/* CSS Variables & Reset */
:root {
    /* Primární – teplá oranžová (plamen) */
    --color-primary: #E8622E;
    --color-primary-dark: #C74F1F;
    --color-primary-light: #FFF4ED;

    /* Sekundární – petrolejová modrá (plyn, důvěra) */
    --color-secondary: #164E63;
    --color-secondary-dark: #0C3849;
    --color-secondary-light: #E0F2F7;

    /* Neutrální + pozadí */
    --color-bg: #FAFAF9;
    --color-bg-light: #FFFFFF;
    --color-bg-alt: #F5F5F4;

    --color-text: #1F2937;
    --color-text-light: #5B6270;
    --color-border: #E5E7EB;

    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Oswald', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.12);

    --transition: all 0.3s ease;

    --header-height: 80px;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-secondary);
    font-weight: 600;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: 0;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    z-index: 10000;
    font-weight: 600;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.skip-link:focus {
    transform: translateY(0);
    opacity: 1;
}

/* Focus States for Accessibility */
button:focus,
.btn:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

details summary:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Elegant focus for navigation links - Gradient Underline */
.nav__link,
.mobile-menu__link,
.footer__links a {
    position: relative;
    transition: color 0.2s ease;
}

.nav__link:focus,
.mobile-menu__link:focus,
.footer__links a:focus {
    outline: none;
    color: var(--color-primary);
}

.nav__link:focus::after,
.mobile-menu__link:focus::after,
.footer__links a:focus::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg,
            var(--color-primary) 0%,
            var(--color-secondary) 100%);
    border-radius: 2px;
    animation: slideIn 0.2s ease-out;
    transform-origin: left;
}

@keyframes slideIn {
    from {
        transform: scaleX(0);
        opacity: 0;
    }

    to {
        transform: scaleX(1);
        opacity: 1;
    }
}

/* Focus for logo and regular links - subtle background */
a:focus {
    outline: none;
    background-color: rgba(232, 98, 46, 0.1);
    border-radius: 2px;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.text-primary {
    color: var(--color-primary);
}

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

.bg-light {
    background-color: var(--color-bg-light);
}

.bg-primary-light {
    background-color: var(--color-primary-light);
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.text-xs {
    font-size: 0.75rem;
}

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

.hidden {
    display: none !important;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    font-size: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn--primary {
    background: linear-gradient(135deg, #E8622E 0%, #DC5222 100%);
    color: white;
}

.btn--primary:hover {
    background: linear-gradient(135deg, #DC5222 0%, #C74F1F 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(232, 98, 46, 0.3);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--secondary {
    background-color: white;
    color: var(--color-secondary);
    border: 2px solid var(--color-secondary);
    box-shadow: none;
}

.btn--secondary:hover {
    background-color: var(--color-secondary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(22, 78, 99, 0.2);
}

.btn--sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn--lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn--full {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
    border-bottom-color: var(--color-border);
}

.header__container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo__subtitle {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--color-text);
}

.logo__text--mobile {
    display: none;
}

@media (max-width: 600px) {
    .logo__text {
        display: none;
    }

    .logo__text--mobile {
        display: inline;
    }
}

.nav {
    display: none;
}

@media (min-width: 900px) {
    .nav {
        display: block;
    }

    .nav__list {
        display: flex;
        gap: 2rem;
    }

    .nav__link {
        font-weight: 500;
        color: var(--color-text);
        transition: color 0.2s;
    }

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

.header__cta {
    display: none;
}

@media (min-width: 600px) {
    .header__cta {
        display: inline-flex;
    }
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

@media (min-width: 900px) {
    .menu-toggle {
        display: none;
    }
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: var(--transition);
}

.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: white;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-150%);
    transition: transform 0.3s ease-in-out;
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu__list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
}

.mobile-menu__link {
    display: block;
    padding: 0.5rem;
    font-size: 1.125rem;
    font-weight: 500;
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
}

.section__title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    color: var(--color-text);
}

@media (max-width: 600px) {
    .section__title {
        font-size: 1.75rem;
    }
}

/* Hero */
.hero {
    padding-top: calc(var(--header-height) + var(--spacing-lg));
    padding-bottom: var(--spacing-lg);
    background: linear-gradient(180deg, #FAFAF9 0%, #FFF4ED 100%);
    position: relative;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    align-items: center;
}

@media (min-width: 900px) {
    .hero__container {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

.hero__title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

@media (min-width: 600px) {
    .hero__title {
        font-size: 2.75rem;
    }
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

.hero__benefits {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.hero__benefits li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.icon--check {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
    stroke-width: 2.5;
}

