.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.structural-grid {
    background-image: radial-gradient(#cbd5e1 0.5px, transparent 0.5px);
    background-size: 24px 24px;
}


:root {
    --primary: #041627;
    --primary-container: #1a2b3c;
    --secondary: #006d37;
    --secondary-container: #6bfe9c;
    --on-secondary: #ffffff;
    --on-secondary-container: #00743a;
    --surface: #f8f9ff;
    --surface-container-lowest: #ffffff;
    --surface-container: #e6eeff;
    --on-surface: #0d1c2e;
    --on-surface-variant: #44474c;
    --outline-variant: #0335e9;
    --primary-fixed-dim: #b7c8de;
    --secondary-fixed: #6bfe9c;

    --primary-navy: #1a2b3c;
    --secondary-green: #4ae183;

    --surface-bright: #f8f9ff;
    --surface-container: #e6eeff;
    --outline-variant: #c4c6cd;
    --border-radius-custom: 0.5rem;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--on-surface);
    background-color: var(--surface);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
.headline {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.material-symbols-outlined {
    vertical-align: middle;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Navbar Customization */
.navbar {
    background-color: rgba(248, 249, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--outline-variant);
    height: 80px;
}

.nav-link {
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--on-surface-variant);
    padding: 0.5rem 1rem !important;
}

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

.nav-link.active {
    color: var(--primary) !important;
    border-bottom: 2px solid var(--primary);
}

/* Mobil'de menünün altına beyaz arkaplan koyuyoruz. */
@media (max-width: 991.98px) {
    #navbarNav {
        background-color: #ffffff;
        /* Beyaz arkaplan */
        padding: 1.5rem;
        /* İçeriklerin kenarlara yapışmasını önler */
        border-radius: 8px;
        /* Menü köşelerini hafif yuvarlatır */
        margin-top: 15px;
        /* Logo ile menü arasına biraz boşluk bırakır */
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        /* Menünün havada durduğu hissini veren hafif gölge */
    }

    /* Mobil menüdeki linklerin beyaz zemin üzerinde okunabilmesi için renk ayarı */
    #navbarNav .navbar-nav .nav-link {
        color: #333333 !important;
        padding-top: 10px;
        padding-bottom: 10px;
        border-bottom: 1px solid #f0f0f0;
        /* Linkler arasına ince bir çizgi çeker */
    }

    /* Son linkin altındaki çizgiyi kaldırır */
    #navbarNav .navbar-nav li:last-child .nav-link {
        border-bottom: none;
    }

    /* Arama butonu ve "Teklif Alın" butonunun etrafına boşluk ekler */
    #navbarNav .d-flex {
        margin-top: 15px;
        flex-direction: column;
        /* Mobilde butonları alt alta dizebilirsin (isteğe bağlı) */
        align-items: flex-start !important;
    }
}


/* Hero Section */
.hero-section {
    background-size: cover;
    /* Fotoğrafın alanı tamamen kaplamasını sağlar */
    background-position: center;
    /* Fotoğrafı tam ortalar */
    background-repeat: no-repeat;
    /* Fotoğrafın tekrarlanmasını önler */
    min-height: 80vh;
    /* Hero alanının yüksekliğini belirler */
    display: flex;
    align-items: center;
    /* İçerikleri dikeyde ortalar */
    justify-content: center;
    /* İçerikleri yatayda ortalar */
    color: #ffffff;
    /* Metin rengi (Fotoğrafın üstünde okunması için) */
    position: relative;
}

/* Fotoğraf çok açıksa ve metinler okunmuyorsa üzerine koyu bir katman ekler */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    /* %40 koyulukta siyah transparan katman */
    z-index: 1;
}

/* İçeriklerin siyah katmanın üstünde kalması için */
.hero-section .container {
    position: relative;
    z-index: 2;
}

/* Buttons */
.btn-primary-custom {
    background-color: var(--secondary);
    color: var(--on-secondary);
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
}

.btn-primary-custom:hover {
    background-color: var(--on-secondary-container);
    color: white;
    transform: scale(0.98);
}

.btn-outline-custom {
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    color: white;
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    border-radius: 0.25rem;
}

.btn-outline-custom:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.btn-quote {
    background-color: #006d37;
    /* Original secondary */
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius-custom);
    border: none;
    transition: all 0.2s;
}

.btn-quote:hover {
    background-color: #005228;
    color: #ffffff;
}


/* Cards */
.competency-card {
    background: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: 0.25rem;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
}

.competency-card:hover {
    border-color: var(--secondary);
    transform: translateY(-5px);
}

.icon-box {
    width: 64px;
    height: 64px;
    background-color: var(--secondary-container);
    color: var(--on-secondary-container);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.25rem;
    margin-bottom: 1.5rem;
}

/* Logo Bar */
.logo-bar {
    background-color: var(--primary);
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-item {
    opacity: 0.4;
    filter: grayscale(1) contrast(1.25);
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-size: 13px;
}

/* Stats & Engineering Section */
.stat-item {
    border-left: 1px solid var(--outline-variant);
    padding-left: 1rem;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background-color: var(--surface-container);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
    flex-shrink: 0;
}

/* Abstract Pattern Box */
.abstract-graphic {
    aspect-ratio: 1/1;
    background-color: var(--surface-container);
    position: relative;
    overflow: hidden;
    border-radius: 0.25rem;
}

.pattern-overlay {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: radial-gradient(var(--secondary) 1px, transparent 1px);
    background-size: 20px 20px;
}

.rotated-boxes {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.box-level {
    border: 1px solid rgba(0, 109, 55, 0.4);
    transform: rotate(12deg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.callout-badge {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background-color: var(--primary);
    color: white;
    padding: 1.5rem;
    border-radius: 0.25rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 200px;
}

.badge-industrial {
    background-color: #6bfe9c;
    color: #00743a;
    font-size: 12px;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 0.125rem;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.btn-tech {
    background-color: var(--primary-navy);
    color: #ffffff;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-custom);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
}

/* CTA Section */
.cta-section {
    background-color: var(--surface-container);
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.blueprint-grid {
    position: absolute;
    inset: 0;
    opacity: 0.05;
    background-image: linear-gradient(var(--primary) 1px, transparent 1px),
        linear-gradient(90deg, var(--primary) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Footer */
footer {
    background-color: var(--primary);
    color: white;
    padding: 5rem 0 2rem;
}

footer a {
    color: rgba(183, 200, 222, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

footer a:hover {
    color: var(--secondary-fixed);
}

.footer-heading {
    color: var(--secondary-fixed);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}