/* -------------------------------------------------------------
   Dersata Corporate Landing Page Style System (Revised Slider & Popup)
------------------------------------------------------------- */

/* 1. Design System Tokens & Variables */
:root {
    --primary-color: #0075bf;       /* Dersata Blue */
    --secondary-color: #009f9d;     /* Dersata Teal */
    --dark-navy: #1b355a;           /* Support Form Navy */
    --bg-color: #f8fafc;            /* Light slate background */
    --card-bg: #ffffff;
    --text-main: #1e293b;           /* Slate 800 */
    --text-muted: #64748b;          /* Slate 500 */
    --border-color: #e2e8f0;        /* Slate 200 */
    --input-bg: #ffffff;
    
    --accent-green-bg: #ecfdf5;     
    --accent-green-text: #059669;   
    
    --accent-green: #10b981;        /* Emerald 500 */
    --accent-red: #ef4444;          /* Red 500 */
    
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --max-width: 1200px;
    --border-radius: 12px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.05), 0 8px 10px -6px rgba(0,0,0,0.03);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.04);
}

/* 2. Global Resets & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography elements */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.25;
}

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

button, input, textarea, select {
    font-family: inherit;
    outline: none;
}

/* Button & Nav Buttons reset */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #00609e;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 117, 191, 0.25);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: #008280;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 159, 157, 0.25);
}

.nav-link-btn, .footer-link-btn {
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-main);
    cursor: pointer;
    padding: 0.5rem 0;
    transition: var(--transition);
    position: relative;
}

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

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

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

.footer-link-btn {
    color: inherit;
    font-size: 0.95rem;
    opacity: 0.8;
}

.footer-link-btn:hover {
    opacity: 1;
    color: var(--secondary-color);
    padding-left: 4px;
}

/* 3. Header & Navigation */
.main-header {
    position: sticky;
    top: 0;
    z-index: 90;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
    padding: 1rem 0;
}

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

.logo-area {
    display: flex;
    align-items: center;
}

.logo-img {
    height: auto;
    width: auto;
    max-height: 70px;
    max-width: 280px;
    object-fit: contain;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-main);
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

.nav-login {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-register {
    padding: 0.45rem 1.25rem;
    font-size: 0.9rem;
    border-radius: 6px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--text-main);
    border-radius: 2px;
    transition: var(--transition);
}

/* 4. Slideshow Section */
.slider-section {
    position: relative;
    background: radial-gradient(circle at 80% 20%, rgba(0, 159, 157, 0.05) 0%, rgba(255, 255, 255, 0) 60%);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    width: 100%;
}

.slider-container {
    width: 100%;
    min-height: 540px;
    position: relative;
    padding: 2.5rem 0 4.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.slide {
    display: none;
    width: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slide.active {
    display: block;
    opacity: 1;
    position: relative;
    z-index: 2;
    animation: fadeInSlide 0.5s ease-in-out forwards;
}

@keyframes fadeInSlide {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Slide 1: 12 Parçalı Logo Montaj İntrosu (Logo Assembly Intro)
   ========================================================================== */
.slide-intro-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.intro-stage {
    position: relative;
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    aspect-ratio: 16/6.8;
    min-height: 380px;
    border-radius: 22px;
    background: #F5F9FC;
    border: 1px solid #DEE8F1;
    box-shadow: 0 20px 45px -20px rgba(18, 42, 68, 0.15);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.intro-stage::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(15, 143, 202, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 143, 202, 0.06) 1px, transparent 1px);
    background-size: 44px 44px;
    -webkit-mask-image: radial-gradient(60% 60% at 50% 50%, #000 30%, transparent 88%);
    mask-image: radial-gradient(60% 60% at 50% 50%, #000 30%, transparent 88%);
}

.glow-blob {
    position: absolute;
    width: 46%;
    aspect-ratio: 1;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    pointer-events: none;
}

.glow-blob.a {
    background: radial-gradient(circle, rgba(15, 143, 202, 0.35), transparent 70%);
    top: -10%;
    left: -6%;
}

