/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    z-index: 1000;
    padding: 16px 0;
}

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

.navbar-brand .logo {
    height: 32px;
    width: auto;
}

.navbar-nav {
    display: flex;
    gap: 40px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #8B5CF6;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 75px;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    z-index: 999;
}

.mobile-menu-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mobile-nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 10px 0;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(180deg, #ffffff 0%, #f7f8fb 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.hero-tagline {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 20px;
    color: #8B5CF6;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 30px;
    background: linear-gradient(135deg, #6b7cff 0%, #b347ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    color: #4B5563;
}

.app-download-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-block;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 8px;
    overflow: hidden;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.download-btn img {
    height: 56px; /* aynı yükseklik */
    width: auto;
    display: block;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-phone {
    max-width: 350px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 30px 60px rgba(0,0,0,0.15));
    z-index: 2;
}

.speech-bubbles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.bubble {
    position: absolute;
    width: 100px;
    height: auto;
    animation: float 6s ease-in-out infinite;
    border-radius: 20px;
}

.bubble-1 {
    top: 10%;
    left: -15%;
    animation-delay: 0s;
}

.bubble-2 {
    bottom: 20%;
    right: -10%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
}

.feature-item {
    text-align: left;
    padding: 30px;
    background: #F9FAFB;
    border-radius: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.feature-number {
    font-size: 72px;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
    opacity: 0.3;
}

.feature-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #1F2937;
}

.feature-description {
    font-size: 16px;
    line-height: 1.7;
    color: #6B7280;
}

/* Safety Section */
.safety {
    padding: 100px 0;
    background: linear-gradient(180deg, #F3F4F6 0%, #fff 100%);
}

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

.safety-image {
    display: flex;
    justify-content: center;
}

.safety-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}

.safety-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 30px;
    color: #1F2937;
    line-height: 1.2;
}

.safety-description {
    font-size: 18px;
    line-height: 1.8;
    color: #6B7280;
}

/* How it Works Section */
.how-it-works {
    padding: 100px 0;
    background-color: #fff;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.work-step {
    margin-bottom: 120px;
}

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

.reverse .step-content {
    direction: rtl;
}

.reverse .step-text {
    direction: ltr;
}

.step-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 25px;
    color: #1F2937;
    line-height: 1.2;
}

.step-description {
    font-size: 18px;
    line-height: 1.8;
    color: #6B7280;
}

.step-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.step-phone {
    max-width: 300px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1));
}

.connection-phones {
    display: flex;
    gap: 30px;
    align-items: center;
    justify-content: center;
}

.chat-phone {
    transform: translateY(20px) scale(0.9);
}

.profile-bubbles,
.connection-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.profile-bubble,
.connection-bubble,
.connection-emoji,
.connection-bubble-2 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    animation: float 4s ease-in-out infinite;
}

.profile-bubble {
    top: 10%;
    right: -20%;
}

.connection-bubble {
    top: 15%;
    left: -15%;
}

.connection-emoji {
    top: 45%;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 2s;
    background: #FCD34D;
    font-size: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.connection-bubble-2 {
    bottom: 20%;
    right: -10%;
    animation-delay: 1s;
}

/* Footer */
.footer {
    background-color: #111827;
    color: #fff;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 60px;
    align-items: start;
    margin-bottom: 40px;
}

.footer-logo-img {
    height: 35px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-company {
    text-align: center;
}

.footer-company p {
    margin-bottom: 10px;
    color: #9CA3AF;
    font-size: 14px;
    line-height: 1.6;
}

.footer-sections {
    display: flex;
    gap: 60px;
    justify-content: flex-end;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-section p,
.footer-link {
    color: #9CA3AF;
    font-size: 14px;
    margin-bottom: 10px;
    text-decoration: none;
    display: block;
}

.footer-link:hover {
    color: #fff;
}

.app-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.app-button {
    display: inline-block;
    transition: transform 0.3s ease;
}

.app-button:hover {
    transform: translateY(-2px);
}

.app-button img {
    height: 40px;
    width: auto;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: #6B7280;
    font-size: 14px;
}

/* Button Styles */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .app-download-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .safety-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .step-content,
    .reverse .step-content {
        grid-template-columns: 1fr;
        gap: 40px;
        direction: ltr;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .step-title {
        font-size: 28px;
    }
    
    .safety-title {
        font-size: 32px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-sections {
        justify-content: center;
        flex-wrap: wrap;
        gap: 40px;
    }
    
    .connection-phones {
        flex-direction: column;
        gap: 20px;
    }
    
    .chat-phone {
        transform: translateY(0);
    }
    
    .feature-number {
        font-size: 48px;
    }
}