/* =====================================================
   NUMERECH
   Corporate Modern Consulting Stylesheet
===================================================== */

/* =====================================================
   DESIGN SYSTEM & VARIABLES
===================================================== */

:root {
        /* Modern Dark Palette */
        --bg-dark: #060B13;
        --bg-dark-card: #0D1522;
        --border-dark: rgba(255, 255, 255, 0.08);
        --text-light: #E2E8F0;

        /* Clean Light Palette */
        --bg-light: #F8FAFC;
        --bg-card-light: #FFFFFF;

        /* Brand Colors */
        --primary: #0F172A;
        --primary-accent: #0284C7;
        --accent-glow: #38BDF8;
        --text-dark: #0F172A;
        --text-body: #475467;
        --text-muted: #64748B;
        --border: #E2E8F0;

        /* Typography */
        --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
        --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

        /* Layout & Effects */
        --container: 1200px;
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --radius-pill: 9999px;
        --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
        --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
        --shadow-hover: 0 20px 40px rgba(15, 23, 42, 0.12);
        --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

html {
        scroll-behavior: smooth;
        background-color: var(--bg-light);
}

section[id] {
        scroll-margin-top: 100px;
}

body {
        font-family: var(--font-body);
        color: var(--text-body);
        line-height: 1.6;
        background-color: var(--bg-light);
        -webkit-font-smoothing: antialiased;
}

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

.container {
        width: min(90%, var(--container));
        margin: auto;
}

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

h1,
h2,
h3 {
        font-family: var(--font-heading);
        color: var(--text-dark);
        letter-spacing: -0.03em;
        font-weight: 700;
}

h1 {
        font-size: clamp(2.3rem, 4.2vw, 3.8rem);
        line-height: 1.1;
}

h2 {
        font-size: clamp(1.85rem, 3vw, 2.6rem);
        line-height: 1.2;
}

h3 {
        font-size: 1.25rem;
        line-height: 1.35;
}

.section-tag {
        font-family: var(--font-heading);
        font-size: 0.8rem;
        font-weight: 700;
        letter-spacing: 2px;
        color: var(--primary-accent);
        text-transform: uppercase;
        margin-bottom: 0.75rem;
}

.section-header {
        margin-bottom: 3.5rem;
        max-width: 720px;
}

.section-intro {
        font-size: 1.15rem;
        color: var(--text-muted);
        margin-top: 1rem;
}

/* =====================================================
   HEADER & NAVIGATION
===================================================== */

.header {
        position: fixed;
        top: 20px;
        left: 0;
        right: 0;
        z-index: 1000;
        transition: var(--transition);
}

.navbar {
        height: 70px;
        background: rgba(255, 255, 255, 0.88);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border: 1px solid rgba(226, 232, 240, 0.8);
        border-radius: var(--radius-pill);
        padding: 0 2rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        box-shadow: var(--shadow-sm);
}

.logo {
        font-family: var(--font-heading);
        font-size: 1.3rem;
        font-weight: 800;
        letter-spacing: 3px;
        color: var(--primary);
}

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

.nav-links {
        display: flex;
        gap: 2rem;
        list-style: none;
}

.nav-links a {
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--text-dark);
        transition: var(--transition);
}

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

.btn-nav {
        background: var(--primary);
        color: white;
        padding: 10px 22px;
        border-radius: var(--radius-pill);
        font-size: 0.9rem;
        font-weight: 600;
        transition: var(--transition);
}

.btn-nav:hover {
        background: var(--primary-accent);
}

.menu-toggle {
        display: none;
        border: none;
        background: none;
        font-size: 1.5rem;
        cursor: pointer;
}

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

.hero {
        position: relative;
        min-height: calc(100vh - 80px);
        padding-top: 160px;
        padding-bottom: 140px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: radial-gradient(circle at 50% 20%, rgba(56, 189, 248, 0.07) 0%, transparent 60%),
                linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
        overflow: hidden;
}

.hero-container {
        max-width: 900px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
}

/* Badges */
.badges-wrapper {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.6rem;
        margin-bottom: 2rem;
}

.badge {
        font-family: 'Space Grotesk', sans-serif;
        font-size: 0.8rem;
        font-weight: 600;
        letter-spacing: 0.5px;
        color: var(--primary-accent);
        background: rgba(2, 132, 199, 0.06);
        border: 1px solid rgba(2, 132, 199, 0.18);
        padding: 6px 14px;
        border-radius: var(--radius-pill);
        transition: var(--transition);
}

.badge:hover {
        background: rgba(2, 132, 199, 0.12);
        border-color: var(--primary-accent);
}

/* Typography */
.hero-title {
        font-family: 'Space Grotesk', var(--font-heading);
        font-size: clamp(2.4rem, 4.5vw, 3.8rem);
        font-weight: 700;
        line-height: 1.15;
        color: var(--primary);
        letter-spacing: -0.02em;
}

