:root {
    --color-bg: #050505;
    --color-surface: #0a0a0a;
    --color-surface-hover: #111111;
    --color-text: #ffffff;
    --color-text-muted: #a0a0a0;

    /* F1 Palette */
    --color-accent: #ccff00;
    /* Neon Green */
    --color-accent-secondary: #ff00cc;
    /* Hot Pink */
    --color-border: #333333;

    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-tech: 'Courier New', monospace;
    /* Fallback for tech feel */

    --spacing-container: 1200px;
    --spacing-section: 100px;

    --skew-angle: -10deg;
}

/* RESET & BASE */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg);
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    /* Technical Grid Background */
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    line-height: 1.1;
    font-weight: 700;
    font-style: italic;
    /* Speed feel */
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--spacing-container);
    margin: 0 auto;
    padding: 0 24px;
}

.highlight {
    color: var(--color-accent);
    text-shadow: 0 0 20px rgba(204, 255, 0, 0.3);
}

/* UTILITIES */
.skew-box {
    transform: skewX(var(--skew-angle));
}

.unskew-text {
    transform: skewX(calc(var(--skew-angle) * -1));
    display: inline-block;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 40px;
    background: var(--color-accent);
    color: #000;
    font-family: var(--font-heading);
    font-weight: 700;
    font-style: italic;
    font-size: 1.2rem;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease-out;
    transform: skewX(var(--skew-angle));
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    transition: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background-color: #fff;
    box-shadow: 0 0 40px var(--color-accent), 0 0 10px #fff;
    transform: skewX(var(--skew-angle)) translateY(-4px);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 1rem;
}

.btn-lg {
    padding: 24px 48px;
    font-size: 1.5rem;
}

.full-width {
    width: 100%;
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(5, 5, 5, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    padding: 20px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--color-text);
    font-family: var(--font-tech);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
}

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

@media (max-width: 900px) {
    .nav-links {
        display: none;
    }
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    font-style: italic;
    letter-spacing: -1px;
    color: var(--color-text);
    text-transform: uppercase;
}

.logo span {
    color: var(--color-accent);
}

/* HERO SECTION */
.hero {
    padding-top: 200px;
    padding-bottom: 120px;
    position: relative;
    overflow: hidden;
    /* F1 Long Exposure Background */
    background: linear-gradient(rgba(5, 5, 5, 0.7), rgba(5, 5, 5, 0.9)), url('assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

/* Speed Lines Background Effect - Adjusted opacity */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 200%;
    height: 100%;
    background: repeating-linear-gradient(90deg,
            transparent,
            transparent 100px,
            rgba(255, 255, 255, 0.05) 100px,
            rgba(255, 255, 255, 0.05) 102px);
    transform: translateX(-50%) skewX(-20deg);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(3.5rem, 9vw, 7rem);
    margin-bottom: 24px;
    letter-spacing: -2px;
    line-height: 0.9;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
    font-weight: 300;
}

.hero-date-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(204, 255, 0, 0.1);
    border: 1px solid var(--color-accent);
    padding: 12px 24px;
    margin-bottom: 56px;
    font-family: var(--font-tech);
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
    transform: skewX(var(--skew-angle));
    box-shadow: 0 0 20px rgba(204, 255, 0, 0.1);
}

.hero-date-badge strong {
    color: var(--color-accent);
    font-size: 1.2em;
    font-weight: 700;
}

.hero-date-badge > * {
    transform: skewX(calc(var(--skew-angle) * -1));
}

.hero-proof {
    display: flex;
    justify-content: center;
    gap: 64px;
    margin-bottom: 64px;
}

.proof-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid var(--color-border);
    padding: 16px 32px;
    transform: skewX(var(--skew-angle));
    background: rgba(255, 255, 255, 0.02);
}

.proof-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-accent-secondary);
    /* Hot Pink */
    font-weight: 700;
    font-style: italic;
    transform: skewX(calc(var(--skew-angle) * -1));
    line-height: 1;
}

.proof-label {
    font-size: 0.8rem;
    font-family: var(--font-tech);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 8px;
    transform: skewX(calc(var(--skew-angle) * -1));
}

/* MARQUEE */
.marquee-container {
    width: 100%;
    overflow: hidden;
    background: var(--color-accent);
    padding: 12px 0;
    margin-top: 80px;
    transform: rotate(-2deg) scale(1.05);
    border-top: 4px solid #000;
    border-bottom: 4px solid #000;
}

.marquee {
    display: flex;
    white-space: nowrap;
    animation: marquee 10s linear infinite;
    /* Faster animation */
}

.marquee span {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    font-style: italic;
    color: #000;
    padding-right: 64px;
    text-transform: uppercase;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* SECTIONS COMMON */
.section {
    padding: var(--spacing-section) 0;
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden; /* Pour les effets de glow qui débordent */
    scroll-margin-top: 100px; /* Offset for fixed navbar */
}

/* Glow Effect Background for Sections */
.section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(204, 255, 0, 0.03) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.section-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 80px;
    text-align: center;
    color: #fff;
    text-shadow: 4px 4px 0px rgba(255, 0, 204, 0.2);
}

