/* --- CSS DEĞİŞKENLERİ --- */
 :root {
     --primary-color: #2563eb;
     --primary-hover: #1d4ed8;
     --secondary-color: #e0f2fe;
     --text-dark: #0f172a;
     --text-light: #64748b;
     --bg-white: #ffffff;
     --bg-light: #f8fafc;
     --transition: all 0.3s ease;
 }

 /* --- GENEL AYARLAR --- */
 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
     font-family: 'Inter', sans-serif;
 }

 html {
     scroll-behavior: smooth;
 }

 body {
     background-color: var(--bg-white);
     color: var(--text-dark);
     line-height: 1.6;
     overflow-x: hidden;
 }

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

 ul {
     list-style: none;
 }

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

 /* --- BUTONLAR --- */
 .btn {
     display: inline-block;
     padding: 12px 28px;
     border-radius: 8px;
     font-weight: 500;
     cursor: pointer;
     transition: var(--transition);
     border: none;
     font-size: 1rem;
 }

 .btn-primary {
     background-color: var(--primary-color);
     color: white;
     box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
 }

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

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

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

 /* --- HEADER & NAVBAR --- */
 header {
     position: fixed;
     top: 0;
     left: 0;
     width: 100%;
     background-color: rgba(255, 255, 255, 0.95);
     backdrop-filter: blur(10px);
     z-index: 1000;
     box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
     padding: 15px 0;
     transition: var(--transition);
 }

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

 .logo img {
     height: 40px;
     object-fit: contain;
 }

 .nav-links {
     display: flex;
     gap: 25px;
     align-items: center;
 }

 .nav-links a {
     font-weight: 500;
     color: var(--text-dark);
     transition: var(--transition);
     font-size: 0.95rem;
 }

 .nav-links a:hover {
     color: var(--primary-color);
 }

 .menu-toggle {
     display: none;
     font-size: 24px;
     cursor: pointer;
     color: var(--text-dark);
 }

 /* --- HERO SECTION --- */
 .hero {
     padding: 160px 0 100px;
     background: linear-gradient(135deg, var(--bg-light) 0%, var(--secondary-color) 100%);
     text-align: center;
 }

 .hero h1 {
     font-size: 3.5rem;
     font-weight: 700;
     margin-bottom: 20px;
     color: var(--text-dark);
     line-height: 1.2;
 }

 .hero h1 span {
     color: var(--primary-color);
 }

 .hero p {
     font-size: 1.2rem;
     color: var(--text-light);
     max-width: 700px;
     margin: 0 auto 40px;
 }

 .hero-buttons {
     display: flex;
     gap: 20px;
     justify-content: center;
 }

 /* --- ORTAK BAŞLIKLAR --- */
 .section-title {
     text-align: center;
     font-size: 2.5rem;
     margin-bottom: 15px;
     font-weight: 700;
 }

 .section-subtitle {
     text-align: center;
     color: var(--text-light);
     margin-bottom: 60px;
     font-size: 1.1rem;
 }

 /* --- NASIL ÇALIŞIR --- */
 .steps {
     padding: 100px 0;
     background-color: var(--bg-white);
 }

 .steps-grid {
     display: grid;
     grid-template-columns: repeat(3, 1fr);
     gap: 40px;
 }

 .step-card {
     text-align: center;
     padding: 40px 30px;
     background: var(--bg-light);
     border-radius: 16px;
     transition: var(--transition);
     border: 1px solid rgba(0, 0, 0, 0.03);
 }

 .step-card:hover {
     transform: translateY(-10px);
     box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
     background: white;
 }

 .step-icon {
     width: 80px;
     height: 80px;
     background-color: var(--secondary-color);
     color: var(--primary-color);
     border-radius: 50%;
     display: flex;
     justify-content: center;
     align-items: center;
     font-size: 30px;
     margin: 0 auto 20px;
     font-weight: 700;
 }

 .step-card h3 {
     font-size: 1.3rem;
     margin-bottom: 15px;
 }

 .step-card p {
     color: var(--text-light);
     font-size: 0.95rem;
 }

 /* --- ÖZELLİKLER --- */
 .features {
     padding: 100px 0;
     background-color: var(--bg-light);
 }

 .features-grid {
     display: grid;
     grid-template-columns: repeat(2, 1fr);
     gap: 40px;
     align-items: center;
 }

 .feature-item {
     background: white;
     padding: 30px;
     border-radius: 12px;
     box-shadow: 0 5px 20px rgba(0, 0, 0, 0.03);
     margin-bottom: 20px;
     border-left: 4px solid var(--primary-color);
     transition: var(--transition);
 }

 .feature-item:hover {
     transform: translateX(10px);
 }

 .feature-item h4 {
     font-size: 1.2rem;
     margin-bottom: 10px;
     color: var(--text-dark);
 }

 .feature-item p {
     color: var(--text-light);
     font-size: 0.95rem;
 }

 .feature-img {
     width: 100%;
     background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
     border-radius: 20px;
     display: flex;
     align-items: center;
     justify-content: center;
     padding: 30px;
     box-shadow: 0 20px 40px rgba(37, 99, 235, 0.2);
     box-sizing: border-box;
 }

 .feature-img img {
     max-width: 100%;
     height: auto;
     border-radius: 12px;
     box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
     display: block;
 }

 /* --- STAND MODELLERİ (YENİ BÖLÜM) --- */
 .stands {
     padding: 100px 0;
     background-color: var(--bg-white);
 }

 .stands-grid {
     display: grid;
     grid-template-columns: repeat(3, 1fr);
     gap: 30px;
 }

 .stand-card {
     background: var(--bg-light);
     border-radius: 16px;
     overflow: hidden;
     transition: var(--transition);
     border: 1px solid rgba(0, 0, 0, 0.04);
     box-shadow: 0 5px 15px rgba(0, 0, 0, 0.02);
 }

