/* ═══════════════════════════════════════
   ZERON — Landing Profesional
   ═══════════════════════════════════════ */

:root {
    --bg: #05080f;
    --bg2: #080d18;
    --bg-card: #0b111f;
    --border: rgba(255, 255, 255, 0.05);
    --border2: rgba(255, 255, 255, 0.08);
    --text: #f1f5f9;
    --text2: #94a3b8;
    --text3: #64748b;
    --accent: #3b82f6;
    --accent2: #8b5cf6;
    --accent3: #06b6d4;
    --gradient: linear-gradient(135deg, #3b82f6, #8b5cf6, #06b6d4);
    --green: #10b981;
    --red: #ef4444;
    --font: "Inter", system-ui, -apple-system, sans-serif;
    --display: "Outfit", var(--font);
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    background: var(--bg);
}
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}
h1,
h2,
h3 {
    font-family: var(--display);
    letter-spacing: -0.02em;
}
a {
    color: inherit;
    text-decoration: none;
}
ul {
    list-style: none;
}
img {
    display: block;
    max-width: 100%;
}
.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 32px;
}
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 600;
    padding: 13px 26px;
    border-radius: 9999px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
    letter-spacing: 0.01em;
}
.btn-sm {
    padding: 8px 18px;
    font-size: 12px;
}
.btn-lg {
    padding: 15px 30px;
    font-size: 15px;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow:
        0 0 30px rgba(59, 130, 246, 0.25),
        0 4px 14px rgba(59, 130, 246, 0.2);
}
.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow:
        0 0 50px rgba(59, 130, 246, 0.4),
        0 8px 25px rgba(59, 130, 246, 0.3);
}
.btn-outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text);
}
.btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.03);
}
.btn-ghost {
    background: transparent;
    color: var(--text2);
}
.btn-ghost:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.04);
}
.w-100 {
    width: 100%;
    justify-content: center;
}

/* ── Navbar ── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 18px 0;
    transition: all 0.35s;
}
.navbar.scrolled {
    background: rgba(5, 8, 15, 0.9);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 10px 0;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo img {
    height: 32px;
    width: auto;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav-links a:not(.btn) {
    font-size: 14px;
    font-weight: 500;
    color: var(--text2);
    transition: color 0.2s;
}
.nav-links a:not(.btn):hover {
    color: #fff;
}

/* ── Hero ── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: 140px 0 80px;
}
#particles {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0.5;
}
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(150px);
    pointer-events: none;
    z-index: 0;
}
.hero-glow-1 {
    top: -20%;
    right: -10%;
    width: 700px;
    height: 700px;
    background: rgba(59, 130, 246, 0.1);
}
.hero-glow-2 {
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: rgba(139, 92, 246, 0.08);
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 780px;
    margin: 0 auto;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--accent);
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    padding: 7px 18px;
    border-radius: 9999px;
    margin-bottom: 32px;
}
.pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #60a5fa;
    animation: pulseDot 2s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(96, 165, 250, 0.8);
}
@keyframes pulseDot {
    0%,
    100% {
        opacity: 0.4;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.5);
    }
}
.hero-title {
    font-size: clamp(42px, 7vw, 76px);
    font-weight: 900;
    line-height: 1.06;
    margin-bottom: 24px;
    color: #fff;
    letter-spacing: -0.03em;
}
.hero-subtitle {
    font-size: 18px;
    line-height: 1.75;
    color: var(--text2);
    max-width: 600px;
    margin: 0 auto 40px;
}
.hero-cta {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 2;
    opacity: 0.45;
    animation: fadeScroll 3s ease-in-out infinite;
}
.scroll-indicator span {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text3);
}
.scroll-line {
    width: 1px;
    height: 32px;
    background: linear-gradient(to bottom, var(--text3), transparent);
    animation: scrollLine 3s ease-in-out infinite;
}
@keyframes scrollLine {
    0%,
    100% {
        height: 18px;
        opacity: 0.3;
    }
    50% {
        height: 38px;
        opacity: 0.8;
    }
}
@keyframes fadeScroll {
    0%,
    100% {
        opacity: 0.25;
    }
    50% {
        opacity: 0.55;
    }
}

