/* ============================================
   BİLİRKİŞİM.COM - PAGE STYLES
   Page-specific styles and sections
   ============================================ */

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

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

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0;
    padding-bottom: 0;
}

.site-logo {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-heading);
    color: var(--color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-accent {
    color: var(--color-accent-gold);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-menu {
    display: flex;
    gap: var(--space-6);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    text-decoration: none;
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent-gold);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--color-primary);
}

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

/* Dropdown Menu */
.nav-item.has-dropdown {
    position: relative;
}

.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 250px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
    z-index: var(--z-dropdown);
}

.nav-item.has-dropdown:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: var(--color-gray-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

.dropdown-item:hover {
    background: var(--color-gray-50);
    color: var(--color-primary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    color: var(--color-primary);
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 24px;
}

.hamburger span {
    display: block;
    height: 3px;
    background: currentColor;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><linearGradient id="grad" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:rgba(196,165,98,0.1);stop-opacity:1" /><stop offset="100%" style="stop-color:rgba(52,152,219,0.1);stop-opacity:1" /></linearGradient></defs><rect fill="url(%23grad)" width="1200" height="600"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--space-6);
    line-height: var(--line-height-tight);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
    line-height: var(--line-height-relaxed);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

/* ============================================
   SECTIONS
   ============================================ */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-12);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-4);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent-gold), var(--color-accent-blue));
    border-radius: var(--radius-full);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
}

/* Alternate Background */
.section-alt {
    background: var(--color-gray-50);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding-top: var(--space-16);
    padding-bottom: var(--space-8);
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-section h4 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-4);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: var(--font-size-sm);
}

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

.footer-bottom {
    padding-top: var(--space-6);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

/* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: var(--z-fixed);
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--color-white);
    border-radius: 50%;
    box-shadow: var(--shadow-xl);
    text-decoration: none;
    font-size: 32px;
    transition: all var(--transition-base);
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-2xl);
    color: var(--color-white);
}

/* ============================================
   RESPONSIVE - MOBILE & TABLET
   ============================================ */
@media (max-width: 1024px) {
    .nav-menu {
        gap: var(--space-4);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--color-white);
        box-shadow: var(--shadow-xl);
        padding: var(--space-6);
        flex-direction: column;
        align-items: stretch;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all var(--transition-base);
    }

    .main-nav.active {
        max-height: calc(100vh - 60px);
        opacity: 1;
        overflow-y: auto;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0;
    }

    .nav-link {
        display: block;
        padding: var(--space-3) 0;
        border-bottom: 1px solid var(--color-gray-100);
    }

    .nav-dropdown {
        position: static;
        box-shadow: none;
        padding-left: var(--space-4);
        transform: none;
    }

    .nav-item.has-dropdown:hover .nav-dropdown {
        transform: none;
    }

    .header-cta {
        width: 100%;
        margin-top: var(--space-4);
    }

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

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .whatsapp-float {
        bottom: 16px;
        right: 16px;
    }

    .whatsapp-btn {
        width: 50px;
        height: 50px;
        font-size: 28px;
    }
}