/* ==========================================================================
   AUDIT SEO LANDING PAGE — /audit-seo.html
   Charte "Deep Navy + Electric Teal" — uses only design-system variables.
   - Variables sources : assets/css/variables.css
   - Aucun hex/rgb hardcodé : color-mix() pour les rgba.
   - Sections "always-dark" (hero, cta) → var(--primary) + var(--white)/--gray-*
     (constants in variables.css, non-swappable).
   - Sections adaptatives → var(--bg-*), var(--text-*), var(--border)
     (swap automatiquement avec [data-theme="dark"]).
   ========================================================================== */


/* ============================== HERO ============================== */

.audit-hero {
    position: relative;
    overflow: hidden;
    padding: clamp(5rem, 11vw, 8rem) var(--space-4) var(--rhythm-block);
    background:
        radial-gradient(ellipse at 80% 20%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 55%),
        radial-gradient(ellipse at 10% 90%, color-mix(in srgb, var(--primary-soft) 55%, transparent), transparent 60%),
        linear-gradient(180deg, var(--primary) 0%, var(--primary-soft) 120%);
    color: var(--gray-200);
    text-align: center;
}

.audit-hero__inner {
    max-width: 820px;
    margin: 0 auto;
}

.audit-hero__kicker {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-caption);
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 0 0 var(--space-5);
}

.audit-hero__kicker::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--accent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 25%, transparent);
}

.audit-hero__title {
    font-family: var(--font-display);
    font-size: var(--fs-display);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0 0 var(--space-5);
    color: var(--white);
}

.audit-hero__title em {
    font-style: italic;
    background: linear-gradient(135deg, var(--gray-400) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.audit-hero__lead {
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.6;
    color: var(--gray-400);
    margin: 0 auto var(--space-10);
    max-width: 620px;
}


/* ----- Form card (glass on dark) ----- */

.audit-form-card {
    max-width: 560px;
    margin: 0 auto;
    padding: var(--space-6);
    background: color-mix(in srgb, var(--white) 4%, transparent);
    border: 1px solid color-mix(in srgb, var(--white) 12%, transparent);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    box-shadow: var(--shadow-xl);
    text-align: left;
}

.audit-form__group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.audit-form__label {
    font-size: var(--fs-caption);
    font-weight: 600;
    color: var(--gray-300);
    letter-spacing: 0.02em;
}

.audit-form__input {
    padding: 0.85rem var(--space-4);
    font-size: 0.9375rem;
    font-family: var(--font-body);
    background: color-mix(in srgb, var(--white) 6%, transparent);
    border: 1.5px solid color-mix(in srgb, var(--white) 14%, transparent);
    border-radius: var(--radius-md);
    color: var(--white);
    transition: border-color var(--transition-fast),
                background var(--transition-fast),
                box-shadow var(--transition-fast);
}

.audit-form__input::placeholder {
    color: var(--gray-500);
}

.audit-form__input:focus {
    outline: none;
    border-color: var(--accent);
    background: color-mix(in srgb, var(--white) 8%, transparent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
}

.audit-form__error {
    margin: 0 0 var(--space-4);
    padding: var(--space-3) var(--space-4);
    font-size: var(--fs-caption);
    color: color-mix(in srgb, var(--error) 50%, var(--white));
    background: color-mix(in srgb, var(--error) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--error) 40%, transparent);
    border-radius: var(--radius-md);
}

.audit-form__submit {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.95rem var(--space-6);
    font-size: var(--fs-body);
    font-weight: 600;
    font-family: var(--font-body);
    color: var(--primary);
    background: var(--accent);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast),
                transform var(--transition-fast),
                box-shadow var(--transition-fast);
}

.audit-form__submit:hover:not(:disabled),
.audit-form__submit:focus-visible:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 12px 30px -8px color-mix(in srgb, var(--accent) 50%, transparent);
}

.audit-form__submit:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

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

.audit-form__submit svg {
    transition: transform var(--transition-fast);
}

.audit-form__submit:hover:not(:disabled) svg {
    transform: translateX(3px);
}


/* ----- Trust badges below form ----- */

.audit-hero__trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-5);
    justify-content: center;
    margin-top: var(--space-6);
    font-size: var(--fs-caption);
    color: var(--gray-400);
}

.audit-hero__trust span {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.audit-hero__trust svg {
    color: var(--accent);
    flex-shrink: 0;
}


/* ============================== STEPS ============================== */

.audit-steps {
    padding: var(--rhythm-section) var(--space-4);
    background: var(--bg-elevated);
}

.audit-steps__inner {
    max-width: 1100px;
    margin: 0 auto;
}

.audit-steps__heading {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
    font-weight: 600;
    text-align: center;
    margin: 0 0 var(--space-3);
    color: var(--text-primary);
}

.audit-steps__sub {
    text-align: center;
    color: var(--text-secondary);
    margin: 0 auto var(--rhythm-block);
    max-width: 540px;
}

.audit-steps__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.audit-step {
    position: relative;
    padding: var(--space-8) var(--space-6);
    background: color-mix(in srgb, var(--bg-surface) 70%, transparent);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    transition: transform var(--transition),
                box-shadow var(--transition),
                border-color var(--transition);
}

.audit-step:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--accent-deep) 40%, transparent);
    box-shadow: var(--shadow-lg);
}

.audit-step__num {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--accent-deep);
    margin: 0 0 var(--space-4);
}

