/* ===============================================
   BrainFarm – Silicon Hiland
   Premium Website Styles
   =============================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #1a5f2a;
    --primary-light: #2d8a3e;
    --primary-dark: #0f3d1a;
    --secondary: #c9a227;
    --secondary-light: #e0b830;
    --accent: #3498db;
    --accent-green: #27ae60;
    
    /* Neutrals */
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-gray: #e9ecef;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --black: #1a1a2e;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1a5f2a 0%, #2d8a3e 50%, #27ae60 100%);
    --gradient-gold: linear-gradient(135deg, #c9a227 0%, #e0b830 50%, #f4d35e 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 100%);
    --gradient-hero: linear-gradient(180deg, rgba(26, 95, 42, 0.95) 0%, rgba(15, 61, 26, 0.98) 100%);
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--black);
}

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

ul, ol {
    list-style: none;
}

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

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===============================================
   Navigation
   =============================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    padding: 15px 0;
}

.navbar.scrolled .nav-logo .logo-text,
.navbar.scrolled .nav-link {
    color: var(--black);
}

.navbar.scrolled .nav-toggle span {
    background: var(--black);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    transition: var(--transition-normal);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 35px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--white);
    position: relative;
    padding: 5px 0;
    transition: var(--transition-normal);
}

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

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

.nav-link.nav-cta {
    background: var(--gradient-gold);
    color: var(--black);
    padding: 10px 25px;
    border-radius: var(--radius-xl);
    font-weight: 600;
}

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

.nav-link.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition-normal);
}

/* ===============================================
   Hero Section
   =============================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-particles {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
        radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 100px 100px, 150px 150px, 80px 80px;
    animation: particlesFloat 20s linear infinite;
}

@keyframes particlesFloat {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100px); }
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at top, rgba(39, 174, 96, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(201, 162, 39, 0.15) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 100px 20px 60px;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 10px 25px;
    border-radius: var(--radius-xl);
    color: var(--white);
    font-size: 0.9rem;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-badge i {
    color: var(--secondary);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--white);
    margin-bottom: 25px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.title-brand {
    font-size: 1.3em;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-divider {
    font-size: 0.5em;
    opacity: 0.5;
}

.title-sub {
    font-size: 0.5em;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle strong {
    color: var(--secondary);
}

.hero-statements {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.statement {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

.statement-not {
    color: var(--secondary);
    font-weight: 600;
}

.hero-highlight {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 25px 40px;
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-highlight p {
    color: var(--white);
    font-size: 1.1rem;
    line-height: 1.8;
}

.hero-highlight strong {
    color: var(--secondary);
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 35px;
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--black);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(201, 162, 39, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero-scroll a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* ===============================================
   Section Common Styles
   =============================================== */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(26, 95, 42, 0.1);
    padding: 8px 20px;
    border-radius: var(--radius-xl);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 20px;
    color: var(--black);
}

.section-desc {
    font-size: 1.15rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

/* ===============================================
   IP Market Section
   =============================================== */
.ip-market {
    background: var(--off-white);
}

.ip-stats {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
}

.stat-card {
    background: var(--white);
    padding: 40px 60px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.stat-icon i {
    font-size: 2rem;
    color: var(--white);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--gray);
}

.ip-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.case-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 20px;
    align-items: flex-start;
    position: relative;
    transition: var(--transition-normal);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.case-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.case-logo.google {
    background: linear-gradient(135deg, #4285f4, #34a853, #fbbc05, #ea4335);
    color: var(--white);
    font-size: 1.5rem;
}

.case-logo.ibm {
    background: #1f70c1;
    color: var(--white);
    font-size: 0.9rem;
}

.case-logo.huawei {
    background: #c7000b;
    color: var(--white);
    font-size: 0.9rem;
}

.case-content h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-family: var(--font-body);
    font-weight: 600;
}

.case-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.case-content p {
    font-size: 0.95rem;
    color: var(--gray);
}

