/* ===== Variables ===== */
:root {
    --color-primary: #0A2540;
    --color-primary-dark: #051529;
    --color-accent: #FF6B35;
    --color-accent-dark: #E55420;
    --color-light: #F5F7FA;
    --color-dark: #0F1724;
    --color-gray: #5B6876;
    --color-gray-light: #E3E8EE;
    --color-white: #FFFFFF;
    --color-whatsapp: #25D366;
    --color-whatsapp-dark: #1EBE57;

    --font-heading: 'Barlow Condensed', Impact, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --container: 1200px;
    --radius: 10px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 10px rgba(10, 37, 64, 0.06);
    --shadow-md: 0 10px 30px rgba(10, 37, 64, 0.1);
    --shadow-lg: 0 20px 50px rgba(10, 37, 64, 0.15);
    --transition: 0.3s ease;
}

/* ===== Reset ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
body {
    font-family: var(--font-body);
    color: var(--color-dark);
    line-height: 1.6;
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
    letter-spacing: 0.3px;
}
.btn--large { padding: 1rem 2rem; font-size: 1rem; }
.btn--whatsapp {
    background: var(--color-whatsapp);
    color: var(--color-white);
}
.btn--whatsapp:hover { background: var(--color-whatsapp-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--primary {
    background: var(--color-accent);
    color: var(--color-white);
}
.btn--primary:hover { background: var(--color-accent-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}
.btn--outline:hover { background: var(--color-white); color: var(--color-primary); }
.btn--dark {
    background: var(--color-primary);
    color: var(--color-white);
}
.btn--dark:hover { background: var(--color-primary-dark); transform: translateY(-2px); }

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 100;
    transition: all var(--transition);
}
.header .container { padding: 0; max-width: 100%; }
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding-right: 2rem;
}
.header__logo {
    display: flex;
    align-items: center;
    height: 100%;
}
.header__logo-img {
    height: 42px;
    width: auto;
    object-fit: contain;
    display: block;
    transition: transform var(--transition);
}
.header__logo:hover .header__logo-img {
    transform: scale(1.03);
}

.nav { display: flex; align-items: center; gap: 2rem; }
.nav__list { display: flex; gap: 1.75rem; }
.nav__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-dark);
    position: relative;
    transition: color var(--transition);
}
.nav__link::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 0; height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
}
.nav__link:hover { color: var(--color-accent); }
.nav__link:hover::after { width: 100%; }
.nav__cta { display: flex; gap: 0.5rem; }
.nav__cta .btn { padding: 0.6rem 1.2rem; font-size: 0.85rem; }

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}
.nav__toggle span {
    display: block;
    width: 26px; height: 2px;
    background: var(--color-dark);
    transition: all var(--transition);
}
.nav__close {
    display: none;
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    font-size: 2rem;
    color: var(--color-dark);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(10, 37, 64, 0.85) 0%, rgba(10, 37, 64, 0.6) 100%),
        url('images/hero-calderas.jpg') center/cover no-repeat;
    color: var(--color-white);
    padding: 120px 0 80px;
    text-align: center;
}
.hero__overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 40%, transparent, rgba(5, 21, 41, 0.5));
}
.hero__content { position: relative; z-index: 2; max-width: 860px; }
.hero__eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--color-accent);
    border-radius: 999px;
}
.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6.5vw, 5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    text-transform: uppercase;
}
.hero__title-accent {
    color: var(--color-accent);
}
.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 400;
    margin-bottom: 0.5rem;
    opacity: 0.95;
    letter-spacing: 0.5px;
}
.hero__text {
    font-size: 1.05rem;
    opacity: 0.85;
    margin-bottom: 2.5rem;
    font-weight: 300;
}
.hero__buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}
.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.hero__scroll a {
    display: block;
    width: 26px; height: 42px;
    border: 2px solid rgba(255,255,255,0.7);
    border-radius: 999px;
    position: relative;
}
.hero__scroll span {
    position: absolute;
    top: 8px; left: 50%;
    width: 4px; height: 8px;
    background: var(--color-white);
    border-radius: 4px;
    transform: translateX(-50%);
    animation: scrollDown 1.8s infinite;
}
@keyframes scrollDown {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 24px; }
}

/* ===== Section Headers ===== */
.section__header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 4rem;
}
.section__eyebrow {
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 1rem;
}
.section__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
}
.section__lead {
    font-size: 1.1rem;
    color: var(--color-gray);
}
.section__header--light .section__title { color: var(--color-white); }
.section__header--light .section__eyebrow { color: var(--color-accent); }

