/* ==========================================================================
   Design System - Renai_Sens_Emy
   Charte graphique :
   - #2F3E46 : Couleur de texte principale
   - #2D6A4F : Couleur structurelle (bordures, boutons, séparateurs)
   - #95D5B2 : Couleur d'accentuation (puces, points clés, surbrillance)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    /* Palette de couleurs */
    --color-text-main: #2F3E46;
    --color-text-muted: #526E7A;
    --color-primary: #2D6A4F;
    --color-primary-dark: #1B4332;
    --color-primary-light: #40916C;
    --color-accent: #95D5B2;
    --color-accent-light: #D8F3DC;
    --color-accent-ultra-light: #E8F5E9;
    --color-bg-natural: #F7FAF8;
    --color-bg-white: #FFFFFF;
    --color-error: #D90429;
    
    /* Typographie */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Ombres */
    --shadow-sm: 0 4px 6px -1px rgba(47, 62, 70, 0.05), 0 2px 4px -1px rgba(47, 62, 70, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(47, 62, 70, 0.08), 0 4px 6px -2px rgba(47, 62, 70, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(47, 62, 70, 0.1), 0 10px 10px -5px rgba(47, 62, 70, 0.04);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Bordures & Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --border-color: rgba(45, 106, 79, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Base & Resets
   ========================================================================== */

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

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

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-bg-natural);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text-main);
    font-weight: 700;
    line-height: 1.25;
}

p {
    margin-bottom: 1rem;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

.text-accent {
    color: var(--color-primary);
    position: relative;
    z-index: 1;
}

.text-accent::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--color-accent);
    z-index: -1;
    opacity: 0.6;
    border-radius: 4px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(247, 250, 248, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(45, 106, 79, 0.08);
    transition: var(--transition-normal);
}

header.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-sm);
    background: rgba(255, 255, 255, 0.95);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: var(--transition-normal);
}

header.scrolled .nav-wrapper {
    height: 64px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 56px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-normal);
}

header.scrolled .logo-img {
    height: 46px;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.35rem;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--color-text-main), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* Hamburger Menu Mobile */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-text-main);
    transition: var(--transition-normal);
}

/* Active Hamburger state */
.nav-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-bg-white);
    border: 2px solid var(--color-primary);
    box-shadow: 0 4px 14px rgba(45, 106, 79, 0.2);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(45, 106, 79, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-accent-ultra-light);
    transform: translateY(-2px);
}

.btn-icon {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    background: radial-gradient(circle at 80% 20%, var(--color-accent-light) 0%, transparent 40%),
                radial-gradient(circle at 10% 80%, var(--color-accent-ultra-light) 0%, transparent 50%),
                var(--color-bg-natural);
    position: relative;
    overflow: hidden;
}

.hero-banner-container {
    width: 100%;
    margin-bottom: 3.5rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 4px solid var(--color-bg-white);
}

.hero-banner {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-normal);
}

.hero-banner:hover {
    transform: scale(1.015);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-accent-ultra-light);
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(45, 106, 79, 0.15);
}

.hero-tag-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.hero-image-wrapper {
    position: relative;
    animation: fadeIn 1s var(--transition-slow) both;
}

.hero-blob {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, var(--color-accent) 0%, transparent 60%);
    opacity: 0.25;
    z-index: 1;
    filter: blur(40px);
    pointer-events: none;
}

.hero-img {
    position: relative;
    z-index: 2;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--color-bg-white);
    background-color: var(--color-bg-white);
    transition: transform var(--transition-slow);
}

.hero-img:hover {
    transform: translateY(-8px) rotate(1deg);
}

/* Floaters */
.hero-floater {
    position: absolute;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(45, 106, 79, 0.1);
    border-radius: var(--radius-md);
    padding: 1rem;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 3;
    animation: float 6s ease-in-out infinite;
}

