/* Portail IA — Style type ChatGPT */

:root {
    --bg-primary: #f7f7f8;
    --bg-secondary: #ffffff;
    --bg-sidebar: #f0f0f0;
    --text-primary: #0d0d0d;
    --text-secondary: #6e6e80;
    --border: #e5e5e5;
    --accent: #10a37f;
    --accent-hover: #0d8c6d;
    --input-bg: #ffffff;
    --shadow: rgba(0,0,0,.08);
}

[data-theme="dark"] {
    --bg-primary: #212121;
    --bg-secondary: #2d2d2d;
    --bg-sidebar: #171717;
    --text-primary: #ececec;
    --text-secondary: #acacac;
    --border: #3d3d3d;
    --accent: #10a37f;
    --accent-hover: #0d8c6d;
    --input-bg: #3d3d3d;
    --shadow: rgba(0,0,0,.3);
}

* {
    box-sizing: border-box;
}

/* ----- Menu principal (en haut) ----- */
.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}
.site-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.6rem 1rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.site-logo {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
    text-decoration: none;
}
.site-logo:hover {
    color: var(--accent);
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
}
.site-nav-link {
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.95rem;
}
.site-nav-link:hover {
    color: var(--text-primary);
    background: var(--border);
}
.site-nav-link.is-active {
    color: var(--accent);
    font-weight: 500;
}
.site-nav-link--admin {
    margin-left: 0.5rem;
    padding-left: 0.75rem;
    border-left: 1px solid var(--border);
}
.site-nav-link--logout {
    font-size: 0.9rem;
}
.site-header-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.site-header-user-name {
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.login-page .site-header-inner { max-width: 100%; }
.login-page .site-header { background: transparent; border-bottom-color: rgba(255,255,255,0.15); }
.login-page .site-logo { color: #fff; }
.login-page .site-logo:hover { color: #a7f3d0; }
.login-page .site-nav-link { color: rgba(255,255,255,0.85); }
.login-page .site-nav-link:hover { color: #fff; background: rgba(255,255,255,0.1); }
.login-page .site-nav-link.is-active { color: #a7f3d0; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    overflow: hidden;
}

/* ----- Login ----- */
.login-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: linear-gradient(135deg, #0d3b2e 0%, #1a5c47 50%, #0d3b2e 100%);
}
.login-page-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 380px;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 8px 32px var(--shadow);
}

.login-card h1 {
    margin: 0 0 0.25rem;
    font-size: 1.5rem;
    text-align: center;
}

.login-subtitle {
    margin: 0 0 1.5rem;
    color: var(--text-secondary);
    text-align: center;
    font-size: 0.95rem;
}

.login-card label {
    display: block;
    margin-bottom: 0.35rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.login-card input {
    width: 100%;
    padding: 0.65rem 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--input-bg);
    color: var(--text-primary);
}

.login-card input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(16, 163, 127, 0.2);
}

.login-card .btn-primary {
    width: 100%;
    padding: 0.75rem;
    margin-top: 0.5rem;
}

.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
}

.alert-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

[data-theme="dark"] .alert-error {
    background: #450a0a;
    color: #fca5a5;
    border-color: #7f1d1d;
}

/* ----- Page avec menu en haut ----- */
.page-with-menu {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}
.page-with-menu .chat-layout-wrap {
    flex: 1;
    display: flex;
    min-height: 0;
    overflow: hidden;
}

/* ----- Chat layout ----- */
.chat-layout {
    display: flex;
    height: 100vh;
}
.page-with-menu .chat-layout-wrap {
    display: flex;
    flex: 1;
    min-height: 0;
}
.page-with-menu .sidebar,
.page-with-menu .chat-main {
    height: 100%;
}

.sidebar {
    width: 260px;
    min-width: 260px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: margin-left .2s, width .2s;
}

.sidebar.collapsed {
    width: 0;
    min-width: 0;
    margin-left: -260px;
    overflow: hidden;
}

.sidebar-header {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-new-chat {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
}