.glow-blob.b {
    background: radial-gradient(circle, rgba(22, 160, 160, 0.30), transparent 70%);
    bottom: -16%;
    right: -6%;
}

.logo-wrap {
    position: relative;
    z-index: 2;
    width: 68%;
    max-width: 660px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    padding: 1.5rem 1rem;
}

.logo-svg-frame {
    width: 100%;
    overflow: visible;
}

.tagline {
    font-family: 'Poppins', 'Inter', system-ui, sans-serif;
    font-size: clamp(12px, 1.6vw, 15px);
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #0A6E9E;
    opacity: 0;
    transform: translateY(14px);
    margin: 0;
    text-align: center;
}

.intro-stage.play .tagline {
    animation: taglineIn 600ms cubic-bezier(0.22, 0.9, 0.32, 1) forwards;
    animation-delay: 2345ms;
}

@keyframes taglineIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Cube Pieces */
.piece {
    opacity: 0;
    transform-box: fill-box;
    transform-origin: 50% 50%;
    transform: translate(var(--dx), var(--dy)) rotate(var(--rot)) scale(0.3);
}

.intro-stage.play .piece {
    animation-name: pieceIn;
    animation-timing-function: cubic-bezier(0.2, 0.9, 0.28, 1.12);
    animation-fill-mode: forwards;
}

@keyframes pieceIn {
    0% {
        transform: translate(var(--dx), var(--dy)) rotate(var(--rot)) scale(0.3);
        opacity: 0;
    }
    52% {
        opacity: 1;
    }
    76% {
        transform: translate(calc(var(--dx) * 0.015), calc(var(--dy) * 0.015)) rotate(calc(var(--rot) * 0.02)) scale(1.07);
        opacity: 1;
    }
    100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
        opacity: 1;
    }
}

/* Wordmark */
.wordpiece {
    opacity: 0;
    transform: translateY(46px);
}

.intro-stage.play .wordpiece {
    animation-name: wordIn;
    animation-timing-function: cubic-bezier(0.22, 0.9, 0.28, 1);
    animation-fill-mode: forwards;
}

@keyframes wordIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Completion Flash Ring */
.flash-ring {
    opacity: 0;
    transform-box: fill-box;
    transform-origin: 50% 50%;
    transform: scale(0.4);
}

.intro-stage.play .flash-ring {
    animation: flashPulse 950ms ease-out forwards;
    animation-delay: 1625ms;
}

@keyframes flashPulse {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    35% {
        opacity: 0.65;
    }
    100% {
        opacity: 0;
        transform: scale(1.9);
    }
}

/* Idle Float */
#logoGroup {
    transform: translateY(0);
}

.intro-stage.play #logoGroup {
    animation: idleFloat 4400ms ease-in-out 2445ms infinite;
}

@keyframes idleFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* ==========================================================================
   Slide 2: Hero Section (Afiş / Monitör Görseli)
   ========================================================================== */
.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 580px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-title {
    font-size: 2.85rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.01em;
    line-height: 1.25;
    text-align: center;
}

.slide2-animated-title {
    min-height: 3.2em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.typewriter-text {
    background: linear-gradient(135deg, #0075bf 0%, #009f9d 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline;
}

.typewriter-cursor {
    color: #009f9d;
    font-weight: 300;
    margin-left: 3px;
    animation: blinkCursor 0.8s infinite;
    display: none;
}

@keyframes blinkCursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-visual {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.monitor-wrapper {
    display: inline-block;
    max-width: 100%;
    border-radius: 14px;
    overflow: hidden;
}

.monitor-screen {
    width: 100%;
    max-width: 580px;
    height: auto;
    display: block;
    border-radius: 14px;
}

/* Navigation Demo Link */
.nav-demo-link {
    color: var(--secondary-color) !important;
    font-weight: 600 !important;
}

.nav-demo-link:hover {
    color: var(--primary-color) !important;
}

/* Responsive adjustments for intro */
@media (max-width: 768px) {
    .intro-stage {
        aspect-ratio: auto;
        min-height: 280px;
        border-radius: 16px;
        padding: 1rem 0.5rem;
    }
    .logo-wrap {
        width: 90%;
        gap: 12px;
        padding: 1rem 0.5rem;
    }
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    .hero-content {
        margin: 0 auto;
    }
    .hero-title {
        font-size: 1.8rem;
    }
    .hero-visual {
        justify-content: center;
    }
}