/* DELIVERABLES (GRID) */
.grid-deliverables {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.card {
    background: var(--color-surface);
    padding: 40px;
    border: 1px solid var(--color-border);
    position: relative;
    transition: all 0.3s;
    overflow: hidden;
}

/* Tech corners */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 20px;
    height: 20px;
    border-top: 2px solid var(--color-accent);
    border-left: 2px solid var(--color-accent);
}

.card::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 20px;
    height: 20px;
    border-bottom: 2px solid var(--color-accent);
    border-right: 2px solid var(--color-accent);
}

.card:hover {
    border-color: var(--color-accent);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(204, 255, 0, 0.1);
    background: rgba(255, 255, 255, 0.03);
}

.card h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
    color: var(--color-text);
    font-style: italic;
}

.card p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

/* AUDIENCE */
.audience-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

@media (max-width: 768px) {
    .audience-grid {
        grid-template-columns: 1fr;
    }
}

.audience-col {
    background: rgba(255, 255, 255, 0.02);
    padding: 40px;
    border: 1px solid var(--color-border);
}

.audience-col h3 {
    font-size: 2.2rem;
    margin-bottom: 32px;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 16px;
}

.check-list li,
.cross-list li {
    margin-bottom: 20px;
    padding-left: 40px;
    position: relative;
    font-size: 1.2rem;
    font-weight: 500;
}

.check-list li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
}

.cross-list li::before {
    content: 'X';
    position: absolute;
    left: 0;
    color: var(--color-accent-secondary);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
}

/* TIMELINE */
.timeline-steps {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline-steps::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--color-border);
    /* Checkered pattern on the line */
    background-image: linear-gradient(45deg, #333 25%, transparent 25%, transparent 75%, #333 75%, #333),
        linear-gradient(45deg, #333 25%, transparent 25%, transparent 75%, #333 75%, #333);
    background-size: 10px 10px;
    background-position: 0 0, 5px 5px;
}

.step {
    display: flex;
    margin-bottom: 64px;
    position: relative;
}

.step:last-child {
    margin-bottom: 0;
}

.step-time {
    min-width: 180px;
    padding-left: 60px;
    font-family: var(--font-heading);
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.2rem;
    font-style: italic;
    padding-top: 4px;
    text-shadow: 0 0 10px rgba(204, 255, 0, 0.3);
}

.step-content {
    flex: 1;
    padding-left: 32px;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.step-content h3 {
    font-size: 2rem;
    margin-bottom: 12px;
    color: #fff;
}

.step-content p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

.step::after {
    content: '';
    position: absolute;
    left: 12px;
    top: 6px;
    width: 20px;
    height: 20px;
    background: var(--color-bg);
    border: 4px solid var(--color-accent-secondary);
    transform: rotate(45deg);
    /* Diamond shape */
    box-shadow: 0 0 15px var(--color-accent-secondary);
}

/* DIFFERENTIATION */
.diff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
}

@media (max-width: 768px) {
    .diff-grid {
        grid-template-columns: 1fr;
    }
}

.diff-icon {
    font-size: 4rem;
    display: block;
    margin-bottom: 24px;
    text-shadow: 4px 4px 0 var(--color-accent-secondary);
}

.diff-item h3 {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--color-accent);
}

.diff-item p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

/* RESULTS */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

.testimonial {
    background: var(--color-surface);
    padding: 40px;
    border: 1px solid var(--color-border);
    position: relative;
    /* Skew container */
    transform: skewX(var(--skew-angle));
}

.testimonial>* {
    /* Unskew content */
    transform: skewX(calc(var(--skew-angle) * -1));
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-accent);
}

.quote {
    font-size: 1.4rem;
    font-style: italic;
    margin-bottom: 32px;
    color: var(--color-text);
    font-family: var(--font-heading);
    font-weight: 300;
}

.author strong {
    display: block;
    color: var(--color-accent-secondary);
    font-family: var(--font-heading);
    font-size: 1.2rem;
}

.author span {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-family: var(--font-tech);
    text-transform: uppercase;
}

/* OFFER */
.offer-card {
    max-width: 700px;
    margin: 0 auto;
    background: var(--color-surface);
    border: 2px solid var(--color-accent);
    overflow: hidden;
    position: relative;
    box-shadow: 0 0 50px rgba(204, 255, 0, 0.1);
}

.offer-header {
    background: var(--color-accent);
    color: #000;
    padding: 64px;
    text-align: center;
    /* Checkered pattern overlay */
    background-image: linear-gradient(45deg, rgba(0, 0, 0, 0.1) 25%, transparent 25%, transparent 50%, rgba(0, 0, 0, 0.1) 50%, rgba(0, 0, 0, 0.1) 75%, transparent 75%, transparent);
    background-size: 20px 20px;
}

.offer-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    font-style: italic;
}

.price {
    font-family: var(--font-heading);
    font-size: 5rem;
    font-weight: 800;
    line-height: 1;
    font-style: italic;
    letter-spacing: -2px;
}

