/* ========================================
   VARIANTES DE COLOR Y DISEÑO GLOBAL
   ======================================== */

:root {
    /* Colores corporativos - Paleta SIRS Consulting */
    --sirs-gold: #D4AF37;
    --sirs-gold-secondary: #B8860B;
    --sirs-gold-light: #FAD5A5;
    --sirs-black: #1A1A1A;
    --sirs-black-soft: #333333;
    --sirs-beige: #FDF6E3;
    --sirs-cream: #FAFAFA;
    --sirs-gray: #E0E0E0;
    
    /* Colores mapeados para compatibilidad */
    --color-primary: #D4AF37;
    --color-primary-dark: #B8860B;
    --color-primary-light: #FAD5A5;
    
    /* Neutrales — light elegant theme */
    --color-white: #FFFFFF;
    --color-light-gray: #F4F2EB;
    --color-medium-gray: #DDD8CA;
    --color-dark-gray: #64605A;
    --color-text: #1C1A16;
    
    /* Acentos */
    --color-success: #48BB78;
    --color-accent: #D4AF37;
    
    /* Tipografía */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    
    /* Espaciado */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Bordes */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-full: 9999px;
    
    /* Transiciones */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* ========================================
   RESET Y ESTILOS GLOBALES
   ======================================== */

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: #F4F2EB;
    overflow-x: hidden;
    position: relative;
}

#tech-bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

main,
.footer {
    position: relative;
    z-index: 1;
}

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

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

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

/* ========================================
   CONTENEDOR Y LAYOUT
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
}

main {
    flex: 1;
    padding-top: 85px;
}

/* ========================================
   HEADER Y NAVEGACIÓN
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.28);
    z-index: 9999;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
    width: 100%;
}

.navbar {
    padding: var(--spacing-md) 0;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--sirs-black);
    background: linear-gradient(135deg, var(--sirs-gold) 0%, var(--sirs-gold-secondary) 100%);
    padding: 10px 16px;
    border-radius: var(--border-radius);
    border: 1px solid var(--sirs-gold-secondary);
    box-shadow: 0 8px 18px rgba(212, 175, 55, 0.28);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.logo:hover,
.logo:focus {
    color: var(--sirs-black);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(212, 175, 55, 0.35);
    filter: brightness(1.04);
}

.logo-icon {
    font-size: 24px;
    color: var(--sirs-black);
    letter-spacing: 2px;
}

.logo-text {
    color: var(--sirs-black);
    font-size: 18px;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition-fast);
    position: relative;
    text-decoration: none;
}

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

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link:focus::after {
    width: 100%;
}

.nav-link.contact-btn {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 8px 20px;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.nav-link.contact-btn::after {
    display: none;
}

.nav-link.contact-btn:hover,
.nav-link.contact-btn:focus {
    background-color: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(145deg, #FFFDF5 0%, #F4F2EB 60%, #EDE9DC 100%);
    padding: var(--spacing-2xl) var(--spacing-md);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    max-width: 1200px;
    width: 100%;
}

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

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-primary);
}

.hero-tagline {
    font-size: var(--font-size-lg);
    color: var(--color-dark-gray);
    line-height: 1.5;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.placeholder-circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-medium-gray) 100%);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    font-size: 120px;
    color: var(--color-primary);
}

.hero-logo-image {
    width: 110%;
    height: 110%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

/* ========================================
   BOTONES
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--sirs-black);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-primary-dark);
    color: var(--sirs-black);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary-dark);
}

/* ========================================
   SECCIONES
   ======================================== */

section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 2px;
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.6);
}

/* ========================================
   SERVICES / CÓMO TE PODEMOS AYUDAR
   ======================================== */

.services {
    background: rgba(244, 242, 235, 0.95);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.service-card {
    background: #FFFFFF;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

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

.service-card:hover {
    transform: translateY(-7px);
    border-color: rgba(212, 175, 55, 0.55);
    box-shadow: 0 0 22px rgba(212, 175, 55, 0.14), 0 18px 38px rgba(0, 0, 0, 0.09);
}

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

.service-icon {
    font-size: 52px;
    margin-bottom: var(--spacing-md);
    color: var(--sirs-gold-secondary);
    display: block;
    line-height: 1;
    filter: drop-shadow(0 2px 6px rgba(184, 134, 11, 0.25));
}

.service-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--sirs-gold);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.3px;
}

.service-desc {
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-dark-gray);
}

/* ========================================
   ABOUT SECTION
   ======================================== */

.about {
    background: rgba(255, 255, 255, 0.92);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--color-medium-gray);
}

.highlight-item {
    text-align: center;
    padding: var(--spacing-md);
    background: #FFFFFF;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
}

.highlight-item:hover {
    transform: translateY(-4px);
    border-color: rgba(212, 175, 55, 0.5);
    box-shadow: 0 0 16px rgba(212, 175, 55, 0.12), 0 12px 28px rgba(0, 0, 0, 0.08);
}

.highlight-icon {
    display: block;
    font-size: 32px;
    color: var(--color-success);
    margin-bottom: var(--spacing-sm);
}

