:root {
    --brand: #1f4fa6;
    --brand-deep: #163a7a;
    --brand-foreground: #ffffff;
    --accent-green: #2f9e57;
    --accent-green-foreground: #ffffff;
    --case-badge: #4338ca;
    --bg: #fbfdff;
    --fg: #0f172a;
    --muted: #64748b;
    --card: #ffffff;
    --border: #e2e8f0;
    --radius: 0.5rem;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.muted {
    color: var(--muted);
}

.max-w {
    max-width: 720px;
}

/* =====================================================
   HERO SECTION
===================================================== */
.hero {
    margin-top: 100px;
    margin-bottom: 100px;
    background: var(--card);
    border-bottom: 1px solid var(--border);
}

.hero-grid {
    display: grid;
    gap: 2.5rem;
    padding: 120px 24px;
    align-items: center;
}

@media (min-width: 768px) {
    .hero-grid {
        grid-template-columns: 1.1fr 1fr;
        padding: 120px 40px;
    }
}

/* تحسين للشاشات الصغيرة جداً */
@media (max-width: 480px) {
    .hero-grid {
        padding: 80px 16px;
        gap: 1.5rem;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
}

/* =====================================================
   تحسينات للشاشات الكبيرة (LARGE DESKTOP)
===================================================== */
@media (min-width: 1440px) {
    .container {
        max-width: 1280px;
        padding: 0 3rem;
    }

    .hero {
        margin-top: 120px;
    }

    .hero-grid {
        padding: 160px 60px;
        gap: 4rem;
        grid-template-columns: 1.2fr 1fr;
    }

    .hero h1 {
        font-size: 3rem;
        line-height: 1.2;
    }

    .lead {
        font-size: 1.2rem;
        max-width: 600px;
    }

    .hero-image img {
        aspect-ratio: 4 / 3;
        border-radius: 16px;
        box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
    }

    .image-tag {
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
        bottom: -1.5rem;
        left: -1.5rem;
    }

    .btn {
        padding: 1rem 2rem;
        font-size: 1rem;
        border-radius: 8px;
    }

    .section {
        padding: 6rem 1.5rem;
    }

    .section-alt {
        padding: 6rem 0;
    }

    h2 {
        font-size: 2.25rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .steps {
        gap: 2rem;
        margin-top: 3rem;
    }

    .step-card {
        padding: 2rem;
        border-radius: 12px;
    }

    .step-num {
        width: 3rem;
        height: 3rem;
        font-size: 1.2rem;
    }

    .step-card p {
        font-size: 1rem;
    }

    .product-grid {
        gap: 4rem;
        padding: 0 2rem;
    }

    .product-img {
        padding: 1.5rem;
        border-radius: 12px;
    }

    .features li {
        font-size: 1rem;
        padding-left: 1.5rem;
    }

    .features li::before {
        width: 8px;
        height: 8px;
        top: 0.7rem;
    }

    .results {
        gap: 2rem;
        margin-top: 3rem;
    }

    .result-card {
        padding: 2rem;
        border-radius: 12px;
    }

    .result-k {
        font-size: 2.5rem;
    }

    .result-card p {
        font-size: 1rem;
        margin-top: 0.5rem;
    }

    .callout {
        padding: 1.25rem 1.5rem;
        font-size: 1rem;
        border-left-width: 6px;
    }

    .site-footer {
        padding: 3.5rem 1.5rem 0;
    }

    .footer-grid {
        gap: 3rem;
        padding: 0 0 3rem;
    }

    .site-footer h4 {
        font-size: 1.2rem;
    }

    .site-footer p {
        font-size: 1rem;
    }

    .copyright {
        padding: 1.5rem;
        font-size: 0.875rem;
    }
}

/* =====================================================
   تحسينات للشاشات الكبيرة جداً (ULTRA WIDE)
===================================================== */
@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
        padding: 0 5rem;
    }

    .hero {
        margin-top: 140px;
    }

    .hero-grid {
        padding: 200px 80px;
        gap: 5rem;
        grid-template-columns: 1.3fr 1fr;
    }

    .hero h1 {
        font-size: 4rem;
        line-height: 1.1;
    }

    .badge {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
        letter-spacing: 0.08em;
    }

