/* --- GENEL AYARLAR --- */
:root {
    /* Premium Palette */
    --primary: #0F52BA;
    /* Sapphire Blue - Professional & Trustworthy */
    --primary-dark: #0a3d8f;
    --secondary: #FFBF00;
    /* Amber/Gold - Energetic Accent */
    --accent-red: #E63946;
    --dark: #1B263B;
    /* Deep Navy - Better than pure black */
    --gray: #6C757D;
    --light-bg: #F8F9FA;
    --white: #FFFFFF;

    --shadow-sm: 0 5px 15px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 15px 35px rgba(15, 82, 186, 0.1);
    --radius: 12px;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

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

/* --- BUTONLAR --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 34px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn i {
    font-size: 1.1em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 5px 15px rgba(15, 82, 186, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(15, 82, 186, 0.4);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: white;
}

.btn-white {
    background-color: white;
    color: var(--primary);
    padding: 16px 45px;
    font-size: 1.1rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
    background-color: #f1f1f1;
    transform: translateY(-3px);
}

/* --- NAVBAR --- */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: 0.3s;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar.scrolled {
    padding: 15px 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.5px;
}

.dot {
    color: var(--primary);
    font-size: 2.2rem;
    line-height: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 35px;
}

.nav-links a {
    font-weight: 500;
    color: var(--gray);
    font-size: 0.95rem;
    position: relative;
}

.nav-links a:not(.btn-nav):hover {
    color: var(--primary);
}

.nav-links a:not(.btn-nav)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary);
    transition: width 0.3s;
}

.nav-links a:not(.btn-nav):hover::after {
    width: 100%;
}

.nav-links .btn-nav {
    background-color: var(--primary);
    color: white;
    padding: 10px 25px;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(15, 82, 186, 0.2);
}

.nav-links .btn-nav:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
}

/* --- HERO BÖLÜMÜ --- */
.hero {
    padding: 100px 0 80px;
    background: radial-gradient(circle at 10% 20%, rgb(240, 247, 255) 0%, rgb(255, 255, 255) 90%);
    overflow: hidden;
}

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

.hero-text {
    flex: 1.2;
}

.hero-img {
    flex: 1;
    text-align: right;
    position: relative;
}

/* Mockup Effect */
.hero-img img {
    max-width: 110%;
    border-radius: 20px;
    /* removed border/shadow from img itself, using filter drop-shadow for generated png transparency or adding wrapper */
    filter: drop-shadow(0 20px 40px rgba(15, 82, 186, 0.2));
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.5s ease;
}

.hero-img:hover img {
    transform: perspective(1000px) rotateY(0deg);
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 25px;
    font-weight: 800;
    color: var(--dark);
}

.highlight {
    color: var(--primary);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 15px;
    background: rgba(255, 191, 0, 0.2);
    z-index: -1;
    border-radius: 4px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 40px;
    max-width: 90%;
}

.hero-btns {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-top: 40px;
    font-size: 0.95rem;
    color: var(--dark);
    font-weight: 500;
}

.hero-stats .stat {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-stats i {
    color: #198754;
    font-size: 1.2rem;
}

/* --- ÖZELLİKLER --- */
.features {
    padding: 100px 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 70px;
    font-weight: 700;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.card {
    padding: 40px 30px;
    border-radius: 20px;
    background: white;
    border: 1px solid #eee;
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    opacity: 0;
    transition: 0.3s;
}

.card:hover::before {
    opacity: 1;
}

.icon-box {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #e7f1ff 0%, #ffffff 100%);
    color: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
}

.card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.card p {
    color: var(--gray);
    font-size: 1rem;
    line-height: 1.7;
}

/* --- DETAYLAR --- */
.details {
    padding: 100px 0;
    background: #f4f7fa;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.detail-img img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.details h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.check-list {
    margin-top: 30px;
}

.check-list li {
    margin-bottom: 18px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    font-size: 1.05rem;
}

.check-list i {
    color: var(--white);
    background: var(--primary);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.7rem;
    margin-top: 3px;
    flex-shrink: 0;
}

/* --- FİYAT --- */
.pricing {
    padding: 100px 0;
}

.price-card {
    max-width: 420px;
    margin: 0 auto;
    padding: 50px 40px;
    background: white;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    /* Softer shadow */
    text-align: center;
    position: relative;
    border: 1px solid rgba(15, 82, 186, 0.1);
    background: linear-gradient(to bottom, white 0%, #fcfdff 100%);
}

.popular-tag {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary);
    color: #333;
    padding: 8px 25px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: 0 5px 10px rgba(255, 191, 0, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.price-card h3 {
    font-size: 1.5rem;
    color: var(--dark);
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary);
    margin: 25px 0;
    letter-spacing: -1px;
}

.price span {
    font-size: 1.1rem;
    color: var(--gray);
    font-weight: 500;
}

.features-list {
    text-align: left;
    margin: 35px 0;
}

.features-list li {
    margin-bottom: 15px;
    color: var(--dark);
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.features-list i {
    color: #198754;
}

.btn-block {
    display: flex;
    width: 100%;
    justify-content: center;
}

.vat-info {
    margin-top: 15px;
    font-size: 0.85rem;
    color: var(--gray);
}

/* --- SSS --- */
.faq-section {
    background-color: var(--light-bg);
    padding: 100px 0;
}

