/* ============================================
   CSS Variables - لتسهيل التعديل والصيانة
   ============================================ */
:root {
    /* Colors - الألوان الأساسية حسب التصميم */
    --color-primary: #27AE60; /* الأخضر الفاتح */
    --color-primary-dark: #229954;
    --color-primary-light: #58D68D;
    --color-secondary: #2C3E50;
    --color-secondary-dark: #1A252F;
    --color-accent: #E74C3C; /* الأحمر */
    --color-accent-light: #EC7063;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-light: #F5F5F5; /* خلفية الهيدر الفاتحة */
    --color-gray: #6c757d;
    --color-dark: #212529;
    --color-dark-overlay: rgba(0, 0, 0, 0.6); /* Overlay للـ Hero */
    
    /* Typography */
    --font-family-primary: 'Cairo', sans-serif;
    --font-size-base: 1rem;
    --font-size-small: 0.875rem;
    --font-size-large: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    --font-size-4xl: 4rem;
    
    /* Spacing - المسافات */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1rem;
    
    /* Header */
    --header-height: 80px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* ============================================
   Utility Classes - كلاسات مساعدة
   ============================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.section__subtitle {
    font-size: var(--font-size-large);
    color: var(--color-gray);
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-light);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-normal);
    height: var(--header-height);
}

.header--scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--container-padding);
    height: 100%;
}

/* Company Branding */
.nav__brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 0 0 auto;
}

.nav__logo-wrapper {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.nav__logo-img {
    height: 70px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-fast);
}

.nav__logo-img:hover {
    transform: scale(1.05);
}

/* Hide old logo elements */
.nav__logo-circle,
.nav__logo-icon,
.nav__brand-text {
    display: none;
}

/* Navigation Menu */
.nav__menu {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: center;
}

.nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
}

.nav__link {
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition-normal);
}

.nav__link:hover::after,
.nav__link--active::after {
    width: 100%;
}

.nav__link:hover,
.nav__link--active {
    color: var(--color-primary);
}

/* Language Switcher */
.nav__language {
    flex: 0 0 auto;
}

.nav__lang-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: transparent;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-full);
    color: var(--color-primary);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.nav__lang-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.nav__close {
    display: none;
    cursor: pointer;
    font-size: var(--font-size-xl);
    color: var(--color-dark);
    background: none;
    border: none;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero__bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-dark-overlay);
    z-index: 2;
}

.hero__content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-2xl) var(--container-padding);
    max-width: 900px;
}

.hero__title {
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.hero__title-line {
    display: block;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.hero__title-line:first-child {
    font-size: var(--font-size-3xl);
    color: var(--color-white);
}

.hero__title-line--highlight {
    font-size: var(--font-size-4xl);
    color: var(--color-primary);
    font-weight: 900;
}

.hero__description {
    font-size: var(--font-size-large);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    color: var(--color-white);
}

.hero__brand-badge {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    margin: 0 0.25rem;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    font-family: var(--font-family-primary);
}

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

.btn--primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--secondary {
    background-color: var(--color-white);
    color: var(--color-gray);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn--secondary:hover {
    background-color: rgba(255, 255, 255, 0.9);
    border-color: var(--color-white);
}

.btn--full {
    width: 100%;
}

.btn__icon {
    font-size: var(--font-size-large);
}

.btn__text {
    line-height: 1;
}

/* ============================================
   About Section
   ============================================ */
.about {
    background-color: var(--color-white);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about__text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.about__description {
    font-size: var(--font-size-base);
    color: var(--color-gray);
    line-height: 1.8;
}

.about__image {
    position: relative;
}

.about__img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
}

/* ============================================
   Why Choose Us Section
   ============================================ */
.why-us {
    background-color: var(--color-light);
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-card__icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    display: block;
}

.feature-card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.feature-card__description {
    color: var(--color-gray);
    line-height: 1.6;
}

/* ============================================
   Products Section
   ============================================ */
.products {
    background-color: var(--color-white);
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.product-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-card__image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: var(--color-light);
}

.product-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card:hover .product-card__img {
    transform: scale(1.1);
}

.product-card__content {
    padding: var(--spacing-md);
}

.product-card__title {
    font-size: var(--font-size-large);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.product-card__description {
    color: var(--color-gray);
    font-size: var(--font-size-small);
}

/* ============================================
   Gallery Section
   ============================================ */
.gallery {
    background-color: var(--color-white);
    padding: var(--spacing-2xl) 0;
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
}

.gallery__item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    cursor: pointer;
    background-color: var(--color-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    aspect-ratio: 1;
}

.gallery__item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
    border-radius: var(--radius-md);
}

.gallery__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.gallery__item:hover::before {
    opacity: 1;
}

.gallery__image-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.gallery__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}

.gallery__item:hover .gallery__img {
    transform: scale(1.1);
}

.gallery__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
    transform: translateY(100%);
    transition: transform 0.3s ease;
    z-index: 2;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.gallery__item:hover .gallery__overlay {
    transform: translateY(0);
}

.gallery__icon {
    font-size: var(--font-size-xl);
    color: var(--color-white);
    text-align: center;
    display: block;
}

