/* ========================================
   VISAGE - Luxury Digital Agency
   Horizontal Scrolling Website
   ======================================== */

/* CSS Variables */
:root {
    /* Colors - Matte Black Paper Luxury */
    --black-deep: #0a0a0a;
    --black-matte: #121212;
    --black-paper: #1a1a1a;
    --black-soft: #222222;
    --gray-dark: #2a2a2a;
    --gray-medium: #3a3a3a;
    --gray-text: #6a6a6a;
    --gray-light: #8a8a8a;
    --gray-subtle: #a0a0a0;
    --white-soft: #e8e8e8;
    --white-muted: #c0c0c0;
    
    /* Accent - Subtle, almost imperceptible */
    --accent-gold: #b8a369;
    --accent-copper: #8b7355;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-base: 14px;
    --letter-spacing: 0.12em;
    --letter-spacing-wide: 0.2em;
    --letter-spacing-ultra: 0.35em;
    
    /* Spacing */
    --section-padding: 80px;
    --nav-height: 80px;
    
    /* Transitions */
    --transition-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-expo: cubic-bezier(0.19, 1, 0.22, 1);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    overflow: hidden;
}

body {
    font-family: var(--font-primary);
    font-weight: 300;
    background-color: var(--black-deep);
    color: var(--gray-light);
    line-height: 1.7;
    letter-spacing: var(--letter-spacing);
    overflow: hidden;
    cursor: auto;
}

/* Custom Cursor - Disabled */
.cursor-follower {
    display: none;
}

/* Typography Utilities */
.thin {
    font-weight: 200;
}

.bold {
    font-weight: 900;
}

/* Selection */
::selection {
    background: var(--gray-medium);
    color: var(--white-soft);
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 30px;
    padding-left: 30px;
    border-left: 1px solid var(--gray-dark);
}

.lang-btn {
    background: none;
    border: none;
    color: var(--gray-text);
    font-family: var(--font-primary);
    font-size: 11px;
    font-weight: 300;
    letter-spacing: var(--letter-spacing-wide);
    cursor: pointer;
    padding: 8px;
    transition: color 0.4s var(--transition-smooth);
}

.lang-btn:hover,
.lang-btn.active {
    color: var(--white-soft);
}

.lang-divider {
    color: var(--gray-dark);
    font-weight: 200;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 60px;
    z-index: 100;
    background: linear-gradient(to bottom, var(--black-deep) 0%, transparent 100%);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    animation: fadeIn 1s var(--transition-expo) 0.5s forwards;
}

.logo-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.logo-text {
    color: var(--gray-subtle);
    font-family: var(--font-primary);
    font-size: 14px;
    font-weight: 200;
    letter-spacing: var(--letter-spacing-ultra);
}

.nav-links {
    display: flex;
    gap: 50px;
    opacity: 0;
    animation: fadeIn 1s var(--transition-expo) 0.7s forwards;
}

.nav-link {
    color: var(--gray-text);
    text-decoration: none;
    font-size: 11px;
    font-weight: 300;
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    position: relative;
    padding: 10px 0;
    transition: color 0.4s var(--transition-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gray-subtle);
    transition: width 0.6s var(--transition-expo);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white-soft);
}

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

.nav-link.client-link {
    border: 1px solid var(--gray-dark);
    padding: 10px 20px;
    transition: all 0.4s var(--transition-smooth);
}

.nav-link.client-link::after {
    display: none;
}

.nav-link.client-link:hover {
    border-color: var(--gray-medium);
    background: var(--gray-dark);
}

.nav-link.help-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--gray-dark);
    border-radius: 50%;
    padding: 0;
    transition: all 0.4s var(--transition-smooth);
    cursor: pointer;
}

.nav-link.help-link svg {
    pointer-events: none;
}

.nav-link.help-link::after {
    display: none;
}

.nav-link.help-link:hover {
    border-color: var(--accent-gold);
    background: rgba(184, 163, 105, 0.1);
}

.nav-link.help-link:hover svg {
    stroke: var(--accent-gold);
}

/* Vertical Progress Bar */
.vertical-progress {
    position: fixed;
    right: 40px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.vertical-progress-track {
    width: 1px;
    height: 120px;
    background: var(--gray-dark);
    position: relative;
    overflow: hidden;
}

.vertical-progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: var(--gray-subtle);
    transition: height 0.8s var(--transition-expo);
}

