:root {
    /* Colors */
    --color-primary: #0E233F; /* Midnight Blue */
    --color-accent: #C0C0C0;  /* Lüks Gümüş */
    --color-bg-light: #F8F9FA;
    --color-bg-white: #FFFFFF;
    --color-text: #333333;    /* Dark Charcoal */
    --color-text-light: #FFFFFF;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions */
    --transition-fast: 0.3s ease;
}

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

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    max-width: 100%;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg-light);
    line-height: 1.6;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(14, 35, 63, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    transition: background var(--transition-fast), padding var(--transition-fast);
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo img {
    max-height: 70px;
    object-fit: contain;
}

.logo-text {
    color: var(--color-bg-white);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 28px;
    letter-spacing: 2px;
}

.menu-links {
    display: flex;
    gap: 2.5rem;
    margin-left: auto;
    margin-right: 2.5rem;
}

.menu-links a {
    color: var(--color-bg-white);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: color var(--transition-fast);
    position: relative;
}

.menu-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-fast);
}

.menu-links a:hover {
    color: var(--color-accent);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Buttons */
.btn-teklif {
    background-color: var(--color-accent);
    color: var(--color-primary);
    padding: 0.75rem 1.75rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-family: var(--font-heading);
    transition: all var(--transition-fast);
    box-shadow: 0 4px 15px rgba(192, 192, 192, 0.2);
}

.btn-teklif:hover {
    background-color: #E0E0E0; /* Lighter silver for hover */
    box-shadow: 0 0 20px rgba(192, 192, 192, 0.6);
    transform: translateY(-2px);
}

.btn-teklif-mobile {
    display: block;
    background-color: var(--color-accent);
    color: var(--color-primary);
    padding: 1rem;
    text-align: center;
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    border-radius: 6px;
}

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

.hamburger span {
    width: 100%;
    height: 3px;
    background-color: var(--color-bg-white);
    border-radius: 10px;
    transition: all var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-primary);
    display: flex;
    flex-direction: column;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-in-out, padding 0.4s ease-in-out;
}

.mobile-menu.active {
    max-height: 400px;
    padding: 1rem 2rem 2rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu a {
    color: var(--color-bg-white);
    text-decoration: none;
    padding: 1rem 0;
    font-size: 1.1rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-menu a:last-child {
    border-bottom: none;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(14, 35, 63, 0.95) 0%, rgba(20, 40, 70, 0.8) 100%);
    padding-top: 160px; /* Breathe room for luxury aesthetic */
    padding-bottom: 80px;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(14, 35, 63, 0.9) 0%, rgba(14, 35, 63, 0.3) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: var(--color-text-light);
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-text p {
    font-size: 1.125rem;
    opacity: 0.85;
    max-width: 500px;
    font-weight: 300;
}

/* Glassmorphism Quote Form */
.quote-engine {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
    height: auto;
    max-height: none;
    width: 100%;
    max-width: 500px;
    box-sizing: border-box;
}

.quote-engine-header h2 {
    color: var(--color-bg-white);
    font-size: 1.5rem;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
}

.quote-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.quote-form > .form-group:nth-child(3) {
    grid-column: 1 / -1;
}

.form-row {
    grid-column: 1 / -1;
    display: grid;
    gap: 15px;
}

.form-row:nth-child(4) {
    grid-template-columns: 1fr 1fr;
}

.form-row:nth-child(4) .form-group:nth-child(3) {
    grid-column: 1 / -1;
}

.form-row:nth-child(5) {
    grid-template-columns: 1fr 1fr;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--color-bg-white);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    width: 100%;
    box-sizing: border-box;
    padding: 1rem 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    color: var(--color-bg-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-group input:focus,
.form-group select:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
}

.form-group select option {
    background-color: var(--color-primary);
    color: var(--color-bg-white);
}

.btn-submit {
    grid-column: 1 / -1;
    width: 100%;
    box-sizing: border-box;
    background-color: var(--color-accent);
    color: var(--color-primary);
    border: none;
    padding: 1.125rem;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: 1rem;
    box-shadow: 0 4px 15px rgba(192, 192, 192, 0.2);
}

.btn-submit:hover {
    background-color: #E0E0E0;
    box-shadow: 0 0 20px rgba(192, 192, 192, 0.5);
    transform: translateY(-2px);
}

/* About Section */
.about-section {
    background-color: var(--color-bg-white);
    padding: 6rem 0;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content h2 {
    color: var(--color-primary);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--color-text);
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.85;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.stat-box {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--color-bg-white);
    padding: 1.5rem 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.about-icon {
    width: 40px;
    height: 40px;
    color: var(--color-accent);
}

