/* ================= VARIABLES CSS ================= */
:root {
    --header-height: 4.5rem;
    --hue: 215;
    --first-color: hsl(var(--hue), 85%, 45%);
    --first-color-alt: hsl(var(--hue), 85%, 35%);
    --first-color-glow: hsla(var(--hue), 85%, 55%, .4);
    --title-color: hsl(var(--hue), 24%, 95%);
    --text-color: hsl(var(--hue), 12%, 75%);
    --text-color-light: hsl(var(--hue), 8%, 60%);
    --body-color: hsl(var(--hue), 40%, 8%);
    --container-color: hsl(var(--hue), 30%, 12%);
    --glass-color: rgba(15, 23, 42, 0.6);
    --border-color: rgba(255, 255, 255, 0.1);
    --body-font: 'Inter', sans-serif;
    --title-font: 'Outfit', sans-serif;
    --biggest-font-size: 2.5rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1rem;
    --normal-font-size: .938rem;
    --small-font-size: .813rem;
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semi-bold: 600;
    --font-bold: 700;
    --font-black: 800;
    --z-tooltip: 10;
    --z-fixed: 100;
}

@media screen and (min-width: 968px) {
    :root {
        --biggest-font-size: 4.5rem;
        --h1-font-size: 2.25rem;
        --h2-font-size: 1.75rem;
        --h3-font-size: 1.25rem;
        --normal-font-size: 1rem;
        --small-font-size: .875rem;
    }
}

/* ================= BASE ================= */
* { box-sizing: border-box; padding: 0; margin: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    background-color: var(--body-color);
    color: var(--text-color);
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: var(--title-font);
    color: var(--title-color);
    font-weight: var(--font-bold);
}

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

/* ================= REUSABLE ================= */
.container { max-width: 1120px; margin-inline: 1.5rem; }
.grid { display: grid; gap: 1.5rem; }
.section { padding-block: 5rem 2rem; }

.section__title {
    font-size: var(--h1-font-size);
    text-align: center;
    margin-bottom: .5rem;
}

.section__subtitle {
    text-align: center;
    font-size: var(--normal-font-size);
    color: var(--first-color);
    margin-bottom: 3rem;
    font-weight: var(--font-medium);
}

.section__tag {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: hsla(var(--hue), 85%, 45%, .1);
    color: var(--first-color);
    padding: .4rem 1rem;
    border-radius: 2rem;
    font-size: var(--small-font-size);
    font-weight: var(--font-medium);
    margin-bottom: 1rem;
    border: 1px solid hsla(var(--hue), 85%, 45%, .2);
}

.section__header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 1rem;
}

.main { overflow: hidden; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    padding: 1rem 1.5rem;
    border-radius: .5rem;
    font-weight: var(--font-medium);
    transition: all .3s ease;
    cursor: pointer;
    border: none;
    font-family: var(--title-font);
    font-size: var(--normal-font-size);
}

.btn-primary {
    background-color: var(--first-color);
    color: #fff;
    box-shadow: 0 8px 24px hsla(var(--hue), 85%, 45%, .3);
}

.btn-primary:hover {
    background-color: var(--first-color-alt);
    box-shadow: 0 8px 32px hsla(var(--hue), 85%, 45%, .5);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--title-color);
    border: 1px solid var(--border-color);
}

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

.btn-full { width: 100%; justify-content: center; }

/* ================= HEADER & NAV ================= */
.header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    background-color: transparent;
    z-index: var(--z-fixed);
    transition: background-color .4s, backdrop-filter .4s;
}

.bg-header {
    background-color: var(--glass-color);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
}

.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    color: var(--title-color);
    font-family: var(--title-font);
    font-weight: var(--font-black);
    font-size: var(--h2-font-size);
    display: inline-flex;
    align-items: center;
    column-gap: .25rem;
}

.nav__logo i { color: var(--first-color); font-size: 1.5rem; }

.nav__logo-subtitle {
    font-size: var(--small-font-size);
    font-weight: var(--font-regular);
    color: var(--text-color);
    margin-left: .5rem;
    display: none;
}

.nav__toggle, .nav__close {
    font-size: 1.5rem;
    color: var(--title-color);
    cursor: pointer;
}

