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

:root {
    --white: #ffffff;
    --background: #f8fafc;
    --text-primary: #1e293b;
    --primary-hover: #15508A;
    --primary-color: #1691D0;
    --accent-teal: #0891b2;
    --radius-lg: 12px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--background);
}

/* Split login layout - تحسينات */
.login-split {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr; /* توسيع الجانب الأيسر قليلاً */
    background: var(--white);
}

.login-hero {
    background: linear-gradient(135deg, #15508A 0%, #1691D0 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 40px; /* زيادة المساحة */
    position: relative;
    overflow: hidden;
}

    /* إضافة تأثير بصري خلفي */
    .login-hero::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
        animation: float 6s ease-in-out infinite;
    }

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(2deg);
    }
}

.login-hero-inner {
    max-width: 580px;
    text-align: center;
    position: relative;
    z-index: 2;
}

/* تحسين اللوجو - جعله أكبر بشكل كبير وأوضح */
.login-hero-logo {
    height: 250px !important; /* زيادة كبيرة في الحجم */
    width: auto !important;
    max-width: 250px !important;
    object-fit: contain !important;
    background: rgba(255,255,255,0.98) !important; /* شفافية أقل لوضوح أكبر */
    border-radius: 32px !important; /* زيادة الانحناء */
    padding: 32px !important; /* زيادة المساحة الداخلية */
    box-shadow: 0 30px 60px rgba(0,0,0,0.25), 0 15px 30px rgba(0,0,0,0.15), 0 5px 15px rgba(0,0,0,0.1) !important; /* ظلال أقوى ومتعددة */
    margin: 0 auto 40px auto !important;
    display: block !important;
    transition: all 0.4s ease !important;
    border: 4px solid rgba(255,255,255,0.3) !important;
    backdrop-filter: blur(10px) !important;
    image-rendering: -webkit-optimize-contrast !important; /* تحسين جودة الصورة */
    image-rendering: crisp-edges !important;
}

    .login-hero-logo:hover {
        transform: translateY(-8px) scale(1.02) !important;
        box-shadow: 0 40px 80px rgba(0,0,0,0.3), 0 20px 40px rgba(0,0,0,0.2), 0 8px 20px rgba(0,0,0,0.15) !important;
        border-color: rgba(255,255,255,0.5) !important;
    }

/* تحسين النصوص */
.login-hero-title {
    margin: 0 0 24px 0;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

    .login-hero-title .title-ar {
        display: block;
        font-weight: 700;
        font-size: clamp(1.8rem, 4vw, 2.8rem);
        margin-bottom: 8px;
        letter-spacing: -0.02em;
    }

    .login-hero-title .title-en {
        display: block;
        font-weight: 700;
        font-size: clamp(1.3rem, 3.2vw, 2rem);
        opacity: 0.92;
        margin-bottom: 12px;
        letter-spacing: 0.01em;
    }

    .login-hero-title .title-sub {
        display: block;
        font-weight: 600;
        font-size: clamp(1.1rem, 2.6vw, 1.6rem);
        color: #B8E6FF;
        background: rgba(255,255,255,0.1);
        padding: 8px 16px;
        border-radius: 50px;
        display: inline-block;
    }

.login-hero-text {
    margin-top: 16px;
    opacity: 0.88;
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    font-weight: 400;
    line-height: 1.5;
}

/* تحسين الجانب الأيمن */
.login-side {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 40px;
    background: var(--background);
    position: relative;
}

    /* إضافة نمط للخلفية */
    .login-side::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at 20% 80%, rgba(21,80,138,0.03) 0%, transparent 50%), radial-gradient(circle at 80% 20%, rgba(22,145,208,0.03) 0%, transparent 50%);
        pointer-events: none;
    }

    .login-side .login-card {
        width: 100%;
        max-width: 450px;
        background: white;
        padding: 40px;
        border-radius: 20px;
        box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        position: relative;
        z-index: 1;
    }

