/* --- Variables --- */
:root {
    --color-navy: #0a192f;      /* Kurumsal Lacivert */
    --color-navy-light: #112240;
    --color-teal: #64ffda;      /* Vurgu Rengi */
    --color-slate: #8892b0;     /* Gri */
    --color-white: #e6f1ff;
    
    --font-heading: 'Barlow', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    
    --radius: 4px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-heading);
    background-color: var(--color-navy);
    color: var(--color-slate);
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { width: 90%; max-width: 1200px; margin: 0 auto; }

/* --- Market Ticker --- */
.market-bar { background-color: #020c1b; color: var(--color-teal); font-family: var(--font-mono); font-size: 0.75rem; padding: 5px 0; border-bottom: 1px solid rgba(100, 255, 218, 0.1); }
.ticker-flex { display: flex; justify-content: flex-end; gap: 20px; flex-wrap: wrap; }

/* --- Header --- */
.pro-header {
    background-color: rgba(10, 25, 47, 0.95);
    padding: 20px 0;
    position: sticky; top: 0; z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo { font-size: 1.8rem; font-weight: 700; color: var(--color-white); letter-spacing: 1px; display: flex; align-items: center; gap: 10px; }
.teal-text { color: var(--color-teal); }
.badge-b2b { font-size: 0.7rem; background: var(--color-teal); color: var(--color-navy); padding: 2px 6px; border-radius: 2px; font-weight: 800; }

.corp-nav ul { display: flex; gap: 30px; align-items: center; }
.corp-nav a { font-size: 0.9rem; font-weight: 500; color: var(--color-white); }
.corp-nav a:hover, .corp-nav a.active { color: var(--color-teal); }

.btn-outline { border: 1px solid var(--color-teal); color: var(--color-teal) !important; padding: 8px 20px; border-radius: var(--radius); font-family: var(--font-mono); font-size: 0.8rem; }
.btn-outline:hover { background-color: rgba(100, 255, 218, 0.1); }

.mobile-toggle { display: none; background: none; border: none; color: var(--color-teal); font-size: 1.5rem; cursor: pointer; }

/* --- Mobile Menu --- */
.mobile-menu {
    position: fixed; top: 0; right: -100%; width: 250px; height: 100%;
    background-color: var(--color-navy-light); z-index: 2000;
    display: flex; flex-direction: column; padding: 40px; gap: 20px;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5); transition: 0.3s ease; border-left: 2px solid var(--color-teal);
}
.mobile-menu.active { right: 0; }
.close-menu { align-self: flex-end; font-size: 1.5rem; color: var(--color-teal); background: none; border: none; cursor: pointer; }
.mobile-menu a { font-family: var(--font-mono); font-size: 1.1rem; color: var(--color-white); border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 10px; }

/* --- Hero --- */
.hero-b2b { padding: 100px 0; display: grid; grid-template-columns: 1.5fr 1fr; gap: 50px; align-items: center; min-height: 600px; }

.tag-tech { font-family: var(--font-mono); color: var(--color-teal); font-size: 0.9rem; margin-bottom: 20px; display: block; }
.hero-content h1 { font-size: 4rem; line-height: 1.1; color: var(--color-white); margin-bottom: 25px; }
.hero-content p { font-size: 1.1rem; margin-bottom: 40px; max-width: 500px; }

.hero-actions { display: flex; gap: 20px; align-items: center; }
.btn-teal { background-color: var(--color-teal); color: var(--color-navy); padding: 15px 30px; border-radius: var(--radius); font-weight: 700; font-family: var(--font-mono); }
.btn-teal:hover { background-color: #fff; }
.btn-text { color: var(--color-white); font-weight: 600; text-decoration: underline; }

.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stat-card { background-color: var(--color-navy-light); padding: 30px; border-radius: var(--radius); text-align: center; border: 1px solid rgba(255,255,255,0.05); }
.stat-card strong { display: block; font-size: 2.5rem; color: var(--color-white); margin-bottom: 5px; }
.stat-card span { font-family: var(--font-mono); font-size: 0.8rem; color: var(--color-teal); }

/* --- Modules --- */
.section-padding { padding: 100px 0; }
.section-header { margin-bottom: 60px; }
.section-header h2 { font-size: 2.5rem; color: var(--color-white); margin-bottom: 15px; }
.line-teal { width: 80px; height: 4px; background-color: var(--color-teal); }

.modules-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.module-card { background-color: var(--color-navy-light); padding: 40px 30px; border-radius: var(--radius); transition: 0.3s; cursor: default; }
.module-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.module-card .icon { font-size: 2.5rem; margin-bottom: 20px; }
.module-card h3 { color: var(--color-white); font-size: 1.3rem; margin-bottom: 15px; }
.module-card p { font-size: 0.95rem; }

