@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,400;0,700;1,400&display=swap');

/* --- VARIABLES --- */
:root {
    --encre-noire: #0D1A1C;
    --gris-ardoise: #2F5D62;
    --bleu-sarcelle: #7BAE7F;
    --parchemin: #F2EFEA;
    --blanc: #ffffff;
}

/* --- BASES & STRUCTURE --- */
html, body {
    margin: 0;
    padding: 0;
    width: 100%;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--parchemin);
    color: var(--encre-noire);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-content {
    flex: 1;
}

/* --- TYPOGRAPHIE --- */
h1 {
    font-weight: 700; 
    color: var(--encre-noire);
    text-align: center;
    margin-top: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

h2 {
    font-weight: 100; 
    color: var(--gris-ardoise);
    border-bottom: 2px solid var(--bleu-sarcelle);
    padding-bottom: 10px;
}

h3 {
    font-weight: 400; 
    color: var(--encre-noire);
}

/* --- BOUTONS --- */
button, .submit-btn {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    background-color: var(--bleu-sarcelle); 
    color: var(--blanc);
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
}

button:hover {
    background-color: var(--gris-ardoise);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* --- FORMULAIRES --- */
form {
    background: var(--blanc);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    max-width: 400px;
    margin: 40px auto;
}

div label {
    display: block;
    margin-bottom: 8px;
    font-weight: 400;
}

input[type="text"], 
input[type="email"], 
input[type="password"], 
input[type="number"], 
input[type="date"], 
textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-sizing: border-box; 
    font-family: 'Poppins', sans-serif;
}

input:focus {
    outline: none;
    border-color: var(--bleu-sarcelle); 
    box-shadow: 0 0 0 3px rgba(123, 174, 127, 0.2);
}

/* --- NAVIGATION GENERALE --- */
nav:not(#sidebar nav) {
    background-color: var(--encre-noire);
    padding: 15px;
    text-align: center;
    margin-bottom: 30px;
}

nav:not(#sidebar nav) button {
    background: transparent;
    border: 1px solid var(--bleu-sarcelle);
    margin: 0 5px;
}

nav:not(#sidebar nav) button:hover {
    background: var(--bleu-sarcelle);
}

/* --- TABLES --- */
table {
    width: 90%;
    margin: 20px auto;
    border-collapse: collapse;
    background: var(--blanc);
    border-radius: 8px;
    overflow: hidden;
}

th {
    background-color: var(--gris-ardoise);
    color: var(--blanc);
    padding: 15px;
    text-align: left;
}

td {
    padding: 12px 15px;
    border-bottom: 1px solid #eee;
}

tr:hover {
    background-color: #f9f9f9;
}

#user-info, #welcome-message {
    text-align: center;
}

#editModal {
    border: none !important;
    border-radius: 15px;
    box-shadow: 0 0 50px rgba(0,0,0,0.3);
}

/* --- HEADER COMMUN --- */
.header {
    background-color: var(--bleu-sarcelle);
    padding: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    border: none;
    border-radius: 0;
}

.header-content {
    display: flex;
    justify-content: space-between; /* Corrigé pour éviter le chevauchement */
    align-items: center;
    padding: 0 30px;
    min-height: 90px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.logo {
    position: relative;
    left: 0;
}

.logo h1 {
    margin: 0;
    color: var(--blanc);
    font-size: 1.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: left;
}

.header-nav-links {
    display: flex;
    gap: 16px;
    align-items: center;
}

.header-nav-link {
    color: var(--blanc);
    text-decoration: none;
    font-weight: 700;
    padding: 10px 16px;
    border-radius: 6px;
    transition: background-color 0.3s ease;
}

.header-nav-link:hover {
    background-color: rgba(255,255,255,0.1);
}

.user-info-header {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-menu {
    position: relative;
}

.user-name-link {
    color: var(--blanc);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.user-name-link:hover {
    color: var(--parchemin);
}

