/* Palette PUC Handball - Style "Premium Sports / Stadium" */
:root {
    --bg-deep: #06020a; /* Noir très profond, ambiance stade nocturne */
    --surface-card: rgba(18, 9, 32, 0.6); /* Violet très sombre translucide */
    --surface-input: rgba(255, 255, 255, 0.03);
    
    --violet-electric: #a855f7;
    --violet-neon: #d8b4fe;
    --violet-gradient: linear-gradient(135deg, #a855f7 0%, #7e22ce 100%);
    
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-glow: rgba(168, 85, 247, 0.3);
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    
    --success-gradient: linear-gradient(135deg, #10b981 0%, #047857 100%);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 3rem 1.5rem;
    line-height: 1.6;
    
    /* Effet "Projecteur de stade" en arrière-plan */
    background-image: 
        radial-gradient(ellipse at top, rgba(126, 34, 206, 0.15) 0%, transparent 70%),
        radial-gradient(circle at bottom right, rgba(168, 85, 247, 0.08) 0%, transparent 50%);
    background-attachment: fixed;
}

.app-container {
    max-width: 1400px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

/* --- Header : Esprit Club Pro --- */
header {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
}

header::after {
    content: '';
    width: 60px;
    height: 4px;
    background: var(--violet-gradient);
    margin: 1.5rem auto 0;
    border-radius: 4px;
    box-shadow: 0 0 15px var(--border-glow);
}

header h1 {
    font-size: 3.5rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.04em;
    margin: 0;
    background: linear-gradient(to bottom, #ffffff 40%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--violet-neon);
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

/* --- Layout Principal --- */
main {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 3rem;
    align-items: start;
}

@media (max-width: 1024px) {
    main {
        grid-template-columns: 1fr;
    }
}

/* --- Cards / Panneaux (Light Glassmorphism) --- */
.controls-panel, .preview-panel {
    background: var(--surface-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.controls-panel {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

/* Groupes de contrôles */
.control-group {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.control-group h2 {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--violet-neon);
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Ligne de séparation esthétique */
.control-group h2::after {
    content: '';
    flex-grow: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-subtle), transparent);
}

/* --- Boutons d'action (Glow & Hover dynamique) --- */
.btn {
    padding: 1.2rem;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.1);
    font-family: inherit;
    font-weight: 700;
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    color: white;
    position: relative;
    overflow: hidden;
}

.btn.success {
    background: var(--violet-gradient);
    box-shadow: 0 10px 25px -5px var(--border-glow);
    margin-top: 1rem;
}

/* Effet brillant au survol */
.btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: skewX(-20deg);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 150%;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px -5px rgba(168, 85, 247, 0.5);
    border-color: rgba(255,255,255,0.3);
}

.btn:active {
    transform: translateY(0);
}

/* --- Upload Box --- */
.file-upload-label {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-input);
    border: 1px dashed rgba(255,255,255,0.15);
    padding: 1.5rem;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.file-upload-label:hover {
    border-color: var(--violet-electric);
    background: rgba(168, 85, 247, 0.05);
    color: var(--text-primary);
    box-shadow: inset 0 0 20px rgba(168, 85, 247, 0.05);
}

.file-upload-label input[type="file"] {
    display: none;
}

/* --- Champs de formulaires (Inputs Premium) --- */
.select-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.select-wrapper label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Native select hidden when replaced by custom component */
select {
    display: none;
}

input[type="number"] {
    width: 100%;
    padding: 1rem 1.2rem;
    border-radius: 12px;
    background: var(--surface-input);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    font-size: 1.1rem;
    font-family: inherit;
    font-weight: 500;
    outline: none;
    transition: all 0.3s ease;
    appearance: none;
}

/* Effet focus très propre */
input[type="number"]:focus {
    border-color: var(--violet-electric);
    background: rgba(168, 85, 247, 0.05);
    box-shadow: 0 0 0 4px rgba(168, 85, 247, 0.15);
}

/* ============================================================
   CUSTOM SELECT — Composant Premium Sport
   ============================================================ */

.custom-select-wrapper {
    position: relative;
    width: 100%;
    user-select: none;
}

