/* Modern Styles for INFO WEB s.r.o. - Dark Theme Primary with Light Theme Support */

:root {
    /* Dark Theme (Default) - shadcn.io inspired */
    --background: 222.2 84% 4.9%;
    --foreground: 210 40% 98%;
    --card: 222.2 84% 7%;
    --card-foreground: 210 40% 98%;
    --popover: 222.2 84% 4.9%;
    --popover-foreground: 210 40% 98%;
    --primary: 210 40% 98%;
    --primary-foreground: 222.2 47.4% 11.2%;
    --secondary: 217.2 32.6% 17.5%;
    --secondary-foreground: 210 40% 98%;
    --muted: 217.2 32.6% 17.5%;
    --muted-foreground: 215 20.2% 65.1%;
    --accent: 217.2 32.6% 17.5%;
    --accent-foreground: 210 40% 98%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 210 40% 98%;
    --border: 217.2 32.6% 17.5%;
    --input: 217.2 32.6% 17.5%;
    --ring: 212.7 26.8% 83.9%;
    --radius: 0.5rem;

    /* Semantic colors - Dark */
    --text-primary: hsl(210, 40%, 98%);
    --text-secondary: hsl(215, 20.2%, 65.1%);
    --text-muted: hsl(215, 16%, 47%);
    --bg-primary: hsl(222.2, 84%, 4.9%);
    --bg-secondary: hsl(217.2, 32.6%, 17.5%);
    --bg-muted: hsl(217.2, 32.6%, 12%);
    --border-color: hsl(217.2, 32.6%, 17.5%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.5), 0 1px 2px -1px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
}

/* Light Theme */
[data-theme="light"] {
    --background: 0 0% 100%;
    --foreground: 222.2 84% 4.9%;
    --card: 0 0% 100%;
    --card-foreground: 222.2 84% 4.9%;
    --popover: 0 0% 100%;
    --popover-foreground: 222.2 84% 4.9%;
    --primary: 222.2 47.4% 11.2%;
    --primary-foreground: 210 40% 98%;
    --secondary: 210 40% 96.1%;
    --secondary-foreground: 222.2 47.4% 11.2%;
    --muted: 210 40% 96.1%;
    --muted-foreground: 215.4 16.3% 46.9%;
    --accent: 210 40% 96.1%;
    --accent-foreground: 222.2 47.4% 11.2%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 210 40% 98%;
    --border: 214.3 31.8% 91.4%;
    --input: 214.3 31.8% 91.4%;
    --ring: 222.2 84% 4.9%;

    /* Semantic colors - Light */
    --text-primary: hsl(222.2, 84%, 4.9%);
    --text-secondary: hsl(215.4, 16.3%, 46.9%);
    --text-muted: hsl(215.4, 16.3%, 56.9%);
    --bg-primary: hsl(0, 0%, 100%);
    --bg-secondary: hsl(210, 40%, 96.1%);
    --bg-muted: hsl(210, 40%, 98%);
    --border-color: hsl(214.3, 31.8%, 91.4%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.625;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography - shadcn.io style */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.035em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.625;
}

.lead {
    font-size: 1.25rem;
    color: var(--text-muted);
    line-height: 1.75;
}

a {
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

a:hover {
    opacity: 0.8;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* Theme Switcher */
.theme-switcher {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
}

.theme-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
    font-size: 1.25rem;
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.theme-toggle:active {
    transform: translateY(0);
}

.theme-toggle .icon {
    display: none;
}

.theme-toggle .icon.active {
    display: block;
}

/* Navigation - Clean & Minimal */
.navbar {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    backdrop-filter: blur(8px);
    background-color: rgba(var(--background), 0.8);
    transition: all 0.3s ease;
}

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

.navbar-brand {
    display: flex;
    align-items: center;
}

.navbar-brand img {
    height: 45px;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
}

.navbar-menu li a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.navbar-menu li a:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.navbar-menu li a.active {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
    padding: 0.5rem;
}

/* Hero Section - Refined */
.hero {
    background-color: var(--bg-primary);
    padding: 5rem 0 4rem;
    text-align: center;
    position: relative;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.375rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.hero h1 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.75;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Page Title (for About page) */
.page-title {
    background-color: var(--bg-muted);
    border-bottom: 1px solid var(--border-color);
    padding: 3rem 0 2rem;
    text-align: center;
}

