/* ========================================
   Krom-Soft - Landing Page Styles v2.0
   Nueva identidad: moderna, tecnológica,
   limpia y corporativa
   ======================================== */

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    padding: 12px 24px;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 9999;
    font-weight: 600;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* Focus visible for keyboard navigation */
a:focus-visible,
button:focus-visible,
.nav-toggle:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

:root {
    --color-primary: #0A2540;
    --color-primary-light: #123a5e;
    --color-accent: #00D4B2;
    --color-accent-dark: #00bfa0;
    --color-secondary: #1D8A99;
    --color-amber: #FFB000;
    --color-bg: #F8FAFC;
    --color-bg-alt: #EDF2F7;
    --color-white: #FFFFFF;
    --color-text: #0A2540;
    --color-text-muted: #5A6B7B;
    --color-text-light: #8B9AAB;
    --color-border: #E2E8F0;
    --color-success: #22c55e;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 2px rgba(10, 37, 64, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(10, 37, 64, 0.07), 0 2px 4px -1px rgba(10, 37, 64, 0.03);
    --shadow-lg: 0 10px 25px -5px rgba(10, 37, 64, 0.1), 0 8px 10px -6px rgba(10, 37, 64, 0.04);
    --shadow-glow: 0 0 60px rgba(0, 212, 178, 0.2);
    --transition: all 0.25s 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-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-primary { color: var(--color-accent); }
.text-accent { color: var(--color-amber); }
.text-secondary { color: var(--color-secondary); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-primary);
    box-shadow: 0 4px 14px rgba(0, 212, 178, 0.35);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(0, 212, 178, 0.45);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-dark);
    transform: translateY(-2px);
}

.btn-outline-light {
    background: transparent;
    color: var(--color-white);
    border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-white);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1rem;
}

/* Section headers */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 212, 178, 0.1);
    color: var(--color-accent-dark);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    border: 1px solid rgba(0, 212, 178, 0.2);
}

.section-tag--light {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-accent);
    border-color: rgba(255, 255, 255, 0.2);
}

.section-title {
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 18px;
    color: var(--color-primary);
}

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

.section-description {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

/* ========================================
   Navbar
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    border-bottom-color: var(--color-border);
    padding: 12px 0;
}

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

.nav-logo img {
    height: 46px;
    width: auto;
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-menu li {
    margin-left: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-primary);
    transition: var(--transition);
    position: relative;
}

.nav-link:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition);
}

.nav-link:not(.nav-cta):hover {
    color: var(--color-accent-dark);
}

.nav-link:not(.nav-cta):hover::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 22px;
    background: var(--color-accent);
    color: var(--color-primary);
    border-radius: 50px;
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(0, 212, 178, 0.35);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ========================================
   Hero
   ======================================== */
.hero {
    position: relative;
    min-height: auto;
    max-height: 748px;
    display: flex;
    align-items: center;
    padding: 170px 0 30px;
    background: var(--color-bg);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(0, 212, 178, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 176, 0, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.hero-container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.hero-content {
    width: 50%;
    padding-right: 60px;
}

.hero-visual {
    width: 50%;
    padding-left: 60px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 360px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: rgba(0, 212, 178, 0.1);
    border: 1px solid rgba(0, 212, 178, 0.2);
    border-radius: 50px;
    color: var(--color-accent-dark);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    color: var(--color-primary);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    margin-bottom: 0px;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    margin-right: 16px;
    margin-bottom: 12px;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.stat {
    margin-right: 48px;
    margin-bottom: 12px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent-dark);
}

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

/* Hero isotype */
.hero-isotype {
    position: relative;
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-isotype img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: relative;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
}

.hero-isotype .glow {
    position: absolute;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(0, 212, 178, 0.25) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(30px);
    z-index: 1;
    animation: pulse 4s ease-in-out infinite;
}

.floating-card {
    position: absolute;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    z-index: 3;
    animation: float 5s ease-in-out infinite;
}

.floating-card i {
    color: var(--color-accent-dark);
    font-size: 1.1rem;
}

.card-1 { top: 10%; right: 0; animation-delay: 0s; }
.card-2 { bottom: 20%; left: 0; animation-delay: 1.5s; }
.card-3 { bottom: 5%; right: 10%; animation-delay: 3s; }

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

/* ========================================
   Services
   ======================================== */
.services {
    padding: 110px 0;
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 38px 30px;
    margin: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
}

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

.service-card.featured {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.service-card.featured p {
    color: rgba(255, 255, 255, 0.75);
}

.service-card.featured .service-icon {
    background: rgba(0, 212, 178, 0.15);
    color: var(--color-accent);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 212, 178, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--color-accent-dark);
    margin-bottom: 22px;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   Development
   ======================================== */
.development {
    padding: 110px 0;
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.development::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 178, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.development-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    position: relative;
    z-index: 1;
}

.development-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 38px 28px;
    margin: 12px;
    transition: var(--transition);
}

.development-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
    transform: translateY(-6px);
}

.development-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 212, 178, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--color-accent);
    margin-bottom: 22px;
}

.development-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
}

.development-card p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   QuickBill
   ======================================== */
.quickbill {
    padding: 110px 0;
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.quickbill::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(0, 212, 178, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.quickbill-grid {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.quickbill-content {
    width: 55%;
    padding-right: 50px;
}

