/* ==========================================================================
   1. VARIABLES & RESET
   ========================================================================== */
:root {
    /* Color Palette */
    --clr-bg-cream: #FBF9F6;
    --clr-bg-white: #FFFFFF;
    --clr-text-main: #3E3935;
    --clr-text-light: #6A6560;
    --clr-accent: #BCA38A; 
    --clr-accent-hover: #A38C76;
    --clr-border: #EAE3DA;
    --clr-card-bg: #F5EFEB;

    /* Typography */
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Playfair Display', serif;
    
    /* Spacing & Layout */
    --container-width: 80%; /* Změněno na 80% šířky obrazovky */
    --container-max-width: 1600px;
    --section-spacer: 8rem;
    --section-spacer-sm: 4rem;
    --border-radius: 12px;
    
    /* Shadows */
    --shadow-md: 0 10px 25px rgba(62, 57, 53, 0.06);
    --shadow-lg: 0 15px 35px rgba(62, 57, 53, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-main: 0.3s ease;
}

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

html {
    font-size: 62.5%; /* 1rem = 10px */
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    scroll-padding-top: 8rem; /* Odsazení při scrollování, zabraňuje překrytí hlavičkou */
}

body {
    font-family: var(--font-main);
    font-size: 1.8rem;
    line-height: 1.7;
    color: var(--clr-text-main);
    background-color: var(--clr-bg-white);
}

/* ==========================================================================
   2. REUSABLE COMPONENTS & HELPERS
   ========================================================================== */
.container {
    width: var(--container-width);
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

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

/* Grid System */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

/* Typography Helpers */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
    margin-bottom: 2rem;
}

h1 { font-size: 6rem; font-weight: 600; }
h1 span { color: var(--clr-accent); }
h2 { font-size: 4.8rem; margin-bottom: 3rem; }
h3 { font-size: 3rem; margin-bottom: 1.5rem; }
h4 { font-size: 2.2rem; font-weight: 600; }
h4 span { font-weight: 400; font-family: var(--font-main); color: var(--clr-text-light); }

p { margin-bottom: 2rem; }
.lead { font-size: 2rem; color: var(--clr-text-light); }
p:last-child { margin-bottom: 0; }

.margin-top-md { margin-top: 4rem; }

/* Images & Rounded Corners */
.img-responsive {
    width: 100%;
    height: auto;
    display: block;
}

.rounded-shadow {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.rounded-shadow-lg {
    border-radius: 100px 100px var(--border-radius) var(--border-radius);
    box-shadow: var(--shadow-lg);
}

/* Sections Styling */
section {
    padding: var(--section-spacer) 0;
}

.bg-cream { background-color: var(--clr-bg-cream); }
.bg-white { background-color: var(--clr-bg-white); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 1.6rem 3.2rem;
    font-size: 1.6rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all var(--transition-main);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--clr-accent);
    color: var(--clr-bg-white);
}

.btn-primary:hover {
    background-color: var(--clr-accent-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--clr-text-main);
    color: var(--clr-bg-white);
}

.btn-secondary:hover {
    background-color: #000000;
    transform: translateY(-2px);
}

.btn-secondary-outline {
    background-color: transparent;
    border-color: var(--clr-border);
    color: var(--clr-text-main);
}

.btn-secondary-outline:hover {
    border-color: var(--clr-text-main);
    background-color: rgba(62, 57, 53, 0.05);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 1s ease forwards;
    opacity: 0;
}

.fade-in-up {
    animation: fadeInUp 1s ease forwards;
    opacity: 0;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

/* Micro-interactions */
.card-lift {
    transition: transform var(--transition-main), box-shadow var(--transition-main);
}

.card-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   3. HEADER & NAVIGATION
   ========================================================================== */
.site-header {
    background-color: var(--clr-bg-white);
    padding: 1.25rem 0; /* Zmenšeno o 50% */
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(62, 57, 53, 0.03);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 600;
    color: var(--clr-text-main);
    text-decoration: none;
    z-index: 1001; 
}

.logo span {
    color: var(--clr-accent);
}

/* Navigace Desktop */
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 3.5rem;
}

.main-nav a {
    text-decoration: none;
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--clr-text-main);
    transition: color var(--transition-fast);
}

