:root {
    --bg: #020617;
    --card-bg: rgba(30, 41, 59, 0.4);
    --primary: #38bdf8;
    --secondary: #818cf8;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

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

/* Arka Plan Glow Efekti */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.05) 0%, transparent 80%);
    pointer-events: none;
    z-index: -1;
}

/* Navigasyon */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 10%;
    background: rgba(2, 6, 23, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo { font-size: 1.5rem; font-weight: 800; letter-spacing: -1px; }
.logo span { background: linear-gradient(to right, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

nav ul { display: flex; list-style: none; gap: 30px; }
nav ul a { text-decoration: none; color: var(--text-dim); font-weight: 500; transition: 0.3s; }
nav ul a:hover { color: var(--primary); }

/* Header */
header { padding: 120px 10% 60px; text-align: center; }
header h1 { font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 800; margin-bottom: 20px; letter-spacing: -2px; line-height: 1.1; }
header h1 span { color: var(--primary); }
header p { font-size: 1.1rem; color: var(--text-dim); max-width: 700px; margin: 0 auto; }

/* Uygulama Kartları */
.container { padding: 40px 10%; }
.app-showcase { margin-bottom: 40px; }

.showcase-flex {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    padding: 40px;
    display: flex;
    align-items: center;
    gap: 50px;
    backdrop-filter: blur(8px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.showcase-flex:hover {
    transform: translateY(-8px);
    border-color: rgba(56, 189, 248, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* İkon Alanı */
.app-icon-display {
    width: 150px; height: 150px;
    border-radius: 35px;
    overflow: hidden;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    background: #1e293b;
}

.app-real-icon {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

/* Detaylar */
.app-details h2 { font-size: 2rem; font-weight: 700; margin-bottom: 15px; letter-spacing: -0.5px; }
.app-category { font-weight: 600; font-size: 0.75rem; color: var(--primary); text-transform: uppercase; letter-spacing: 2px; display: block; margin-bottom: 5px; }
.app-details p { color: var(--text-dim); margin-bottom: 25px; }

.details-btn {
    background: var(--text-main);
    color: var(--bg);
    border: none;
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
    font-family: inherit;
}

.details-btn:hover { background: var(--primary); color: white; transform: scale(1.05); }

/* İletişim Formu */
.contact-section { padding: 80px 10%; text-align: center; }
.contact-form {
    max-width: 600px; margin: 40px auto;
    background: var(--card-bg);
    padding: 40px; border-radius: 24px;
    border: 1px solid var(--glass-border);
}

.contact-form input, .contact-form textarea {
    width: 100%; padding: 15px; margin-bottom: 15px;
    background: #0f172a; border: 1px solid var(--glass-border);
    border-radius: 10px; color: white; font-family: inherit; font-size: 1rem;
}

.submit-btn {
    width: 100%; background: var(--primary); color: white;
    border: none; padding: 15px; border-radius: 10px;
    font-weight: 700; cursor: pointer; transition: 0.3s; font-family: inherit;
}

.submit-btn:hover { background: #0ea5e9; }

/* Modal (Detay Penceresi) */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.85); backdrop-filter: blur(5px);
    display: none; justify-content: center; align-items: center; z-index: 2000;
}
.modal-overlay.active { display: flex; }

.modal-content {
    background: #1e293b; padding: 40px; border-radius: 24px;
    max-width: 450px; width: 90%; position: relative;
    border: 1px solid var(--primary);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.close-modal { position: absolute; top: 15px; right: 20px; font-size: 1.8rem; cursor: pointer; color: var(--text-dim); }

footer { text-align: center; padding: 40px; font-size: 0.9rem; color: var(--text-dim); border-top: 1px solid var(--glass-border); }

/* Mobil Uyumluluk */
@media (max-width: 768px) {
    nav { padding: 15px 5%; }
    nav ul { gap: 15px; }
    .showcase-flex { flex-direction: column; text-align: center; padding: 30px; gap: 30px; }
    .app-icon-display { width: 120px; height: 120px; border-radius: 28px; }
    header { padding: 80px 5%; }
}