/* ===================================
   NEXTGEN - DESIGN SYSTEM
   =================================== */

/* Variables CSS */
:root {
    /* Brand Colors */
    --color-primary: #223947;
    --color-primary-dark: #1B2D38;
    --color-primary-light: #2F4F63;

    /* Backgrounds */
    --color-bg-hero: #020B19;
    --color-bg-alt: #030F1F;
    --color-surface: #051628;
    --color-border: #081830;

    /* Accent */
    --color-accent: #5130A5;
    --color-accent-glow: #6A56D6;

    /* Text */
    --color-text: #F5F7FA;
    --color-text-muted: #B6C2CD;

    /* Status */
    --color-success: #22C55E;
    --color-error: #EF4444;

    /* Layout */
    --container-max: 1280px;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;

    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;

    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 300ms ease;
}

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

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg-hero);
    overflow-x: hidden;
    width: 100%;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===================================
   3D BACKGROUND CANVAS
   =================================== */

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

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

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

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(2, 11, 25, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(8, 24, 48, 0.5);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-menu a {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--color-text);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-base);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-primary {
    background: var(--color-accent);
    color: white;
    box-shadow: 0 0 0 0 rgba(81, 48, 165, 0);
}

.btn-primary:hover {
    background: var(--color-accent-glow);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(81, 48, 165, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(81, 48, 165, 0.1);
    border-color: var(--color-accent-glow);
    transform: translateY(-2px);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 60% 40%;
    gap: var(--spacing-3xl);
    align-items: center;
}

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

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.hero-badges {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-text-muted);
}

.badge svg {
    color: var(--color-accent);
}

.hero-visual {
    height: 500px;
    position: relative;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   SECTIONS
   =================================== */

section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: 40px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-xl);
}

.section-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ===================================
   SOLUTIONS SECTION
   =================================== */

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

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.card-stagger {
    transform: translateY(calc(var(--stagger) * 40px));
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent);
    box-shadow: 0 0 32px rgba(81, 48, 165, 0.3);
}

.card-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.card-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.card-price {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

/* ===================================
   WHY WORKS SECTION (BENTO)
   =================================== */

.bento-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.bento-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.bento-large {
    grid-row: span 2;
}

.bento-item:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.bento-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(81, 48, 165, 0.1);
    border-radius: 8px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.bento-item h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.bento-item p {
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ===================================
   DEMOS SECTION
   =================================== */

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

.demos-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

.demo-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

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

.demo-featured {
    grid-row: span 2;
}

.demo-thumbnail {
    aspect-ratio: 16/9;
    background: var(--color-bg-hero);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-placeholder {
    color: var(--color-text-muted);
    opacity: 0.5;
}

.demo-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.demo-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tag {
    font-size: 12px;
    padding: 4px 12px;
    background: rgba(81, 48, 165, 0.2);
    color: var(--color-accent);
    border-radius: 4px;
}

/* ===================================
   PROCESS SECTION (TIMELINE)
   =================================== */

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

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    font-size: 24px;
    font-weight: 700;
    color: var(--color-accent);
    position: relative;
    z-index: 1;
}

.timeline-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.timeline-duration {
    font-size: 14px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--color-text-muted);
}

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

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

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-accent);
}

.faq-question {
    padding: var(--spacing-lg);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    color: var(--color-accent);
    transition: transform var(--transition-base);
}

.faq-item[open] .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

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

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

.cta-final {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-glow) 100%);
    position: relative;
    overflow: hidden;
}

.cta-final::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.05) 50%, transparent 70%),
        repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255, 255, 255, 0.03) 10px, rgba(255, 255, 255, 0.03) 20px);
    pointer-events: none;
}

.cta-final-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.cta-final h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.cta-final p {
    font-size: 18px;
    opacity: 0.9;
}

.cta-final-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.cta-final .btn-primary {
    background: white;
    color: var(--color-accent);
}

.cta-final .btn-primary:hover {
    background: var(--color-text);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.cta-final .btn-secondary {
    border-color: white;
    color: white;
}

.cta-final .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

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

.footer {
    background: var(--color-bg-hero);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: var(--spacing-sm);
}

.footer-col a {
    color: var(--color-text-muted);
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: 14px;
    color: var(--color-text-muted);
}

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

/* ===================================
   DEV MODAL (GenAI)
   =================================== */
.dev-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.dev-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.dev-modal {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--spacing-xl);
    max-width: 480px;
    width: 90%;
    text-align: center;
    position: relative;
    transform: scale(0.9);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.dev-modal-overlay.active .dev-modal {
    transform: scale(1);
}

.dev-modal-icon {
    width: 64px;
    height: 64px;
    background: rgba(81, 48, 165, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: var(--color-accent);
}