.ht {
    font-size: 2rem;
    font-weight: 400;
}

.offer-body {
    padding: 64px;
}

.offer-list li {
    margin-bottom: 20px;
    font-size: 1.2rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 20px;
    display: flex;
    align-items: center;
}

.offer-list li::before {
    content: '';
    display: inline-block;
    width: 10px;
    height: 10px;
    background: var(--color-accent-secondary);
    margin-right: 16px;
    transform: rotate(45deg);
}

.limit-alert {
    margin-top: 40px;
    background: rgba(255, 0, 204, 0.1);
    color: var(--color-accent-secondary);
    padding: 20px;
    text-align: center;
    font-weight: 700;
    border: 1px solid var(--color-accent-secondary);
    font-family: var(--font-tech);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* CONTACT */
.contact-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background: var(--color-surface);
    padding: 48px;
    border: 1px solid var(--color-border);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

@media (max-width: 768px) {
    .contact-form {
        grid-template-columns: 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-actions {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    margin-top: 24px;
}

label {
    margin-bottom: 12px;
    font-family: var(--font-tech);
    font-size: 0.8rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

input,
textarea,
select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    padding: 20px;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1.1rem;
    transition: all 0.3s;
    border-radius: 0;
    /* Sharp edges */
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(204, 255, 0, 0.05);
}

/* SELECT DROPDOWN CUSTOM */
select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg width='14' height='8' viewBox='0 0 14 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L7 7L13 1' stroke='%23CCFF00' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 20px center;
    padding-right: 50px;
    position: relative;
}

select:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 10px rgba(204, 255, 0, 0.2);
}

select:focus {
    box-shadow: 0 0 20px rgba(204, 255, 0, 0.3);
}

/* Style des options du select (limité par les navigateurs) */
select option {
    background: #0a0a0a;
    color: var(--color-text);
    padding: 12px;
}

select option:hover,
select option:checked {
    background: rgba(204, 255, 0, 0.1);
    color: var(--color-accent);
}

/* RADIO BUTTONS CUSTOM */
.radio-group {
    display: flex;
    gap: 24px;
    margin-top: 8px;
}

.radio-option {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
    padding-left: 35px;
    color: var(--color-text-muted);
    font-size: 1.1rem;
    transition: all 0.2s;
}

.radio-option:hover {
    color: var(--color-text);
}

.radio-option input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

/* Custom Checkbox/Radio Shape */
.checkmark {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    height: 24px;
    width: 24px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
}

.radio-option:hover input ~ .checkmark {
    border-color: var(--color-accent);
}

.radio-option input:checked ~ .checkmark {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 10px rgba(204, 255, 0, 0.3);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.radio-option input:checked ~ .checkmark:after {
    display: block;
}

/* Style the indicator inside */
.radio-option .checkmark:after {
    left: 7px;
    top: 3px;
    width: 6px;
    height: 12px;
    border: solid #000;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.radio-option input:checked ~ span {
    color: #fff;
    font-weight: 500;
}

/* LOGOS SECTION */
.logos-section {
    padding: 64px 0;
    text-align: center;
    background: rgba(255, 255, 255, 0.01);
}

.logos-title {
    font-family: var(--font-tech);
    color: var(--color-text-muted);
    letter-spacing: 4px;
    font-size: 0.9rem;
    margin-bottom: 32px;
    text-transform: uppercase;
}

.logos-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 64px;
    flex-wrap: wrap;
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    opacity: 0.7;
    transition: all 0.3s;
}

.logo-item:hover {
    opacity: 1;
    filter: drop-shadow(0 0 10px rgba(204, 255, 0, 0.3));
}

.logo-item img {
    height: 40px;
    width: auto;
    /* Filtre blanc pur pour uniformiser */
    filter: grayscale(100%) brightness(1000%);
}

.logo-item span {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* FAQ SECTION */
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    transition: all 0.3s;
}

.faq-question {
    padding: 24px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.01);
}

.faq-question h3 {
    font-size: 1.2rem;
    margin: 0;
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--color-text);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-accent);
    transition: transform 0.3s;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 32px;
}

.faq-answer p {
    padding-bottom: 24px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* FAQ Active State */
.faq-item.faq-open {
    border-color: var(--color-accent);
}

.faq-item.faq-open .faq-question {
    background: rgba(204, 255, 0, 0.05);
}

.faq-item.faq-open .faq-question h3 {
    color: #fff; /* Ensure visibility */
}

.faq-item.faq-open .faq-icon {
    transform: rotate(45deg);
    color: var(--color-accent);
}

.faq-item.faq-open .faq-answer {
    max-height: 300px; /* Arbitrary large height */
}

/* ANIMATIONS */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Delays for staggered animations if needed */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }

/* FOOTER */
footer {
    padding: 64px 0;
    text-align: center;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    font-size: 0.9rem;
    font-family: var(--font-tech);
    text-transform: uppercase;
    letter-spacing: 2px;
    background: #000;
}