/* =================== 1. GLOBAL & MOBILE-FIRST STYLES =================== */
:root {
    --color-primary: #E91E63; /* وردي زاهي */
    --color-secondary: #03A9F4; /* أزرق سماوي */
    --color-background: #111111; /* أسود داكن للخلفية */
    --color-text: #FFFFFF;
    --color-green: #4CAF50;
    --color-red: #F44336;
    --color-blue: #2196F3;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden; /* لمنع ظهور شريط التمرير الأفقي */
}

.container {
    max-width: 90%;
    margin: 0 auto;
    padding: 40px 0;
}

h1 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 15px;
    line-height: 1.1;
}

h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 30px;
    color: var(--color-primary);
    text-align: center;
}

p {
    font-size: 1.1rem;
    margin-bottom: 15px;
}

/* =================== 2. BUTTONS (CTA) =================== */
.cta-button {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 900;
    font-size: 1.2rem;
    transition: transform 0.3s, background-color 0.3s;
    text-align: center;
    width: 100%; /* عرض كامل للموبايل */
    margin: 10px 0;
    border: none;
}

.cta-button i {
    margin-right: 10px;
}

.cta-button.primary {
    background-color: var(--color-primary);
    color: var(--color-text);
    box-shadow: 0 8px 15px rgba(233, 30, 99, 0.4);
}

.cta-button.secondary {
    background-color: var(--color-secondary);
    color: var(--color-text);
    box-shadow: 0 8px 15px rgba(3, 169, 244, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
}

/* =================== 3. SECTIONS STYLING =================== */
section {
    padding: 60px 0;
    text-align: center;
}

.hero {
    background: linear-gradient(135deg, var(--color-background) 0%, #222222 100%);
    padding-top: 80px;
    padding-bottom: 50px;
    text-align: center;
}

.hero .subtitle {
    font-size: 1.3rem;
    opacity: 0.8;
    margin-bottom: 40px;
}

/* =================== 4. FEATURES (RULES GRID) =================== */
.features {
    background-color: #1a1a1a;
}

.rules-grid {
    display: flex;
    flex-direction: column; /* عمودي افتراضياً للموبايل */
    gap: 20px;
}

.rule-card {
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.rule-card i {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.rule-card.green { background-color: var(--color-green); color: black; }
.rule-card.red { background-color: var(--color-red); color: white; }
.rule-card.blue { background-color: var(--color-blue); color: white; }

.rule-card h3 { font-size: 1.5rem; margin-bottom: 5px; }

/* =================== 5. CHALLENGE SECTION =================== */
.challenge {
    background-color: var(--color-background);
}

.challenge-points {
    text-align: left;
    background-color: #222;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
}

.challenge-points ul {
    list-style: none;
    padding: 0;
}

.challenge-points li {
    font-size: 1.2rem;
    margin-bottom: 20px;
    padding-left: 25px;
    position: relative;
}

.challenge-points li::before {
    content: "?";
    color: var(--color-secondary);
    font-size: 1.5rem;
    position: absolute;
    left: 0;
    top: 0;
}

/* =================== 6. LIFELINE SECTION =================== */
.lifeline {
    background-color: #1a1a1a;
}

.lifeline-box {
    background-color: #333;
    padding: 30px;
    border-radius: 15px;
    border: 3px solid var(--color-primary);
}

.lifeline-box i {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 15px;
}

/* =================== 7. FOOTER =================== */
footer {
    padding: 30px 20px;
    text-align: center;
    background-color: #000;
    border-top: 1px solid #333;
}

footer .cta-button {
    max-width: 300px;
    margin: 20px auto;
}

.legal-links a {
    color: var(--color-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin: 0 10px;
}

.legal-links span {
    color: #555;
}

/* =================== 8. DESKTOP/TABLET OPTIMIZATION (Media Query) =================== */
@media (min-width: 768px) {
    .container {
        max-width: 800px;
        padding: 60px 0;
    }

    h1 {
        font-size: 3.5rem;
    }

    .cta-button {
        width: 300px; /* تحديد عرض ثابت للأزرار على الشاشات الكبيرة */
    }

    .rules-grid {
        flex-direction: row; /* أفقي للـ Desktop/Tablet */
        justify-content: space-between;
    }

    .rule-card {
        flex-basis: 30%; /* توزيع متساوٍ لثلاث بطاقات */
    }

    .hero .cta-button {
        margin: 20px auto;
    }
}