/* ── Section Headers ── */
.section-header {
    text-align: center;
    margin-bottom: 72px;
}
.section-eyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
}
.section-header h2 {
    font-size: clamp(30px, 4.5vw, 48px);
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 18px;
}
.section-desc {
    font-size: 16px;
    color: var(--text2);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ── Services ── */
.services {
    padding: 140px 0 100px;
    background: var(--bg);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 44px 36px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.service-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(
        600px circle at 50% 0%,
        rgba(59, 130, 246, 0.06),
        transparent 70%
    );
    opacity: 0;
    transition: opacity 0.5s;
}
.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.2);
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.5);
}
.service-card:hover::before {
    opacity: 1;
}
.service-card.featured {
    border-color: rgba(59, 130, 246, 0.15);
    background: linear-gradient(
        180deg,
        rgba(59, 130, 246, 0.04) 0%,
        var(--bg-card) 40%
    );
}
.service-card > * {
    position: relative;
    z-index: 1;
}
.service-number {
    font-family: var(--display);
    font-size: 56px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.025);
    position: absolute;
    top: 16px;
    right: 24px;
    line-height: 1;
    pointer-events: none;
}
.service-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    font-size: 20px;
    color: var(--accent);
}
.service-card.featured .service-icon {
    background: rgba(59, 130, 246, 0.18);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.12);
}
.service-card h3 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 14px;
    color: #fff;
}
.service-card p {
    font-size: 14.5px;
    color: var(--text2);
    line-height: 1.7;
    margin-bottom: 28px;
}
.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}
.service-tags li {
    font-size: 11px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.025);
    color: var(--text3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    letter-spacing: 0.02em;
}
.service-card.featured .service-tags li {
    background: rgba(59, 130, 246, 0.06);
    border-color: rgba(59, 130, 246, 0.12);
    color: #93bbfd;
}

/* ── Products ── */
.products {
    padding: 100px 0 120px;
    background: var(--bg2);
}
.product-showcase {
    margin-bottom: 72px;
}
.product-card-main {
    background: linear-gradient(
        160deg,
        rgba(59, 130, 246, 0.04),
        rgba(139, 92, 246, 0.03),
        rgba(6, 182, 212, 0.02)
    );
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 56px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.product-card-main::after {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 1px;
    background: var(--gradient);
    opacity: 0.4;
}
.product-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
    padding: 6px 16px;
    border-radius: 9999px;
    margin-bottom: 28px;
}
.product-logo-area {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 16px;
}
.product-icon-large {
    font-size: 44px;
}
.product-logo-area h2 {
    font-size: 48px;
    font-weight: 900;
    letter-spacing: -0.03em;
    color: #fff;
}
.product-tagline {
    font-size: 16px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 24px;
}
.product-desc {
    font-size: 16px;
    color: var(--text2);
    line-height: 1.75;
    max-width: 620px;
    margin: 0 auto 36px;
}
.product-features {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}
.pf-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    padding: 10px 18px;
    border-radius: 9999px;
}
.pf-item i {
    color: var(--accent);
    font-size: 14px;
}
.product-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.products-stack {
    text-align: center;
}
.products-stack h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text2);
    margin-bottom: 24px;
}
.stack-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}
.stack-pills span {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 9999px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    font-size: 13px;
    font-weight: 600;
    color: var(--text2);
    transition: all 0.25s;
}
.stack-pills span:hover {
    border-color: rgba(255, 255, 255, 0.14);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}
.stack-pills img {
    width: 22px;
    height: 22px;
}
.stack-pills i {
    font-size: 17px;
    color: var(--accent);
}

