/* 
* Emine Yüksel Diyetisyen Web Sitesi
* Ana Stil Dosyası
* PRD dokümanında belirtilen renk paleti ve tasarım ilkelerine uygun olarak hazırlanmıştır
*/

/* ========== RESET ve TEMEL STILLER ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Ana Renkler - Aqua Blue Tonları */
    --primary: #00A9C0;        /* Aqua Blue */
    --primary-light: #4DC4D2;  /* Aqua Lagoon */
    --secondary: #42C2CA;      /* Beau Blue */
    --accent: #006A80;         /* Eau de Nil */
    --accent-light: #0078A0;   /* Florida Blue */
    
    /* Vurgu Renkleri */
    --highlight: #00B4C6;      /* Havasu Turquoise */
    --highlight-dark: #007B8C; /* Marine */
    --highlight-light: #1F78B4; /* Mediterranean */
    
    /* Nötr Renkler */
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --gray: #BDBDBD;
    --dark-gray: #4F4F4F;
    --black: #212121;
    
    /* Fonksiyonel Renkler */
    --success: #4CAF50;
    --error: #F44336;
    --warning: #FFC107;
    --info: #2196F3;
    
    /* Arka Plan ve Metin Renkleri */
    --background: var(--white);
    --text: var(--black);
    --text-light: var(--dark-gray);
    
    /* Ölçüler */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    --spacing-2xl: 40px;
    --spacing-3xl: 60px;
    
    /* Font Size */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    
    /* Border Radius */
    --border-radius: 4px;
    
    /* Box Shadow */
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    
    /* Transition */
    --transition: all 0.3s ease;
    
    /* Font Family */
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Playfair Display', serif;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-light);
}

ul {
    list-style-type: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-2xl);
    text-align: center;
    position: relative;
    color: var(--primary);
}

.section-title:after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--accent));
    margin: var(--spacing-md) auto 0;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-3px);
}

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

.btn-secondary:hover {
    background-color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-3px);
}

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

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

/* ========== HEADER ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    padding: var(--spacing-md) 0;
}

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

.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
}

.logo-text {
    font-family: 'Playfair Display', serif;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
}

.logo-tag {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    margin-top: -5px;
}

.main-nav {
    display: none;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-item a {
    color: var(--dark-gray);
    font-weight: 500;
}

.nav-item a:hover,
.nav-item.active a {
    color: var(--primary);
}

.mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--dark-gray);
    cursor: pointer;
}

.toggle-icon {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--dark-gray);
    position: relative;
    transition: var(--transition);
}

.toggle-icon:before,
.toggle-icon:after {
    content: "";
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--dark-gray);
    transition: var(--transition);
}

.toggle-icon:before {
    top: -8px;
}

.toggle-icon:after {
    bottom: -8px;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-md) 0;
}

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

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-nav-item a {
    display: block;
    padding: var(--spacing-sm) 0;
    color: var(--dark-gray);
    font-weight: 500;
}

.mobile-nav-item a:hover,
.mobile-nav-item.active a {
    color: var(--primary);
}

/* ========== HERO SECTION ========== */
.hero {
    background: linear-gradient(135deg, rgba(0, 169, 192, 0.05) 0%, rgba(0, 180, 198, 0.1) 100%);
    padding: calc(var(--spacing-3xl) * 2) 0 var(--spacing-3xl);
    margin-top: 60px;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.hero-description {
    font-size: var(--font-size-lg);
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

/* ========== ABOUT SECTION ========== */
.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.about-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.about-text {
    flex: 1;
}

.about-text h3 {
    margin-bottom: var(--spacing-md);
}

/* ========== SERVICES SECTION ========== */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.service-card {
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    padding: var(--spacing-xl);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

.service-title {
    margin-bottom: var(--spacing-sm);
}

/* ========== TESTIMONIALS SECTION ========== */
.testimonials {
    background: linear-gradient(135deg, rgba(139, 195, 74, 0.05) 0%, rgba(0, 188, 212, 0.05) 100%);
}

.testimonial-slider {
    display: flex;
    overflow-x: auto;
    gap: var(--spacing-xl);
    padding: var(--spacing-md) 0;
    scroll-snap-type: x mandatory;
}

.testimonial-card {
    flex: 0 0 100%;
    scroll-snap-align: start;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
}

.testimonial-content {
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    display: flex;
    align-items: center;
    margin-top: auto;
}

.testimonial-image {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: var(--spacing-md);
}

.testimonial-name {
    font-weight: 600;
}

.testimonial-stats {
    color: var(--primary);
    font-weight: 600;
}

/* ========== CTA SECTION ========== */
.cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.cta h2 {
    color: var(--white);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

.cta .btn-outline {
    border-color: var(--white);
    color: var(--white);
}

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

/* ========== FOOTER ========== */
.site-footer {
    background-color: var(--dark-gray);
    color: var(--light-gray);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-logo .logo-tag {
    color: var(--light-gray);
}

.footer-contact h3,
.footer-links h3,
.footer-social h3 {
    color: var(--white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.contact-list li,
.link-list li {
    margin-bottom: var(--spacing-sm);
}

.contact-list a,
.link-list a {
    color: var(--light-gray);
}

.contact-list a:hover,
.link-list a:hover {
    color: var(--primary-light);
}

.contact-list i {
    margin-right: var(--spacing-sm);
    color: var(--primary-light);
}

.social-list {
    display: flex;
    gap: var(--spacing-md);
}

.social-list a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========== FORM STYLES ========== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: inherit;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
}

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

/* ========== RESPONSIVE STYLES ========== */
@media (min-width: 576px) {
    .testimonial-card {
        flex: 0 0 calc(100% - 20px);
    }
}

@media (min-width: 768px) {
    .about-content {
        flex-direction: row;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonial-card {
        flex: 0 0 calc(50% - 20px);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .main-nav {
        display: block;
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .testimonial-card {
        flex: 0 0 calc(33.333% - 20px);
    }
    
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Stats Section */
.stats {
    background-color: var(--white);
    padding: var(--spacing-2xl) 0;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--highlight);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-md);
    color: var(--dark-gray);
}

/* Blog Styles */
.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.blog-card {
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-content {
    padding: var(--spacing-lg);
}

.blog-date {
    font-size: var(--font-size-sm);
    color: var(--accent);
    margin-bottom: var(--spacing-xs);
}

.blog-title {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.blog-excerpt {
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

@media (min-width: 768px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========== POPUP STYLES ========== */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.popup-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 500px;
    background: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    padding: 30px;
    z-index: 1001;
    text-align: center;
    opacity: 1;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.popup-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 10px;
}

.popup-close {
    background: transparent;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--primary);
    padding: 5px 10px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.popup-close:hover {
    background-color: rgba(76, 175, 80, 0.1);
    transform: scale(1.1);
}

.popup-icon {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 15px;
    animation: pulse 2s infinite;
}

.popup-title {
    color: var(--primary);
    margin-bottom: 15px;
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 24px;
}

.popup-message {
    font-size: 22px;
    margin-bottom: 20px;
    color: var(--accent);
    font-weight: 500;
}

.popup-signature {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    color: var(--primary-light);
    font-size: 18px;
    text-align: right;
    margin-top: 15px;
}

.fade-out {
    opacity: 0 !important;
    transform: translate(-50%, -40%);
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

@media (max-width: 576px) {
    .popup-container {
        width: 95%;
        padding: 20px;
    }
    
    .popup-title {
        font-size: 20px;
    }
    
    .popup-message {
        font-size: 18px;
    }
}