/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #1a1a2e;
    line-height: 1.7;
    background: #ffffff;
}

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

a {
    color: #b71c1c;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #d32f2f;
}

/* ===== Layout ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 56px 0;
}

h1, h2, h3 {
    line-height: 1.2;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    margin-bottom: 28px;
    text-align: center;
    color: #1a1a2e;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #1a1a2e;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: #e0e0e0;
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #ffffff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #e0e0e0;
    transition: all 0.3s;
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #ffffff;
    padding: 140px 0 80px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-sub {
    font-size: 1.15rem;
    color: #b0b8c8;
    max-width: 600px;
    margin: 0 auto 28px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: #b71c1c;
    color: #ffffff;
    border-color: #b71c1c;
}

.btn-primary:hover {
    background: #d32f2f;
    border-color: #d32f2f;
    color: #ffffff;
}

.btn-outline {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
    border-color: #ffffff;
    color: #ffffff;
}

.btn-full {
    width: 100%;
}

/* ===== About ===== */
.about {
    background: #eef1f5;
}

.about-content {
    max-width: 750px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.05rem;
    color: #444;
    margin-bottom: 14px;
}

/* ===== Products ===== */
.products {
    background: #ffffff;
}

.products-grid {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.product-card {
    background: #f4f5f7;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.product-header {
    overflow: hidden;
}

.product-header img.product-banner {
    width: 100%;
    height: 240px;
    object-fit: cover;
    object-position: center;
}

.toc-header {
    background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toc-title {
    color: #ffffff;
    font-size: 2.2rem;
    letter-spacing: 0.02em;
}

.product-body {
    padding: 28px 36px 32px;
}

.product-body h3 {
    font-size: 1.5rem;
    margin-bottom: 4px;
    color: #1a1a2e;
}

.product-tagline {
    font-size: 0.95rem;
    color: #888;
    margin-bottom: 14px;
    font-weight: 500;
}

.product-body p {
    color: #555;
    margin-bottom: 10px;
    font-size: 0.98rem;
}

/* Phone mockup frames for app screenshots */
.product-screenshots {
    display: flex;
    gap: 24px;
    margin: 24px 0 20px;
    justify-content: center;
}

.phone-frame {
    width: 200px;
    background: #1a1a2e;
    border-radius: 24px;
    padding: 8px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}

.phone-frame img {
    border-radius: 16px;
    width: 100%;
}

/* Wide screenshots for web products */
.product-screenshots-wide {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 24px 0 20px;
}

.screenshot-wide {
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    border: 1px solid #ddd;
}

/* ===== Services ===== */
.services {
    background: #e8ecf1;
}

.services-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.service-icon {
    color: #b71c1c;
    margin-bottom: 16px;
}

.services-content h3 {
    font-size: 1.3rem;
    margin-bottom: 14px;
    color: #1a1a2e;
}

.services-content p {
    color: #555;
    font-size: 1rem;
    margin-bottom: 10px;
}

/* ===== Contact ===== */
.contact {
    background: #f4f5f7;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #1a1a2e;
}

.contact-info > p {
    color: #555;
    margin-bottom: 24px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #444;
    font-size: 0.95rem;
}

.contact-item svg {
    color: #b71c1c;
    flex-shrink: 0;
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #333;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
    padding: 11px 14px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.95rem;
    color: #333;
    transition: border-color 0.2s;
    background: #ffffff;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #b71c1c;
}

.form-group textarea {
    resize: vertical;
}

/* Form status messages */
.form-status {
    text-align: center;
    font-size: 0.9rem;
    margin-top: 4px;
}

.form-status.success {
    color: #2e7d32;
}

.form-status.error {
    color: #c62828;
}

/* ===== Footer ===== */
.footer {
    background: #1a1a2e;
    color: #888;
    text-align: center;
    padding: 24px 0;
    font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero {
        padding: 110px 0 60px;
    }

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

    .hero-sub {
        font-size: 1rem;
    }

    .section {
        padding: 44px 0;
    }

    h2 {
        font-size: 1.6rem;
        margin-bottom: 22px;
    }

    /* Mobile nav */
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #1a1a2e;
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
        box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    }

    .nav-links.active {
        display: flex;
    }

    /* Product cards */
    .product-body {
        padding: 20px 18px 24px;
    }

    .product-screenshots {
        gap: 12px;
    }

    .phone-frame {
        width: 150px;
    }

    .toc-header {
        height: 160px;
    }

    .toc-title {
        font-size: 1.6rem;
    }

    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.7rem;
    }

    .product-screenshots {
        flex-direction: column;
        align-items: center;
    }

    .phone-frame {
        width: 180px;
    }
}