/* Animation for gallery items */
.gallery__item {
    animation: fadeInUp 0.5s ease-out;
    animation-fill-mode: both;
}

.gallery__item:nth-child(1) { animation-delay: 0.05s; }
.gallery__item:nth-child(2) { animation-delay: 0.1s; }
.gallery__item:nth-child(3) { animation-delay: 0.15s; }
.gallery__item:nth-child(4) { animation-delay: 0.2s; }
.gallery__item:nth-child(5) { animation-delay: 0.25s; }
.gallery__item:nth-child(6) { animation-delay: 0.3s; }
.gallery__item:nth-child(7) { animation-delay: 0.35s; }
.gallery__item:nth-child(8) { animation-delay: 0.4s; }

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background-color: var(--color-white);
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact__item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact__icon {
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
}

.contact__title {
    font-size: var(--font-size-large);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.contact__text {
    color: var(--color-gray);
}

/* Form Styles */
.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form__group {
    display: flex;
    flex-direction: column;
}

.form__input {
    padding: var(--spacing-sm);
    border: 2px solid var(--color-light);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family-primary);
    transition: var(--transition-fast);
    background-color: var(--color-white);
}

.form__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.form__input--textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--color-secondary-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.footer__logo-img {
    height: 80px;
    width: auto;
    object-fit: contain;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
    opacity: 0.9;
    transition: var(--transition-fast);
}

.footer__logo-img:hover {
    opacity: 1;
    transform: scale(1.05);
}

.footer__description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer__title {
    font-size: var(--font-size-large);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer__link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-primary);
    padding-right: var(--spacing-xs);
}

.footer__social-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer__social-link {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer__social-link:hover {
    color: var(--color-primary);
    transform: translateY(-3px);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer__copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-small);
}

/* ============================================
   Scroll to Top Button
   ============================================ */
.scroll-top {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.scroll-top--visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-3px);
}

.scroll-top__icon {
    font-size: var(--font-size-xl);
    font-weight: bold;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Responsive Design - التصميم المتجاوب
   ============================================ */

/* Tablets */
@media screen and (max-width: 968px) {
    :root {
        --font-size-4xl: 3rem;
        --font-size-3xl: 2.5rem;
        --font-size-2xl: 1.75rem;
    }
    
    .gallery__grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: var(--spacing-md);
    }
    
    .hero__content {
        padding: var(--spacing-xl) var(--container-padding);
    }
    
    .hero__title-line:first-child {
        font-size: var(--font-size-2xl);
    }
    
    .hero__title-line--highlight {
        font-size: var(--font-size-3xl);
    }
    
    .hero__container,
    .about__content,
    .contact__content {
        grid-template-columns: 1fr;
    }
    
    .nav__menu {
        position: static;
        width: auto;
        height: auto;
        background-color: transparent;
        box-shadow: none;
        padding: 0;
    }
    
    .nav__list {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-md);
        justify-content: center;
    }
    
    .nav__close {
        display: none;
    }
}

/* Mobile Devices */
@media screen and (max-width: 576px) {
    :root {
        --font-size-4xl: 2.5rem;
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.5rem;
        --spacing-2xl: 2rem;
        --container-padding: 1rem;
        --header-height: 70px;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero {
        min-height: 80vh;
        padding-top: var(--header-height);
    }
    
    .hero__content {
        padding: var(--spacing-lg) var(--container-padding);
    }
    
    .hero__title-line:first-child {
        font-size: var(--font-size-xl);
    }
    
    .hero__title-line--highlight {
        font-size: var(--font-size-2xl);
    }
    
    .hero__description {
        font-size: var(--font-size-base);
    }
    
    .hero__buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .nav__company-name {
        font-size: var(--font-size-base);
    }
    
    .nav__company-tagline {
        font-size: 0.75rem;
    }
    
    .nav__logo-circle {
        width: 50px;
        height: 50px;
    }
    
    .products__grid {
        grid-template-columns: 1fr;
    }
    
    .gallery__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .why-us__grid {
        grid-template-columns: 1fr;
    }
    
    .scroll-top {
        width: 45px;
        height: 45px;
        bottom: var(--spacing-md);
        left: var(--spacing-md);
    }
}

/* Large Screens */
@media screen and (min-width: 1400px) {
    :root {
        --container-max-width: 1400px;
        --font-size-4xl: 4.5rem;
    }
}

/* ============================================
   Language Support - دعم اللغات
   ============================================ */
html[dir="ltr"] {
    direction: ltr;
}

html[dir="ltr"] .container {
    text-align: left;
}

html[dir="ltr"] .section__header {
    text-align: left;
}

html[dir="ltr"] .nav__link::after {
    right: auto;
    left: 0;
}

html[dir="ltr"] .hero__buttons {
    flex-direction: row-reverse;
}

html[dir="ltr"] .btn__icon {
    order: 2;
}

html[dir="ltr"] .footer__link:hover {
    padding-right: 0;
    padding-left: var(--spacing-xs);
}

html[dir="ltr"] .scroll-top {
    right: var(--spacing-lg);
    left: auto;
}

/* Print Styles */
@media print {
    .header,
    .scroll-top,
    .footer {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
}