.vertical-progress-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    letter-spacing: var(--letter-spacing-wide);
    color: var(--gray-text);
}

.current-section {
    font-weight: 400;
    color: var(--gray-subtle);
    font-size: 12px;
}

.section-divider {
    font-weight: 200;
    opacity: 0.5;
}

.total-sections {
    font-weight: 200;
}

/* Home Button */
.home-btn {
    background: none;
    border: none;
    padding: 8px;
    cursor: none;
    opacity: 0.4;
    transition: all 0.4s var(--transition-smooth);
    margin-bottom: 15px;
}

.home-btn:hover {
    opacity: 1;
}

.home-btn svg {
    width: 18px;
    height: 18px;
    color: var(--gray-subtle);
}

/* Scroll Navigation */
.scroll-nav {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 40px;
}

.scroll-arrow {
    background: none;
    border: none;
    padding: 10px;
    cursor: none;
    opacity: 0.3;
    transition: all 0.4s var(--transition-smooth);
}

.scroll-arrow:hover {
    opacity: 0.8;
}

.scroll-arrow svg {
    width: 50px;
    height: 16px;
    color: var(--gray-subtle);
    transition: transform 0.4s var(--transition-expo);
}

.scroll-arrow-left:hover svg {
    transform: translateX(-5px);
}

.scroll-arrow-right:hover svg {
    transform: translateX(5px);
}

.scroll-arrow.disabled {
    opacity: 0.1;
    pointer-events: none;
}

.progress-dots {
    display: flex;
    gap: 16px;
}

.dot {
    width: 6px;
    height: 6px;
    border: 1px solid var(--gray-dark);
    border-radius: 50%;
    cursor: none;
    transition: all 0.4s var(--transition-smooth);
}

.dot:hover {
    border-color: var(--gray-medium);
}

.dot.active {
    background: var(--gray-subtle);
    border-color: var(--gray-subtle);
}

/* Main Horizontal Container */
.horizontal-container {
    display: flex;
    height: 100vh;
    width: 500vw;
    transition: transform 0.9s var(--transition-expo);
}

/* Sections */
.section {
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.section-content {
    width: 100%;
    max-width: 1400px;
    padding: 0 var(--section-padding);
    position: relative;
    z-index: 2;
}

/* Section Titles */
.section-title {
    display: flex;
    align-items: baseline;
    gap: 20px;
    margin-bottom: 60px;
}

.title-number {
    font-size: 11px;
    font-weight: 200;
    color: var(--gray-text);
    letter-spacing: var(--letter-spacing-wide);
}

.section-title > span:last-child {
    font-size: 11px;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-ultra);
    color: var(--gray-subtle);
}

/* Geometric Elements */
.geometric-element {
    position: absolute;
    z-index: 1;
    opacity: 0.03;
    pointer-events: none;
}

.geo-circle {
    width: 600px;
    height: 600px;
    border: 1px solid var(--gray-light);
    border-radius: 50%;
    animation: rotate 60s linear infinite;
}

.geo-line {
    position: absolute;
    background: var(--gray-light);
}

.geo-line-1 {
    width: 1px;
    height: 400px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
}

.geo-line-2 {
    width: 1px;
    height: 400px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
}

.geo-square {
    width: 400px;
    height: 400px;
    border: 1px solid var(--gray-light);
    animation: rotate 80s linear infinite reverse;
}

.geo-triangle {
    width: 0;
    height: 0;
    border-left: 200px solid transparent;
    border-right: 200px solid transparent;
    border-bottom: 346px solid var(--gray-dark);
    opacity: 0.5;
    animation: pulse 8s ease-in-out infinite;
}

.geo-hexagon {
    width: 300px;
    height: 173px;
    background: var(--gray-dark);
    position: relative;
    opacity: 0.5;
}

.geo-hexagon::before,
.geo-hexagon::after {
    content: '';
    position: absolute;
    width: 0;
    border-left: 150px solid transparent;
    border-right: 150px solid transparent;
}

.geo-hexagon::before {
    bottom: 100%;
    border-bottom: 86px solid var(--gray-dark);
}

.geo-hexagon::after {
    top: 100%;
    border-top: 86px solid var(--gray-dark);
}

.geo-dots {
    width: 200px;
    height: 200px;
    background-image: radial-gradient(var(--gray-medium) 1px, transparent 1px);
    background-size: 20px 20px;
}

/* Home Geo Position */
.home-geo {
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
}

