/* =========================================
   Mobile-First & Ultra Modern AI Theme
   ========================================= */

   :root {
    /* Renk Paleti: Deep Space Blue & Electric Cyan & Neon Violet */
    --bg-base: #04060d;
    --surface: #0a0d18;
    --surface-light: #12172a;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent: #00E5FF;
    --accent-alt: #9D00FF;
    --gradient: linear-gradient(135deg, var(--accent), var(--accent-alt));
    
    /* Tipografi */
    --font: 'Plus Jakarta Sans', sans-serif;
    
    /* Metrikler */
    --border-radius: 28px;
    --border-color: rgba(255, 255, 255, 0.08);
}

* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* --- Arka Plan Işık Efektleri --- */
.bg-effects {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.25;
}

.orb-1 {
    top: -10%; left: -10%;
    width: 60vw; height: 60vw;
    background: var(--accent-alt);
}

.orb-2 {
    bottom: -10%; right: -10%;
    width: 60vw; height: 60vw;
    background: var(--accent);
}

/* --- Header --- */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    position: sticky;
    top: 0;
    background: rgba(4, 6, 13, 0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 50;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.accent-color { 
    color: var(--accent); 
}

/* --- Ana İçerik Yönlendirmesi --- */
.main-content {
    padding: 2.5rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 500px;
    margin: 0 auto;
}

/* --- Hero (Karşılama) --- */
.hero-section {
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.pill-badge {
    display: inline-block;
    align-self: flex-start;
    background: rgba(0, 229, 255, 0.1);
    color: var(--accent);
    border: 1px solid rgba(0, 229, 255, 0.25);
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1.5rem;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.25rem;
    letter-spacing: -1.5px;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-section p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    line-height: 1.6;
}

/* --- Cards Container (YENİ) --- */
.cards-container {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    width: 100%;
}

/* --- Fiyatlandırma ve Ürün Kartı --- */
.pricing-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    position: relative;
    box-shadow: 0 25px 50px rgba(0,0,0,0.4);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.pricing-card:hover {
    border-color: rgba(0, 229, 255, 0.3);
    transform: translateY(-5px);
}

.pricing-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 4px;
    background: var(--gradient);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* İkinci kartı (Popüler) daha vurgulu yapmak için */
.pricing-card.featured {
    background: linear-gradient(180deg, #0f152d 0%, var(--surface) 100%);
    border-color: rgba(157, 0, 255, 0.3);
    box-shadow: 0 0 40px rgba(157, 0, 255, 0.15);
    order: -1; /* Mobilde ilk sırada göster */
}

.card-hero {
    margin-bottom: 1.5rem;
}

.hero-logo {
    width: 40px;
    height: 40px;
    margin-bottom: 1.25rem;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.5));
}

.product-title {
    font-size: 1.65rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.product-subtitle {
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 600;
}

/* --- Fiyat Gösterimi --- */
.price-container {
    display: flex;
    align-items: baseline;
    margin-bottom: 2rem;
    padding-bottom: 1.75rem;
    border-bottom: 1px solid var(--border-color);
}

.currency {
    font-size: 1.5rem;
    font-weight: 700;
    margin-right: 4px;
    color: var(--text-secondary);
}

.amount {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -2.5px;
    line-height: 1;
}

.period {
    color: var(--text-secondary);
    margin-left: 8px;
    font-weight: 500;
    font-size: 0.95rem;
}

/* --- Özellikler Listesi --- */
.features-section {
    flex-grow: 1; /* Kart boylarını eşitler, Butonu en alta iter */
}

.features-section h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1.25rem;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.02);
    padding: 0.85rem 1rem;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.03);
}

.icon-box {
    width: 36px;
    height: 36px;
    background: var(--surface-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 14px;
    flex-shrink: 0;
}

.brand-icon {
    width: 20px; height: 20px;
}

.brand-icon.check {
    color: var(--accent);
}

.feature-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: #f1f5f9;
    line-height: 1.4;
}

/* --- Genel CTA (Mobilde ve Masaüstünde Görünür) --- */
.card-cta {
    margin-top: 2rem;
}

.primary-btn {
    width: 100%;
    padding: 1.25rem;
    border: none;
    border-radius: 16px;
    background: var(--gradient);
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 700;
    font-family: var(--font);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 10px 25px rgba(157, 0, 255, 0.4);
}

.button-hover-fx:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(0, 229, 255, 0.4);
}

/* =========================================
   DESKTOP SCALING (MIN-WIDTH LOGIC)
   ========================================= */
@media (min-width: 1024px) {
    /* Ana düzeni yan yana (Row) yap */
    .main-content {
        flex-direction: row;
        max-width: 1400px;
        align-items: stretch; /* Kartları eşit boy yapar */
        padding: 5rem 2rem;
        gap: 4rem;
    }

    .hero-section {
        flex: 1;
        max-width: 400px;
    }

    .hero-section h1 {
        font-size: 4rem;
        letter-spacing: -2px;
    }

    .cards-container {
        flex: 2;
        flex-direction: row;
        gap: 2rem;
    }

    .pricing-card {
        flex: 1; /* Tüm kartlar eşit genişlikte */
        padding: 2.5rem;
        order: 0; /* Masaüstünde doğal (DOM) sırasına geri dön */
    }
    
    .app-header {
        padding: 1.5rem 4rem;
    }
}

/* =========================================
   ADMIN PANEL STYLES (Mobile First)
   ========================================= */
.admin-container {
    max-width: 500px;
    margin: 2rem auto;
    padding: 1rem;
}

.admin-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    position: relative;
}

.admin-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 4px;
    background: var(--gradient);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.admin-card h2 {
    margin-bottom: 1.5rem;
    font-weight: 800;
    font-size: 1.75rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 1.1rem;
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 12px;
    font-family: var(--font);
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.2);
}

textarea.form-control {
    min-height: 140px;
    resize: vertical;
}

@media (min-width: 768px) {
    .admin-container {
        max-width: 700px;
        margin: 4rem auto;
    }
}