/**
 * Zdravé a krásné vlasy - Main Stylesheet
 * Centrální nastavení barev a stylů
 */

/* ============================================
   CENTRÁLNÍ NASTAVENÍ
   ============================================ */

/*
   POZNÁMKA: VŠECHNY BARVY jsou načítány z databáze
   přes css/dynamic-colors.php a lze je měnit v admin panelu:
   - Primární barvy (primary, primary-light, primary-dark)
   - Sekundární barvy (secondary, secondary-light, secondary-dark)
   - Akcentní barva (accent, accent-hover)
   - Stav barvy (success, error, warning)
   - Barvy textu (text, text-light)
   - Neutrální barvy (background, white, border)
*/

:root {
    /* Typografie */
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Velikosti písma */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 2rem;      /* 32px */
    --font-size-4xl: 2.5rem;    /* 40px */

    /* Spacing */
    --spacing-xs: 0.5rem;       /* 8px */
    --spacing-sm: 1rem;         /* 16px */
    --spacing-md: 1.5rem;       /* 24px */
    --spacing-lg: 2rem;         /* 32px */
    --spacing-xl: 3rem;         /* 48px */
    --spacing-2xl: 4rem;        /* 64px */

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

body.dark-mode {
    --color-primary: #d4a9ff;
    --color-primary-light: #e2bfff;
    --color-primary-dark: #b277f0;
    --color-secondary: #f1c987;
    --color-secondary-light: #f6dcae;
    --color-secondary-dark: #d8ad63;
    --color-accent: #ff9f7c;
    --color-accent-hover: #ff8d64;
    --color-text: #e8e9f7;
    --color-text-light: #b4b7d3;
    --color-background: #0f1121;
    --color-white: #171a2f;
    --color-border: #313757;
    --color-section-light: #141a2d;
    --color-card-background: #1b2138;
    --color-hero-overlay-primary: rgba(74, 48, 112, 0.88);
    --color-hero-overlay-secondary: rgba(54, 64, 138, 0.82);
    --color-hero-overlay-light: rgba(74, 48, 112, 0.55);
    --color-hero-overlay-secondary-light: rgba(54, 64, 138, 0.45);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.42);
}

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

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: 100px; /* Offset pro sticky header + prostor pro nadpis */
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

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

.section {
    padding: var(--spacing-2xl) 0;
}

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

.section-dark {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav a {
    color: var(--color-text);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-base);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
    transition: width var(--transition-base);
}

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

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

.nav a.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-text);
    cursor: pointer;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-left: auto;
    margin-right: var(--spacing-sm);
}

.theme-toggle:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-hero-overlay-primary, rgba(139, 69, 139, 0.85)) 0%, var(--color-hero-overlay-secondary, rgba(186, 85, 211, 0.75)) 100%),
                url('https://images.unsplash.com/photo-1560066984-138dadb4c035?q=80&w=1974&auto=format&fit=crop') center/cover no-repeat;
    color: var(--color-white);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-hero-overlay-light, rgba(139, 69, 139, 0.4)) 0%, var(--color-hero-overlay-secondary-light, rgba(186, 85, 211, 0.3)) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero-superheadline {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-secondary-light);
    margin-bottom: var(--spacing-xs);
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-image {
    position: absolute;
    right: 0;
    top: 0;
    width: 50%;
    height: 100%;
    object-fit: cover;
    opacity: 0.2;
}

/* ============================================
   TRUST BAR
   ============================================ */

.trust-bar {
    background-color: var(--color-white);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.trust-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.trust-item svg,
.trust-item .icon {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

/* ============================================
   CARDS & GRID
   ============================================ */

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background-color: var(--color-card-background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    position: relative;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-footer {
    margin-top: auto;
    padding-top: var(--spacing-md);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.card-icon {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.card h3 {
    margin-bottom: var(--spacing-sm);
}

.card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

/* ============================================
   SECTIONS SPECIFIC
   ============================================ */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* Badge/Label */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-secondary-light);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

