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

:root {
    --socida-black: #000000;
    --socida-dark-gray: #1a1a1a;
    --socida-gray: #F5F5F5;
    --socida-white: #FFFFFF;
    --socida-border: #CCCCCC;
    --socida-accent: #E74C3C;
    --socida-success: #27AE60;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--socida-gray);
    min-height: 100vh;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
}

/* Animations */
.step {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.step.active {
    display: block;
}

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

/* Cards */
.welcome-card,
.content-card {
    background: var(--socida-white);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Header avec logo SOCIDA */
.logo-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo-socida {
    height: 80px;
    width: auto;
}

h1 {
    color: var(--socida-black);
    margin-bottom: 15px;
    font-size: 2.2em;
    text-align: center;
    font-weight: 700;
}

h2 {
    color: var(--socida-black);
    margin-bottom: 20px;
    font-size: 1.8em;
    font-weight: 700;
}

h3 {
    color: var(--socida-dark-gray);
    margin-bottom: 10px;
    font-size: 1.3em;
    font-weight: 600;
}

p {
    color: #666;
    margin-bottom: 25px;
    font-size: 1.05em;
    text-align: center;
}

/* Form Groups */
.form-group {
    margin-bottom: 30px;
}

label {
    display: block;
    color: var(--socida-black);
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 1.1em;
}

input[type="text"] {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--socida-border);
    border-radius: 8px;
    font-size: 1em;
    transition: all 0.3s;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--socida-black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

/* Sélection des marques */
.brand-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.brand-btn {
    background: var(--socida-white);
    border: 3px solid var(--socida-border);
    border-radius: 12px;
    padding: 25px 15px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-family: inherit;
}

.brand-logo {
    font-size: 3em;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-btn span {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--socida-black);
}

.brand-btn:hover {
    border-color: var(--socida-black);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.brand-btn.selected {
    border-color: var(--socida-black);
    background: linear-gradient(135deg, var(--socida-black) 0%, var(--socida-dark-gray) 100%);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.brand-btn.selected .brand-logo {
    filter: grayscale(1) brightness(3);
}

.brand-btn.selected span {
    color: var(--socida-white);
}

/* Sélection des activités */
.activity-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.activity-btn,
.activity-card {
    background: var(--socida-white);
    border: 3px solid var(--socida-border);
    border-radius: 12px;
    padding: 30px 20px;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.activity-icon {
    font-size: 3em;
    margin-bottom: 15px;
}

.activity-btn h3,
.activity-card h3 {
    margin-bottom: 10px;
    color: var(--socida-black);
}

.activity-btn p,
.activity-card p {
    color: #666;
    font-size: 0.95em;
    margin: 0;
}

.activity-btn:hover,
.activity-card:hover {
    border-color: var(--socida-black);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.activity-btn.selected,
.activity-card.selected {
    border-color: var(--socida-black);
    background: linear-gradient(135deg, var(--socida-black) 0%, var(--socida-dark-gray) 100%);
}

.activity-btn.selected h3,
.activity-btn.selected p,
.activity-card.selected h3,
.activity-card.selected p {
    color: var(--socida-white);
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-action {
    padding: 15px 35px;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--socida-black) 0%, var(--socida-dark-gray) 100%);
    color: var(--socida-white);
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--socida-white);
    color: var(--socida-black);
    border: 2px solid var(--socida-black);
}

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

.btn-large {
    font-size: 1.3em;
    padding: 20px 40px;
}

.button-group {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.button-group .btn-secondary {
    flex: 0 0 auto;
    width: auto;
}

.button-group .btn-primary {
    flex: 1;
}

/* Summary & Info boxes */
.summary-card,
.results-summary {
    background: var(--socida-gray);
    border-radius: 8px;
    padding: 25px;
    margin: 25px 0;
}

.summary-item,
.result-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--socida-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.summary-item:last-child,
.result-item:last-child {
    border-bottom: none;
}

.summary-item strong,
.result-item strong {
    color: var(--socida-black);
    font-weight: 600;
}

.info-box {
    background: #E8F4F8;
    border-left: 4px solid #3498DB;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

