/* 
  SOZTAS - Ana Sayfa Stilleri
  Renk Paleti:
  - Kurumsal Mavi: #003366
  - Yeşil: #22C55E
*/

:root {
    --primary-blue: #003366;
    --accent-green: #22C55E;
    --text-dark: #1a202c;
    --text-muted: #4a5568;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --font-main: 'Montserrat', sans-serif;
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); color: var(--text-dark); line-height: 1.6; background-color: #fcfcfc; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ================= HEADER ================= */
.header {
    background-color: transparent;
    position: absolute;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    height: 85px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.header-container {
    display: flex; justify-content: space-between; align-items: center; width: 100%;
    gap: 28px; /* logo, menü ve butonlar dar ekranlarda da birbirine yapışmasın */
}
.logo { display: flex; align-items: center; height: 100%; }
.logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

/* NAV */
.nav { display: none; }
@media (min-width: 1200px) { .nav { display: block; } }
.nav-list { display: flex; gap: 22px; }
.nav-list a {
    font-weight: 500;
    white-space: nowrap;
    color: var(--white);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 5px 0;
}
.nav-list a:hover { color: rgba(255,255,255,0.7); }
.nav-list a::after {
    content: ''; position: absolute; bottom: 0; left: 50%;
    width: 0; height: 2px; background-color: var(--white);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); transform: translateX(-50%);
}
.nav-list a:hover::after { width: 100%; }

/* ACTIONS */
.header-actions { display: flex; align-items: center; gap: 12px; }
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 10px 18px;
    border-radius: 4px; /* Daha kurumsal, köşeli yapı */
    font-weight: 600; font-size: 13px;
    letter-spacing: 0.5px;
    cursor: pointer; transition: var(--transition); border: none; gap: 8px;
}
.btn-phone {
    background-color: transparent; color: var(--white);
    padding: 10px 15px; white-space: nowrap;
}
.btn-phone:hover { background-color: rgba(255,255,255,0.1); transform: translateY(-2px); }
.btn-whatsapp {
    display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px;
    background-color: #25D366; color: white;
    border-radius: 4px; font-size: 22px;
    transition: var(--transition);
}
.btn-whatsapp:hover { background-color: #1ebd5a; transform: translateY(-2px); }

/* MOBILE MENU */
.mobile-menu-btn { display: none; background: none; border: none; font-size: 24px; color: var(--white); cursor: pointer; }
@media (max-width: 1199px) {
    .mobile-menu-btn { display: block; }
}
@media (max-width: 991px) {
    .btn-phone { display: none; } /* Mobilde çok yer kaplamaması için gizlenebilir veya icon kalabilir */
}
.mobile-nav {
    display: none; position: absolute; top: 85px; left: 0; width: 100%;
    background-color: var(--white); box-shadow: 0 10px 15px rgba(0,0,0,0.05); padding: 20px;
}
.mobile-nav.active { display: block; }
.mobile-nav-list { display: flex; flex-direction: column; gap: 15px; }
.mobile-nav-list a { display: block; padding: 10px 0; font-weight: 600; color: #333; border-bottom: 1px solid var(--border-color); }

/* ================= HERO ================= */
.hero {
    position: relative; height: 100vh; min-height: 600px;
    display: flex; align-items: center; justify-content: center;
    text-align: center; overflow: hidden;
}
.hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(15, 25, 40, 0.65); /* Orijinal tasarımdaki gibi koyu ve tok */
}
.hero-content {
    position: relative; z-index: 1; max-width: 850px; color: var(--white);
    animation: fadeIn 1s ease-out;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.hero-subtitle {
    font-size: 16px; font-weight: 400; letter-spacing: 1px; margin-bottom: 20px;
}
.hero-title {
    font-size: 32px; font-weight: 700; line-height: 1.3; margin-bottom: 40px;
}
@media (min-width: 768px) { .hero-title { font-size: 46px; } }

.hero-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }
.btn-white {
    background-color: var(--white); color: var(--text-dark);
    padding: 14px 32px; font-size: 14px; text-transform: uppercase;
}
.btn-white:hover { background-color: #f0f0f0; }
.btn-outline {
    background-color: transparent; border: 1px solid var(--white); color: var(--white);
    padding: 13px 32px; font-size: 14px; text-transform: uppercase;
}
.btn-outline:hover { background-color: var(--white); color: var(--text-dark); }

/* ================= SERVICES ================= */
.services { padding: 90px 0; background-color: #f8fafc; }
.section-header { margin-bottom: 50px; position: relative; padding-left: 20px; }
.section-header::before { content: ''; position: absolute; left: 0; top: 0; height: 100%; width: 4px; background-color: var(--primary-blue); }
.section-title { font-size: 28px; color: var(--primary-blue); font-weight: 700; margin-bottom: 10px; text-transform: uppercase; }
.section-subtitle { color: var(--text-muted); font-size: 15px; }

.services-grid { display: grid; grid-template-columns: 1fr; gap: 30px; }
@media (min-width: 768px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }

