/* Reset & Fonts */
:root {
    --primary: #0F172A; /* Orijinal Lacivert Arka Plan */
    --accent: #F59E0B; /* VidInsight Sarısı */
    --accent-hover: #D97706;
    --text-light: #F8FAFC; 
    --text-dark: #0F172A; /* Koyu Metin Rengi (Beyaz Bölümler İçin) */
    --text-muted: #94A3B8;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: #1E293B;
    --header-bg: #FFFFFF; /* Beyaz Giriş Kısmı */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--primary);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Glassmorphism Utilities */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(245, 158, 11, 0.3); /* Accent tint */
}

/* Typography & Colors */
h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.1; margin-bottom: 1.5rem; }
h2 { font-size: 2.5rem; font-weight: 800; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; font-weight: 600; margin-bottom: 1rem; }
.highlight { color: var(--accent); }
.text-yellow { color: var(--accent); }
.text-green { color: #10B981; }
.text-red { color: #EF4444; }
a { text-decoration: none; color: inherit; }

/* Buttons */
.btn-primary {
    background-color: var(--accent);
    color: #111827;
    font-weight: 700;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.2s ease;
    font-size: 1.1rem;
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}
.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    font-weight: 600;
    padding: 0.8rem 1.8rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}
.btn-secondary:hover { color: var(--accent); }
.w-100 { width: 100%; }

/* Navbar (Aydınlık Kalan Kısım) */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}
.nav-links a {
    color: var(--text-dark);
    font-weight: 600;
    transition: all 0.2s;
}
.nav-links a:hover { color: var(--accent); }
.nav-btn { font-size: 0.9rem; padding: 0.6rem 1.4rem; }

/* Constrain Logo Size */
#nav-logo {
    height: 60px; /* NavBar boyutu */
    width: auto;
    display: block;
}

/* Hero Section (Aydınlık Kalan Kısım) */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6rem 5% 8rem;
    gap: 4rem;
    position: relative;
    background: #F8FAFC; /* Hafif gri (Off-white) */
    color: var(--text-dark);
}

.hero-content { flex: 1; }
.hero-content h1 { color: var(--text-dark); }
.hero-content p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 550px;
}
.hero-badge {
    display: inline-block;
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent-hover);
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.hero-actions { display: flex; gap: 1.2rem; align-items: center; }

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Mockup Widget */
.mockup {
    width: 100%;
    max-width: 480px;
    border-radius: 20px;
    background: white;
    box-shadow: 0 30px 60px rgba(0,0,0,0.12);
    border: 1px solid var(--glass-border);
    overflow: hidden;
}
.mockup-header {
    background: #F1F5F9;
    padding: 14px 24px;
    display: flex;
    gap: 10px;
    border-bottom: 1px solid var(--glass-border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #FF5F57; }
.dot.yellow { background: #FFBD2E; }
.dot.green { background: #28C940; }

.mockup-body {
    padding: 2.5rem;
}
.stat-row {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.stat-box {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    background: #F8FAFC;
    padding: 1.2rem 1.5rem;
    border-radius: 12px;
    border: 1px solid #E2E8F0;
    transition: transform 0.2s;
}
.stat-box:hover { transform: scale(1.02); }
.stat-box i { font-size: 1.8rem; }
.stat-box div { display: flex; flex-direction: column; }
.stat-box span { font-size: 1.4rem; font-weight: 800; color: var(--text-dark); }
.stat-box small { color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; font-size: 0.75rem; font-weight: 600;}

/* Sections Common */
.section-title {
    text-align: center;
    margin-bottom: 4rem;
}
.section-title p {
    color: var(--text-muted);
    font-size: 1.2rem;
}

/* Features (Karanlık Mod'a Dönüş) */
.features {
    padding: 7rem 5%;
    background: #0B1120; /* Koyu geçiş */
}
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}
.feature-card.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    padding: 2.5rem;
}
.feature-card.glass-card:hover { border-color: var(--accent); }
.icon-box {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.8rem;
}
.feature-card h3 { color: white; }
.feature-card p { color: var(--text-muted); }

/* Pricing */
.pricing {
    padding: 6rem 5%;
    position: relative;
}
.pricing::after {
    content: '';
    position: absolute;
    bottom: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, rgba(15, 23, 42, 0) 70%);
    z-index: -1;
    filter: blur(50px);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    align-items: center;
}
.pricing-card {
    position: relative;
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
}
.pricing-card.popular {
    transform: scale(1.05);
    border-color: var(--accent);
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}
.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}
.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #111827;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
    white-space: nowrap;
}
.pkg-header { font-size: 1.5rem; font-weight: 700; color: var(--text-muted); margin-bottom: 0.5rem;}
.pkg-price { font-size: 3.5rem; font-weight: 800; color: white; margin-bottom: 1rem;}
.pkg-price span { font-size: 1.2rem; font-weight: 400; color: var(--text-muted);}
.pkg-desc { color: var(--text-muted); margin-bottom: 2rem; font-size: 0.95rem; min-height: 50px;}
.pkg-features {
    list-style: none;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}
.pkg-features li {
    margin-bottom: 1rem;
    display: flex;
    gap: 10px;
    align-items: center;
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.modal {
    width: 100%;
    max-width: 500px;
    background: #1E293B;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    padding: 2.5rem;
}
.modal-overlay.active .modal {
    transform: translateY(0);
}
.close-modal {
    position: absolute;
    top: 20px; right: 20px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
}
.close-modal:hover { color: white; }
.modal h2 { margin-bottom: 0.5rem; font-size: 1.8rem; }
.modal p { color: var(--text-muted); margin-bottom: 2rem; }

.input-group { margin-bottom: 1.5rem; display: flex; flex-direction: column; gap: 8px;}
.input-group label { font-weight: 600; font-size: 0.9rem; color: #E2E8F0; }
.input-group input, .input-group textarea {
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--glass-border);
    color: white;
    padding: 12px 15px;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s;
}
.input-group input:focus, .input-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-status { margin-top: 1.5rem; text-align: center; }
.loading-text { color: var(--accent); font-weight: 600; }

/* Footer */
footer {
    background: #0B1120;
    padding: 4rem 5% 1rem;
    border-top: 1px solid var(--glass-border);
}
.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 4rem;
    margin-bottom: 3rem;
}
.footer-brand { flex: 2; min-width: 250px; }
.footer-brand p { color: var(--text-muted); max-width: 300px; }
.footer-brand img {
    height: 55px; /* Footer'da biraz daha küçük tutalım */
    width: auto;
    margin-bottom: 20px;
}
.footer-links, .footer-contact { flex: 1; min-width: 150px; }
.footer-links h4, .footer-contact h4 { margin-bottom: 1.5rem; color: white; font-size: 1.2rem; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 0.8rem; }
.footer-links a { color: var(--text-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-contact p { color: var(--text-muted); }

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: #64748B;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
    .hero { flex-direction: column; text-align: center; padding-top: 3rem; }
    .hero-content p { margin: 0 auto 2rem; }
    .hero-actions { justify-content: center; }
    
    .nav-links { display: none; } /* Simplified mobile nav */
    
    .pricing-card.popular { transform: scale(1); }
    .pricing-card.popular:hover { transform: translateY(-5px); }
}

@media (max-width: 600px) {
    h1 { font-size: 2.5rem; }
    .hero { padding: 3rem 5%; }
}