.info-box.success {
    background: #E8F8F5;
    border-left-color: var(--socida-success);
}

.info-box p {
    color: #333;
    margin-bottom: 10px;
    text-align: left;
}

.info-box p:last-child {
    margin-bottom: 0;
}

/* Chat Interface */
.chat-container {
    background: var(--socida-white);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 80vh;
    max-height: 800px;
}

.chat-header {
    background: linear-gradient(135deg, var(--socida-black) 0%, var(--socida-dark-gray) 100%);
    color: var(--socida-white);
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.chat-header h2 {
    color: var(--socida-white);
    margin: 0;
    flex: 1;
}

.chat-info h3 {
    color: var(--socida-white);
    margin: 0;
    font-size: 1.3em;
}

.chat-details {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9em;
    margin-top: 5px;
}

.chat-progress {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 25px;
    background: var(--socida-gray);
}

/* API Key Notice */
.api-key-notice {
    background: #fff3cd;
    border: 2px solid #ffc107;
    border-radius: 10px;
    padding: 20px;
    margin: 20px 25px;
    display: none;
}

.api-key-notice.show {
    display: block;
    animation: slideIn 0.3s ease-out;
}

.api-key-notice p {
    margin: 0 0 10px 0;
    color: #856404;
    font-weight: 600;
    text-align: left;
}

#api-key-input {
    width: calc(100% - 180px);
    padding: 12px;
    border: 2px solid #ffc107;
    border-radius: 8px;
    margin-right: 10px;
    font-size: 0.95em;
}

.btn-save-key {
    padding: 12px 24px;
    background: #ffc107;
    color: #856404;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95em;
    transition: all 0.3s;
}

.btn-save-key:hover {
    background: #e0a800;
    transform: translateY(-2px);
}

.message {
    margin-bottom: 20px;
    display: flex;
    gap: 12px;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--socida-black);
    color: var(--socida-white);
}

.message.assistant .message-avatar {
    background: #3498DB;
    color: var(--socida-white);
}

.message-content {
    background: var(--socida-white);
    padding: 15px 18px;
    border-radius: 12px;
    max-width: 75%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.message.user .message-content {
    background: var(--socida-black);
    color: var(--socida-white);
    margin-left: auto;
}

.message.assistant .message-content {
    background: var(--socida-white);
    color: #333;
}

.message-content p {
    margin: 0;
    text-align: left;
    line-height: 1.5;
}

.typing-indicator {
    display: flex;
    gap: 5px;
    padding: 10px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #999;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* Action Buttons */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 15px 20px;
    background: var(--socida-gray);
    border-top: 2px solid var(--socida-border);
    border-bottom: 2px solid var(--socida-border);
}

.action-btn {
    padding: 10px 18px;
    background: var(--socida-white);
    border: 2px solid var(--socida-border);
    border-radius: 20px;
    font-size: 0.95em;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--socida-black);
    font-weight: 500;
    white-space: nowrap;
}

.action-btn:hover {
    background: var(--socida-black);
    color: var(--socida-white);
    border-color: var(--socida-black);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

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

.chat-input-container {
    display: flex;
    gap: 12px;
    padding: 20px 25px;
    background: var(--socida-white);
    border-top: 2px solid var(--socida-gray);
}

.chat-input-container input {
    flex: 1;
    padding: 15px;
    border: 2px solid var(--socida-border);
    border-radius: 25px;
    font-size: 1em;
}

.chat-input-container input:focus {
    outline: none;
    border-color: var(--socida-black);
}

.btn-send {
    background: linear-gradient(135deg, var(--socida-black) 0%, var(--socida-dark-gray) 100%);
    color: var(--socida-white);
    border: none;
    border-radius: 25px;
    padding: 15px 30px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-send:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

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

#send-btn {
    background: var(--socida-black);
    color: var(--socida-white);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
}

#send-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

#send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.chat-actions {
    display: flex;
    gap: 12px;
    padding: 15px 25px;
    background: var(--socida-gray);
    border-top: 2px solid var(--socida-border);
}

