/**
 * 🚀 ThibEquation Framework - Styles Bandeau BÊTA Spectaculaire
 * Version: 2.0.0-BETA
 * Auteur: Thib4204
 * 
 * Styles pour le système de bandeau de transparence scientifique
 * avec animations cosmiques et effets visuels avant-gardistes
 */

/* ============================================
   VARIABLES CSS ET THÈMES
   ============================================ */

:root {
    /* Couleurs Thème Cosmic (Défaut) */
    --beta-banner-bg-cosmic: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --beta-banner-bg-cosmic-dark: linear-gradient(135deg, #4a5fbf 0%, #5a3a7f 100%);
    --beta-banner-text-cosmic: #ffffff;
    --beta-banner-accent-cosmic: #ffd700;
    
    /* Couleurs Thème Scientific */
    --beta-banner-bg-scientific: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    --beta-banner-text-scientific: #e0e7ff;
    --beta-banner-accent-scientific: #60a5fa;
    
    /* Couleurs Thème Minimal */
    --beta-banner-bg-minimal: #2d3748;
    --beta-banner-text-minimal: #e2e8f0;
    --beta-banner-accent-minimal: #f7fafc;
    
    /* Animations et Timings */
    --beta-banner-transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --beta-banner-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Espacements */
    --beta-banner-padding: 1.5rem;
    --beta-banner-gap: 1.5rem;
    
    /* Z-index */
    --beta-banner-z-index: 9999;
}

/* ============================================
   STYLES DE BASE DU BANDEAU
   ============================================ */

.beta-banner {
    position: fixed;
    left: 0;
    right: 0;
    z-index: var(--beta-banner-z-index);
    opacity: 0;
    transform: translateY(-100%);
    transition: all var(--beta-banner-transition);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Position Top */
.beta-banner--top {
    top: 0;
}

/* Position Bottom */
.beta-banner--bottom {
    bottom: 0;
    transform: translateY(100%);
}

/* État Visible */
.beta-banner--visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   THÈMES VISUELS
   ============================================ */

/* Thème Cosmic (Défaut - Spectaculaire) */
.beta-banner--cosmic {
    background: var(--beta-banner-bg-cosmic);
    color: var(--beta-banner-text-cosmic);
    position: relative;
    overflow: hidden;
}

.beta-banner--cosmic::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: cosmicStars 20s linear infinite;
    pointer-events: none;
}

@keyframes cosmicStars {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.beta-banner--cosmic::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.1) 50%, 
        transparent 100%);
    animation: cosmicShimmer 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes cosmicShimmer {
    0%, 100% { left: -100%; }
    50% { left: 100%; }
}

/* Thème Scientific (Sobre et Professionnel) */
.beta-banner--scientific {
    background: var(--beta-banner-bg-scientific);
    color: var(--beta-banner-text-scientific);
    border-bottom: 3px solid var(--beta-banner-accent-scientific);
}

/* Thème Minimal (Épuré) */
.beta-banner--minimal {
    background: var(--beta-banner-bg-minimal);
    color: var(--beta-banner-text-minimal);
    border-bottom: 2px solid var(--beta-banner-accent-minimal);
}

/* ============================================
   CONTENEUR ET DISPOSITION
   ============================================ */

.beta-banner__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--beta-banner-padding);
    position: relative;
}

.beta-banner__content {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: var(--beta-banner-gap);
    align-items: center;
    transition: all var(--beta-banner-transition);
}

/* ============================================
   BADGE BÊTA
   ============================================ */

.beta-banner__badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
    }
}

.beta-banner__badge-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    color: #ffd700;
    animation: iconRotate 3s ease-in-out infinite;
}

@keyframes iconRotate {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-5deg); }
    75% { transform: rotate(5deg); }
}

.beta-banner__badge-text {
    font-weight: 800;
    font-size: 1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   MESSAGE PRINCIPAL
   ============================================ */

.beta-banner__message {
    flex: 1;
    min-width: 0; /* Pour permettre le shrink */
}

.beta-banner__title {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.3;
    color: inherit;
}

.beta-banner__text {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
    opacity: 0.95;
}

.beta-banner__text strong {
    font-weight: 700;
    color: var(--beta-banner-accent-cosmic);
}

/* ============================================
   LIENS D'ACTION
   ============================================ */

.beta-banner__actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.beta-banner__link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.beta-banner__link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.beta-banner__link:hover::before {
    width: 300px;
    height: 300px;
}

