/* ==========================================
   Variables y Reset
   ========================================== */
:root {
    --color-primary: #00D4FF;
    --color-secondary: #0080FF;
    --color-accent: #80E0FF;
    --color-dark: #1a1a2e;
    --color-darker: #0f0f1e;
    --color-text: #2B2B2B;
    --color-text-light: #6B7280;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* ==========================================
   Buttons
   ========================================== */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.4);
}

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

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

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* ==========================================
   Header & Navigation
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-md);
}

.nav__logo .logo-img {
    height: 50px;
    width: auto;
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav__menu a {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav__menu a:not(.btn-primary):hover {
    color: var(--color-primary);
}

.nav__menu a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav__menu a:not(.btn-primary):hover::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(0, 212, 255, 0.05) 0%,
        rgba(0, 128, 255, 0.05) 50%,
        rgba(128, 224, 255, 0.05) 100%);
    z-index: -1;
}

.hero__bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s infinite ease-in-out;
}

.hero__bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 128, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s infinite ease-in-out reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(50px, 50px); }
}

.hero__content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero__cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-light);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 10px); }
}

.hero__logo-bg {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    z-index: 0;
    opacity: 0.08;
    pointer-events: none;
}

.hero__logo-decoration {
    width: 500px;
    height: auto;
    animation: float-logo 20s infinite ease-in-out;
}

@keyframes float-logo {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(5deg);
    }
}

/* ==========================================
   Services Section
   ========================================== */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-light);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transform: scaleX(0);
    transition: var(--transition);
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 212, 255, 0.15);
}

.service-card--featured {
    background: linear-gradient(135deg, var(--color-dark), var(--color-darker));
    color: white;
}

.service-card--featured .service-card__title,
.service-card--featured .service-card__description {
    color: white;
}

.service-card__badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--color-primary);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.service-card__icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: white;
}

.service-card--featured .service-card__icon {
    background: rgba(0, 212, 255, 0.2);
}

.service-card__title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.service-card__description {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ==========================================
   Clients Slider Section
   ========================================== */
.clients-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
    overflow: hidden;
}

.clients-slider {
    margin-top: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    padding: var(--spacing-md) 0;
}

.clients-slider::before,
.clients-slider::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100px;
    z-index: 2;
    pointer-events: none;
}

.clients-slider::before {
    left: 0;
    background: linear-gradient(to right, var(--color-bg), transparent);
}

.clients-slider::after {
    right: 0;
    background: linear-gradient(to left, var(--color-bg), transparent);
}

.clients-track {
    display: flex;
    gap: var(--spacing-lg);
    animation: slide 30s linear infinite;
    width: fit-content;
}

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

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

.client-card {
    min-width: 280px;
    flex-shrink: 0;
}

.client-card a {
    display: block;
    text-decoration: none;
    transition: var(--transition);
}

.client-logo {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 150px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.client-logo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    opacity: 0;
    transition: var(--transition);
}

.client-card a:hover .client-logo {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 212, 255, 0.2);
    border-color: var(--color-primary);
}

.client-card a:hover .client-logo::before {
    opacity: 0.05;
}

.client-logo-img {
    max-width: 180px;
    max-height: 80px;
    width: auto;
    height: auto;
    object-fit: contain;
    position: relative;
    z-index: 1;
    filter: grayscale(100%) brightness(0.5);
    transition: var(--transition);
}

.client-card a:hover .client-logo-img {
    filter: grayscale(0%) brightness(1);
    transform: scale(1.05);
}

/* Special effect for Hallon logo */
.client-card a:hover .hallon-logo {
    filter: invert(1) grayscale(0%) brightness(1);
}

/* ==========================================
   AI Section
   ========================================== */
.ai-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.ai-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.ai-content__text .label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 255, 0.1);
    color: var(--color-primary);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.ai-content__text h2 {
    margin-bottom: var(--spacing-md);
}

.ai-content__text p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.features-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text);
}

.features-list svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.ai-content__visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-card {
    background: var(--color-dark);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 100%;
    animation: floatCard 6s infinite ease-in-out;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.floating-card__header {
    display: flex;
    gap: 6px;
    margin-bottom: var(--spacing-md);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-text-light);
}

.dot:first-child {
    background: #FF5F56;
}

.dot:nth-child(2) {
    background: #FFBD2E;
}

.dot:nth-child(3) {
    background: #27C93F;
}

.floating-card__content {
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    color: #e0e0e0;
}

.code-line {
    margin-bottom: 0.5rem;
}

.code-line.indent {
    padding-left: 2rem;
}

.keyword {
    color: #FF79C6;
}

.function {
    color: #50FA7B;
}

.operator {
    color: var(--color-primary);
}

.comment {
    color: #6272A4;
    font-style: italic;
}

/* ==========================================
   Consulting Section
   ========================================== */
.consulting {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-dark), var(--color-darker));
    color: white;
}

.consulting .section-title,
.consulting .section-subtitle {
    color: white;
}

.consulting__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.consulting-item {
    position: relative;
    padding: var(--spacing-md);
    border-left: 3px solid var(--color-primary);
    transition: var(--transition);
}

.consulting-item:hover {
    transform: translateX(10px);
    border-left-color: var(--color-accent);
}

.consulting-item__number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.consulting-item h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.consulting-item p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* ==========================================
   CTA Section
   ========================================== */
.cta-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg,
        rgba(0, 212, 255, 0.1) 0%,
        rgba(0, 128, 255, 0.1) 100%);
    position: relative;
    overflow: hidden;
}

.cta-logo-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    opacity: 0.05;
    pointer-events: none;
}

.cta__logo-decoration {
    width: 600px;
    height: auto;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================
   Contact Section
   ========================================== */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-light);
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact__info h2 {
    margin-bottom: var(--spacing-md);
}

.contact__info > p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-detail {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-detail svg {
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-detail h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-detail p {
    color: var(--color-text-light);
}

.contact__form {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background: var(--color-dark);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__brand .footer__logo {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer__brand p {
    color: rgba(255, 255, 255, 0.7);
    max-width: 400px;
}

.footer__column h4 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer__column ul {
    list-style: none;
}

.footer__column ul li {
    margin-bottom: 0.75rem;
}

.footer__column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 968px) {
    .hero__title {
        font-size: 2.5rem;
    }

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

    .ai-content,
    .contact__content {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 768px) {
    .nav__menu {
        display: none;
    }

    .nav__toggle {
        display: flex;
    }

    .hero__title {
        font-size: 2rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

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

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

    .floating-card {
        max-width: 100%;
    }

    .client-card {
        min-width: 220px;
    }

    .client-name {
        font-size: 1.5rem;
    }

    .clients-slider::before,
    .clients-slider::after {
        width: 50px;
    }

    .hero__logo-decoration {
        width: 300px;
    }

    .cta__logo-decoration {
        width: 400px;
    }
}

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

    .hero__title {
        font-size: 1.75rem;
    }

    .btn-large {
        padding: 1rem 1.5rem;
        font-size: 1rem;
        width: 100%;
        text-align: center;
    }

    .hero__logo-decoration {
        width: 200px;
        opacity: 0.05;
    }

    .cta__logo-decoration {
        width: 250px;
    }

    .hero__logo-bg {
        right: -10%;
    }
}