/* ==========================================
   AGRINODE - Landing Page Styles
   ========================================== */

/* CSS Variables */
:root {
    --color-primary: #22c55e;
    --color-primary-dark: #16a34a;
    --color-primary-light: #4ade80;
    --color-secondary: #0ea5e9;
    --color-accent: #a855f7;

    --color-bg: #0a0f0d;
    --color-bg-secondary: #111916;
    --color-bg-tertiary: #1a2420;

    --color-text: #f0fdf4;
    --color-text-secondary: #86efac;
    --color-text-muted: #6b7c74;

    --color-border: rgba(34, 197, 94, 0.2);
    --color-glow: rgba(34, 197, 94, 0.5);

    --font-primary: 'Noto Sans JP', sans-serif;
    --font-display: 'Orbitron', sans-serif;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* 3D Canvas */
#network-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-normal);
    background: linear-gradient(to bottom, rgba(10, 15, 13, 0.9), transparent);
}

.navbar.scrolled {
    background: rgba(10, 15, 13, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 0.1em;
}

.logo-icon {
    color: var(--color-primary);
    font-size: 1.8rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

.logo-text {
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-normal);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-normal);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 24px;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    z-index: 1;
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: var(--color-primary);
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg);
    box-shadow: 0 4px 30px var(--color-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px var(--color-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: fadeIn 1s ease 1s forwards;
    opacity: 0;
}

.scroll-indicator span {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* Section Styles */
section {
    position: relative;
    z-index: 1;
    padding: 120px 0;
}

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

.section-label {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 0.3em;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.3;
}

/* About Section */
.about {
    background: linear-gradient(180deg, transparent 0%, var(--color-bg-secondary) 50%, transparent 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text {
    font-size: 1.1rem;
}

.about-lead {
    font-size: 1.3rem;
    color: var(--color-text);
    margin-bottom: 24px;
    font-weight: 500;
}

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-card {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(34, 197, 94, 0.1);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-unit {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--color-primary);
}

.stat-label {
    display: block;
    margin-top: 8px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* Services Section */
.services {
    background: var(--color-bg);
}

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

.service-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 40px 32px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

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

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: 0 20px 60px rgba(34, 197, 94, 0.15);
}

.service-card.featured {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
}

.service-card.featured::before {
    transform: scaleX(1);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.service-badge {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-bg);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.service-subtitle {
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.service-description {
    color: var(--color-text-secondary);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.service-features {
    margin-bottom: 24px;
}

.service-features li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.service-features li::before {
    content: '◇';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-size: 0.7rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-weight: 600;
    transition: var(--transition-fast);
}

.service-link:hover {
    gap: 12px;
}

/* Technology Section */
.technology {
    background: linear-gradient(180deg, transparent 0%, var(--color-bg-secondary) 50%, transparent 100%);
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.tech-visual {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.tech-node {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    transition: var(--transition-normal);
    animation: nodeFloat 3s ease-in-out infinite;
}

.tech-node:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    transform: scale(1.1);
}

.tech-node.central {
    width: 80px;
    height: 80px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    z-index: 2;
    box-shadow: 0 0 40px var(--color-glow);
    animation: centralPulse 2s ease-in-out infinite;
}

.tech-node:not(.central) {
    top: calc(50% + sin(var(--angle)) * var(--distance));
    left: calc(50% + cos(var(--angle)) * var(--distance));
    transform: translate(-50%, -50%);
}

.tech-node:nth-child(2) { top: calc(50% - 0px); left: calc(50% + 120px); animation-delay: 0s; }
.tech-node:nth-child(3) { top: calc(50% - 114px); left: calc(50% + 37px); animation-delay: 0.5s; }
.tech-node:nth-child(4) { top: calc(50% - 70px); left: calc(50% - 97px); animation-delay: 1s; }
.tech-node:nth-child(5) { top: calc(50% + 70px); left: calc(50% - 97px); animation-delay: 1.5s; }
.tech-node:nth-child(6) { top: calc(50% + 114px); left: calc(50% + 37px); animation-delay: 2s; }

@keyframes nodeFloat {
    0%, 100% { transform: translate(-50%, -50%) translateY(0); }
    50% { transform: translate(-50%, -50%) translateY(-5px); }
}

@keyframes centralPulse {
    0%, 100% { box-shadow: 0 0 40px var(--color-glow); }
    50% { box-shadow: 0 0 60px var(--color-glow), 0 0 80px rgba(34, 197, 94, 0.3); }
}

.tech-connections {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.connection {
    stroke: var(--color-primary);
    stroke-width: 1;
    opacity: 0.3;
    stroke-dasharray: 5, 5;
    animation: dashMove 20s linear infinite;
}

@keyframes dashMove {
    to { stroke-dashoffset: -100; }
}

.tech-description {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.tech-item h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--color-text);
}

.tech-item p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Vision Section */
.vision {
    text-align: center;
    background: radial-gradient(ellipse at center, var(--color-bg-tertiary) 0%, var(--color-bg) 70%);
    padding: 160px 24px;
}

.vision-content {
    max-width: 800px;
    margin: 0 auto;
}

.vision-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 32px;
}

.vision-text {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    line-height: 2;
}

/* Contact Section */
.contact {
    background: var(--color-bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    padding: 40px 0;
}

.company-info h3 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.company-info p {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.contact-label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
}

.contact-item a {
    font-size: 1.1rem;
    color: var(--color-primary);
    transition: var(--transition-fast);
}

.contact-item a:hover {
    color: var(--color-primary-light);
}

.contact-form {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 16px 20px;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--color-text);
    transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-group select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2386efac' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group select option {
    background: var(--color-bg-secondary);
    color: var(--color-text);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--color-bg);
    padding: 60px 0 30px;
    border-top: 1px solid var(--color-border);
}

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

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

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

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
    color: var(--color-text);
}

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

.footer-column a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
}

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

/* Responsive */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .tech-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 15, 13, 0.98);
        padding: 20px;
        gap: 20px;
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

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

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 30px;
    }

    section {
        padding: 80px 0;
    }

    .hero {
        padding: 100px 24px 80px;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .contact-form {
        padding: 24px;
    }

    .service-card {
        padding: 32px 24px;
    }
}