:root {
    --primary-color: #2563eb;
    --secondary-color: #10b981;
    --accent-color: #4338ca;
    --text-color: #1f2937;
    --light-gray: #f3f4f6;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f9fafb;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img, .logo svg {
    height: 60px;
    width: auto;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
}

nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: 10px 15px;
    border-radius: 5px;
    transition: var(--transition);
}

nav a:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.contact-button {
    background-color: var(--white);
    color: var(--primary-color);
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.contact-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background-color: var(--white);
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: #4b5563;
}

/* Service Section */
.services {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 15px;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.services-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.service-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.service-icon i {
    font-size: 3rem;
}

.service-content {
    padding: 25px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.service-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.service-content p {
    color: #4b5563;
    margin-bottom: 20px;
    flex-grow: 1;
}

.read-more, .service-content a.read-more {
    display: inline-block;
    padding: 8px 15px;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    margin-top: auto;
    align-self: flex-start;
}

.read-more:hover {
    background-color: var(--accent-color);
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
    background-color: var(--white);
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    box-shadow: var(--shadow);
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
}

.price-table th {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: left;
    padding: 15px 20px;
}

.price-table td {
    padding: 15px 20px;
    border-bottom: 1px solid #e5e7eb;
}

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

.price-table tr:nth-child(even) {
    background-color: #f9fafb;
}

.price-table tr:hover {
    background-color: #f3f4f6;
}

/* TeamViewer Section */
.teamviewer {
    padding: 80px 0;
    background-color: var(--light-gray);
    text-align: center;
}

.teamviewer-content {
    max-width: 800px;
    margin: 0 auto;
}

.teamviewer-content p {
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin: 40px 0;
}

.step {
    flex: 1;
    min-width: 200px;
    margin: 15px;
    padding: 20px;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    position: relative;
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    box-shadow: var(--shadow);
}

.step h3 {
    margin-top: 15px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.download-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 20px;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--white);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-info p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-info i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.contact-form {
    background-color: var(--light-gray);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.input-wrapper {
    position: relative;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #d1d5db;
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.form-col {
    flex: 1;
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    padding: 12px 25px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    font-size: 1.1rem;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.address-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.address-box {
    flex: 1;
    min-width: 250px;
    padding: 20px;
    background-color: var(--light-gray);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.address-box h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.address-box p {
    margin-bottom: 5px;
}

/* FAQ Section Styles */
.faq {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.faq-container {
    margin-top: 40px;
}

.faq-item {
    margin-bottom: 20px;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    color: #333;
    background-color: #fff;
    display: block;
    width: 100%;
    text-align: left;
    position: relative;
}

.faq-question:hover {
    background-color: #f3f4f6;
}

details > summary {
    list-style: none;
}

details > summary::-webkit-details-marker {
    display: none;
}

details > summary::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}

details[open] > summary::after {
    content: '-';
}

.faq-answer {
    padding: 0 20px 20px 20px;
    line-height: 1.6;
}

/* FAQ Section Styling */
.faq-answer-content {
    padding: 0 20px 20px 20px;
    line-height: 1.6;
}

details[open] .faq-question {
    background-color: #f3f4f6;
}

/* Footer */
footer {
    background-color: #1f2937;
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.footer-col p, .footer-col ul {
    margin-bottom: 15px;
}

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

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

.footer-col ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--secondary-color);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #374151;
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #374151;
    font-size: 0.9rem;
    color: #9ca3af;
}

.privacy-links {
    margin-top: 10px;
}

.privacy-links a {
    color: #d1d5db;
    text-decoration: none;
    margin: 0 10px;
    transition: var(--transition);
}

.privacy-links a:hover {
    color: var(--secondary-color);
}

/* Dynamický formulář */
.optional-field {
    display: none;
}

/* Loading spinner */
.spinner {
    display: none;
    width: 40px;
    height: 40px;
    margin: 0 auto;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Alert Messages */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    display: none;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.alert-error {
    background-color: #fee2e2;
    color: #b91c1c;
    border: 1px solid #ef4444;
}