/* ── Observatory ── */
.observatory {
    padding: 120px 0 140px;
    background: var(--bg);
}
.observatory-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.obs-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px 30px;
    transition: all 0.35s;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
}
.obs-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.4);
}
.obs-card.coming-soon {
    opacity: 0.7;
    cursor: default;
}
.obs-card.coming-soon:hover {
    transform: none;
    opacity: 0.8;
}
.obs-icon {
    font-size: 36px;
    margin-bottom: 20px;
}
.obs-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 9999px;
    background: rgba(16, 185, 129, 0.12);
    color: var(--green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}
.obs-badge.soon {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
    border-color: rgba(245, 158, 11, 0.2);
}
.obs-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #fff;
}
.obs-card p {
    font-size: 13.5px;
    color: var(--text2);
    line-height: 1.65;
    margin-bottom: 24px;
    flex: 1;
}
.obs-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    padding: 14px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.obs-stats span {
    font-size: 11px;
    color: var(--text3);
}
.obs-stats strong {
    color: #fff;
    font-size: 16px;
    font-family: var(--display);
    display: block;
}
.obs-cta {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.25s;
}
a.obs-card:hover .obs-cta {
    gap: 12px;
}
.obs-cta.muted {
    color: var(--text3);
}

/* ── Footer ── */
.footer {
    padding: 80px 0 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background: var(--bg);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer-logo {
    height: 28px;
    width: auto;
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 14px;
    color: var(--text3);
    line-height: 1.7;
    max-width: 340px;
}
.footer-links h4,
.footer-contact h4 {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text2);
    margin-bottom: 20px;
}
.footer-links li,
.footer-contact li {
    font-size: 14px;
    color: var(--text3);
    margin-bottom: 9px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}
.footer-links a:hover {
    color: #fff;
}
.footer-contact li i {
    width: 16px;
    text-align: center;
    color: var(--text2);
}
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-bottom p {
    font-size: 12px;
    color: var(--text3);
}

/* ── WhatsApp ── */
.wa-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 200;
}
.wa-btn {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    border: none;
    background: #25d366;
    color: #fff;
    font-size: 28px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 35px rgba(37, 211, 102, 0.4);
    transition: all 0.3s;
    animation: waPulse 2.5s ease-in-out infinite;
}
@keyframes waPulse {
    0%,
    100% {
        box-shadow: 0 8px 35px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 8px 55px rgba(37, 211, 102, 0.6);
    }
}
.wa-btn:hover {
    transform: scale(1.1);
    animation: none;
    box-shadow: 0 12px 45px rgba(37, 211, 102, 0.6);
}
.wa-modal {
    position: absolute;
    bottom: 78px;
    right: 0;
    width: 340px;
    background: #111b21;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px) scale(0.95);
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}
.wa-modal.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
.wa-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 20px 18px;
    background: #075e54;
}
.wa-header h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}
.wa-header p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}
.wa-close {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}
.wa-close:hover {
    background: rgba(255, 255, 255, 0.22);
}
.wa-body {
    padding: 24px 20px 20px;
    background: #111b21;
}
.wa-greeting {
    font-size: 14px;
    color: #e9edef;
    line-height: 1.6;
    margin-bottom: 20px;
    padding: 12px 16px;
    background: #1f2c33;
    border-radius: 12px;
    border-bottom-left-radius: 2px;
}
.wa-body form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.wa-body input,
.wa-body textarea {
    width: 100%;
    padding: 13px 16px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: #1f2c33;
    color: #e9edef;
    font-family: var(--font);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}
.wa-body input:focus,
.wa-body textarea:focus {
    border-color: #25d366;
}
.wa-body textarea {
    min-height: 80px;
    resize: vertical;
}
.wa-body .btn-primary {
    background: #25d366;
}
.wa-body .btn-primary:hover {
    background: #1ebe5b;
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.3);
}
.wa-secure {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 11px;
    color: #8696a0;
    margin-top: 2px;
}

/* ── Reveal ── */
.reveal {
    opacity: 0;
    transform: translateY(36px);
    transition:
        opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .services-grid,
    .observatory-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .product-card-main {
        padding: 40px 24px;
    }
    .product-logo-area h2 {
        font-size: 36px;
    }
    .nav-links {
        gap: 16px;
    }
    .nav-links a:not(.btn) {
        font-size: 12px;
    }
}
@media (max-width: 600px) {
    .hero {
        padding: 120px 0 60px;
    }
    .hero-title {
        font-size: 36px;
    }
    .hero-subtitle {
        font-size: 15px;
    }
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    .btn-lg {
        width: 100%;
        justify-content: center;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .product-features {
        flex-direction: column;
        align-items: center;
    }
    .container {
        padding: 0 20px;
    }
    .wa-modal {
        width: calc(100vw - 40px);
        right: -10px;
    }
}