/* ============================
   CSS VARIABLES (Renk Paleti)
   ============================ */
:root {
    --navbar-height: 80px;
    --navbar-position: fixed;
    --primary-dark: #0A192F;
    --primary-light: #172A45;
    --primary-hover: #233554;
    --accent-blue: #00D4FF;
    --accent-orange: #FF6B35;
    --white: #FFFFFF;
    --gray: #8892B0;
    --gray-light: #CCD6F6;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 20px 40px rgba(0, 212, 255, 0.15);
    --radius: 12px;
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', sans-serif;
}

/* ============================
   NAVBAR
   ============================ */
#navbar {
    position: var(--navbar-position) !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    z-index: 1000 !important;
    background: rgba(10, 25, 47, 0.95) !important;
    backdrop-filter: blur(12px) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
    padding: 12px 0 !important;
    transition: var(--transition) !important;
    transform: translateZ(0) !important;
    will-change: transform !important;
}

/* ============================
   RESET & BASE
   ============================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    background-color: var(--primary-dark);
    color: var(--white);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

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

/* ============================
   BUTTONS
   ============================ */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--accent-orange);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-dark);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--accent-blue);
    border: 2px solid var(--accent-blue);
    padding: 8px 20px;
    font-size: 0.85rem;
}

.btn-outline:hover {
    background: var(--accent-blue);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-demo {
    background: var(--accent-orange);
    color: var(--white);
    padding: 8px 20px;
    font-size: 0.85rem;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn-demo:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
    padding: 14px 30px;
    display: inline-block;
    border-radius: 30px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

/* ============================
   SECTION TITLES
   ============================ */
.section-title {
    font-family: var(--font-primary);
    font-size: 2.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 10px;
    color: var(--white);
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 50px;
}

/* ============================
   NAVBAR
   ============================ */
#navbar {
    position: var(--navbar-position);
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 12px 0;
    transition: var(--transition);
    transform: translateZ(0);
    will-change: transform;
}

#navbar.scrolled {
    padding: 8px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

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

.nav-logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--white);
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu>li>a {
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--gray-light);
    transition: var(--transition);
}

.nav-menu>li>a:hover {
    color: var(--accent-blue);
    background: rgba(0, 212, 255, 0.08);
}

.nav-contact-btn {
    background: var(--accent-orange);
    color: var(--white) !important;
    padding: 8px 20px !important;
    border-radius: 25px !important;
    font-weight: 600 !important;
}

.nav-contact-btn:hover {
    background: #e55a2b !important;
    color: var(--white) !important;
    transform: translateY(-2px);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--primary-light);
    min-width: 220px;
    border-radius: var(--radius);
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    color: var(--gray-light);
    transition: var(--transition);
    font-size: 0.9rem;
}

.dropdown-menu li a:hover {
    background: rgba(0, 212, 255, 0.08);
    color: var(--accent-blue);
}

/* ============================
   NAVBAR RIGHT (Dil + Saat + Hamburger)
   ============================ */
.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Dil Dropdown */
.lang-dropdown {
    position: relative;
}

.lang-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.lang-btn:hover {
    border-color: var(--accent-blue);
}

.lang-btn i {
    font-size: 0.7rem;
    margin-left: 4px;
}

.lang-menu {
    position: absolute;
    top: 110%;
    right: 0;
    background: var(--primary-light);
    border-radius: var(--radius);
    min-width: 160px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.lang-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-menu li {
    padding: 10px 20px;
    cursor: pointer;
    color: var(--gray-light);
    transition: var(--transition);
    font-size: 0.9rem;
}

.lang-menu li:hover {
    background: rgba(0, 212, 255, 0.08);
    color: var(--accent-blue);
}

.lang-menu li.active-lang {
    color: var(--accent-blue);
    background: rgba(0, 212, 255, 0.08);
}

/* Canlı Saat */
.nav-clock {
    color: var(--gray);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    min-width: 100px;
    text-align: right;
}

/* Hamburger */
.hamburger {
    display: none;
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px 8px;
}

/* ============================
   HERO
   ============================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    /* Arka plan görseli yerine renk kullanıyoruz */
    background: linear-gradient(135deg, #0A192F 0%, #172A45 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 25, 47, 0.92) 0%, rgba(10, 25, 47, 0.75) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--white) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto 35px;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.hero-icons {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.hero-icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--gray);
    transition: var(--transition);
}

