/* ===== CSS Variables ===== */
:root {
    /* Colors - Rojo corporativo Infomed */
    --color-primary: #c41e3a;
    --color-primary-dark: #9a1830;
    --color-primary-light: #fce8ec;
    --color-secondary: #e63946;
    --color-accent: #ff4d5a;
    
    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ===== Utilities ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section__subtitle {
    display: inline-block;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.section__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

.section__description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

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

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

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

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

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--color-white);
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

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

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.logo-img {
    height: 45px;
    width: auto;
}

.nav__list {
    display: flex;
    gap: var(--spacing-xl);
}

.nav__link {
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
    position: relative;
}

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

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

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

.nav__toggle,
.nav__close {
    display: none;
}

/* ===== Hero ===== */
.hero {
    padding-top: calc(var(--header-height) + var(--spacing-3xl));
    padding-bottom: var(--spacing-4xl);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-white) 100%);
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.hero__title-accent {
    color: var(--color-primary);
}

.hero__description {
    font-size: var(--font-size-xl);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

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

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

.hero__image-placeholder {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.hero__image-placeholder svg {
    width: 40%;
    height: 40%;
    opacity: 0.9;
}

/* ===== Services ===== */
.services {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-white);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.service__card {
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.service__card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.service__icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.service__icon svg {
    width: 30px;
    height: 30px;
    color: var(--color-primary);
}

.service__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.service__description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.7;
}

/* ===== About ===== */
.about {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-gray-50);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about__text .section__subtitle,
.about__text .section__title {
    text-align: left;
}

.about__description {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
}

.about__stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-gray-200);
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.about__image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.about__image-placeholder svg {
    width: 30%;
    height: 30%;
    opacity: 0.9;
}

/* ===== Contact ===== */
.contact {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-white);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact__item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.contact__icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact__icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.contact__text h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.contact__text p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.6;
}

.contact__map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 300px;
    background-color: var(--color-gray-100);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
}

.contact__map-placeholder svg {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
}

.contact__map-placeholder p {
    font-size: var(--font-size-sm);
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-3xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--color-gray-700);
}

.footer__logo {
    display: inline-block;
}

.footer__logo-img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer__description {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    max-width: 300px;
}

.footer__social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.social__link {
    width: 40px;
    height: 40px;
    background-color: var(--color-gray-800);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

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

.social__link svg {
    width: 20px;
    height: 20px;
    color: var(--color-white);
}

.footer__links h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__links a {
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.footer__bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: var(--font-size-sm);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero__title {
        font-size: var(--font-size-4xl);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    /* Mobile Navigation */
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-white);
        box-shadow: var(--shadow-xl);
        padding: var(--spacing-4xl) var(--spacing-xl);
        transition: right var(--transition-base);
        z-index: 1001;
    }
    
    .nav__menu.show-menu {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
    
    .nav__link {
        font-size: var(--font-size-lg);
    }
    
    .nav__close {
        display: block;
        position: absolute;
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        font-size: var(--font-size-2xl);
        cursor: pointer;
        color: var(--color-gray-600);
    }
    
    .nav__toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        z-index: 1000;
    }
    
    .nav__toggle span {
        width: 25px;
        height: 3px;
        background-color: var(--color-gray-700);
        border-radius: var(--radius-full);
        transition: all var(--transition-fast);
    }
    
    /* Hero Mobile */
    .hero {
        padding-top: calc(var(--header-height) + var(--spacing-2xl));
        padding-bottom: var(--spacing-3xl);
    }
    
    .hero__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .hero__description {
        font-size: var(--font-size-base);
    }
    
    .hero__image {
        order: -1;
    }
    
    .hero__image-placeholder {
        max-width: 280px;
    }
    
    /* Services Mobile */
    .services__grid {
        grid-template-columns: 1fr;
    }
    
    /* About Mobile */
    .about__content {
        grid-template-columns: 1fr;
    }
    
    .about__stats {
        justify-content: space-between;
    }
    
    .about__image {
        order: -1;
    }
    
    /* Contact Mobile */
    .contact__grid {
        grid-template-columns: 1fr;
    }
    
    /* Footer Mobile */
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .section__title {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero__buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .about__stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .stat {
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
        text-align: left;
    }
}

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

.hero__content,
.hero__image,
.service__card,
.about__text,
.about__image,
.contact__info,
.contact__map {
    animation: fadeInUp 0.6s ease forwards;
}

.hero__image {
    animation-delay: 0.2s;
}

.service__card:nth-child(2) { animation-delay: 0.1s; }
.service__card:nth-child(3) { animation-delay: 0.2s; }
.service__card:nth-child(4) { animation-delay: 0.3s; }