.highlight-item h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--color-primary);
}

.highlight-item p {
    font-size: 14px;
    color: var(--color-dark-gray);
}

/* ========================================
   EXPERIENCE SECTION
   ======================================== */

.experience {
    background: rgba(244, 242, 235, 0.95);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-primary);
}

.timeline-item {
    margin-bottom: var(--spacing-2xl);
    position: relative;
    padding-left: var(--spacing-2xl);
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 4px;
    width: 64px;
    height: 64px;
    background: #FFFFFF;
    border: 3px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    box-shadow: 0 0 14px rgba(212, 175, 55, 0.22);
}

.timeline-item:hover .timeline-marker {
    background-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: scale(1.1);
}

.timeline-content {
    background: #FFFFFF;
    border: 1px solid rgba(212, 175, 55, 0.18);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
}

.timeline-item:hover .timeline-content {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.timeline-date {
    font-size: 13px;
    color: var(--color-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.timeline-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.achievements {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.achievements li {
    display: flex;
    gap: 12px;
    margin-bottom: 10px;
    font-size: 15px;
    line-height: 1.5;
    color: var(--color-dark-gray);
}

.checkmark {
    color: var(--color-success);
    font-weight: 700;
    flex-shrink: 0;
}

.tech-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding: 4px 12px;
    border-radius: var(--border-radius-full);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ========================================
   PROJECTS SECTION
   ======================================== */

.projects {
    background: rgba(255, 255, 255, 0.92);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: #FFFFFF;
    border: 1px solid rgba(212, 175, 55, 0.22);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.07);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(212, 175, 55, 0.55);
    box-shadow: 0 0 24px rgba(212, 175, 55, 0.14), 0 20px 40px rgba(0, 0, 0, 0.1);
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-medium-gray) 100%);
    position: relative;
    overflow: hidden;
}

.project-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.88);
    color: var(--sirs-black);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.project-image::after {
    content: '📸';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
}

.project-image--banking {
    background: linear-gradient(135deg, #dbeafe 0%, #93c5fd 100%);
}

.project-image--banking::after {
    content: '🏦';
}

.project-image--pos {
    background: linear-gradient(135deg, #d1fae5 0%, #6ee7b7 100%);
}

.project-image--pos::after {
    content: '🛒';
}

.project-image--construction {
    background: linear-gradient(135deg, #ccfbf1 0%, #5eead4 100%);
}

.project-image--construction::after {
    content: '🏗';
}

.project-image--crm {
    background: linear-gradient(135deg, #ffedd5 0%, #fdba74 100%);
}

.project-image--crm::after {
    content: '📈';
}

.project-image--rpa {
    background: linear-gradient(135deg, #dbeafe 0%, #67e8f9 100%);
}

.project-image--rpa::after {
    content: '🤖';
}

.project-image--bi {
    background: linear-gradient(135deg, #e0e7ff 0%, #c4b5fd 100%);
}

.project-image--bi::after {
    content: '📊';
}

.project-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.project-description {
    font-size: 15px;
    color: var(--color-dark-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.project-tech {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
}

.project-link {
    font-size: 14px;
    font-weight: 700;
    color: var(--sirs-black);
    background: linear-gradient(135deg, var(--sirs-gold) 0%, var(--sirs-gold-secondary) 100%);
    transition: all var(--transition-fast);
    flex: 1;
    text-align: center;
    padding: 12px 0;
    border-radius: var(--border-radius);
    border: 1px solid var(--sirs-gold-secondary);
    box-shadow: 0 8px 18px rgba(212, 175, 55, 0.28);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.project-link:hover {
    color: var(--sirs-black);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(212, 175, 55, 0.35);
    filter: brightness(1.04);
}

.project-link.project-link-secondary {
    color: #FFFFFF;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-color: #1d4ed8;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.28);
}

.project-link.project-link-secondary:hover {
    color: #FFFFFF;
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.35);
}

.project-link.project-link-demo {
    color: #FFFFFF;
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
    border-color: #15803d;
    box-shadow: 0 8px 18px rgba(22, 163, 74, 0.28);
}

.project-link.project-link-demo:hover {
    color: #FFFFFF;
    box-shadow: 0 12px 24px rgba(22, 163, 74, 0.35);
}

/* ========================================
   SKILLS SECTION
   ======================================== */

.skills {
    background: rgba(255, 255, 255, 0.92);
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-2xl);
    font-style: italic;
}

.skills-container {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    perspective: 1000px;
}

.skills-container .skill-card:nth-child(4) {
    grid-column: 1 / -1;
    max-width: 50%;
    margin: 0 auto;
}

.skill-card {
    position: relative;
    width: 100%;
    height: 280px;
    cursor: pointer;
    transform-style: preserve-3d;
    transition: transform 0.6s;
    will-change: transform;
}

.skill-card:hover {
    transform: rotateY(180deg);
}

.skill-card-front,
.skill-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
}

.skill-card-front {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--color-primary);
}

.skill-card-front::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.1), transparent);
    border-radius: var(--border-radius-lg);
    pointer-events: none;
}

