/* ========================================================
   Detec'tool Newsletter — Styles
   Brand: Gris SMP #3B3B3B | Rose SMP #BB1068 |
          Blanc #FFFFFF   | Gris Clair #505151
   ======================================================== */

:root {
    --color-dark: #3B3B3B;
    --color-accent: #BB1068;
    --color-accent-hover: #9a0d56;
    --color-white: #FFFFFF;
    --color-gray: #505151;
    --color-bg: #F5F5F5;
    --color-border: #D0D0D0;
    --color-error: #D32F2F;
    --color-success: #2E7D32;

    --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --radius: 6px;
    --shadow: 0 2px 12px rgba(59, 59, 59, 0.10);
    --transition: 0.2s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    color: var(--color-dark);
    background-color: var(--color-bg);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Header ──────────────────────────────────────────── */

.header {
    background-color: var(--color-dark);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header__logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.header__lang-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: transparent;
    border: 1.5px solid var(--color-white);
    color: var(--color-white);
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}

.header__lang-btn:hover {
    background-color: var(--color-white);
    color: var(--color-dark);
}

.lang-flag {
    font-size: 1.1rem;
}

/* ── Main ────────────────────────────────────────────── */

.main {
    flex: 1;
    max-width: 640px;
    width: 100%;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 3rem;
}

/* ── Logo image (above hero) ─────────────────────────── */

.image {
    text-align: center;
    margin-bottom: 1.5rem;
}

.image__img {
    width: 220px;
    height: auto;
}

/* ── Flyer preview ───────────────────────────────────── */

.flyer-preview {
    margin-bottom: 2rem;
}

.flyer-preview__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.flyer-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.flyer-card__zoom-btn {
    display: block;
    width: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: zoom-in;
}

.flyer-card__img {
    display: block;
    width: 100%;
    height: auto;
}

/* ── Flyer lightbox ──────────────────────────────────── */

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.82);
    padding: 1rem;
}

.lightbox__image {
    max-width: min(92vw, 1100px);
    max-height: 92vh;
    width: auto;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.lightbox[hidden] {
    display: none;
}

.lightbox__close {
    position: absolute;
    top: 14px;
    right: 16px;
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 50%;
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
    color: #111;
    background: #fff;
}

/* ── Hero ────────────────────────────────────────────── */

.hero {
    text-align: center;
    margin-bottom: 2.5rem;
}

.hero h1 {
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.6rem;
    line-height: 1.3;
}

.hero p {
    font-size: 1.05rem;
    color: var(--color-gray);
    max-width: 520px;
    margin: 0 auto;
}

/* ── Form ────────────────────────────────────────────── */

.form {
    background-color: var(--color-white);
    border-radius: 10px;
    padding: 2rem 2rem 2.5rem;
    box-shadow: var(--shadow);
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.4rem;
}

.form__required {
    color: var(--color-accent);
    font-weight: 700;
}

.form__optional {
    font-weight: 400;
    font-size: 0.8rem;
    color: #999;
    font-style: italic;
}

.form__input {
    width: 100%;
    padding: 0.7rem 0.9rem;
    font-size: 0.95rem;
    font-family: var(--font-family);
    color: var(--color-dark);
    background-color: var(--color-white);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input::placeholder {
    color: #A0A0A0;
}

.form__input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(187, 16, 104, 0.12);
}

.form__input.is-invalid {
    border-color: var(--color-error);
}

.form__input.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.12);
}

/* ── Errors ──────────────────────────────────────────── */

.form__error {
    display: none;
    font-size: 0.8rem;
    color: var(--color-error);
    margin-top: 0.3rem;
}

.form__group.has-error .form__error {
    display: block;
}

/* ── Radio buttons ───────────────────────────────────── */

.form__radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-top: 0.5rem;
}

.radio {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-dark);
    user-select: none;
}

.radio input {
    display: none;
}

.radio__mark {
    position: relative;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    flex-shrink: 0;
    transition: border-color var(--transition);
}

.radio__mark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    background-color: var(--color-accent);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform var(--transition);
}

.radio input:checked + .radio__mark {
    border-color: var(--color-accent);
}

.radio input:checked + .radio__mark::after {
    transform: translate(-50%, -50%) scale(1);
}

/* ── Consent checkbox ────────────────────────────────── */

.form__group--consent {
    margin-top: 0.25rem;
}

.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    cursor: pointer;
    user-select: none;
}

.checkbox input {
    display: none;
}

.checkbox__mark {
    position: relative;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    flex-shrink: 0;
    transition: border-color var(--transition), background-color var(--transition);
}

.checkbox__mark::after {
    content: "";
    position: absolute;
    left: 5px;
    top: 1px;
    width: 6px;
    height: 11px;
    border: solid var(--color-white);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0);
    transition: transform var(--transition);
}

.checkbox input:checked + .checkbox__mark {
    border-color: var(--color-accent);
    background-color: var(--color-accent);
}

.checkbox input:checked + .checkbox__mark::after {
    transform: rotate(45deg) scale(1);
}

.checkbox__text {
    font-size: 0.88rem;
    color: var(--color-gray);
    line-height: 1.45;
}

.checkbox__text a {
    color: var(--color-accent);
    font-weight: 600;
    text-decoration: underline;
}

.checkbox__text a:hover {
    color: var(--color-accent-hover);
}

/* ── Submit button ───────────────────────────────────── */

.form__submit {
    display: block;
    width: 100%;
    padding: 0.85rem;
    margin-top: 0.5rem;
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-family);
    color: var(--color-white);
    background-color: var(--color-accent);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

.form__submit:hover {
    background-color: var(--color-accent-hover);
}

.form__submit:active {
    transform: scale(0.985);
}

.form__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ── Success message ─────────────────────────────────── */

.success-message {
    text-align: center;
    background-color: var(--color-white);
    border-radius: 10px;
    padding: 3rem 2rem;
    box-shadow: var(--shadow);
    animation: fadeIn 0.4s ease;
}

.success-message__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: var(--color-accent);
    color: var(--color-white);
    font-size: 2rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 1.25rem;
}

.success-message h2 {
    font-size: 1.4rem;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.success-message p {
    font-size: 1rem;
    color: var(--color-gray);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Footer ──────────────────────────────────────────── */

.footer {
    text-align: center;
    padding: 1.25rem 1rem;
    font-size: 0.8rem;
    color: var(--color-gray);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-white);
}

/* ── Responsive ──────────────────────────────────────── */

@media (max-width: 480px) {
    .header {
        padding: 0.75rem 1rem;
    }

    .main {
        padding: 1.5rem 1rem 2rem;
    }

    .hero h1 {
        font-size: 1.45rem;
    }

    .form {
        padding: 1.5rem 1.25rem 2rem;
    }

    .flyer-preview__grid {
        grid-template-columns: 1fr;
    }

}