/* ========================================
   KODA E.A.S. - Soluciones Globales
   Main Stylesheet
   ======================================== */

/* CSS Variables */
:root {
    --color-primary: #3266AF;
    --color-primary-dark: #1a4a8a;
    --color-primary-light: #4a7fc7;
    --color-secondary: #999999;
    --color-secondary-light: #b3b3b3;
    --color-white: #ffffff;
    --color-black: #1a1a1a;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-600: #6c757d;

    --gradient-primary: linear-gradient(135deg, #3266AF 0%, #1a4a8a 100%);
    --gradient-hero: linear-gradient(135deg, #4a7fc7 0%, #3266AF 50%, #1a4a8a 100%);

    --font-primary: 'Poppins', sans-serif;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-black);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav__logo-img {
    height: 45px;
    width: auto;
    max-width: 200px;
}

.nav__menu {
    display: flex;
    gap: 2rem;
}

.nav__link {
    font-weight: 500;
    color: var(--color-black);
    position: relative;
    padding: 0.5rem 0;
}

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

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

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

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

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

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    z-index: -1;
}

.hero__bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero__content {
    padding-top: 80px;
}

.hero__text {
    max-width: 700px;
}

.hero__title {
    display: flex;
    flex-direction: column;
    margin-bottom: 0.5rem;
}

.hero__title-line {
    font-size: 5rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
    letter-spacing: -2px;
}

.hero__subtitle {
    font-size: 2.5rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.9);
    margin-top: -0.5rem;
}

.hero__tagline {
    font-size: 1.5rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.hero__description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero__cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--color-white);
    color: var(--color-primary);
    font-weight: 600;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.hero__cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: var(--color-gray-100);
}

.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.7), transparent);
}

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

/* ========================================
   SECTIONS COMMON
   ======================================== */
.section__header {
    text-align: center;
    margin-bottom: 4rem;
}

.section__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
    position: relative;
}

.section__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 1rem auto 0;
    border-radius: 2px;
}

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

.section__title--light::after {
    background: var(--color-white);
}

.section__subtitle {
    font-size: 1.125rem;
    color: var(--color-secondary);
}

.section__subtitle--light {
    color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   EMPRESAS SECTION
   ======================================== */
.empresas {
    padding: 6rem 0;
    background: var(--color-gray-100);
}

.empresas__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.empresa__card {
    background: var(--color-white);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.empresa__card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.empresa__card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.empresa__card:hover::before {
    transform: scaleX(1);
}

.empresa__icon {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.empresa__card:hover .empresa__icon {
    transform: scale(1.1);
}

.empresa__icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.empresa__content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.empresa__name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 0.25rem;
}

.empresa__category {
    font-size: 0.875rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.empresa__description {
    color: var(--color-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex: 1;
}

.empresa__link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.empresa__link svg {
    transition: var(--transition);
}

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

.empresa__link:hover svg {
    transform: translateX(5px);
}

/* ========================================
   NOSOTROS SECTION
   ======================================== */
.nosotros {
    padding: 6rem 0;
}

.nosotros__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.nosotros__text .section__title {
    text-align: left;
}

.nosotros__text .section__title::after {
    margin: 1rem 0 0;
}

.nosotros__description {
    color: var(--color-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.nosotros__stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.stat__label {
    font-size: 0.875rem;
    color: var(--color-secondary);
    margin-top: 0.5rem;
    display: block;
}

.nosotros__logo-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
    background: var(--color-gray-100);
    border-radius: 20px;
}

.nosotros__logo {
    max-width: 300px;
    filter: drop-shadow(0 10px 30px rgba(50, 102, 175, 0.2));
}

/* ========================================
   CONTACTO SECTION
   ======================================== */
.contacto {
    padding: 6rem 0;
    background: var(--gradient-hero);
    position: relative;
}

.contacto::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.contacto__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.contacto__info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3rem;
}

.contacto__item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--color-white);
}

.contacto__icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contacto__text h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contacto__text p {
    opacity: 0.9;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

.btn--whatsapp {
    background: #25D366;
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}

.btn--whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
    height: 60px;
    width: auto;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer__tagline {
    color: var(--color-secondary);
    font-size: 0.95rem;
}

.footer__links h4,
.footer__empresas h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.footer__links ul li,
.footer__empresas ul li {
    margin-bottom: 0.75rem;
}

