/* ==========================================================
   الستايل السوسوي المحدث: تصميم "ألعاب الأطفال" المبهج
   ========================================================== */

:root {
    /* ألوان الحلوى المبهجة للأطفال */
    --candy-pink: #FF61A6;
    --candy-blue: #3CC0FF;
    --candy-yellow: #FFD400;
    --candy-green: #00D26A;
    --candy-purple: #9D4EDD;
    
    /* ألوان الظلال للحصول على تأثير 3D البارز */
    --shadow-pink: #D82176;
    --shadow-blue: #0093D8;
    --shadow-yellow: #D1A500;
    --shadow-green: #009E4F;
    
    /* الألوان الأساسية */
    --bg-main: #E0F7FA;
    --text-dark: #2D3436;
    --white: #FFFFFF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Cairo', sans-serif;
    -webkit-tap-highlight-color: transparent;
    user-select: none; /* منع تحديد النصوص للأطفال */
}

body {
    /* خلفية متدرجة حيوية */
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    min-height: 100vh;
    color: var(--text-dark);
    overflow-x: hidden;
    padding-bottom: 80px; /* مساحة للقائمة السفلية */
}

/* ================== العناوين الكرتونية ================== */
.welcome-msg h2, .sosawy-logo, .lesson-overlay h2 {
    color: var(--white);
    font-size: 3rem;
    font-weight: 900;
    text-align: center;
    /* تأثير النص الكرتوني المحاط بحدود وظلال */
    text-shadow: 
        -3px -3px 0 var(--candy-purple),
         3px -3px 0 var(--candy-purple),
        -3px  3px 0 var(--candy-purple),
         3px  3px 0 var(--candy-purple),
         0 8px 0 #6A21A8;
    margin: 20px 0;
    animation: floating 3s ease-in-out infinite;
}

/* ================== الهيدر العلوي ================== */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    border-bottom: 4px solid rgba(255, 255, 255, 0.8);
    border-radius: 0 0 30px 30px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    margin-bottom: 30px;
}

.stars-panel {
    background: var(--candy-yellow);
    padding: 10px 25px;
    border-radius: 50px;
    border: 4px solid var(--text-dark);
    box-shadow: 0 6px 0 var(--text-dark);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
    transform: rotate(-3deg);
}

.sosawy-tool-btn {
    background: var(--candy-pink);
    border: 4px solid var(--text-dark);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
    box-shadow: 0 6px 0 var(--text-dark);
    cursor: pointer;
    transition: all 0.1s;
}

.sosawy-tool-btn:active {
    transform: translateY(6px);
    box-shadow: 0 0 0 var(--text-dark);
}

/* ================== نظام الشبكة والبطاقات (3D Buttons) ================== */
.sosawy-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.sosawy-grid, .sosawy-lesson-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding: 20px 0;
}

/* تصميم البطاقة كلعبة */
.chapter-card, .lesson-card, .mode-card {
    background: var(--white);
    border: 4px solid var(--text-dark);
    border-radius: 35px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 12px 0 var(--text-dark);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* تأثير الارتداد */
    position: relative;
    overflow: hidden;
}

/* ألوان مختلفة للبطاقات */
.chapter-card:nth-child(odd) { background: #FFF0F5; border-color: var(--candy-pink); box-shadow: 0 12px 0 var(--shadow-pink); color: var(--shadow-pink); }
.chapter-card:nth-child(even) { background: #F0F8FF; border-color: var(--candy-blue); box-shadow: 0 12px 0 var(--shadow-blue); color: var(--shadow-blue); }

.chapter-icon {
    font-size: 5rem;
    margin-bottom: 15px;
    filter: drop-shadow(0 8px 8px rgba(0,0,0,0.15));
}

.chapter-card h3 { font-size: 1.8rem; font-weight: 900; margin-bottom: 5px; }
.chapter-card p { font-size: 1.2rem; font-weight: bold; opacity: 0.8; }

/* التفاعل مع البطاقات */
.chapter-card:hover, .lesson-card:hover, .mode-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 20px 0 var(--text-dark);
}

.chapter-card:nth-child(odd):hover { box-shadow: 0 20px 0 var(--shadow-pink); }
.chapter-card:nth-child(even):hover { box-shadow: 0 20px 0 var(--shadow-blue); }

.chapter-card:active, .lesson-card:active, .mode-card:active {
    transform: translateY(12px);
    box-shadow: 0 0 0 var(--text-dark) !important;
}

