:root {
    --primary-color: #C53678;
    --primary-light: #FDEFF4;
    --primary-dark: #A02B61;
    --text-color: #2D3436;
    --light-text: #636E72;
    --bg-white: #FFFFFF;
    --bg-light: #F9F9F9;
    --transition: all 0.3s ease;
}

.bg-light {
    background-color: var(--bg-light);
}

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

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.text-center {
    text-align: center;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Navigation */
#main-nav {
    background: var(--bg-white);
    height: 80px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo img {
    height: 60px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    margin-left: 1.2rem; /* Geniş boşluk azaltıldı */
    transition: var(--transition);
    white-space: nowrap; /* Yazıların kırılmasını önler */
    font-size: 0.95rem; /* Bir tık küçültüldü */
}

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

.btn-donate {
    background: var(--primary-color);
    color: #fff !important;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    margin-left: 2rem;
    white-space: nowrap; /* Metnin kırılmasını önler */
    display: inline-block;
}

.btn-donate:hover {
    background: var(--primary-dark);
    color: #fff !important;
}

/* Hero üzerindeki ikincil butonun hover durumunda yazısının kaybolmaması için */
.hero .btn-secondary:hover {
    background: #fff;
    color: var(--primary-color) !important;
}

/* Mobile Adjustments for Nav */
@media (max-width: 768px) {
    .nav-links li a {
        margin-left: 0 !important;
        display: block;
        padding: 10px 0;
    }
    
    .btn-donate {
        margin: 1.5rem auto 0 auto !important; /* Ortalamak için */
        width: 100%;
        max-width: 250px;
        padding: 1rem 2rem;
        display: block;
        text-align: center;
        border-radius: 50px;
    }
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('assets/hero_bg.png') no-repeat center center/cover;
    display: flex;
    align-items: center;
    color: #fff;
    margin-top: 80px;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: transparent;
    border: 2px solid #fff;
    color: #fff;
    margin-left: 1rem;
}

.btn-secondary:hover {
    background: #fff;
    color: var(--primary-color);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    margin: 2px 0;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
        padding: 2rem 0;
    }

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

    .nav-links li {
        margin: 1rem 0;
    }

    .nav-links li a {
        margin-left: 0;
    }

    .btn-donate {
        margin-left: 0;
    }
}

/* Sections */
section {
    padding: 6rem 0;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
}

.text-center h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.lead {
    font-size: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
    color: var(--light-text);
}

/* About Section */
.about-img img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 20px 20px 0 var(--primary-color);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.project-card {
    background: var(--bg-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-img img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    margin-bottom: 1rem;
}

/* Contact Section */
.contact-list {
    list-style: none;
    margin-top: 2rem;
}

.contact-list li {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.volunteer-options {
    margin-bottom: 1.5rem;
    text-align: left;
}

.volunteer-options p {
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-color);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.checkbox-group label {
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.volunteer-form-container {
    max-width: 800px;
    margin: 3rem auto 0;
    background: #fff;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.05);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem; /* Aradaki boşluk azaltıldı */
}

@media (max-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    .volunteer-form-container {
        padding: 1.5rem;
    }
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 1.2rem; /* Bir tık genişletildi */
    border: 1px solid #ddd;
    border-radius: 5px;
    outline: none;
    font-size: 1.1rem; /* Yazılar büyütüldü */
    font-family: inherit;
}

.form-group input::placeholder, .form-group textarea::placeholder {
    font-size: 1rem;
    color: #999;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary-color);
}

.contact-list li a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
}

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

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 1100;
    transition: var(--transition);
    animation: whatsapp-pulse 2s infinite;
}

@keyframes whatsapp-pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        transform: scale(1.1);
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #128c7e;
    animation: none; /* Hover'da pulsasyon dursun ki tıklamak kolay olsun */
}

.whatsapp-float svg {
    width: 35px;
    height: 35px;
}

/* Footer */
footer {
    padding: 4rem 0 2rem 0;
    background: var(--text-color);
    color: #fff;
}

.footer-logo {
    margin-bottom: 2rem;
}

.footer-logo img {
    max-width: 300px;
    height: auto;
    filter: brightness(0) invert(1); /* Logoyu beyaz yapmak için (eğer renkli logoysa ve koyu footer'da görünmesini istiyorsa) */
}

/* Animations */
.hero-content, .about-text, .about-img, .project-card, .contact-info, .contact-form {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.show {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Vision Signature Logo */
.vision-signature {
    display: block;
    margin: 2rem 0 0 auto; /* Sağa Yasla */
    width: 280px; /* Daha Büyük */
    height: 120px; /* Sabit yükseklik */
    object-fit: cover;
    object-position: -20px center; /* Sadece soldaki "Maki" kısmını göstermek için kaydırma */
    opacity: 0.9;
}