:root {
    /* Palette Bienveillante & Énergique Affirmée */
    --bg-cream: #FDFCF9;       
    --bg-sage-light: #F3F6F2;  
    --text-main: #1E2422;      
    --cobalt-vibrant: #2844C7; 
    --terracotta-light: #DE683B;
    --border-light: rgba(0, 0, 0, 0.04);
    --white: #FFFFFF;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-cream);
    color: var(--text-main);
    line-height: 1.65;
    overflow-x: hidden;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.02);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 2rem;
}

.brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}

.header-symbol {
    height: 42px;
    width: auto;
}

.brand-name {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--cobalt-vibrant);
    letter-spacing: 0.3px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

nav a:hover {
    color: var(--cobalt-vibrant);
}

/* ==========================================================================
   HERO SECTION & FORMES ABSTRACTS (BLOBS)
   ========================================================================== */
.hero {
    padding: 11rem 0 9rem;
    text-align: center;
    position: relative;
}

.blob {
    position: absolute;
    filter: blur(35px); /* Formes distinctes mais douces */
    opacity: 0.55;      /* Présence affirmée de la couleur */
    pointer-events: none;
    z-index: 1;
}

/* Blob 1 : Haut gauche - Ambiance Sauge */
.blob-1 {
    width: 500px;
    height: 450px;
    border-radius: 43% 57% 41% 59% / 51% 45% 55% 49%;
    background: linear-gradient(135deg, #E6ECE4 0%, #D8E4D3 100%);
    top: -12%;
    left: -8%;
}

/* Blob 2 : Milieu droit - Énergie Terracotta */
.blob-2 {
    width: 480px;
    height: 520px;
    border-radius: 59% 41% 63% 37% / 43% 55% 45% 57%;
    background: linear-gradient(135deg, rgba(222, 104, 59, 0.18) 0%, rgba(243, 178, 151, 0.1) 100%);
    bottom: -5%;
    right: -12%;
}

/* Blob 3 : Zone Contact - Énergie Cobalt */
.blob-3 {
    width: 400px;
    height: 400px;
    border-radius: 38% 62% 53% 47% / 48% 41% 59% 52%;
    background: linear-gradient(135deg, rgba(40, 68, 199, 0.12) 0%, rgba(121, 140, 227, 0.04) 100%);
    bottom: -15%;
    left: 8%;
}

/* Blob Grid : Glissé sous la section approche */
.blob-grid {
    width: 600px;
    height: 400px;
    border-radius: 50% 50% 30% 70% / 50% 60% 40% 50%;
    background: linear-gradient(135deg, rgba(245, 247, 244, 0.9) 0%, rgba(230, 236, 228, 0.6) 100%);
    top: 20%;
    left: 25%;
    filter: blur(40px);
}

.hero h1 {
    font-size: 3.1rem;
    line-height: 1.3;
    margin-bottom: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.hero h1 span {
    color: var(--cobalt-vibrant);
}

.hero p {
    font-size: 1.2rem;
    max-width: 740px;
    margin: 0 auto 3.5rem;
    color: #4A5450;
}

/* Boutons & Interactions */
.btn-primary {
    background: var(--cobalt-vibrant);
    color: var(--white);
    padding: 0.95rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 5px 16px rgba(40, 68, 199, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(40, 68, 199, 0.26);
}

.btn-secondary {
    border: 2px solid var(--cobalt-vibrant);
    color: var(--cobalt-vibrant);
    padding: 0.6rem 1.6rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: var(--cobalt-vibrant);
    color: var(--white);
}

/* ==========================================================================
   SECTION APPROCHE (CARTES ÉTAPES 1 & 2)
   ========================================================================== */
.pricing-section {
    padding: 8.5rem 0;
    background-color: var(--bg-sage-light);
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.3rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 5rem;
    color: #525E5A;
    font-size: 1.1rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.price-card {
    background: rgba(255, 255, 255, 0.95); /* Effet verre pour laisser deviner le fond */
    backdrop-filter: blur(8px);
    padding: 3.5rem 2.5rem;
    border-radius: 24px;
    box-shadow: 0 15px 40px rgba(32, 38, 36, 0.03);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.price-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 45px rgba(32, 38, 36, 0.06);
}

.price-card.featured {
    border: 1.5px solid rgba(222, 104, 59, 0.4);
    box-shadow: 0 20px 45px rgba(222, 104, 59, 0.05);
}

/* Conteneurs d'icônes filaires Lucide */
.card-icon-wrapper {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    background: rgba(40, 68, 199, 0.06);
}

.price-card.featured .card-icon-wrapper {
    background: rgba(222, 104, 59, 0.08);
}

.card-icon {
    width: 24px;
    height: 24px;
    stroke-width: 1.75px;
    color: var(--cobalt-vibrant);
}

.price-card.featured .card-icon {
    color: var(--terracotta-light);
}

.badge {
    display: inline-block;
    background: rgba(40, 68, 199, 0.06);
    color: var(--cobalt-vibrant);
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing