/* ============================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================ */
:root {
  /* Brand Colors */
  --primary-violet: #3c003c;
  --accent-pink: #7b2a94;
  --accent-pink2: #cf8ac4;
  --accent-pink3: #c77dff;
  --accent-pink4: #cb5ccd;
  --light-purple: #7d01bb;
  --dark-purple: #150020;
  --dark-violet: #100020;
  --medium-violet: #240f3f;
  --medium-purple: #310f32;
  --accent-blue: #7F7FD5; 
  --accent-blue2:#5f0bf0; 
  --accent-violet:#b796e5; 
  --accent-violet2:#c4a6ee; 
  
  /* Neutral Colors */
  --bg-dark: #1e1e1e;
  --bg-card: #292e32;
  --bg-hover: rgb(17, 13, 22);
  --text-light: #fff;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Shadows */
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.6);
  --shadow-button: 0 2px 4px rgba(0, 0, 0, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  
  /* Typography */
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  
  /* Layout */
  --container-sm: 340px;
  --container-md: 400px;
  --image-size-md: 200px;
}

/* ============================================
   LAYOUT COMPONENTS
   ============================================ */


body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.header {
  background: var(--primary-violet);
}
.is-hidden { display: none !important; }

/* ============================================
   BOOTSTRAP
   ============================================ */

.navbar-brand {
  color: var(--text-light) !important;
}

.navbar-nav .nav-link {
  color: var(--text-light) !important;
}

.navbar-nav .nav-link:hover {
  color: var(--accent-pink) !important;
}

.dropdown-menu {
  background-color: var(--bg-card);
  border: 1px solid var(--accent-pink);
}

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

.dropdown-item:hover {
  background-color: var(--bg-hover);
  color: var(--accent-pink);
}

/* ============================================
   BUTTON SYSTEM
   ============================================ */

/* Base Button */
.btn-base {
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-button);
}

/* Button Variants */
.btn-primary {
  border: 2px solid var(--accent-pink);
  color: var(--accent-pink);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--bg-hover);
  color: var(--text-light);
  transform: translateY(-1px);
}
.btn-roca {
  border: 1px solid var(--accent-pink);
  color: white;
}

.btn-roca:hover,
.btn-roca:focus {
  background-color: #391749;
  color: var(--text-light);
  transform: translateY(-1px);
}
.btn-game {
  border: 1px solid var(--accent-pink);
  background-color: #391749;
  color: white;
}

.btn-game:hover,
.btn-game:focus {
  background-color: #471d5b;
  color: var(--text-light);
  transform: translateY(-1px);
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent-pink);
  font-size: var(--font-size-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  box-shadow: none;
  text-decoration: none;
}

.btn-link:hover,
.btn-link:focus {
  color: var(--text-light);
  border: 2px solid var(--accent-pink);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  background-color: var(--dark-purple);
}

/* ============================================
   AUTHENTICATION LAYOUTS
   ============================================ */

/* Login/Signup Controls */
.auth-controls {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

/* Login Box (Guest State) */
.login-container {
  margin: var(--spacing-3xl) auto var(--spacing-3xl) auto;
  width: 100%;
  max-width: var(--container-sm);
}

.login-box {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--spacing-lg);
}

/* Image Container */
.image-container {
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
  border-radius: var(--radius-md);
}

.image-container img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.form-check {
    text-align: left;
    font-size: var(--font-size-sm, 0.9em);
    color: var(--text-light-secondary, #bdc3c7);
}
.form-check a {
    color: var(--accent-pink);
    text-decoration: underline;
    cursor: pointer;
}
.form-check a:hover {
    color: var(--accent-pink3);
    text-decoration: underline;
}
.form-check-input {
    margin-right: var(--spacing-sm, 0.5rem);
}

    .modal-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.8);
        display: none;
        align-items: center;
        justify-content: center;
        z-index: 2000;
        padding: 20px;
        box-sizing: border-box;
    }
    .modal-overlay.active {
        display: flex;
    }
    .modal-content {
        background: var(--bg-card, #292e32);
        color: var(--text-light, #ecf0f1);
        padding: var(--spacing-xl, 2rem);
        border-radius: var(--radius-lg, 12px);
        width: 100%;
        max-width: 800px;
        max-height: 90vh;
        box-shadow: var(--shadow-card);
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .modal-close-btn {
        position: absolute;
        top: 10px;
        right: 20px;
        background: none;
        border: none;
        color: var(--text-light);
        font-size: 2.5rem;
        cursor: pointer;
        line-height: 1;
    }
    .modal-content h1 {
        margin-top: 0;
        margin-bottom: 25px;
        color: var(--accent-pink3, #c77dff);
        font-size: 1.8rem;
    }
    .modal-scroll-content {
        overflow-y: auto; /* Povolí scrollování, pokud je text delší */
        padding-right: 15px; /* Místo pro scrollbar */
        line-height: 1.7;
    }

