/* =====================================================
   AZAL Airlines - Layout (Header, Footer, Grid)
   ===================================================== */

/* ========== HEADER / NAVBAR ========== */
.site-header {
    background: var(--color-primary);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    flex-shrink: 0;
}

.header-logo .logo-img {
    height: 65px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: opacity var(--transition-fast);
}

.header-logo:hover .logo-img {
    opacity: 0.85;
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    color: var(--color-accent);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.header-actions .btn-lang {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    background: transparent;
    font-family: var(--font-english);
    transition: all var(--transition-fast);
}

.header-actions .btn-lang:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.header-login {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-sm);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.header-login:hover {
    color: var(--color-accent);
}

/* Mobile Menu */
.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    color: #fff;
    border-radius: var(--radius-md);
    cursor: pointer;
}

.mobile-close {
    display: none;
}

/* ========== FOOTER ========== */
.site-footer {
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.8);
}

.footer-top {
    padding-top: var(--space-16);
    padding-bottom: var(--space-12);
}

.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--space-12);
}

.footer-brand .footer-logo {
    display: inline-block;
    margin-bottom: var(--space-5);
    text-decoration: none;
}

.footer-logo-img {
    height: 52px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: var(--space-6);
    line-height: var(--leading-relaxed);
    max-width: 280px;
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.footer-column h4 {
    font-size: var(--text-base);
    font-weight: var(--font-bold);
    color: #fff;
    margin-bottom: var(--space-6);
    position: relative;
    padding-bottom: var(--space-3);
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 32px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-column a:hover {
    color: var(--color-accent);
    padding-right: var(--space-1);
}

/* Footer Contact List */
.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.55);
}

.footer-contact svg {
    flex-shrink: 0;
    color: var(--color-accent);
    opacity: 0.7;
}

.footer-contact span {
    direction: ltr;
    unicode-bidi: plaintext;
}

/* Footer Bottom */
.footer-bottom {
    background: rgba(0, 0, 0, 0.15);
    padding: var(--space-5) 0;
}

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

.footer-bottom p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.45);
    margin: 0;
}

.footer-bottom strong {
    color: rgba(255, 255, 255, 0.7);
    font-family: var(--font-english);
}

.footer-bottom-links {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.footer-bottom-links a {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-sep {
    color: rgba(255, 255, 255, 0.2);
    font-size: var(--text-xs);
}

/* ========== PAGE HERO ========== */
.page-hero {
    background: var(--color-primary);
    padding: var(--space-16) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11, 28, 61, 0.95), rgba(20, 45, 94, 0.9));
    z-index: 1;
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.page-hero h1 {
    color: #fff;
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
}

.page-hero p {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-lg);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== GRID HELPERS ========== */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
}

@media (max-width: 768px) {
    .main-nav { 
        display: none; 
        position: fixed; 
        top: var(--header-height); 
        right: 0; 
        width: 100%; 
        height: calc(100vh - var(--header-height)); 
        background: var(--color-primary); 
        flex-direction: column; 
        padding: var(--space-6); 
        gap: var(--space-1); 
        box-shadow: var(--shadow-xl); 
        overflow-y: auto; 
        z-index: var(--z-fixed);
    }
    .main-nav.open { display: flex; animation: slideInLeft 0.3s ease; }
    .main-nav .nav-link { 
        padding: var(--space-3) var(--space-4); 
        font-size: var(--text-base); 
        border-bottom: 1px solid rgba(255,255,255,0.08);
        border-radius: 0;
    }
    .mobile-toggle { display: flex; }
    .mobile-close {
        display: flex;
        align-self: flex-end;
        width: 44px;
        height: 44px;
        align-items: center;
        justify-content: center;
        color: #fff;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 50%;
        cursor: pointer;
        margin-bottom: var(--space-4);
        transition: all 0.3s ease;
    }
    .mobile-close:hover {
        background: rgba(212, 160, 23, 0.3);
        border-color: var(--color-accent);
        color: var(--color-accent);
    }
    
    .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
    
    .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); text-align: center; }
    .footer-brand { align-items: center; }
    .footer-brand p { text-align: center; }
    .footer-social { justify-content: center; }
    .footer-column h3::after { margin: var(--space-2) auto 0; }
    .footer-column ul { align-items: center; }
    .footer-contact li { justify-content: center; }
    .footer-bottom-content { flex-direction: column; gap: var(--space-3); text-align: center; }
    
    .page-hero { padding: var(--space-10) 0; }
    .page-hero h1 { font-size: var(--text-2xl); }
    .page-hero p { font-size: var(--text-sm); }
    h1 { font-size: var(--text-2xl); }
    h2 { font-size: var(--text-xl); }
    .container { padding: 0 var(--space-4); }
    .section { padding: var(--space-10) 0; }
    .section-sm { padding: var(--space-8) 0; }
    
    /* Contact page */
    .contact-layout { grid-template-columns: 1fr; }
    .contact-info { order: 2; }
    .contact-form-wrapper { order: 1; }
    
    /* About page */
    .stats-grid { gap: var(--space-4); }
    .stat-item { padding: var(--space-4); }
    .stat-number { font-size: var(--text-2xl); }
}

@media (max-width: 480px) {
    html { font-size: 14px; }
    .header-actions .btn-lang { display: none; }
    .header-login span,
    .header-login { font-size: var(--text-xs); }
    
    .page-hero { padding: var(--space-8) 0; }
    .page-hero h1 { font-size: var(--text-xl); }
    
    .footer-top { padding: var(--space-8) 0; }
    .footer-brand .logo-img { height: 40px; }
    
    .grid-2 { grid-template-columns: 1fr; }
    
    .section { padding: var(--space-8) 0; }
    
    .value-card, .icon-card { padding: var(--space-4); }
    .instruction-card { margin-bottom: var(--space-3); }
    .instruction-header h3 { font-size: var(--text-base); }
    .instruction-body { font-size: var(--text-sm); }
    .instruction-body p { font-size: var(--text-sm); line-height: 1.7; }
}