/* ============================================================
   CLISALUD — Stylesheet
   Colores:  Principal #6c422a  |  Secundario #9e6c45  |  Acento #e8c89f
   Fuentes:  Playfair Display (headings) | Lato (body)
============================================================ */

/* ----------------------------------------------------------
   1. VARIABLES & RESET
---------------------------------------------------------- */
:root {
    --c-primary:   #6c422a;
    --c-secondary: #9e6c45;
    --c-accent:    #e8c89f;
    --c-light:     #f8f3ed;
    --c-white:     #ffffff;
    --c-text:      #2e2019;
    --c-muted:     #6b5c4e;

    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body:    'Lato', Arial, sans-serif;

    --radius:      10px;
    --shadow-sm:   0 2px 12px rgba(108, 66, 42, 0.10);
    --shadow-md:   0 6px 28px rgba(108, 66, 42, 0.16);
    --shadow-lg:   0 14px 48px rgba(108, 66, 42, 0.22);
    --transition:  all 0.32s ease;

    --header-h:    80px;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--c-text);
    line-height: 1.72;
    overflow-x: hidden;
    background: var(--c-white);
}

img { display: block; max-width: 100%; }
a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }

/* ----------------------------------------------------------
   2. TYPOGRAPHY HELPERS
---------------------------------------------------------- */
h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    line-height: 1.25;
}

/* ----------------------------------------------------------
   3. LAYOUT HELPERS
---------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: 1.5rem;
}

/* ----------------------------------------------------------
   4. SHARED SECTION ATOMS
---------------------------------------------------------- */
.section__label {
    display: block;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--c-secondary);
    margin-bottom: 0.4rem;
}
.section__label.light { color: var(--c-accent); }

.section__title {
    font-size: clamp(1.9rem, 3.5vw, 2.6rem);
    color: var(--c-primary);
}

.section__divider {
    width: 52px;
    height: 3px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
    border-radius: 2px;
    margin-block: 1.1rem;
}
.section__divider.center { margin-inline: auto; }

.section__desc {
    max-width: 660px;
    margin-inline: auto;
    color: var(--c-muted);
    font-size: 1.05rem;
    line-height: 1.75;
}

.section__header {
    text-align: center;
    margin-bottom: 3.5rem;
}

/* ----------------------------------------------------------
   5. BUTTONS
---------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.8rem 2.1rem;
    border-radius: 50px;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn--primary {
    background: var(--c-primary);
    color: var(--c-white);
    border-color: var(--c-primary);
}
.btn--primary:hover {
    background: transparent;
    color: var(--c-primary);
}

.btn--outline {
    background: transparent;
    color: var(--c-primary);
    border-color: var(--c-primary);
}
.btn--outline:hover {
    background: var(--c-primary);
    color: var(--c-white);
}

.btn--light {
    background: var(--c-white);
    color: var(--c-primary);
    border-color: var(--c-white);
}
.btn--light:hover {
    background: transparent;
    color: var(--c-white);
    border-color: var(--c-white);
}

.btn--ghost {
    background: transparent;
    color: var(--c-white);
    border-color: rgba(255,255,255,0.65);
}
.btn--ghost:hover {
    background: rgba(255,255,255,0.15);
    border-color: var(--c-white);
}

.btn--whatsapp {
    background: #25D366;
    color: var(--c-white);
    border-color: #25D366;
}
.btn--whatsapp:hover {
    background: #1ebe5b;
    border-color: #1ebe5b;
}

/* ----------------------------------------------------------
   6. HEADER
---------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    inset-inline: 0;
    z-index: 900;
    height: var(--header-h);
    display: flex;
    align-items: center;
    transition: var(--transition);
}

/* Always white background */
.header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 2px 18px rgba(108, 66, 42, 0.10);
    transition: var(--transition);
}

.header .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

/* Logo */
.header__logo img {
    height: 56px;
    width: auto;
    transition: var(--transition);
}
.header.is-scrolled .header__logo img { height: 46px; }

/* Nav list */
.nav__list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav__link {
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--c-primary);
    position: relative;
    transition: var(--transition);
}
.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--c-secondary);
    border-radius: 2px;
    transition: width 0.3s ease;
}
.nav__link:hover::after,
.nav__link.is-active::after { width: 100%; }

/* CTA nav link — color secundario */
.nav__link--cta {
    background: var(--c-secondary);
    color: var(--c-white) !important;
    padding: 0.55rem 1.4rem;
    border-radius: 50px;
    letter-spacing: 0.5px;
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover { background: var(--c-primary); }

/* Hamburger toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 901;
}
.nav__toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--c-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Toggle — open state */
.nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile overlay */
.nav__overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 898;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.nav__overlay.is-visible { display: block; opacity: 1; }