.floater-1 {
    top: 10%;
    left: -5%;
    animation-delay: 0s;
}

.floater-2 {
    bottom: 15%;
    right: -5%;
    animation-delay: 3s;
}

.floater-icon {
    width: 40px;
    height: 40px;
    background-color: var(--color-accent-ultra-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 1.25rem;
}

.floater-text h4 {
    font-size: 0.9rem;
    font-weight: 700;
}

.floater-text p {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* ==========================================================================
   Concept Section
   ========================================================================== */

#concept {
    background-color: var(--color-bg-white);
}

.concept-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 5rem;
    font-size: 1.2rem;
    color: var(--color-text-muted);
}

.concept-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
}

.concept-pillars {
    display: grid;
    gap: 2rem;
}

.pillar-card {
    background-color: var(--color-bg-natural);
    border-radius: var(--radius-md);
    padding: 2rem;
    border: 1px solid rgba(45, 106, 79, 0.05);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--color-primary);
    transition: var(--transition-normal);
}

.pillar-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(45, 106, 79, 0.15);
}

.pillar-card:hover::before {
    width: 8px;
    background-color: var(--color-accent);
}

.pillar-icon-box {
    width: 50px;
    height: 50px;
    background-color: var(--color-accent-ultra-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

.pillar-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.pillar-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.concept-image-side {
    position: relative;
}

.concept-bubble {
    background-color: var(--color-accent-ultra-light);
    border-radius: var(--radius-lg);
    padding: 3rem;
    border: 2px dashed var(--color-primary);
    position: relative;
}

.concept-bubble-title {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary-dark);
}

.concept-target-list {
    margin-top: 1.5rem;
    display: grid;
    gap: 1rem;
}

.concept-target-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.target-check {
    background-color: var(--color-accent);
    color: var(--color-text-main);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.concept-target-item p strong {
    color: var(--color-primary-dark);
}

.concept-target-item p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ==========================================================================
   Offers Section
   ========================================================================== */

#offres {
    background-color: var(--color-bg-natural);
}

.offres-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
}

.offre-card {
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(45, 106, 79, 0.08);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-normal);
}

.offre-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.offre-badge {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background-color: var(--color-accent-ultra-light);
    color: var(--color-primary);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(45, 106, 79, 0.1);
}

.offre-card.featured {
    border: 2px solid var(--color-primary);
}

.offre-card.featured::after {
    content: 'Recommandé pour QVCT';
    position: absolute;
    top: -14px;
    left: 3rem;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-bg-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 1rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.offre-card h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    padding-right: 6rem;
}

.offre-duration {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.offre-price {
    font-size: 2.25rem;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 2rem;
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.offre-price span {
    font-size: 1rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.offre-desc {
    color: var(--color-text-muted);
    font-size: 1rem;
    margin-bottom: 2rem;
    min-height: 75px;
}

.offre-features-title {
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.offre-features {
    display: grid;
    gap: 0.85rem;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

.offre-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.offre-feature-icon {
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 0.2rem;
}

/* ==========================================================================
   Simulator & Tarifs Section
   ========================================================================== */

#tarifs {
    background-color: var(--color-bg-white);
    background: radial-gradient(circle at 10% 20%, var(--color-accent-ultra-light) 0%, transparent 35%),
                var(--color-bg-white);
}

.tarifs-wrapper {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 4rem;
    align-items: flex-start;
}

.tarifs-info {
    padding-top: 1rem;
}

.tarifs-intro {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

.tarifs-list {
    display: grid;
    gap: 1.5rem;
}

.tarif-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid rgba(45, 106, 79, 0.15);
}

.tarif-row:last-child {
    border-bottom: none;
}

.tarif-row-name {
    font-weight: 600;
}

.tarif-row-name span {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 400;
    margin-top: 0.25rem;
}

.tarif-row-price {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary-dark);
    text-align: right;
}

.tarif-disclaimer {
    margin-top: 2rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
}

/* Simulator Container */
.simulator-box {
    background-color: var(--color-bg-natural);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(45, 106, 79, 0.1);
    position: relative;
}

