/* --- LOGO VE KURUMSAL KİMLİK RENK PALETİ --- */
:root {
    --primary: #FF3B00; 
    --primary-gradient: linear-gradient(135deg, #FF3B00 0%, #FF7700 100%);
    --primary-dark: #D63000;
    --primary-light: rgba(255, 59, 0, 0.08);
    
    --dark-slate: #181C20;
    --metallic-grey: #8A94A0;
    
    --bg-main: #FCFDFE;
    --bg-card: #FFFFFF;
    --bg-alt: #F8FAFC;
    
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    
    --border: #E2E8F0;
    --border-hover: #CBD5E1;
    
    --font-sans: 'Plus Jakarta Sans', -apple-system, sans-serif;
    --font-code: 'JetBrains Mono', monospace;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
    --shadow-md: 0 12px 24px -10px rgba(255, 59, 0, 0.15);
    --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.12);
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Grid Yapıları */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Tipografi */
h1, h2, h3, h4 { color: var(--text-primary); font-weight: 700; letter-spacing: -0.02em; }

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sub-title {
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: var(--primary);
    text-transform: uppercase;
    display: block;
    margin-bottom: 8px;
}
.sub-title.light { color: #FF7700; }

.section-header { margin-bottom: 55px; }
.section-header h2 { font-size: 2.25rem; }
.section-header p { color: var(--text-secondary); font-size: 1.1rem; margin-top: 10px; max-width: 600px; }
.text-center { text-align: center; }
.text-center p { margin-left: auto; margin-right: auto; }

/* Butonlar */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(255, 59, 0, 0.3);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #E03400 0%, #E66B00 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 59, 0, 0.45);
}
.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-hover);
}
.btn-outline:hover {
    background-color: var(--bg-alt);
    border-color: var(--text-primary);
}

.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: var(--radius-md); }
.btn-block { width: 100%; justify-content: center; }

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: rgba(252, 253, 254, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo { display: flex; align-items: center; text-decoration: none; }
.logo-img { height: 42px; width: auto; object-fit: contain; display: block; }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-item {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}
.nav-item:hover, .nav-item.active { color: var(--primary); }
.btn-nav { padding: 9px 18px; font-size: 0.9rem; }

.mobile-toggle { display: none; background: none; border: none; font-size: 1.4rem; color: var(--text-primary); cursor: pointer; }

/* Hero Section */
.hero-section {
    padding: 160px 0 90px;
    background: radial-gradient(circle at 85% 20%, rgba(255, 59, 0, 0.05) 0%, transparent 45%);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}
.badge-dot { width: 8px; height: 8px; background: var(--primary); border-radius: 50%; display: inline-block; }

.hero-text h1 { font-size: 3.25rem; line-height: 1.15; margin-bottom: 20px; }
.hero-subtext { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 32px; max-width: 520px; }

.hero-cta { display: flex; gap: 16px; margin-bottom: 45px; }

.hero-stats {
    display: flex;
    align-items: center;
    gap: 25px;
    padding-top: 25px;
    border-top: 1px solid var(--border);
}
.stat-num { font-size: 1.6rem; font-weight: 800; color: var(--text-primary); display: block; }
.stat-label { font-size: 0.85rem; color: var(--text-secondary); }
.stat-divider { width: 1px; height: 35px; background: var(--border); }

/* Kod Editörü */
.window-card {
    background: var(--dark-slate);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid #2A3036;
}

.window-bar {
    background: #21262C;
    padding: 12px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.window-buttons { display: flex; gap: 8px; }
.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dot.close { background: #FF5F56; }
.dot.minimize { background: #FFBD2E; }
.dot.expand { background: #27C93F; }

.window-title { color: var(--metallic-grey); font-family: var(--font-code); font-size: 0.8rem; }
.window-code { padding: 24px; font-family: var(--font-code); font-size: 0.9rem; color: #F8FAFC; line-height: 1.7; overflow-x: auto; }

.c-keyword { color: #FF7700; }
.c-string { color: #34D399; }
.c-boolean { color: #FF3B00; }
.c-comment { color: #64748B; font-style: italic; }

