@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* Dark Mode (Default) */
    --bg-color: #0d1117;
    --accent-color: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.3);
    --text-color: #e6edf3;
    --text-muted: #8b949e;
    --card-bg: rgba(22, 27, 34, 0.7);
    --nav-bg: rgba(13, 17, 23, 0.8);
    --border-color: #30363d;
    --input-bg: #0d1117;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --header-height: 70px;
}

body.light-mode {
    --bg-color: #f0f6ff;
    --accent-color: #0077aa;
    --accent-glow: rgba(0, 119, 170, 0.2);
    --text-color: #0d1117;
    --text-muted: #57606a;
    --card-bg: rgba(255, 255, 255, 0.7);
    --nav-bg: rgba(240, 246, 255, 0.8);
    --border-color: #d0d7de;
    --input-bg: #ffffff;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

h1, h2, h3, h4, .tech-text {
    font-family: var(--font-mono);
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 80px 0;
    position: relative;
}

/* Navbar */
nav {
    height: var(--header-height);
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.5rem;
    display: flex;
}

.logo-flow {
    color: #74ACDF; /* Argentine Celeste */
}

.logo-ar {
    color: #FFFFFF; /* Argentine White */
}

.light-mode .logo-ar {
    text-shadow: 0 0 2px rgba(0,0,0,0.5);
}

.light-mode .logo-flow {
    text-shadow: 0 0 1px rgba(0,0,0,0.2);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-icon:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-cv {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 4px;
    transition: var(--transition);
}

.btn-cv:hover {
    background: var(--accent-color);
    color: var(--bg-color);
}

/* Mobile Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

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

/* Hero Section */
#hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--header-height);
    overflow: hidden;
    position: relative;
}

.hero-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, var(--bg-color) 90%);
    pointer-events: none;
    z-index: 0;
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

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

.hero-content h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}

.hero-content p {
    font-size: clamp(1rem, 3vw, 1.25rem);
    margin-bottom: 2.5rem;
    color: var(--text-muted);
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--bg-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--accent-glow);
}

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

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

/* Sections */
.section-title {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 1rem auto;
    border-radius: 2px;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-top: 4px solid var(--accent-color);
    padding: 2.5rem;
    border-radius: 8px;
    transition: var(--transition);
    height: 100%;
}

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

.service-card svg {
    width: 48px;
    height: 48px;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--text-muted);
}

/* Clients Carousel */
.clients-carousel-container {
    position: relative;
    overflow: hidden;
    padding: 2rem 0;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.clients-track {
    display: flex;
    gap: 2rem;
    padding: 1rem;
    width: max-content;
    animation: autoScroll 60s linear infinite;
}

.clients-track:hover {
    animation-play-state: paused;
}

@keyframes autoScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.clients-track::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.client-card {
    flex: 0 0 300px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 8px;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.client-logo {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.client-info h4 {
    margin-bottom: 0.5rem;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.badge-ins { background: rgba(0, 212, 255, 0.2); color: #00d4ff; }
.badge-con { background: rgba(0, 255, 212, 0.2); color: #00ffd4; }

.client-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

/* Legend */
.clients-legend {
    margin-top: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.legend-header {
    padding: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
}

.legend-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1rem;
}

.legend-content.open {
    max-height: 1000px;
    padding: 1rem;
}

.legend-item {
    margin-bottom: 1.5rem;
}

.legend-item h5 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.legend-item ul {
    font-size: 0.9rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.5rem;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item h4 {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reveal-btn {
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    margin-top: 0.5rem;
}

#whatsapp-links {
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

.wa-link {
    color: var(--accent-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input, .form-group textarea {
    padding: 0.8rem;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 4px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 2px var(--accent-glow);
}

#honeypot {
    display: none;
}

/* Footer */
footer {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background: var(--nav-bg);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: var(--nav-bg);
        padding: 2rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }
}

/* Utility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.hidden {
    display: none !important;
}