/* =========================
   RESET SIMPLE
========================= */
* {
    margin: 0;
    padding-bottom: 20px;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

/* =========================
   HEADER
========================= */
header {
    background-color: #0f172a;
    padding: 15px 30px;
}

.nav {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav a {
    color: #e5e7eb;
    text-decoration: none;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 5px;
    transition: background 0.2s ease, color 0.2s ease;
}

.nav a:hover {
    background-color: #1e293b;
    color: #ffffff;
}

.nav .logout {
    margin-left: auto;
    background-color: #991b1b;
}

.nav .logout:hover {
    background-color: #b91c1c;
}

/* =========================
   FOOTER
========================= */
footer {
    background-color: #1e293b;
    color: #cbd5f5;
    text-align: center;
    padding: 15px;
    font-size: 0.9rem;
}

/* =========================
   TITRES & TEXTE
========================= */
h1 {
    margin: 20px;
    font-size: 2rem;
    text-align: center;
}

p {
    line-height: 1.6;
    font-size: 1rem;
}

/* =========================
   FORMULAIRES
========================= */
form {
    max-width: 400px;
    margin: 20px auto;
    flex-direction: column;
}

label {
    display: flex;
    flex-direction: column;
    font-weight: 500;
}

input {
    padding: 8px;
    font-size: 1rem;
}

button {
    padding: 10px;
    background-color: #0f172a;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s ease;
}

button:hover {
    background-color: #1e293b;
}

.error {
    color: #b91c1c;
    margin-bottom: 15px;
    text-align: center;
}

/* =========================
   MESSAGES & SUBTITLE
========================= */
.subtitle {
    margin-bottom: 30px;
    color: #475569;
    font-size: 1.1rem;
}

.message {
    background: #e0f2fe;
    color: #0369a1;
    padding: 10px 15px;
    border-radius: 5px;
    margin-bottom: 30px;
}

/* =========================
   CARDS GÉNÉRIQUES
========================= */
.cards, .user-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    text-align: center;
}

.card h2 {
    margin-bottom: 10px;
    color: #0f172a;
}

.card p {
    margin-bottom: 15px;
    color: #475569;
}

.card a {
    display: inline-block;
    padding: 8px 14px;
    background: #0f172a;
    color: white;
    border-radius: 4px;
    text-decoration: none;
    transition: background 0.2s ease;
}

.card a:hover {
    background-color: #1e293b;
}

/* =========================
   DASHBOARD & USERS PAGE
========================= */
.dashboard, .users-page {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
}

.users-page p, .dashboard p {
    text-align: center;
    color: #475569;
    margin-bottom: 30px;
}

/* =========================
   404 PAGE
========================= */
.notfound {
    text-align: center;
    margin-top: 100px;
    color: #0f172a;
}

.notfound h1 {
    font-size: 6rem;
    margin-bottom: 20px;
}

.notfound p {
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.notfound a {
    display: inline-block;
    padding: 10px 20px;
    background-color: #0f172a;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.2s ease;
}

.notfound a:hover {
    background-color: #1e293b;
}

/* =========================
   Chat
========================= */
.chat-page {
    max-width: 600px;
    margin: 0px auto;
    padding: 0 20px;
}

#chat-box {
    flex: 1;
    height: 300px;
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 100px;
    background-color: #f8fafc;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#chat-box p {
    margin: 0;
    padding: 8px 12px;
    border-radius: 5px;
    background-color: #e0f2fe;
    color: #0369a1;
    word-wrap: break-word;
}

/* Formulaires */

form input {
    /* flex: 1 1 auto; */
    padding: 10px;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid #ccc;
}

form button {
    padding: 10px 20px;
    background-color: #0f172a;
    color: white;
}