/* --- DROPDOWN MENU --- */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.4rem);
    right: 0;
    background-color: var(--blanc);
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--encre-noire);
    min-width: 180px;
    width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 1000;
    text-align: left;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a,
.dropdown-menu .btn-logout {
    display: block;
    width: 100%;
    padding: 12px 16px;
    color: var(--encre-noire);
    text-decoration: none;
    font-weight: 600;
    box-sizing: border-box;
    text-align: left;
    background: none;
    border: none;
}

.dropdown-menu a:hover,
.dropdown-menu .btn-logout:hover {
    background-color: var(--parchemin);
}

.btn-logout {
    background-color: var(--encre-noire);
    padding: 8px 16px;
    font-size: 0.85rem;
    border: none;
    border-radius: 6px;
    color: var(--blanc);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dropdown-menu .btn-logout {
    border-radius: 0 0 8px 8px;
    color: var(--blanc);
    background-color: var(--encre-noire);
    font-weight: 700;
    text-align: center;
}

/* --- FOOTER --- */
.site-footer {
    background-color: var(--encre-noire);
    color: var(--parchemin);
    padding: 20px 0;
    margin-top: 40px;
}

.footer-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-brand {
    font-weight: 700;
    letter-spacing: 1px;
}

.footer-links a {
    color: var(--parchemin);
    text-decoration: none;
    margin-left: 20px;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* --- DASHBOARD & BACKOFFICE --- */
#backoffice-nav {
    flex: 0 0 250px;
    width: 250px;
}

body[data-page] .d-flex.vh-100 {
    min-height: 100vh;
    align-items: stretch;
}

body[data-page] .d-flex.vh-100 > main {
    flex: 1 1 auto;
    min-width: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.app-shell {
    display: flex;
    min-height: 100vh;
    background: var(--parchemin);
}

#sidebar {
    width: 100%;
    min-width: 0;
    background: var(--encre-noire);
    color: var(--blanc);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 1.5rem 1rem;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.2);
}

.sidebar-brand {
    padding: 0.5rem 0.8rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 1rem;
}

.sidebar-divider {
    border-color: rgba(255,255,255,0.1);
    margin: 0.5rem 0;
}

.sidebar-section-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #64748B;
    padding: 0.25rem 0.8rem;
    display: block;
}

#sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    margin-bottom: 0;
    text-align: left;
}

#sidebar .nav-item {
    display: block;
    text-decoration: none;
    background: transparent;
    color: #CBD5E1;
    text-align: left;
    padding: 0.65rem 0.8rem;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

#sidebar .nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

#sidebar .nav-item.active {
    background: var(--bleu-sarcelle);
    color: #fff;
}

#sidebar .nav-item-danger {
    color: #F87171;
}

#sidebar .nav-item-danger:hover {
    background: rgba(248, 113, 113, 0.15);
    color: #FCA5A5;
}

.main-content {
    margin-left: 250px;
    width: calc(100% - 250px);
    min-height: 100vh;
}

.topbar {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--blanc);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #E2E8F0;
    z-index: 500;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.kpi-card {
    padding: 1rem;
    border-radius: 12px;
    background: var(--blanc);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
}

.kpi-value {
    margin: 0.6rem 0 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--encre-noire);
}

.chart-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.chart-card {
    background: #fff;
    border-radius: 12px;
    padding: 1rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    #backoffice-nav { flex-basis: 220px; width: 220px; }
    #sidebar { width: 100%; }
    .main-content { margin-left: 220px; width: calc(100% - 220px); }
    .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        padding: 15px 20px;
    }

    .logo {
        position: static;
        text-align: center;
    }

    .user-info-header {
        position: static;
        transform: none;
        width: 100%;
        justify-content: center;
        margin-top: 10px;
    }

    .header-nav-links {
        margin-left: 0;
        justify-content: center;
    }

    #backoffice-nav { flex-basis: 100%; width: 100%; }
    #sidebar { position: relative; width: 100%; height: auto; min-height: auto; }
    body[data-page] .d-flex.vh-100 {
        flex-direction: column;
    }
    .main-content { margin-left: 0; width: 100%; }
    .kpi-grid { grid-template-columns: 1fr; }
    .chart-grid { grid-template-columns: 1fr; }
}