.about-geo {
    right: 5%;
    bottom: 10%;
}

.solutions-geo {
    left: 5%;
    top: 15%;
}

.contact-geo {
    right: 10%;
    bottom: 15%;
}

.client-geo {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

/* ========================================
   HOME SECTION
   ======================================== */
.section-home {
    background: 
        radial-gradient(ellipse at 20% 50%, var(--black-paper) 0%, transparent 50%),
        var(--black-deep);
}

.home-content {
    max-width: 800px;
}

.tagline-container {
    margin-bottom: 40px;
}

.line-reveal {
    overflow: hidden;
    margin-bottom: 10px;
}

.tagline-line {
    display: block;
    font-size: clamp(28px, 4vw, 48px);
    line-height: 1.2;
    color: var(--white-soft);
    opacity: 0;
    transform: translateY(40px);
    animation: revealUp 1.2s var(--transition-expo) forwards;
}

.line-reveal:nth-child(1) .tagline-line {
    animation-delay: 2.2s;
}

.line-reveal:nth-child(2) .tagline-line {
    animation-delay: 2.4s;
}

.home-subtitle {
    margin-bottom: 80px;
    opacity: 0;
    animation: fadeIn 1s var(--transition-expo) 2.8s forwards;
}

.home-subtitle p {
    font-size: 16px;
    color: var(--gray-light);
}

.mobile-break {
    display: none;
}

.scroll-indicator {
    display: flex;
    align-items: center;
    gap: 15px;
    opacity: 0;
    animation: fadeIn 1s var(--transition-expo) 3.2s forwards;
}

.scroll-line {
    width: 60px;
    height: 1px;
    background: var(--gray-dark);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100%;
    background: var(--gray-subtle);
    animation: scrollLine 2s ease-in-out infinite;
}

.scroll-indicator span {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-ultra);
    color: var(--gray-text);
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.section-about {
    background: 
        radial-gradient(ellipse at 80% 30%, var(--black-paper) 0%, transparent 40%),
        var(--black-deep);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 100px;
    align-items: start;
}

.about-intro p {
    font-size: 20px;
    line-height: 1.8;
    color: var(--gray-light);
}

.about-right {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.about-block {
    padding: 30px;
    border: 1px solid var(--gray-dark);
    background: linear-gradient(135deg, var(--black-paper) 0%, var(--black-deep) 100%);
    transition: all 0.6s var(--transition-expo);
}

.about-block:hover {
    border-color: var(--gray-medium);
    transform: translateY(-5px);
}

.block-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 25px;
}

.block-icon svg {
    width: 100%;
    height: 100%;
    color: var(--gray-subtle);
}

.about-block h3 {
    font-size: 14px;
    margin-bottom: 15px;
    color: var(--white-soft);
}

.about-block p {
    font-size: 12px;
    color: var(--gray-text);
    line-height: 1.8;
}

/* ========================================
   SOLUTIONS SECTION
   ======================================== */
.section-solutions {
    background: 
        radial-gradient(ellipse at 30% 70%, var(--black-paper) 0%, transparent 40%),
        var(--black-deep);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px 80px;
}

.solution-category {
    position: relative;
    padding-left: 20px;
    border-left: 1px solid var(--gray-dark);
    transition: border-color 0.4s var(--transition-smooth);
}

.solution-category:hover {
    border-color: var(--gray-medium);
}

.category-title {
    font-size: 16px;
    margin-bottom: 25px;
    color: var(--white-soft);
}

.solution-list {
    list-style: none;
}

.solution-list li {
    font-size: 12px;
    color: var(--gray-text);
    padding: 4px 0;
    position: relative;
    cursor: default;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.section-contact {
    background: 
        radial-gradient(ellipse at 70% 50%, var(--black-paper) 0%, transparent 40%),
        var(--black-deep);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 100px;
    align-items: start;
}

.contact-intro p {
    font-size: 32px;
    line-height: 1.4;
    color: var(--white-soft);
}

.contact-form {
    max-width: 500px;
}

.form-group {
    position: relative;
    margin-bottom: 40px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--gray-dark);
    padding: 15px 0;
    font-family: var(--font-primary);
    font-size: 14px;
    font-weight: 300;
    color: var(--white-soft);
    letter-spacing: var(--letter-spacing);
    outline: none;
    transition: border-color 0.4s var(--transition-smooth);
    cursor: text;
}