.page-title h1 {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.breadcrumb {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: 0.5rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-muted);
    transition: color 0.2s ease;
}

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

/* Sections */
section {
    padding: 4rem 0;
}

section.alternate {
    background-color: var(--bg-muted);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* Cards - shadcn.io style */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.card {
    background: var(--bg-primary);
    border-radius: calc(var(--radius) + 4px);
    padding: 1.75rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--text-muted);
}

.card-icon {
    width: 48px;
    height: 48px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 1.25rem;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.625;
    margin-bottom: 0;
    flex-grow: 1;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.project-card {
    background: var(--bg-primary);
    border-radius: calc(var(--radius) + 4px);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.project-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.project-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.project-card-content {
    padding: 1.25rem;
}

.project-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.project-card .date {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Features List */
.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    list-style: none;
    margin-top: 2rem;
}

.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    padding: 0.5rem;
}

.features-list li::before {
    content: '✓';
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 600;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
}

/* Stats Section */
.stats {
    background-color: var(--bg-muted);
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

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

.stat-item strong {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.stat-item label {
    display: block;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* CTA Section */
.cta {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 3rem 0;
}

.cta .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cta h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.cta p {
    color: var(--text-secondary);
    margin: 0;
}

/* Accordion */
.accordion {
    margin-top: 2rem;
}

.accordion-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: all 0.2s ease;
}

.accordion-item:hover {
    border-color: var(--text-muted);
}

.accordion-header {
    padding: 1rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s ease;
    font-size: 0.9375rem;
}

.accordion-header:hover {
    background-color: var(--bg-muted);
}

.accordion-header i {
    transition: transform 0.2s ease;
    color: var(--text-muted);
}

.accordion-content {
    padding: 0 1.25rem 1rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.625;
}

/* Progress Bars */
.progress-bars {
    margin-top: 2rem;
}

.progress-item {
    margin-bottom: 1.5rem;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.progress-bar-container {
    background-color: var(--bg-secondary);
    height: 8px;
    border-radius: 9999px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.progress-bar {
    height: 100%;
    background-color: var(--text-primary);
    border-radius: 9999px;
    transition: width 1s ease;
}

/* About Content */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    margin-top: 2rem;
}

.about-image img {
    width: 100%;
    border-radius: calc(var(--radius) + 4px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.about-text h2 {
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1rem;
}

/* Quote Section */
.quote-section {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.quote-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><circle cx="30" cy="30" r="1.5" fill="white" opacity="0.05"/></svg>');
    background-repeat: repeat;
}

.quote-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.quote-section blockquote {
    font-size: 1.5rem;
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.5;
}

.quote-section .quote-author {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9375rem;
}

.quote-section .quote-cta {
    text-align: right;
}

.quote-section h4 {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.quote-section h2 {
    color: var(--text-primary);
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
}

/* Team Grid */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.team-card {
    background: var(--bg-primary);
    border-radius: calc(var(--radius) + 4px);
    padding: 1.75rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.2s ease;
}

.team-card:hover {
    box-shadow: var(--shadow-md);
}

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.team-card h4 {
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.team-card .role {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background-color: var(--bg-muted);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.footer-section h4 {
    margin-bottom: 1.25rem;
    font-size: 1rem;
    font-weight: 600;
}

.footer-section p,
.footer-section li {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.75;
    margin-bottom: 0.5rem;
}

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

.footer-section a {
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.social-links a {
    width: 36px;
    height: 36px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}

.social-links a:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.footer-bottom a:hover {
    color: var(--text-primary);
}

/* Buttons - shadcn.io style */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
    line-height: 1.5;
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-muted);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: var(--bg-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        backdrop-filter: blur(8px);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-color);
    }

    .navbar-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero {
        padding: 3rem 0 2.5rem;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    h2 {
        font-size: 1.875rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .quote-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .quote-section .quote-cta {
        text-align: center;
    }

    .cta .container {
        flex-direction: column;
        text-align: center;
    }

    .card-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    section {
        padding: 3rem 0;
    }

    .theme-switcher {
        bottom: 1rem;
        right: 1rem;
    }

    .theme-toggle {
        width: 48px;
        height: 48px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero h1 {
        font-size: 1.875rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-item strong {
        font-size: 2rem;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Focus Styles for Accessibility */
*:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

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

.fade-in-up {
    animation: fadeInUp 0.5s ease-out;
}