/*
Theme Name: Altun Bilişim Kurumsal
Theme URI: https://artunbilisim.com
Author: Altun Bilişim
Description: Profesyonel kurumsal web ve sunucu çözümleri için özel hazırlanan dinamik tema.
Version: 1.0
Text Domain: altunbilisim
*/

/* ==========================================================
   ALTUN BİLİŞİM - DÜZELTİLMİŞ VE KARARLI KURUMSAL STİLLER
   ========================================================== */

:root {
    --primary-blue: #0b2545;
    --accent-blue: #134074;
    --bright-blue: #0066ff;
    --dark-bg: #071628;
    --bg-light: #f8f9fa;
    --text-dark: #212529;
    --text-color: #333333;
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    background-color: #ffffff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* --- HEADER VE ÜST BAR --- */
.site-header-corporate {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(11, 37, 69, 0.08);
}

.top-bar {
    background: var(--primary-blue);
    color: #ffffff;
    font-size: 0.82rem;
    padding: 6px 0;
}

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

.top-contact {
    display: flex;
    gap: 20px;
}

.top-contact span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.top-contact span i {
    color: var(--bright-blue);
}

.top-social {
    display: flex;
    gap: 12px;
}

.top-social a {
    color: #fff;
    font-size: 0.85rem;
    transition: color 0.3s;
}

.top-social a:hover {
    color: var(--bright-blue);
}

.main-header {
    padding: 10px 0;
    background: #ffffff;
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 65px;
    position: relative;
}

.site-logo img {
    max-height: 40px;
    width: auto;
    display: block;
}

.main-navigation ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 28px;
    margin: 0;
    padding: 0;
}

.main-navigation a {
    text-decoration: none;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.main-navigation a:hover {
    color: var(--bright-blue);
}

/* --- HERO SLİDER DÜZENİ --- */
.hero-slider-section {
    position: relative;
    height: 600px;
    background: var(--primary-blue);
    overflow: hidden;
}

.slider-track {
    height: 100%;
    position: relative;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease-in-out, visibility 0.6s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.hero-container-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
    width: 100%;
}

.hero-text-content {
    color: #fff;
    z-index: 3;
}

.hero-badge {
    background: rgba(0, 102, 255, 0.25);
    color: #60a5fa;
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 102, 255, 0.4);
}

.hero-text-content h1 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-text-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    opacity: 0.9;
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn-primary {
    background: var(--bright-blue);
    color: #fff;
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    transition: background 0.3s;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.4);
}

.btn-primary:hover {
    background: #0052cc;
}

.btn-secondary {
    background: transparent;
    color: #fff;
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    border: 2px solid rgba(255,255,255,0.3);
    transition: all 0.3s;
}

.btn-secondary:hover {
    border-color: #fff;
    background: rgba(255,255,255,0.08);
}

.hero-visual-box {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-card-badge {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 25px 35px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: #fff;
    text-align: center;
}

.tech-card-badge i {
    font-size: 2.8rem;
    color: #60a5fa;
}

.tech-card-badge span {
    font-weight: 600;
    font-size: 1rem;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}
.slider-arrow:hover { background: var(--bright-blue); }
.prev-arrow { left: 20px; }
.next-arrow { right: 20px; }

.slider-dots {
    position: absolute;
    bottom: 20px;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 8px;
    z-index: 10;
}
.dot {
    cursor: pointer;
    height: 8px;
    width: 8px;
    background-color: rgba(255,255,255,0.4);
    border-radius: 50%;
    transition: all 0.3s;
}
.dot.active {
    background-color: var(--bright-blue);
    width: 25px;
    border-radius: 4px;
}

/* --- HAKKIMIZDA BÖLÜMÜ --- */
.about-section {
    padding: 90px 0;
    background: #fff;
}
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
}
.section-tag {
    color: var(--bright-blue);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    display: inline-block;
    margin-bottom: 10px;
}
.about-content h2 {
    font-size: 2.3rem;
    color: var(--primary-blue);
    font-weight: 800;
    margin-bottom: 20px;
}
.lead-text {
    font-size: 1.05rem;
    color: #495057;
    line-height: 1.7;
    margin-bottom: 25px;
}
.feature-bullets {
    display: grid;
    gap: 12px;
}
.bullet-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: var(--accent-blue);
}
.bullet-item i { color: var(--bright-blue); }
.about-stats-box {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.stat-card {
    background: var(--bg-light);
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #e9ecef;
}
.stat-card h3 {
    font-size: 2.3rem;
    color: var(--bright-blue);
    font-weight: 800;
    margin-bottom: 5px;
}
.stat-card p { color: #6c757d; font-weight: 600; margin: 0; }

/* --- HİZMETLER 4'LÜ GRID --- */
.services-section {
    padding: 90px 0;
    background: var(--bg-light);
}
.section-header {
    max-width: 700px;
    margin: 0 auto 50px auto;
    text-align: center;
}
.section-header h2 {
    font-size: 2.3rem;
    color: var(--primary-blue);
    font-weight: 800;
    margin: 10px 0 15px 0;
}
.section-header p { color: #6c757d; font-size: 1.05rem; }