/* ===== About ===== */
.about { padding: 7rem 0; background: var(--color-white); }
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 4rem;
    align-items: center;
}
.about__image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    isolation: isolate;
}
.about__image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(10, 37, 64, 0.35) 100%);
    pointer-events: none;
    z-index: 1;
}
.about__image img {
    width: 100%;
    height: 100%;
    min-height: 520px;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.about__image:hover img { transform: scale(1.03); }
.about__badge {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 1.25rem 1.75rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1;
}
.about__badge-number {
    font-family: var(--font-heading);
    font-size: 2.75rem;
    font-weight: 800;
}
.about__badge-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 0.3rem;
}
.about__content .section__title { text-align: left; }
.about__lead {
    font-size: 1.15rem;
    color: var(--color-dark);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}
.about__text {
    color: var(--color-gray);
    margin-bottom: 1rem;
    line-height: 1.7;
}
.about__text strong { color: var(--color-dark); }
.about__lead strong { color: var(--color-accent); }
.about__quote {
    margin-top: 1.5rem;
    padding-left: 1.25rem;
    border-left: 4px solid var(--color-accent);
    font-style: italic;
    font-size: 1.15rem;
    color: var(--color-primary);
    font-weight: 500;
}

/* ===== Services ===== */
.services {
    padding: 7rem 0;
    background:
        linear-gradient(135deg, rgba(245, 247, 250, 0.72) 0%, rgba(245, 247, 250, 0.65) 100%),
        url('images/servicios-bg.jpg') center/cover no-repeat fixed;
    position: relative;
}
.services::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, var(--color-light) 0%, transparent 15%, transparent 85%, var(--color-light) 100%);
    pointer-events: none;
}
.services .container { position: relative; z-index: 1; }
.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--color-primary);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--color-accent);
}
.service-card--featured {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    border-top-color: var(--color-accent);
}
.service-card--featured .service-card__title { color: var(--color-white); }
.service-card--featured .service-card__list li { color: rgba(255,255,255,0.85); }
.service-card--featured .service-card__list li::before { background: var(--color-accent); }

.service-card__header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-gray-light);
}
.service-card--featured .service-card__header {
    border-bottom-color: rgba(255,255,255,0.1);
}
.service-card__icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 107, 53, 0.1);
    color: var(--color-accent);
    border-radius: 12px;
    margin-bottom: 1rem;
}
.service-card--featured .service-card__icon {
    background: rgba(255, 107, 53, 0.2);
}
.service-card__title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.service-card--featured .service-card__title { color: var(--color-white); }
.service-card__intro {
    color: var(--color-gray);
    font-size: 0.95rem;
    line-height: 1.65;
    margin-bottom: 1.25rem;
}
.service-card--featured .service-card__intro { color: rgba(255,255,255,0.85); }
.service-card--featured .service-card__intro strong { color: var(--color-accent); }
.service-card__list li {
    position: relative;
    padding-left: 1.5rem;
    padding-block: 0.4rem;
    color: var(--color-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}
.service-card__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.85rem;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
}

.service-card__collapse {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.45s ease;
    margin-top: 0;
}
.service-card__collapse > ul {
    overflow: hidden;
    min-height: 0;
}
.service-card.is-open .service-card__collapse {
    grid-template-rows: 1fr;
    margin-top: 0.5rem;
    margin-bottom: 1.25rem;
}
.service-card .service-card__list {
    padding-top: 1rem;
    border-top: 1px solid var(--color-gray-light);
}
.service-card--featured .service-card__list {
    border-top-color: rgba(255, 255, 255, 0.12);
}

.service-card__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: auto;
    align-self: flex-start;
    padding: 0.75rem 1.75rem;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    letter-spacing: 0.3px;
    border: none;
}
.service-card__btn:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.service-card__btn-icon {
    transition: transform 0.35s ease;
}
.service-card.is-open .service-card__btn-icon {
    transform: rotate(180deg);
}

/* ===== Features ===== */
.features {
    padding: 7rem 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}
.features::before {
    content: '';
    position: absolute;
    top: -100px; right: -100px;
    width: 400px; height: 400px;
    background: var(--color-accent);
    opacity: 0.08;
    border-radius: 50%;
}
.features::after {
    content: '';
    position: absolute;
    bottom: -150px; left: -150px;
    width: 500px; height: 500px;
    background: var(--color-accent);
    opacity: 0.05;
    border-radius: 50%;
}
.features .container { position: relative; z-index: 1; }
.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.5rem;
}
.feature {
    text-align: center;
    padding: 2.5rem 1.5rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.feature:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
    border-color: var(--color-accent);
}
.feature__icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 107, 53, 0.15);
    color: var(--color-accent);
    border-radius: 50%;
}
.feature__stat {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    line-height: 1;
    margin-bottom: 1rem;
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-weight: 800;
}
.feature__stat-plus {
    font-size: 2.5rem;
    margin-top: 0.6rem;
    margin-right: 0.1rem;
}
.feature__stat-number {
    font-size: 5.5rem;
    letter-spacing: -2px;
}
.feature--stat .feature__title {
    color: var(--color-accent);
}
.feature__title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.feature__text {
    font-size: 0.95rem;
    opacity: 0.8;
    line-height: 1.6;
}

