/* ================================
   RESET & BASE STYLES
   ================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ================================
   VARIABLES
   ================================ */

:root {
    /* Colors */
    --color-primary: #1E3A5F;
    --color-primary-dark: #152940;
    --color-primary-light: #2E4A6F;
    --color-accent: #3498db; /* Bleu accent pour les gradients */
    --color-text: #1a1a1a;
    --color-text-light: #4a4a4a;
    --color-text-muted: #6a6a6a;
    --color-bg: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-bg-accent: #f0f4f8;
    --color-border: #e0e0e0;
    --color-success: #2d7a3e;
    --color-error: #c73e1d;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Transitions */
    --transition-smooth: all 0.3s ease;
}

/* ================================
   TYPOGRAPHY
   ================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.875rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }
}

/* ================================
   LAYOUT UTILITIES
   ================================ */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

section {
    padding: var(--spacing-xxl) 0;
}

@media (max-width: 768px) {
    section {
        padding: var(--spacing-xl) 0;
    }
}

.section__title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* ================================
   BUTTONS
   ================================ */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: inherit;
}

.btn--primary {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.btn--primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 58, 95, 0.25);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn--secondary:hover {
    background-color: var(--color-primary);
    color: #ffffff;
}

.btn--large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.link-secondary {
    color: var(--color-text-muted);
    text-decoration: underline;
    transition: var(--transition-smooth);
}

.link-secondary:hover {
    color: var(--color-primary);
}

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

.hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero__headline {
    max-width: 900px;
    margin: 0 auto var(--spacing-md);
    font-size: 2.75rem;
    line-height: 1.25;
}

.hero__headline .highlight {
    color: var(--color-primary);
    display: block;
    margin-top: var(--spacing-sm);
}

.hero__subheadline {
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    font-size: 1.25rem;
    color: var(--color-text-light);
}

/* Timeline */
.timeline {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) auto;
    max-width: 900px;
    flex-wrap: wrap;
}

.timeline__step {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 100px;
}

.timeline__icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
}

.timeline__label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
    text-align: center;
}

.timeline__arrow {
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline__duration {
    text-align: center;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-primary);
    margin: var(--spacing-md) auto var(--spacing-lg);
    display: block;
    width: 100%;
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero__headline {
        font-size: 2rem;
    }

    .hero__subheadline {
        font-size: 1.125rem;
    }

    .timeline__arrow {
        display: none;
    }

    .timeline {
        gap: var(--spacing-lg);
        flex-direction: column;
        align-items: center;
    }

    .timeline__step {
        width: 100%;
        max-width: 200px;
    }
}

/* ================================
   PAIN POINTS SECTION
   ================================ */

.pain-points {
    background-color: var(--color-bg);
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.pain-card {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pain-card__icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
}

.pain-card__title {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    text-align: center;
}

.pain-card__description {
    color: var(--color-text-light);
    line-height: 1.7;
    text-align: center;
}

/* ================================
   METHOD SECTION
   ================================ */

.method {
    background-color: var(--color-bg-accent);
}

.phases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.phase-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    transition: var(--transition-smooth);
}

.phase-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(30, 58, 95, 0.12);
    transform: translateY(-4px);
}

.phase-card__header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.phase-card__number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.phase-card__title {
    flex: 1;
    margin: 0;
    text-align: center;
}

.phase-card__duration {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    background-color: var(--color-bg-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    text-align: center;
    width: 100%;
}

.phase-card__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.phase-card__input,
.phase-card__output {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
}

.phase-card__input {
    background-color: var(--color-bg-light);
}

.phase-card__output {
    background-color: #e8f4f0;
    border-left: 3px solid var(--color-success);
}

/* ================================
   TESTIMONIAL SECTION
   ================================ */

.testimonial {
    background-color: var(--color-bg-accent);
    padding: var(--spacing-xxl) 0;
}

.testimonial-card {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--color-border);
}

.testimonial-card__quote {
    margin-bottom: var(--spacing-lg);
}

.testimonial-card__text {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-text);
    font-style: italic;
    text-align: center;
    margin: 0;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
    justify-content: center;
}

.testimonial-card__avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.testimonial-card__initials {
    color: #ffffff;
    font-weight: 600;
    font-size: 1.25rem;
}

.testimonial-card__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-card__info {
    text-align: left;
}

.testimonial-card__name {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-text);
    margin: 0 0 0.25rem 0;
}

.testimonial-card__role {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin: 0;
}

.testimonial-card__link {
    display: inline-block;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition-smooth);
    text-align: center;
    width: 100%;
}

.testimonial-card__link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .testimonial-card {
        padding: var(--spacing-lg);
    }

    .testimonial-card__text {
        font-size: 1.125rem;
    }

    .testimonial-card__author {
        flex-direction: column;
        text-align: center;
    }

