/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Oikon Brand Colors */
    --primary-green: #26753C;
    --accent-green: #8CC63F;
    --support-green: #619C5A;
    --text-dark: #1B1B1B;
    --text-secondary: #4A5568;
    --text-light: #718096;
    --white: #FFFFFF;
    --light-gray: #F7FAFC;
    --light-green: rgba(140, 198, 63, 0.08);
    --section-padding: 100px 0;
    --container-max-width: 1200px;
    --border-radius: 16px;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    
    /* Animation Variables */
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
    --transition-fast: 0.2s var(--ease-out-quart);
    --transition-medium: 0.4s var(--ease-out-quart);
    --transition-slow: 0.8s var(--ease-in-out-quart);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
}

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

/* Typography */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.text-accent {
    color: var(--accent-green);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all var(--transition-medium);
    transform: translateY(0);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    transition: padding var(--transition-medium);
}

.nav.scrolled .nav-content {
    padding: 12px 0;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-brand-text {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-dark);
    transition: color var(--transition-fast);
}

.nav-logo:hover .nav-brand-text {
    color: var(--accent-green);
}

.logo-image {
    height: 40px;
    width: auto;
    transition: all var(--transition-medium);
}

.oikon-logo-nav {
    height: 40px;
    width: auto;
    transition: all var(--transition-medium);
    margin-left: 12px;
}

.nav.scrolled .logo-image,
.nav.scrolled .oikon-logo-nav {
    height: 35px;
}

.nav-menu {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    padding: 8px 0;
}

.nav-link:hover {
    color: var(--accent-green);
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-green), var(--primary-green));
    transition: width var(--transition-medium);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section - FIXED: Removed opacity: 0 to prevent invisible text */
.hero {
    padding: 140px 0 100px;
    background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 50%, rgba(140, 198, 63, 0.03) 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 80% 20%, rgba(140, 198, 63, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-dark);
    /* FIXED: Removed opacity: 0 and transform that made text invisible */
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    /* FIXED: Removed opacity: 0 and transform that made text invisible */
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: center;
    /* FIXED: Removed opacity: 0 and transform that made text invisible */
}

.feature-tag {
    background: var(--white);
    color: var(--primary-green);
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 2px solid var(--accent-green);
    box-shadow: 0 2px 8px rgba(140, 198, 63, 0.15);
    transition: all var(--transition-fast);
    cursor: default;
}

.feature-tag:hover {
    transform: scale(1.05);
    background: var(--accent-green);
    color: var(--white);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin-top: 50px;
    /* FIXED: Removed opacity: 0 and transform that made text invisible */
}

.stat-item {
    text-align: center;
    transition: transform var(--transition-fast);
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-green);
    display: block;
    margin-bottom: 4px;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
}

/* Hero Tech Credit */
.hero-tech-credit {
    margin-top: 40px;
    text-align: center;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.hero-tech-credit:hover {
    opacity: 1;
}

.tech-credit-text {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 8px;
    font-style: italic;
}

.tech-credit-client {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 6px;
    font-style: italic;
}

.tech-credit-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 20px;
    border: 1px solid rgba(140, 198, 63, 0.2);
    transition: all var(--transition-fast);
}

.tech-credit-logo:hover {
    background: rgba(140, 198, 63, 0.1);
    border-color: var(--accent-green);
    transform: scale(1.02);
}

.sciom-logo-small {
    height: 20px;
    width: auto;
    filter: grayscale(0.3);
    transition: filter var(--transition-fast);
}

.tech-credit-logo:hover .sciom-logo-small {
    filter: grayscale(0);
}

.tech-credit-logo span {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.85rem;
}

/* Problem Section */
.problem {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--light-gray) 0%, rgba(247, 250, 252, 0.7) 100%);
    position: relative;
}

.problem::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(75, 85, 99, 0.03) 0%, transparent 50%);
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
    z-index: 2;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 60px;
    position: relative;
    z-index: 2;
}

.problem-item {
    background: var(--white);
    padding: 28px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: all var(--transition-medium);
    border: 1px solid rgba(140, 198, 63, 0.1);
    position: relative;
    overflow: hidden;
}

.problem-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-green), var(--primary-green));
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

.problem-item:hover::before {
    transform: scaleX(1);
}

.problem-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.problem-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--text-dark);
    line-height: 1.3;
}

.problem-item p {
    color: var(--text-secondary);
    line-height: 1.5;
    font-size: 0.95rem;
}

/* Solution Section */
.solution {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--white) 0%, rgba(140, 198, 63, 0.02) 100%);
    position: relative;
}

.solution::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(38, 117, 60, 0.03) 0%, transparent 50%);
    z-index: 1;
}

.solution-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin: 100px 0 80px 0;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.flow-step {
    flex: 1;
    min-width: 280px;
    background: var(--light-gray);
    padding: 45px 24px 32px 24px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    position: relative;
    border: 1px solid rgba(140, 198, 63, 0.15);
    transition: all var(--transition-medium);
    margin-top: 30px;
}

