/* ================================================
   PSI LE TINCELLE DU SAVOIR — BILAN TRÉSORERIE
   Stylesheet · Poppins + Inter · Bleu/Blanc/Accent
   ================================================ */

/* --- Google Fonts fallback (loaded via <head>) --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

/* --- CSS Variables --- */
:root {
    --color-primary: #0A2540;       /* bleu marine profond */
    --color-primary-light: #1B4F8A; /* bleu intermédiaire */
    --color-accent: #3B82F6;        /* bleu vif accent */
    --color-accent-soft: #EFF6FF;  /* fond accent léger */
    --color-gold: #F59E0B;          /* or pour solde positif */
    --color-gold-soft: #FFFBEB;
    --color-danger: #EF4444;        /* rouge支出 négatif */
    --color-danger-soft: #FEF2F2;
    --color-surface: #FFFFFF;
    --color-bg: #F0F4F8;
    --color-bg-alt: #E8EEF4;
    --color-border: #D1DCE8;
    --color-text: #1E293B;
    --color-text-muted: #64748B;
    --color-text-light: #94A3B8;

    --font-display: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 3px rgba(10,37,64,0.08), 0 1px 2px rgba(10,37,64,0.06);
    --shadow-md: 0 4px 12px rgba(10,37,64,0.10), 0 2px 4px rgba(10,37,64,0.06);
    --shadow-lg: 0 10px 30px rgba(10,37,64,0.12), 0 4px 8px rgba(10,37,64,0.06);
    --shadow-xl: 0 20px 50px rgba(10,37,64,0.15), 0 8px 16px rgba(10,37,64,0.08);

    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-accent); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary-light); }

/* --- HEADER --- */
.site-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    padding: 28px 24px 24px;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-logo {
    height: 72px;
    width: auto;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.25));
    border-radius: var(--radius-sm);
}

.header-titles {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.header-subtitle {
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 400;
    opacity: 0.75;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.header-title {
    font-family: var(--font-display);
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.header-period {
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 400;
    opacity: 0.7;
    margin-top: 2px;
}

/* --- MAIN CONTAINER --- */
.main-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 40px 20px 60px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* --- STEP SECTIONS --- */
.step-section {
    display: none;
    flex-direction: column;
    gap: 24px;
    animation: fadeSlideIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-section.active {
    display: flex;
}

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-intro {
    text-align: center;
    padding: 8px 0 4px;
}

.step-badge {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 4px 14px;
    border-radius: 50px;
    margin-bottom: 10px;
    box-shadow: 0 2px 8px rgba(59,130,246,0.35);
}

.step-heading {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.step-desc {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-top: 8px;
}

/* --- CARDS --- */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

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

.highlight-card {
    border: 2px solid var(--color-accent);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-accent-soft) 100%);
    padding: 32px 34px;
}

.vigilance-card {
    border-left: 4px solid var(--color-danger);
    background: linear-gradient(135deg, var(--color-surface) 0%, #FFF5F5 100%);
}

.europark-card {
    border: 2px solid var(--color-gold);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-gold-soft) 100%);
    padding: 32px 34px;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-header-accent {
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary-light));
    margin: -28px -32px 24px;
    padding: 18px 32px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    color: #fff;
}

.europark-card .card-header-accent {
    background: linear-gradient(90deg, var(--color-gold), #D97706);
}

.card-header-accent .card-title {
    color: #fff;
    margin-bottom: 0;
}

/* --- OVERVIEW GRID --- */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.overview-item {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border: 1px solid var(--color-border);
}

.overview-item--total {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.overview-label {
    font-size: 0.78rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
}

.overview-item--total .overview-label {
    color: rgba(255,255,255,0.7);
}

.overview-value {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.highlight-value {
    color: #fff;
    font-size: 1.4rem;
}

.overview-value.positive { color: #059669; }
.overview-value.negative { color: var(--color-danger); }

/* --- INSIGHT BOX --- */
.insight-box {
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    border: 1px solid #93C5FD;
    border-radius: var(--radius-md);
    padding: 18px 20px;
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.insight-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.insight-text {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-primary);
}