/* 5. Under-Slider Content */
.under-slider-content {
    background-color: var(--bg-color);
}

.sub-hero-container {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding-top: 4.5rem;
    padding-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--primary-color);
    line-height: 1.6;
}

/* Quotes/Callouts styling */
.quotes-section {
    padding: 2.5rem 0;
}

.quotes-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.quote-card {
    background-color: var(--card-bg);
    padding: 2rem 2.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    font-size: 1.1rem;
    font-weight: 500;
    line-height: 1.6;
    color: #334155;
    transition: var(--transition);
}

.quote-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.quote-green {
    border-left: 6px solid var(--secondary-color);
}

.quote-blue {
    border-left: 6px solid var(--primary-color);
}

/* Features Grid */
.features-section {
    padding: 4.5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 3.5rem;
    position: relative;
    padding-bottom: 1.25rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--secondary-color);
    border-radius: 2px;
}

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

.feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 159, 157, 0.2);
}

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: rgba(0, 159, 157, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    transition: var(--transition);
}

.feature-card:hover .feature-icon-wrapper {
    background-color: var(--secondary-color);
    color: #ffffff;
    transform: rotate(5deg) scale(1.05);
}

.feature-icon-wrapper svg {
    width: 30px;
    height: 30px;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.4;
    color: var(--primary-color);
}

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

/* Comparison Section */
.comparison-section {
    padding: 4.5rem 0 6rem;
}

.comparison-card {
    background-color: var(--card-bg);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    padding: 3.5rem 3rem;
}

.comparison-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.comparison-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 3.5rem;
}

.table-responsive {
    overflow-x: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    min-width: 750px;
}

.comparison-table th, .comparison-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 1rem;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table th {
    font-weight: 600;
    color: #ffffff;
    font-family: var(--font-heading);
}

.th-feature {
    background-color: var(--primary-color);
    width: 34%;
}

.th-old {
    background-color: #64748b; 
    width: 33%;
}

.th-new {
    background-color: var(--secondary-color);
    width: 33%;
}

.comparison-table tbody tr {
    transition: var(--transition);
}

.comparison-table tbody tr:hover {
    background-color: rgba(0, 159, 157, 0.03);
}

.td-feature {
    font-weight: 600;
    color: var(--text-main);
}

.td-old {
    color: var(--text-muted);
}

.td-new {
    font-weight: 500;
    color: var(--text-main);
    background-color: rgba(0, 159, 157, 0.01);
}

.cross {
    color: var(--accent-red);
    font-weight: 700;
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.check {
    color: var(--accent-green);
    font-weight: 700;
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

/* 6. Footer Section */
.main-footer {
    background-color: #0f172a; 
    color: #cbd5e1;
    padding: 5rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1.15rem;
    margin-bottom: 1.75rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 35px;
    height: 3px;
    background-color: var(--secondary-color);
    border-radius: 1.5px;
}

.brand-col .footer-logo {
    height: auto;
    width: auto;
    max-height: 70px;
    max-width: 280px;
    object-fit: contain;
    margin-bottom: 1.5rem;
    filter: brightness(0) invert(1);
}

.brand-col p {
    font-size: 0.95rem;
    line-height: 1.7;
    opacity: 0.75;
}

.links-col ul {
    list-style: none;
}

.links-col li {
    margin-bottom: 0.9rem;
}

.links-col a {
    font-size: 0.95rem;
    opacity: 0.8;
}

.links-col a:hover {
    opacity: 1;
    color: var(--secondary-color);
    padding-left: 4px;
}

.contact-details-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact-details-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    width: 20px;
    height: 20px;
    color: var(--secondary-color);
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.contact-text, .contact-details-list a {
    font-size: 0.95rem;
    opacity: 0.85;
    line-height: 1.5;
}