.btn-action {
    flex: 1;
    background: var(--socida-white);
    color: var(--socida-black);
    border: 2px solid var(--socida-black);
    padding: 12px 20px;
    font-size: 0.95em;
}

.btn-action:hover {
    background: var(--socida-black);
    color: var(--socida-white);
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .welcome-card,
    .content-card {
        padding: 25px;
    }
    
    h1 {
        font-size: 1.6em;
    }
    
    h2 {
        font-size: 1.4em;
    }
    
    .brand-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .activity-selection {
        grid-template-columns: 1fr;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .button-group .btn-secondary {
        width: 100%;
    }
    
    .chat-container {
        height: 70vh;
    }
    
    .message-content {
        max-width: 85%;
    }
    
    .api-key-notice {
        margin: 15px;
        padding: 15px;
    }
    
    #api-key-input {
        width: 100%;
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .btn-save-key {
        width: 100%;
    }
}

/* Styles spécifiques pour l'application de formation */
.brand-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.brand-card {
    background: var(--socida-white);
    border: 3px solid var(--socida-border);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 150px;
}

.brand-card:hover {
    border-color: var(--socida-black);
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.brand-card.selected {
    border-color: var(--socida-black);
    background: var(--socida-gray);
    border-width: 4px;
}

.brand-logo {
    width: 100%;
    max-width: 120px;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.brand-card h3 {
    margin: 0;
    font-size: 1.2em;
    color: var(--socida-black);
}

.activity-selection {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.results-box {
    background: var(--socida-gray);
    border-radius: 8px;
    padding: 25px;
    margin: 20px 0;
}

.results-box h3 {
    margin-top: 0;
    margin-bottom: 20px;
    color: var(--socida-black);
}

.activity-cards-compact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.activity-card-compact {
    background: var(--socida-white);
    border: 2px solid var(--socida-border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.activity-card-compact:hover {
    border-color: var(--socida-black);
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.activity-icon-compact {
    font-size: 2em;
    margin-bottom: 10px;
}

.activity-card-compact h4 {
    margin: 0;
    font-size: 1em;
    color: var(--socida-black);
}

@media (max-width: 768px) {
    .brand-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .activity-selection,
    .activity-cards-compact {
        grid-template-columns: 1fr;
    }
}

/* ============================
   MENU HAMBURGER
   ============================ */
.header-menu {
    position: relative;
}

.btn-menu {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hamburger-icon {
    width: 25px;
    height: 2px;
    background: var(--socida-black);
    position: relative;
    display: block;
    transition: all 0.3s;
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    width: 25px;
    height: 2px;
    background: var(--socida-black);
    position: absolute;
    left: 0;
    transition: all 0.3s;
}

.hamburger-icon::before {
    top: -8px;
}

.hamburger-icon::after {
    top: 8px;
}

/* Hamburger blanc dans le chat header */
.chat-header .hamburger-icon,
.chat-header .hamburger-icon::before,
.chat-header .hamburger-icon::after {
    background: var(--socida-white);
}

.menu-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 10px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    min-width: 220px;
    z-index: 1000;
    overflow: hidden;
}

.menu-dropdown.show {
    display: block;
    animation: dropdownFadeIn 0.2s ease;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.menu-item {
    width: 100%;
    padding: 15px 20px;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 1em;
    color: var(--socida-black);
    transition: background 0.2s;
    display: block;
}

.menu-item:hover {
    background: var(--socida-gray);
}

.menu-item:active {
    background: var(--socida-border);
}

/* ============================
   MODAL DE RÉGLAGES
   ============================ */
.modal {
    display: none; /* Caché par défaut */
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    overflow: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: white;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 2px solid var(--socida-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5em;
    color: var(--socida-black);
}

.btn-close-modal {
    background: none;
    border: none;
    font-size: 1.8em;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.btn-close-modal:hover {
    background: #f0f0f0;
    color: var(--socida-black);
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 20px 25px;
    border-top: 2px solid var(--socida-border);
    display: flex;
    gap: 15px;
    justify-content: flex-end;
}

.modal-footer button {
    padding: 12px 24px;
}