.skill-icon-large {
    font-size: 64px;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.skill-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.5px;
}

.skill-card-back {
    background: linear-gradient(135deg, #FFFFFF 0%, #FAFAF4 100%);
    color: var(--color-text);
    transform: rotateY(180deg);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    border: 2px solid var(--color-primary);
    align-items: flex-start;
    justify-content: flex-start;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.skill-back-content {
    width: 100%;
}

.skill-back-content h4 {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    font-weight: 700;
    margin: 0 0 var(--spacing-md) 0;
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: var(--spacing-sm);
}

.skill-back-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.skill-back-content li {
    font-size: 13px;
    line-height: 1.8;
    color: var(--color-dark-gray);
    padding-left: var(--spacing-md);
    position: relative;
    margin-bottom: 8px;
}

.skill-back-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* ========================================
   EDUCATION SECTION
   ======================================== */

.education {
    background: rgba(244, 242, 235, 0.95);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.education-item {
    background: #FFFFFF;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
    transition: all var(--transition-base);
    display: flex;
    gap: var(--spacing-md);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.team-photo {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-medium-gray) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--sirs-black);
    font-size: 28px;
    border: 2px solid var(--color-primary);
}

.team-photo::before {
    content: '👤';
}

.team-info-blank {
    min-height: 70px;
    border-radius: var(--border-radius);
    border: 1px dashed var(--color-medium-gray);
    background-color: var(--color-light-gray);
}

.education-item:hover {
    box-shadow: 0 0 18px rgba(212, 175, 55, 0.14), 0 14px 30px rgba(0, 0, 0, 0.09);
    border-color: rgba(212, 175, 55, 0.48);
    transform: translateY(-4px);
}

.education-icon {
    font-size: 36px;
    flex-shrink: 0;
}

.education-content {
    flex: 1;
}

.education-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}

.education-institution {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 4px;
}

.education-year {
    font-size: 13px;
    color: var(--color-dark-gray);
}

.education-description {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-dark-gray);
    margin-top: 8px;
}

/* ========================================
   CONTACT SECTION
   ======================================== */

.contact {
    background: rgba(255, 255, 255, 0.92);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

.contact-wrapper.company-contact {
    grid-template-columns: 1fr;
    max-width: 720px;
}

.contact-description {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-lg);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: #F4F2EB;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.contact-method:hover {
    background-color: var(--sirs-gold-light);
    color: var(--sirs-black);
    transform: translateX(4px);
}

.contact-method:hover .contact-icon,
.contact-method:hover .contact-text {
    color: var(--sirs-black);
}

.contact-icon {
    font-size: 24px;
    color: var(--color-primary);
}

.contact-text {
    color: var(--color-text);
    font-weight: 500;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   CONTACT FORM
   ======================================== */

.contact-form {
    background: #F4F2EB;
    border: 1px solid rgba(212, 175, 55, 0.2);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--color-text);
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    padding: 12px;
    background-color: #FFFFFF;
    border: 1px solid rgba(212, 175, 55, 0.25);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: 14px;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

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

.contact-form .btn {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: #1C1A14;
    color: #9C9488;
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    border-top: 3px solid var(--sirs-gold);
}

.footer-text {
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-credits {
    font-size: 12px;
    opacity: 0.8;
}

/* ========================================
   PLACEHOLDERS Y UTILIDADES
   ======================================== */

.placeholder-image {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-medium-gray) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 48px;
}

/* ========================================
   MEDIA QUERIES - RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    :root {
        --font-size-3xl: 32px;
        --font-size-2xl: 24px;
        --spacing-2xl: 32px;
        --spacing-xl: 24px;
    }

    .navbar-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }

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

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

    .placeholder-circle {
        width: 200px;
        height: 200px;
    }

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

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        padding-left: var(--spacing-lg);
    }

    .timeline-marker {
        left: -19px;
        width: 48px;
        height: 48px;
    }

    .skills-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skills-container .skill-card:nth-child(4) {
        grid-column: 1 / -1;
        max-width: 100%;
    }

    .skill-card {
        height: 250px;
        max-width: 100%;
    }

    .skill-icon-large {
        font-size: 52px;
    }

    .skill-title {
        font-size: var(--font-size-xl);
    }

    .skill-back-content li {
        font-size: 12px;
        line-height: 1.6;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-3xl: 24px;
        --font-size-2xl: 18px;
        --font-size-xl: 18px;
        --spacing-2xl: 24px;
        --spacing-lg: 16px;
        --spacing-md: 16px;
    }

    .logo-text {
        font-size: 16px;
    }

    .nav-links {
        gap: var(--spacing-sm);
    }

    .nav-link {
        font-size: 12px;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .nav-link.contact-btn {
        padding: 6px 14px;
        font-size: 12px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .timeline-marker {
        left: -15px;
        width: 40px;
        height: 40px;
    }

    .timeline-content {
        padding: var(--spacing-md);
    }

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

/* ========================================
   ANIMACIONES
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

section {
    animation: fadeInUp 0.6s ease-out;
}

/* ========================================
   ACCESIBILIDAD
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* Light elegant theme — gold accents on warm ivory */