@media screen and (max-width: 767px) {
    .nav__menu {
        position: fixed;
        top: 0;
        left: 0;
        background-color: hsla(215, 40%, 8%, 0.97);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        width: 100%;
        height: 100vh;
        padding-top: 5rem;
        transition: transform .4s ease, visibility .4s;
        border-bottom: 1px solid var(--border-color);
        z-index: calc(var(--z-fixed) - 1);
        transform: translateY(-100%);
        visibility: hidden;
    }
    .nav__menu.show-menu {
        transform: translateY(0);
        visibility: visible;
    }
}

.nav__list {
    display: flex;
    flex-direction: column;
    text-align: center;
    row-gap: 2rem;
}

.nav__link {
    color: var(--title-color);
    font-family: var(--title-font);
    font-weight: var(--font-medium);
    transition: color .3s;
}

.nav__link:hover { color: var(--first-color); }

.nav__close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

.show-menu {
    transform: translateY(0) !important;
    visibility: visible !important;
}
.active-link { color: var(--first-color); }

/* ================= HERO ================= */
.hero {
    height: 100vh;
    background-size: cover;
    background-position: center;
    display: grid;
    place-items: center;
    position: relative;
    overflow: hidden;
}

.hero__particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.spark {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--first-color);
    border-radius: 50%;
    box-shadow: 0 0 6px 2px var(--first-color-glow);
    animation: sparkFloat linear infinite;
    opacity: 0;
}

@keyframes sparkFloat {
    0% { opacity: 0; transform: translateY(0) scale(1); }
    10% { opacity: 1; }
    90% { opacity: .6; }
    100% { opacity: 0; transform: translateY(-100vh) scale(0); }
}

.hero__container { padding-top: 3rem; align-items: center; position: relative; z-index: 2; }
.hero__data { text-align: center; }

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: hsla(var(--hue), 85%, 45%, .15);
    border: 1px solid hsla(var(--hue), 85%, 45%, .3);
    color: var(--first-color);
    padding: .5rem 1.25rem;
    border-radius: 2rem;
    font-size: var(--small-font-size);
    font-weight: var(--font-medium);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(8px);
}

.hero__title {
    font-size: var(--biggest-font-size);
    line-height: 1.1;
    margin-bottom: 1rem;
    text-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.hero__title span { color: var(--first-color); }

.hero__description {
    font-size: var(--h3-font-size);
    color: var(--text-color);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-inline: auto;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.hero__buttons {
    display: flex;
    justify-content: center;
    column-gap: 1rem;
    row-gap: 1rem;
    flex-wrap: wrap;
}

.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollBounce 2s infinite;
    z-index: 2;
}

.hero__scroll i {
    font-size: 2.5rem;
    color: var(--title-color);
    opacity: 0.7;
    transition: opacity .3s;
}

.hero__scroll i:hover { opacity: 1; }

@keyframes scrollBounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-15px); }
    60% { transform: translateY(-7px); }
}

/* ================= STATS ================= */
.stats {
    background: linear-gradient(180deg, var(--body-color) 0%, hsl(var(--hue), 40%, 6%) 100%);
    padding-block: 4rem;
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--first-color), transparent);
}

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

.stats__item {
    text-align: center;
    padding: 2rem 1rem;
    border-radius: 1rem;
    background: var(--container-color);
    border: 1px solid var(--border-color);
    transition: transform .3s, border-color .3s;
}

.stats__item:hover {
    transform: translateY(-5px);
    border-color: var(--first-color);
}

.stats__icon {
    font-size: 1.75rem;
    color: var(--first-color);
    margin-bottom: .75rem;
}

.stats__data {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.stats__number {
    font-family: var(--title-font);
    font-size: 2.5rem;
    font-weight: var(--font-black);
    color: var(--title-color);
    line-height: 1;
}

.stats__suffix {
    font-family: var(--title-font);
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--first-color);
}

.stats__label {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
    margin-top: .5rem;
}

/* ================= SERVICES ================= */
.services__container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.services__card {
    background-color: var(--container-color);
    padding: 3rem 2rem 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: transform .4s, box-shadow .4s, border-color .4s;
    text-align: center;
    display: flex;
    flex-direction: column;
}

.services__card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 32px hsla(var(--hue), 85%, 45%, .1);
    border-color: var(--first-color);
}

.services__icon {
    width: 60px;
    height: 60px;
    background-color: hsla(var(--hue), 85%, 45%, .1);
    border-radius: 50%;
    display: grid;
    place-items: center;
    margin-inline: auto;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: var(--first-color);
    transition: background-color .4s, color .4s, transform .4s;
}

.services__card:hover .services__icon {
    background-color: var(--first-color);
    color: #fff;
    transform: scale(1.1) rotate(5deg);
}

