/* =================================
   Global Styles & Variables
   ================================= */

:root {
    /* Color Palette */
    --primary-color: #2BC4A6;
    --secondary-color: #243B55;
    --light-bg: #F5F7FA;
    --white: #FFFFFF;
    --text-dark: #2D3748;
    --text-muted: #718096;
    --hover-color: #23A58A;
    --border-color: #E2E8F0;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --section-spacing: 4rem;
    --card-spacing: 2rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    /* Metin seçimini engelle */
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
}

a {
    text-decoration: none;
    transition: all 0.3s ease;
}

section {
    padding: var(--section-spacing) 0;
}

/* =================================
   Header & Navigation
   ================================= */

.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand .logo-placeholder {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--secondary-color);
}

.navbar-brand .logo-placeholder i {
    font-size: 2rem;
    color: var(--primary-color);
}

.navbar-nav .nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-color);
    background-color: rgba(43, 196, 166, 0.1);
}

.search-input {
    border: 2px solid var(--border-color);
    border-right: none;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: none;
}

.btn-search {
    background-color: var(--primary-color);
    color: var(--white);
    border: 2px solid var(--primary-color);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.btn-search:hover {
    background-color: var(--hover-color);
    border-color: var(--hover-color);
}

/* WhatsApp Button */
.btn-whatsapp {
    background-color: #25D366;
    color: var(--white);
    border: 2px solid #25D366;
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.btn-whatsapp i {
    font-size: 1.2rem;
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    border-color: #128C7E;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

@media (max-width: 991px) {
    .btn-whatsapp {
        margin-top: 1rem;
        width: 100%;
        justify-content: center;
    }
}

/* =================================
   Membership Section
   ================================= */

.membership-section {
    background: linear-gradient(135deg, #F5F7FA 0%, #E9ECEF 100%);
    padding: var(--section-spacing) 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.membership-info h1 {
    color: var(--secondary-color);
}

.membership-info .lead {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.benefits-list {
    list-style: none;
    padding: 0;
}

.benefits-list li {
    padding: 0.75rem 0;
    font-size: 1.05rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
}

.benefits-list li i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-right: 1rem;
}

.membership-form-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.membership-form-card h3 {
    color: var(--secondary-color);
    font-weight: 600;
}

.form-label {
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-control,
.form-select {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    transition: all 0.3s ease;
    /* Form alanlarında metin seçimine izin ver */
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(43, 196, 166, 0.15);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* =================================
   Buttons
   ================================= */

.btn {
    font-family: var(--font-heading);
    font-weight: 500;
    border-radius: var(--radius-sm);
    padding: 0.75rem 2rem;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

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

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

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

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* =================================
   Products Section
   ================================= */

.products-section {
    background-color: var(--white);
    padding: var(--section-spacing) 0;
}

.section-header h2 {
    color: var(--secondary-color);
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.badge-popular {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-heading);
}

.product-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.product-description {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    flex-grow: 1;
    font-size: 0.95rem;
}

/* =================================
   About Section
   ================================= */

.about-section {
    background-color: var(--light-bg);
    padding: var(--section-spacing) 0;
}

.about-image img {
    border-radius: var(--radius-lg);
}

.about-content h2 {
    color: var(--secondary-color);
}

.about-content .lead {
    color: var(--text-dark);
}

.about-content p {
    color: var(--text-muted);
}

.feature-box {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-box i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
}

.feature-box h5 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-box p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

/* =================================
   Certifications Section
   ================================= */

.certifications-section {
    background-color: var(--white);
    padding: var(--section-spacing) 0;
}

.certification-card {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    border: 2px solid transparent;
}

.certification-card:hover {
    background: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.cert-icon {
    margin-bottom: 1.5rem;
}

.cert-icon i {
    font-size: 3.5rem;
    color: var(--primary-color);
}

.certification-card h5 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.certification-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
}

/* =================================
   Footer
   ================================= */

.footer {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--white);
}

.footer-logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

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

.footer-title {
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 0.5rem;
}

.footer-contact {
    list-style: none;
    padding: 0;
}

.footer-contact li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.footer-contact i {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-right: 0.75rem;
}

.footer-contact span {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

.footer-divider {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 2rem 0 1.5rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* =================================
   Responsive Design
   ================================= */

@media (max-width: 991px) {
    :root {
        --section-spacing: 3rem;
    }

    .navbar-nav {
        padding: 1rem 0;
    }

    .navbar-nav .nav-link {
        margin: 0.25rem 0;
    }

    .search-input {
        margin-top: 1rem;
    }

    .membership-section {
        min-height: auto;
    }

    .membership-form-card {
        padding: 1.5rem;
    }
}

@media (max-width: 767px) {
    :root {
        --section-spacing: 2rem;
    }

    .display-4 {
        font-size: 2rem;
    }

    .display-5 {
        font-size: 1.75rem;
    }

    .lead {
        font-size: 1rem;
    }

    .product-image {
        height: 200px;
    }

    .btn-lg {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }

    .feature-box {
        margin-bottom: 1rem;
    }
}

/* =================================
   Animations
   ================================= */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card,
.certification-card,
.feature-box {
    animation: fadeInUp 0.6s ease;
}

/* Scroll behavior */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--hover-color);
}