    /* =========================================
   Styly pro Flash Messages (notifikace)
   ========================================= */

/* Základní styl pro všechny zprávy */
.flash-message {
    padding: 1rem;
    margin-bottom: 1.5rem; /* Odsazení od zbytku formuláře */
    border: 1px solid transparent;
    border-radius: 8px; /* Zakulacené rohy */
    text-align: center;
    font-weight: 500;
    width: 100%;
}

/* Styl pro chybové hlášky (typ: 'error') */
.flash-message.error {
    color: #842029; /* Tmavě červený text */
    background-color: #f8d7da; /* Světle červené pozadí */
    border-color: #f5c2c7; /* Červený rámeček */
}

/* Styl pro úspěšné hlášky (typ: 'success') */
.flash-message.success {
    color: #0f5132; /* Tmavě zelený text */
    background-color: #d1e7dd; /* Světle zelené pozadí */
    border-color: #badbcc; /* Zelený rámeček */
}

/* Můžete si přidat i další typy, např. 'info' (modrá) nebo 'warning' (žlutá) */
.flash-message.info {
    color: #055160;
    background-color: #cff4fc;
    border-color: #b6effb;
}

/* ============================================
   REGISTERED USER COMPONENTS
   ============================================ */

/* Registered User Dashboard */
.user-dashboard {
  background: linear-gradient(135deg, var(--dark-purple), var(--medium-purple), var(--bg-dark));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--spacing-md);
  margin: var(--spacing-xl) auto;
  max-width: var(--container-md);
  text-align: center;
}

.user-dashboard h3 {
  color: var(--accent-pink);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
}

.user-avatar {
  width: var(--image-size-md);
  height: var(--image-size-md);
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin: 0 auto var(--spacing-lg) auto;
  display: block;
}

.user-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  margin-top: var(--spacing-2xl);
  flex-wrap: wrap;
}

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

@media (max-width: 768px) {
  .user-actions {
    justify-content: center;
  }
  
  :root {
    --container-sm: 300px;
    --container-md: 350px;
    --image-size-md: 150px;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-3xl: 2rem;
    --spacing-xl: 1.5rem;
  }
}

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

.text-center { text-align: center; }
.text-primary { color: var(--accent-pink); }
.text-light { color: var(--text-light); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* ============================================
   FOCUS STATES & ACCESSIBILITY
   ============================================ */

/* Remove default browser focus outline and add custom ones */
*:focus {
  outline: none;
}

/* Custom focus ring */
.focus-ring {
  box-shadow: 0 0 0 3px rgba(205, 92, 181, 0.5);
  border-radius: var(--radius-sm);
}

/* Button focus states */
.btn-base:focus {
  box-shadow: 0 0 0 3px rgba(205, 92, 181, 0.5);
  outline: none;
}

.btn-link:focus {
  box-shadow: 0 0 0 2px rgba(205, 92, 181, 0.5);
  outline: none;
}

/* Navigation focus states */
.nav-link:focus {
  color: var(--accent-pink) !important;
  background-color: var(--bg-hover);
  border-radius: var(--radius-sm);
  box-shadow: 0 0 0 2px rgba(205, 92, 181, 0.5);
  outline: none;
}

.navbar-brand:focus {
  box-shadow: 0 0 0 2px rgba(205, 92, 181, 0.5);
  border-radius: var(--radius-sm);
  outline: none;
}

/* Dropdown focus states */
.dropdown-toggle:focus {
  box-shadow: 0 0 0 2px rgba(205, 92, 181, 0.5);
  background-color: var(--bg-hover);
  outline: none;
}

.dropdown-item:focus {
  background-color: var(--bg-hover);
  color: var(--accent-pink);
  outline: none;
}