.window-footer {
    background: #21262C;
    padding: 10px 18px;
    font-size: 0.8rem;
    color: #34D399;
    border-top: 1px solid #2A3036;
}

/* Kart Yapıları */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-hover); }

/* Hakkımızda */
.about-section { padding: 100px 0; }
.about-card .card-icon {
    width: 50px; height: 50px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem; margin-bottom: 20px;
}
.about-card h3 { margin-bottom: 10px; font-size: 1.2rem; }
.about-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* Hizmetlerimiz */
.services-section { padding: 100px 0; background-color: var(--bg-alt); }
.service-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    position: relative;
    transition: var(--transition);
}
.service-box.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}
.featured-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--primary-gradient);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
}
.box-icon {
    width: 56px; height: 56px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; margin-bottom: 24px;
}
.service-box h3 { font-size: 1.3rem; margin-bottom: 12px; }
.service-box p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 24px; }
.box-list { list-style: none; border-top: 1px solid var(--border); padding-top: 20px; }
.box-list li { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 8px; }
.box-list li i { color: var(--primary); font-size: 0.8rem; }

/* Workflow */
.workflow-section { padding: 100px 0; }
.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 30px 24px;
    position: relative;
}
.step-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.3;
    margin-bottom: 10px;
}
.step-card h4 { font-size: 1.1rem; margin-bottom: 8px; }
.step-card p { font-size: 0.9rem; color: var(--text-secondary); }

/* Projeler */
.projects-section { padding: 100px 0; background: var(--bg-alt); }
.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 36px;
    transition: var(--transition);
}
.project-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.project-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.project-type { font-size: 0.8rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.05em; }
.project-icon { font-size: 1.2rem; color: var(--text-muted); }
.project-card h3 { font-size: 1.35rem; margin-bottom: 12px; }
.project-card p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 24px; }
.project-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.project-tags span {
    background: var(--bg-alt);
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 500;
}

/* İletişim */
.contact-section { padding: 100px 0; }
.contact-box {
    background: var(--dark-slate);
    border-radius: var(--radius-lg);
    padding: 60px;
    color: #ffffff;
}
.contact-text h2 { color: #ffffff; font-size: 2.2rem; margin-bottom: 16px; }
.contact-text p { color: var(--metallic-grey); font-size: 1.05rem; margin-bottom: 40px; }

.contact-details { display: flex; flex-direction: column; gap: 20px; }
.c-info-item { display: flex; align-items: center; gap: 16px; }
.c-info-item i {
    width: 44px; height: 44px;
    background: rgba(255, 59, 0, 0.15);
    color: #FF7700;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
}
.c-info-item strong { display: block; font-size: 0.85rem; color: var(--metallic-grey); }
.c-info-item span { font-size: 1rem; color: #ffffff; }

.contact-form-container {
    background: #ffffff;
    border-radius: var(--radius-md);
    padding: 36px;
    color: var(--text-primary);
}

.form-alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.success-alert { background: #ECFDF5; color: #059669; border: 1px solid #A7F3D0; }
.error-alert { background: #FEF2F2; color: #DC2626; border: 1px solid #FECACA; }
.field-error { font-size: 0.8rem; color: #DC2626; margin-top: 4px; display: block; }

.main-form .form-group { margin-bottom: 18px; }
.main-form label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }
.main-form input, .main-form select, .main-form textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
    background: #F8FAFC;
}
.main-form input:focus, .main-form select:focus, .main-form textarea:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* Footer */
.footer { padding: 40px 0; border-top: 1px solid var(--border); background: var(--bg-main); }
.footer-content { display: flex; justify-content: space-between; align-items: center; }
.footer-left p { font-size: 0.85rem; color: var(--text-secondary); margin-top: 10px; }
.footer-right { text-align: right; }
.footer-right p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 4px; }
.domain-badge { font-size: 0.85rem; color: var(--primary); text-decoration: none; font-weight: 700; }

/* Responsive Düzen */
@media (max-width: 992px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 30px; }
    .contact-box { padding: 36px; }
    .hero-text h1 { font-size: 2.5rem; }
    
    .mobile-toggle { display: block; }
    .nav-links {
        display: none;
        position: absolute;
        top: 80px; left: 0; width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }
    .nav-links.show { display: flex; }
}