.contact-details-list a:hover {
    opacity: 1;
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-legal-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.footer-legal-links a {
    opacity: 0.75;
}

.footer-legal-links a:hover {
    opacity: 1;
    color: var(--secondary-color);
    text-decoration: underline;
}

.footer-legal-links .sep {
    color: rgba(255, 255, 255, 0.2);
}

.footer-bottom p {
    font-size: 0.9rem;
    opacity: 0.5;
}

/* 7. Modal Overlay and Pop-up Form Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* Pop-up Support modal container */
.support-modal-wrapper {
    position: relative;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    transform: translateY(30px);
    transition: var(--transition);
}

.modal-overlay.active .support-modal-wrapper {
    transform: translateY(0);
}

.modal-close-btn {
    position: absolute;
    top: 15px;
    right: 25px;
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 2.25rem;
    font-weight: 300;
    cursor: pointer;
    z-index: 1010;
    line-height: 1;
    transition: var(--transition);
}

.modal-close-btn:hover {
    color: var(--secondary-color);
    transform: scale(1.15);
}

/* Card Form style in popup */
.support-form-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.form-header {
    background-color: var(--dark-navy);
    color: #ffffff;
    padding: 2rem 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form-header-content h2 {
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.form-header-content p {
    font-size: 0.9rem;
    opacity: 0.85;
}

.form-domain {
    background-color: rgba(255, 255, 255, 0.12);
    padding: 0.4rem 1.1rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.support-form {
    padding: 2.5rem 2.5rem;
}

.form-section {
    margin-bottom: 2rem;
}

.form-section-title {
    font-size: 1.15rem;
    color: var(--dark-navy);
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0.6rem;
    margin-bottom: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

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

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #475569;
}

.form-group input, .form-group textarea {
    padding: 0.8rem 1rem;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background-color: var(--input-bg);
    color: var(--text-main);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 117, 191, 0.15);
}

.form-actions {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
}

.btn-submit {
    min-width: 240px;
    padding: 0.85rem 2rem;
    font-size: 1rem;
    background-color: var(--dark-navy);
}

.btn-submit:hover {
    background-color: #12243d;
    box-shadow: 0 4px 12px rgba(27, 53, 90, 0.25);
}

.form-footer-credits {
    background-color: #f8fafc;
    border-top: 1px solid var(--border-color);
    padding: 1.25rem 2.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-footer-credits a {
    color: var(--primary-color);
    font-weight: 500;
}

.form-footer-credits a:hover {
    text-decoration: underline;
}

.form-footer-credits .sep {
    color: #cbd5e1;
}

/* Success Modal Styles */
.success-modal-card {
    background-color: var(--card-bg);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    padding: 3rem 2.5rem;
    max-width: 480px;
    width: 90%;
    text-align: center;
    transform: translateY(20px);
    transition: var(--transition);
    position: relative;
}

.modal-overlay.active .success-modal-card {
    transform: translateY(0);
}

.success-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background-color: #ecfdf5;
    color: var(--accent-green);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2.25rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

.success-modal-card h3 {
    font-size: 1.5rem;
    color: var(--dark-navy);
    margin-bottom: 0.75rem;
}

.success-modal-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.success-modal-card .btn {
    width: 100%;
    padding: 0.85rem 2rem;
}

/* 8. Media Queries (Enhanced Responsive Layouts) */

@media (max-width: 1100px) {
    .quick-features-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }
    
    .slider-container {
        min-height: 480px;
    }
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }
    
    .brand-col {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.1rem;
    }

    /* Header */
    .main-header {
        padding: 0.6rem 0;
    }
    
    .logo-img {
        max-height: 42px;
        max-width: 170px;
    }
    
    .mobile-menu-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: #ffffff;
        box-shadow: -5px 0 25px rgba(0, 0, 0, 0.15);
        flex-direction: column;
        align-items: stretch;
        padding: 5rem 1.75rem 2rem;
        gap: 1.25rem;
        transition: var(--transition);
        border-left: 1px solid var(--border-color);
        z-index: 1000;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .main-nav .nav-link-btn,
    .main-nav .nav-link {
        font-size: 1.05rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--border-color);
        text-align: left;
    }
    
