/* theme.css dosyasından gelen değişkenler kullanılacaktır. */
/* Bu dosyada :root tanımı bulunmamaktadır. */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
   scroll-behavior: smooth;
}

body {
    color: var(--text-light);
    background-color: var(--dark-bg);
    line-height: 1.6;
    overflow-x: hidden; /* Dikkat: Yatay taşmaları gizler, nedenini bulup çözmek daha iyi olabilir. */
}

body.mobile-menu-active {
     overflow: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

/* Helper class for frosted panel effect - HTML'e eklenmeli */
/* Not: backdrop-filter için background'ın yarı saydam olması gerekir. */
/* Eğer theme.css'deki --card-bg yarı saydamsa, background: var(--card-bg); kullanabilirsiniz. */
.frosted-panel {
    background: rgba(26, 26, 26, 0.7); /* Yarı saydam arka plan */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--secondary-color, rgba(0, 200, 255, 0.1)); /* Fallback eklendi */
    /* border-radius: 16px; /* Genel bir değer veya bileşene özel bırakılabilir */
    overflow: hidden;
}


/* Particle Background */
/* Performans Notu: Çok sayıda DOM elemanı yerine canvas tabanlı (örn: particles.js) bir çözüm daha performanslı olabilir. */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background-color: rgba(var(--secondary-color-rgb, 0, 200, 255), 0.5); /* Fallback için RGB eklenebilir */
    border-radius: 50%;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

/* Header Styles */
header {
    background-color: rgba(10, 10, 10, 0.8); /* Performans Notu: backdrop-filter yoğun kullanıldığında performansı etkileyebilir. */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-light);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1); /* Fallback */
    border-bottom: 1px solid rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1); /* Fallback */
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    min-height: 70px; /* Örnek header yüksekliği, ayarlanabilir */
}

.logo {
    display: flex;
    align-items: center;
    font-size: 26px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--text-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.5); /* Fallback */
    flex-shrink: 0;
    text-decoration: none;
}

.logo span {
    color: var(--secondary-color);
    -webkit-text-fill-color: var(--secondary-color); /* Gradient ile çakışabilir, kontrol edin */
}

.logo-icon {
    margin-right: 10px;
    font-size: 30px;
    animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
    0% {
        text-shadow: 0 0 10px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.5), 0 0 20px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3);
    }
    50% {
        text-shadow: 0 0 20px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.8), 0 0 30px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.5);
    }
    100% {
        text-shadow: 0 0 10px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.5), 0 0 20px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3);
    }
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin-left: 30px;
    position: relative;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s, transform 0.3s;
    padding: 8px 0;
    position: relative;
    font-size: 15px;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.nav-links a:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    transition: width 0.3s ease;
}

.nav-links a:hover:before,
.nav-links a:focus-visible:before {
    width: 100%;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--secondary-color);
}

.nav-cta-group {
    display: flex;
    align-items: center;
    margin-left: 30px;
}
.nav-links .nav-cta-group.mobile-cta {
    display: none;
    margin-left: 0;
}

.glowing-btn {
    position: relative;
    display: inline-block;
    padding: 10px 25px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    border-radius: 30px;
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.8px;
    overflow: hidden;
    box-shadow: 0 0 15px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.4); /* Fallback */
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    border: none;
    cursor: pointer;
    z-index: 1;
    font-size: 14px;
    white-space: nowrap;
}

.glowing-btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
    z-index: -1;
}

.glowing-btn:hover:before,
.glowing-btn:focus-visible:before {
    left: 100%;
}

.glowing-btn:hover,
.glowing-btn:focus-visible {
    box-shadow: 0 0 25px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.7); /* Fallback */
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    height: 21px;
    width: 30px;
    cursor: pointer;
    z-index: 1001;
    background: transparent;
    border: none;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-light);
    border-radius: 3px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Erişilebilirlik: Odak stilleri */
a:focus-visible,
button:focus-visible,
.menu-toggle:focus-visible,
.tab-link:focus-visible {
    outline: 2px solid var(--secondary-color); /* Direkt değişken kullanımı */
    outline-offset: 3px;
    box-shadow: 0 0 0 3px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3); /* Fallback */
}