.form-group textarea {
    resize: none;
    min-height: 80px;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--gray-medium);
}

.form-group label {
    position: absolute;
    left: 0;
    top: 15px;
    font-size: 12px;
    color: var(--gray-text);
    letter-spacing: var(--letter-spacing);
    pointer-events: none;
    transition: all 0.4s var(--transition-expo);
}

.form-group input:focus ~ label,
.form-group input:valid ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:valid ~ label {
    top: -10px;
    font-size: 10px;
    color: var(--gray-subtle);
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gray-subtle);
    transition: width 0.6s var(--transition-expo);
}

.form-group input:focus ~ .input-line,
.form-group textarea:focus ~ .input-line {
    width: 100%;
}

.submit-btn {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    background: transparent;
    border: 1px solid var(--gray-dark);
    padding: 18px 35px;
    font-family: var(--font-primary);
    font-size: 11px;
    font-weight: 300;
    color: var(--gray-light);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    cursor: none;
    transition: all 0.4s var(--transition-smooth);
}

.submit-btn svg {
    width: 18px;
    height: 18px;
    transition: transform 0.4s var(--transition-expo);
}

.submit-btn:hover {
    background: var(--gray-dark);
    border-color: var(--gray-medium);
    color: var(--white-soft);
}

.submit-btn:hover svg {
    transform: translateX(5px);
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    background: transparent;
    border: 1px solid var(--gray-dark);
    border-radius: 50%;
    color: var(--gray-light);
    cursor: none;
    transition: all 0.4s var(--transition-smooth);
}

.whatsapp-btn svg {
    width: 22px;
    height: 22px;
}

.whatsapp-btn:hover {
    background: var(--gray-dark);
    border-color: var(--gray-medium);
    color: var(--white-soft);
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: 100px;
    right: 40px;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: transparent;
    border: 1px solid var(--gray-dark);
    border-radius: 50%;
    color: var(--gray-light);
    cursor: none;
    transition: all 0.4s var(--transition-smooth);
    opacity: 0;
    animation: fadeIn 1s var(--transition-expo) 3s forwards, whatsappPulse 2s ease-in-out 4s infinite;
}

.whatsapp-float svg {
    width: 24px;
    height: 24px;
}

.whatsapp-float:hover {
    background: var(--gray-dark);
    border-color: var(--gray-medium);
    color: var(--white-soft);
    transform: scale(1.1);
    animation: none;
}

@keyframes whatsappPulse {
    0%, 100% {
        border-color: var(--gray-dark);
        color: var(--gray-light);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    }
    50% {
        border-color: var(--gray-medium);
        color: var(--white-soft);
        box-shadow: 0 0 15px 2px rgba(255, 255, 255, 0.1);
    }
}

/* ========================================
   CLIENT SECTION
   ======================================== */
.section-client {
    background: 
        radial-gradient(ellipse at 50% 50%, var(--black-paper) 0%, transparent 50%),
        var(--black-deep);
}

.section-client .section-content {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.client-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.client-intro {
    margin-bottom: 60px;
}

.client-intro p {
    font-size: 28px;
    color: var(--white-soft);
}

.client-btn {
    display: inline-flex;
    align-items: center;
    gap: 20px;
    background: transparent;
    border: 1px solid var(--gray-dark);
    padding: 25px 50px;
    font-family: var(--font-primary);
    font-size: 12px;
    font-weight: 300;
    color: var(--gray-light);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.4s var(--transition-smooth);
}

.client-btn svg {
    width: 20px;
    height: 20px;
    transition: transform 0.4s var(--transition-expo);
}

.client-btn:hover {
    background: var(--white-soft);
    border-color: var(--white-soft);
    color: var(--black-deep);
}

.client-btn:hover svg {
    transform: scale(1.1);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px 60px;
    z-index: 50;
    pointer-events: none;
}

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

.footer-copy,
.footer-tagline,
.footer-links {
    font-size: 10px;
    color: var(--gray-text);
    letter-spacing: var(--letter-spacing);
}

.footer-hub {
    color: var(--white-soft);
    font-weight: 700;
}

.footer-links {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links a {
    color: var(--gray-text);
    text-decoration: none;
    transition: color 0.3s ease;
    opacity: 0.7;
}

.footer-links a:hover {
    color: var(--gray-light);
    opacity: 1;
}

.footer-separator {
    color: var(--gray-text);
    opacity: 0.5;
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes revealUp {
    from {
        opacity: 0;
        transform: translateY(100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.02);
    }
}