/* ----------------------------------------------------------
   7. HERO
---------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    background-image: url('../assets/img/hero-bg.webp');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

/* Gradient overlay — sólido izquierda (0.6 opacidad), transparente derecha */
.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(108, 66, 42, 0.82) 0%,
        rgba(108, 66, 42, 0.60) 45%,
        rgba(108, 66, 42, 0.18) 100%
    );
}

.hero .container {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: flex-start;
    padding-block: 7rem 4rem;
}

.hero__content {
    max-width: 580px;
    color: var(--c-white);
    text-align: left;
}

.hero__eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 900;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: var(--c-accent);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--c-accent);
    padding-bottom: 0.4rem;
}

.hero__title {
    font-size: clamp(2.6rem, 5.5vw, 4.2rem);
    color: var(--c-white);
    margin-bottom: 1.4rem;
    text-shadow: 0 2px 18px rgba(0,0,0,0.25);
}

.hero__text {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.90);
    margin-bottom: 2.4rem;
    line-height: 1.8;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    flex-wrap: wrap;
}

.hero__scroll-down {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-white);
    font-size: 0.9rem;
    transition: var(--transition);
    animation: bounceDown 2s infinite;
}
.hero__scroll-down:hover { border-color: var(--c-accent); color: var(--c-accent); }

@keyframes bounceDown {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(7px); }
}

/* ----------------------------------------------------------
   8. ABOUT BRIEF (HOME)
---------------------------------------------------------- */
.about-brief {
    padding-block: 6rem;
    background: var(--c-white);
}

.about-brief__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4.5rem;
    align-items: center;
}

/* Image column */
.about-brief__img-wrap {
    position: relative;
    height: 520px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: top center;
    z-index: 1;
}

.about-brief__img-wrap::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: 22px;
    bottom: 22px;
    border: 3px solid var(--c-accent);
    border-radius: var(--radius);
    z-index: 0;
}

.about-brief__badge {
    position: absolute;
    bottom: -1rem;
    right: -1rem;
    z-index: 2;
    background: var(--c-primary);
    color: var(--c-white);
    padding: 0.9rem 1.4rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-size: 0.82rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    max-width: 260px;
}
.about-brief__badge i { font-size: 1.3rem; color: var(--c-accent); flex-shrink: 0; }

/* Text column */
.about-brief__text {
    color: var(--c-muted);
    font-size: 1.05rem;
    line-height: 1.82;
    margin-bottom: 1.8rem;
}

.check-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem 1rem;
    margin-bottom: 2rem;
}
.check-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--c-text);
}
.check-list li i { color: var(--c-secondary); font-size: 1rem; }

/* ----------------------------------------------------------
   9. SERVICES
---------------------------------------------------------- */
.services {
    padding-block: 6rem;
    background: var(--c-light);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--c-white);
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    border-bottom: 4px solid transparent;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-bottom-color: var(--c-primary);
}

.service-card__icon {
    width: 72px;
    height: 72px;
    background: var(--c-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.6rem;
    color: var(--c-primary);
    transition: var(--transition);
}
.service-card:hover .service-card__icon {
    background: var(--c-primary);
    color: var(--c-white);
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--c-primary);
    margin-bottom: 0.85rem;
}

.service-card p {
    color: var(--c-muted);
    font-size: 0.94rem;
    line-height: 1.72;
    flex: 1;
    margin-bottom: 1.5rem;
}

.service-card__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--c-secondary);
    transition: var(--transition);
    align-self: center;
}
.service-card__cta:hover { color: var(--c-primary); gap: 0.7rem; }

/* ----------------------------------------------------------
   10. QUIÉNES SOMOS
---------------------------------------------------------- */
.about-us {
    padding-block: 6rem;
    background: var(--c-white);
}

.about-us__grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 4rem;
    align-items: start;
}

.about-us__body p {
    color: var(--c-muted);
    font-size: 1.04rem;
    line-height: 1.82;
    margin-bottom: 1.2rem;
}

/* Credentials card */
.credentials-card {
    background: var(--c-light);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(108, 66, 42, 0.08);
}

.credentials-card__header {
    background: var(--c-primary);
    color: var(--c-white);
    padding: 1.2rem 1.6rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.credentials-card__header i   { font-size: 1.3rem; color: var(--c-accent); }
.credentials-card__header h4  {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--c-white);
}

.credentials__list {
    padding: 0.5rem 0;
}

.credentials__list li {
    padding: 0.8rem 1.6rem;
    font-size: 0.875rem;
    color: var(--c-muted);
    line-height: 1.55;
    border-bottom: 1px solid rgba(108, 66, 42, 0.07);
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
}
.credentials__list li:last-child { border-bottom: none; }

.cred-badge {
    display: inline-block;
    flex-shrink: 0;
    background: var(--c-secondary);
    color: var(--c-white);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 0.15rem 0.55rem;
    border-radius: 4px;
    margin-top: 0.15rem;
}