    .lead {
        font-size: 1.4rem;
        max-width: 700px;
        margin-top: 1.75rem;
    }

    .cta-row {
        margin-top: 2.5rem;
        gap: 1rem;
    }

    .hero-image img {
        aspect-ratio: 16 / 10;
        border-radius: 20px;
        box-shadow: 0 30px 60px rgba(15, 23, 42, 0.2);
    }

    .image-tag {
        font-size: 1.1rem;
        padding: 1rem 2rem;
        bottom: -2rem;
        left: -2rem;
        border-radius: 10px;
    }

    .btn {
        padding: 1.25rem 2.5rem;
        font-size: 1.1rem;
        border-radius: 10px;
    }

    .section {
        padding: 8rem 1.5rem;
    }

    .section-alt {
        padding: 8rem 0;
    }

    h2 {
        font-size: 2.75rem;
        margin-bottom: 0.5rem;
    }

    h3 {
        font-size: 1.75rem;
        margin: 1.25rem 0 0.75rem;
    }

    .steps {
        gap: 2.5rem;
        margin-top: 3.5rem;
    }

    .step-card {
        padding: 2.5rem;
        border-radius: 16px;
        border-width: 2px;
    }

    .step-num {
        width: 3.5rem;
        height: 3.5rem;
        font-size: 1.4rem;
        border-radius: 12px;
    }

    .step-card p {
        font-size: 1.1rem;
    }

    .product-grid {
        gap: 5rem;
        padding: 0 3rem;
    }

    .product-img {
        padding: 2rem;
        border-radius: 16px;
        border-width: 2px;
    }

    .features li {
        font-size: 1.1rem;
        padding-left: 1.75rem;
        margin-bottom: 1rem;
    }

    .features li::before {
        width: 10px;
        height: 10px;
        top: 0.7rem;
    }

    .results {
        gap: 2.5rem;
        margin-top: 3.5rem;
    }

    .result-card {
        padding: 2.5rem;
        border-radius: 16px;
        border-width: 2px;
    }

    .result-k {
        font-size: 3rem;
    }

    .result-card p {
        font-size: 1.1rem;
        margin-top: 0.75rem;
    }

    .callout {
        padding: 1.5rem 2rem;
        font-size: 1.1rem;
        border-left-width: 8px;
        margin-top: 2.5rem;
    }

    .site-footer {
        padding: 4rem 2rem 0;
    }

    .footer-grid {
        gap: 4rem;
        padding: 0 0 3.5rem;
    }

    .site-footer h4 {
        font-size: 1.4rem;
        margin-bottom: 0.75rem;
    }

    .site-footer p {
        font-size: 1.1rem;
    }

    .copyright {
        padding: 2rem;
        font-size: 1rem;
    }
}

/* =====================================================
   تحسينات إضافية للشاشات المتوسطة (LAPTOP)
===================================================== */
@media (min-width: 1024px) and (max-width: 1439px) {
    .container {
        max-width: 1100px;
        padding: 0 2rem;
    }

    .hero-grid {
        padding: 140px 40px;
        gap: 3rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .section {
        padding: 5rem 1.5rem;
    }

    .product-grid {
        gap: 3rem;
    }

    .results {
        gap: 1.75rem;
    }

    .result-k {
        font-size: 2rem;
    }
}

/* =====================================================
   باقي الأكواد (بدون تغيير)
===================================================== */
.badge {
    display: inline-block;
    background: var(--case-badge);
    color: #fff;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.hero h1 {
    margin: 1.25rem 0 0;
    color: var(--brand-deep);
    font-size: 1.75rem;
    line-height: 1.25;
    font-weight: 700;
}

@media (min-width: 768px) {
    .hero h1 {
        font-size: 2.25rem;
    }
}

.brand-text {
    color: var(--brand);
}

.lead {
    margin-top: 1.25rem;
    color: var(--muted);
}

.cta-row {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

@media (max-width: 480px) {
    .cta-row {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
}

.btn-primary {
    background: var(--brand);
    color: var(--brand-foreground);
}

.btn-primary:hover {
    background: var(--brand-deep);
}

.btn-outline {
    background: var(--bg);
    color: var(--fg);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background: #f1f5f9;
}

