/* style.css - MODERN GLASSMORPHISM TASARIM (Apple Inspired) */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #0071e3; /* Apple mavisi */
    --primary-hover: #0077ed;
    --background-gradient: linear-gradient(145deg, #f5f5f7, #e0e0e0); /* Açık gri gradient */
    --card-bg: rgba(255, 255, 255, 0.6); /* Daha opak glass */
    --card-border: rgba(255, 255, 255, 0.8);
    --text-color: #1d1d1f; /* Apple koyu gri */
    --text-light: #6e6e73; /* Apple açık gri */
    --section-bg-light: #f5f5f7;
    --section-bg-dark: #1d1d1f;
    --white-color: #ffffff;
    --radius-l: 20px; /* Büyük yuvarlaklık */
    --radius-m: 12px; /* Orta yuvarlaklık */
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-button: 0 4px 10px rgba(0, 0, 0, 0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--background-gradient);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1080px; /* Biraz daha geniş */
    margin: 0 auto;
    padding: 0 20px;
}

/* Tipografi */
h1, h2, h3 { font-weight: 600; line-height: 1.3; }
h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); margin-bottom: 1rem; } /* Akıcı font boyutu */
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); text-align: center; margin-bottom: 4rem; }
p { font-size: clamp(1rem, 2.5vw, 1.15rem); color: var(--text-light); }

/* --- Navbar --- */
.navbar {
    background: rgba(255, 255, 255, 0.7); /* Hafif glass navbar */
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: sticky; top: 0; z-index: 1000;
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.6rem; font-weight: 700; text-decoration: none; color: var(--text-color); }
.navbar nav a {
    text-decoration: none; color: var(--text-color); margin-left: 30px;
    font-weight: 500; font-size: 0.95rem; transition: color 0.2s ease;
}
.navbar nav a:hover { color: var(--primary-color); }
.navbar nav a.cta-button { margin-left: 35px; padding: 8px 20px; font-size: 0.9rem;} /* Navbar butonu daha küçük */

/* --- Ana Buton Stilleri (Subtle 3D) --- */
.cta-button {
    text-decoration: none; color: var(--white-color); border-radius: var(--radius-m);
    padding: 14px 32px; font-weight: 500; font-size: 1rem;
    display: inline-flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-button);
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
    border: none; /* Kenarlık yok */
    cursor: pointer;
}
.cta-button.primary { background-color: var(--primary-color); }
.cta-button.primary:hover { background-color: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 15px rgba(0, 113, 227, 0.3); }
.cta-button.large { padding: 18px 40px; font-size: 1.1rem; border-radius: 16px; }

.amazon-logo { height: 22px; margin-right: 10px; filter: brightness(0) invert(1); /* Beyaz yapmak için */ }

/* --- Hero Bölümü --- */
.hero {
    /* Arka plan resmini CSS ile ekleyip blur efekti verelim */
    position: relative; overflow: hidden;
    height: 90vh; /* Daha yüksek */
    display: flex; align-items: center; justify-content: center;
    text-align: center;
}
.hero-background { /* Ayrı bir div ile arka plan */
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: url('assets/images/hero-background.png') no-repeat center center/cover;
    filter: blur(8px) brightness(0.9); /* Arka planı bulanıklaştır */
    transform: scale(1.05); /* Kenarlarda boşluk kalmasın */
    z-index: 1;
}
.hero .container { position: relative; z-index: 2; padding: 30px; }
/* Glassmorphism kartı hero içeriği için */
.hero-content {
    background: var(--card-bg); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--card-border); border-radius: var(--radius-l);
    padding: clamp(2rem, 6vw, 4rem); /* İç boşluk */
    box-shadow: var(--shadow-soft);
    max-width: 700px; /* İçerik genişliği */
    margin: 0 auto;
}
.hero h1 { color: var(--text-color); } /* Artık beyaz değil */
.hero p { color: var(--text-light); max-width: 550px; margin: 0 auto 2.5rem auto; font-size: 1.1rem; }