/* --- Trigger (la "boîte" visible) --- */
.custom-select-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    width: 100%;
    padding: 1rem 1.2rem;
    border-radius: 12px;
    /* Fond dégradé violet sombre */
    background: linear-gradient(135deg, rgba(30, 10, 60, 0.95) 0%, rgba(20, 7, 39, 0.98) 100%);
    border: 1px solid rgba(168, 85, 247, 0.25);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255,255,255,0.05);
}

.custom-select-trigger:hover {
    border-color: rgba(168, 85, 247, 0.6);
    background: linear-gradient(135deg, rgba(40, 15, 80, 0.98) 0%, rgba(25, 9, 50, 1) 100%);
    box-shadow: 0 4px 20px rgba(168, 85, 247, 0.2), inset 0 1px 0 rgba(255,255,255,0.08);
}

.custom-select-wrapper.open .custom-select-trigger {
    border-color: var(--violet-electric);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.2), 0 4px 20px rgba(168, 85, 247, 0.2);
}

/* --- La flèche SVG --- */
.custom-select-trigger .arrow {
    width: 18px;
    height: 18px;
    color: var(--violet-electric);
    flex-shrink: 0;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 0 4px rgba(168, 85, 247, 0.5));
}

.custom-select-wrapper.open .custom-select-trigger .arrow {
    transform: rotate(180deg);
}

/* --- Liste des options (dropdown) --- */
.custom-select-options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 1000;

    /* Fond sombre premium */
    background: linear-gradient(180deg, rgba(22, 8, 48, 0.99) 0%, rgba(14, 5, 30, 1) 100%);
    border: 1px solid var(--violet-electric);
    border-top: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: 0 0 14px 14px;
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.7),
        0 0 0 1px rgba(168, 85, 247, 0.1),
        inset 0 1px 0 rgba(255,255,255,0.03);

    /* Animation fermée par défaut */
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    max-height: 260px;
    overflow-y: auto;
}

/* Scrollbar custom */
.custom-select-options::-webkit-scrollbar {
    width: 4px;
}
.custom-select-options::-webkit-scrollbar-track {
    background: transparent;
}
.custom-select-options::-webkit-scrollbar-thumb {
    background: rgba(168, 85, 247, 0.4);
    border-radius: 4px;
}

/* --- État ouvert : animation d'entrée --- */
.custom-select-wrapper.open .custom-select-options {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

/* --- Chaque option individuelle --- */
.custom-select-option {
    padding: 0.9rem 1.2rem;
    font-size: 0.95rem;
    font-weight: 500;
    font-family: inherit;
    color: rgba(240, 230, 255, 0.75);
    cursor: pointer;
    transition: all 0.18s ease;
    letter-spacing: 0.03em;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);

    /* Indicateur gauche invisible par défaut */
    padding-left: 1.5rem;
}

.custom-select-option::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--violet-electric);
    opacity: 0;
    transition: opacity 0.18s ease;
    border-radius: 0 2px 2px 0;
}

.custom-select-option:last-child {
    border-bottom: none;
}

.custom-select-option:hover {
    background: rgba(168, 85, 247, 0.15);
    color: #ffffff;
    padding-left: 2rem;
}

.custom-select-option:hover::before {
    opacity: 1;
}

/* --- Option sélectionnée --- */
.custom-select-option.selected {
    background: rgba(168, 85, 247, 0.2);
    color: var(--violet-neon);
    font-weight: 700;
}

.custom-select-option.selected::before {
    opacity: 1;
    background: var(--violet-neon);
}

/* Ajustements pour les inputs numériques */
input[type="number"] {
    font-size: 1.25rem;
    font-weight: 700;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}

/* --- Preview Area (La Star de l'écran) --- */
.preview-panel {
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Lueur d'ambiance derrière le canvas */
.preview-panel::before {
    content: '';
    position: absolute;
    width: 50%;
    height: 50%;
    background: var(--violet-electric);
    filter: blur(120px);
    opacity: 0.15;
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
    animation: pulseGlow 6s infinite alternate;
}

@keyframes pulseGlow {
    from { opacity: 0.1; transform: scale(0.9); }
    to { opacity: 0.2; transform: scale(1.1); }
}

.canvas-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    position: relative;
    z-index: 1;
    /* Un fond très sombre avec une grille minimaliste */
    background-color: #000;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 30px 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255,255,255,0.05);
}

canvas {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    display: block;
    border-radius: 12px;
}