.stat-box h4 {
    color: var(--color-primary);
    font-size: 1.2rem;
    font-weight: 600;
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

/* Services Section */
.services-section {
    background-color: var(--color-bg-light);
    padding: 6rem 0;
}

.services-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background-color: var(--color-bg-white);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.02);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem auto;
    color: var(--color-accent);
    background-color: rgba(192, 192, 192, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.service-card h3 {
    color: var(--color-primary);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--color-text);
    opacity: 0.8;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Service Quote Button */
.service-quote-btn {
    display: inline-flex;
    align-items: center;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    margin-top: 1.25rem;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.service-quote-btn span {
    display: inline-block;
    margin-left: 6px;
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}

.service-quote-btn:hover {
    color: #1a4175; /* Daha parlak lacivert */
}

.service-quote-btn:hover span {
    transform: translateX(5px);
}

@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* Features Section */
.features {
    background-color: var(--color-bg-white);
    padding: 6rem 0;
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    color: var(--color-primary);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.section-header p {
    color: var(--color-text);
    font-size: 1.125rem;
    opacity: 0.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.feature-card {
    background-color: var(--color-bg-white);
    padding: 3rem 2rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: rgba(192, 192, 192, 0.2);
}

.icon-wrapper {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

.feature-icon {
    color: var(--color-primary);
    transition: color 0.4s ease;
}

.feature-card:hover .feature-icon {
    color: var(--color-accent);
}

.feature-card h3 {
    color: var(--color-primary);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--color-text);
    font-size: 1rem;
    opacity: 0.8;
    line-height: 1.6;
}

/* Process Section */
.process {
    background-color: var(--color-bg-white);
    padding: 6rem 0;
}

.process-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: rgba(0, 0, 0, 0.05);
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item {
    padding: 15px 50px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.timeline-item.left {
    left: 0;
}

.timeline-item.right {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    width: 24px;
    height: 24px;
    right: -12px;
    background-color: var(--color-bg-white);
    border: 4px solid var(--color-primary);
    top: 35px;
    border-radius: 50%;
    z-index: 1;
    transition: all 0.4s ease;
}

.timeline-item.right .timeline-dot {
    left: -12px;
}

.timeline-item:hover .timeline-dot {
    border-color: var(--color-accent);
    background-color: var(--color-bg-white);
    box-shadow: 0 0 15px rgba(192, 192, 192, 0.4);
    transform: scale(1.2);
}

.timeline-content {
    padding: 2.5rem;
    background-color: var(--color-bg-white);
    position: relative;
    border-radius: 16px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s ease;
    z-index: 2;
}

.timeline-item:hover .timeline-content {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
}

.timeline-content h3 {
    color: var(--color-primary);
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 2;
}

.timeline-content p {
    color: var(--color-text);
    font-size: 1rem;
    opacity: 0.8;
    position: relative;
    z-index: 2;
    line-height: 1.6;
}

.watermark {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: -10px;
    font-size: 8rem;
    font-weight: 800;
    color: var(--color-accent);
    opacity: 0.03;
    z-index: 1;
    font-family: var(--font-heading);
    line-height: 1;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.timeline-item:hover .watermark {
    opacity: 0.08;
}

/* Testimonials Section */
.testimonials {
    background-color: var(--color-bg-light);
    padding: 6rem 0;
}

.testimonials-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.testimonial-card {
    background-color: var(--color-bg-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

.stars {
    display: flex;
    gap: 4px;
    margin-bottom: 1.5rem;
}

.star-icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.quote {
    font-family: var(--font-body);
    font-style: italic;
    font-weight: 300;
    color: #444;
    font-size: 1.05rem;
    line-height: 1.7;
    flex-grow: 1;
    margin-bottom: 2rem;
}

.customer-info h4 {
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.customer-info span {
    color: #888;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Premium Review Form */
.review-form-container {
    margin-top: 4rem;
    padding: 2.5rem;
    background: var(--color-bg-white);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.premium-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.form-row-premium {
    display: flex;
    gap: 1rem;
}

.form-row-premium input,
.premium-form textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 8px;
    outline: none;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color 0.3s ease;
    background: #fdfdfd;
}

.form-row-premium input:focus,
.premium-form textarea:focus {
    border-color: var(--color-primary);
}

.interactive-stars-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 0.5rem 0;
}

.interactive-stars-container span {
    font-weight: 600;
    color: var(--color-primary);
}