/* Hero Section */
.hero {
    padding-top: calc(70px + 130px); /* Header yüksekliği (navbar.min-height) + ekstra boşluk */
    padding-bottom: 150px;
    position: relative;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--darker-bg) 100%);
    color: var(--text-light);
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1) 0%, transparent 60%); /* Fallback */
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    position: relative;
    z-index: 2;
}

.hero-subtitle {
    color: var(--secondary-color);
    font-size: 18px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
    display: block;
}

.hero-title {
    font-size: 60px;
    line-height: 1.1;
    margin-bottom: 30px;
    font-weight: 800;
    background: linear-gradient(to right, var(--text-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.hero-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
}

.hero-description {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-image {
    position: relative;
    z-index: 2;
}

.hero-image-container {
    position: relative;
    width: 100%;
    height: 450px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    background: rgba(26, 26, 26, 0.7); /* Yarı saydam, backdrop-filter için */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1); /* Fallback */
}

.hero-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 10s ease;
}

.hero-image-container:hover img {
    transform: scale(1.05);
}

.hero-image-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(10, 10, 10, 0.1), rgba(10, 10, 10, 0.7));
    z-index: 1;
    pointer-events: none;
}

.hero-badges {
    display: flex;
    margin-top: 40px;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-badge {
    display: flex;
    align-items: center;
    background: rgba(26, 26, 26, 0.7); /* Yarı saydam, backdrop-filter için */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1); /* Fallback */
    padding: 10px 20px;
    border-radius: 50px;
}

.hero-badge-icon {
    color: var(--secondary-color);
    font-size: 24px;
    margin-right: 10px;
}

.hero-badge-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-light);
}


/* Features Section */
.features {
    padding: 150px 0;
    background: linear-gradient(to bottom, var(--dark-bg), var(--darker-bg));
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* accent-color'dan bir ton kullanabiliriz */
    background: radial-gradient(circle at center, rgba(var(--accent-color-rgb, 138, 43, 226), 0.05) 0%, transparent 70%); /* Fallback */
    pointer-events: none;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
}

.section-title {
    font-size: 42px;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--text-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-subtitle {
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-gray);
    font-size: 18px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background: rgba(26, 26, 26, 0.7); /* Yarı saydam, backdrop-filter için */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1); /* Fallback */
    border-radius: 16px;
    padding: 40px 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.feature-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3); /* Fallback */
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1) 0%, transparent 100%); /* Fallback */
    z-index: -1;
    transition: background 0.3s ease;
}

.feature-card:hover::before {
    background: linear-gradient(135deg, rgba(var(--secondary-color-rgb, 0, 200, 255), 0.2) 0%, transparent 100%); /* Fallback */
}

.feature-icon {
    font-size: 42px;
    color: var(--secondary-color);
    margin-bottom: 25px;
    display: inline-block;
    text-shadow: 0 0 20px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.5); /* Fallback */
}

.feature-title {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--text-light);
    position: relative;
    display: inline-block;
}

.feature-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
}

.feature-description {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 16px;
}

/* How It Works Section */
.how-it-works {
    padding: 150px 0;
    background-color: var(--darker-bg);
    position: relative;
    overflow: hidden;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(var(--secondary-color-rgb, 0, 200, 255), 0.05) 0%, transparent 70%); /* Fallback */
    pointer-events: none;
}

.process-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-top: 80px;
    position: relative;
}

.process-step {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 20px;
}

.step-number {
    position: relative;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: bold;
    color: var(--text-light); /* Genellikle gradient üzerinde açık renk iyi durur */
    margin: 0 auto 25px auto;
    box-shadow: 0 10px 20px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3); /* Fallback */
}

 .process-container::before {
     content: '';
     position: absolute;
     top: 40px; /* step-number'ın yarısı kadar */
     left: 10%;
     right: 10%;
     height: 2px;
     background: linear-gradient(90deg, transparent, var(--secondary-color), var(--accent-color), var(--secondary-color), transparent);
     z-index: 0;
     opacity: 0.3;
 }