/* ===== Contact ===== */
.contact {
    padding: 7rem 0;
    background: var(--color-light);
}
.contact__card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-columns: 1.3fr 1fr;
}
.contact__content { padding: 4rem 3rem; }
.contact__content .section__title { text-align: left; }
.contact__lead {
    font-size: 1.05rem;
    color: var(--color-gray);
    margin-bottom: 2rem;
    line-height: 1.7;
}
.contact__list { margin-bottom: 2.5rem; }
.contact__list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-gray-light);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.contact__label {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.75rem;
    color: var(--color-accent);
    font-weight: 700;
}
.contact__value {
    color: var(--color-dark);
    font-weight: 500;
    font-size: 1.05rem;
    transition: color var(--transition);
}
a.contact__value:hover { color: var(--color-accent); }
.contact__buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.contact__visual {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.contact__visual::before {
    content: '';
    position: absolute;
    top: -50%; right: -30%;
    width: 250px; height: 250px;
    background: var(--color-accent);
    opacity: 0.2;
    border-radius: 50%;
}
.contact__badge {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 2rem;
}
.contact__badge-top,
.contact__badge-bottom {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    opacity: 0.9;
}
.contact__badge-main {
    display: block;
    font-family: var(--font-heading);
    font-size: clamp(8rem, 15vw, 14rem);
    font-weight: 800;
    line-height: 0.9;
    color: var(--color-accent);
    margin: 1rem 0;
    letter-spacing: -2px;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 3rem 0 2rem;
}
.footer__inner {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    align-items: center;
}
.footer__brand { display: flex; flex-direction: column; }
.footer__logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: 2px;
}
.footer__tagline {
    font-size: 0.8rem;
    opacity: 0.6;
    margin-top: 0.25rem;
    letter-spacing: 1px;
}
.footer__copy {
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.6;
}
.footer__links {
    display: flex;
    gap: 1.25rem;
    justify-content: flex-end;
    flex-wrap: wrap;
}
.footer__links a {
    font-size: 0.85rem;
    opacity: 0.7;
    transition: opacity var(--transition);
}
.footer__links a:hover { opacity: 1; color: var(--color-accent); }

/* ===== Floating WhatsApp ===== */
.float-whatsapp {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px; height: 56px;
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 50;
    transition: all var(--transition);
    animation: pulse 2s infinite;
}
.float-whatsapp:hover { transform: scale(1.1); background: var(--color-whatsapp-dark); }
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5), var(--shadow-lg); }
    50% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0), var(--shadow-lg); }
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .nav {
        position: fixed;
        top: 0; right: -100%;
        width: 85%; max-width: 360px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        transition: right var(--transition);
    }
    .nav.is-open { right: 0; }
    .nav__list {
        flex-direction: column;
        gap: 1.5rem;
        width: 100%;
    }
    .nav__link { font-size: 1.1rem; }
    .nav__cta { flex-direction: column; width: 100%; margin-top: 2rem; }
    .nav__cta .btn { width: 100%; }
    .nav__toggle { display: flex; }
    .nav__close { display: block; }

    .about__grid,
    .contact__card,
    .footer__inner {
        grid-template-columns: 1fr;
    }
    .about__image img { min-height: 380px; }
    .contact__content { padding: 3rem 2rem; }
    .contact__visual { min-height: 240px; }
    .footer__links { justify-content: center; }
    .footer__copy { text-align: center; }
}

@media (max-width: 560px) {
    .container { padding: 0 1rem; }
    .about, .services, .features, .contact { padding: 4.5rem 0; }
    .section__header { margin-bottom: 2.5rem; }
    .hero { padding: 100px 0 60px; }
    .hero__buttons { flex-direction: column; width: 100%; }
    .hero__buttons .btn { width: 100%; }
    .header__inner { height: 60px; padding-right: 1rem; }
    .header__logo-img { height: 40px; }
    .contact__content { padding: 2.5rem 1.5rem; }
    .contact__buttons { flex-direction: column; }
    .contact__buttons .btn { width: 100%; }
    .contact__badge-main { font-size: 7rem; }
    .about__badge { padding: 1rem 1.25rem; bottom: 1rem; left: 1rem; }
    .about__badge-number { font-size: 2rem; }
}