:root {
    /* Refined Palette - "Restrained Elegance" */
    --primary-color: #1F3B34;
    /* Deep, rich evergreen */
    --primary-light: #2E524A;
    --accent-color: #B08968;
    /* Muted bronze/gold */
    --bg-color: #F7F7F5;
    /* Warm, premium paper tone */
    --card-bg: #FFFFFF;

    --text-main: #2C2C2C;
    /* Soft black */
    --text-secondary: #595959;
    --text-muted: #888888;

    --success-color: #356650;
    --success-bg: #E8F2EC;
    --danger-color: #943E38;
    --danger-bg: #F9EBEA;

    --spacing-xs: 4px;
    --spacing-sm: 12px;
    --spacing-md: 20px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;

    --border-radius: 8px;
    /* Slightly tighter radius for a more professional look */
    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.03), 0 1px 2px rgba(0, 0, 0, 0.02);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06);

    --font-heading: 'Spectral', serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    font-size: 16px;
}

.container {
    max-width: 760px;
    /* Optimal reading width */
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header & Hero */
header {
    padding: 80px 0 60px;
    text-align: center;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: var(--spacing-sm);
}

/* Core Message - Web3 Gradient & Texture */
.core-message {
    /* Deep, rich gradient background */
    background: linear-gradient(135deg, #1A332E 0%, #1F3B34 100%);
    position: relative;
    padding: 48px 32px;
    border-radius: var(--border-radius);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    color: white;

    /* Modern card border and shadow */
    border: 1px solid rgba(255, 255, 255, 0.08);
    /* Glassy border */
    box-shadow:
        0 4px 24px -2px rgba(20, 40, 35, 0.2),
        inset 0 0 0 1px rgba(255, 255, 255, 0.05);
    /* Inner light ring */
}

/* Texture/Glow Effect */
.core-message::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 100%;
    height: 200%;
    /* Subtle radial glow to give it depth */
    background: radial-gradient(circle at center, rgba(176, 137, 104, 0.12) 0%, transparent 60%);
    transform: rotate(-20deg);
    pointer-events: none;
    z-index: 0;
}

.core-message h2,
.core-message p {
    position: relative;
    z-index: 1;
    /* Ensure text is above the glow */
}

.core-message h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 8px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: white;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    /* Soft text shadow for readability */
}

.core-message p {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.85);
    /* Slightly muted white */
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 500;
}

/* Sections */
.section-title-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid rgba(0, 0, 0, 0.04);
}

.section-icon {
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
}

.do-section .section-icon {
    color: var(--success-color);
}

.dont-section .section-icon {
    color: var(--danger-color);
}

.demographics-section .section-icon {
    color: var(--accent-color);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Cards & Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.info-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease;
}

.info-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(0, 0, 0, 0.08);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.dont-section .card-title {
    color: var(--danger-color);
}

ul {
    list-style-type: none;
}

li {
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: 24px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

li strong {
    color: var(--text-main);
    font-weight: 600;
}

li::before {
    content: "—";
    /* Em dash instead of bullet for editorial feel */
    position: absolute;
    left: 0;
    color: #DADADA;
    font-weight: 400;
}

/* Demographics Section Special Styling */
.demographics-section {
    margin-top: var(--spacing-xl);
}

.demo-card {
    background: #FFFBF7;
    /* Very subtle warm tint */
    border-color: rgba(176, 137, 104, 0.15);
}

.demo-card .card-title {
    color: #8C6B4A;
}

/* Footer */
footer {
    margin-top: 80px;
    padding: 40px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    header {
        padding: 60px 0 40px;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }
}

/* Animation classes */
.fade-in {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}