.step-title {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-light);
}

.step-description {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 15px;
}

/* Extension Showcase Section */
.extension-showcase {
    padding: 150px 0;
    background: linear-gradient(to bottom, var(--darker-bg), var(--primary-color));
    position: relative;
    overflow: hidden;
}

.extension-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    align-items: center;
}

.extension-image-placeholder {
    background: rgba(26, 26, 26, 0.7); /* --card-bg yarı saydam değilse direkt rgba */
    border: 1px dashed rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3); /* Fallback */
    border-radius: 16px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray);
    font-style: italic;
    text-align: center;
    padding: 20px;
    transition: border-color 0.3s ease, color 0.3s ease;
    overflow: hidden;
}

 .extension-image-placeholder img {
     display: block;
     max-width: 100%;
     max-height: 100%;
     height: auto;
     width: auto;
     object-fit: contain;
     border-radius: 12px;
}

 .extension-image-placeholder:hover {
    border-color: var(--secondary-color);
     color: var(--text-light);
}

 .extension-image-placeholder span {
     display: block;
     font-size: 18px;
 }


/* Technology Section */
.technology {
    padding: 150px 0;
    background: linear-gradient(to bottom, var(--primary-color), var(--dark-bg));
    position: relative;
    overflow: hidden;
}

.technology-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.technology-content {
    position: relative;
}

.tech-title {
    font-size: 42px;
    margin-bottom: 30px;
    background: linear-gradient(to right, var(--text-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.tech-description {
    color: var(--text-gray);
    margin-bottom: 40px;
    font-size: 18px;
    line-height: 1.7;
}

.tech-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.tech-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.tech-icon {
    color: var(--secondary-color);
    font-size: 24px;
    margin-right: 15px;
}

.tech-text {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 500;
}

.technology-image {
    position: relative;
}

.tech-img-container {
    position: relative;
    width: 100%;
    height: 500px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    background: rgba(26, 26, 26, 0.7); /* Yarı saydam, backdrop-filter için */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1); /* Fallback */
}

.tech-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tech-img-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(10, 10, 10, 0.1), rgba(10, 10, 10, 0.6));
    z-index: 1;
}

/* Advanced Security Section */
.advanced-security {
    padding: 150px 0;
    background-color: var(--dark-bg);
    position: relative;
    overflow: hidden;
}

.advanced-security::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(var(--accent-color-rgb, 138, 43, 226), 0.05) 0%, transparent 70%); /* Fallback */
    pointer-events: none;
}

.security-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 80px;
}

.security-card {
    background: rgba(26, 26, 26, 0.7); /* Yarı saydam, backdrop-filter için */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1); /* Fallback */
    border-radius: 16px;
    padding: 40px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    position: relative;
    text-align: center;
}

.security-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    border-color: rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3); /* Fallback */
}

.security-icon {
    font-size: 64px;
    margin-bottom: 20px;
    color: var(--secondary-color);
    display: block;
}

 .security-title {
    color: var(--secondary-color); /* theme.css'de --secondary-color var */
     margin-bottom: 15px;
     font-size: 22px;
}

.security-description {
    color: var(--text-gray);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 0;
    position: relative;
    z-index: 1;
}

/* Stats Section */
.stats {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--card-bg, #1a1a1a) 100%); /* card-bg fallback */
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3), transparent); /* Fallback */
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.stat-item {
    text-align: center;
    position: relative;
    padding: 0 10px;
}

 .stat-item:not(:last-child)::after {
     content: '';
     position: absolute;
     top: 20%;
     bottom: 20%;
     right: -20px; /* Gap'e göre ayarlanmalı */
     width: 1px;
     background: linear-gradient(to bottom, transparent, rgba(var(--secondary-color-rgb, 0, 200, 255), 0.2), transparent); /* Fallback */
     display: none; 
 }


