/* 
 * Bilingual-Ready CSS System
 * Uses logical properties (inline/block, start/end) to natively support 
 * both LTR (English) and RTL (Arabic) without duplicated rules.
 */

:root {
    /* Colors */
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #555555;
    --color-primary: #0056b3;
    --color-primary-hover: #004494;
    --color-border: #e0e0e0;
    --color-bg-alt: #f8f9fa;

    /* Spacing (Logical) */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;
}

/* RTL Override: When dir="rtl" is set on <html>, flip the font family to a standard Arabic stack */
html[dir="rtl"] {
    --font-family: "Tajawal", "Cairo", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-bg);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto; /* Logical: margin-left/right in LTR, margin-right/left in RTL */
    padding-inline: var(--space-sm); /* Logical: padding-left/right */
}

/* Typography */
h1, h2, h3 {
    line-height: 1.2;
    margin-block-end: var(--space-sm); /* Logical: margin-bottom */
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; }

p {
    margin-block-end: var(--space-sm);
    color: var(--color-text-muted);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s ease;
}

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

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

/* Header */
.site-header {
    border-block-end: 1px solid var(--color-border); /* Logical: border-bottom */
    padding-block: var(--space-sm); /* Logical: padding-top/bottom */
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* Hero */
.hero {
    padding-block: var(--space-lg);
    text-align: start; /* Logical: text-align left in LTR, right in RTL */
}

.hero-sub {
    font-size: 1.25rem;
    max-width: 600px;
    margin-block-end: var(--space-md);
}

/* Segments */
.segments {
    padding-block: var(--space-lg);
    background-color: var(--color-bg-alt);
}

.section-sub {
    max-width: 600px;
    margin-block-end: var(--space-md);
}

.segment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.segment-card {
    display: block;
    padding: var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    text-decoration: none;
    color: var(--color-text);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.segment-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.segment-card.primary {
    border-color: var(--color-primary);
    background-color: #f0f7ff;
}

.segment-card h3 {
    color: var(--color-primary);
    margin-block-end: var(--space-xs);
}

.cta-link {
    display: inline-block;
    margin-block-start: var(--space-sm); /* Logical: margin-top */
    color: var(--color-primary);
    font-weight: 600;
}

/* How It Works */
.how-it-works {
    padding-block: var(--space-lg);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-block-end: var(--space-md);
}

.step {
    padding: var(--space-md);
    border-inline-start: 3px solid var(--color-primary); /* Logical: border-left in LTR, border-right in RTL */
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    margin-inline-end: var(--space-xs); /* Logical: margin-right in LTR, margin-left in RTL */
}

.center-cta {
    text-align: center;
    margin-block-start: var(--space-md);
}

/* Trust Signal */
.trust {
    padding-block: var(--space-lg);
    background-color: var(--color-bg-alt);
    text-align: start;
}

.trust-list, .list-check {
    list-style: none;
    max-width: 600px;
}

.trust-list li, .list-check li {
    padding-inline-start: var(--space-md); /* Logical: padding-left in LTR, padding-right in RTL */
    position: relative;
    margin-block-end: var(--space-sm);
}

/* Add a checkmark that flips correctly in RTL */
.trust-list li::before, .list-check li::before {
    content: "✓";
    position: absolute;
    inset-inline-start: 0; /* Logical: left in LTR, right in RTL */
    color: var(--color-primary);
    font-weight: bold;
}

/* Projects & Challenges Sections */
.projects, .challenges {
    padding-block: var(--space-lg);
    text-align: start;
}

.projects {
    background-color: var(--color-bg-alt);
}

/* Form Section */
.form-section {
    padding-block: var(--space-lg);
}

.form-section h2 {
    text-align: start;
}

#hubspot-form-container {
    max-width: 600px;
    margin-inline: auto;
    margin-block-start: var(--space-md);
}

/* Footer */
.site-footer {
    border-block-start: 1px solid var(--color-border);
    padding-block: var(--space-md);
    text-align: center;
}

.footer-links {
    margin-block-end: var(--space-sm);
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    margin-inline: var(--space-sm); /* Logical: margin-left/right */
}

.footer-links a:hover {
    color: var(--color-primary);
}

/* Language Toggle */
.lang-toggle {
    position: absolute;
    inset-inline-end: var(--space-sm); /* Logical: right in LTR, left in RTL */
    inset-block-start: var(--space-sm); /* Logical: top */
    font-size: 0.875rem;
}

.lang-toggle a {
    color: var(--color-primary);
    text-decoration: none;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .site-header .container {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
    
    .lang-toggle {
        position: static;
        margin-block-end: var(--space-sm);
    }
}