.dev-modal h3 {
    font-size: 24px;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.dev-modal p {
    color: var(--color-text-muted);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.dev-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s;
}

.dev-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
}

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        height: 300px;
        order: 0;
        margin-bottom: var(--spacing-lg);
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-badges {
        justify-content: center;
    }

    .solutions-grid {
        grid-template-columns: 1fr;
    }

    .card-stagger {
        transform: none;
    }

    .demos-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 48px;
        --spacing-2xl: 32px;
        --spacing-xl: 24px;
        --spacing-lg: 16px;
    }

    /* GLOBAL OVERFLOW FIX */
    html,
    body {
        overflow-x: hidden;
        width: 100vw;
        max-width: 100vw;
        position: relative;
    }

    .container {
        padding: 0 var(--spacing-sm);
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }

    section {
        padding: var(--spacing-2xl) 0;
        width: 100%;
        overflow-x: hidden;
    }

    /* HERO: FIX EMPTY SPACE AT TOP */
    .hero {
        padding-top: 80px;
        /* Reduced padding */
        min-height: auto;
        /* Remove 100vh requirement */
        height: auto;
        /* Allow content to determine height */
        padding-bottom: var(--spacing-2xl);
        display: block;
        /* Remove flex centering causing mid-page vertical alignment */
    }

    .hero-grid {
        display: block;
        /* Stack vertically */
    }

    .hero-content {
        margin-top: var(--spacing-xl);
        /* Add small top margin */
        text-align: center;
    }

    /* HEADER: BETTER ALIGNMENT */
    .header {
        background: rgba(2, 11, 25, 0.95);
    }

    .logo img {
        height: 32px;
        /* Smaller logo mobile */
        width: auto;
    }

    .nav-actions {
        gap: 8px;
    }

    .nav-actions .btn {
        display: inline-flex !important;
        padding: 6px 12px;
        font-size: 13px;
        min-height: 32px;
        white-space: nowrap;
    }

    /* NAV MENU */
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--color-bg-hero);
        flex-direction: column;
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        z-index: 1001;
        opacity: 0;
        transition: all var(--transition-base);
        pointer-events: none;
        gap: var(--spacing-md);
        width: 100%;
        box-sizing: border-box;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    /* CONTENT SIZING FIXES */
    .hero-title {
        font-size: 32px;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 100%;
        justify-content: center;
        box-sizing: border-box;
    }

    /* NAV MENU TOGGLE FIX */
    .nav-toggle {
        display: flex !important;
        margin-left: auto;
        /* Push to right */
    }

    /* DEMOS PAGE OVERFLOW FIXES */
    .demos-filter {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
        width: 100%;
        max-width: 100%;
    }

    .filter-btn {
        flex: 1 1 auto;
        /* Allow shrink */
        min-width: 0;
        font-size: 14px;
        padding: 8px 16px;
    }

    .demos-grid {
        display: grid;
        grid-template-columns: 1fr;
        /* Force single column */
        width: 100%;
        max-width: 100%;
        padding: 0;
        gap: var(--spacing-md);
    }

    .demo-card {
        width: 100%;
        max-width: 100%;
        margin: 0;
        box-sizing: border-box;
    }

    /* GENAI / CARDS OVERFLOW */
    .solutions-grid,
    .footer-grid,
    .bento-grid,
    .modules-grid,
    .devis-grid {
        grid-template-columns: 1fr;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        display: grid;
    }

    .card,
    .bento-item,
    .faq-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box;
        margin-bottom: var(--spacing-md);
    }

    /* TIMELINE */
    .timeline::before {
        left: 19px;
    }

    .timeline-item {
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }

    .timeline-number {
        width: 40px;
        height: 40px;
        font-size: 18px;
        border-width: 2px;
        flex-shrink: 0;
    }

    /* FOOTER & WIDGETS */
    .cta-final-grid,
    .cta-final-actions {
        flex-direction: column;
        width: 100%;
    }

    .cta-final-actions .btn {
        width: 100%;
        margin-bottom: 8px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .whatsapp-widget span {
        display: none;
    }

    .whatsapp-widget {
        padding: 14px;
        border-radius: 50%;
        bottom: 20px;
        right: 20px;
    }
}

/* ===================================
   DEV MODAL (GenAI)
   =================================== */
.dev-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.dev-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.dev-modal {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--spacing-xl);
    max-width: 480px;
    width: 90%;
    text-align: center;
    position: relative;
    transform: scale(0.9);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.dev-modal-overlay.active .dev-modal {
    transform: scale(1);
}

.dev-modal-icon {
    width: 64px;
    height: 64px;
    background: rgba(81, 48, 165, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: var(--color-accent);
}

.dev-modal h3 {
    font-size: 24px;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.dev-modal p {
    color: var(--color-text-muted);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.dev-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s;
}

.dev-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
}