/* General Reset & Variables */
:root {
    --primary-blue: #0077CC;
    --secondary-green: #33A033;
    --accent-turquoise: #00C0EE;
    --background-white: #F8F8F8;
    --background-light-blue: #F0F8FF;
    --background-light-green-blue: #E8F8FF;
    --background-light-beige: #FFF8DC;
    --text-dark: #333333;
    --text-medium: #666666;
    --footer-bg: #222222;
    --footer-text: #EEEEEE;
    --border-radius: 8px;
    --transition-speed: 0.3s;
    --shadow: 0 4px 15px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 25px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background-color: #fff;
    line-height: 1.6;
    scroll-behavior: smooth;
}

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

.flex-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.2em;
    font-weight: 700;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    color: var(--text-medium);
    font-size: 1.1em;
    margin-bottom: 40px;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background-color: var(--primary-blue);
    color: #fff;
    padding: 12px 25px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1em;
    font-weight: 700;
    cursor: pointer;
    transition: background-color var(--transition-speed) ease, transform var(--transition-speed) ease;
    text-decoration: none;
}

.btn-primary:hover {
    background-color: #005bb5;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 15px 35px;
    font-size: 1.1em;
}

.btn-header {
    background-color: var(--accent-turquoise);
    white-space: nowrap;
}

.btn-header:hover {
    background-color: #00a0c0;
}

/* HEADER */
.site-header {
    background-color: #fff;
    padding: 15px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header .logo a {
    font-size: 1.6em;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 25px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 600;
    font-size: 0.95em;
    transition: color var(--transition-speed) ease;
}

.main-nav a:hover {
    color: var(--primary-blue);
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 5px;
    margin-right: 10px;
}

.lang-btn {
    background: none;
    border: 1.5px solid var(--text-medium);
    color: var(--text-medium);
    padding: 4px 10px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    font-weight: 700;
    font-size: 0.85em;
}

.lang-btn.active,
.lang-btn:hover {
    background-color: var(--primary-blue);
    color: #fff;
    border-color: var(--primary-blue);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8em;
    cursor: pointer;
    color: var(--text-dark);
}

/* HERO SECTION */
.hero-section {
    padding: 100px 0;
    min-height: 75vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #F0F8FF 0%, #E8F0FF 100%);
}

.hero-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.hero-text {
    flex: 1;
}

.hero-title {
    font-size: 3em;
    font-weight: 700;
    margin-bottom: 25px;
    line-height: 1.15;
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: 1.2em;
    color: var(--text-medium);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.animation-container {
    width: 100%;
    max-width: 450px;
    height: 300px;
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-hover);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--text-medium);
}

.anim-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* PROBLEM/SOLUTION SECTION */
.problem-solution-section {
    padding: 80px 0;
    background-color: var(--background-light-blue);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.problem-card,
.solution-item {
    background: #fff;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.problem-card:hover,
.solution-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.problem-card .icon,
.solution-item .icon {
    font-size: 2.5em;
    color: var(--primary-blue);
    margin-bottom: 20px;
    display: block;
}

.solution-icon {
    color: var(--accent-turquoise) !important;
}

.problem-card h4,
.solution-item h4 {
    font-size: 1.15em;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.problem-card p,
.solution-item p {
    color: var(--text-medium);
    font-size: 0.95em;
}

/* HOW IT WORKS */
.how-it-works-section {
    padding: 80px 0;
    background-color: #fff;
}

.steps-container {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    text-align: center;
    position: relative;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 12%;
    right: 12%;
    height: 3px;
    background: linear-gradient(to right, var(--primary-blue), var(--accent-turquoise));
    opacity: 0.4;
    z-index: 0;
}

.step {
    flex: 1;
    padding: 20px 15px;
    z-index: 1;
    position: relative;
    background: var(--background-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.step-number {
    font-size: 3em;
    font-weight: 700;
    color: var(--primary-blue);
    opacity: 0.15;
    line-height: 1;
    margin-bottom: 10px;
}