/* GDPR Checkbox */
.gdpr-consent {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 20px;
}

.gdpr-consent input[type="checkbox"] {
    margin-top: 5px;
}

.inactive-link {
    color: #9ca3af !important;
    cursor: not-allowed;
}

/* Zasilkovna button */
#select-branch-btn {
    padding: 10px 15px;
    background-color: var(--white);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

#select-branch-btn:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Ensure Zasilkovna widget works properly */
#packetaWidgetModal {
    z-index: 9999;
}

/* Responsive Design - OPRAVENO PRO MOBILY */
@media (max-width: 768px) {
    /* Změna fixní hlavičky na mobilních zařízeních */
    header {
        position: relative; /* Na mobilech nebude hlavička fixní */
    }

    /* Zmenšení hlavičky pro mobilní zařízení */
    .header-content {
        flex-direction: column;
        gap: 15px;
        padding: 10px 0;
    }

    .logo {
        justify-content: center;
    }

    .logo img, .logo svg {
        height: 40px; /* Menší logo pro mobily */
        width: auto;
    }

    .logo h1 {
        font-size: 1.4rem; /* Menší nadpis pro mobily */
    }

    /* Vylepšení navigace na mobilech */
    nav {
        margin-top: 10px;
        width: 100%;
    }

    nav ul {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 5px;
    }

    nav a {
        padding: 5px 10px;
        font-size: 0.9rem;
        display: block;
        text-align: center;
    }

    /* Vylepšení formuláře pro mobily */
    .contact-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .form-col {
        width: 100%;
        margin-bottom: 10px;
    }

    /* Upravení velikosti sekce hero */
    .hero {
        padding: 40px 0;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

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

    /* Upravení ostatních sekcí */
    .services, .pricing, .teamviewer, .contact {
        padding: 40px 0;
    }

    /* Vylepšení tabulky s ceníkem */
    .price-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    /* Vylepšení karet služeb */
    .services-container {
        grid-template-columns: 1fr;
    }

    .service-card {
        max-width: 100%;
    }

    /* Úprava kroků TeamViewer */
    .steps {
        flex-direction: column;
        margin: 20px 0;
    }

    .step {
        margin: 25px 0;
    }

    /* Úprava patičky */
    .footer-content {
        grid-template-columns: 1fr;
    }

    /* Upravení adresních boxů */
    .address-container {
        flex-direction: column;
        gap: 15px;
    }

    .address-box {
        width: 100%;
    }
}

/* Úprava mezer ve formuláři pro kompaktnější vzhled */
.form-group {
    margin-bottom: 12px; /* Zmenšení výchozí mezery mezi skupinami (bylo 20px) */
}

.form-row {
    margin-bottom: 12px; /* Zmenšení výchozí mezery mezi řádky (bylo 20px) */
    gap: 10px; /* Zmenšení mezery mezi sloupci (bylo 15px) */
}

.form-control {
    padding: 8px 12px; /* Zmenšení vnitřního paddingu v polích (bylo 12px 15px) */
}

.contact-form {
    padding: 20px; /* Zmenšení paddingu celého formuláře (bylo 30px) */
}

.gdpr-consent {
    margin-bottom: 12px; /* Zmenšení mezery pod GDPR checkboxem (bylo 20px) */
}

/* Zmenšení výšky textového pole pro popis problému */
#problem-description {
    rows: 3; /* Bylo 4 */
}

/* Upravení velikosti nadpisů ve formuláři */
.contact-form h3 {
    margin-bottom: 15px; /* Zmenšený margin pod nadpisem (bylo 20px) */
    font-size: 1.3rem; /* Menší velikost (bylo 1.5rem) */
}

/* Kompaktnější formulářové prvky v mobilním zobrazení */
@media (max-width: 768px) {
    .form-col {
        margin-bottom: 8px; /* Zmenšení mezery mezi sloupci v mobilním zobrazení (bylo 10px) */
    }
}