/* --- Split (About) --- */
.page-title { text-align: center; margin-bottom: 60px; }
.page-title h1 { font-size: 3rem; color: var(--color-white); }

.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.text-content h2 { color: var(--color-white); font-size: 2rem; margin-bottom: 20px; }
.check-list { margin-top: 20px; list-style: none; font-family: var(--font-mono); font-size: 0.9rem; }
.check-list li { margin-bottom: 10px; color: var(--color-teal); }
.check-list li::before { content: '>'; margin-right: 10px; }

.image-content { position: relative; }
.image-content img { border-radius: var(--radius); filter: grayscale(50%); opacity: 0.8; }
.data-overlay { position: absolute; bottom: 20px; left: 20px; background: rgba(10, 25, 47, 0.9); padding: 15px; border: 1px solid var(--color-teal); font-family: var(--font-mono); font-size: 0.8rem; color: var(--color-teal); }
.data-overlay span { display: block; margin-bottom: 5px; }

/* --- References --- */
.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.ref-card { background-color: var(--color-navy-light); padding: 30px; border-radius: var(--radius); border-top: 3px solid var(--color-teal); }
.company-logo { font-weight: 800; color: var(--color-white); font-size: 1.2rem; margin-bottom: 20px; letter-spacing: 1px; }
.ref-card p { font-style: italic; margin-bottom: 20px; color: #a8b2d1; }
.executive strong { display: block; color: var(--color-white); }
.executive span { font-size: 0.85rem; color: var(--color-teal); }

/* --- Contact & Banner --- */
.blue-banner { background-color: var(--color-navy-light); padding: 60px 0; border: 1px solid var(--color-teal); border-radius: var(--radius); text-align: center; margin-top: 50px; }
.banner-flex h3 { color: var(--color-white); font-size: 1.8rem; margin-bottom: 20px; }
.btn-white { background-color: var(--color-white); color: var(--color-navy); padding: 12px 30px; border-radius: var(--radius); font-weight: bold; }

.contact-interface { display: grid; grid-template-columns: 1fr 1.5fr; gap: 50px; }
.contact-info h2 { color: var(--color-white); font-size: 2rem; margin-bottom: 20px; }
.req-list { margin: 30px 0; background: var(--color-navy-light); padding: 20px; border-radius: var(--radius); }
.req-list h4 { color: var(--color-teal); margin-bottom: 10px; font-family: var(--font-mono); }
.req-list ul { list-style: square; padding-left: 20px; }
.support-line { font-family: var(--font-mono); font-size: 1.1rem; color: var(--color-white); }

.pro-form { background-color: var(--color-navy-light); padding: 40px; border-radius: var(--radius); }
.form-row { margin-bottom: 20px; }
.form-row label { display: block; margin-bottom: 5px; color: var(--color-teal); font-family: var(--font-mono); font-size: 0.85rem; }
.form-row input, .form-row select { width: 100%; padding: 12px; background-color: var(--color-navy); border: 1px solid #333; color: var(--color-white); border-radius: var(--radius); }
.form-row input:focus { border-color: var(--color-teal); outline: none; }
.btn-submit { width: 100%; background-color: var(--color-teal); color: var(--color-navy); padding: 15px; border: none; font-weight: bold; border-radius: var(--radius); cursor: pointer; transition: 0.3s; }
.btn-submit:hover { background-color: #fff; }

/* --- Legal --- */
.legal-doc { max-width: 800px; margin: 0 auto; background-color: var(--color-navy-light); padding: 50px; border-radius: var(--radius); }
.legal-doc h1 { color: var(--color-white); text-align: center; }
.legal-doc h3 { color: var(--color-teal); margin-top: 30px; margin-bottom: 10px; font-family: var(--font-mono); }

/* --- Footer --- */
.pro-footer { padding: 50px 0; border-top: 1px solid #333; margin-top: auto; text-align: center; font-size: 0.9rem; }
.f-brand { font-size: 1.5rem; font-weight: 800; color: var(--color-white); margin-bottom: 10px; }
.f-col a { color: var(--color-slate); margin: 0 10px; }
.f-col a:hover { color: var(--color-teal); }
.copyright { margin-top: 30px; font-family: var(--font-mono); opacity: 0.6; }

@media (max-width: 992px) {
    .corp-nav { display: none; }
    .mobile-toggle { display: block; }
    .hero-b2b { grid-template-columns: 1fr; text-align: center; }
    .hero-actions { justify-content: center; }
    .split-layout, .contact-interface, .ref-grid { grid-template-columns: 1fr; }
}