/* On Purpose — Design System aligné sur la DA onpurpose.org */
:root {
    --op-navy: #1B2A4A;
    --op-navy-light: #2D4066;
    --op-coral: #FF6B6B;
    --op-coral-light: #FF8E8E;
    --op-coral-dark: #E55555;
    --op-teal: #2EC4B6;
    --op-teal-light: #5DD9CE;
    --op-yellow: #FFD166;
    --op-bg: #F8F9FA;
    --op-surface: #FFFFFF;
    --op-text: #1B2A4A;
    --op-text-muted: #6B7B8D;
    --op-border: #E1E5EB;
    --op-success: #2EC4B6;
    --op-warning: #FFD166;
    --op-danger: #FF6B6B;
    --op-radius: 8px;
    --op-radius-lg: 16px;
    --op-shadow: 0 2px 8px rgba(27, 42, 74, 0.08);
    --op-shadow-hover: 0 4px 16px rgba(27, 42, 74, 0.12);
    --op-transition: 0.2s ease;
}

/* Override Pico defaults */
:root {
    --pico-primary: #1B2A4A;
    --pico-primary-hover: #2D4066;
    --pico-border-radius: 8px;
}

body {
    background-color: var(--op-bg);
    color: var(--op-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ── Navigation ─────────────────────────────── */
nav.main-nav {
    background: var(--op-navy);
    padding: 0.75rem 2rem;
    margin-bottom: 2rem;
}

nav.main-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

nav.main-nav a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--op-transition);
}

nav.main-nav a:hover {
    color: #fff;
}

nav.main-nav .nav-brand {
    font-weight: 700;
    font-size: 1.15rem;
    color: #fff !important;
    letter-spacing: -0.3px;
}

nav.main-nav .nav-brand span {
    color: var(--op-coral);
}

nav.main-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

nav.main-nav .user-name {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

nav.main-nav .btn-logout {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 0.3rem 0.75rem;
    border-radius: var(--op-radius);
    cursor: pointer;
    font-size: 0.8rem;
    transition: background var(--op-transition);
}

nav.main-nav .btn-logout:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ── Buttons ────────────────────────────────── */
.btn, [role="button"], button[type="submit"] {
    border-radius: var(--op-radius);
    font-weight: 600;
    transition: all var(--op-transition);
}

.btn-primary, a[role="button"]:not(.outline) {
    background: var(--op-coral) !important;
    border-color: var(--op-coral) !important;
    color: #fff !important;
}

.btn-primary:hover, a[role="button"]:not(.outline):hover {
    background: var(--op-coral-dark) !important;
    border-color: var(--op-coral-dark) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

button[type="submit"] {
    background: var(--op-coral);
    border-color: var(--op-coral);
}

button[type="submit"]:hover {
    background: var(--op-coral-dark);
    border-color: var(--op-coral-dark);
}

.outline {
    border-color: var(--op-border) !important;
    color: var(--op-text) !important;
}

.btn-sm {
    padding: 0.3rem 0.75rem;
    font-size: 0.8rem;
}

/* ── Auth card ──────────────────────────────── */
.auth-card {
    max-width: 420px;
    margin: 5rem auto;
    background: var(--op-surface);
    border-radius: var(--op-radius-lg);
    box-shadow: var(--op-shadow);
    overflow: hidden;
}

.auth-card header {
    background: var(--op-navy);
    color: #fff;
    padding: 2rem;
    text-align: center;
}

.auth-card header h2 {
    color: #fff;
    margin-bottom: 0.25rem;
}

.auth-card header p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0;
}

.auth-card form {
    padding: 2rem;
}

.error-message {
    background: #FFF0F0;
    color: #CC3333;
    padding: 0.75rem 1rem;
    border-radius: var(--op-radius);
    border-left: 3px solid var(--op-coral);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.success-message {
    background: #F0FBF9;
    color: #1A7A6E;
    padding: 0.75rem 1rem;
    border-radius: var(--op-radius);
    border-left: 3px solid var(--op-teal);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* ── Page layout ────────────────────────────── */
main.container {
    max-width: 1200px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    margin-bottom: 0;
    color: var(--op-navy);
    font-weight: 700;
}

/* ── Mission cards ──────────────────────────── */
.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.mission-card {
    background: var(--op-surface);
    border: 1px solid var(--op-border);
    border-radius: var(--op-radius-lg);
    padding: 1.5rem;
    transition: all var(--op-transition);
    position: relative;
    overflow: hidden;
}

.mission-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--op-coral);
}

.mission-card:hover {
    box-shadow: var(--op-shadow-hover);
    transform: translateY(-2px);
}

.mission-card h3 {
    margin-bottom: 0.25rem;
    color: var(--op-navy);
}

.mission-card .org {
    color: var(--op-text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.mission-card .description {
    color: var(--op-text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.mission-card .card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--op-border);
    font-size: 0.8rem;
    color: var(--op-text-muted);
}

/* Status badges */
.status {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-draft { background: #EEF0F3; color: #5A6577; }
.status-active { background: #E8F8F5; color: #1A7A6E; }
.status-archived { background: #FFF5E0; color: #9A7B2C; }

/* ── Empty state ────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--op-surface);
    border-radius: var(--op-radius-lg);
    border: 2px dashed var(--op-border);
}

.empty-state h3 {
    color: var(--op-navy);
}

.empty-state p {
    color: var(--op-text-muted);
    margin-bottom: 1.5rem;
}

/* ── Tabs ───────────────────────────────────── */
.tab-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--op-border);
    margin-bottom: 2rem;
}

