/* Base palette */
:root {
    --bleu: #004b8d;
    --bleu-fonce: #003664;
    --rouge: #d6191f;
    --gris-clair: #f4f6f9;
    --texte: #222222;
    --success: #0c7a43;
    --warning: #a66300;
    --error: #b3261e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--gris-clair);
    color: var(--texte);
}

.page {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 16px 40px;
}

/* HEADER */
.header {
    background: var(--bleu);
    color: #ffffff;
    border-radius: 10px;
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 18px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
    margin-bottom: 24px;
}

.header-logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-logo-main {
    width: 70px;
    height: 70px;
    object-fit: contain;
}

.header-logo-round {
    width: 38px;
    height: 38px;
    object-fit: contain;
}

.header-text h1 {
    margin: 0;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.header-text .etab {
    font-size: 0.85rem;
    opacity: 0.9;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.header-text .sous-titre {
    margin-top: 6px;
    font-size: 0.95rem;
}

.header-text .sous-titre span {
    display: inline-block;
    margin-right: 10px;
}

.header-coord {
    margin-left: auto;
    text-align: right;
    font-size: 0.9rem;
}

.header-coord .tel {
    font-weight: 700;
    font-size: 1rem;
}

/* ALERTS */
.flash-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
}

.flash {
    padding: 12px 16px;
    border-radius: 8px;
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.flash-success {
    background: var(--success);
}

.flash-warning {
    background: var(--warning);
}

.flash-error {
    background: var(--error);
}

.alert {
    background: #fff5f5;
    border-left: 4px solid var(--error);
    border-radius: 8px;
    padding: 14px 18px;
    color: var(--error);
    margin-bottom: 18px;
}

.alert ul {
    margin: 8px 0 0 18px;
    padding: 0;
}

/* INTRO */
.intro {
    background: #ffffff;
    border-radius: 10px;
    padding: 18px 20px 10px;
    margin-bottom: 18px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.06);
}

.intro h2 {
    margin-top: 0;
    font-size: 1.15rem;
    color: var(--bleu-fonce);
}

.intro p {
    margin: 6px 0;
    font-size: 0.95rem;
}

.intro ul {
    margin: 6px 0 10px 18px;
    padding: 0;
    font-size: 0.92rem;
}

/* FORMULAIRE */
.bloc-form {
    background: #ffffff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.bloc-form h3 {
    margin-top: 0;
    font-size: 1.2rem;
    color: var(--bleu-fonce);
    margin-bottom: 12px;
}

form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px 18px;
}

.full {
    grid-column: 1 / -1;
}

label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 4px;
    font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: 8px 10px;
    border-radius: 6px;
    border: 1px solid #d2d6e0;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    background: #fdfdfd;
}

textarea {
    resize: vertical;
    min-height: 120px;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--bleu);
    box-shadow: 0 0 0 2px rgba(0, 75, 141, 0.12);
}

.btn-envoyer {
    grid-column: 1 / -1;
    margin-top: 6px;
    display: flex;
    justify-content: flex-end;
}

button[type="submit"] {
    border: none;
    border-radius: 999px;
    padding: 10px 26px;
    font-size: 0.98rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    background: var(--rouge);
    color: #ffffff;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
    transition: transform 0.05s ease-out, box-shadow 0.05s ease-out, background 0.15s;
}

button[type="submit"]:hover {
    background: #b81419;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.22);
    transform: translateY(-1px);
}

button[type="submit"]:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
}

/* FOOTER */
.footer {
    text-align: center;
    margin-top: 18px;
    font-size: 0.8rem;
    color: #555;
}

.footer a {
    color: var(--bleu-fonce);
    text-decoration: none;
    font-weight: 600;
}

/* RESPONSIVE */
@media (max-width: 720px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-coord {
        margin-left: 0;
        text-align: left;
    }

    form {
        grid-template-columns: 1fr;
    }

    .btn-envoyer {
        justify-content: center;
    }
}