.stat-number {
    font-size: 50px;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    transition: transform 0.2s ease-out; /* color çıkarıldı çünkü text-fill-color transparent */
    min-height: 60px; 
    line-height: 1.2;
}

.stat-label {
    color: var(--text-gray);
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Footer */
footer {
    background-color: var(--darker-bg);
    color: var(--text-gray);
    padding: 100px 0 40px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(var(--secondary-color-rgb, 0, 200, 255), 0.2), transparent); /* Fallback */
}

.footer-grid {
    display: grid;
     grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
}

.footer-about .logo {
    margin-bottom: 25px;
    font-size: 24px;
    /* color: var(--text-light); Zaten gradient ile belirleniyor */
     background: linear-gradient(90deg, var(--text-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
 .footer-about .logo-icon {
     font-size: 28px;
}


.footer-about p {
    color: var(--text-gray);
    max-width: 400px;
    margin-bottom: 30px;
    line-height: 1.7;
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26, 26, 26, 0.7); /* Belki var(--card-bg) eğer yarı saydam ise */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(var(--secondary-color-rgb, 0, 200, 255), 0.1); /* Fallback */
    transition: background 0.3s ease, transform 0.3s ease;
    color: var(--text-light);
    text-decoration: none;
    font-size: 18px;
}

.social-link:hover,
.social-link:focus-visible {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    transform: translateY(-3px);
}

.footer-title {
    color: var(--text-light);
    font-size: 18px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
}

.footer-links {
    list-style: none;
    padding-left: 0;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s;
    position: relative;
    padding-left: 15px;
    font-size: 14px;
}

.footer-links a::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    transition: transform 0.3s;
}

.footer-links a:hover,
.footer-links a:focus-visible {
    color: var(--text-light);
}

.footer-links a:hover::before,
.footer-links a:focus-visible::before {
    transform: translateX(5px);
}

.copyright {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.copyright p {
    color: var(--text-gray);
    font-size: 14px;
}

.copyright a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s;
}
.copyright a:hover,
.copyright a:focus-visible {
    color: var(--accent-color); /* Hover'da farklı bir renk */
}


/* VEYA (OR) Divider Style */
.divider {
    text-align: center;
    margin-top: 15px;
    margin-bottom: 15px;
    color: var(--text-gray); 
    font-weight: bold;
}


/* Profile Page Tabs */
.profile-tabs {
    display: flex;
    border-bottom: 1px solid var(--secondary-color, rgba(0,200,255,0.2)); /* Fallback, border-color değişkeni yoksa */
    margin-bottom: 30px;
}

.profile-tabs .tab-link {
    padding: 10px 20px;
    cursor: pointer;
    border: none;
    background: none;
    color: var(--text-gray);
    font-size: 16px;
    border-bottom: 3px solid transparent;
    margin-bottom: -1px; 
    transition: color 0.2s, border-color 0.2s;
}

.profile-tabs .tab-link:hover {
    color: var(--text-light);
}

.profile-tabs .tab-link.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content .profile-section {
    margin-bottom: 30px;
    padding: 25px;
    background-color: var(--card-bg); /* theme.css'den */
    border-radius: 8px;
    border: 1px solid var(--secondary-color, rgba(0,200,255,0.1)); /* Fallback */
}

.tab-content .section-title { /* Bu .section-title genel olanla karışabilir, daha spesifik yapın: .profile-section-title */
    font-size: 18px;
    color: var(--secondary-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--secondary-color, rgba(0,200,255,0.1)); /* Fallback */
}


/* Animation & Effects */
.slide-up, .fade-in {
    opacity: 0;
    visibility: hidden;
}
.slide-up.animated {
    animation: slideUp 0.8s ease forwards;
    visibility: visible;
}
.fade-in.animated {
    animation: fadeIn 1s ease forwards;
    visibility: visible;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hover Effect on Cards */
.hover-glow {
    transition: box-shadow 0.3s ease; /* all yerine spesifik */
}
.hover-glow:hover {
    box-shadow: 0 0 30px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3); /* Fallback */
}

