:root {
    --primary: #7E57C2;
    --primary-dark: #5E35B1;
    --primary-light: #B39DDB;
    --secondary: #26C6DA;
    --secondary-dark: #00ACC1;
    --accent: #FFA726;
    --accent-pink: #EC407A;
    --accent-green: #66BB6A;
    --accent-purple: #AB47BC;
    --accent-blue: #42A5F5;
    --text-dark: #2E3440;
    --text-light: #4C566A;
    --bg-dark: #0F3D5E;
    --bg-darker: #0A2A40;
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.2);
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius: 18px;
    --glass-effect: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0.1));
    --glass-border: 1px solid rgba(255,255,255,0.3);
}

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

body {
    font-family: 'Tajawal', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-dark);
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 75% 30%, rgba(66, 165, 245, 0.15) 0%, transparent 50%),
        linear-gradient(to bottom, var(--bg-dark), var(--bg-darker));
    line-height: 1.6;
}

/* تحسينات الصور مع الحفاظ على المقاسات */
img {
    max-width: 100%;
    height: auto;
    transition: var(--transition);
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* أنماط البطاقات مع الحفاظ على الأبعاد الأصلية */
.service-card {
    position: relative;
    flex: 1;
    min-width: 140px;
    height: 140px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
    cursor: pointer;
    border: none;
    will-change: transform;
}

.card-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.card-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.1;
    transition: var(--transition);
    filter: brightness(0.95) contrast(1.1) saturate(1.2);
}

.card-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.card-logo {
    width: 56px;
    height: 56px;
    object-fit: contain;
    margin-bottom: 12px;
    transition: var(--transition);
    will-change: transform;
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    margin: 0;
    text-align: center;
    color: var(--text-dark);
    transition: var(--transition);
}

.highlight-bar {
    height: 3px;
    width: 100%;
    background: var(--primary);
    transition: var(--transition);
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 3;
    transform-origin: left;
    transform: scaleX(0);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

/* تأثيرات التحويم مع الحفاظ على المقاسات */
.service-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.4);
}

.service-card:hover .card-logo {
    transform: scale(1.15);
}

.service-card:hover .card-title {
    transform: translateY(3px);
    color: var(--primary-dark);
}

.service-card:hover .highlight-bar {
    transform: scaleX(1);
}

/* الهيدر مع الحفاظ على الأبعاد الأصلية */
.header-container {
    position: relative;
    height: 280px;
    width: 100%;
    margin-bottom: 25px;
}

.logo-space {
    height: 100%;
    width: 100%;
    background: linear-gradient(145deg, #42A5F5, #1E88E5);
    position: relative;
    overflow: hidden;
    border-bottom-left-radius: 40px;
    border-bottom-right-radius: 40px;
    box-shadow: 0 15px 40px rgba(66, 165, 245, 0.35);
}

.logo-space img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.92) contrast(1.1) saturate(1.2);
}

/* المحتوى الرئيسي مع الحفاظ على المقاسات */
.main-content {
    padding: 0 20px 120px;
    position: relative;
    z-index: 2;
    margin-top: -35px;
}

.card-row {
    display: flex;
    margin-bottom: 20px;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

/* حاوية الاستخدام مع الحفاظ على الأبعاد */
.full-width-usage-container {
    position: relative;
    width: 100%;
    margin: 15px 0;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(231, 76, 60, 0.1);
    padding: 22px 15px 15px;
    border: 1px solid rgba(231, 76, 60, 0.08);
}

.usage-caption {
    position: absolute;
    top: 0;
    right: 0;
    background: linear-gradient(135deg, #E74C3C, #C0392B);
    color: white;
    padding: 8px 22px 9px 18px;
    font-size: 0.8rem;
    font-weight: 700;
    clip-path: polygon(15px 0, 100% 0, 100% 100%, 0 100%);
}

.usage-tab {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 12px;
}

.usage-box {
    background: rgba(255, 255, 255, 0.96);
    border-radius: 10px;
    padding: 12px 8px;
    text-align: center;
    box-shadow: 0 3px 8px rgba(231, 76, 60, 0.05);
    transition: all 0.25s ease-out;
}

.usage-value {
    font-size: 1rem;
    font-weight: 800;
    color: #E74C3C;
    margin-bottom: 4px;
}

.usage-label {
    font-size: 0.7rem;
    color: #E74C3C;
    font-weight: 600;
}

.loading {
    animation: pulse 1.5s infinite ease-in-out;
}

/* الحركات مع الحفاظ على التوقيتات الأصلية */
@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

/* تحسينات للشاشات الكبيرة */
@media only screen and (min-width: 768px) {
    body {
        max-width: 480px;
        margin: 0 auto;
        box-shadow: 0 0 0 1px rgba(0,0,0,0.12);
        position: relative;
        min-height: 100vh;
        background: var(--bg-dark);
    }
    
    .header-container {
        height: 280px;
    }
    
    .main-content {
        padding: 0 20px 120px;
    }
}

/* تحسينات للأجهزة الصغيرة */
@media only screen and (max-width: 480px) {
    .card-row {
        gap: 10px;
    }
    
    .service-card {
        min-width: calc(50% - 10px);
        height: 120px;
    }
    
    .card-logo {
        width: 48px;
        height: 48px;
    }
    
    .card-title {
        font-size: 14px;
    }
}