.simulator-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
}

.simulator-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.simulator-icon {
    color: var(--color-primary);
}

.sim-group {
    margin-bottom: 2rem;
}

.sim-label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

/* Custom Range Slider */
.range-slider-wrapper {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.range-input {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: var(--color-accent-light);
    outline: none;
    transition: background 0.3s;
}

.range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    transition: transform 0.1s;
}

.range-input::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    background: var(--color-primary-dark);
}

.range-input::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    transition: transform 0.1s;
}

.range-input::-moz-range-thumb:hover {
    transform: scale(1.15);
    background: var(--color-primary-dark);
}

.range-value {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-primary);
    min-width: 60px;
    text-align: right;
}

/* Toggle Buttons for Formats */
.format-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.format-btn {
    background-color: var(--color-bg-white);
    border: 2px solid rgba(45, 106, 79, 0.15);
    padding: 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 500;
    text-align: center;
    transition: var(--transition-normal);
}

.format-btn:hover {
    border-color: var(--color-primary);
    background-color: var(--color-accent-ultra-light);
}

.format-btn.active {
    border-color: var(--color-primary);
    background-color: var(--color-accent-ultra-light);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

/* Simulator Output Result */
.sim-result {
    margin-top: 2.5rem;
    background-color: var(--color-bg-white);
    border-radius: var(--radius-md);
    padding: 2rem;
    border: 1px solid rgba(45, 106, 79, 0.15);
    box-shadow: var(--shadow-inner);
    transition: var(--transition-normal);
}

.result-heading {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.result-pack-name {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 0.5rem;
}

.result-pack-price {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1.25rem;
}

.result-pack-details {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    border-top: 1px solid rgba(45, 106, 79, 0.1);
    padding-top: 1rem;
    margin-bottom: 1.5rem;
}

.sim-cta {
    width: 100%;
}

/* ==========================================================================
   About Section
   ========================================================================== */

#about {
    background-color: var(--color-bg-natural);
}

.about-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 5rem;
    align-items: center;
}

.about-img-box {
    position: relative;
}

.about-img-frame {
    position: relative;
    z-index: 2;
    border-radius: var(--radius-lg);
    border: 4px solid var(--color-bg-white);
    box-shadow: var(--shadow-lg);
    background-color: var(--color-bg-white);
    overflow: hidden;
}

.about-img-frame img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.about-img-decor {
    position: absolute;
    z-index: 1;
    background-color: var(--color-accent);
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    top: 20px;
    left: -20px;
    opacity: 0.7;
}

.about-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background-color: var(--color-primary);
    color: var(--color-bg-white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 3;
    font-weight: 700;
    font-family: var(--font-heading);
    text-align: center;
    border: 1px solid rgba(255,255,255,0.2);
}

.about-badge span {
    display: block;
    font-size: 0.75rem;
    font-family: var(--font-body);
    font-weight: 400;
    opacity: 0.9;
}

.about-content {
    animation: fadeIn 1s ease-out;
}

.about-quote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--color-primary);
    margin-bottom: 2rem;
    line-height: 1.4;
    position: relative;
    padding-left: 2rem;
}

.about-quote::before {
    content: '“';
    position: absolute;
    left: 0;
    top: -10px;
    font-size: 4rem;
    color: var(--color-accent);
    line-height: 1;
}

.about-text p {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.about-highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.about-highlight-icon {
    width: 36px;
    height: 36px;
    background-color: var(--color-accent-ultra-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.about-highlight-text {
    font-weight: 600;
    font-size: 0.95rem;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

#contact {
    background-color: var(--color-bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 5rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-heading {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
}

.contact-desc {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.contact-details {
    display: grid;
    gap: 2rem;
}

.contact-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
}

.contact-icon-box {
    width: 50px;
    height: 50px;
    background-color: var(--color-accent-ultra-light);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-detail-text h4 {
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.contact-detail-text p {
    color: var(--color-text-muted);
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* Form Styling */
.contact-form-box {
    background-color: var(--color-bg-natural);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(45, 106, 79, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.85rem 1rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    border: 2px solid rgba(45, 106, 79, 0.15);
    background-color: var(--color-bg-white);
    color: var(--color-text-main);
    transition: var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(45, 106, 79, 0.1);
}

