/* =========================================================
   PeopleHRA México — Shared design system
   Loaded by index.html, servicios.html, contacto.html
   ========================================================= */

:root {
    --color-ink: #0e1116;
    --color-text: #16181d;
    --color-text-secondary: rgba(22, 24, 29, 0.68);
    --color-text-on-dark: #ffffff;
    --color-text-on-dark-secondary: rgba(255, 255, 255, 0.82);

    --color-primary: #3278b3;
    --color-primary-dark: #24597f;
    --color-primary-tint: #eaf2f9;

    --color-bg: #ffffff;
    --color-bg-alt: #f7f8fa;
    --color-border: #e3e6ea;

    --shadow-md: 0 20px 40px rgba(14, 17, 22, 0.08);
    --shadow-lg: 0 30px 60px rgba(14, 17, 22, 0.12);

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-pill: 999px;

    --container-w: 1180px;

    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-5: 48px;
    --space-6: 64px;
    --space-7: 96px;
    --space-8: 128px;

    --header-h: 84px;
    --header-h-mobile: 68px;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

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

.container {
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 24px;
}

/* -----------------------------------------------------------
   Typography
   ----------------------------------------------------------- */

.eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
}

.eyebrow--on-dark {
    color: #9dc4e6;
}

h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.section-title {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-2);
}

.section-subtitle {
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    max-width: 680px;
    margin-bottom: var(--space-6);
}

.section-head {
    max-width: 760px;
    margin: 0 auto var(--space-6);
    text-align: center;
}

.section-head .section-subtitle {
    margin: 0 auto;
    max-width: 620px;
}

/* -----------------------------------------------------------
   Buttons
   ----------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-pill);
    padding: 17px 36px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    line-height: 1;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

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

.btn-ghost-on-dark {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-ghost-on-dark:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
}

.btn-small {
    padding: 12px 26px;
    font-size: 14px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: inherit;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    border-bottom: 1px solid currentColor;
    padding-bottom: 2px;
    opacity: 0.9;
    transition: opacity 0.2s ease;
}

.text-link:hover {
    opacity: 1;
}

/* -----------------------------------------------------------
   Header / nav
   ----------------------------------------------------------- */

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    height: var(--header-h);
}

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

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo img {
    height: 44px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    list-style: none;
}

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s ease;
}

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

.nav-links a.active {
    color: var(--color-primary);
    font-weight: 600;
}

.nav-cta {
    background: var(--color-primary);
    color: #fff !important;
    padding: 11px 22px;
    border-radius: var(--radius-pill);
    font-weight: 600 !important;
}

.nav-cta:hover {
    background: var(--color-primary-dark);
    color: #fff !important;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
    gap: 5px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

@media (max-width: 900px) {
    .nav-cta {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: var(--header-h);
        right: -100%;
        width: min(320px, 100%);
        height: calc(100vh - var(--header-h));
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-5) var(--space-3);
        gap: var(--space-2);
        transition: right 0.3s ease;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.08);
        z-index: 999;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        width: 100%;
        font-size: 17px;
        padding: 14px 4px;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-links .nav-cta {
        display: inline-flex;
        margin-top: var(--space-2);
    }
}

@media (max-width: 480px) {
    header {
        height: var(--header-h-mobile);
    }

    .nav-links {
        top: var(--header-h-mobile);
        height: calc(100vh - var(--header-h-mobile));
    }
}

/* -----------------------------------------------------------
   Trust / logo strip
   ----------------------------------------------------------- */

.trust-strip {
    padding: var(--space-5) 0;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}

.trust-strip__label {
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.trust-strip__logos {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
    align-items: center;
    justify-content: center;
}

.trust-strip__logos img {
    height: 42px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.55;
    transition: all 0.25s ease;
}

.trust-strip__logos img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* -----------------------------------------------------------
   Cards / grids
   ----------------------------------------------------------- */

.grid {
    display: grid;
    gap: var(--space-4);
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    padding: var(--space-5) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: #fff;
    transition: all 0.3s ease;
}

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

.card-icon {
    width: 44px;
    height: 44px;
    margin-bottom: var(--space-3);
    color: var(--color-primary);
}

.card-icon svg {
    width: 100%;
    height: 100%;
    stroke-width: 1.6;
}

.card h3 {
    font-size: 21px;
    margin-bottom: var(--space-2);
}

.card p {
    font-size: 15.5px;
    line-height: 1.65;
    color: var(--color-text-secondary);
}

.card ul {
    list-style: none;
    margin-top: var(--space-3);
}

.card ul li {
    font-size: 14.5px;
    line-height: 1.7;
    padding-left: 24px;
    position: relative;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
}

.card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.card .service-note {
    margin-top: var(--space-3);
    font-size: 13px;
    line-height: 1.6;
    color: var(--color-text-tertiary, var(--color-text-secondary));
    opacity: 0.85;
    font-style: italic;
}

/* -----------------------------------------------------------
   Section helpers
   ----------------------------------------------------------- */

.section {
    padding: var(--space-8) 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-dark {
    color: #fff;
    background-color: var(--color-ink);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    text-align: center;
    position: relative;
}

.section-dark h2 {
    color: #fff;
}

.section-dark .section-subtitle {
    color: var(--color-text-on-dark-secondary);
    margin-left: auto;
    margin-right: auto;
}

/* -----------------------------------------------------------
   Footer
   ----------------------------------------------------------- */

footer {
    padding: var(--space-6) 0 var(--space-4);
    background: #fff;
    color: var(--color-text);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.footer-section h4 {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-bottom: var(--space-2);
}

.footer-logo {
    height: 36px;
    width: auto;
    margin-bottom: var(--space-2);
}

.footer-section p, .footer-section a {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    text-decoration: none;
    display: block;
    margin-bottom: 8px;
}

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

.footer-section a.social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-section a.social-link svg {
    width: 16px;
    height: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
    font-size: 13px;
    color: var(--color-text-secondary);
}

@media (max-width: 900px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* -----------------------------------------------------------
   Utilities
   ----------------------------------------------------------- */

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

.mt-0 { margin-top: 0; }