.case-content strong {
    color: var(--black);
}

.case-year {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 0.8rem;
    color: var(--gray);
    background: var(--light-gray);
    padding: 5px 12px;
    border-radius: var(--radius-sm);
}

.ip-opportunity {
    max-width: 800px;
    margin: 0 auto;
}

.opportunity-card {
    background: var(--gradient-dark);
    padding: 40px;
    border-radius: var(--radius-lg);
    color: var(--white);
}

.opportunity-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.opportunity-header i {
    font-size: 2.5rem;
    color: var(--secondary);
}

.opportunity-header h3 {
    font-size: 1.5rem;
    color: var(--white);
}

.opportunity-reasons h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.8);
}

.opportunity-reasons ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.opportunity-reasons li {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.opportunity-reasons li i {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--secondary);
}

.opportunity-reasons li div {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
}

.opportunity-reasons li strong {
    color: var(--white);
}

.opportunity-cta {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.opportunity-cta i {
    font-size: 1.5rem;
    color: var(--secondary);
}

.opportunity-cta p {
    font-size: 1.1rem;
    line-height: 1.7;
}

.opportunity-cta strong {
    color: var(--secondary);
}

/* ===============================================
   Silicon Hiland Section
   =============================================== */
.silicon-hiland {
    background: var(--white);
}

.dilinh-intro {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-bottom: 50px;
}

.dilinh-climate {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--gradient-primary);
    padding: 20px 40px;
    border-radius: var(--radius-xl);
    color: var(--white);
}

.climate-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.climate-icon i {
    font-size: 1.5rem;
}

.climate-info {
    display: flex;
    flex-direction: column;
}

.climate-temp {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
}

.climate-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.dilinh-features {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.dilinh-features span {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    color: var(--gray);
}

.dilinh-features i {
    color: var(--primary);
}

.hiland-definition {
    margin-bottom: 50px;
}

.definition-card {
    background: var(--off-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    border-left: 5px solid var(--primary);
}

.definition-card h3 {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 15px;
    font-family: var(--font-body);
    font-weight: 500;
}

.definition-main {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary);
    font-weight: 600;
}

.hiland-activities {
    margin-bottom: 50px;
}

.hiland-activities h3 {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: var(--black);
}

.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.activity-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.activity-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.activity-item p {
    font-size: 1rem;
    color: var(--dark-gray);
}

.hiland-unique {
    margin-bottom: 50px;
}

.unique-statement {
    background: linear-gradient(135deg, rgba(26, 95, 42, 0.05) 0%, rgba(39, 174, 96, 0.1) 100%);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.unique-statement p {
    font-size: 1.15rem;
    color: var(--dark-gray);
    margin-bottom: 15px;
}

.unique-statement p:last-child {
    margin-bottom: 0;
}

.unique-statement strong {
    color: var(--primary);
}

.unique-reason {
    font-style: italic;
}

.hiland-advantages {
    margin-bottom: 50px;
}

.hiland-advantages h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.advantage-icon i {
    font-size: 1.8rem;
    color: var(--white);
}

.advantage-card h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.advantage-card p {
    font-size: 0.95rem;
    color: var(--gray);
}

.deepbrain-mechanism {
    max-width: 900px;
    margin: 0 auto;
}

.deepbrain-card {
    background: var(--gradient-dark);
    padding: 50px;
    border-radius: var(--radius-lg);
    color: var(--white);
}

.deepbrain-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.deepbrain-header i {
    font-size: 2rem;
    color: var(--secondary);
}

.deepbrain-header h3 {
    font-size: 1.8rem;
    color: var(--white);
}

.deepbrain-investment {
    text-align: center;
    margin-bottom: 40px;
}

.investment-amount {
    display: block;
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
}

.investment-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.deepbrain-results {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.result-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
}

.result-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary);
    min-width: 80px;
}

.result-text {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.deepbrain-vision {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.deepbrain-vision p {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.deepbrain-vision i {
    color: var(--secondary);
    font-size: 1.5rem;
}

.deepbrain-vision strong {
    color: var(--secondary);
}

/* ===============================================
   Digital Nomad Section
   =============================================== */
.digital-nomad {
    background: linear-gradient(180deg, var(--off-white) 0%, var(--white) 100%);
}

.nomad-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.nomad-stat {
    background: var(--white);
    padding: 30px 50px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.nomad-stat.future {
    background: var(--gradient-primary);
    color: var(--white);
}

.stat-year {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 10px;
}

.nomad-stat.future .stat-year {
    color: rgba(255, 255, 255, 0.8);
}

.nomad-stat .stat-value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.nomad-stat.future .stat-value {
    color: var(--white);
}

.nomad-stat .stat-label {
    font-size: 1rem;
    color: var(--gray);
}

.nomad-stat.future .stat-label {
    color: rgba(255, 255, 255, 0.9);
}

.stat-arrow {
    font-size: 2rem;
    color: var(--primary);
}

.nomad-qualities {
    margin-bottom: 60px;
}

.nomad-qualities h3 {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 30px;
}

.qualities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.quality-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.quality-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.quality-item i {
    width: 45px;
    height: 45px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
    flex-shrink: 0;
}

.quality-item span {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dark-gray);
}

.nomad-advantage {
    margin-bottom: 50px;
}

.advantage-comparison {
    max-width: 800px;
    margin: 0 auto;
}

.comparison-vs {
    display: flex;
    align-items: stretch;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.vs-item {
    flex: 1;
    min-width: 280px;
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.vs-item.old {
    background: var(--light-gray);
    opacity: 0.7;
}

.vs-item.new {
    background: var(--gradient-primary);
    color: var(--white);
}

.vs-item i {
    font-size: 2.5rem;
}

.vs-item.old i {
    color: var(--gray);
}

.vs-item span {
    font-size: 1.1rem;
    font-weight: 600;
}

.vs-cost {
    font-size: 0.9rem !important;
    font-weight: 400 !important;
    color: var(--gray);
}

.vs-benefit {
    font-size: 0.9rem !important;
    font-weight: 400 !important;
    opacity: 0.9;
}

.vs-divider {
    display: flex;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.nomad-role {
    max-width: 700px;
    margin: 0 auto;
}

.role-card {
    background: var(--gradient-gold);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.role-card i {
    font-size: 3rem;
    color: var(--primary-dark);
}

.role-card p {
    font-size: 1.2rem;
    color: var(--black);
    line-height: 1.7;
}

.role-card strong {
    color: var(--primary-dark);
}

/* ===============================================
   Ecosystem Section (11 IP)
   =============================================== */
.ecosystem {
    background: linear-gradient(180deg, var(--white) 0%, var(--off-white) 100%);
}

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

.intro-elements {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.intro-elements span {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--white);
    border-radius: var(--radius-xl);
    font-size: 0.95rem;
    color: var(--dark-gray);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.intro-elements span:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.intro-elements span i {
    color: var(--primary);
}

.ip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.ip-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
}

.ip-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.ip-card.featured {
    background: var(--gradient-dark);
    color: var(--white);
}

.ip-card.featured .ip-title,
.ip-card.featured .ip-subtitle {
    color: var(--white);
}

.ip-card.featured .ip-features li {
    color: rgba(255, 255, 255, 0.9);
}

.ip-card.featured .ip-tag {
    background: rgba(255, 255, 255, 0.15);
    color: var(--secondary);
}

.ip-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: rgba(26, 95, 42, 0.1);
    line-height: 1;
}

.ip-card.featured .ip-number {
    color: rgba(255, 255, 255, 0.1);
}

.ip-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.ip-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.ip-title {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--black);
}

.ip-subtitle {
    font-size: 0.95rem;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 20px;
}