/* --- Nasıl Çalışır Bölümü --- */
.how-it-works { padding: 100px 0; background-color: var(--section-bg-light); }
.steps-container {
    display: grid; /* Grid layout kullanalım */
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* Esnek sütunlar */
    gap: 35px;
}
.step-card {
    background: var(--white-color); /* Glass yerine temiz beyaz */
    padding: 35px; text-align: center; border-radius: var(--radius-l);
    box-shadow: var(--shadow-soft);
    border: 1px solid #e0e0e0;
}
.step-icon { height: 50px; margin-bottom: 1.5rem; color: var(--primary-color); /* İkon rengi */}
.step-card h3 { margin-bottom: 0.8rem; font-size: 1.3rem; }

/* --- Özellikler Bölümü --- */
.features { padding: 100px 0; background-color: var(--white-color); }
.feature-content {
    display: flex; align-items: center; gap: 60px;
    background-color: var(--section-bg-light); /* Arka plan rengi */
    border-radius: var(--radius-l); padding: 50px;
}
.feature-image { max-width: 40%; border-radius: var(--radius-m); box-shadow: var(--shadow-soft);}
.feature-list { flex: 1; }
.feature-list h2 { text-align: left; margin-bottom: 2rem; }
.feature-list ul { list-style: none; padding: 0; }
.feature-list li { margin-bottom: 1.2rem; font-size: 1.05rem; display: flex; align-items: flex-start; }
.feature-list li strong { /* Checkmark ikonu gibi */
    color: var(--primary-color); margin-right: 10px; font-size: 1.2em; line-height: 1.3;
}

/* --- Son Satın Alma Bölümü --- */
.final-cta {
    padding: 100px 0; background-color: var(--section-bg-dark);
    color: var(--white-color); text-align: center;
}
.final-cta h2 { color: var(--white-color); }
.final-cta p { color: rgba(255, 255, 255, 0.7); max-width: 550px; margin: 0 auto 2.5rem auto; }
.final-cta .cta-button { background-color: var(--white-color); color: var(--primary-color); } /* Ters renk buton */
.final-cta .cta-button:hover { background-color: #f0f0f0; color: #0056b3; box-shadow: 0 6px 15px rgba(255, 255, 255, 0.2);}
.final-cta .amazon-logo { filter: none; } /* Orijinal Amazon rengi */

/* --- Footer --- */
footer {
    padding: 50px 0; background-color: var(--section-bg-light); text-align: center;
}
footer p { margin: 8px 0; font-size: 0.9rem; color: var(--text-light); }
footer a { color: var(--text-color); text-decoration: none; font-weight: 500;}
footer a:hover { color: var(--primary-color); }

/* --- Mobil Uyum (Responsive) --- */
@media (max-width: 992px) {
    .feature-content { flex-direction: column; text-align: center; padding: 40px; }
    .feature-list h2 { text-align: center; }
    .feature-image { max-width: 70%; margin-bottom: 2rem; }
}

@media (max-width: 768px) {
    h1 { font-size: clamp(2rem, 6vw, 2.8rem); }
    h2 { font-size: clamp(1.6rem, 5vw, 2rem); margin-bottom: 3rem; }
    .hero { height: auto; min-height: 70vh; padding: 80px 0; } /* Yüksekliği ayarla */
    .hero-content { padding: clamp(1.5rem, 5vw, 2.5rem); }
    .how-it-works, .features, .final-cta, footer { padding: 60px 0; }
    
    .navbar { padding: 0.8rem 0; }
    .navbar .container { flex-direction: column; gap: 15px; }
    .navbar nav { border-top: 1px solid #eee; padding-top: 15px; width: 100%; text-align: center;}
    .navbar nav a { margin: 0 15px; }
    .navbar nav a.cta-button { display: none; } /* Mobil menüde ana butonu gizle */
}

@media (max-width: 576px) {
    .steps-container { grid-template-columns: 1fr; } /* Adımları tek sütuna düşür */
    .feature-list li { font-size: 1rem; }
    .cta-button.large { padding: 15px 30px; font-size: 1rem; }
}