/* style.css - Canlı ve Modern Tema */

:root {
    /* RENK PALETİ: Beyaz - Mor - Turuncu */
    --bg-body: #f8fafc;       /* Çok açık gri/beyaz */
    --bg-card: #ffffff;       /* Tam Beyaz */
    
    --primary: #6366f1;       /* İndigo (Canlı Morumsu Mavi) */
    --secondary: #ec4899;     /* Pembe */
    --accent: #f59e0b;        /* Turuncu */
    
    --text-main: #1e293b;     /* Koyu Lacivert (Siyah yerine) */
    --text-muted: #64748b;    /* Gri Metin */
    
    /* GRADYANLAR */
    --gradient-header: linear-gradient(to right, #4f46e5, #ec4899);
    --gradient-btn: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
    
    --shadow-card: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --font-main: 'Poppins', sans-serif;
}

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

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }

/* HEADER */
header {
    background: var(--gradient-header); /* Canlı Renkli Header */
    position: sticky; top: 0; z-index: 1000;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
nav { display: flex; justify-content: space-between; align-items: center; height: 70px; }

.logo {
    font-size: 24px; font-weight: 800; color: white; letter-spacing: 1px;
}

.nav-links { display: flex; gap: 25px; }
.nav-links a { 
    color: rgba(255,255,255,0.9); font-weight: 500; font-size: 0.95rem; 
}
.nav-links a:hover { color: white; transform: translateY(-2px); }

/* BUTONLAR */
.btn-login {
    background: rgba(255,255,255,0.2); color: white;
    padding: 8px 20px; border-radius: 20px; font-weight: 600;
}
.btn-login:hover { background: white; color: var(--primary); }

.btn-primary {
    display: inline-block; padding: 12px 30px;
    background: var(--gradient-btn); color: white;
    border-radius: 8px; font-weight: 600; border: none;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.4);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 6px 15px rgba(99, 102, 241, 0.6); }

/* HERO BÖLÜMÜ */
.hero {
    background: white;
    padding: 80px 0;
    text-align: center;
    border-bottom: 1px solid #e2e8f0;
}
.hero h1 { font-size: 3rem; color: var(--text-main); margin-bottom: 20px; line-height: 1.2; }
.hero h1 span { 
    background: var(--gradient-btn); -webkit-background-clip: text; -webkit-text-fill-color: transparent; 
}
.hero p { color: var(--text-muted); font-size: 1.2rem; max-width: 600px; margin: 0 auto 30px; }

/* KARTLAR */
.section-title { text-align: center; font-size: 2rem; margin: 50px 0 30px; color: var(--text-main); }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin-bottom: 60px; }

.card {
    background: var(--bg-card); border-radius: 12px; overflow: hidden;
    box-shadow: var(--shadow-card); border: 1px solid #f1f5f9;
    transition: 0.3s;
}
.card:hover { transform: translateY(-10px); box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1); }
.card-img { height: 200px; background-color: #e2e8f0; background-size: cover; background-position: center; }
.card-content { padding: 25px; }
.card h3 { color: var(--text-main); margin-bottom: 10px; font-size: 1.3rem; }
.badge { 
    display: inline-block; padding: 4px 10px; border-radius: 4px; 
    font-size: 0.75rem; font-weight: bold; margin-bottom: 10px; color: white;
}
.bg-purple { background: var(--primary); }
.bg-pink { background: var(--secondary); }

/* FORM */
.form-box {
    background: white; padding: 40px; border-radius: 15px;
    max-width: 500px; margin: 40px auto;
    box-shadow: var(--shadow-card);
}
.form-control {
    width: 100%; padding: 12px; margin-bottom: 15px;
    border: 2px solid #e2e8f0; border-radius: 8px;
    font-family: inherit; color: var(--text-main);
}
.form-control:focus { outline: none; border-color: var(--primary); }

/* FOOTER */
footer { background: #1e293b; color: white; padding: 50px 0; text-align: center; margin-top: auto; }