/* ----------------------------------------------------------
   11. CTA SECTION (CONTACTO)
---------------------------------------------------------- */
.cta-section {
    position: relative;
    padding-block: 6rem;
    background: var(--c-primary);
    text-align: center;
    overflow: hidden;
}

.cta-section__overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(158, 108, 69, 0.35) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section__content {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin-inline: auto;
}

.cta-section__content h2 {
    font-size: clamp(1.9rem, 3.5vw, 2.8rem);
    color: var(--c-white);
    margin-block: 0.5rem 1.1rem;
}

.cta-section__content p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.78;
    margin-bottom: 2.2rem;
}

.cta-section__actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ----------------------------------------------------------
   12. FOOTER
---------------------------------------------------------- */
.footer {
    background: #3d2010;
    padding-block: 4rem 0;
    color: rgba(255,255,255,0.68);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__logo {
    height: 50px;
    width: auto;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1) opacity(0.9);
}

.footer__brand p {
    font-size: 0.88rem;
    line-height: 1.7;
    max-width: 260px;
}

.footer__col h5 {
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--c-accent);
    margin-bottom: 1.2rem;
}

.footer__col ul li { margin-bottom: 0.6rem; }
.footer__col ul li a {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.65);
    transition: var(--transition);
}
.footer__col ul li a:hover { color: var(--c-accent); }

.footer__contact-list li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.875rem;
    margin-bottom: 0.7rem;
}
.footer__contact-list li i { color: var(--c-accent); width: 16px; }
.footer__contact-list li a { color: rgba(255,255,255,0.65); transition: var(--transition); }
.footer__contact-list li a:hover { color: var(--c-accent); }

.footer__bottom {
    text-align: center;
    padding-block: 1.4rem;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.35);
}

/* ----------------------------------------------------------
   13. BACK TO TOP
---------------------------------------------------------- */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 800;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--c-primary);
    color: var(--c-white);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    pointer-events: none;
}
.back-to-top.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.back-to-top:hover { background: var(--c-secondary); }

/* ----------------------------------------------------------
   14. ANIMATIONS (fade-in on scroll)
---------------------------------------------------------- */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----------------------------------------------------------
   15. RESPONSIVE — TABLET (≤ 1024px)
---------------------------------------------------------- */
@media (max-width: 1024px) {
    .about-brief__grid,
    .about-us__grid {
        gap: 2.5rem;
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

/* ----------------------------------------------------------
   16. RESPONSIVE — MOBILE (≤ 768px)
---------------------------------------------------------- */
@media (max-width: 768px) {

    /* Header mobile */
    .nav__toggle { display: flex; }

    .nav__list {
        position: fixed;
        top: 0;
        right: -100%;
        bottom: 0;
        width: min(80vw, 300px);
        background: var(--c-white);
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding: 2rem 2.5rem;
        gap: 0;
        z-index: 899;
        box-shadow: -4px 0 24px rgba(0,0,0,0.12);
        transition: right 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    .nav__list.is-open { right: 0; }

    .nav__list li { width: 100%; border-bottom: 1px solid rgba(108,66,42,0.08); }
    .nav__list li:last-child { border: none; }

    .nav__link {
        display: block;
        color: var(--c-primary) !important;
        padding: 1rem 0;
        font-size: 1rem;
    }
    .nav__link::after { bottom: 0; }

    .nav__link--cta {
        background: transparent !important;
        padding: 1rem 0;
        border-radius: 0;
        color: var(--c-secondary) !important;
    }

    /* Hero mobile */
    .hero .container { justify-content: center; }
    .hero__content { text-align: center; max-width: 100%; }
    .hero__actions { justify-content: center; }

    /* About brief mobile */
    .about-brief__grid { grid-template-columns: 1fr; }
    .about-brief__img-wrap { height: 340px; }
    .about-brief__img-wrap::before { display: none; }
    .about-brief__badge { right: 0; bottom: -0.5rem; }

    /* Services */
    .services__grid { grid-template-columns: 1fr; }

    /* Quiénes somos */
    .about-us__grid { grid-template-columns: 1fr; }

    /* CTA */
    .cta-section__actions { flex-direction: column; align-items: center; }

    /* Footer */
    .footer__grid { grid-template-columns: 1fr; }
    .footer__brand p { max-width: 100%; }

    /* Back to top */
    .back-to-top { bottom: 1.5rem; right: 1.5rem; }
}

/* ----------------------------------------------------------
   17. RESPONSIVE — SMALL (≤ 480px)
---------------------------------------------------------- */
@media (max-width: 480px) {
    .check-list { grid-template-columns: 1fr; }
    .hero__title { font-size: 2.2rem; }
}