.footer__links a {
    color: var(--color-secondary);
    transition: var(--transition);
}

.footer__links a:hover {
    color: var(--color-white);
}

.footer__empresas li {
    color: var(--color-secondary);
    font-size: 0.9rem;
}

.footer__bottom {
    padding-top: 2rem;
    text-align: center;
    color: var(--color-secondary);
    font-size: 0.875rem;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    .nosotros__content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .nosotros__image {
        order: -1;
    }

    .nosotros__text .section__title {
        text-align: center;
    }

    .nosotros__text .section__title::after {
        margin: 1rem auto 0;
    }

    .nosotros__stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .nav__menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--color-white);
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
    }

    .nav__menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero__title-line {
        font-size: 3.5rem;
    }

    .hero__subtitle {
        font-size: 1.75rem;
    }

    .hero__tagline {
        font-size: 1.125rem;
        letter-spacing: 2px;
    }

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

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

    .footer__logo {
        margin: 0 auto 1rem;
    }

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

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

    .hero__title-line {
        font-size: 2.75rem;
    }

    .hero__subtitle {
        font-size: 1.5rem;
    }

    .section__title {
        font-size: 2rem;
    }

    .nosotros__stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .empresa__card {
        padding: 1.5rem;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-10deg) scale(0.9);
    }
    to {
        opacity: 1;
        transform: rotate(0) scale(1);
    }
}

/* Scroll Animation Classes */
.scroll-animate {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-animate.animate-up {
    transform: translateY(60px);
}

.scroll-animate.animate-left {
    transform: translateX(-60px);
}

.scroll-animate.animate-right {
    transform: translateX(60px);
}

.scroll-animate.animate-scale {
    transform: scale(0.85);
}

.scroll-animate.animate-rotate {
    transform: rotate(-5deg) scale(0.9);
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1) rotate(0);
}

/* Card specific animations */
.empresa__card {
    opacity: 0;
    transform: translateY(60px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.empresa__card.visible {
    opacity: 1;
    transform: translateY(0);
}

.empresa__card:nth-child(1) { transition-delay: 0.1s; }
.empresa__card:nth-child(2) { transition-delay: 0.15s; }
.empresa__card:nth-child(3) { transition-delay: 0.2s; }
.empresa__card:nth-child(4) { transition-delay: 0.25s; }
.empresa__card:nth-child(5) { transition-delay: 0.3s; }
.empresa__card:nth-child(6) { transition-delay: 0.35s; }
.empresa__card:nth-child(7) { transition-delay: 0.4s; }

/* Icon animation on card visible */
.empresa__card.visible .empresa__icon {
    animation: rotateIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    animation-delay: 0.3s;
}

/* Staggered text animation */
.empresa__card.visible .empresa__name {
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

.empresa__card.visible .empresa__category {
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: 0.5s;
    opacity: 0;
}

.empresa__card.visible .empresa__description {
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}

.empresa__card.visible .empresa__link {
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: 0.7s;
    opacity: 0;
}

/* Section animations */
.section__header {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.section__header.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Nosotros section animations */
.nosotros__text {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.nosotros__text.visible {
    opacity: 1;
    transform: translateX(0);
}

.nosotros__image {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: 0.2s;
}

.nosotros__image.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Stats counter animation */
.stat {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat.visible {
    opacity: 1;
    transform: translateY(0);
}

.stat:nth-child(1) { transition-delay: 0.1s; }
.stat:nth-child(2) { transition-delay: 0.2s; }
.stat:nth-child(3) { transition-delay: 0.3s; }

/* Contact section animations */
.contacto__item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.contacto__item.visible {
    opacity: 1;
    transform: translateY(0);
}

.contacto__item:nth-child(1) { transition-delay: 0.1s; }
.contacto__item:nth-child(2) { transition-delay: 0.2s; }
.contacto__item:nth-child(3) { transition-delay: 0.3s; }

/* Map animation */
.contacto__map {
    opacity: 0;
    transform: scale(0.95);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    margin: 2rem 0;
    max-width: 800px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    border-radius: 16px;
    overflow: hidden;
}

.contacto__map.visible {
    opacity: 1;
    transform: scale(1);
}

.contacto__map iframe {
    display: block;
}