.audit-step__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent-deep);
    margin-bottom: var(--space-4);
}

.audit-step__title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    margin: 0 0 var(--space-2);
    color: var(--text-primary);
}

.audit-step__desc {
    font-size: 0.9375rem;
    line-height: 1.55;
    color: var(--text-secondary);
    margin: 0;
}


/* ============================== BENTO ============================== */

.audit-bento {
    padding: var(--rhythm-section) var(--space-4);
    background: var(--bg-primary);
}

.audit-bento__inner {
    max-width: 1100px;
    margin: 0 auto;
}

.audit-bento__heading {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
    font-weight: 600;
    text-align: center;
    margin: 0 0 var(--space-3);
    color: var(--text-primary);
}

.audit-bento__sub {
    text-align: center;
    color: var(--text-secondary);
    margin: 0 auto var(--rhythm-block);
    max-width: 540px;
}

.audit-bento__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.bento-cell {
    padding: var(--space-6);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition),
                transform var(--transition);
}

.bento-cell:hover {
    border-color: color-mix(in srgb, var(--accent-deep) 40%, transparent);
    transform: translateY(-2px);
}

.bento-cell__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent-deep);
    margin-bottom: var(--space-3);
}

.bento-cell__title {
    font-size: var(--fs-body);
    font-weight: 600;
    margin: 0 0 var(--space-1);
    color: var(--text-primary);
}

.bento-cell__desc {
    font-size: var(--text-sm);
    line-height: 1.5;
    color: var(--text-secondary);
    margin: 0;
}


/* ============================== PROOF ============================== */

.audit-proof {
    padding: var(--rhythm-section) var(--space-4);
    background: var(--bg-elevated);
}

.audit-proof__inner {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--rhythm-block);
    align-items: center;
}

.audit-proof__stats {
    display: grid;
    gap: var(--space-6);
}

.proof-stat {
    padding: var(--space-6);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.proof-stat__value {
    font-family: var(--font-mono);
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1;
    margin: 0 0 var(--space-2);
}

.proof-stat__value .accent {
    color: var(--accent-deep);
}

.proof-stat__label {
    font-size: var(--fs-caption);
    color: var(--text-secondary);
    margin: 0;
}

.audit-proof__quote {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2.6vw, 1.5rem);
    line-height: 1.45;
    color: var(--text-primary);
    font-weight: 500;
    margin: 0 0 var(--space-5);
}

.audit-proof__quote em {
    font-style: italic;
    color: var(--accent-deep);
}

.audit-proof__author {
    font-size: var(--text-sm);
    color: var(--text-secondary); /* WCAG AA : 7.0:1 sur --bg-elevated clair (#F4F6F9) */
    margin: 0;
}

/* Dark : --text-secondary (#94A3B8) tombe à 4.49:1 sur --bg-elevated (#1E3A5F),
   juste sous le seuil AA 4.5 → on remonte vers un gris clair (7.7:1). */
[data-theme="dark"] .audit-proof__author {
    color: var(--gray-300);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .audit-proof__author {
        color: var(--gray-300);
    }
}


/* ============================== FINAL CTA ============================== */

.audit-cta {
    padding: var(--rhythm-section) var(--space-4);
    background:
        radial-gradient(ellipse at 20% 30%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 55%),
        linear-gradient(180deg, var(--primary) 0%, var(--primary-soft) 120%);
    color: var(--gray-200);
    text-align: center;
}

.audit-cta__inner {
    max-width: 700px;
    margin: 0 auto;
}

.audit-cta__title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 500;
    line-height: 1.15;
    margin: 0 0 var(--space-4);
    color: var(--white);
}

.audit-cta__title em {
    font-style: italic;
    background: linear-gradient(135deg, var(--gray-400) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.audit-cta__lead {
    font-size: var(--text-lg);
    color: var(--gray-400);
    margin: 0 0 var(--space-10);
    line-height: 1.6;
}

.audit-cta__actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    flex-wrap: wrap;
}

.audit-cta__actions .btn {
    gap: var(--space-2);
}

.audit-cta__actions .btn svg {
    transition: transform var(--transition-fast);
}

.audit-cta__actions .btn:hover svg {
    transform: translateX(3px);
}

.audit-cta__actions .btn--secondary {
    background: transparent;
    color: var(--white);
    border: 1.5px solid color-mix(in srgb, var(--white) 25%, transparent);
}

.audit-cta__actions .btn--secondary:hover {
    background: color-mix(in srgb, var(--white) 8%, transparent);
    border-color: var(--accent);
    color: var(--white);
}


/* ============================== RESPONSIVE ============================== */

@media (max-width: 880px) {
    .audit-steps__grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }
    .audit-bento__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .audit-proof__inner {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 540px) {
    .audit-bento__grid {
        grid-template-columns: 1fr;
    }
    .audit-hero__trust {
        gap: var(--space-3);
        flex-direction: column;
        align-items: center;
    }
}


/* ============================== prefers-reduced-motion ============================== */

@media (prefers-reduced-motion: reduce) {
    .audit-step,
    .bento-cell,
    .audit-form__submit,
    .audit-form__submit svg,
    .audit-cta__actions .btn svg {
        transition: none;
    }
    .audit-step:hover,
    .bento-cell:hover,
    .audit-form__submit:hover:not(:disabled),
    .audit-cta__actions .btn:hover svg,
    .audit-form__submit:hover:not(:disabled) svg {
        transform: none;
    }
}