.main-nav a:hover {
    color: var(--clr-accent);
}

.nav-toggle, 
.nav-toggle-label {
    display: none;
}

/* ==========================================================================
   4. HERO SECTION
   ========================================================================== */
.hero-section {
    padding-top: 13rem; /* Zohlednění menší hlavičky */
    padding-bottom: var(--section-spacer-sm);
}

.hero-subtitle {
    font-size: 2rem;
    line-height: 1.8;
    color: var(--clr-text-light);
    margin-bottom: 4rem;
}

/* ==========================================================================
   5. ABOUT ME SECTION
   ========================================================================== */
.about-section .grid-2.alt-layout {
    grid-template-columns: 0.8fr 1.2fr;
}

.text-block p {
    margin-bottom: 2rem;
}

.testimonial {
    margin-top: 4rem;
    padding-left: 2rem;
    border-left: 3px solid var(--clr-accent);
}

.testimonial p {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-style: italic;
    color: var(--clr-text-light);
}

/* ==========================================================================
   6. WORK / METODA SECTION
   ========================================================================== */
.sticky-img {
    position: sticky;
    top: 10rem;
}

.work-image-col {
    align-self: flex-start;
}

.card-light {
    background-color: var(--clr-card-bg);
    padding: 3rem;
    border-radius: var(--border-radius);
    margin-top: 3rem;
}

.card-light h4 span {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 1.8rem;
}

.img-divider {
    max-height: 350px;
    object-fit: cover;
    width: 100%;
}

/* ==========================================================================
   7. PRICING SECTION
   ========================================================================== */
.grid-pricing {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
    align-items: flex-start;
    margin-top: 6rem;
}

.pricing-card {
    background-color: var(--clr-bg-white);
    padding: 5rem 4rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card h3 {
    margin-top: 1rem;
    font-size: 2.6rem;
}

.pricing-card .description {
    font-size: 1.6rem;
    color: var(--clr-text-light);
    margin-bottom: 3rem;
    flex-grow: 1;
}

.pricing-card .features {
    list-style: none;
    margin-bottom: 3rem;
    text-align: left;
    display: inline-block;
    font-size: 1.6rem;
}

.pricing-card .features li {
    margin-bottom: 1rem;
    position: relative;
    padding-left: 2.5rem;
}

.pricing-card .features li::before {
    content: '✓';
    color: var(--clr-accent);
    position: absolute;
    left: 0;
    font-weight: 700;
}

.price-wrap {
    margin-bottom: 3rem;
}

.pricing-card .price {
    display: block;
    font-family: var(--font-heading);
    font-size: 4.8rem;
    font-weight: 600;
    color: var(--clr-text-main);
}

.pricing-card .duration {
    display: block;
    font-size: 1.6rem;
    color: var(--clr-text-light);
    margin-top: -0.5rem;
}

.pricing-card.highlighted {
    border: 3px solid var(--clr-accent);
    position: relative;
    transform: scale(1.05);
}

.pricing-card.highlighted:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-card .badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--clr-accent);
    color: var(--clr-bg-white);
    padding: 0.5rem 2rem;
    border-radius: 50px;
    font-size: 1.4rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================================================
   8. CONTACT SECTION
   ========================================================================== */
.contact-section .grid-2 {
    gap: 8rem;
}

.contact-info {
    align-self: flex-start;
}

.contact-details {
    margin-top: 5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 2rem;
    text-decoration: none;
    color: var(--clr-text-main);
    transition: background-color var(--transition-main);
}

.icon {
    width: 2.4rem;
    height: 2.4rem;
    fill: var(--clr-accent);
}

.contact-item span {
    font-size: 1.8rem;
}

.contact-item.hover-accent:hover {
    background-color: rgba(188, 163, 138, 0.1);
    border-radius: var(--border-radius);
}

/* Form Styling */
.card-form {
    background-color: var(--clr-bg-white);
    padding: 5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--clr-border);
}