 .stand-card:hover {
     transform: translateY(-10px);
     box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
 }

 .stand-card img {
     width: 100%;
     height: 250px;
     object-fit: cover;
     display: block;
     border-bottom: 1px solid rgba(0, 0, 0, 0.05);
 }

 .stand-info {
     padding: 25px;
     text-align: center;
 }

 .stand-info h4 {
     font-size: 1.25rem;
     color: var(--text-dark);
     margin-bottom: 10px;
 }

 .stand-info p {
     color: var(--text-light);
     font-size: 0.95rem;
 }

 /* --- FORMLAR GENEL --- */
 .form-group {
     margin-bottom: 20px;
 }

 .form-group label {
     display: block;
     margin-bottom: 8px;
     font-weight: 500;
     color: var(--text-dark);
 }

 .form-control {
     width: 100%;
     padding: 15px;
     border: 1px solid #cbd5e1;
     border-radius: 8px;
     font-size: 1rem;
     transition: var(--transition);
     font-family: inherit;
 }

 .form-control:focus {
     outline: none;
     border-color: var(--primary-color);
     box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
 }

 /* --- TEKLİF AL FORMU --- */
 .quote-section {
     padding: 100px 0;
     background-color: var(--bg-light);
 }

 .quote-container {
     max-width: 700px;
     margin: 0 auto;
     background: var(--bg-white);
     padding: 50px;
     border-radius: 20px;
     box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
 }

 textarea.form-control {
     resize: vertical;
     height: 120px;
 }

 /* --- FOOTER --- */
 footer {
     background-color: var(--text-dark);
     color: white;
     padding: 60px 0 20px;
 }

 .footer-grid {
     display: grid;
     grid-template-columns: repeat(3, 1fr);
     gap: 40px;
     margin-bottom: 40px;
 }

 .footer-col h3 {
     font-size: 1.5rem;
     margin-bottom: 20px;
 }

 .footer-col h4 {
     font-size: 1.1rem;
     margin-bottom: 20px;
     color: var(--primary-color);
 }

 .footer-col p,
 .footer-col a {
     color: #94a3b8;
     margin-bottom: 10px;
     display: block;
     transition: var(--transition);
 }

 .footer-col a:hover {
     color: white;
 }

 .footer-bottom {
     text-align: center;
     padding-top: 20px;
     border-top: 1px solid #334155;
     color: #94a3b8;
     font-size: 0.9rem;
 }

 /* --- GİRİŞ YAP MODAL --- */
 .modal-overlay {
     position: fixed;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
     background: rgba(0, 0, 0, 0.5);
     backdrop-filter: blur(5px);
     display: flex;
     align-items: center;
     justify-content: center;
     z-index: 2000;
     opacity: 0;
     visibility: hidden;
     transition: var(--transition);
 }

 .modal-overlay.active {
     opacity: 1;
     visibility: visible;
 }

 .modal-box {
     background: white;
     padding: 40px;
     border-radius: 16px;
     width: 100%;
     max-width: 400px;
     transform: translateY(-20px);
     transition: var(--transition);
     box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
     position: relative;
 }

 .modal-overlay.active .modal-box {
     transform: translateY(0);
 }

 .close-modal {
     position: absolute;
     top: 20px;
     right: 20px;
     font-size: 24px;
     cursor: pointer;
     color: var(--text-light);
     background: none;
     border: none;
     padding: 5px;
 }

 .modal-box h2 {
     margin-bottom: 10px;
     color: var(--text-dark);
 }

 .modal-box p {
     color: var(--text-light);
     margin-bottom: 25px;
     font-size: 0.9rem;
 }

 .password-wrapper {
     position: relative;
     display: flex;
     align-items: center;
 }

 .password-wrapper input {
     padding-right: 45px;
 }

 .toggle-password {
     position: absolute;
     right: 15px;
     background: none;
     border: none;
     cursor: pointer;
     color: var(--text-light);
     display: flex;
     align-items: center;
     justify-content: center;
 }

 .toggle-password:hover {
     color: var(--primary-color);
 }

 .remember-flex {
     display: flex;
     justify-content: space-between;
     align-items: center;
     margin-bottom: 25px;
     font-size: 0.9rem;
 }

 .remember-flex label {
     margin-bottom: 0;
     display: flex;
     align-items: center;
     gap: 8px;
     font-weight: 400;
     cursor: pointer;
 }

 .forgot-pass {
     color: var(--primary-color);
     text-decoration: underline;
 }

 /* --- ANİMASYONLAR (SCROLL REVEAL) --- */
 .reveal {
     opacity: 0;
     transform: translateY(40px);
     transition: all 0.8s ease;
 }

 .reveal.active {
     opacity: 1;
     transform: translateY(0);
 }

 /* --- RESPONSİVE AYARLAR --- */
 @media (max-width: 992px) {
     .hero h1 {
         font-size: 2.8rem;
     }

     .steps-grid,
     .features-grid,
     .footer-grid,
     .stands-grid {
         grid-template-columns: 1fr;
     }

     .feature-img {
         margin-top: 30px;
     }
 }

 @media (max-width: 768px) {
     .nav-links {
         position: fixed;
         top: 70px;
         left: -100%;
         width: 100%;
         height: calc(100vh - 70px);
         background: white;
         flex-direction: column;
         padding-top: 40px;
         transition: var(--transition);
     }

     .nav-links.active {
         left: 0;
     }

     .menu-toggle {
         display: block;
     }

     .hero h1 {
         font-size: 2.2rem;
     }

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

     .quote-container {
         padding: 30px 20px;
     }

     .stand-card img {
         height: 200px;
     }
 }