@keyframes scrollLine {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Section reveal animations */
.section-content {
    opacity: 1;
    transform: translateX(0);
    transition: all 1s var(--transition-expo);
}

/* Stagger animations for grid items */
.about-block,
.solution-category {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--transition-expo);
}

.section.active .about-block,
.section.active .solution-category {
    opacity: 1;
    transform: translateY(0);
}

.section.active .about-block:nth-child(1),
.section.active .solution-category:nth-child(1) { transition-delay: 0.1s; }
.section.active .about-block:nth-child(2),
.section.active .solution-category:nth-child(2) { transition-delay: 0.2s; }
.section.active .about-block:nth-child(3),
.section.active .solution-category:nth-child(3) { transition-delay: 0.3s; }
.section.active .solution-category:nth-child(4) { transition-delay: 0.4s; }
.section.active .solution-category:nth-child(5) { transition-delay: 0.5s; }
.section.active .solution-category:nth-child(6) { transition-delay: 0.6s; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1200px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-right {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px 60px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 20px;
        --nav-height: 50px;
    }
    
    /* Keep horizontal scroll between sections, but allow vertical scroll WITHIN sections */
    .section {
        overflow-y: auto;
        overflow-x: hidden;
        align-items: flex-start;
    }
    
    .section-content {
        height: auto;
        min-height: auto;
        padding-bottom: 150px;
        padding-top: 80px;
    }
    
    /* HOME section - fit in viewport, keep centered */
    .section-home {
        align-items: center;
    }
    
    .section-home .section-content {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        min-height: calc(100vh - 120px);
        padding-top: 0;
        overflow: hidden;
    }
    
    .section-home .home-content {
        width: 100%;
    }
    
    .section-home .tagline-container {
        margin-bottom: 15px;
    }
    
    .section-home .tagline-line {
        font-size: 24px;
        line-height: 1.2;
    }
    
    .section-home .home-subtitle {
        margin-bottom: 30px;
    }
    
    .section-home .home-subtitle p {
        font-size: 14px;
        line-height: 1.5;
    }
    
    .section-home .scroll-indicator {
        margin-top: 20px;
    }
    
    /* ABOUT section - scrollable with right margin */
    .section-about {
        scroll-snap-align: start;
        justify-content: flex-start;
    }
    
    .section-about .section-content {
        padding-right: 60px;
        padding-top: 80px;
    }
    
    .section-about .section-title {
        margin-bottom: 15px;
    }
    
    .section-about .about-intro {
        margin-bottom: 20px;
    }
    
    .section-about .about-intro p {
        font-size: 14px;
    }
    
    .section-about .about-grid {
        gap: 15px;
    }
    
    .section-about .about-block {
        padding: 12px;
    }
    
    .section-about .about-block h3 {
        font-size: 12px;
    }
    
    .section-about .about-block p {
        font-size: 10px;
    }
    
    /* SOLUTIONS section - single column with right margin */
    .section-solutions {
        scroll-snap-align: start;
        justify-content: flex-start;
    }
    
    .section-solutions .section-content {
        padding-right: 60px;
        padding-top: 80px;
    }
    
    .section-solutions .section-title {
        margin-bottom: 20px;
    }
    
    .section-solutions .solutions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .section-solutions .category-title {
        font-size: 13px;
    }
    
    .section-solutions .solution-list li {
        font-size: 11px;
        padding: 2px 0;
    }
    
    /* CONTACT section - fit in viewport */
    .section-contact .section-content {
        padding-right: 70px;
        padding-top: 80px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        min-height: calc(100vh - 100px);
        overflow: hidden;
    }
    
    .section-contact .contact-grid {
        gap: 20px;
    }
    
    .section-contact .contact-left {
        margin-bottom: 15px;
    }
    
    .section-contact .section-title {
        font-size: 14px;
        margin-bottom: 10px;
    }
    
    .section-contact .contact-intro p {
        font-size: 18px;
    }
    
    .section-contact .form-group {
        margin-bottom: 15px;
    }
    
    .section-contact .form-group input,
    .section-contact .form-group textarea {
        font-size: 16px;
        padding: 10px 0;
    }
    
