radius: 0.75rem; /* Slightly more rounded */
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -4px rgba(0, 0, 0, 0.07);
}

/* --- Header Styles --- */
header a {
    transition: color 0.2s ease-in-out;
}


/*
============================================
GUIDE PAGE SPECIFIC STYLES
============================================
*/
.guide-content h2 {
    font-size: 1.75rem; /* 28px */
    font-weight: 700;
    color: #1e293b; /* slate-800 */
    margin-bottom: 0.5rem;
}

.guide-content h3 {
    font-size: 1.25rem; /* 20px */
    font-weight: 600;
    color: #16a34a; /* green-600 */
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.guide-content p {
    font-size: 1.125rem; /* 18px */
    line-height: 1.75;
    margin-bottom: 1rem;
}

.guide-content strong {
    color: #0f172a; /* slate-900 */
}

.guide-content ul {
    list-style-type: none;
    padding-left: 0;
}

.guide-content ul li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
    line-height: 1.75;
}

.guide-content ul li::before {
    content: '✔';
    color: #22c55e; /* green-500 */
    margin-right: 0.75rem;
    font-weight: 600;
    margin-top: 0.125rem;
}

.guide-week-card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0; /* slate-200 */
    border-radius: 0.75rem;
    padding: 2rem;
    margin-bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    md:flex-direction: row;
    gap: 2rem;
    box-shadow: 0 1px 3px 0 rgba(0,0,0,0.03);
}

.guide-icon-container {
    flex-shrink: 0;
    width: 4rem;
    height: 4rem;
    background-color: #f0fdf4; /* green-50 */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #bbf7d0; /* green-200 */
}

.summary-box {
    background-color: #f1f5f9; /* slate-100 */
    border-left: 5px solid #16a34a; /* green-600 */
    border-radius: 0 0.5rem 0.5rem 0;
    padding: 1.5rem;
    margin: 2rem 0;
}