/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #2563eb;
    --primary-green: #10b981;
    --dark-blue: #1e40af;
    --dark-green: #059669;
    --light-blue: #dbeafe;
    --light-green: #d1fae5;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    transition: opacity 0.3s;
}

.logo a:hover h1 {
    opacity: 0.8;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

.nav a:hover {
    opacity: 0.8;
}

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

.phone-link {
    color: var(--white);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--light-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-submit {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.btn-submit:hover {
    background: var(--dark-blue);
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -5px rgba(37, 99, 235, 0.4);
}

.btn-customer-service {
    background: var(--primary-green);
    color: var(--white);
    border: 2px solid var(--white);
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-customer-service:hover {
    background: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--white);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-whatsapp {
    background: #25d366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Hero Section */
.hero {
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-green) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.hero-text h2 {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.stars {
    color: #fbbf24;
}

.price {
    margin-bottom: 1.5rem;
}

.old-price {
    font-size: 1.5rem;
    color: var(--text-light);
    text-decoration: line-through;
    margin-right: 1rem;
}

.new-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-right: 1rem;
}

.kdv {
    color: var(--text-light);
    font-size: 0.9rem;
}

.description {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dark);
}

.feature-item i {
    color: var(--primary-green);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Product Gallery */
.product-gallery {
    background: var(--white);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
}

.main-image {
    width: 100%;
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
}

.main-image img {
    width: 100%;
    height: auto;
    display: block;
}

.thumbnail-gallery {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 0.5rem;
}

.thumbnail {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s;
}

.thumbnail:hover {
    border-color: var(--primary-blue);
    transform: scale(1.05);
}

.thumbnail.active {
    border-color: var(--primary-green);
}

.product-info {
    margin-top: 1rem;
    text-align: center;
    color: var(--text-light);
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

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

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 2px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Specs Section */
.specs {
    padding: 4rem 0;
    background: var(--bg-light);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.spec-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    position: relative;
    transition: all 0.3s;
}

.spec-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.spec-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.spec-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.spec-label {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.spec-value {
    color: var(--text-dark);
    line-height: 1.6;
}

.package-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: 0 auto;
}

.package-content h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.package-content ul {
    list-style: none;
    margin-bottom: 1rem;
}

.package-content ul li {
    padding: 0.5rem 0;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.package-content ul li i {
    color: var(--primary-green);
}

.note {
    color: var(--text-light);
    font-size: 0.9rem;
    font-style: italic;
}

/* Reviews Section */
.reviews {
    padding: 4rem 0;
    background: var(--white);
}

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

.review-card {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-green);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.verified {
    background: var(--primary-green);
    color: var(--white);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
}

.review-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.review-stars {
    color: #fbbf24;
    margin-bottom: 0.5rem;
}

.review-text {
    color: var(--text-dark);
    line-height: 1.7;
}

/* FAQ Section */
.faq {
    padding: 4rem 0;
    background: var(--bg-light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    margin-bottom: 1rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-dark);
    transition: all 0.3s;
}

.faq-question:hover {
    background: var(--light-blue);
}

.faq-question i {
    color: var(--primary-blue);
    transition: transform 0.3s;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* Order Form */
.order-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-green) 100%);
}

.order-form {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s;
}

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

/* Simcard Checkbox Styling */
.simcard-checkbox {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem;
    background: var(--light-green);
    border: 3px solid var(--primary-green);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
    font-size: 1.2rem;
    margin: 1rem 0;
}

.simcard-checkbox:hover {
    background: #b8f5d3;
    border-color: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.simcard-checkbox input[type="checkbox"] {
    width: 28px;
    height: 28px;
    cursor: pointer;
    accent-color: var(--primary-green);
    margin: 0;
    flex-shrink: 0;
    border: 2px solid var(--primary-green);
}

.simcard-checkbox input[type="checkbox"]:checked {
    accent-color: var(--primary-green);
}

.checkbox-label {
    color: var(--text-dark);
    font-weight: 700;
    user-select: none;
    font-size: 1.2rem;
}

.simcard-checkbox.checked {
    background: var(--primary-green);
    border-color: var(--dark-green);
}

.simcard-checkbox.checked .checkbox-label {
    color: var(--white);
}

.simcard-checkbox input[type="checkbox"]:checked {
    background-color: var(--white);
    border-color: var(--white);
}

.form-total {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.total-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    color: var(--text-dark);
}

.total-item.total {
    border-top: 2px solid var(--border-color);
    padding-top: 1rem;
    margin-top: 0.5rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-green);
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    display: none;
}

.form-message.success {
    background: var(--light-green);
    color: var(--dark-green);
    display: block;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
    display: block;
}

/* Contact Section */
.contact {
    padding: 4rem 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.contact-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.contact-item h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: var(--text-light);
}

.contact-item a {
    color: var(--primary-blue);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--dark-green) 100%);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.3s;
}

.footer-section a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-bottom p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.legal-notice {
    font-size: 0.85rem;
    opacity: 0.7;
    line-height: 1.6;
    max-width: 800px;
    margin: 1rem auto 0;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
    }

    .nav {
        display: none;
    }

    .header-actions {
        width: 100%;
        justify-content: space-between;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .thumbnail-gallery {
        grid-template-columns: repeat(4, 1fr);
    }

    .hero-text h2 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .cta-buttons {
        flex-direction: column;
    }

    .btn-large {
        width: 100%;
        text-align: center;
    }
}