    .section-contact .form-group label {
        font-size: 11px;
    }
    
    .section-contact .form-group textarea {
        min-height: 50px;
    }
    
    .section-contact .form-actions {
        margin-top: 15px;
    }
    
    .section-contact .submit-btn {
        padding: 12px 20px;
        font-size: 10px;
    }
    
    .section-contact .whatsapp-btn {
        width: 44px;
        height: 44px;
    }
    
    /* Navigation mobile */
    .nav {
        padding: 0 15px;
        background: var(--black-deep);
    }
    
    .nav-links {
        display: none;
    }
    
    .lang-toggle {
        position: absolute;
        top: 50%;
        right: 15px;
        transform: translateY(-50%);
        margin: 0;
        padding: 0;
        border: none;
        z-index: 1001;
        display: flex;
    }
    
    .lang-btn {
        font-size: 10px;
        padding: 5px;
    }
    
    /* Hide cursor on mobile */
    body {
        cursor: auto;
    }
    
    .cursor-follower {
        display: none;
    }
    
    /* Taglines mobile */
    .tagline-line {
        font-size: 20px;
    }
    
    .home-subtitle p {
        font-size: 13px;
    }
    
    .mobile-break {
        display: block;
    }
    
    /* About section mobile */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-right {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .about-intro p {
        font-size: 16px;
    }
    
    .about-block {
        padding: 15px;
    }
    
    .about-block h3 {
        font-size: 14px;
    }
    
    .about-block p {
        font-size: 11px;
    }
    
    /* Solutions section mobile - 2 columns compact */
    .solutions-grid {
        grid-template-columns: 1fr 1fr;
        gap: 15px 20px;
    }
    
    .category-title {
        font-size: 11px;
        margin-bottom: 8px;
    }
    
    .solution-list li {
        font-size: 10px;
        padding: 2px 0;
    }
    
    /* Contact section mobile */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-intro p {
        font-size: 16px;
    }
    
    .form-group {
        margin-bottom: 12px;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 14px;
        padding: 6px 0;
    }
    
    .form-group label {
        font-size: 10px;
    }
    
    .form-group textarea {
        min-height: 50px;
    }
    
    .form-actions {
        flex-direction: row;
        gap: 10px;
    }
    
    .submit-btn {
        flex: 1;
        padding: 12px 15px;
        font-size: 9px;
    }
    
    .whatsapp-btn {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        padding: 0;
    }
    
    /* Client section mobile */
    .client-intro p {
        font-size: 16px;
    }
    
    .client-btn {
        padding: 15px 25px;
        font-size: 10px;
    }
    
    /* Section titles mobile */
    .section-title {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .title-number {
        font-size: 8px;
    }
    
    /* Progress elements mobile */
    .scroll-nav {
        bottom: 20px;
        gap: 20px;
    }
    
    .scroll-arrow svg {
        width: 35px;
        height: 12px;
    }
    
    .vertical-progress {
        right: 15px;
    }
    
    .vertical-progress-track {
        height: 80px;
    }
    
    /* WhatsApp float mobile */
    .whatsapp-float {
        bottom: 80px;
        right: 15px;
        width: 40px;
        height: 40px;
    }
    
    .whatsapp-float svg {
        width: 18px;
        height: 18px;
    }
    
    /* Footer mobile */
    .footer {
        padding: 15px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
    
    .footer-copy,
    .footer-tagline,
    .footer-links {
        font-size: 8px;
    }
    
    .footer-links {
        gap: 6px;
    }
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.02;
    pointer-events: none;
    z-index: 5;
}

/* Vignette effect */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, var(--black-deep) 100%);
    opacity: 0.4;
    pointer-events: none;
    z-index: 4;
}

/* ========================================
   ADVANCED EFFECTS & TRANSITIONS
   ======================================== */

/* Glitch effect on section transition */
.section.transitioning .section-content {
    animation: glitch 0.4s ease;
}

@keyframes glitch {
    0% {
        transform: translateX(0);
        filter: hue-rotate(0deg);
    }
    20% {
        transform: translateX(-2px) skewX(-0.5deg);
    }
    40% {
        transform: translateX(2px) skewX(0.5deg);
    }
    60% {
        transform: translateX(-1px);
    }
    80% {
        transform: translateX(1px);
    }
    100% {
        transform: translateX(0);
    }
}

/* Scan line effect */
.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        transparent 50%,
        rgba(0, 0, 0, 0.02) 50%
    );
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 10;
    opacity: 0.3;
}