.btn-new-chat:hover {
    background: var(--border);
}

.btn-toggle-sidebar {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236e6e80' stroke-width='2'%3E%3Cpath d='M15 18l-6-6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.sidebar.collapsed .btn-toggle-sidebar {
    display: none;
}

.conversations-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.conversations {
    list-style: none;
    margin: 0;
    padding: 0;
}

.conversations li {
    margin-bottom: 2px;
}

.conversations a,
.conversations button.conv-item {
    display: block;
    width: 100%;
    padding: 0.65rem 0.75rem;
    text-align: left;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversations a:hover,
.conversations button.conv-item:hover {
    background: var(--border);
}

.conversations a.active {
    background: rgba(16, 163, 127, 0.15);
    color: var(--accent);
}

.conv-item-actions {
    display: flex;
    gap: 0.25rem;
    margin-top: 0.25rem;
}

.conv-item-actions button {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border: none;
    border-radius: 4px;
    background: var(--border);
    color: var(--text-secondary);
    cursor: pointer;
}

.conv-item-actions button:hover {
    background: var(--text-secondary);
    color: var(--bg-secondary);
}

.sidebar-footer {
    padding: 0.75rem;
    border-top: 1px solid var(--border);
}

.user-menu {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.user-name {
    font-size: 0.85rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
}

.btn-logout {
    font-size: 0.8rem;
    color: var(--accent);
    text-decoration: none;
}

.btn-logout:hover {
    text-decoration: underline;
}

/* ----- Main chat ----- */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.btn-menu {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236e6e80' stroke-width='2'%3E%3Cline x1='3' y1='6' x2='21' y2='6'/%3E%3Cline x1='3' y1='12' x2='21' y2='12'/%3E%3Cline x1='3' y1='18' x2='21' y2='18'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.sidebar.collapsed .btn-menu {
    display: block;
}

.model-selector-wrap {
    flex: 1;
    max-width: 280px;
}

.model-selector-wrap label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.2rem;
}

.model-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-settings {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
}

.btn-settings:hover {
    background: var(--border);
    color: var(--text-primary);
}

.chat-area {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.welcome-screen {
    max-width: 640px;
    margin: 4rem auto;
    text-align: center;
}

.welcome-screen h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.welcome-screen p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.welcome-screen .hint {
    font-size: 0.9rem;
    margin-top: 1rem;
}

.messages-container {
    max-width: 768px;
    margin: 0 auto;
}

.messages {
    list-style: none;
    margin: 0;
    padding: 0;
}

.message {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
}

.message:last-child {
    border-bottom: none;
}

.message-role {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
}

.message-content {
    white-space: pre-wrap;
    word-break: break-word;
}

.message-content.loading::after {
    content: '▋';
    animation: blink 0.8s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.chat-input-wrap {
    padding: 1rem;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
}

.chat-form {
    max-width: 768px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.chat-form-context {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.chat-context-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.chat-context-label {
    color: var(--text-secondary);
    white-space: nowrap;
}

.chat-context-file {
    max-width: 220px;
    font-size: 0.85rem;
}

.chat-context-file-name {
    font-size: 0.8rem;
    color: var(--text-secondary);
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-context-urls {
    flex: 1;
    min-width: 200px;
    padding: 0.35rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.chat-form-main {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}

.chat-form textarea {
    flex: 1;
    min-height: 44px;
    max-height: 200px;
    padding: 0.65rem 0;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    resize: none;
}

.chat-form textarea:focus {
    outline: none;
}

.btn-send {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-send:hover {
    background: var(--accent-hover);
}

.btn-send:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.send-icon {
    font-size: 1.1rem;
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    cursor: pointer;
}

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

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

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s, visibility .2s;
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.4);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 400px;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 8px 32px var(--shadow);
}

.modal-content h2 {
    margin: 0 0 1rem;
    font-size: 1.25rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.35rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 1rem;
}

.conversations-loading {
    padding: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.conversations-loading.hidden {
    display: none;
}