.services-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.service-box {
    background: #fff;
    padding: 35px 25px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(11,37,69,0.04);
    border-top: 4px solid var(--bright-blue);
    display: flex;
    flex-direction: column;
}
.service-icon {
    font-size: 2.3rem;
    color: var(--bright-blue);
    margin-bottom: 20px;
}
.service-box h3 {
    font-size: 1.2rem;
    color: var(--primary-blue);
    font-weight: 700;
    margin-bottom: 15px;
}
.service-box p {
    color: #6c757d;
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}
.service-link {
    color: var(--bright-blue);
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* --- İLETİŞİM ALANI & FOOTER --- */
.contact-section {
    padding: 90px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    color: #fff;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.contact-info-col h2 {
    font-size: 2.3rem;
    font-weight: 800;
    margin: 10px 0 20px 0;
}
.contact-info-col p { opacity: 0.9; font-size: 1.05rem; line-height: 1.7; margin-bottom: 30px; }
.contact-details-list { display: grid; gap: 15px; }
.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255,255,255,0.05);
    padding: 15px 20px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
}
.contact-item i { font-size: 1.5rem; color: var(--bright-blue); }
.contact-item span { font-size: 0.8rem; opacity: 0.7; display: block; }
.contact-item strong { font-size: 1rem; }

.custom-corporate-form {
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    color: var(--text-dark);
}
.custom-corporate-form h3 { font-size: 1.5rem; color: var(--primary-blue); font-weight: 800; margin-bottom: 20px; }
.form-group { margin-bottom: 15px; }
.custom-corporate-form input, 
.custom-corporate-form textarea,
.custom-corporate-form select {
    width: 100% !important;
    padding: 12px !important;
    border-radius: 6px !important;
    border: 1px solid #ced4da !important;
    font-size: 0.95rem !important;
    background: #fff !important;
}
.custom-corporate-form textarea { resize: none; }
.btn-submit-form {
    width: 100%;
    background: var(--bright-blue);
    color: #fff;
    border: none;
    padding: 14px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}

/* Kurumsal Footer ve Logo Düzeltmesi */
.site-footer-corporate {
    background: var(--dark-bg);
    color: #ffffff;
    padding: 70px 0 0 0;
    border-top: 4px solid var(--bright-blue);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 30px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-col h3 { font-size: 1.1rem; font-weight: 700; color: #ffffff; margin-bottom: 20px; position: relative; padding-bottom: 8px; }
.footer-col h3::after { content: ''; position: absolute; left: 0; bottom: 0; width: 30px; height: 3px; background: var(--bright-blue); }
.footer-col p { color: rgba(255, 255, 255, 0.7); font-size: 0.9rem; line-height: 1.6; margin-bottom: 15px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-col ul li a { color: rgba(255, 255, 255, 0.7); text-decoration: none; transition: color 0.3s; }
.footer-col ul li a:hover { color: var(--bright-blue); }
.footer-contact-info li { color: rgba(255, 255, 255, 0.8); display: flex; align-items: center; gap: 10px; font-size: 0.9rem; }
.footer-socials { display: flex; gap: 10px; }
.footer-socials a { width: 35px; height: 35px; background: rgba(255, 255, 255, 0.08); display: flex; align-items: center; justify-content: center; border-radius: 6px; color: #fff; }

/* Footer Logo Boyut ve Zemin Kontrolü */
.footer-logo {
    margin-bottom: 20px;
    display: inline-block;
    background: rgba(255, 255, 255, 0.95);
    padding: 10px 18px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
.footer-logo img {
    max-height: 38px !important;
    width: auto !important;
    display: block !important;
}

.footer-bottom { padding: 20px 0; background: rgba(0, 0, 0, 0.2); }
.footer-bottom-flex { display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; color: rgba(255, 255, 255, 0.6); }

/* Responsive Düzen */
@media(max-width: 1024px) {
    .services-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .hero-container-grid, .about-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
    .hero-visual-box { display: none; }
}


/* --- MOBİL MENÜ STİLLERİ (GÜNCELLENMİŞ) --- */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-blue);
    cursor: pointer;
    padding: 5px;
}

@media(max-width: 992px) {
    .mobile-menu-toggle {
        display: block;
    }
    .main-navigation {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #ffffff;
        box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        z-index: 999;
    }
    .main-navigation.active {
        display: block !important;
    }
    .main-navigation ul {
        flex-direction: column !important;
        align-items: flex-start !important;
        padding: 20px 25px !important;
        gap: 15px !important;
        width: 100%;
    }
    .main-navigation ul li {
        width: 100%;
    }
    .main-navigation ul li a {
        display: block;
        padding: 8px 0;
        font-size: 1.05rem;
        border-bottom: 1px solid #f1f3f5;
        width: 100%;
    }
    .top-bar {
        display: none; /* Mobilde üst barı gizleyerek header yüksekliğini dengeliyoruz */
    }
}