/* LED Stringers - Professional LED Installation Website */

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

:root {
    --primary-gradient: linear-gradient(135deg, #4ade80, #22d3ee);
    --dark-bg: #0a0a0a;
    --dark-card: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --accent-green: #4ade80;
    --accent-cyan: #22d3ee;
    --accent-purple: #a855f7;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 60px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 50% 50%, rgba(74, 222, 128, 0.1), transparent 70%),
                radial-gradient(circle at 80% 20%, rgba(34, 211, 238, 0.1), transparent 60%),
                var(--dark-bg);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent, rgba(10, 10, 10, 0.8));
    pointer-events: none;
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 100px 20px 50px;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 24px);
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

/* Buttons */
.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #000;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(74, 222, 128, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-cyan);
}

/* Sections */
section {
    padding: 100px 0;
}

.section-title {
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: 0 10px 30px rgba(34, 211, 238, 0.2);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Show Controller Section */
.show-controller {
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.05), rgba(34, 211, 238, 0.05));
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.badge {
    display: inline-block;
    background: var(--primary-gradient);
    color: #000;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.controller-info h2 {
    font-size: 42px;
    margin-bottom: 15px;
}

.lead {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.features-list {
    margin: 30px 0;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 16px;
}

.check {
    color: var(--accent-green);
    font-size: 20px;
    font-weight: 700;
}

.controller-buttons {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    flex-wrap: wrap;
}

/* Demo Visual */
.controller-visual {
    position: relative;
}

.demo-box {
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.demo-header {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.demo-dots {
    display: flex;
    gap: 6px;
}

.demo-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
}

.demo-title {
    font-size: 14px;
    color: var(--text-secondary);
}

.demo-body {
    padding: 30px;
}

.timeline-preview {
    display: flex;
    gap: 5px;
    margin-bottom: 30px;
    height: 60px;
}

.effect-block {
    flex: 1;
    background: var(--color);
    border-radius: 8px;
    position: relative;
    width: var(--duration);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

.led-strip {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.led {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-green);
    box-shadow: 0 0 20px var(--accent-green);
    animation: ledPulse 1s infinite;
}

@keyframes ledPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* Portfolio Section */
.portfolio {
    background: var(--dark-bg);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

.portfolio-item {
    aspect-ratio: 4/3;
    border-radius: 12px;
    overflow: hidden;
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.1), rgba(34, 211, 238, 0.1));
}

.placeholder-icon {
    font-size: 64px;
    opacity: 0.5;
}

.portfolio-placeholder p {
    color: var(--text-secondary);
    font-weight: 600;
}

.instagram-cta {
    text-align: center;
}

.instagram-cta p {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.05), rgba(34, 211, 238, 0.05));
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: var(--text-secondary);
}

.contact-item a,
.contact-item p {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s;
}

.contact-item a:hover {
    color: var(--accent-cyan);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.08);
}

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

.contact-form button {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--dark-card);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 15px;
}

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

.footer-links a,
.footer-social a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover,
.footer-social a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .controller-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

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