.interactive-stars {
    display: flex;
    gap: 6px;
}

.star-icon.interactive {
    width: 24px;
    height: 24px;
    cursor: pointer;
    color: #ddd;
    transition: color 0.2s ease, transform 0.2s ease;
}

.star-icon.interactive:hover,
.star-icon.interactive.active {
    color: var(--color-accent);
}

.star-icon.interactive:active {
    transform: scale(0.9);
}

.btn-submit-premium {
    background-color: var(--color-primary);
    color: var(--color-accent);
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit-premium:hover {
    background-color: #0c1c30;
    box-shadow: 0 5px 15px rgba(14, 35, 63, 0.2);
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-bg-white);
    padding: 5rem 0 0 0;
    position: relative;
    overflow: hidden;
}

/* Easter Egg Truck */
#easter-egg-truck {
    position: absolute;
    bottom: -12px;
    left: -200px;
    display: flex;
    align-items: flex-end;
    opacity: 0;
    z-index: 10;
    transition: opacity 0.5s ease;
}

.truck-wrapper {
    position: relative;
    display: inline-block;
    z-index: 2;
}

.truck-base {
    max-height: 80px;
    width: auto;
    display: block;
    position: relative;
    z-index: 2;
}

.truck-logo {
    position: absolute;
    top: 45%;
    left: 40%;
    transform: translate(-50%, -50%);
    width: 65%; 
    height: auto;
    max-height: 80%;
    object-fit: contain;
    z-index: 3;
}

/* Dust Effect inside the main container */
.dust {
    position: absolute;
    background-color: rgba(200, 200, 200, 0.4);
    border-radius: 50%;
    z-index: 1;
    opacity: 0;
    filter: blur(4px);
}

.dust-1 {
    width: 25px;
    height: 15px;
    left: 5px;
    bottom: 0px; 
}

.dust-2 {
    width: 35px;
    height: 20px;
    left: -10px;
    bottom: -2px;
}

#easter-egg-truck.drive {
    opacity: 1;
    animation: driveTruck 8s linear forwards;
}

#easter-egg-truck.drive .dust-1 {
    animation: dustBlow 1.5s infinite 0s;
}

#easter-egg-truck.drive .dust-2 {
    animation: dustBlow 1.8s infinite 0.2s;
}

@keyframes driveTruck {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(100vw + 500px)); }
}

@keyframes dustBlow {
    0% { transform: translateX(0) scale(0.5); opacity: 0; }
    30% { opacity: 0.6; }
    100% { transform: translateX(-40px) scale(1.5) translateY(-10px); opacity: 0; }
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    margin-top: 1.5rem;
    opacity: 0.8;
    line-height: 1.8;
    max-width: 350px;
}

.footer-links h3, .footer-contact h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--color-bg-white);
    font-weight: 600;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: var(--color-bg-white);
    opacity: 0.8;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-accent);
    opacity: 1;
    padding-left: 5px;
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-list li {
    opacity: 0.8;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.footer-icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.social-icons {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

.social-icons a {
    color: var(--color-accent);
    transition: transform var(--transition-fast);
}

.social-icons a:hover {
    transform: scale(1.2);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 0;
    text-align: center;
    opacity: 0.6;
    font-size: 0.9rem;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.tooltip {
    position: absolute;
    right: 80px;
    background-color: var(--color-bg-white);
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transform: translateX(10px);
}

.whatsapp-float:hover .tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding-top: 4rem;
        padding-bottom: 4rem;
    }
    
    .hero-text {
        text-align: center;
    }

    .hero-text p {
        margin: 0 auto;
    }

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

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .menu-links {
        display: none;
    }

    .btn-teklif {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .quote-engine {
        padding: 1.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    /* Process Timeline Responsive */
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 80px;
        padding-right: 0;
        margin-bottom: 1.5rem;
    }
    
    .timeline-item.right {
        left: 0;
    }
    
    .timeline-dot, .timeline-item.right .timeline-dot {
        left: 19px;
        right: auto;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }

    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-white);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

.preloader-logo {
    width: 150px;
    animation: pulseLogo 1.5s infinite alternate ease-in-out;
}

@keyframes pulseLogo {
    0% { transform: scale(0.95); opacity: 0.7; }
    100% { transform: scale(1.05); opacity: 1; }
}

/* Scroll To Top Button */
#scrollTopBtn {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-accent);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

#scrollTopBtn.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

#scrollTopBtn:hover {
    background-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

@media (max-width: 992px) {
    #scrollTopBtn {
        bottom: 90px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}