/* Price */
.price {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
}

.price-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    font-weight: 400;
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

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

.footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer h4 {
    color: var(--color-secondary-light);
    margin-bottom: var(--spacing-md);
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.footer a:hover {
    color: var(--color-white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

/* ============================================
   UTILITIES
   ============================================ */

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* ============================================
   STICKY PHONE BUTTON (Mobile)
   ============================================ */

.sticky-phone {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: var(--color-accent);
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: 1.5rem;
    text-align: center;
    line-height: 60px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
}

.sticky-phone:hover {
    transform: scale(1.1);
    background-color: var(--color-accent-hover);
}

/* Phone Modal */
.phone-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.phone-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.phone-modal-content {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideUp 0.3s ease;
}

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

.phone-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--color-text-light);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    line-height: 32px;
    text-align: center;
    transition: all var(--transition-fast);
}

.phone-modal-close:hover {
    color: var(--color-text);
    transform: rotate(90deg);
}

.phone-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.phone-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.phone-option:hover {
    border-color: var(--color-primary);
    background: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.phone-icon {
    font-size: 2rem;
    line-height: 1;
}

.phone-info {
    flex: 1;
}

.phone-name {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.phone-number {
    font-size: 1.25rem;
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 0.25rem;
}

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

/* ============================================
   MOBILE BOTTOM NAVIGATION
   ============================================ */

.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 0.5rem 0;
    border-top: 2px solid var(--color-border);
}

.bottom-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 0.5rem;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.5rem;
    text-decoration: none;
    color: var(--color-text-light);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
    min-width: 50px;
    flex: 1;
    background: none;
    border: none;
}

.bottom-nav-item:hover,
.bottom-nav-item.active {
    color: var(--color-primary);
    background: var(--color-secondary-light);
}

.bottom-nav-icon {
    font-size: 1.3rem;
    line-height: 1;
}

.bottom-nav-label {
    font-size: 0.65rem;
    white-space: nowrap;
}

/* Tlačítka v bottom nav (bez pozadí) */
.bottom-nav-item button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
}

/* ============================================
   MOBILE MENU OVERLAY
   ============================================ */

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: flex-end;
    animation: fadeIn 0.3s ease;
}

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

.mobile-menu-content {
    background: var(--color-white);
    width: 100%;
    max-height: 85vh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease;
    overflow-y: auto;
}

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

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 2px solid var(--color-border);
    position: sticky;
    top: 0;
    background: var(--color-white);
    z-index: 10;
}

.mobile-menu-header h3 {
    margin: 0;
    color: var(--color-text);
    font-size: 1.5rem;
}

.mobile-menu-close {
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--color-text-light);
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.mobile-menu-close:hover {
    background: var(--color-background);
    color: var(--color-text);
}

.mobile-menu-nav {
    padding: 1rem;
}

.mobile-menu-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    margin-bottom: 0.5rem;
    background: var(--color-background);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text);
    font-size: 1.1rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.mobile-menu-item:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateX(8px);
}

.mobile-menu-item.active {
    background: var(--color-secondary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
    font-weight: 600;
}

.mobile-menu-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border-radius: var(--radius-md);
}

.mobile-menu-item:hover .mobile-menu-icon {
    background: rgba(255, 255, 255, 0.2);
}

.demo-static-hidden {
    display: none !important;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;      /* 32px */
        --font-size-3xl: 1.75rem;   /* 28px */
        --spacing-2xl: 3rem;        /* 48px */
    }

    /* Desktop menu skrýt na mobilu */
    .nav {
        display: none !important;
    }

    .menu-toggle {
        display: none;
    }

    /* Zobrazit bottom navigation */
    .bottom-nav {
        display: block;
    }

    /* Přidat padding na body kvůli bottom nav */
    body {
        padding-bottom: 70px;
    }

    /* Skrýt sticky phone button - máme ho v bottom nav */
    .sticky-phone {
        display: none !important;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: 500px;
    }

    .hero-image {
        width: 100%;
        opacity: 0.1;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

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

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