.insight-text strong {
    display: block;
    margin-bottom: 4px;
    font-weight: 700;
}

/* --- CHARTS GRID --- */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.chart-card {
    padding: 24px 28px;
}

.chart-container {
    position: relative;
    height: 280px;
    width: 100%;
}

/* --- SECTION TITLE --- */
.section-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* --- MONTH CARDS --- */
.months-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.month-card {
    padding: 22px 28px;
    border-left: 4px solid var(--color-accent);
    transition: var(--transition);
}

.month-card:hover {
    border-left-color: var(--color-primary);
    transform: translateX(4px);
}

.month-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--color-border);
}

.month-header--positive {
    border-left: 4px solid #059669;
    background: linear-gradient(135deg, var(--color-surface) 0%, #F0FDF4 100%);
    border-radius: var(--radius-md);
    border: none;
    border-left: 4px solid #059669;
}

.month-header--negative {
    border-left: 4px solid var(--color-danger);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-danger-soft) 100%);
    border-radius: var(--radius-md);
    border: none;
    border-left: 4px solid var(--color-danger);
}

.month-name-block {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.month-name {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-primary);
}

.month-balance {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 50px;
}

.month-balance.positive {
    color: #059669;
    background: #D1FAE5;
}

.month-balance.negative {
    color: var(--color-danger);
    background: var(--color-danger-soft);
}

.month-summary {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.summary-pill {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 50px;
    white-space: nowrap;
}

.pill-positive { background: #D1FAE5; color: #065F46; }
.pill-negative { background: #FEE2E2; color: #991B1B; }

/* --- MONTH BODY --- */
.month-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 14px;
}

.col-title {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 2px solid;
}

.col-title--in { color: #059669; border-color: #059669; }
.col-title--out { color: var(--color-danger); border-color: var(--color-danger); }

.detail-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.detail-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.88rem;
    padding: 4px 0;
    border-bottom: 1px dashed var(--color-border);
}

.detail-list li:last-child { border-bottom: none; }

.detail-label { color: var(--color-text); }

.detail-amount {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.88rem;
}

.detail-amount.positive { color: #059669; }
.detail-amount.negative { color: var(--color-danger); }

.empty-note {
    color: var(--color-text-muted);
    font-style: italic;
    font-size: 0.85rem;
}

.month-analysis {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 0.88rem;
    line-height: 1.65;
    color: var(--color-text-muted);
    border-left: 3px solid var(--color-accent);
}

.month-analysis strong {
    color: var(--color-primary);
}

/* --- DOC LIST --- */
.doc-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.doc-list li {
    font-size: 0.9rem;
    line-height: 1.65;
    padding: 12px 16px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-accent);
    color: var(--color-text);
}

.doc-list li strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* --- VIGILANCE --- */
.vigilance-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.vigilance-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 14px 16px;
    background: #FFF5F5;
    border-radius: var(--radius-md);
    border: 1px solid #FECACA;
}

.vigilance-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
}

.vigilance-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-danger);
    margin-bottom: 4px;
}

.vigilance-text {
    font-size: 0.87rem;
    line-height: 1.6;
    color: var(--color-text-muted);
}

/* --- EUROPARK --- */
.europark-intro {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
    line-height: 1.65;
}

.europark-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.sub-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* --- DATA TABLES --- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table th {
    background: var(--color-primary);
    color: #fff;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 10px 14px;
    text-align: left;
}

.data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

.data-table tbody tr:nth-child(even) { background: var(--color-bg); }
.data-table tbody tr:last-child td { border-bottom: none; }

.total-row td {
    background: var(--color-bg-alt);
    font-weight: 700;
    color: var(--color-primary);
    font-size: 0.92rem;
}

.accent-row td {
    background: var(--color-accent-soft);
    color: var(--color-primary);
    font-size: 0.95rem;
}

.refund-note {
    font-size: 0.83rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    line-height: 1.6;
    font-style: italic;
}

.tier-top td:first-child { border-left: 3px solid #059669; }
.tier-low td:first-child { border-left: 3px solid var(--color-text-light); }

