/* Base Styles & Variables */
:root {
    --primary-color: #0d47a1; /* Deep Professional Blue */
    --secondary-color: #1976d2; /* Vibrant Blue Accent */
    --accent-color: #00bcd4; /* Teal Accent */
    --dark-color: #0f172a;
    --text-color: #334155;
    --text-light: #64748b;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.85); /* Dark Glass */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.15rem; /* slightly smaller to fit full title */
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.5px;
}

.navbar-logo {
    height: 48px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3)); /* contrast against dark nav */
}

.logo-text {
    line-height: 1.2;
}

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

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: #cbd5e1;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--white);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: url("web%20arka%20plan.png") center/cover no-repeat;
    overflow: hidden;
}

/* Hero::before kullanılacak - Yumuşak merkezden dışa beyaz geçiş efekti */
.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150vw;
    height: 150vh;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.6) 20%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 80px; 
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    max-width: 900px;
    width: 92%;
    animation: fadeUp 1s ease-out;
}

.hero-header-logo {
    max-width: 250px; 
    width: 100%;
    height: auto;
    margin-bottom: 24px;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1)); /* Hafif tok gölge */
    transition: transform 0.3s ease;
}
.hero-header-logo:hover {
    transform: scale(1.05);
}

.hero-association {
    font-size: 3.5rem; 
    font-weight: 900;
    color: #1e40af; 
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.hero-title {
    font-size: 2.2rem; 
    font-weight: 800;
    color: #0f172a; 
    line-height: 1.3;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #334155;
    max-width: 600px;
    margin-bottom: 40px;
    font-weight: 600;
}

/* Countdown */
.countdown-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 32px 48px;
    margin-bottom: 48px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}

.countdown-container h3 {
    color: #1e3a8a; /* Daha koyu mavi */
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.countdown {
    display: flex;
    gap: 24px;
    justify-content: center;
}

.time-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 80px;
}

.time-box span {
    font-size: 3.5rem;
    font-weight: 900;
    color: #1d4ed8; 
    line-height: 1;
    margin-bottom: 8px;
}

.time-box p {
    color: #0f172a;
    font-size: 0.9rem;
    font-weight: 800;
    text-transform: uppercase;
}

.cta-btn {
    display: inline-block;
    background: var(--accent-color);
    color: var(--white);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 16px 40px;
    border-radius: 50px;
    box-shadow: 0 10px 20px rgba(0, 188, 212, 0.3);
    transition: var(--transition);
    border: 2px solid transparent;
}

.cta-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 188, 212, 0.4);
    background: transparent;
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Sections Common */
section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 16px;
}

.title-underline {
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
    margin-bottom: 32px;
}

.title-underline.center {
    margin: 0 auto 32px auto;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 48px auto;
}

.center {
    text-align: center;
}

/* About Section */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 24px;
    font-size: 1.05rem;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--white);
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 1.5rem;
}

.feature-item h4 {
    color: var(--dark-color);
    font-weight: 600;
}

.about-image {
    perspective: 1000px;
}

.image-collage {
    position: relative;
    width: 100%;
    height: 500px;
}

.collage-img {
    position: absolute;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--white);
    transition: transform 0.5s ease;
    object-fit: cover;
}

.img-main {
    width: 75%;
    height: 350px;
    top: 50%;
    transform: translateY(-50%) rotateY(-5deg);
    left: 0;
    z-index: 2;
}

.img-sub1 {
    width: 60%;
    height: 250px;
    top: 0;
    right: 0;
    transform: translate(-10%, 10%) rotateY(5deg);
    z-index: 1;
}

.img-sub2 {
    width: 55%;
    height: 200px;
    bottom: -20px;
    right: 5%;
    transform: rotate(-3deg);
    z-index: 3;
}

.collage-img:hover {
    transform: scale(1.05);
    z-index: 10;
}

/* Pricing Section */
.pricing {
    background: var(--white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.glass-card {
    background: var(--white);
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05), 0 10px 15px rgba(0,0,0,0.05);
    border: 1px solid #f1f5f9;
    position: relative;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.glass-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
}

.glass-card.premium {
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    color: var(--white);
    border: none;
}

.card-badge {
    position: absolute;
    top: -15px;
    right: 32px;
    background: var(--accent-color);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 4px 6px rgba(0,188,212,0.3);
}

.card-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.card-header p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.glass-card.premium .card-header p {
    color: #94a3b8;
}

.card-price {
    margin: 32px 0;
    display: flex;
    align-items: flex-start;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 8px;
    margin-right: 4px;
}

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

.period {
    align-self: flex-end;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-left: 8px;
    margin-bottom: 8px;
}

.glass-card.premium .period {
    color: #94a3b8;
}

.card-features {
    margin-bottom: 40px;
    flex-grow: 1;
}

.card-features li {
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
}

.glass-card.premium .card-features li {
    border-bottom-color: rgba(255,255,255,0.1);
}

.card-features li::before {
    content: '✓';
    color: #10b981; /* Green check */
    font-weight: bold;
    margin-right: 12px;
}

.card-btn {
    display: block;
    text-align: center;
    background: var(--light-bg);
    color: var(--primary-color);
    padding: 16px;
    border-radius: 12px;
    font-weight: 600;
    transition: var(--transition);
}

.card-btn:hover {
    background: var(--primary-color);
    color: var(--white);
}

.premium-btn {
    background: var(--accent-color);
    color: var(--white);
}

.premium-btn:hover {
    background: #00acc1;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,188,212,0.4);
}

/* Footer */
.footer {
    background: #0b1120 url('extracted_images/page10_img0.jpeg') center/cover no-repeat;
    position: relative;
    color: #94a3b8;
    padding: 60px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(11, 17, 32, 0.85); /* Dark overlay to make text readable */
    z-index: 1;
}

.footer-content {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.footer-col h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-col p {
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.footer-col strong {
    color: #cbd5e1;
}

.footer-logo {
    max-width: 200px;
    height: auto;
    margin-bottom: 24px;
    display: block;
    background: rgba(255,255,255,0.9);
    padding: 10px;
    border-radius: 8px;
}

.align-right {
    text-align: right;
}

.copyright {
    margin-top: 24px !important;
    font-size: 0.85rem !important;
    color: #64748b !important;
}

/* Animations */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 900px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        display: none;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .countdown {
        gap: 12px;
    }
    
    .time-box span {
        font-size: 2.5rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .align-right {
        text-align: left;
    }
}

@media (max-width: 600px) {
    .nav-links {
        display: none; /* simple mobile clear */
    }
    
    .countdown-container {
        padding: 24px;
    }
    
    .time-box {
        width: 60px;
    }
    
    .time-box span {
        font-size: 2rem;
    }
}