/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

:root {
    /* Colors - Moderní, jemnější paleta */
    --color-primary: #e63946;
    --color-primary-light: #f77f7f;
    --color-primary-dark: #c1121f;
    --color-accent: #ffb703;
    --color-accent-light: #ffd166;
    --color-text: #2b2d42;
    --color-text-light: #8d99ae;
    --color-bg: #f8f9fa;
    --color-bg-alt: #ffffff;
    --color-bg-gradient: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #ffffff 100%);
    --color-card: #ffffff;
    --color-link: #e63946;
    --color-link-hover: #c1121f;
    --color-border: #e9ecef;
    
    /* Typography */
    --font-heading: 'Oswald', sans-serif;
    --font-primary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-sm: 0.75rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
    
    /* Transitions */
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.7;
    background-color: var(--color-bg);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(230, 57, 70, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 183, 3, 0.03) 0%, transparent 50%);
    background-attachment: fixed;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ============================================
   LOGO SECTION
   ============================================ */

.logo-section {
    padding-top: 0;
    padding-bottom: 0;
    text-align: center;
    background-color: var(--color-bg-alt);
    animation: fadeIn 0.6s ease-out;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.logo-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.logo-image {
    width: 1200px;
    max-width: 100%;
    height: 300px;
    display: block;
    object-fit: contain;
    object-position: center;
    /* Čisté vykreslení SVG na všech displejích */
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

@media (min-width: 768px) {
    .logo-section {
        padding-top: 0;
        padding-bottom: 0;
    }
    
    .logo-image {
        width: 1200px;
        max-width: 100%;
    }
}

/* ============================================
   TITLE SECTION
   ============================================ */

.title-section {
    padding: var(--spacing-lg) 0;
    text-align: center;
    background: var(--color-bg-alt);
    animation: fadeInUp 0.8s ease-out;
    position: relative;
    overflow: hidden;
    margin: 0;
}

.title-section.content-section .container {
    background-color: var(--color-card);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--color-border);
}

.title-content {
    margin-top: var(--spacing-md);
    text-align: left;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.features-highlight {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    justify-content: center;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: linear-gradient(135deg, rgba(230, 57, 70, 0.1) 0%, rgba(255, 183, 3, 0.1) 100%);
    border: 2px solid var(--color-primary);
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: var(--transition-normal);
}

.feature-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.2);
    background: linear-gradient(135deg, rgba(230, 57, 70, 0.15) 0%, rgba(255, 183, 3, 0.15) 100%);
}

.feature-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    stroke: currentColor;
}

.title-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-primary) 20%, var(--color-accent) 50%, var(--color-primary) 80%, transparent 100%);
    background-size: 200% 100%;
    animation: lineMove 4s ease-in-out infinite;
    opacity: 0.6;
}

.title-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-primary) 20%, var(--color-accent) 50%, var(--color-primary) 80%, transparent 100%);
    background-size: 200% 100%;
    animation: lineMove 4s ease-in-out infinite reverse;
    opacity: 0.5;
}

.main-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.title-main {
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 1.2em;
    position: relative;
    display: inline-block;
    font-weight: 700;
}

.title-sub {
    color: var(--color-text);
    font-weight: 400;
    font-size: 0.85em;
}

@media (min-width: 768px) {
    .title-section {
        padding: var(--spacing-lg) 0;
    }
    
    .main-title {
        font-size: 2.5rem;
    }
    
    .title-main {
        font-size: 1.1em;
    }
    
    .title-sub {
        font-size: 0.75em;
    }
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */

.content-section {
    padding: var(--spacing-lg) 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.content-section .container {
    background-color: var(--color-card);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--color-border);
}

.content-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-alt {
    background: var(--color-bg);
    position: relative;
}

.section-alt .container {
    background: linear-gradient(135deg, var(--color-card) 0%, #f8f9fa 100%);
}

.section-alt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-primary) 20%, var(--color-accent) 50%, var(--color-primary) 80%, transparent 100%);
    background-size: 200% 100%;
    animation: lineMove 4s ease-in-out infinite;
    opacity: 0.5;
}

.section-heading {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.content-text {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
    max-width: 900px;
    color: var(--color-text);
}

.lead-text {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .content-text {
        text-align: justify;
        text-justify: inter-word;
    }
}

.content-text:last-child {
    margin-bottom: 0;
}


/* ============================================
   IMAGE GRID
   ============================================ */

.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    max-width: 100%;
    margin-left: 0;
    margin-right: auto;
    padding: 0;
}

@media (min-width: 768px) {
    .image-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        max-width: 1100px;
    }
}

.image-item {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 12px;
    background-color: var(--color-bg);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 100%;
}

.buggy-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background-color: var(--color-bg);
    position: relative;
    z-index: 0;
}

/* Obrázky jsou nyní načteny - placeholder odstraněn */

@media (min-width: 768px) {
    .image-grid {
        gap: var(--spacing-md);
    }
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.trainer-section {
    background: var(--color-bg);
    position: relative;
}