.ip-features {
    margin-bottom: 20px;
}

.ip-features li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    font-size: 0.9rem;
    color: var(--gray);
    border-bottom: 1px solid var(--light-gray);
}

.ip-card.featured .ip-features li {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.ip-features li:last-child {
    border-bottom: none;
}

.ip-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

.ip-card.featured .ip-features li::before {
    color: var(--secondary);
}

.ip-tag {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 15px;
    background: rgba(26, 95, 42, 0.08);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--primary);
}

.ip-tag i {
    color: var(--secondary);
    flex-shrink: 0;
    margin-top: 2px;
}

/* ===============================================
   Investor Section
   =============================================== */
.investor {
    background: var(--off-white);
}

.investor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.investor-card {
    background: var(--white);
    padding: 35px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.investor-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.investor-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.investor-card:hover::before {
    transform: scaleX(1);
}

.investor-card.highlight {
    background: var(--gradient-primary);
    color: var(--white);
    grid-column: span 2;
}

.investor-card.highlight::before {
    background: var(--gradient-gold);
}

.investor-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.investor-card.highlight .investor-icon {
    background: rgba(255, 255, 255, 0.2);
}

.investor-icon i {
    font-size: 1.8rem;
    color: var(--white);
}

.investor-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-family: var(--font-body);
    font-weight: 600;
}

.investor-card.highlight h3 {
    color: var(--white);
}

.investor-card p {
    font-size: 0.95rem;
    color: var(--gray);
}

.investor-card.highlight p {
    color: rgba(255, 255, 255, 0.9);
}

/* ===============================================
   Partnership Section
   =============================================== */
.partnership {
    background: linear-gradient(180deg, var(--off-white) 0%, var(--white) 100%);
}

.partnership-content {
    max-width: 900px;
    margin: 0 auto;
}

.partnership-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.partnership-header {
    background: var(--gradient-primary);
    padding: 40px;
    text-align: center;
    color: var(--white);
}

.partnership-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.partnership-icon i {
    font-size: 2.5rem;
    color: var(--secondary);
}

.partnership-header h3 {
    font-size: 2rem;
    color: var(--white);
    margin: 0;
}

.profit-split {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px 30px;
    gap: 30px;
    flex-wrap: wrap;
    background: linear-gradient(135deg, rgba(26, 95, 42, 0.03) 0%, rgba(201, 162, 39, 0.03) 100%);
}

.profit-item {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
    transition: var(--transition-normal);
}

.profit-item.investor {
    background: var(--gradient-gold);
    box-shadow: 0 10px 40px rgba(201, 162, 39, 0.3);
}

.profit-item.company {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 10px 40px rgba(26, 95, 42, 0.3);
}

.profit-item:hover {
    transform: translateY(-10px);
}

.profit-percent {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 10px;
}

.profit-item.investor .profit-percent {
    color: var(--primary-dark);
}

.profit-item.company .profit-percent {
    color: var(--white);
}

.profit-label {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.profit-item.investor .profit-label {
    color: var(--primary-dark);
}

.profit-desc {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 15px;
}

.profit-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.profit-icon i {
    font-size: 1.3rem;
}

.profit-item.investor .profit-icon i {
    color: var(--primary-dark);
}

.profit-item.company .profit-icon i {
    color: var(--white);
}

.profit-divider {
    font-size: 2rem;
    color: var(--gray);
}

.partnership-services {
    padding: 40px 50px;
    border-top: 1px solid var(--light-gray);
}

.partnership-services h4 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-body);
}

.partnership-services h4 i {
    color: var(--accent-green);
}

.partnership-services ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.partnership-services li {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: var(--off-white);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.partnership-services li:hover {
    background: rgba(26, 95, 42, 0.1);
    transform: translateX(10px);
}

.partnership-services li i {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.partnership-services li span {
    font-size: 0.95rem;
    color: var(--dark-gray);
}