.tab-nav a {
    padding: 0.75rem 1.25rem;
    text-decoration: none;
    color: var(--op-text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-weight: 500;
    transition: all var(--op-transition);
}

.tab-nav a:hover {
    color: var(--op-navy);
}

.tab-nav a.active {
    color: var(--op-coral);
    border-bottom-color: var(--op-coral);
}

/* ── Form sections ──────────────────────────── */
.form-section {
    margin-bottom: 2rem;
}

.form-section h3 {
    color: var(--op-navy);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

label {
    font-weight: 500;
    color: var(--op-navy);
}

input, textarea, select {
    border-radius: var(--op-radius) !important;
    border-color: var(--op-border) !important;
}

input:focus, textarea:focus, select:focus {
    border-color: var(--op-coral) !important;
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.15) !important;
}

/* ── Deliverables & Contacts list ───────────── */
.editable-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.editable-item {
    background: var(--op-surface);
    border: 1px solid var(--op-border);
    border-radius: var(--op-radius);
    padding: 1rem 1.25rem;
    margin-bottom: 0.75rem;
    transition: box-shadow var(--op-transition);
}

.editable-item:hover {
    box-shadow: var(--op-shadow);
}

.editable-item .item-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 1rem;
}

.editable-item .item-title {
    font-weight: 600;
    color: var(--op-navy);
    margin-bottom: 0.25rem;
}

.editable-item .item-meta {
    font-size: 0.85rem;
    color: var(--op-text-muted);
}

.editable-item .item-description {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--op-border);
    font-size: 0.9rem;
    color: var(--op-text);
    line-height: 1.6;
    white-space: pre-wrap;
}

.editable-item .item-actions {
    display: flex;
    gap: 0.25rem;
    flex-shrink: 0;
}

.editable-item .item-actions button {
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
    margin: 0;
}

.add-item-form {
    background: #F8F9FA;
    border: 1px dashed var(--op-border);
    border-radius: var(--op-radius);
    padding: 1.25rem;
    margin-top: 0.75rem;
}

.add-item-form h4 {
    margin-bottom: 0.75rem;
    color: var(--op-navy);
    font-size: 0.95rem;
}

.add-item-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.add-item-form .form-row.full {
    grid-template-columns: 1fr;
}

.add-item-form input,
.add-item-form textarea {
    margin-bottom: 0.5rem;
}

/* ── Document list ──────────────────────────── */
.doc-list {
    list-style: none;
    padding: 0;
}

.doc-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border: 1px solid var(--op-border);
    border-radius: var(--op-radius);
    margin-bottom: 0.5rem;
    background: var(--op-surface);
    transition: box-shadow var(--op-transition);
}

.doc-item:hover {
    box-shadow: var(--op-shadow);
}

.doc-item .doc-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.doc-item .doc-type {
    background: var(--op-navy);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.doc-item .doc-status { font-size: 0.8rem; color: var(--op-text-muted); }
.processing-done { color: var(--op-success) !important; }
.processing-error { color: var(--op-danger) !important; }
.processing-pending { color: var(--op-warning) !important; }

/* ── Upload area ────────────────────────────── */
.upload-area {
    border: 2px dashed var(--op-border);
    border-radius: var(--op-radius-lg);
    padding: 2.5rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--op-transition);
    background: #FAFBFC;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--op-coral);
    background: #FFF5F5;
}

.upload-area p { margin: 0; color: var(--op-text-muted); }
.upload-area small { color: var(--op-text-muted); }

/* ── Chat ───────────────────────────────────── */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 160px);
    min-height: 400px;
    background: var(--op-surface);
    border-radius: var(--op-radius-lg);
    border: 1px solid var(--op-border);
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: #FAFBFC;
}

.chat-message {
    max-width: 78%;
    padding: 0.85rem 1.15rem;
    border-radius: var(--op-radius-lg);
    line-height: 1.6;
    font-size: 0.95rem;
}

.chat-message.user {
    align-self: flex-end;
    background: var(--op-navy);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-message.assistant {
    align-self: flex-start;
    background: var(--op-surface);
    border: 1px solid var(--op-border);
    border-bottom-left-radius: 4px;
}

.chat-message.assistant .sources {
    margin-top: 0.75rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--op-border);
    font-size: 0.8rem;
    color: var(--op-text-muted);
}

.chat-input-area {
    display: flex;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--op-border);
    background: var(--op-surface);
}

.chat-input-area textarea {
    flex: 1;
    resize: none;
    min-height: 44px;
    max-height: 120px;
    margin-bottom: 0;
}

.chat-input-area button {
    align-self: flex-end;
    width: auto;
    margin-bottom: 0;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 0.5rem;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--op-text-muted);
    animation: bounce 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* ── Admin stats ────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--op-surface);
    border: 1px solid var(--op-border);
    border-radius: var(--op-radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: box-shadow var(--op-transition);
}

.stat-card:hover { box-shadow: var(--op-shadow); }

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--op-navy);
}

.stat-card .stat-label {
    color: var(--op-text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ── Footer ─────────────────────────────────── */
footer.container {
    text-align: center;
    padding: 2rem 0;
    color: var(--op-text-muted);
    font-size: 0.8rem;
}

/* ── Responsive ─────────────────────────────── */
@media (max-width: 768px) {
    nav.main-nav { padding: 0.75rem 1rem; }
    nav.main-nav .nav-links { gap: 0.75rem; }
    .mission-grid { grid-template-columns: 1fr; }
    .chat-message { max-width: 90%; }
    .page-header { flex-direction: column; align-items: start; gap: 1rem; }
    .add-item-form .form-row { grid-template-columns: 1fr; }
}