.service-card {
    background: var(--white); border: 1px solid var(--border-color); border-radius: 4px;
    transition: var(--transition); display: flex; flex-direction: column; overflow: hidden;
}
.service-card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.05); }
.service-image { height: 220px; overflow: hidden; }
.service-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.service-card:hover .service-image img { transform: scale(1.05); }
.service-content { padding: 30px; flex-grow: 1; display: flex; flex-direction: column; }
.service-content h3 { font-size: 18px; color: var(--primary-blue); margin-bottom: 15px; font-weight: 700; }
.service-content p { color: var(--text-muted); font-size: 14px; margin-bottom: 25px; flex-grow: 1; }
.highlight-text { font-weight: 600; color: var(--primary-blue); }
.service-link { display: inline-flex; align-items: center; gap: 8px; color: var(--primary-blue); font-weight: 600; font-size: 14px; }
.service-link i { transition: transform 0.3s ease; }
.service-link:hover i { transform: translateX(5px); }

/* ================= PROJECTS ================= */
.projects { padding: 90px 0; background-color: var(--primary-blue); color: var(--white); }
.projects .section-header::before { background-color: var(--white); }
.projects .section-title { color: var(--white); }
.projects .section-subtitle { color: rgba(255,255,255,0.7); }
.projects-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 768px) { .projects-grid { grid-template-columns: repeat(3, 1fr); } }
.project-item { position: relative; border-radius: 4px; overflow: hidden; height: 350px; cursor: pointer; }
.project-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.project-overlay {
    position: absolute; bottom: 0; left: 0; width: 100%; padding: 30px;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: white; opacity: 0; transform: translateY(20px); transition: var(--transition); display: flex; align-items: flex-end;
}
.project-overlay span { font-size: 18px; font-weight: 600; }
.project-item:hover img { transform: scale(1.05); }
.project-item:hover .project-overlay { opacity: 1; transform: translateY(0); }

/* ================= INFO SECTION ================= */
.info-section { padding: 80px 0; background-color: var(--white); }
.info-grid { display: grid; grid-template-columns: 1fr; gap: 50px; align-items: center; }
@media (min-width: 992px) { .info-grid { grid-template-columns: 1fr 1fr; } }
.info-text h2 { font-size: 22px; color: var(--primary-blue); margin-bottom: 20px; font-weight: 700; text-transform: uppercase; }
.info-text p { color: var(--text-muted); margin-bottom: 30px; font-size: 15px; }
.specs-list { border-top: 1px solid var(--border-color); }
.specs-list li { display: flex; padding: 15px 0; border-bottom: 1px solid var(--border-color); font-size: 14px; }
.spec-label { width: 150px; flex-shrink: 0; font-weight: 600; color: var(--text-dark); }
.spec-value { color: var(--text-muted); flex-grow: 1; }
@media (max-width: 639px) {
    .specs-list li { flex-direction: column; gap: 4px; }
    .spec-label { width: auto; }
}
.info-image img { border-radius: 4px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }

/* ================= FOOTER ================= */
.footer { background-color: #0b1121; color: #e2e8f0; padding: 80px 0 0 0; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; margin-bottom: 60px; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; } }
.brand-col .logo { color: var(--white); margin-bottom: 20px; }
.footer-desc { color: #a0aec0; margin-bottom: 25px; font-size: 14px; }
.social-links a {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 38px; background-color: rgba(255,255,255,0.14); border-radius: 4px; font-size: 17px;
    color: var(--white); transition: var(--transition);
}
.social-links a:hover { background-color: var(--accent-green); transform: translateY(-3px); }
.footer h3 { color: var(--white); font-size: 16px; margin-bottom: 25px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: #a0aec0; font-size: 14px; transition: var(--transition); }
.footer-links a:hover { color: var(--white); padding-left: 5px; }
.footer-col p { color: #a0aec0; margin-bottom: 10px; font-size: 14px; }
.contact-info li { display: flex; align-items: flex-start; gap: 15px; margin-bottom: 15px; color: #a0aec0; font-size: 14px; }
.contact-info i { color: var(--accent-green); margin-top: 4px; }
.contact-info a { color: inherit; }
.contact-info a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 25px 0; text-align: center; color: #718096; font-size: 13px; }

/* ================= PAGE HERO (iç sayfalar) ================= */
.page-hero {
    position: relative; height: 380px; min-height: 320px;
    display: flex; align-items: flex-end; overflow: hidden;
}
.page-hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }
.page-hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.page-hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(15,25,40,0.8), rgba(15,25,40,0.6));
}
.page-hero-content { position: relative; z-index: 1; color: var(--white); padding-bottom: 45px; }
.page-hero h1 { font-size: 26px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; line-height: 1.25; }
@media (min-width: 768px) { .page-hero h1 { font-size: 38px; } }
.page-hero-content p { color: rgba(255,255,255,0.8); font-size: 15px; max-width: 640px; }
.breadcrumb { font-size: 13px; color: rgba(255,255,255,0.65); margin-bottom: 14px; letter-spacing: 0.5px; }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb span { margin: 0 8px; }