/* Glowing Effect */
@keyframes glow {
    0% { box-shadow: 0 0 10px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3); }
    50% { box-shadow: 0 0 20px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.6); }
    100% { box-shadow: 0 0 10px rgba(var(--secondary-color-rgb, 0, 200, 255), 0.3); }
}
.glow-effect {
    animation: glow 2s infinite ease-in-out;
}

/* Gradient Text Effect */
.gradient-text {
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}


/* Responsive Design */

 @media (min-width: 992px) {
    .stat-item:not(:last-child)::after {
         display: block;
    }
    .process-container::before {
         left: 15%; /* Adım sayısına ve aralığa göre ayarlanabilir */
         right: 15%;
    }
 }


@media (max-width: 1200px) {
     .features-grid {
         grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
     }
    .hero-grid {
         gap: 40px;
     }
    .technology-grid {
         gap: 60px;
    }
}

@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
     .hero-title::after {
         left: 50%;
         transform: translateX(-50%);
     }
     .hero-description {
         margin-left: auto;
         margin-right: auto;
     }
     .hero-badges {
        justify-content: center;
     }
    .hero-image {
        margin-top: 60px;
        order: -1; 
    }

    .technology-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
     .tech-title {
         font-size: 36px;
     }
     .tech-list {
         grid-template-columns: 1fr;
         max-width: 400px;
         margin: 0 auto;
         text-align: left; 
    }
    .security-container {
         grid-template-columns: 1fr;
    }
    .tech-img-container {
        height: 400px;
    }
     .process-container::before {
         display: none;
     }
    .stats-grid {
        grid-template-columns: 1fr; /* Mobil için tek sütun daha iyi olabilir */
        gap: 50px;
    }
    .stat-item::after {
        display: none; 
    }
     .footer-grid {
         grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); /* Min genişliği biraz artırabiliriz */
         text-align: center;
     }
      .footer-about { text-align: center; }
      .footer-about .logo { justify-content: center; }
      .footer-about p { margin-left: auto; margin-right: auto; }

     .footer-title::after {
         left: 50%;
         transform: translateX(-50%);
     }
     .social-links {
         justify-content: center;
     }
     .footer-links {
        text-align: center;
         padding-left: 0;
    }
    .footer-links a::before{
        display: none; 
    }
     .footer-links a {
         padding-left: 0;
    }
}

@media (max-width: 768px) {
    .navbar {
         padding: 15px 0; /* Daha az padding mobil için */
         justify-content: space-between;
    }

    .nav-links {
        position: fixed;
        flex-direction: column;
        align-items: center;
        background: rgba(10, 10, 10, 0.98); /* Koyu arka plan */
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        top: 0;
        left: 0; /* Tamamen soldan başlasın */
        width: 100%;
        height: 100vh; /* Tam ekran yükseklik */
        padding: 100px 20px 40px 20px; /* Üstten daha fazla, yanlardan padding */
        clip-path: circle(0% at calc(100% - 45px) 45px); /* Sağ üst köşeden açılma efekti */
        z-index: 999; /* Header'ın (1000) hemen altında, menu-toggle (1001) en üstte */
        overflow-y: auto;
        display: flex;
        visibility: hidden;
        opacity: 0;
        transition: clip-path 0.6s cubic-bezier(0.77, 0, 0.175, 1), visibility 0s 0.6s, opacity 0.4s ease;
     }

    .nav-links.active {
         clip-path: circle(150% at calc(100% - 45px) 45px);
         visibility: visible;
         opacity: 1;
         transition: clip-path 0.6s cubic-bezier(0.77, 0, 0.175, 1), visibility 0s 0s, opacity 0.4s ease 0.1s;
    }

    .nav-links li {
         margin: 20px 0;
         margin-left: 0;
         opacity: 0;
         transform: translateY(20px);
         transition: opacity 0.4s ease, transform 0.4s ease, visibility 0s 0.4s; /* visibility geçişi kaldırıldı */
         visibility: hidden;
     }