.services__title { margin-bottom: 1rem; }
.services__description { flex: 1; }

.services__cta {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.services__link {
    color: var(--first-color);
    font-family: var(--title-font);
    font-weight: var(--font-medium);
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    transition: gap .3s;
}

.services__link:hover { gap: .75rem; }

/* ================= PRODUCTS ================= */
.bg-dark { background-color: hsl(var(--hue), 40%, 6%); }

.products__container {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.products__card {
    background-color: var(--container-color);
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform .4s, box-shadow .4s;
}

.products__card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.5);
}

.products__img-container {
    position: relative;
    overflow: hidden;
}

.products__img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform .5s;
}

.products__card:hover .products__img { transform: scale(1.1); }

.products__overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background-color: var(--glass-color);
    backdrop-filter: blur(8px);
    padding: .25rem .75rem;
    border-radius: 2rem;
    font-size: var(--small-font-size);
    font-weight: var(--font-medium);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
}

.products__data { padding: 1.5rem; }
.products__title { margin-bottom: 1rem; }

.products__list {
    display: flex;
    flex-direction: column;
    row-gap: .5rem;
}

.products__list li {
    display: flex;
    align-items: center;
    column-gap: .5rem;
}

.products__list i {
    color: var(--first-color);
    font-size: 1.25rem;
}

/* ================= CONTACT ================= */
.contact__container {
    grid-template-columns: 1fr;
    row-gap: 3rem;
}

.contact__description { margin-bottom: 2rem; }

.contact__info {
    display: grid;
    gap: 1rem;
}

.contact__card {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    row-gap: 1rem;
    transition: border-color .3s, transform .3s;
}

.contact__card:hover {
    border-color: var(--first-color);
    transform: translateY(-3px);
}

.contact__icon {
    font-size: 2rem;
    color: var(--first-color);
    background-color: hsla(var(--hue), 85%, 45%, .1);
    padding: .5rem;
    border-radius: .5rem;
}

.contact__card-title { font-size: var(--h3-font-size); }

.contact__card-data {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}

.contact__button {
    font-family: var(--title-font);
    font-weight: var(--font-medium);
    color: var(--first-color);
    display: flex;
    align-items: center;
    column-gap: .25rem;
    font-size: var(--small-font-size);
    transition: gap .3s;
}

.contact__button:hover { gap: .75rem; }

.contact__form-container {
    background-color: var(--container-color);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    position: relative;
}

.contact__form-title {
    margin-bottom: 1.5rem;
    text-align: center;
}

.contact__form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.contact__form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.contact__form-label {
    display: block;
    font-family: var(--title-font);
    font-size: var(--small-font-size);
    margin-bottom: .5rem;
    color: var(--title-color);
}

.contact__form-input {
    width: 100%;
    padding: 1rem;
    border-radius: .5rem;
    background-color: var(--body-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    transition: border-color .3s, box-shadow .3s;
}

.contact__form-input:focus {
    outline: none;
    border-color: var(--first-color);
    box-shadow: 0 0 0 3px hsla(var(--hue), 85%, 45%, .2);
}

.contact__form-input.input-error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, .15);
}

textarea.contact__form-input { resize: vertical; }

.form__error {
    display: none;
    font-size: .75rem;
    color: #ef4444;
    margin-top: .35rem;
    padding-left: .25rem;
}

.form__error.show { display: block; }

.form__toast {
    position: absolute;
    bottom: -4rem;
    left: 50%;
    transform: translateX(-50%);
    background: hsl(145, 63%, 35%);
    color: #fff;
    padding: .75rem 1.5rem;
    border-radius: .5rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: var(--small-font-size);
    opacity: 0;
    pointer-events: none;
    transition: opacity .4s, bottom .4s;
    white-space: nowrap;
}

.form__toast.show {
    opacity: 1;
    bottom: -3rem;
}

.form__toast--error {
    background: #dc2626;
}

.btn__loading i {
    display: inline-block;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ================= FLOATING WHATSAPP ================= */
.whatsapp-float {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    width: 56px;
    height: 56px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 1.75rem;
    z-index: var(--z-fixed);
    box-shadow: 0 4px 16px rgba(37, 211, 102, .4);
    transition: transform .3s, box-shadow .3s;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37, 211, 102, .5);
}

.whatsapp-float__tooltip {
    position: absolute;
    left: calc(100% + .75rem);
    background: var(--container-color);
    color: var(--title-color);
    padding: .5rem 1rem;
    border-radius: .5rem;
    font-size: var(--small-font-size);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s;
    border: 1px solid var(--border-color);
}