/* ================= CONTENT ================= */
.content-section { padding: 80px 0; background-color: var(--white); }
.content-section.alt { background-color: #f8fafc; }
.content-narrow { max-width: 820px; }
.content-block { margin-bottom: 55px; }
.content-block:last-child { margin-bottom: 0; }
.content-block h2 { font-size: 21px; color: var(--primary-blue); font-weight: 700; text-transform: uppercase; margin-bottom: 18px; }
.content-block h3 { font-size: 17px; color: var(--primary-blue); font-weight: 700; margin-bottom: 12px; }
.content-block p { color: var(--text-muted); font-size: 15px; margin-bottom: 16px; }
.content-block p:last-child { margin-bottom: 0; }
.content-block .signature { font-style: italic; color: var(--text-dark); font-weight: 600; }
.feature-list { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 22px; }
@media (min-width: 768px) { .feature-list { grid-template-columns: repeat(2, 1fr); } }
.feature-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-muted); font-size: 14px; }
.feature-list i { color: var(--accent-green); margin-top: 4px; }

/* ================= GALLERY ================= */
.gallery-section { padding: 80px 0; background-color: #f8fafc; }
.gallery-section.on-white { background-color: var(--white); }
.gallery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media (min-width: 768px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; } }
@media (min-width: 1024px) { .gallery-grid { grid-template-columns: repeat(4, 1fr); } }
.gallery-item { position: relative; border-radius: 4px; overflow: hidden; height: 190px; background-color: var(--border-color); margin: 0; }
@media (min-width: 768px) { .gallery-item { height: 230px; } }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item figcaption {
    position: absolute; left: 0; bottom: 0; width: 100%; padding: 14px;
    font-size: 12px; font-weight: 600; color: var(--white); line-height: 1.35;
    background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
}

/* ================= CTA BAND ================= */
.cta-band { background-color: var(--primary-blue); color: var(--white); padding: 65px 0; text-align: center; }
.cta-band h2 { font-size: 22px; font-weight: 700; text-transform: uppercase; margin-bottom: 12px; }
@media (min-width: 768px) { .cta-band h2 { font-size: 26px; } }
.cta-band p { color: rgba(255,255,255,0.75); margin-bottom: 30px; font-size: 15px; }
.cta-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }
.btn-green { background-color: var(--accent-green); color: var(--white); padding: 14px 32px; font-size: 14px; text-transform: uppercase; }
.btn-green:hover { background-color: #1ba94c; }

/* ================= CONTACT ================= */
.contact-section { padding: 80px 0; background-color: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 25px; }
@media (min-width: 768px) { .contact-grid { grid-template-columns: repeat(3, 1fr); } }
.contact-card { border: 1px solid var(--border-color); border-radius: 4px; padding: 30px; transition: var(--transition); }
.contact-card:hover { box-shadow: 0 10px 25px rgba(0,0,0,0.05); transform: translateY(-3px); }
.contact-card i { font-size: 22px; color: var(--accent-green); margin-bottom: 16px; display: block; }
.contact-card h3 { font-size: 14px; color: var(--primary-blue); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; font-weight: 700; }
.contact-card p { color: var(--text-muted); font-size: 14px; margin-bottom: 4px; }
.contact-card a { color: var(--text-muted); font-size: 14px; }
.contact-card a:hover { color: var(--primary-blue); }
.footer-logo { display: inline-block; margin-bottom: 22px; }
.footer-logo img { height: 46px; width: auto; }

/* ================= VIDEO ================= */
.video-section { padding: 80px 0; background-color: var(--white); }
.video-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 768px) { .video-grid { grid-template-columns: repeat(3, 1fr); } }
.video-item { margin: 0; }
.video-frame {
    position: relative; width: 100%; aspect-ratio: 4 / 3;
    background-color: #0b1121; border-radius: 4px; overflow: hidden;
}
.video-frame video { width: 100%; height: 100%; object-fit: contain; display: block; }
.video-item figcaption { margin-top: 12px; font-size: 13px; font-weight: 600; color: var(--primary-blue); }

/* ================= ÜRÜN TÜRLERİ TABLOSU ================= */
.product-table { border-top: 1px solid var(--border-color); margin-top: 24px; }
.product-table li {
    display: grid; grid-template-columns: 1fr; gap: 4px;
    padding: 16px 0; border-bottom: 1px solid var(--border-color);
}
@media (min-width: 640px) { .product-table li { grid-template-columns: 170px 90px 1fr; gap: 16px; align-items: baseline; } }
.product-table .pt-name { font-weight: 600; color: var(--text-dark); font-size: 14px; }
.product-table .pt-thick { font-size: 13px; color: var(--accent-green); font-weight: 600; }
.product-table .pt-use { font-size: 14px; color: var(--text-muted); }
.mt-22 { margin-top: 22px; }