    .main-nav .btn {
        width: 100%;
        padding: 0.75rem;
        margin-top: 0.5rem;
        font-size: 1rem;
    }
    
    /* Slider & Hero */
    .slider-container {
        min-height: auto;
        padding: 1.5rem 0 3rem;
    }
    
    .slide {
        padding: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 1.75rem;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 1.55rem;
        line-height: 1.3;
    }
    
    .hero-visual {
        justify-content: center;
        width: 100%;
    }
    
    .monitor-screen {
        max-width: 100%;
        height: auto;
    }

    /* Slide 2: 8 Quick Cards in 2x4 Clean Mobile Grid */
    .quick-features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        max-width: 100%;
        padding: 0 0.25rem;
    }
    
    .quick-card {
        padding: 1rem 0.6rem;
        border-radius: 10px;
    }
    
    .quick-icon-circle {
        width: 46px;
        height: 46px;
        margin-bottom: 0.6rem;
    }
    
    .quick-icon-circle svg {
        width: 24px;
        height: 24px;
    }
    
    .quick-card-title {
        font-size: 0.82rem;
        line-height: 1.25;
    }

    .slider-dots {
        bottom: 0.75rem;
    }

    /* Sub Hero & Quotes */
    .sub-hero-container {
        padding-top: 2.5rem;
        padding-bottom: 1rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
        line-height: 1.55;
    }
    
    .quotes-section {
        padding: 1.5rem 0;
    }
    
    .quotes-container {
        gap: 1rem;
    }

    .quote-card {
        padding: 1.25rem 1.25rem;
        font-size: 0.92rem;
        line-height: 1.55;
    }
    
    /* Features 9 Grid */
    .features-section {
        padding: 2.5rem 0;
    }
    
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
        padding-bottom: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .feature-card {
        padding: 1.5rem 1.25rem;
    }

    .feature-icon-wrapper {
        width: 50px;
        height: 50px;
        margin-bottom: 1rem;
    }

    .feature-card h3 {
        font-size: 1.1rem;
    }

    .feature-card p {
        font-size: 0.9rem;
    }
    
    /* Comparison Table (Fits 100% on Mobile with zero overflow) */
    .comparison-section {
        padding: 2rem 0 3rem;
    }
    
    .comparison-card {
        padding: 1.25rem 0.5rem;
        border-radius: 12px;
    }
    
    .comparison-title {
        font-size: 1.25rem;
        padding: 0 0.5rem;
    }
    
    .comparison-subtitle {
        font-size: 0.85rem;
        margin-bottom: 1.25rem;
        padding: 0 0.5rem;
    }

    .table-responsive {
        overflow-x: hidden;
        width: 100%;
        border-radius: 8px;
    }

    .comparison-table {
        min-width: 100%;
        width: 100%;
        table-layout: fixed;
    }

    .th-feature, .td-feature {
        width: 38%;
    }

    .th-old, .td-old {
        width: 31%;
    }

    .th-new, .td-new {
        width: 31%;
    }

    .comparison-table th {
        padding: 0.6rem 0.35rem;
        font-size: 0.72rem;
        line-height: 1.2;
        text-align: center;
    }

    .comparison-table th.th-feature {
        text-align: left;
        padding-left: 0.5rem;
    }

    .comparison-table td {
        padding: 0.6rem 0.35rem;
        font-size: 0.72rem;
        line-height: 1.35;
        word-break: break-word;
    }

    .comparison-table td.td-feature {
        font-size: 0.74rem;
        font-weight: 700;
        padding-left: 0.5rem;
    }

    .cross, .check {
        font-size: 0.85rem;
        margin-right: 0.2rem;
        display: inline-block;
    }
    
    /* Support Modal Popup on Mobile */
    .support-modal-wrapper {
        width: 94%;
        max-height: 90vh;
        border-radius: 10px;
    }
    
    .form-header {
        padding: 1.25rem 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .form-header-content h2 {
        font-size: 1.3rem;
    }
    