/* Floating particles */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--gray-dark);
    border-radius: 50%;
    animation: float 20s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

/* Horizontal line accents */
.section-content::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -100px;
    width: 80px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--gray-dark));
    opacity: 0;
    transition: opacity 0.8s var(--transition-expo) 0.3s;
}

.section.active .section-content::before {
    opacity: 1;
}

/* Text reveal animation */
.text-reveal {
    overflow: hidden;
    display: inline-block;
}

.text-reveal span {
    display: inline-block;
    transform: translateY(100%);
    animation: textReveal 0.8s var(--transition-expo) forwards;
}

@keyframes textReveal {
    to {
        transform: translateY(0);
    }
}

/* Hover glow effect */
.about-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
        rgba(100, 100, 100, 0.1) 0%, 
        transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.about-block:hover::before {
    opacity: 1;
}

.about-block {
    position: relative;
    overflow: hidden;
}

/* Elegant border animation */
.client-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 1px solid transparent;
    transition: all 0.4s ease;
}

.client-btn:hover::before {
    border-color: var(--gray-medium);
    transform: scale(1.05);
    opacity: 0.5;
}

.client-btn {
    position: relative;
}

/* Morphing shapes */
.morph-shape {
    position: absolute;
    width: 300px;
    height: 300px;
    background: linear-gradient(45deg, var(--gray-dark), transparent);
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    animation: morph 15s ease-in-out infinite;
    opacity: 0.03;
}

@keyframes morph {
    0%, 100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    50% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
}

/* Section number styling */
.title-number {
    position: relative;
    padding-right: 20px;
}

.title-number::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    width: 1px;
    height: 0;
    background: var(--gray-dark);
    transition: height 0.6s var(--transition-expo) 0.2s;
    transform: translateY(-50%);
}

.section.active .title-number::after {
    height: 20px;
}

/* Subtle gradient overlay on sections */
.section-home::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(to left, rgba(30, 30, 30, 0.3), transparent);
    pointer-events: none;
}

/* Input focus glow */
.form-group input:focus,
.form-group textarea:focus {
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

/* Button shine effect */
.submit-btn::after,
.client-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.05),
        transparent
    );
    transition: left 0.6s ease;
}

.submit-btn:hover::after,
.client-btn:hover::after {
    left: 100%;
}

.submit-btn,
.client-btn {
    position: relative;
    overflow: hidden;
}

/* Category title underline */
.category-title {
    position: relative;
    display: inline-block;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 1px;
    background: var(--gray-dark);
    transition: width 0.6s var(--transition-expo);
}

.solution-category:hover .category-title::after {
    width: 60px;
    background: var(--gray-medium);
}

/* Smooth page transitions */
.horizontal-container {
    will-change: transform;
}

/* Performance optimization */
.section {
    will-change: opacity;
    backface-visibility: hidden;
}

/* Refined scrollbar (for browsers that show it) */
::-webkit-scrollbar {
    width: 0;
    height: 0;
}

/* Focus states for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 1px solid var(--gray-medium);
    outline-offset: 4px;
}

/* ========================================
   LOGIN FORM INLINE (Client Area)
   ======================================== */
.login-form-inline {
    max-width: 350px;
    margin: 0 auto;
    text-align: left;
}

.form-group-inline {
    margin-bottom: 25px;
}

.form-group-inline input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--gray-dark);
    padding: 15px 0;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 300;
    color: var(--white-soft);
    letter-spacing: 0.12em;
    outline: none;
    transition: border-color 0.4s var(--transition-smooth);
}

.form-group-inline input:focus {
    border-color: var(--gray-medium);
}

.form-group-inline input::placeholder {
    color: var(--gray-text);
    font-size: 12px;
    letter-spacing: 0.12em;
}

.form-options-inline {
    margin-bottom: 30px;
}

.remember-inline {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-text);
    font-size: 11px;
    letter-spacing: 0.1em;
    cursor: pointer;
}

.remember-inline input {
    width: 14px;
    height: 14px;
    accent-color: var(--gray-subtle);
}

.login-message {
    padding: 12px 15px;
    margin-bottom: 20px;
    font-size: 12px;
    letter-spacing: 0.1em;
    display: none;
}

.login-message.error {
    display: block;
    background: transparent;
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

.login-message.success {
    display: block;
    background: transparent;
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.login-form-inline .client-btn {
    width: 100%;
    justify-content: center;
}

.login-form-inline .client-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}