/* ===================================
   CSS Variables & Reset
   =================================== */

:root {
    /* Colors */
    --color-primary: #FF0000;
    --color-primary-dark: #CC0000;
    --color-primary-light: #FF3333;
    --color-secondary: #00FFE5;
    --color-bg-dark: #000000;
    --color-bg-card: #0A0A0A;
    --color-bg-elevated: #0F0F0F;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #999999;
    --color-text-muted: #666666;
    --color-border: #1A1A1A;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF0000 0%, #990000 100%);
    --gradient-cyber: linear-gradient(135deg, #FF0000 0%, #00FFE5 100%);
    --gradient-glow: radial-gradient(circle, rgba(255, 0, 0, 0.3) 0%, rgba(255, 0, 0, 0) 70%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 5rem;
    --font-size-7xl: 7rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(255, 0, 0, 0.5);
    
    /* Z-index */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1100;
    --z-fixed: 1200;
    --z-modal: 1300;
    --z-tooltip: 1400;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

/* ===================================
   Utility Classes
   =================================== */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    overflow: hidden;
}

/* ===================================
   Navigation
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.logo img {
    width: 40px;
    height: 40px;
    max-width: 40px;
    max-height: 40px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-text-primary);
    transition: var(--transition-base);
}

/* ===================================
   Buttons
   =================================== */

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 28px;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
    background: var(--gradient-primary);
    border-radius: 8px;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 28px;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
    background: transparent;
    border: 2px solid var(--color-border);
    border-radius: 8px;
}

.btn-outline:hover {
    border-color: var(--color-primary);
    background: rgba(255, 0, 0, 0.1);
}

.btn-large {
    padding: 16px 36px;
    font-size: var(--font-size-lg);
}

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
}

.btn-link:hover {
    gap: var(--spacing-sm);
}

.btn-play {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: var(--transition-base);
}

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

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.footer-newsletter h3 {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.footer-newsletter p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.newsletter-form input {
    flex: 1;
    padding: 14px 20px;
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: var(--transition-base);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    transition: var(--transition-base);
}

.social-link:hover {
    color: var(--color-text-primary);
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.footer-column a:hover {
    color: var(--color-primary);
}

.footer-column p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.info-item svg {
    flex-shrink: 0;
}

.footer-copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

/* ===================================
   Responsive Design
   =================================== */

   /* ===================================
   Responsive 1199px (Geniş Tabletler)
   =================================== */

@media (max-width: 1199px) {
    
    /* 1200px'in hemen altında bozulan 
       GLOBAL (her sayfada olan) 
       öğeler için kurallar buraya gelecek.
       
       Şu anki testimize göre, navbar veya footer
       henüz bozulmadığı için burası (şimdilik) boş.
    */
}

/* ===================================
   Responsive 767px (Tabletler/Telefonlar)
   =================================== */

@media (max-width: 767px) {

    /* 1. Masaüstü menüsünü gizle */
    .nav-menu {
        position: fixed;
        top: 70px; /* Navbar yüksekliği kadar (header.php'ye göre ayarla) */
        left: -100%; /* Ekranın solunda gizli başlar */
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(10px);

        /* Linkleri alt alta dizer */
        flex-direction: column; 
        padding: var(--spacing-xl);
        transition: var(--transition-base);
    }

    /* 2. JS 'active' sınıfını eklediğinde menüyü göster */
    .nav-menu.active {
        left: 0;
    }

    /* 3. Hamburger ikonunu göster */
    .mobile-menu-toggle {
        display: flex; /* 'none' olan varsayılanı ezer */
        flex-direction: column;
        gap: 5px;
        padding: var(--spacing-sm);
    }

    /* 4. Hamburger ikonunun 'X' olma animasyonu */
    .mobile-menu-toggle span {
        width: 25px;
        height: 2px;
        background: var(--color-text-primary);
        transition: var(--transition-base);
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* 5. Global butonları tam genişlik yap */
    .btn-large {
        width: 100%;
        justify-content: center;
    }

    /* 6. Footer linklerini 1 sütuna düşür */
    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .newsletter-form {
        flex-direction: column;
    }
}

/* ===================================
   Animation Classes (AOS support)
   =================================== */

[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(50px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-50px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(50px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}