    .form-domain {
        align-self: flex-start;
        font-size: 0.8rem;
    }
    
    .support-form {
        padding: 1.25rem 1rem;
    }
    
    .form-section-title {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 0.85rem;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }

    .form-group input, .form-group textarea {
        font-size: 16px; /* Prevents auto-zoom on iOS */
        padding: 0.7rem 0.85rem;
    }
    
    .btn-submit {
        width: 100%;
        min-width: unset;
    }

    .form-footer-credits {
        padding: 1rem;
        flex-direction: column;
        gap: 0.4rem;
        font-size: 0.8rem;
        text-align: center;
    }
    
    .form-footer-credits .sep {
        display: none;
    }
    
    /* Footer */
    .main-footer {
        padding: 3rem 0 1.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 2.5rem;
    }
    
    .brand-col {
        grid-column: span 1;
    }
    
    .footer-legal-links {
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-legal-links .sep {
        display: none;
    }

    .modal-close-btn {
        top: 10px;
        right: 12px;
        font-size: 2rem;
        color: #ffffff;
    }
}

/* Burger menu animation helper class */
.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-8.5px) rotate(-45deg);
}

@media (max-width: 420px) {
    .comparison-card {
        padding: 1rem 0.25rem;
    }
    
    .comparison-table th {
        font-size: 0.65rem;
        padding: 0.5rem 0.2rem;
    }

    .comparison-table td {
        font-size: 0.65rem;
        padding: 0.5rem 0.2rem;
    }

    .comparison-table td.td-feature {
        font-size: 0.67rem;
    }
}

/* =============================================================
   10. SIKÇA SORULAN SORULAR VE BİLGİ REHBERİ (FAQ SECTION)
   ============================================================= */
.faq-section {
    padding: 5rem 0 4rem;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-top: 1px solid var(--border-color);
}

.faq-header-wrapper {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.faq-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(0, 117, 191, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.faq-main-title {
    font-size: 2.1rem;
    color: var(--text-main);
    margin-bottom: 0.75rem;
}

.faq-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
}

.faq-accordion {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.faq-item {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.faq-item:hover {
    border-color: #cbd5e1;
    box-shadow: var(--shadow-md);
}

.faq-item.active {
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(0, 117, 191, 0.08);
}

.faq-trigger {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 1.35rem 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 1.12rem;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition);
}

.faq-trigger:hover {
    color: var(--primary-color);
}

.faq-item.active .faq-trigger {
    color: var(--primary-color);
    background-color: #f8fafc;
}

.faq-icon-pill {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    min-width: 32px;
    border-radius: 50%;
    background: #f1f5f9;
    color: var(--text-muted);
    transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.faq-item.active .faq-icon-pill {
    transform: rotate(180deg);
    background: var(--primary-color);
    color: #ffffff;
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
    padding: 0 1.75rem;
    color: #334155;
    font-size: 0.98rem;
    line-height: 1.7;
    background: #ffffff;
}

.faq-item.active .faq-content {
    max-height: 1200px;
    padding: 1.25rem 1.75rem 1.75rem;
    border-top: 1px solid #f1f5f9;
}

.faq-intro-p {
    margin-bottom: 1rem;
    color: #475569;
}

.faq-steps-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin: 1rem 0;
    padding-left: 0;
}

.faq-steps-list li {
    position: relative;
    padding-left: 2.2rem;
    color: #334155;
}

.faq-step-num {
    position: absolute;
    left: 0;
    top: 2px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #e0f2fe;
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.faq-bullets-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin: 1rem 0;
    padding-left: 0;
}

.faq-bullets-list li {
    position: relative;
    padding-left: 1.75rem;
    color: #334155;
}

.faq-bullet-icon {
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--secondary-color);
    font-size: 1.1rem;
    font-weight: bold;
}

@media (max-width: 768px) {
    .faq-section {
        padding: 3.5rem 0 2.5rem;
    }
    
    .faq-main-title {
        font-size: 1.5rem;
    }
    
    .faq-trigger {
        padding: 1.1rem 1.25rem;
        font-size: 1rem;
    }
    
    .faq-item.active .faq-content {
        padding: 1rem 1.25rem 1.25rem;
    }
}