.hero-subheadline {
        display: block;
        font-size: clamp(1.15rem, 2vw, 1.6rem);
        font-weight: 500;
        color: var(--primary-accent);
        margin-top: 0.85rem;
        line-height: 1.35;
}

.hero-description {
        font-size: clamp(1.05rem, 1.5vw, 1.1rem);
        line-height: 1.65;
        color: var(--text-muted);
        max-width: 700px;
        margin: 1.75rem auto 2.5rem;
}

/* Buttons */
.hero-buttons {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 1.25rem;
}

/* Scroll Indicator */
.scroll-indicator {
        position: absolute;
        bottom: 25px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 6px;
        color: var(--text-muted);
        font-family: 'Space Grotesk', sans-serif;
        font-size: 0.75rem;
        font-weight: 600;
        letter-spacing: 1.5px;
        text-transform: uppercase;
        text-decoration: none;
        opacity: 0.7;
        transition: var(--transition);
}

.scroll-indicator:hover {
        opacity: 1;
        color: var(--primary-accent);
}

.mouse-icon {
        width: 22px;
        height: 36px;
        border: 2px solid currentColor;
        border-radius: 12px;
        position: relative;
}

.wheel {
        width: 4px;
        height: 7px;
        background-color: currentColor;
        border-radius: 2px;
        position: absolute;
        top: 6px;
        left: 50%;
        transform: translateX(-50%);
        animation: scrollWheel 2s infinite cubic-bezier(0.65, 0, 0.35, 1);
}

.scroll-arrow {
        font-size: 0.9rem;
        animation: bounceArrow 2s infinite;
}

@keyframes scrollWheel {
        0% {
                opacity: 1;
                transform: translate(-50%, 0);
        }

        100% {
                opacity: 0;
                transform: translate(-50%, 12px);
        }
}

@keyframes bounceArrow {

        0%,
        20%,
        50%,
        80%,
        100% {
                transform: translateY(0);
        }

        40% {
                transform: translateY(4px);
        }

        60% {
                transform: translateY(2px);
        }
}

/* =====================================================
   HERO BUTTONS REFINEMENTS
===================================================== */

.hero-buttons {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 1.25rem;
}

.btn-primary {
        background: var(--primary);
        color: #ffffff;
        padding: 16px 32px;
        border-radius: var(--radius-pill);
        font-weight: 600;
        font-size: 0.95rem;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        transition: var(--transition);
        box-shadow: 0 4px 14px rgba(15, 23, 42, 0.15);
}

.btn-primary .arrow {
        display: inline-block;
        transition: transform 0.25s ease;
}

.btn-primary:hover {
        background: var(--primary-accent);
        box-shadow: 0 6px 20px rgba(2, 132, 199, 0.25);
        transform: translateY(-2px);
}

/* Slide arrow on hover */
.btn-primary:hover .arrow {
        transform: translateX(4px);
}

.btn-secondary {
        border: 1px solid var(--border);
        background: #ffffff;
        color: var(--text-dark);
        padding: 16px 32px;
        border-radius: var(--radius-pill);
        font-weight: 600;
        font-size: 0.95rem;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
}

.btn-secondary:hover {
        border-color: var(--primary-accent);
        color: var(--primary-accent);
        background: rgba(2, 132, 199, 0.04);
        transform: translateY(-2px);
}

/* Accessibility Focus States */
.btn-primary:focus-visible,
.btn-secondary:focus-visible {
        outline: 2px solid var(--primary-accent);
        outline-offset: 3px;
}

/* =====================================================
   SECTIONS & CARDS
===================================================== */

.section {
        padding: 100px 0;
}

.dark-section {
        background: var(--bg-dark);
        color: white;
}

.dark-section h2,
.dark-section h3 {
        color: white;
}

/* Section Création de Valeur & Grid Two Columns */
.value-creation {
        background-color: #F1F5F9;
        /* Distinct slate/gray contrast */
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
}


.grid-two-columns {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 3.5rem;
        align-items: center;
        margin-bottom: 4rem;
}

.compact-card {
        width: 100%;
        max-width: 380px;
        margin: 0 auto;
}

.sf-card-preview {
        box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
        border: 1px solid var(--border-dark);
        background: var(--bg-dark-card);
        overflow: hidden;
        border-radius: var(--radius-md);
        transition: var(--transition);
}

.sf-card-preview:hover {
        border-color: rgba(255, 255, 255, 0.25);
        transform: translateY(-4px);
}

.card-header-bar {
        background: rgba(255, 255, 255, 0.04);
        padding: 12px 16px;
        display: flex;
        gap: 6px;
        border-bottom: 1px solid var(--border-dark);
}

.card-header-bar .dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background-color: rgba(255, 255, 255, 0.2);
}

.image-container {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: #FFFFFF;
        padding: 1.25rem;
}

.hero-img {
        width: 100%;
        height: auto;
        display: block;
        object-fit: contain;
        border-radius: 4px;
}

/* Challenge Grid */
.challenge-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
}

.challenge-card {
        background: var(--bg-card-light);
        padding: 2.25rem 1.75rem;
        border-radius: var(--radius-md);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
}