    .nav-links.active li {
          opacity: 1;
          transform: translateY(0);
          visibility: visible;
          transition-property: opacity, transform; /* Sadece animasyonlu özellikleri belirt */
     }

     /* Staggered animation delays for menu items */
     .nav-links.active li:nth-child(1) { transition-delay: 0.2s; }
     .nav-links.active li:nth-child(2) { transition-delay: 0.25s; }
     .nav-links.active li:nth-child(3) { transition-delay: 0.3s; }
     .nav-links.active li:nth-child(4) { transition-delay: 0.35s; }
     .nav-links.active li:nth-child(5) { transition-delay: 0.4s; }
     .nav-links.active li:nth-child(6) { transition-delay: 0.45s; }
     .nav-links.active li.nav-cta-group.mobile-cta { transition-delay: 0.5s; }


     .nav-links a {
          font-size: 20px; /* Mobil menüde linkler daha büyük */
      }

     .nav-links.active .nav-cta-group.mobile-cta {
         display: block;
         margin-top: 30px;
      }


    .menu-toggle {
          display: flex; 
          position: relative; /* z-index'in çalışması için */
          z-index: 1001; /* nav-links'in üzerinde kalması için */
     }
    .menu-toggle.active span:nth-child(1) {
         transform: rotate(45deg) translate(5px, 6px);
     }
    .menu-toggle.active span:nth-child(2) {
          opacity: 0;
          transform: scale(0.1);
      }
     .menu-toggle.active span:nth-child(3) {
         transform: rotate(-45deg) translate(5px, -6px);
     }

    .hero {
          padding-top: calc(70px + 100px); /* Header + azaltılmış boşluk */
          padding-bottom: 100px;
      }
      .hero-title {
         font-size: 40px; /* Mobil için daha küçük */
     }
      .features-grid {
         grid-template-columns: 1fr; /* Tek sütun */
      }
     .copyright {
         flex-direction: column;
         gap: 10px;
         text-align: center;
     }
     .section-title {
         font-size: 32px; /* Mobil için daha küçük */
     }
 }

@media (max-width: 576px) {
      .navbar {
          padding: 10px 0; /* En küçük ekranlar için daha az padding */
     }
     .logo {
          font-size: 22px;
      }
     .logo-icon {
          font-size: 26px;
     }
      .glowing-btn {
         padding: 8px 20px;
          font-size: 13px;
      }
     .hero {
         padding-top: calc(70px + 70px); /* Header + daha da azaltılmış boşluk */
         padding-bottom: 80px;
     }
     .hero-title {
         font-size: 32px;
     }
     .hero-subtitle {
         font-size: 16px;
     }
     .hero-description {
         font-size: 16px;
     }
      .hero-image-container {
         height: 350px;
      }
       .hero-image-container > div > div > div:nth-child(1) { font-size: 32px; margin-bottom: 15px;}
       .hero-image-container > div > div > div:nth-child(2) { font-size: 18px; margin-bottom: 15px; }
       .hero-image-container > div > div > div:nth-child(3) { font-size: 15px; line-height: 1.5; }

      .section-title {
         font-size: 28px;
     }
     .section-subtitle {
         font-size: 16px;
     }
      .feature-card {
         padding: 30px 20px;
     }
     .feature-title, .step-title, .security-title {
         font-size: 20px;
     }
      .stat-number {
         font-size: 40px;
         min-height: 48px;
     }
     .tech-title {
         font-size: 28px;
     }
      .tech-img-container {
          height: 350px;
      }
     .tech-img-container > div > div { height: 85%; }
     .tech-img-container > div > div > div { font-size: 11px; line-height: 1.6; }
     .tech-img-container > div > div > div:last-child { overflow-y: auto; }

      .extension-image-placeholder {
          min-height: 250px;
     }
      .extension-image-placeholder span {
          font-size: 16px;
      }
      .footer-grid {
         gap: 30px; /* En küçük ekranlarda boşluğu azalt */
     }
     .footer-about { margin-bottom: 0; }
      .copyright p, .copyright a {
          font-size: 13px;
     }
 }