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

    .login-header h1 {
        color: var(--primary-hover);
        font-size: clamp(1.4rem, 3vw, 1.8rem);
        font-weight: 700;
        margin-bottom: 8px;
    }

    .login-header p {
        color: #64748b;
        font-size: 1rem;
        font-weight: 400;
    }

/* تحسينات للشاشات المتوسطة */
@media (max-width: 1200px) {
    .login-split {
        grid-template-columns: 1fr 1fr;
    }

    .login-hero {
        padding: 50px 30px;
    }

    .login-side {
        padding: 50px 30px;
    }

    .login-hero-logo {
        height: 220px !important;
        max-width: 220px !important;
        padding: 28px !important;
    }
}

/* تحسينات للهواتف المحمولة */
@media (max-width: 992px) {
    .login-split {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .login-hero {
        min-height: 45vh;
        padding: 40px 24px;
    }

    .login-hero-logo {
        height: 180px !important;
        max-width: 180px !important;
        padding: 24px !important;
        margin-bottom: 32px !important;
    }

    .login-side {
        padding: 40px 24px;
    }

        .login-side .login-card {
            padding: 32px 24px;
        }
}

@media (max-width: 640px) {
    .login-hero {
        padding: 32px 20px;
    }

    .login-hero-logo {
        height: 150px !important;
        max-width: 150px !important;
        padding: 20px !important;
        margin-bottom: 28px !important;
    }

    .login-side {
        padding: 32px 20px;
    }

        .login-side .login-card {
            padding: 28px 20px;
            border-radius: 16px;
        }
}

/* Legacy logo block - تحسينات أكبر للتوافق */
.login-container > .logo {
    width: auto;
    height: auto;
    background: linear-gradient(135deg, rgba(21,80,138,0.08), rgba(47,169,224,0.08));
    border-radius: var(--radius-lg);
    padding: 32px 36px !important; /* زيادة المساحة */
    margin: 0 0 32px 0 !important;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 24px !important;
    color: var(--text-primary);
    border: 2px solid rgba(21,80,138,0.05);
    backdrop-filter: blur(8px);
}

    .login-container > .logo img {
        width: auto !important;
        height: 120px !important; /* زيادة كبيرة في الحجم */
        aspect-ratio: auto !important;
        object-fit: contain !important;
        background: #fff !important;
        border-radius: 20px !important;
        padding: 16px 18px !important;
        box-shadow: 0 12px 35px rgba(0,0,0,0.12), 0 5px 12px rgba(0,0,0,0.08) !important;
        image-rendering: -webkit-optimize-contrast !important;
        image-rendering: crisp-edges !important;
    }

    .login-container > .logo h1 {
        margin: 0;
        line-height: 1.3;
        font-weight: 800;
        font-size: clamp(1.4rem, 3.6vw, 2.2rem) !important; /* زيادة حجم النص */
        color: var(--primary-hover);
    }

        .login-container > .logo h1 span {
            display: inline-block;
        }

            .login-container > .logo h1 span:first-child {
                color: var(--primary-hover);
            }

            .login-container > .logo h1 span:nth-child(2) {
                color: var(--primary-color);
            }

        .login-container > .logo h1 .sub {
            color: var(--accent-teal);
            font-weight: 700;
            font-size: 0.85em;
            display: block;
            margin-top: 6px !important;
        }

@media (max-width: 640px) {
    .login-container > .logo {
        flex-direction: column;
        text-align: center;
        gap: 20px !important;
        padding: 24px !important;
    }

        .login-container > .logo img {
            height: 100px !important;
            padding: 14px !important;
        }
}

/* إضافة تحسينات خاصة للوضوح والحدة */
img, .login-hero-logo, .login-container > .logo img {
    -webkit-font-smoothing: antialiased !important;
    -moz-osx-font-smoothing: grayscale !important;
    image-rendering: -webkit-optimize-contrast !important;
    image-rendering: optimize-contrast !important;
    image-rendering: crisp-edges !important;
    backface-visibility: hidden !important;
    -webkit-backface-visibility: hidden !important;
}