.faq-item {
    margin-bottom: 15px;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
    border: 1px solid #eee;
    transition: all 0.3s;
}

.faq-active {
    box-shadow: 0 10px 20px rgba(15, 82, 186, 0.1);
    border-color: rgba(15, 82, 186, 0.2);
}

.faq-btn {
    width: 100%;
    border: none;
    background: none;
    padding: 25px;
    text-align: left;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'Inter', sans-serif;
}

.faq-btn span {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 300;
}

.faq-answer {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    padding: 0 25px;
    /* Animated via JS */
    color: var(--gray);
    font-size: 1rem;
    line-height: 1.6;
    transition: max-height 0.3s ease-out, opacity 0.3s ease, padding 0.3s ease;
}

/* --- İNDİRME --- */
.download-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
    position: relative;
}

/* Overlay pattern for texture */
.download-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    pointer-events: none;
}

.download-section h2 {
    margin-bottom: 20px;
    font-size: 2.5rem;
}

.download-section p {
    margin-bottom: 40px;
    opacity: 0.9;
    font-size: 1.2rem;
}

.compatibility {
    margin-top: 20px;
    opacity: 0.7;
    font-size: 0.9rem;
}

/* --- FOOTER --- */
footer {
    background: #111827;
    color: white;
    padding: 80px 0 30px;
}

/* Darker footer */
.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 50px;
    align-items: center;
}

.footer-left h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.footer-left p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-right {
    display: flex;
    gap: 30px;
}

.footer-right a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: 0.3s;
}

.footer-right a:hover {
    color: var(--secondary);
}

.copyright {
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.85rem;
}


/* --- LEGAL/DOCS STYLES (Centralized) --- */
.legal-container {
    background-color: #f8f9fa;
    min-height: 100vh;
    padding: 40px 0;
}

.legal-content {
    background: white;
    padding: 60px;
    margin: 0 auto;
    max-width: 900px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #eef2f6;
}

.legal-content h1 {
    color: var(--primary);
    margin-bottom: 30px;
    font-size: 2.2rem;
    border-bottom: 2px solid #f0f7ff;
    padding-bottom: 20px;
}

.legal-content h2 {
    color: var(--dark);
    margin-top: 40px;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.legal-content h3 {
    color: var(--dark);
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 1.15rem;
    font-weight: 700;
}

.legal-content p,
.legal-content li {
    color: #555;
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.legal-content ul,
.legal-content ol {
    padding-left: 25px;
    margin-bottom: 20px;
}

.legal-content li {
    margin-bottom: 10px;
}

.alert-box {
    background-color: #fff8e1;
    border-left: 5px solid var(--secondary);
    padding: 20px;
    margin: 25px 0;
    border-radius: 8px;
    color: #555;
    font-size: 0.95rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 30px;
    color: var(--gray);
    font-weight: 600;
    background: #f0f7ff;
    padding: 10px 20px;
    border-radius: 50px;
}

.back-link:hover {
    background: var(--primary);
    color: white;
    transform: translateX(-5px);
}


/* --- MOBİL UYUM --- */
@media (max-width: 900px) {
    .hero h1 {
        font-size: 2.8rem;
    }

    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
        gap: 40px;
    }

    .hero-img {
        text-align: center;
    }

    .hero-img img {
        max-width: 100%;
        transform: none;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-btns {
        justify-content: center;
    }

    .grid-2 {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .check-list li {
        justify-content: center;
        text-align: left;
    }

    /* Center items but list test aligned */
    .check-list {
        display: inline-block;
        text-align: left;
    }

    .navbar .hamburger {
        display: block;
        z-index: 1001;
    }

    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        width: 80%;
        max-width: 300px;
        background: white;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 40px;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: 0.4s ease;
        padding: 40px;
    }

    .nav-links.active {
        right: 0;
    }

    .legal-content {
        padding: 30px;
        margin: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
        margin-bottom: 10px;
    }

    .btn-secondary {
        margin-left: 0;
    }

    .section-title {
        font-size: 2rem;
    }
}

/* --- TIMELINE / STEPPER (API GUIDE) --- */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 50px auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: #f0f7ff;
    top: 0;
    bottom: 0;
    left: 24px;
    /* Adjust based on circle size */
    margin-left: -2px;
}

.step-card {
    position: relative;
    background: white;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 40px;
    margin-left: 60px;
    /* Space for the line */
    box-shadow: var(--shadow-sm);
    border: 1px solid #eef2f6;
    transition: 0.3s;
}

.step-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.step-number {
    position: absolute;
    left: -76px;
    /* -60px margin - 16px half width */
    top: 25px;
    width: 36px;
    height: 36px;
    background: var(--primary);
    border: 4px solid #fff;
    border-radius: 50%;
    z-index: 10;
    box-shadow: 0 0 0 4px #e7f1ff;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
}

.step-card h3 {
    color: var(--primary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.step-card p {
    color: #555;
    margin-bottom: 15px;
    font-size: 1rem;
}

.step-card img {
    width: 100%;
    border-radius: 8px;
    margin-top: 10px;
    border: 1px solid #eee;
}

.step-card code {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 15px;
    display: block;
    border-radius: 6px;
    font-family: monospace;
    margin: 15px 0;
    overflow-x: auto;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 5px 10px;
    border-radius: 4px;
    float: right;
    cursor: pointer;
    font-size: 0.8rem;
}