.partnership-cta {
    padding: 30px 50px 50px;
    text-align: center;
}

.btn-partnership {
    background: var(--gradient-gold);
    color: var(--black);
    padding: 18px 50px;
    border-radius: var(--radius-xl);
    font-size: 1.1rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-normal);
    box-shadow: 0 8px 30px rgba(201, 162, 39, 0.3);
}

.btn-partnership:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 45px rgba(201, 162, 39, 0.4);
}

/* ===============================================
   CTA Section
   =============================================== */
.cta-section {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
    padding: 120px 0;
}

.cta-bg {
    position: absolute;
    inset: 0;
}

.cta-particles {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
        radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 80px 80px, 120px 120px;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--white);
    margin-bottom: 20px;
}

.cta-text {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: 10px;
}

.cta-highlight {
    font-size: 1.2rem;
    color: var(--secondary);
    margin-bottom: 40px;
}

.cta-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-cta-primary {
    background: var(--gradient-gold);
    color: var(--black);
    padding: 18px 40px;
    border-radius: var(--radius-xl);
    font-size: 1.1rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-normal);
}

.btn-cta-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(201, 162, 39, 0.4);
}

.btn-cta-secondary {
    background: transparent;
    color: var(--white);
    padding: 18px 40px;
    border-radius: var(--radius-xl);
    font-size: 1.1rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    transition: var(--transition-normal);
}

.btn-cta-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-5px);
}

/* ===============================================
   Footer
   =============================================== */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-logo i {
    color: var(--secondary);
}

.footer-brand p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
}

.footer-tagline {
    color: var(--secondary) !important;
    font-weight: 500;
}

.footer-links h4 {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 20px;
    font-family: var(--font-body);
    font-weight: 600;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-links li {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--secondary);
}

.footer-links li i {
    color: var(--secondary);
    width: 20px;
}

.footer-social h4 {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 20px;
    font-family: var(--font-body);
    font-weight: 600;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    transition: var(--transition-normal);
}

.social-icons a:hover {
    background: var(--secondary);
    color: var(--black);
    transform: translateY(-5px);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ===============================================
   Back to Top Button
   =============================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ===============================================
   Responsive Styles
   =============================================== */
@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr 1fr;
    }
    
    .investor-card.highlight {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 100px 40px 40px;
        gap: 25px;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        color: var(--black);
        font-size: 1.1rem;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .navbar.scrolled .nav-toggle span {
        background: var(--black);
    }
    
    .hero-statements {
        flex-direction: column;
        gap: 15px;
    }
    
    .ip-cases {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .nomad-stats {
        flex-direction: column;
    }
    
    .stat-arrow {
        transform: rotate(90deg);
    }
    
    /* Partnership responsive */
    .profit-split {
        flex-direction: column;
        padding: 30px 20px;
    }
    
    .profit-divider {
        transform: rotate(90deg);
    }
    
    .partnership-services {
        padding: 30px 20px;
    }
    
    .partnership-services ul {
        grid-template-columns: 1fr;
    }
    
    .partnership-cta {
        padding: 20px;
    }
    
    .btn-partnership {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    .comparison-vs {
        flex-direction: column;
    }
    
    .vs-divider {
        transform: rotate(90deg);
    }
    
    .ip-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .deepbrain-card {
        padding: 30px 20px;
    }
    
    .result-item {
        flex-direction: column;
        text-align: center;
    }
    
    .result-number {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .hero-content {
        padding: 80px 15px 50px;
    }
    
    .hero-highlight {
        padding: 20px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .stat-card {
        padding: 30px;
    }
    
    .case-card {
        flex-direction: column;
        text-align: center;
    }
    
    .opportunity-card {
        padding: 25px;
    }
    
    .dilinh-climate {
        flex-direction: column;
        text-align: center;
        padding: 25px;
    }
    
    .cta-actions {
        flex-direction: column;
    }
    
    .btn-cta-primary,
    .btn-cta-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ===============================================
   Animation Classes
   =============================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Selection */
::selection {
    background: var(--primary);
    color: var(--white);
}