.quickbill-visual {
    width: 45%;
    padding-left: 50px;
}

.quickbill-subtitle {
    font-size: 1.25rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 18px;
}

.quickbill-description {
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 28px;
    font-size: 1.05rem;
}

.quickbill-features {
    display: grid;
    gap: 12px;
    margin-bottom: 36px;
}

.quickbill-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.98rem;
}

.quickbill-features li i {
    color: var(--color-accent);
    font-size: 1.1rem;
}

.quickbill-buttons {
    display: flex;
    flex-wrap: wrap;
}

.quickbill-buttons .btn {
    margin-right: 16px;
    margin-bottom: 12px;
}

.quickbill-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    max-width: 440px;
}

.quickbill-card-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    margin: 8px;
    text-align: center;
    transition: var(--transition);
}

.quickbill-card-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(0, 212, 178, 0.4);
    transform: translateY(-4px);
}

.quickbill-card-item i {
    font-size: 2rem;
    color: var(--color-accent);
    margin-bottom: 14px;
    display: block;
}

.quickbill-card-item span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-white);
}

/* ========================================
   Process
   ======================================== */
.process {
    padding: 110px 0;
    background: var(--color-bg);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.process-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    margin: 12px;
    position: relative;
    transition: var(--transition);
}

.process-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
}

.process-number {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 3rem;
    font-weight: 800;
    color: rgba(0, 212, 178, 0.12);
    line-height: 1;
}

.process-icon {
    width: 52px;
    height: 52px;
    background: rgba(0, 212, 178, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--color-accent-dark);
    margin-bottom: 24px;
}

.process-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.process-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ========================================
   Tech
   ======================================== */
.tech {
    padding: 110px 0;
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.tech-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 34px 16px;
    text-align: center;
    transition: var(--transition);
}

.tech-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    background: rgba(0, 212, 178, 0.08);
}

.tech-item i {
    font-size: 2.2rem;
    color: var(--color-accent);
    margin-bottom: 14px;
    display: block;
}

.tech-item span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-white);
}

/* ========================================
   CTA
   ======================================== */
.cta {
    padding: 110px 0;
    background: var(--color-bg);
}

.cta-box {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 64px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    box-shadow: var(--shadow-lg);
}

.cta-content {
    width: 55%;
    padding-right: 60px;
}

.cta-contact {
    width: 45%;
    padding-left: 60px;
}

.cta-content p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    margin-right: 16px;
    margin-bottom: 12px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-item i {
    width: 48px;
    height: 48px;
    background: rgba(0, 212, 178, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--color-accent-dark);
    flex-shrink: 0;
}

.contact-item > div {
    display: flex;
    flex-direction: column;
}

.contact-item span:first-child {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.contact-item a,
.contact-item span:last-child {
    font-weight: 600;
    color: var(--color-primary);
}

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

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-primary);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    margin-bottom: 60px;
}

.footer-grid > div {
    padding-right: 40px;
}

.footer-logo {
    height: 52px;
    width: auto;
    margin-bottom: 20px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin-bottom: 24px;
    max-width: 320px;
}

.footer-social {
    display: flex;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-right: 12px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
    transform: translateY(-3px);
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--color-white);
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    flex-wrap: wrap;
    gap: 12px;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1100px) {
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-content,
    .hero-visual,
    .quickbill-content,
    .quickbill-visual,
    .cta-content,
    .cta-contact {
        width: 100%;
        padding: 0;
    }

    .hero-visual {
        order: -1;
        margin-bottom: 50px;
    }

    .hero-isotype {
        width: 260px;
        height: 260px;
    }

    .quickbill-visual {
        order: -1;
        margin-bottom: 50px;
    }

    .cta-content {
        margin-bottom: 50px;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 0;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-150%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-menu li {
        margin-left: 0;
        margin-bottom: 16px;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        padding: 120px 0 80px;
    }

    .hero-buttons,
    .quickbill-buttons,
    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat {
        margin-right: 24px;
    }

    .quickbill-card,
    .services-grid,
    .process-grid,
    .development-grid {
        grid-template-columns: 1fr;
    }

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

    .cta-box {
        padding: 40px 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand p {
        max-width: 100%;
    }

    .footer-social {
        justify-content: center;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 18px;
    }

    .hero-isotype {
        width: 220px;
        height: 220px;
    }

    .floating-card {
        padding: 10px 14px;
        font-size: 0.8rem;
    }

    .card-1 { right: -10px; }
    .card-2 { left: -10px; }
}


/* ========================================
   About / ¿Qué significa KROM-SOFT?
   ======================================== */
.about {
    padding: 110px 0;
    background: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.about-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 38px 28px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
}

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

.about-letter {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    color: var(--color-accent-dark);
    margin-bottom: 12px;
}

.about-word {
    display: block;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.about-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.about-fullname {
    text-align: center;
    margin-top: 48px;
}

.about-fullname p {
    font-size: 1.25rem;
    color: var(--color-primary);
    font-weight: 700;
}

.about-fullname p span {
    color: var(--color-text-muted);
    font-weight: 400;
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-letter {
        font-size: 3rem;
    }
}