.beta-banner__link svg {
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

.beta-banner__link span {
    position: relative;
    z-index: 1;
}

/* Lien Primaire */
.beta-banner__link--primary {
    background: rgba(255, 255, 255, 0.95);
    color: #4a5fbf;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.beta-banner__link--primary:hover {
    background: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

/* Lien Secondaire */
.beta-banner__link--secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.beta-banner__link--secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

/* ============================================
   BOUTONS DE CONTRÔLE
   ============================================ */

.beta-banner__collapse-btn,
.beta-banner__expand-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: #ffffff;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.beta-banner__collapse-btn:hover,
.beta-banner__expand-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

.beta-banner__collapse-btn:active,
.beta-banner__expand-btn:active {
    transform: scale(0.95);
}

.beta-banner__collapse-btn svg,
.beta-banner__expand-btn svg {
    transition: transform 0.3s ease;
}

.beta-banner__collapse-btn:hover svg {
    transform: translateY(-2px);
}

.beta-banner__expand-btn:hover svg {
    transform: translateY(2px);
}

/* ============================================
   ÉTAT RÉDUIT (COLLAPSED)
   ============================================ */

.beta-banner--collapsed .beta-banner__content {
    display: none;
}

.beta-banner--collapsed .beta-banner__collapsed-info {
    display: flex;
}

.beta-banner__collapsed-info {
    display: none;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
}

.beta-banner__version {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.9;
}

.beta-banner__status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ffd700;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.6);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.6;
        transform: scale(1.2);
    }
}

/* ============================================
   ANIMATION D'ATTENTION
   ============================================ */

.beta-banner--attention {
    animation: bannerAttention 1s ease-in-out;
}

@keyframes bannerAttention {
    0%, 100% { 
        transform: translateY(0);
    }
    10%, 30%, 50% { 
        transform: translateY(-5px);
    }
    20%, 40% { 
        transform: translateY(0);
    }
}

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

@media (max-width: 1200px) {
    .beta-banner__content {
        grid-template-columns: auto 1fr auto;
        gap: 1rem;
    }
    
    .beta-banner__actions {
        grid-column: 2 / 3;
    }
}

@media (max-width: 768px) {
    :root {
        --beta-banner-padding: 1rem;
        --beta-banner-gap: 1rem;
    }
    
    .beta-banner__content {
        grid-template-columns: 1fr auto;
        gap: 1rem;
    }
    
    .beta-banner__badge {
        grid-column: 1 / -1;
        justify-self: start;
    }
    
    .beta-banner__message {
        grid-column: 1 / -1;
    }
    
    .beta-banner__actions {
        grid-column: 1 / -1;
        width: 100%;
    }
    
    .beta-banner__link {
        flex: 1;
        justify-content: center;
        font-size: 0.85rem;
        padding: 0.6rem 1rem;
    }
    
    .beta-banner__title {
        font-size: 1rem;
    }
    
    .beta-banner__text {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .beta-banner__actions {
        flex-direction: column;
    }
    
    .beta-banner__link {
        width: 100%;
    }
    
    .beta-banner__badge {
        padding: 0.5rem 1rem;
    }
    
    .beta-banner__badge-text {
        font-size: 0.9rem;
    }
}

/* ============================================
   ACCESSIBILITÉ
   ============================================ */

/* Lecteur d'écran uniquement */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible pour navigation clavier */
.beta-banner__link:focus,
.beta-banner__collapse-btn:focus,
.beta-banner__expand-btn:focus {
    outline: 3px solid #ffd700;
    outline-offset: 2px;
}

/* Réduction du mouvement pour accessibilité */
@media (prefers-reduced-motion: reduce) {
    .beta-banner,
    .beta-banner__badge,
    .beta-banner__link,
    .beta-banner__collapse-btn,
    .beta-banner__expand-btn {
        animation: none;
        transition: none;
    }
    
    .beta-banner--cosmic::before,
    .beta-banner--cosmic::after {
        animation: none;
    }
}

/* Mode contraste élevé */
@media (prefers-contrast: high) {
    .beta-banner {
        border: 3px solid currentColor;
    }
    
    .beta-banner__badge {
        border-width: 3px;
    }
    
    .beta-banner__link {
        border: 2px solid currentColor;
    }
}

/* ============================================
   MODE SOMBRE (Si nécessaire)
   ============================================ */

@media (prefers-color-scheme: dark) {
    .beta-banner--minimal {
        background: #1a202c;
        color: #f7fafc;
    }
}

/* ============================================
   PRINT (Masquer à l'impression)
   ============================================ */

@media print {
    .beta-banner {
        display: none !important;
    }
}