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

.form-submit-btn {
    width: 100%;
    margin-top: 1rem;
}

/* Success notification message */
.form-success-alert {
    display: none;
    margin-top: 1.5rem;
    padding: 1.25rem;
    background-color: var(--color-accent-ultra-light);
    border: 1px solid var(--color-accent);
    color: var(--color-primary-dark);
    border-radius: var(--radius-md);
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
    animation: slideIn 0.3s ease-out;
}

.form-success-alert.show {
    display: flex;
}

.form-success-icon {
    font-size: 1.25rem;
    margin-top: 0.1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

footer {
    background-color: var(--color-text-main);
    color: #A3B899; /* custom soft organic green for dark footer text */
    padding: 5rem 0 2rem;
    border-top: 4px solid var(--color-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-logo-img {
    height: 50px;
    width: auto;
    background-color: var(--color-bg-white);
    padding: 6px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.footer-logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--color-bg-white);
}

.footer-tagline {
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 320px;
}

.footer-links-title {
    color: var(--color-bg-white);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.footer-links-title::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-accent);
}

.footer-links-list {
    display: grid;
    gap: 0.85rem;
}

.footer-links-list a {
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.footer-links-list a:hover {
    color: var(--color-bg-white);
    padding-left: 4px;
}

.footer-contact-details {
    display: grid;
    gap: 1rem;
    font-size: 0.95rem;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-contact-icon {
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
}

.footer-bottom a {
    color: #A3B899;
    transition: var(--transition-fast);
}

.footer-bottom a:hover {
    color: var(--color-bg-white);
    text-decoration: underline;
}

.footer-socials {
    display: flex;
    gap: 1rem;
}

.footer-social-icon {
    width: 36px;
    height: 36px;
    background-color: rgba(255,255,255,0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #A3B899;
    transition: var(--transition-fast);
    font-size: 1rem;
}

.footer-social-icon:hover {
    background-color: var(--color-primary);
    color: var(--color-bg-white);
    transform: translateY(-3px);
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        transform: scale(0.9);
        box-shadow: 0 0 0 0 rgba(45, 106, 79, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 10px rgba(45, 106, 79, 0);
    }
    100% {
        transform: scale(0.9);
        box-shadow: 0 0 0 0 rgba(45, 106, 79, 0);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Responsiveness
   ========================================================================== */

@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .hero-grid,
    .concept-grid,
    .tarifs-wrapper,
    .about-grid,
    .contact-grid {
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 2.5rem;
    }
    
    /* Navigation responsive */
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--color-bg-natural);
        flex-direction: column;
        justify-content: center;
        gap: 2.5rem;
        padding: 3rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--transition-normal), opacity var(--transition-normal);
        border-top: 1px solid rgba(45, 106, 79, 0.08);
        box-shadow: var(--shadow-lg);
    }
    
    header.scrolled .nav-menu {
        top: 64px;
        height: calc(100vh - 64px);
    }
    
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    /* Grid system collapses */
    .hero-grid,
    .concept-grid,
    .offres-grid,
    .tarifs-wrapper,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-banner-container {
        margin-bottom: 2.5rem;
    }

    .hero-content {
        text-align: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-image-wrapper {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .concept-image-side {
        order: -1;
        max-width: 550px;
        margin: 0 auto;
        width: 100%;
    }
    
    .about-img-box {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }
    
    .footer-brand {
        align-items: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-links-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-contact-item {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .offre-card {
        padding: 2rem;
    }
    
    .simulator-box {
        padding: 1.5rem;
    }
    
    .format-selector {
        grid-template-columns: 1fr;
    }
    
    .hero-floater {
        display: none; /* Hide floaters on small screens for visual clarity */
    }
}