/* ================== أزرار التحديات والأكشن ================== */
.btn-action {
    background: var(--candy-blue);
    color: white;
    border: 4px solid var(--text-dark);
    border-radius: 25px;
    padding: 20px 40px;
    font-size: 2rem;
    font-weight: 900;
    box-shadow: 0 10px 0 var(--shadow-blue), inset 0 5px 0 rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.1s;
    text-transform: uppercase;
    display: inline-block;
}

.btn-action.success {
    background: var(--candy-green);
    box-shadow: 0 10px 0 var(--shadow-green), inset 0 5px 0 rgba(255,255,255,0.4);
}

.btn-action:active {
    transform: translateY(10px);
    box-shadow: 0 0 0 var(--shadow-blue), inset 0 0 0 rgba(255,255,255,0) !important;
}

/* ================== نافذة الدروس (Overlay) ================== */
.sosawy-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #FF9A9E 0%, #FECFEF 100%);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
}

.sosawy-overlay.hidden {
    display: none;
}

.close-btn {
    background: var(--candy-red);
    color: white;
    border: 4px solid var(--text-dark);
    border-radius: 50%;
    width: 70px;
    height: 70px;
    font-size: 2rem;
    font-weight: 900;
    box-shadow: 0 8px 0 var(--text-dark);
    cursor: pointer;
    align-self: flex-start;
    margin-bottom: 20px;
}
.close-btn:active { transform: translateY(8px); box-shadow: 0 0 0 var(--text-dark); }

/* ================== القائمة السفلية ================== */
.sosawy-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 15px 30px;
    border-radius: 40px;
    border: 4px solid var(--text-dark);
    box-shadow: 0 8px 0 var(--text-dark);
    display: flex;
    gap: 30px;
    z-index: 1500;
}

.nav-btn {
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 2rem;
    cursor: pointer;
    transition: transform 0.2s;
    color: var(--text-dark);
}
.nav-btn span { font-size: 1rem; font-weight: 900; margin-top: 5px; }
.nav-btn:hover { transform: scale(1.1) translateY(-5px); }
.nav-btn.active { color: var(--candy-blue); }

/* ================== الحركات الكرتونية (Animations) ================== */
@keyframes floating {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes bounce-in {
    0% { transform: scale(0); opacity: 0; }
    60% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

.bounce-in {
    animation: bounce-in 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

/* لوحة الكتابة */
#writing-canvas {
    background: rgba(255,255,255,0.9);
}

/* ================== تخطيط الدروس الداخلي ================== */
.sosawy-mode-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    align-items: center;
    padding: 30px 10px;
}

.mode-card {
    flex: 1;
    min-width: 150px;
    max-width: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 900;
}

.mode-card .icon {
    font-size: 4rem;
    margin-bottom: 10px;
    filter: drop-shadow(0 5px 5px rgba(0,0,0,0.2));
}

.lesson-card.completed {
    background: #e6fffa;
    border-color: var(--candy-green);
    box-shadow: 0 12px 0 var(--shadow-green);
}

/* ================== Media Queries for Responsiveness ================== */
@media (max-width: 768px) {
    .welcome-msg h2, .sosawy-logo, .lesson-overlay h2 {
        font-size: 2rem;
    }
    .main-header {
        flex-direction: column;
        gap: 15px;
    }
    .chapter-icon {
        font-size: 3.5rem;
    }
    .chapter-card h3 {
        font-size: 1.4rem;
    }
    .btn-action {
        font-size: 1.5rem;
        padding: 15px 20px;
    }
    #exp-text {
        font-size: 1.5rem !important;
    }
    #exp-visual {
        font-size: 3rem !important;
    }
    #exp-number {
        font-size: 5rem !important;
    }
    .sosawy-mode-selector {
        flex-direction: column;
    }
    .mode-card {
        max-width: 100%;
        width: 100%;
    }
    .sosawy-nav {
        width: 90%;
        justify-content: space-around;
        padding: 10px;
    }
    .nav-btn {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .welcome-msg h2, .sosawy-logo, .lesson-overlay h2 {
        font-size: 1.5rem;
    }
    .btn-action {
        font-size: 1.2rem;
        padding: 10px 15px;
    }
    .chapter-card, .lesson-card, .mode-card {
        padding: 20px 15px;
    }
    #exp-text {
        font-size: 1.2rem !important;
    }
    #exp-visual {
        font-size: 2rem !important;
    }
    #exp-number {
        font-size: 4rem !important;
    }
}