.hero__actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (min-width: 400px) {
    .hero__actions {
        flex-direction: row;
    }
}

.hero__brands {
    font-size: 0.875rem;
    color: var(--color-text-light);
    background-color: var(--color-bg-light);
    padding: 1rem;
    border-radius: var(--radius-sm);
    display: inline-block;
}

.hero__brands-text {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-top: 1rem;
}

.hero__brands-text strong {
    color: var(--color-text);
    font-weight: 600;
}

.hero__image img,
.hero__image svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(14, 165, 233, 0.2));
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.card {
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--color-border);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.service-card__icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #FFF4ED 0%, #FFE8DC 100%);
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(232, 98, 46, 0.15);
}

.service-card__title {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

/* Process */
.steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .steps {
        flex-direction: row;
        gap: 1rem;
        align-items: flex-start;
    }
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
}

.step__number {
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: white;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.125rem;
}

.step__connector {
    display: none;
}

@media (min-width: 768px) {
    .step__connector {
        display: block;
        height: 2px;
        background-color: var(--color-border);
        flex: 0.5;
        margin-top: 20px;
    }
}

.step__title {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

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

/* Pricing */
.pricing-card {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.pricing-intro {
    font-size: 1.25rem;
    color: var(--color-secondary);
}

.pricing-list {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pricing-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 500;
}

.pricing-list .icon--check {
    color: var(--color-primary);
    font-weight: bold;
}

.pricing-footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-md);
}

.pricing-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-align: center;
}

/* Areas */
.area-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.badge {
    background-color: white;
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-light);
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-stars {
    color: #fbbf24;
    /* Amber */
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
}

.testimonial-author {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-secondary);
}

/* FAQ */
.faq-container {
    max-width: 800px;
}

.accordion__item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    overflow: hidden;
    background: white;
}

.accordion__header {
    padding: 1.25rem;
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    /* Hide default arrow */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion__header::-webkit-details-marker {
    display: none;
}

.accordion__header::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: 400;
    transition: transform 0.2s;
}

.accordion__item[open] .accordion__header::after {
    transform: rotate(45deg);
}

.accordion__item[open] .accordion__header {
    background-color: var(--color-bg-light);
    border-bottom: 1px solid var(--color-border);
}

.accordion__content {
    padding: 1.25rem;
    color: var(--color-text);
    line-height: 1.7;
}

/* Contact */
.contact-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 900px) {
    .contact-container {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-info {
    order: 2;
}

@media (min-width: 900px) {
    .contact-info {
        order: 1;
    }
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.contact-icon {
    font-size: 1.5rem;
    background: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.contact-list small {
    display: block;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.contact-link {
    font-size: 1.125rem;
    font-weight: 600;
}

/* Footer */
.footer {
    background-color: var(--color-secondary);
    color: #E0F2F7;
    padding: 4rem 0 2rem;
    margin-top: auto;
    border-top: 4px solid var(--color-primary);
}

.footer .text-muted {
    color: #A3B9C0;
}

.footer__container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer__links li {
    margin-bottom: 0.5rem;
}

.footer__links a {
    color: #E0F2F7;
    transition: color 0.2s;
}

.footer__links a:hover {
    color: #FFFFFF;
    text-decoration: underline;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: white;
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    animation: slideUp 0.5s ease;
}

@media (min-width: 768px) {
    .cookie-banner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .cookie-banner__content {
        flex: 1;
        padding-right: 2rem;
    }

    .cookie-banner__actions {
        display: flex;
        gap: 0.5rem;
        white-space: nowrap;
    }
}

.cookie-banner__title {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.cookie-banner__text {
    font-size: 0.9rem;
    color: var(--color-text);
    margin: 0;
}

.cookie-banner__text a {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Cookie Modal */
.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cookie-modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.cookie-modal__content {
    background: white;
    width: 90%;
    max-width: 500px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.3s ease;
}

.cookie-modal__header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cookie-modal__close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-text-light);
    line-height: 1;
}

.cookie-modal__body {
    padding: 1.5rem;
    overflow-y: auto;
}

.cookie-modal__footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-light);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.cookie-option {
    margin-bottom: 1.5rem;
}

.cookie-option:last-child {
    margin-bottom: 0;
}

.cookie-option__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.cookie-option__desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-left: 3.5rem;
    /* Align with text start */
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 40px;
    height: 24px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.toggle-slider {
    background-color: var(--color-primary);
}

input:checked+.toggle-slider:before {
    transform: translateX(16px);
}

input:disabled+.toggle-slider {
    opacity: 0.5;
    cursor: not-allowed;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

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