.challenge-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-hover);
        border-color: var(--primary-accent);
}

.card-index {
        font-family: var(--font-heading);
        font-size: 0.9rem;
        font-weight: 800;
        color: var(--primary-accent);
        margin-bottom: 1.25rem;
}

/* Manifesto Section */
.manifesto-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
}

.manifesto-card {
        background: var(--bg-dark-card);
        border: 1px solid var(--border-dark);
        padding: 2.5rem;
        border-radius: var(--radius-md);
        transition: var(--transition);
}

.manifesto-card:hover {
        border-color: var(--primary-accent);
        transform: translateY(-4px);
}

.manifesto-num {
        font-family: var(--font-heading);
        color: var(--accent-glow);
        font-weight: 800;
        font-size: 1.1rem;
        display: block;
        margin-bottom: 0.75rem;
}

.manifesto-card p {
        color: var(--text-light);
}

/* Process Section */
.process-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
}

.process-step {
        background: white;
        padding: 2.25rem 1.75rem;
        border-radius: var(--radius-md);
        border: 1px solid var(--border);
        transition: var(--transition);
}

.process-step:hover {
        border-color: var(--primary-accent);
}

.step-num {
        font-family: var(--font-heading);
        font-size: 1.25rem;
        font-weight: 800;
        color: var(--primary-accent);
        display: block;
        margin-bottom: 1rem;
}

/* Expertise Grid */
.expertise-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
}

.expertise-card {
        background: var(--bg-dark-card);
        border: 1px solid var(--border-dark);
        padding: 2.5rem 2rem;
        border-radius: var(--radius-md);
        transition: var(--transition);
}

.expertise-card h3 {
        margin-bottom: 0.75rem;
}

.expertise-card p {
        color: var(--text-light);
        font-size: 0.95rem;
}

.expertise-card:hover {
        transform: translateY(-5px);
        border-color: var(--primary-accent);
        box-shadow: 0 12px 30px rgba(2, 132, 199, 0.15);
}

/* Industry Pills */
.industry-pills {
        display: flex;
        flex-wrap: wrap;
        gap: 1rem;
}

.pill {
        background: white;
        border: 1px solid var(--border);
        padding: 14px 28px;
        border-radius: var(--radius-pill);
        font-weight: 600;
        font-size: 0.95rem;
        color: var(--text-dark);
        transition: var(--transition);
}

.pill:hover {
        background: var(--primary);
        color: white;
        border-color: var(--primary);
        transform: translateY(-2px);
}

/* Insights Grid */
.insight-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
}

.insight-card {
        background: white;
        padding: 2.25rem;
        border-radius: var(--radius-md);
        border: 1px solid var(--border);
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        transition: var(--transition);
}

.insight-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-hover);
        border-color: var(--primary-accent);
}

.insight-tag {
        font-family: 'Space Grotesk', sans-serif;
        font-size: 0.75rem;
        font-weight: 700;
        color: var(--primary-accent);
        letter-spacing: 1px;
        margin-bottom: 1rem;
}

.read-more {
        margin-top: 1.5rem;
        font-weight: 600;
        color: var(--primary-accent);
        display: inline-block;
        transition: var(--transition);
}

.read-more:hover {
        transform: translateX(4px);
}

/* Contact Banner */
.contact-box {
        padding: 5rem 3rem;
        text-align: center;
        color: white;
}

.contact-box h2 {
        color: white;
        margin-bottom: 1rem;
}

.contact-box p {
        color: var(--text-muted);
        max-width: 600px;
        margin: 0 auto 2.5rem;
}

.btn-large {
        padding: 18px 40px;
        font-size: 1.05rem;
}

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

.footer {
        background: var(--bg-dark);
        color: white;
        padding: 50px 0 35px;
        border-top: 1px solid var(--border-dark);
}

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

.logo-footer {
        color: white;
}

.footer-brand p {
        color: var(--text-muted);
        font-size: 0.9rem;
        margin-top: 0.5rem;
}

.footer-bottom {
        color: var(--text-muted);
        font-size: 0.85rem;
}

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

@media (max-width: 1024px) {

        .challenge-grid,
        .process-grid,
        .expertise-grid,
        .insight-grid,
        .manifesto-grid {
                grid-template-columns: repeat(2, 1fr);
        }
}

@media (max-width: 768px) {

        .nav-links,
        .btn-nav {
                display: none;
        }

        .menu-toggle {
                display: block;
        }

        .nav-links.mobile-open {
                display: flex !important;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 2rem;
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-hover);
                z-index: 1001;
        }

        .grid-two-columns,
        .challenge-grid,
        .process-grid,
        .expertise-grid,
        .insight-grid,
        .manifesto-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
        }

        .footer-content {
                flex-direction: column;
                gap: 2rem;
                text-align: center;
        }

        .hero-buttons {
                flex-direction: column;
                width: 100%;
        }

        .btn-primary,
        .btn-secondary {
                width: 100%;
                justify-content: center;
        }
}