/* ===========================
   CSS VARIABLES
   =========================== */
:root {
    --color-primary: #1b324d;
    --color-secondary: #1d2126;
    --color-accent: #2a7fff;
    --color-white: #ffffff;
    --color-bg-light: #f5f7fa;
    --color-bg-white: #ffffff;
    --color-text: #1d2126;
    --color-text-secondary: #5a6a7a;
    --color-text-light: #ffffff;
    --color-border: #e2e8f0;
    --color-whatsapp: #25d366;

    --font: 'Barlow', sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s ease;
    --shadow: 0 4px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.10);
}

/* ===========================
   RESET & BASE
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    color: var(--color-text);
    background: var(--color-bg-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }

/* ===========================
   UTILITIES
   =========================== */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ===========================
   BUTTONS
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}
.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}
.btn--primary:hover {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.btn--outline {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}
.btn--outline:hover {
    background: var(--color-white);
    color: var(--color-primary);
}
.btn--whatsapp {
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-color: var(--color-whatsapp);
    font-size: 1.1rem;
}
.btn--whatsapp:hover {
    background: #1ebe57;
    border-color: #1ebe57;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37,211,102,0.3);
}
.btn--sm { padding: 0.5rem 1.25rem; font-size: 0.85rem; }
.btn--lg { padding: 1rem 2.25rem; font-size: 1.1rem; }

/* ===========================
   NAVBAR
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}
.navbar.scrolled {
    box-shadow: var(--shadow);
}
.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.navbar__logo {
    display: flex;
    align-items: center;
}
.logo-img {
    height: 32px;
    width: auto;
}
.navbar__menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.navbar__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: var(--transition);
}
.navbar__link:hover {
    color: var(--color-primary);
}
.navbar__toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--color-primary);
    cursor: pointer;
}

/* ===========================
   HERO
   =========================== */
.hero {
    padding: 10rem 0 6rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    text-align: center;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(42,127,255,0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(42,127,255,0.1) 0%, transparent 40%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}
@keyframes heroGlow {
    0% { transform: translate(0, 0); }
    100% { transform: translate(2%, -2%); }
}
.hero__inner { position: relative; z-index: 1; }
.hero__badge {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    padding: 0.5rem 1.25rem;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 50px;
    margin-bottom: 1.5rem;
    color: rgba(255,255,255,0.85);
}
.hero__title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}
.hero__title span {
    color: var(--color-accent);
}
.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
    line-height: 1.7;
}
.hero__ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===========================
   SECTIONS
   =========================== */
.section {
    padding: 5rem 0;
}
.section--light { background: var(--color-bg-light); }
.section--white { background: var(--color-bg-white); }
.section--dark { background: var(--color-primary); }
.section--cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    text-align: center;
    padding: 6rem 0;
}

.section__header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3rem;
}
.section__tag {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}
.section__tag--light { color: rgba(255,255,255,0.6); }
.section__title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1rem;
}
.section__title--light { color: var(--color-white); }
.section__desc {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}
.section__header--light .section__desc { color: rgba(255,255,255,0.7); }

/* ===========================
   GRID
   =========================== */
.grid {
    display: grid;
    gap: 1.5rem;
}
.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
    .grid--2 { grid-template-columns: repeat(2, 1fr); }
    .grid--3 { grid-template-columns: repeat(2, 1fr); }
    .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
    .grid--3 { grid-template-columns: repeat(3, 1fr); }
    .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ===========================
   CARDS
   =========================== */
.card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--color-bg-light);
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-bottom: 1.25rem;
}
.card__icon--light {
    background: rgba(255,255,255,0.1);
    color: var(--color-white);
}
.card__icon--lg {
    width: 56px;
    height: 56px;
    font-size: 1.4rem;
}
.card__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.card__title--light { color: var(--color-white); }
.card__label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}
.card__text {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}
.card__text--light { color: rgba(255,255,255,0.7); }

/* Card variants */
.card--accent {
    border-color: transparent;
    background: var(--color-primary);
    color: var(--color-white);
}
.card--accent .card__title { color: var(--color-white); }
.card--accent .card__text { color: rgba(255,255,255,0.8); }
.card--accent .card__icon {
    background: rgba(255,255,255,0.1);
    color: var(--color-white);
}
.card--accent:hover {
    background: var(--color-secondary);
}

.card--glass {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(12px);
}
.card--glass:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.2);
}

.card--segment .card__icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
}

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

/* ===========================
   TEAM
   =========================== */
.team__avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    font-size: 1.6rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

/* ===========================
   STEPS
   =========================== */
.steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
.step {
    position: relative;
    padding: 2rem;
    background: var(--color-bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}
.step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.step__number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.15;
    line-height: 1;
    margin-bottom: 0.75rem;
}
.step__title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.step__text {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

@media (min-width: 640px) {
    .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
    .steps { grid-template-columns: repeat(4, 1fr); }
}

/* ===========================
   CTA SECTION
   =========================== */
.cta__inner { max-width: 640px; margin: 0 auto; }
.cta__title {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1rem;
}
.cta__title span { color: var(--color-accent); }
.cta__text {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 2rem;
    line-height: 1.7;
}
.cta__buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    background: var(--color-secondary);
    color: rgba(255,255,255,0.7);
    padding-top: 4rem;
}
.footer__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
}
.footer__brand { max-width: 300px; }
.navbar__logo--footer .logo-img {
    height: 32px;
    filter: none;
}
.footer__desc {
    font-size: 0.9rem;
    margin-top: 0.75rem;
    line-height: 1.6;
}
.footer__links h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-white);
    margin-bottom: 1rem;
}
.footer__links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 0.6rem;
    transition: var(--transition);
}
.footer__links a:hover { color: var(--color-white); }
.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 1.25rem 0;
}
.footer__bottom p {
    font-size: 0.8rem;
    text-align: center;
    color: rgba(255,255,255,0.4);
}

@media (min-width: 768px) {
    .footer__inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

/* ===========================
   SCROLL ANIMATIONS
   =========================== */
[data-scroll-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-scroll-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   RESPONSIVE - MOBILE
   =========================== */
@media (max-width: 768px) {
    .navbar__toggle { display: block; }
    .navbar__menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        transition: var(--transition);
    }
    .navbar__menu.active {
        transform: translateY(0);
    }
    .navbar__menu .btn--primary {
        width: 100%;
        justify-content: center;
    }
    .hero { padding: 8rem 0 4rem; }
    .section { padding: 3.5rem 0; }
    .section--cta { padding: 4rem 0; }
}