.step .icon {
    font-size: 2em;
    color: var(--accent-turquoise);
    margin-bottom: 15px;
    display: block;
}

.step h3 {
    font-size: 1em;
    margin-bottom: 10px;
    color: var(--text-dark);
    letter-spacing: 0.5px;
}

.step p {
    font-size: 0.9em;
    color: var(--text-medium);
}

/* SERVICES SECTION */
.services-section {
    padding: 80px 0;
    background-color: var(--background-light-green-blue);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
    margin-bottom: 60px;
}

.service-card {
    background: #fff;
    padding: 30px 25px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.service-card .icon {
    font-size: 2.2em;
    color: var(--primary-blue);
    margin-bottom: 18px;
    display: block;
}

.service-card h4 {
    font-size: 1.05em;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.service-card p {
    font-size: 0.9em;
    color: var(--text-medium);
}

.cta-section {
    text-align: center;
    padding: 50px 0 0;
}

.cta-section h3 {
    font-size: 1.8em;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.cta-section p {
    font-size: 1.05em;
    color: var(--text-medium);
    margin-bottom: 30px;
}

/* ABOUT SECTION */
.about-section {
    padding: 80px 0;
    background-color: var(--background-light-beige);
}

.about-content {
    display: flex;
    gap: 50px;
    align-items: center;
    margin-bottom: 40px;
}

.about-text {
    flex: 1;
}

.about-text p {
    margin-bottom: 18px;
    color: var(--text-medium);
    font-size: 1.05em;
    line-height: 1.8;
}

.about-visual {
    flex: 1;
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow);
    min-height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-badge {
    text-align: center;
    margin-top: 20px;
    padding: 25px 40px;
    border-radius: var(--border-radius);
    background-color: #fff;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.security-badge .icon {
    font-size: 2.5em;
    color: var(--secondary-green);
}

.security-badge p {
    margin: 0;
    color: var(--text-medium);
}

/* CONTACT SECTION */
.contact-section {
    padding: 80px 0;
    background: #fff;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1em;
    font-family: 'Inter', sans-serif;
    transition: border-color var(--transition-speed) ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.contact-form .btn-primary {
    width: 100%;
    text-align: center;
    margin-top: 10px;
}

/* FOOTER */
.site-footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 50px 0 0;
}

.footer-content {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
    padding-bottom: 40px;
}

.footer-col {
    flex: 1;
    min-width: 160px;
}

.footer-col h4 {
    color: #fff;
    font-size: 1.1em;
    margin-bottom: 18px;
}

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

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: var(--footer-text);
    text-decoration: none;
    font-size: 0.95em;
    transition: color var(--transition-speed) ease;
}

.footer-col a:hover {
    color: var(--accent-turquoise);
}

.footer-col p {
    font-size: 0.95em;
    color: #aaa;
    margin-bottom: 8px;
}

.footer-col i {
    margin-right: 8px;
}

.logo-footer {
    font-size: 1.4em;
    font-weight: 700;
    color: #fff;
    margin-bottom: 15px;
}

.footer-bottom {
    text-align: center;
    padding: 18px 0;
    border-top: 1px solid rgba(255,255,255,0.12);
    font-size: 0.88em;
    color: #888;
}

/* LANGUAGE DISPLAY */
.lang-tr {
    display: none;
}

/* RESPONSIVE */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    .hero-title {
        font-size: 2.4em;
    }
    .about-content {
        flex-direction: column;
    }
    .about-text {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .main-nav ul,
    .header-cta {
        display: none;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .steps-container {
        flex-direction: column;
    }
    .steps-container::before {
        display: none;
    }
    .hero-title {
        font-size: 2em;
    }
    .section-title {
        font-size: 1.7em;
    }
    .security-badge {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 60px 0;
    }
    .hero-title {
        font-size: 1.7em;
    }
    .btn-lg {
        padding: 13px 25px;
        font-size: 1em;
    }
    .footer-col {
        min-width: 100%;
    }
}