.hero-icon-item i {
    font-size: 2.2rem;
    color: var(--accent-blue);
}

.hero-icon-item span {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-icon-item:hover {
    transform: translateY(-5px);
    color: var(--white);
}

.hero-icon-item:hover i {
    color: var(--accent-orange);
}

/* ============================
   SERVICES
   ============================ */
.services {
    padding: 100px 0;
    background: var(--primary-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--primary-light);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(0, 212, 255, 0.2);
}

.service-image {
    height: 200px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-image img {
    transform: scale(1.05);
}

.service-content {
    padding: 25px;
}

.service-content h3 {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.service-content p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 18px;
}

.service-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ============================
   PROJECTS
   ============================ */
.projects {
    padding: 80px 0;
}

.completed-projects {
    background: var(--primary-dark);
}

.ongoing-projects {
    background: var(--primary-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--primary-dark);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-info {
    padding: 20px;
}

.project-info h4 {
    font-family: var(--font-primary);
    font-size: 1.15rem;
    margin-bottom: 6px;
}

.project-info p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 14px;
}

.project-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--accent-orange);
    color: var(--white);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================
   ABOUT
   ============================ */
.about {
    padding: 100px 0;
    background: var(--primary-dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 100%;
    height: auto;
}

.about-content .section-title {
    text-align: left;
}

.about-content p {
    color: var(--gray);
    font-size: 1.05rem;
    margin-bottom: 25px;
    line-height: 1.8;
}

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.about-tags span {
    background: var(--primary-light);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--gray-light);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.about-tags span:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* ============================
   CONTACT
   ============================ */
.contact {
    padding: 100px 0;
    background: var(--primary-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 25px;
}

.contact-item i {
    font-size: 1.6rem;
    color: var(--accent-blue);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.08);
    border-radius: 50%;
}

.contact-item h4 {
    font-family: var(--font-primary);
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.contact-item p {
    color: var(--gray);
    font-size: 0.95rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    padding: 14px 18px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: var(--primary-dark);
    color: var(--white);
    font-size: 0.95rem;
    transition: var(--transition);
    font-family: var(--font-secondary);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.contact-form select option {
    background: var(--primary-dark);
}

.contact-form textarea {
    resize: vertical;
}

.contact-form .btn {
    align-self: flex-start;
}

/* ============================
   FOOTER
   ============================ */
.footer {
    background: var(--primary-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 50px 0 25px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 10px;
}

.footer-logo span {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.5rem;
    display: block;
    margin-bottom: 8px;
}

.footer-logo p {
    color: var(--gray);
    font-size: 0.95rem;
}

.footer-links h4,
.footer-social h4 {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.footer-links ul li {
    margin-bottom: 8px;
}

.footer-links ul li a {
    color: var(--gray);
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-links ul li a:hover {
    color: var(--accent-blue);
}

.social-icons {
    display: flex;
    gap: 14px;
}

.social-icons a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--gray-light);
    transition: var(--transition);
    font-size: 1.2rem;
}

.social-icons a:hover {
    background: var(--accent-blue);
    color: var(--primary-dark);
    transform: translateY(-4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-bottom p {
    color: var(--gray);
    font-size: 0.9rem;
}

.footer-counter {
    color: var(--gray);
    font-size: 0.9rem;
}

/* ============================
   RESPONSIVE (Temel)
   ============================ */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--primary-dark);
        flex-direction: column;
        padding: 80px 30px 30px;
        transition: var(--transition);
        box-shadow: var(--shadow);
        overflow-y: auto;
        gap: 4px;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu>li>a {
        display: block;
        padding: 12px 16px;
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: transparent;
        padding: 0 0 0 16px;
        display: none;
    }

    .dropdown:hover .dropdown-menu {
        display: block;
    }

    .hamburger {
        display: block;
    }

    .nav-contact-btn {
        display: inline-block;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-icons {
        gap: 20px;
    }

    .section-title {
        font-size: 2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .social-icons {
        justify-content: center;
    }

    .nav-clock {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }

    .service-buttons {
        flex-direction: column;
    }
}