.flow-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-green), var(--primary-green));
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

.flow-step:hover::before {
    transform: scaleX(1);
}

.flow-step:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.step-number {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--primary-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.4rem;
    border: 3px solid var(--white);
    box-shadow: 0 4px 12px rgba(38, 117, 60, 0.3);
    z-index: 10;
}

.flow-step h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.flow-step p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.step-sources,
.step-features,
.step-outputs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.step-sources span,
.step-features span,
.step-outputs span {
    background: var(--white);
    color: var(--primary-green);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--accent-green);
    transition: all var(--transition-fast);
}

.step-sources span:hover,
.step-features span:hover,
.step-outputs span:hover {
    background: var(--accent-green);
    color: var(--white);
    transform: scale(1.05);
}

.flow-arrow {
    font-size: 2rem;
    color: var(--accent-green);
    font-weight: bold;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* Demo Interface - Enhanced Chat Experience */
.demo-interface {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-top: 60px;
    overflow: hidden;
    border: 1px solid rgba(140, 198, 63, 0.1);
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.demo-header {
    background: linear-gradient(90deg, var(--primary-green), var(--accent-green));
    color: var(--white);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.demo-header .left-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.demo-controls {
    display: flex;
    gap: 8px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.control:hover {
    transform: scale(1.2);
}

.control.red { background: #ff5f56; }
.control.yellow { background: #ffbd2e; }
.control.green { background: #27ca3f; }

.demo-title {
    font-weight: 600;
    margin-left: 12px;
}

.demo-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: pulse-status 2s ease-in-out infinite;
}

.status-indicator.online {
    background: #27ca3f;
}

@keyframes pulse-status {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.demo-content {
    padding: 24px;
    min-height: 450px;
    max-height: 550px;
    overflow-y: auto;
    background: linear-gradient(180deg, #fafafa 0%, #ffffff 100%);
}

/* Chat Messages */
.chat-message {
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: slideInMessage 0.5s ease-out forwards;
}

.chat-message.user {
    text-align: right;
}

.chat-message.agent {
    text-align: left;
}

.message-bubble {
    display: inline-block;
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 18px;
    position: relative;
    word-wrap: break-word;
}

.chat-message.user .message-bubble {
    background: var(--accent-green);
    color: var(--white);
    border-bottom-right-radius: 6px;
}

.chat-message.agent .message-bubble {
    background: var(--light-gray);
    color: var(--text-dark);
    border-bottom-left-radius: 6px;
    border: 1px solid rgba(140, 198, 63, 0.2);
}

.message-sender {
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 4px;
    display: block;
}

.chat-message.user .message-sender {
    color: var(--text-secondary);
    text-align: right;
}

.chat-message.agent .message-sender {
    color: var(--primary-green);
    text-align: left;
}

.message-text {
    line-height: 1.6;
    font-size: 0.95rem;
}

.message-text strong {
    color: var(--primary-green);
}

.chat-message.agent .message-text strong {
    color: var(--primary-green);
}

.chat-message.user .message-text strong {
    color: rgba(255, 255, 255, 0.9);
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 16px 0;
    padding: 12px 16px;
    background: var(--light-gray);
    border-radius: 18px;
    border-bottom-left-radius: 6px;
    max-width: fit-content;
    border: 1px solid rgba(140, 198, 63, 0.2);
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: typing 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

.typing-indicator::before {
    content: "Oikon-Agent piše...";
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-right: 8px;
}

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
    40% { transform: scale(1.2); opacity: 1; }
}

/* Demo Input */
.demo-input {
    padding: 16px 24px;
    background: var(--white);
    border-top: 1px solid var(--light-gray);
    display: flex;
    align-items: center;
    gap: 12px;
}

.input-field {
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--light-gray);
    border-radius: 20px;
    padding: 12px 16px;
    border: 1px solid rgba(140, 198, 63, 0.2);
    position: relative;
}

.input-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-style: italic;
}

.cursor-blink {
    color: var(--accent-green);
    font-weight: bold;
    animation: blink 1s infinite;
    margin-left: 2px;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.send-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-green);
    border: none;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(140, 198, 63, 0.3);
}

.send-button:hover {
    background: var(--primary-green);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(140, 198, 63, 0.4);
}

.send-button:active {
    transform: scale(0.95);
}

@keyframes slideInMessage {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Benefits Section */
.benefits {
    padding: var(--section-padding);
    background: linear-gradient(180deg, rgba(140, 198, 63, 0.02) 0%, var(--light-gray) 100%);
    position: relative;
}

.benefits::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 70% 30%, rgba(38, 117, 60, 0.03) 0%, transparent 50%);
    z-index: 1;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    margin: 80px 0;
    position: relative;
    z-index: 2;
}