.form-group {
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

label {
    display: block;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--clr-text-light);
    margin-bottom: 0.8rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
    width: 100%;
    padding: 1.5rem;
    border: 1px solid var(--clr-border);
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 1.6rem;
    color: var(--clr-text-main);
    background-color: var(--clr-bg-cream);
    transition: all var(--transition-fast);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--clr-accent);
    background-color: var(--clr-bg-white);
    box-shadow: 0 0 0 4px rgba(188, 163, 138, 0.15);
}

textarea {
    resize: vertical;
}

/* ==========================================================================
   9. FOOTER
   ========================================================================== */
.site-footer {
    padding: 4rem 0;
    border-top: 1px solid var(--clr-border);
}

.site-footer .logo.small {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.copyright {
    font-size: 1.4rem;
    color: var(--clr-text-light);
}

/* ==========================================================================
   10. MEDIA QUERIES (Responsivity - Mobile-first)
   ========================================================================== */

@media (max-width: 1400px) {
    :root {
        --container-width: 90%;
    }
}

/* Large Tablets & Small Desktops (max-width: 1024px) */
@media (max-width: 1024px) {
    h1 { font-size: 5rem; }
    h2 { font-size: 4rem; }
    
    .grid-pricing {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
    
    .pricing-card.highlighted {
        transform: scale(1);
        grid-row: span 1;
        grid-column: span 1;
    }
    
    .pricing-card.highlighted:hover {
        transform: translateY(-8px) scale(1);
    }

    .about-section .grid-2.alt-layout {
        grid-template-columns: 1fr;
    }

    .about-image {
        max-width: 400px;
        margin: 0 auto 4rem auto;
    }
}

/* Small Tablets & Large Phones (max-width: 768px) */
@media (max-width: 768px) {
    :root {
        --section-spacer: 6rem;
        --container-width: 100%; /* Plná šířka na mobilu + padding */
    }

    html {
        scroll-padding-top: 6rem; /* Menší offset pro mobil */
    }

    .grid-2 {
        grid-template-columns: 1fr !important;
        gap: 4rem;
    }
    
    h1 { font-size: 4rem; }
    h2 { font-size: 3.2rem; }
    h3 { font-size: 2.6rem; }
    
    /* --- MOBILE NAVIGATION --- */
    .site-header {
        padding: 0.75rem 0; /* Zmenšeno o 50% na mobilu */
    }
    
    .nav-toggle-label {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        cursor: pointer;
        z-index: 1001; 
    }

    .hamburger, 
    .hamburger::before, 
    .hamburger::after {
        display: block;
        background-color: var(--clr-text-main);
        height: 2px;
        width: 24px;
        position: relative;
        transition: all var(--transition-main);
        border-radius: 2px;
    }

    .hamburger::before, 
    .hamburger::after {
        content: '';
        position: absolute;
        left: 0;
    }

    .hamburger::before { top: -8px; }
    .hamburger::after { bottom: -8px; }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--clr-bg-white);
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease-in-out;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
    }

    .main-nav li {
        width: 100%;
        text-align: center;
    }

    .main-nav a {
        display: block;
        padding: 2rem;
        font-size: 1.8rem;
        border-bottom: 1px solid var(--clr-border);
    }

    .main-nav li:last-child a {
        border-bottom: none;
    }

    .nav-toggle:checked ~ .main-nav {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .nav-toggle:checked ~ .nav-toggle-label .hamburger {
        background-color: transparent;
    }

    .nav-toggle:checked ~ .nav-toggle-label .hamburger::before {
        transform: rotate(45deg);
        top: 0;
    }

    .nav-toggle:checked ~ .nav-toggle-label .hamburger::after {
        transform: rotate(-45deg);
        bottom: 0;
    }
    
    .hero-section {
        padding-top: 10rem;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .hero-subtitle { margin-bottom: 3rem; }

    .sticky-img { position: static; margin-bottom: 3rem; }
    .work-image-col { order: -1; }
    
    .grid-pricing {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 6rem auto 0 auto;
    }
    
    .card-form { padding: 3rem; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
}

/* Small Phones (max-width: 480px) */
@media (max-width: 480px) {
    h1 { font-size: 3.4rem; }
    h2 { font-size: 2.8rem; }
    
    .hero-section { padding-top: 9rem; }

    .rounded-shadow-lg {
        border-radius: var(--border-radius);
    }

    .site-footer {
        padding-bottom: 2rem;
    }
}