.tier-best { color: #059669; font-weight: 700; }
.tier-amount { font-family: var(--font-display); font-weight: 600; }
.tier-detail { font-size: 0.75rem; color: var(--color-text-muted); }

/* --- STEP 2 FOOTER --- */
.step2-footer {
    text-align: center;
    padding: 24px;
    background: linear-gradient(135deg, var(--color-accent-soft) 0%, var(--color-surface) 100%);
    border-radius: var(--radius-xl);
    border: 2px dashed var(--color-accent);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.step2-footer-text {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* --- FORM ELEMENTS --- */
.form-card {
    max-width: 640px;
    margin: 0 auto;
    width: 100%;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.form-group.full-width {
    margin-bottom: 20px;
}

.form-group label {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
}

input[type="text"],
select,
textarea {
    font-family: var(--font-body);
    font-size: 0.92rem;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 11px 14px;
    outline: none;
    transition: var(--transition);
    width: 100%;
}

input[type="text"]:focus,
select:focus,
textarea:focus {
    border-color: var(--color-accent);
    background: var(--color-surface);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

textarea {
    resize: vertical;
    min-height: 80px;
}

/* --- RADIO GROUP --- */
.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    cursor: pointer;
    padding: 7px 14px;
    border-radius: 50px;
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    transition: var(--transition);
    user-select: none;
}

.radio-label:has(input:checked) {
    background: var(--color-accent-soft);
    border-color: var(--color-accent);
    color: var(--color-primary-light);
    font-weight: 600;
}

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

.radio-label:hover {
    border-color: var(--color-accent);
    background: var(--color-surface);
}

/* --- SURVEY RECAP --- */
.survey-recap {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    margin-bottom: 20px;
    font-weight: 500;
}

/* --- SURVEY QUESTIONS --- */
.survey-question {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.4;
    margin-bottom: 4px;
}

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary-light) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(59,130,246,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59,130,246,0.4);
}

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

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-primary);
    border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
    background: var(--color-accent-soft);
    transform: translateY(-1px);
}

.btn-full { width: 100%; }

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

/* --- SURVEY SUCCESS / ERROR --- */
.survey-success,
.survey-error {
    text-align: center;
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.success-icon,
.error-icon {
    font-size: 3.5rem;
    margin-bottom: 8px;
}

.success-title,
.error-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
}

.success-title { color: #059669; }
.error-title { color: var(--color-danger); }

.success-text,
.error-text {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    max-width: 380px;
    line-height: 1.65;
}

.success-user {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* --- FOOTER --- */
.site-footer {
    background: linear-gradient(135deg, var(--color-primary) 0%, #061830 100%);
    color: rgba(255,255,255,0.8);
    padding: 24px;
    margin-top: auto;
}

.footer-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-logo {
    height: 40px;
    opacity: 0.9;
}

.footer-logo-small {
    height: 28px;
    opacity: 0.7;
}

.footer-text {
    font-size: 0.82rem;
    opacity: 0.7;
    text-align: center;
}

/* --- LOADING SPINNER --- */
.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .header-inner { flex-direction: column; align-items: center; text-align: center; }
    .header-logo { height: 60px; }
    .header-title { font-size: 1.3rem; }
    .step-heading { font-size: 1.6rem; }
    .main-container { padding: 24px 16px 40px; gap: 20px; }
    .card { padding: 22px 20px; }
    .overview-grid { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .month-columns { grid-template-columns: 1fr; }
    .europark-layout { grid-template-columns: 1fr; }
    .month-header { flex-direction: column; align-items: flex-start; }
    .radio-group { flex-direction: column; }
    .radio-label { border-radius: var(--radius-sm); width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
    .overview-grid { grid-template-columns: 1fr; }
    .header-title { font-size: 1.15rem; }
    .step-heading { font-size: 1.35rem; }
    .card { padding: 18px 16px; }
    .highlight-card { padding: 22px 18px; }
    .charts-grid { gap: 16px; }
    .chart-container { height: 220px; }
}