/* =============================================
   MODERN TEMA – Responsive, Sade, Profesyonel
   ============================================= */

:root {
    --primary: #0f3b5c;      /* Ana renk (koyu mavi) */
    --primary-dark: #0a2c44;
    --secondary: #e67e22;    /* Vurgu rengi (turuncu) */
    --secondary-dark: #c96f1c;
    --light: #f8fafc;
    --dark: #1e293b;
    --gray: #4a5568;
    --white: #ffffff;
    --shadow: 0 10px 25px rgba(0,0,0,0.05);
    --shadow-hover: 0 20px 35px rgba(0,0,0,0.1);
    --radius: 20px;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ========== HEADER ========== */
.site-header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0.75rem 0;
}

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

.logo img {
    height: 50px;
    width: auto;
}

.logo span {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: 0.2s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--secondary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.2s;
    cursor: pointer;
    border: none;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--secondary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--secondary);
    color: var(--white);
}

/* ========== HERO SECTION ========== */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 1.5rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== PAGE HEADER (alt sayfalar) ========== */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/* ========== SECTION TITLES ========== */
.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--primary);
    position: relative;
    padding-bottom: 0.75rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--secondary);
    border-radius: 3px;
}

/* ========== CARDS (hizmetler, makaleler, vs.) ========== */
.services-section,
.articles-section,
.events-section {
    padding: 4rem 0;
}

.services-grid,
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card,
.article-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: 0.3s;
}

.service-card:hover,
.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

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

.service-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.service-card-icon {
    padding: 1.5rem 1.5rem 0;
    text-align: center;
}

.service-card-icon i {
    font-size: 2.5rem;
    color: var(--secondary);
}

.service-card-content,
.article-card-content {
    padding: 1.5rem;
}

.service-card-content h3,
.article-card-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--primary);
}

.service-card-content p,
.article-card-content p {
    color: var(--gray);
    margin-bottom: 1rem;
}

.read-more {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.read-more:hover {
    gap: 0.75rem;
}

/* ========== FORMS ========== */
.form-section {
    padding: 4rem 0;
}

.form-container {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(230,126,34,0.1);
}

/* ========== FOOTER ========== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.8);
    padding: 3rem 0 1.5rem;
    margin-top: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: 0.2s;
}

.footer-col ul li a:hover {
    color: var(--secondary);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--white);
    transition: 0.2s;
}

.social-links a:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.8rem;
}

/* ========== WHATSAPP FLOAT ========== */
.whatsapp-float {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background: #25d366;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 99;
}

.whatsapp-float a {
    font-size: 1.8rem;
    color: white;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        background: var(--white);
        padding: 1rem;
        gap: 1rem;
        text-align: center;
        box-shadow: var(--shadow);
    }

    .nav-menu.show {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero {
        padding: 3rem 0;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.3rem;
    }
    .btn-sm {
        display: none;
    }
}