/* Kalıcı Karanlık Tema Değişkenleri */
:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --primary-blue: #3b82f6;
    --secondary-blue: #1e293b;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --transition: all 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Poppins', sans-serif; }
body { background-color: var(--bg-color); color: var(--text-color); transition: var(--transition); line-height: 1.6; position: relative; z-index: 1; }

.floating-bg { position: fixed; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: -1; overflow: hidden; }
.float-logo { position: absolute; width: 120px; opacity: 0.15; filter: invert(1); animation: floatAnim 20s infinite linear; }
.logo1 { top: 15%; left: 10%; animation-duration: 25s; }
.logo2 { top: 60%; left: 75%; animation-duration: 30s; animation-direction: reverse; }
.logo3 { top: 70%; left: 20%; animation-duration: 22s; }

@keyframes floatAnim {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-120px) rotate(180deg); }
    100% { transform: translateY(0) rotate(360deg); }
}

header { display: flex; justify-content: space-between; align-items: center; padding: 20px 50px; background-color: var(--bg-color); box-shadow: 0 2px 10px rgba(0,0,0,0.2); position: sticky; top: 0; z-index: 1000; transition: var(--transition); }
.logo { display: flex; align-items: center; gap: 12px; font-size: 24px; font-weight: 700; color: var(--primary-blue); cursor: pointer; }
.fb-logo { width: 35px; height: auto; }
.nav-links { list-style: none; display: flex; gap: 30px; align-items: center; }
.nav-links a { text-decoration: none; color: var(--text-color); font-weight: 600; transition: var(--transition); cursor: pointer; }
.nav-links a:hover, .nav-links a.active { color: var(--primary-blue); }

#admin-nav-btn { opacity: 0.6; font-size: 14px; border-left: 1px solid rgba(255, 255, 255, 0.2); padding-left: 20px; }
#admin-nav-btn:hover { opacity: 1; color: #10b981; }

.section { display: none; min-height: calc(100vh - 80px); justify-content: center; align-items: center; padding: 50px; animation: fadeIn 0.6s ease-out; }
.section.active-tab { display: flex; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.content-box { background-color: var(--secondary-blue); padding: 40px; border-radius: 15px; max-width: 900px; width: 100%; box-shadow: var(--box-shadow); transition: var(--transition); }
.services-box { max-width: 1200px; }
h1, h2 { color: var(--primary-blue); margin-bottom: 20px; }
h1 { font-size: 36px; }
h2 { font-size: 28px; }
p { margin-bottom: 15px; font-size: 18px; }
.interactive-box:hover { transform: translateY(-5px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6); }

.profile-container { display: flex; align-items: center; gap: 40px; }
.profile-text { flex: 1; }
.profile-image { flex-shrink: 0; }
.profile-image img { width: 250px; height: 250px; object-fit: cover; border-radius: 50%; border: 5px solid var(--bg-color); box-shadow: var(--box-shadow); transition: var(--transition); }
.profile-image img:hover { transform: scale(1.05) rotate(3deg); }

.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 25px; margin-top: 20px; }
.service-card { background-color: var(--bg-color); padding: 25px; border-radius: 12px; border: 1px solid rgba(255, 255, 255, 0.03); box-shadow: 0 4px 15px rgba(0,0,0,0.2); transition: var(--transition); }
.service-card:hover { transform: translateY(-5px); border-color: var(--primary-blue); box-shadow: 0 10px 25px rgba(59, 130, 246, 0.15); }
.service-card h3 { font-size: 19px; color: var(--primary-blue); margin-bottom: 15px; font-weight: 700; }
.service-detail { font-size: 14px; color: #cbd5e1; line-height: 1.6; margin-bottom: 10px; padding-left: 12px; border-left: 2px solid rgba(59, 130, 246, 0.3); }
.service-detail strong { color: #ffffff; display: inline-block; margin-right: 3px; }

.skills-container { margin-top: 30px; display: flex; flex-direction: column; gap: 25px; }
.skill-info { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.skill-name { font-weight: 600; font-size: 16px; }
.skill-percent { font-weight: 700; font-size: 16px; color: var(--primary-blue); }
.skill-bar { width: 100%; background-color: var(--bg-color); height: 12px; border-radius: 20px; overflow: hidden; box-shadow: inset 0 2px 5px rgba(0,0,0,0.5); }
.skill-fill { height: 100%; background: linear-gradient(90deg, var(--primary-blue), #60a5fa); border-radius: 20px; width: 0; transition: width 1.5s ease-in-out; }

.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 25px; margin-top: 25px; }
.portfolio-item { position: relative; border-radius: 12px; overflow: hidden; cursor: zoom-in; box-shadow: 0 5px 15px rgba(0,0,0,0.3); }
.portfolio-item img { width: 100%; height: 220px; object-fit: cover; display: block; transition: transform 0.5s ease; }
.portfolio-item:hover img { transform: scale(1.05); }
.portfolio-description { margin-top: 40px; padding-top: 30px; border-top: 1px solid rgba(255, 255, 255, 0.1); text-align: justify; }
.portfolio-description p { font-size: 16px; color: #cbd5e1; line-height: 1.8; margin: 0; }

.contact-container { display: flex; gap: 40px; margin-top: 30px; }
.contact-info { flex: 1; }
.contact-info p { color: #cbd5e1; margin-bottom: 25px; font-size: 16px; }
.contact-info ul { list-style: none; }
.contact-info ul li { margin-bottom: 15px; font-size: 18px; font-weight: 600; }
.contact-info ul li strong { color: var(--primary-blue); font-weight: 700; margin-right: 5px; }
.contact-form { flex: 1; display: flex; flex-direction: column; }
.contact-form form { display: flex; flex-direction: column; gap: 15px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 15px; border-radius: 8px; border: 1px solid rgba(255, 255, 255, 0.1); background-color: var(--bg-color); color: var(--text-color); font-family: 'Poppins', sans-serif; font-size: 15px; outline: none; transition: border 0.3s; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--primary-blue); }
.submit-btn { background-color: var(--primary-blue); color: #fff; padding: 15px; border: none; border-radius: 8px; font-weight: 600; font-size: 16px; cursor: pointer; transition: background-color 0.3s, transform 0.2s; }
.submit-btn:hover { background-color: #1d4ed8; transform: translateY(-2px); }

.modal { display: none; position: fixed; z-index: 2000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.9); justify-content: center; align-items: center; }
.modal.active-modal { display: flex; animation: zoomIn 0.3s ease; }
.modal-content { max-width: 90%; max-height: 90vh; border-radius: 10px; box-shadow: 0 10px 40px rgba(0,0,0,0.8); object-fit: contain; }
.close-modal { position: absolute; top: 20px; right: 40px; color: #ffffff; font-size: 50px; font-weight: bold; cursor: pointer; transition: color 0.3s; }
.close-modal:hover { color: var(--primary-blue); }
@keyframes zoomIn { from { transform: scale(0.8); opacity: 0; } to { transform: scale(1); opacity: 1; } }

@media (max-width: 768px) {
    header { flex-direction: column; gap: 15px; padding: 20px; }
    .nav-links { gap: 15px; flex-wrap: wrap; justify-content: center; }
    #admin-nav-btn { border-left: none; padding-left: 0; margin-top: 5px; }
    .content-box { padding: 20px; }
    .profile-container { flex-direction: column-reverse; text-align: center; }
    .profile-image img { width: 180px; height: 180px; }
    .contact-container { flex-direction: column; gap: 30px; }
    .close-modal { top: 10px; right: 20px; font-size: 40px; }
}