.benefit-item {
    background: var(--white);
    padding: 32px 24px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: all var(--transition-medium);
    border: 1px solid rgba(140, 198, 63, 0.1);
    position: relative;
    overflow: hidden;
}

.benefit-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-green), var(--primary-green));
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

.benefit-item:hover::before {
    transform: scaleX(1);
}

.benefit-item:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.benefit-icon {
    font-size: 3.5rem;
    margin-bottom: 24px;
    display: block;
}

.benefit-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.benefit-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ROI Stats */
.roi-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin-top: 80px;
    position: relative;
    z-index: 2;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    color: var(--white);
    padding: 40px 32px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: all var(--transition-medium);
    min-width: 200px;
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 25px 50px rgba(38, 117, 60, 0.3);
}

.stat-card .stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 8px;
    display: block;
}

.stat-card .stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.roi-disclaimer {
    margin-top: 40px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.roi-disclaimer p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.5;
    opacity: 0.8;
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(140, 198, 63, 0.05) 0%, transparent 70%);
    z-index: 1;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    position: relative;
    z-index: 2;
    margin-top: 60px;
}

.implementation-overview h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 32px;
    color: var(--text-dark);
}

.implementation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.impl-card {
    background: var(--white);
    padding: 24px 20px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(140, 198, 63, 0.1);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.impl-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-green), var(--primary-green));
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

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

.impl-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(140, 198, 63, 0.2);
}

.impl-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.impl-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.impl-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

.contact-cta {
    display: flex;
    align-items: center;
}

.cta-content {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(140, 198, 63, 0.15);
    width: 100%;
}

.cta-content h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.cta-content p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: rgba(140, 198, 63, 0.05);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.contact-item:hover {
    background: rgba(140, 198, 63, 0.1);
    transform: translateX(4px);
}

.contact-icon {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-details strong {
    color: var(--primary-green);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-details span {
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 60px 0 30px;
    position: relative;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-green);
    transform: translateY(-2px);
}

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

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-developed-by {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.footer-developed-by:hover {
    color: var(--accent-green);
}

.oikon-logo-small {
    height: 24px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: all var(--transition-fast);
}

.footer-developed-by:hover .oikon-logo-small {
    opacity: 1;
    filter: brightness(0) invert(1) sepia(1) saturate(5) hue-rotate(85deg);
}

/* Mobile Styles */
@media (max-width: 1024px) {
    .problem-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }

    .container {
        padding: 0 16px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        padding: 15px;
        display: block;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero {
        padding: 120px 0 80px;
        min-height: 80vh;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-stats {
        gap: 30px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1.1rem;
    }

    .problem-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .solution-flow {
        flex-direction: column;
        gap: 24px;
        margin: 80px 0 60px 0;
    }

    .flow-step {
        margin-top: 25px;
        padding: 40px 20px 28px 20px;
    }

    .step-number {
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
        top: -22px;
    }

    .demo-interface {
        margin: 40px 0;
    }

    .demo-content {
        min-height: 250px;
    }

    .demo-input {
        padding: 12px 16px;
    }

    .input-field {
        padding: 10px 14px;
    }

    .send-button {
        width: 36px;
        height: 36px;
    }

    .flow-arrow {
        transform: rotate(90deg);
        font-size: 1.5rem;
    }

    .roi-stats {
        gap: 30px;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .implementation-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .implementation-overview h3 {
        font-size: 1.5rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-links {
        gap: 20px;
    }

    .footer-bottom-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .hero-tech-credit {
        margin-top: 30px;
    }

    .tech-credit-text {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-features {
        flex-direction: column;
        align-items: center;
    }

    .feature-tag {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .roi-stats {
        flex-direction: column;
        gap: 20px;
    }

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

    .demo-interface {
        margin: 20px -16px;
        border-radius: 0;
    }

    .demo-header {
        padding: 12px 16px;
        font-size: 0.9rem;
    }

    .demo-title {
        margin-left: 8px;
    }

    .demo-content {
        padding: 16px;
        min-height: 200px;
    }

    .message-bubble {
        max-width: 90%;
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .demo-input {
        padding: 10px 16px;
    }

    .footer-bottom-content {
        flex-direction: column;
        gap: 16px;
    }

    .footer-developed-by {
        font-size: 0.85rem;
        gap: 6px;
    }

    .oikon-logo-small {
        height: 20px;
    }

    .hero-tech-credit {
        margin-top: 25px;
    }

    .tech-credit-logo {
        padding: 5px 10px;
    }

    .tech-credit-logo span {
        font-size: 0.8rem;
    }
}

/* Scroll indicator styles */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-green), var(--primary-green));
    z-index: 9999;
    transition: width 0.1s ease;
}

/* Scroll indicator styles */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-green), var(--primary-green));
    z-index: 9999;
    transition: width 0.1s ease;
}