.hero-image {
    position: relative;
}

.hero-image img {
    aspect-ratio: 4 / 3;
    width: 100%;
    object-fit: cover;
    border-radius: var(--radius);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.12);
}

.image-tag {
    position: absolute;
    bottom: -1rem;
    left: -1rem;
    background: var(--accent-green);
    color: var(--accent-green-foreground);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.15);
    display: none;
}

@media (min-width: 768px) {
    .image-tag {
        display: block;
    }
}

.section {
    padding: 4rem 1.5rem;
}

@media (max-width: 480px) {
    .section {
        padding: 2.5rem 1rem;
    }
}

.section-alt {
    background: var(--card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 4rem 0;
}

@media (max-width: 480px) {
    .section-alt {
        padding: 2.5rem 0;
    }
}

h2 {
    color: var(--brand-deep);
    font-size: 1.5rem;
    margin: 0;
}

@media (max-width: 480px) {
    h2 {
        font-size: 1.25rem;
    }
}

h3 {
    color: var(--brand-deep);
    font-size: 1.125rem;
    margin: 1rem 0 0.5rem;
}

.steps {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .steps {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .steps {
        gap: 1rem;
        margin-top: 1.5rem;
    }
}

.step-card {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    transition: box-shadow 0.2s;
}

.step-card:hover {
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

.step-num {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 999px;
    background: var(--brand);
    color: var(--brand-foreground);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.step-card p {
    color: var(--muted);
    font-size: 0.9rem;
    margin: 0;
}

.callout {
    margin-top: 2rem;
    padding: 0.875rem 1rem;
    background: #f1f5f9;
    border-left: 4px solid var(--accent-green);
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.9rem;
}

@media (max-width: 480px) {
    .callout {
        padding: 0.75rem;
        font-size: 0.85rem;
    }
}

.product-grid {
    display: grid;
    gap: 2.5rem;
    padding: 0 1.5rem;
    align-items: center;
}

@media (max-width: 480px) {
    .product-grid {
        padding: 0 1rem;
        gap: 1.5rem;
    }
}

@media (min-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.product-img {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    padding: 1rem;
}

.features {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
}

.features li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--muted);
    font-size: 0.9rem;
}

.features li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--accent-green);
}

.results {
    display: grid;
    gap: 1.5rem;
    margin-top: 2.5rem;
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 1024px) {
    .results {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 480px) {
    .results {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
        margin-top: 1.5rem;
    }
}

.result-card {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

@media (max-width: 480px) {
    .result-card {
        padding: 1rem;
    }
}

.result-k {
    color: var(--brand);
    font-size: 1.75rem;
    font-weight: 700;
}

@media (max-width: 480px) {
    .result-k {
        font-size: 1.5rem;
    }
}

.result-card p {
    color: var(--muted);
    font-size: 0.875rem;
    margin: 0.75rem 0 0;
}

.site-footer {
    background: var(--brand-deep);
    color: #fff;
    padding: 2.5rem 1.5rem 0;
}

@media (max-width: 480px) {
    .site-footer {
        padding: 2rem 1rem 0;
    }
}

.footer-grid {
    display: grid;
    gap: 2rem;
    padding: 0 0 2rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .footer-grid {
        gap: 1.5rem;
        padding: 0 0 1.5rem;
    }
}

.site-footer h3 {
    color: #fff;
    margin: 0;
}

.site-footer h4 {
    margin: 0 0 0.5rem;
}

.site-footer p {
    margin: 0.5rem 0 0;
    opacity: 0.85;
    font-size: 0.9rem;
}

.site-footer a {
    color: #fff;
}

.copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding: 1.25rem 1.5rem;
    text-align: center;
    font-size: 0.75rem;
    opacity: 0.7;
}

@media (max-width: 480px) {
    .copyright {
        padding: 1rem;
        font-size: 0.7rem;
    }
}

/* =====================================================
   تحسينات للشاشات الصغيرة جداً (max-width: 360px)
===================================================== */
@media (max-width: 360px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .hero-grid {
        padding: 60px 12px;
    }
    
    .hero h1 {
        font-size: 1.25rem;
    }
    
    .lead {
        font-size: 0.9rem; 
    }
    
    .step-card {
        padding: 1rem;
    }
    
    .product-img {
        padding: 0.5rem;
    }
}