.whatsapp-float:hover .whatsapp-float__tooltip { opacity: 1; }

/* Pulse animation on WhatsApp button */
.whatsapp-float::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid #25D366;
    animation: waPulse 2s ease-out infinite;
}

@keyframes waPulse {
    0% { transform: scale(1); opacity: .6; }
    100% { transform: scale(1.4); opacity: 0; }
}

/* ================= FOOTER ================= */
.footer {
    background-color: hsl(var(--hue), 40%, 6%);
    padding-top: 4rem;
    border-top: 1px solid var(--border-color);
}

.footer__container {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2.5rem;
    padding-bottom: 3rem;
}

.footer__logo {
    display: inline-flex;
    align-items: center;
    column-gap: .25rem;
    font-family: var(--title-font);
    font-weight: var(--font-black);
    font-size: var(--h2-font-size);
    margin-bottom: 1rem;
}

.footer__logo i { color: var(--first-color); }
.footer__title { margin-bottom: 1.5rem; }

.footer__links {
    display: flex;
    flex-direction: column;
    row-gap: .75rem;
}

.footer__link {
    color: var(--text-color);
    transition: color .3s, padding-left .3s;
}

.footer__link:hover {
    color: var(--first-color);
    padding-left: .5rem;
}

.footer__social { display: flex; column-gap: 1rem; }

.footer__social-link {
    font-size: 1.5rem;
    color: var(--title-color);
    background-color: var(--container-color);
    padding: .5rem;
    border-radius: .5rem;
    display: grid;
    place-items: center;
    transition: background-color .3s, transform .3s;
}

.footer__social-link:hover {
    background-color: var(--first-color);
    transform: translateY(-3px);
}

.footer__copy {
    text-align: center;
    padding: 2rem;
    padding-bottom: 5rem;
    border-top: 1px solid var(--border-color);
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}

/* ================= SCROLL UP ================= */
.scrollup {
    position: fixed;
    right: 1rem;
    bottom: -50%;
    background-color: var(--first-color);
    opacity: 0.8;
    color: #fff;
    padding: .5rem;
    border-radius: .4rem;
    display: grid;
    place-items: center;
    font-size: 1.25rem;
    z-index: var(--z-tooltip);
    transition: bottom .4s, opacity .4s, transform .4s;
}

.scrollup:hover { opacity: 1; transform: translateY(-3px); }
.show-scroll { bottom: 3rem; }

/* ================= ANIMATIONS ================= */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ================= BREAKPOINTS ================= */

/* Small mobile */
@media screen and (max-width: 360px) {
    .hero__title { font-size: 2rem; }
    .hero__badge { font-size: .7rem; padding: .4rem 1rem; }
    .btn { padding: .75rem 1rem; font-size: .813rem; }
    .stats__number { font-size: 2rem; }
    .whatsapp-float { width: 48px; height: 48px; font-size: 1.5rem; }
}

/* Mobile (up to 575px) */
@media screen and (max-width: 575px) {
    .services__container { grid-template-columns: 1fr; }
    .products__container { grid-template-columns: 1fr; }
    .footer__container { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .form__toast {
        left: 1rem;
        right: 1rem;
        transform: none;
        white-space: normal;
        font-size: .75rem;
    }
    .whatsapp-float__tooltip { display: none; }
}

/* Tablet small (576px+) */
@media screen and (min-width: 576px) {
    .contact__info { grid-template-columns: repeat(2, 1fr); }
    .contact__form-row { grid-template-columns: 1fr 1fr; gap: 1rem; }
    .stats__container { grid-template-columns: repeat(4, 1fr); }
}

/* Tablet (768px+) */
@media screen and (min-width: 768px) {
    .nav { column-gap: 3rem; }
    .nav__toggle, .nav__close { display: none; }
    .nav__list { flex-direction: row; column-gap: 2rem; }
    .nav__logo-subtitle { display: inline; }
    .hero__data { text-align: left; }
    .hero__buttons { justify-content: flex-start; }
    .contact__container { grid-template-columns: 1fr 1fr; }
}

/* Desktop (1024px+) */
@media screen and (min-width: 1024px) {
    .container { margin-inline: auto; }
    .section { padding-block: 7rem 2rem; }
    .nav__btn {
        padding: .5rem 1.5rem;
        border-radius: 2rem;
        color: #fff !important;
    }
}