:root {
    --color-primary: #1a2332;
    --color-secondary: #2c3e50;
    --color-accent: #3498db;
    --color-accent-dark: #2980b9;
    --color-text: #2c3e50;
    --color-text-light: #7f8c8d;
    --color-background: #f8f9fa;
    --color-white: #ffffff;
    --color-border: #e0e4e8;
    --color-success: #27ae60;
    --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --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: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    overflow-x: hidden;
}

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

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-symbol {
    color: var(--color-accent);
    font-size: 1.3rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

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

.cta-button {
    background: var(--color-accent);
    color: var(--color-white);
    padding: 0.7rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.05) 0%, rgba(41, 128, 185, 0.1) 100%);
    clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--color-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 700px;
}

.hero-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    padding: 0.5rem 1rem;
    background: rgba(52, 152, 219, 0.1);
    border-radius: 4px;
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--color-text);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.button-primary {
    background: var(--color-accent);
    color: var(--color-white);
    padding: 1rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid var(--color-accent);
}

.button-primary:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.button-secondary {
    background: transparent;
    color: var(--color-accent);
    padding: 1rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid var(--color-accent);
}

.button-secondary:hover {
    background: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-2px);
}

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

/* Services Preview */
.services-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
    animation: fadeInUp 0.8s ease-out 1s both;
}

.service-card-mini {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    cursor: pointer;
}

.service-card-mini:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.service-card-mini h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.service-card-mini p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* Section Styles */
section {
    padding: 6rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* About Section */
#quienes-somos {
    background: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text);
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-features {
    display: grid;
    gap: 2rem;
}

.feature-box {
    background: var(--color-background);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.feature-box h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-list {
    list-style: none;
    display: grid;
    gap: 0.8rem;
}

.feature-list li {
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text);
}

.feature-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-item {
    text-align: center;
    padding: 1.5rem;
}

.value-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.value-item h4 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

/* Services Section */
.services-grid {
    display: grid;
    gap: 3rem;
}

.service-card {
    background: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.service-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: 2.5rem;
}

.service-header h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.service-header p {
    font-size: 1rem;
    opacity: 0.9;
}

.service-body {
    padding: 2.5rem;
}

.service-section {
    margin-bottom: 2rem;
}

.service-section:last-child {
    margin-bottom: 0;
}

.service-section h4 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.service-section h4::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--color-accent);
    border-radius: 2px;
}

.service-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    list-style: none;
}

.service-list li {
    padding: 0.8rem 1rem;
    background: var(--color-background);
    border-radius: 6px;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transition: var(--transition);
}

.service-list li:hover {
    background: var(--color-accent);
    color: var(--color-white);
    transform: translateX(4px);
}

.service-list li::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: bold;
    flex-shrink: 0;
}

.service-list li:hover::before {
    color: var(--color-white);
}

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

.deliverable-item {
    background: var(--color-background);
    padding: 1rem 1.5rem;
    border-radius: 6px;
    color: var(--color-text);
    font-weight: 500;
    border-left: 3px solid var(--color-success);
}

/* Methodology Section */
#metodologia {
    background: var(--color-white);
}

.methodology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.methodology-step {
    background: var(--color-background);
    padding: 2rem;
    border-radius: 8px;
    position: relative;
    transition: var(--transition);
    border: 2px solid transparent;
}

.methodology-step:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 2rem;
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.methodology-step h3 {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 0.8rem;
    margin-top: 0.5rem;
}

.methodology-step p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Sectors Section */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.sector-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--color-border);
}

.sector-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.sector-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.sector-card h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
    font-weight: 600;
}

/* Experience Section */
#experiencia {
    background: var(--color-white);
}

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

.experience-card {
    background: var(--color-background);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.experience-card h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.experience-card p {
    color: var(--color-text);
    line-height: 1.7;
}

/* Standards Section */
.standards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.standard-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    border: 2px solid var(--color-border);
    transition: var(--transition);
}

.standard-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}

.standard-card h3 {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--color-accent);
    font-weight: 600;
}

/* Contact Section */
#contacto {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
}

#contacto .section-label {
    color: var(--color-accent);
}

#contacto .section-title {
    color: var(--color-white);
}

#contacto .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 3rem;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.2);
}

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

.form-group select option {
    background: var(--color-primary);
    color: var(--color-white);
}

.submit-button {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.submit-button:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.info-box {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.info-box h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
}

.info-text {
    flex: 1;
}

.info-text strong {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 600;
}

.info-text a {
    color: var(--color-white);
    text-decoration: none;
    transition: var(--transition);
}

.info-text a:hover {
    color: var(--color-accent);
}

/* Spinner Styles */
.spinner {
    display: none;
    justify-content: center;
    align-items: center;
    margin-top: 1rem;
}

/* Footer */
footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 3rem 2rem 2rem;
    text-align: center;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.footer-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    margin: 2rem 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.8rem;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .methodology-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: var(--color-white);
        width: 100%;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        gap: 1.5rem;
        align-items: flex-start;
    }

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

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

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

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero-title {
        font-size: 2.2rem;
    }

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

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

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

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .button-primary,
    .button-secondary {
        width: 100%;
        justify-content: center;
    }

    section {
        padding: 4rem 1.5rem;
    }

    .service-header {
        padding: 2rem;
    }

    .service-body {
        padding: 2rem;
    }

    .service-list,
    .deliverables-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }

    .hero-container {
        padding: 3rem 1rem;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .contact-form {
        padding: 2rem;
    }

    .values-grid,
    .sectors-grid,
    .standards-grid {
        grid-template-columns: 1fr;
    }
}

/* Smooth Scrolling Enhancement */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Form alert */
.form-submit-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.form-alert {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    color: #155724;
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    padding: 8px 12px;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    animation: fadeInUp 0.25s ease-out;
}

.form-alert-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.form-alert-text {
    display: inline-block;
    line-height: 1.1;
}

/* Error modifier */
.form-alert--error {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}