    .testimonial-card__info {
        text-align: center;
    }
}

/* ================================
   PROOF SECTION (COMMENTED OUT)
   ================================ */

.proof {
    background-color: var(--color-primary);
    color: #ffffff;
}

.metrics {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: var(--spacing-xl);
    text-align: center;
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 0 auto;
}

.metric {
    flex: 1;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.metric__number {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    display: block;
    text-align: center;
}

.metric__label {
    font-size: 1.125rem;
    opacity: 0.9;
    text-align: center;
    max-width: 250px;
}

@media (max-width: 768px) {
    .metrics {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .metric {
        min-width: 100%;
    }

    .metric__number {
        font-size: 3rem;
    }
}

/* ================================
   BOUNDARIES SECTION
   ================================ */

.boundaries {
    background-color: var(--color-bg-light);
}

.boundaries__intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    font-style: italic;
}

.boundaries__list {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.boundaries__item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.boundaries__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
}

.boundaries__text {
    font-size: 1.125rem;
    color: var(--color-text);
    font-weight: 500;
    text-align: center;
}

/* ================================
   OFFERS SECTION
   ================================ */

.offers {
    background-color: var(--color-bg);
}

.offers-grid {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.offer-card {
    background-color: var(--color-bg-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    transition: var(--transition-smooth);
    flex: 1;
    min-width: 300px;
    max-width: 380px;
}

.offer-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.offer-card--featured {
    border-color: var(--color-primary);
    background-color: var(--color-bg);
    box-shadow: 0 8px 24px rgba(30, 58, 95, 0.15);
}

.offer-card--featured:hover {
    box-shadow: 0 12px 32px rgba(30, 58, 95, 0.25);
}

.offer-card__badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 0.375rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.offer-card__header {
    margin-bottom: var(--spacing-md);
    width: 100%;
    text-align: center;
}

.offer-card__name {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
    text-align: center;
}

.offer-card__tagline {
    color: var(--color-text-muted);
    font-size: 1rem;
    margin: 0;
    text-align: center;
}

.offer-card__content {
    flex: 1;
    margin-bottom: var(--spacing-md);
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.offer-card__features {
    list-style: none;
    margin-bottom: var(--spacing-md);
    width: 100%;
    text-align: left;
    max-width: 280px;
}

.offer-card__features li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-light);
}

.offer-card__features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
}

.offer-card__duration {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.offer-card__price {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.offer-card__cta {
    width: 100%;
}

/* ================================
   FAQ SECTION
   ================================ */

.faq {
    background-color: var(--color-bg-accent);
}

.faq__accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    margin-bottom: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.faq__question {
    width: 100%;
    padding: var(--spacing-md);
    background: none;
    border: none;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition-smooth);
    font-family: inherit;
}

.faq__question:hover {
    color: var(--color-primary);
}

.faq__icon {
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: 300;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq__question[aria-expanded="true"] .faq__icon {
    transform: rotate(45deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq__answer.active {
    max-height: 500px;
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.faq__answer p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ================================
   FINAL CTA / CONTACT SECTION
   ================================ */

.final-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #ffffff;
    text-align: center;
}

.final-cta__title {
    color: #ffffff;
    margin-bottom: var(--spacing-lg);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
    width: 100%;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: #ffffff;
    text-align: left;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    font-size: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-family: inherit;
    transition: var(--transition-smooth);
    display: block;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.8);
    background-color: rgba(255, 255, 255, 0.15);
}

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

.form-message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    text-align: center;
    display: none;
}

.form-message--success {
    background-color: rgba(45, 122, 62, 0.15);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.form-message--error {
    background-color: rgba(199, 62, 29, 0.15);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.final-cta__secondary {
    margin-top: var(--spacing-lg);
}

.final-cta__secondary .link-secondary {
    color: rgba(255, 255, 255, 0.8);
}

.final-cta__secondary .link-secondary:hover {
    color: #ffffff;
}

/* ================================
   FOOTER
   ================================ */

.footer {
    background-color: var(--color-text);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer__text {
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
}

.footer__legal {
    font-size: 0.875rem;
}

.footer__link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer__link:hover {
    color: #ffffff;
    text-decoration: underline;
}

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

@media (max-width: 1024px) {
    .offers-grid {
        flex-direction: column;
        align-items: center;
    }

    .offer-card {
        max-width: 500px;
        width: 100%;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }

    .pain-grid,
    .phases {
        grid-template-columns: 1fr;
    }

    .metrics {
        gap: var(--spacing-lg);
    }
}

/* ================================
   ACCESSIBILITY & PERFORMANCE
   ================================ */

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print styles */
@media print {
    .btn,
    .contact-form,
    .footer {
        display: none;
    }
}