:root {
    /* الألوان الأساسية - Primary Palette */
    --color-primary: #05203C;        /* Deep Navy */
    --color-brand-blue: #0062E3;     /* Brand Blue - Action Color */
    --color-primary-light: #66A8FF;  /* Light Blue Tint */
    --color-primary-dark: #031926;   /* Darker Navy */
    --color-brand-white: #F4F8FF;    /* Off-white Surface */

    /* ألوان النصوص - Typography Colors */
    --color-text-primary: #072433;   /* Dark Navy Text */
    --color-text-secondary: #5B6B78; /* Grey Text */
    --color-text-disabled: #9CA3AF;  /* Disabled Text */
    --color-text-on-primary: #FFFFFF; /* White Text */

    /* ألوان الخلفيات - Backgrounds */
    --color-background: #FFFFFF;
    --color-surface: #FFFFFF;
    --color-surface-variant: #F3F6F8;
    --color-border: #E6EEF6;

    /* ألوان الحالة - Status Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #0062E3;

    /* ألوان المقاعد - Seat Map */
    --seat-available: #F0F7FF;
    --seat-selected: #0062E3;
    --seat-occupied: #EF4444;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Cairo', 'Inter', sans-serif;
    direction: rtl;
    text-align: right;
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.5;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.company-logo-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 0.9rem;
    overflow: hidden; /* Ensure image doesn't overflow */
    background-color: var(--color-brand-blue); /* Default background */
}

.company-logo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn--primary {
    background-color: var(--color-brand-blue);
    color: var(--color-text-on-primary);
}

.btn--primary:hover {
    background-color: #0050b3;
}

.btn--outline {
    background-color: transparent;
    border: 1px solid var(--color-brand-blue);
    color: var(--color-brand-blue);
}

.btn--outline:hover {
    background-color: var(--color-brand-blue);
    color: var(--color-text-on-primary);
}

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

/* Header Styles */
.header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__logo img {
    height: 40px;
    width: auto;
    transition: height 0.3s ease;
}

@media (min-width: 1024px) {
    .header__logo img {
        height: 60px;
    }
}

.header__nav ul {
    display: flex;
    gap: var(--spacing-lg);
}

.header__nav a {
    color: var(--color-text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}

.header__nav a:hover,
.header__nav a.active {
    color: var(--color-brand-blue);
}

.header__actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.mobile-menu-toggle:hover {
    background-color: var(--color-surface-variant);
}

.mobile-menu-toggle span {
    width: 20px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all 0.3s;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: none;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-nav a {
    color: var(--color-text-secondary);
    font-weight: 500;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.mobile-nav a:hover,
.mobile-nav a.active {
    color: var(--color-brand-blue);
    background-color: var(--color-surface-variant);
}

/* Footer Styles */
.footer {
    background-color: var(--color-primary);
    color: var(--color-text-on-primary);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    margin-top: auto;
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-brand-white);
}

.footer__links li {
    margin-bottom: var(--spacing-sm);
}

.footer__links a {
    color: #a0b0c0;
    transition: color 0.2s;
}

.footer__links a:hover {
    color: var(--color-brand-white);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #a0b0c0;
    font-size: 0.9rem;
}

/* About Page Styles */
.about-main {
    padding: 80px 0;
    min-height: 60vh;
}

.about-title {
    color: #0F172A;
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.about-text {
    color: #475569;
    line-height: 1.8;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.about-text:last-child {
    margin-top: 16px;
}

/* Search Summary */
.search-summary {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-summary__route {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.search-summary__date {
    color: var(--color-text-secondary);
}

.search-summary__actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .header__nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
        position: absolute;
        right: var(--spacing-md);
        top: 50%;
        transform: translateY(-50%);
    }

    .header__actions {
        display: none;
    }

    .header__container {
        justify-content: center;
        position: relative;
    }

    .search-summary {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .search-summary__actions {
        width: 100%;
        justify-content: space-between;
    }

    .trip-card__footer {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }

    .trip-card__amenities {
        justify-content: center;
        max-width: 100%;
        flex-wrap: wrap;
    }

    .amenity-badge {
        font-size: 0.75rem;
        padding: 2px 6px;
    }

    .trip-route__stops, .trip-route__hours {
        font-size: 0.8rem;
    }

    /* About page responsive */
    .about-main {
        padding: 40px 0;
    }

    .about-title {
        font-size: 2rem;
    }

    .about-text {
        font-size: 1rem;
    }

    .section-card {
        padding: var(--spacing-md);
    }
}