.trainer-section .container {
    background: linear-gradient(135deg, var(--color-card) 0%, #f8f9fa 100%);
    border-left: 4px solid var(--color-primary);
}

.trainer-content {
    max-width: 900px;
    margin: 0 auto;
}

.trainer-info {
    text-align: left;
}

.trainer-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.trainer-name h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.trainer-icon {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.trainer-highlights {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.trainer-highlight-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 12px;
    transition: var(--transition-normal);
    min-height: fit-content;
}

.trainer-highlight-item:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.highlight-icon {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.trainer-highlight-item div {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
    min-width: 0;
}

.trainer-highlight-item strong {
    color: var(--color-primary);
    font-size: 0.95rem;
    line-height: 1.3;
    display: block;
}

.trainer-highlight-item span {
    color: var(--color-text-light);
    font-size: 0.85rem;
    line-height: 1.4;
    display: block;
}

@media (min-width: 768px) {
    .trainer-highlights {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .trainer-name h3 {
        font-size: 2rem;
    }
}

.contact-section {
    text-align: center;
    background: var(--color-bg);
    position: relative;
    overflow: hidden;
}

.contact-section .container {
    background: linear-gradient(135deg, var(--color-card) 0%, #f8f9fa 100%);
    border: 2px solid var(--color-primary);
    border-style: dashed;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-primary) 20%, var(--color-accent) 50%, var(--color-primary) 80%, transparent 100%);
    background-size: 200% 100%;
    animation: lineMove 4s ease-in-out infinite;
    opacity: 0.6;
}

.contact-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-primary) 20%, var(--color-accent) 50%, var(--color-primary) 80%, transparent 100%);
    background-size: 200% 100%;
    animation: lineMove 4s ease-in-out infinite reverse;
    opacity: 0.5;
}

.contact-info {
    max-width: 1000px;
    margin: 0 auto;
    text-align: left;
}

.contact-block {
    padding: var(--spacing-md);
    max-width: 600px;
    margin: 0;
}

.contact-items-compact {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: var(--spacing-sm);
}

.contact-block-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.contact-block-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-detail {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 0;
    color: var(--color-text);
}

.contact-item {
    font-size: 1rem;
    line-height: 1.8;
    padding: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: 0;
}

.contact-icon-svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-link {
    color: var(--color-link);
    text-decoration: none;
    transition: var(--transition-normal);
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.contact-link:hover,
.contact-link:focus {
    color: var(--color-link-hover);
    background-color: rgba(230, 57, 70, 0.1);
    text-decoration: none;
}

.contact-schedule {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.title-content .contact-schedule {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.schedule-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.4);
    border-radius: 8px;
}

.schedule-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.schedule-item strong {
    color: var(--color-primary);
    font-weight: 600;
}

.schedule-note {
    color: var(--color-text-light);
    font-size: 0.9rem;
    font-style: italic;
}

@media (min-width: 768px) {
    .contact-block {
        padding: var(--spacing-lg);
    }
    
    .contact-item {
        font-size: 1rem;
    }
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: #000000;
    color: white;
    padding: var(--spacing-md) 0;
    text-align: center;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-primary) 20%, var(--color-accent) 50%, var(--color-primary) 80%, transparent 100%);
    background-size: 200% 100%;
    animation: lineMove 4s ease-in-out infinite;
    opacity: 0.6;
}

.footer-text {
    font-size: 0.9rem;
    margin: 0;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

a:focus,
button:focus {
    outline: 3px solid var(--color-link);
    outline-offset: 2px;
}

/* ============================================
   PRINT STYLES
   ============================================ */

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes lineMove {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */

/* GPU acceleration for animations */
.content-section,
.image-item,
.feature-badge,
.trainer-highlight-item {
    will-change: transform, opacity;
}

/* ============================================
   DOCUMENTS SECTION
   ============================================ */

.documents-section {
    background: var(--color-bg);
    position: relative;
}

.documents-section .container {
    background: linear-gradient(135deg, var(--color-card) 0%, #f8f9fa 100%);
}

.documents-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

@media (min-width: 768px) {
    .documents-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.document-card {
    border-radius: 12px;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.document-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.document-icon {
    width: 40px;
    height: 52px;
    border-radius: 8px;
    background: linear-gradient(145deg, var(--color-primary), var(--color-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 700;
    font-size: 0.75rem;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.2);
}

.document-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin: 0 0 0.25rem 0;
    color: var(--color-primary);
}

.document-meta {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.document-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.3rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition-normal);
}

.button-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #ffffff;
    border-color: var(--color-primary);
}

.button-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(230, 57, 70, 0.35);
}

.button-ghost {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.button-ghost:hover {
    background: rgba(230, 57, 70, 0.06);
}

/* SVG logo – ostré vykreslení */
.logo-image {
    image-rendering: auto;
}

.buggy-image {
    image-rendering: auto;
    image-rendering: smooth;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .footer {
        background-color: transparent;
        color: var(--color-text);
    }
    
    .content-section {
        opacity: 1;
        transform: none;
    }
}