/* Form elements*/
input:focus,
textarea:focus,
select:focus {
  border: 2px solid var(--accent-pink);
  box-shadow: 0 0 0 2px rgba(205, 92, 181, 0.3);
  outline: none;
}

/* Image focus states (for accessible images) */
img:focus {
  box-shadow: 0 0 0 2px rgba(205, 92, 181, 0.5);
  outline: none;
}


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

.footer {
    background: linear-gradient(135deg, var(--primary-violet), var(--dark-purple));
    color: var(--text-light);
    margin-top: auto;
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--accent-pink);
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3);
}

.footer-content {
    text-align: center;
    padding: 0 var(--spacing-lg);
}

.footer-content p {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: var(--font-size-base);
    line-height: 1.6;
}

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

.footer-tagline {
    font-style: italic;
    color: var(--accent-pink);
    font-size: var(--font-size-md);
    font-weight: 500;
    margin-top: var(--spacing-sm) !important;
}

/* Responsive footer */
@media (max-width: 768px) {
    .footer {
        padding: var(--spacing-sm) 0;
    }
    
    .footer-content {
        padding: 0 var(--spacing-md);
    }
    
    .footer-content p {
        font-size: var(--font-size-sm);
    }
    
    .footer-tagline {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .footer-content p {
        font-size: 0.8rem;
    }
}

/* ============================================
   LIGHT MODE STYLES (Základní definice)
   ============================================ */
.light-mode {
  /* Přepis hlavních barev pozadí a textu */
  --bg-dark: #f4f4f9;        
  --bg-card: #ffffff;        
  --bg-hover: #e9e9f2;       
  --text-light: #212529;     
  
  /* Přepis stínů pro lepší viditelnost na světlém pozadí */
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-button: 0 2px 4px rgba(0, 0, 0, 0.15);
}

/* --- Aplikace základních přepisů --- */
.light-mode, 
.light-mode body {
    background-color: var(--bg-dark);
    color: var(--text-light);
}

/* Přepisy pro nejběžnější sdílené komponenty (např. tlačítka) */
.light-mode .btn-game {
  background-color: var(--accent-pink);
  color: #ffffff;
}
.light-mode .btn-game:hover {
  background-color: var(--light-purple);
}




/* ============================================
   STYLY PRO GLOBÁLNÍ PANEL SPECIÁLNÍCH ZNAKŮ
   ============================================ */
.toggle-char-panel-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--accent-pink);
    color: var(--text-light);
    border: none;
    font-size: 1.5rem;
    box-shadow: var(--shadow-card);
    cursor: pointer;
    z-index: 1999; /* Pod panelem, ale nad většinou obsahu */
    transition: transform 0.2s ease;
}

.toggle-char-panel-btn:hover {
    transform: scale(1.1);
}

.global-char-panel {
    position: fixed;
    bottom: 80px; /* Umístění nad kulatým tlačítkem */
    right: 20px;
    background-color: var(--bg-card);
    padding: 12px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    z-index: 2000;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    max-width: 250px;
    border: 1px solid var(--medium-purple);
    transition: opacity 0.3s, transform 0.3s;
    transform: translateY(10px);
    opacity: 0;
    pointer-events: none;
}

.global-char-panel:not(.is-hidden) {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

/* Styly pro samotná tlačítka (podobné jako minule) */
.global-char-panel .char-btn {
    background-color: var(--dark-purple);
    border: 1px solid var(--medium-purple);
    color: var(--accent-violet2);
    font-size: 1.2rem;
    font-weight: bold;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.global-char-panel .char-btn:hover {
    background-color: var(--primary-violet);
    border-color: var(--accent-pink);
    color: var(--text-light);
}

.global-char-panel .char-btn-close {
    grid-column: 5 / 6; /* Umístí zavírací tlačítko na konec */
    color: #ff7b7b;
}
.global-char-panel .char-btn-close:hover {
    background-color: #5d2222;
}

/* Light mode přepisy */
.light-mode .toggle-char-panel-btn {
    background-color: var(--primary-violet);
}

.light-mode .global-char-panel {
    background-color: var(--bg-card);
    border-color: #ddd;
}
.light-mode .global-char-panel .char-btn {
    background-color: #f4f4f9;
    color: var(--text-light);
    border-color: #ccc;
}
.light-mode .global-char-panel .char-btn:hover {
    background-color: var(--accent-pink);
    color: #fff;
}