/* ================================
   VARIABLES DE TEMA
================================ */

:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --surface-soft: #eef3f8;
    --border: rgba(15, 23, 42, .14);
    --text: #0f172a;
    --muted: #64748b;
    --primary: #1da1f2;
    --primary-dark: #0b7ed6;
    --radius: 20px;
    --shadow: 0 18px 40px rgba(15, 23, 42, .12);
}

html[data-theme="dark"] {
    --bg: #07121f;
    --surface: #0f1b2d;
    --surface-soft: #15243a;
    --border: rgba(255, 255, 255, .12);
    --text: #f8fafc;
    --muted: #cbd5e1;
    --primary: #1da1f2;
    --primary-dark: #0b7ed6;
    --shadow: 0 18px 40px rgba(0, 0, 0, .35);
}

/* ================================
   RESET
================================ */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

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

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

.container {
    width: min(1180px, calc(100% - 40px));
    margin: auto;
}

/* ================================
   HEADER
================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.header-container {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
}

.brand-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    object-fit: cover;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 14px;
    border-radius: 999px;
    font-weight: 700;
    color: var(--muted);
}

.nav-link:hover,
.nav-link.is-active {
    background: var(--surface-soft);
    color: var(--text);
}

/* ================================
   BOTON MENU MOVIL
================================ */

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    cursor: pointer;
}

/* ================================
   BOTON LUNA / SOL
================================ */

.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    display: grid;
    place-items: center;
    cursor: pointer;
}

.theme-toggle:hover {
    background: var(--surface);
}

.theme-toggle .icon-moon {
    display: none;
}

html[data-theme="dark"] .icon-sun {
    display: none;
}

html[data-theme="dark"] .icon-moon {
    display: inline;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 800;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    color: #ffffff;
}

.btn-outline {
    border-color: var(--border);
    color: var(--text);
}

.btn-outline:hover {
    background: var(--surface-soft);
}

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

.hero-section {
    padding: 90px 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 40px;
    align-items: center;
}

.eyebrow {
    display: inline-flex;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: var(--surface-soft);
    font-weight: 800;
    color: var(--primary);
}

.hero-content h1 {
    margin: 18px 0;
    font-size: clamp(2.4rem, 5vw, 4.5rem);
}

.hero-content p {
    color: var(--muted);
    line-height: 1.7;
}

.hero-actions {
    margin-top: 26px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-features {
    margin-top: 22px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.hero-features span {
    background: var(--surface-soft);
    padding: 8px 14px;
    border-radius: 999px;
    font-weight: 700;
}

/* ================================
   TARJETA HERO
================================ */

.hero-card {
    background: var(--surface);
    border-radius: 26px;
    padding: 34px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.hero-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: var(--surface-soft);
    font-size: 26px;
    color: var(--primary);
}

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

.about-section,
.services-section,
.testimonials-section,
.testimonial-form-section {
    padding: 80px 0;
}

.section-header {
    margin-bottom: 35px;
}

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

.section-header h2 {
    margin: 0 0 10px;
    font-size: clamp(2rem, 4vw, 3rem);
}

.section-header p {
    margin: 0;
    color: var(--muted);
}

.about-box,
.testimonial-form-card {
    max-width: 850px;
    margin: auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.about-box p {
    color: var(--muted);
    line-height: 1.7;
}

.about-actions {
    margin-top: 22px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* ================================
   SERVICIOS
================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.service-card {
    background: var(--surface);
    padding: 26px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: var(--surface-soft);
    color: var(--primary);
    font-size: 22px;
}

.service-card h3 {
    margin: 16px 0 10px;
}

.service-card p {
    color: var(--muted);
    line-height: 1.6;
}

.service-card a {
    color: var(--primary);
    font-weight: 800;
}

/* ================================
   TESTIMONIOS
================================ */

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.testimonial-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.testimonial-card p {
    color: var(--muted);
    line-height: 1.6;
}

/* ================================
   FORMULARIO
================================ */

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 800;
}

input,
textarea {
    width: 100%;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    padding: 12px 14px;
    border-radius: 14px;
    outline: none;
    font: inherit;
}

textarea {
    min-height: 120px;
    resize: vertical;
}

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

.site-footer {
    margin-top: 70px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
}

.footer-logo {
    width: 60px;
    border-radius: 14px;
    margin-bottom: 12px;
}

.site-footer p {
    color: var(--muted);
    line-height: 1.6;
}

/* REDES SOCIALES COMO TARJETAS */

.social-link {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 420px;
    min-height: 48px;
    padding: 12px 16px;
    margin: 10px 0;
    border-radius: 14px;
    background: rgba(148, 163, 184, .18);
    border: 1px solid var(--border);
    color: var(--text);
    font-weight: 700;
    transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.social-link i {
    width: 18px;
    font-size: 18px;
    text-align: center;
}

.social-link:hover {
    transform: translateY(-2px);
    background: var(--surface-soft);
    border-color: var(--primary);
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--muted);
}

/* ================================
   RESPONSIVE
================================ */

@media (max-width: 1000px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: absolute;
        top: 78px;
        left: 20px;
        right: 20px;
        display: none;
        flex-direction: column;
        gap: 12px;
        background: var(--surface);
        border: 1px solid var(--border);
        padding: 20px;
        border-radius: 22px;
        box-shadow: var(--shadow);
    }

    .nav-menu.is-open {
        display: flex;
    }

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

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

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

@media (max-width: 600px) {
    .services-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .btn {
        width: 100%;
    }

    .social-link {
        max-width: 100%;
    }
}