:root {
    --bg: #0d2d36;
    --bg-soft: #ffffff;
    --text: #0d1e24;
    --muted: #4d636b;
    --brand: #007a78;
    --brand-strong: #005e5d;
    --accent: #ff8a3d;
    --card-border: rgba(0, 121, 120, 0.18);
    --shadow: 0 18px 60px rgba(7, 41, 50, 0.12);
}

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

body {
    position: relative;
    min-height: 100vh;
    font-family: "Segoe UI", "Trebuchet MS", Tahoma, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 10% 10%, rgba(54, 170, 164, 0.35) 0, transparent 40%),
        radial-gradient(circle at 88% 85%, rgba(255, 138, 61, 0.26) 0, transparent 36%),
        linear-gradient(180deg, #123a45 0%, #0d2d36 65%),
        var(--bg);
    overflow-x: hidden;
}

.bg-shape {
    position: fixed;
    border-radius: 999px;
    filter: blur(2px);
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
}

.bg-shape-a {
    width: 420px;
    height: 420px;
    background: linear-gradient(140deg, rgba(0, 122, 120, 0.35), rgba(0, 122, 120, 0));
    top: -130px;
    right: -110px;
}

.bg-shape-b {
    width: 340px;
    height: 340px;
    background: linear-gradient(220deg, rgba(255, 138, 61, 0.35), rgba(255, 138, 61, 0));
    bottom: -120px;
    left: -80px;
}

.site-header,
.main-content {
    position: relative;
    z-index: 1;
}

.site-header {
    max-width: 1080px;
    margin: 0 auto;
    padding: 1.3rem 1.2rem 0;
}

.brand img {
    width: 160px;
    height: auto;
}

.main-content {
    max-width: 1080px;
    margin: 0 auto;
    padding: 1.4rem 1.2rem 3rem;
}

.hero {
    background: linear-gradient(140deg, rgba(255, 255, 255, 0.94), rgba(236, 247, 246, 0.94));
    border: 1px solid var(--card-border);
    border-radius: 26px;
    box-shadow: var(--shadow);
    padding: 2.2rem 2rem;
    animation: rise-in 0.65s ease-out both;
}

.eyebrow {
    font-family: "Arial", "Segoe UI", sans-serif;
    letter-spacing: 0.12em;
    font-size: 0.82rem;
    color: var(--brand);
    margin-bottom: 0.6rem;
}

.hero h1 {
    font-size: clamp(1.65rem, 3.2vw, 2.6rem);
    line-height: 1.1;
    margin-bottom: 0.8rem;
}

.hero-text {
    color: var(--muted);
    font-size: 1.02rem;
    max-width: 62ch;
}

.smart-download {
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
    margin-top: 1.6rem;
}

.smart-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    border: 1px solid var(--card-border);
    background: #f7ffff;
    color: var(--brand-strong);
    font-size: 0.92rem;
    padding: 0.6rem 0.95rem;
}

.smart-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.1rem;
    border-radius: 12px;
    color: #ffffff;
    text-decoration: none;
    background: linear-gradient(135deg, var(--brand), var(--brand-strong));
    font-family: "Arial", "Segoe UI", sans-serif;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.smart-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 22px rgba(0, 94, 93, 0.25);
}

.download-grid {
    margin-top: 1.7rem;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.download-card {
    position: relative;
    display: grid;
    gap: 0.8rem;
    justify-items: start;
    padding: 1.35rem;
    border-radius: 20px;
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 10px 24px rgba(8, 38, 46, 0.08);
    transform: translateY(10px);
    opacity: 0;
    animation: card-in 0.6s ease forwards;
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.download-card:nth-child(2) {
    animation-delay: 0.12s;
}

.download-card:nth-child(3) {
    animation-delay: 0.24s;
}

.download-card img {
    width: 88px;
    height: 88px;
    object-fit: contain;
}

.download-card h2 {
    font-size: 1.3rem;
}

.download-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 34px rgba(8, 38, 46, 0.14);
}

.download-card p {
    color: var(--muted);
    font-size: 0.95rem;
    min-height: 2.8em;
}

.download-btn {
    font-family: "Arial", "Segoe UI", sans-serif;
    text-decoration: none;
    color: #fff;
    background: #143d47;
    padding: 0.64rem 0.95rem;
    border-radius: 10px;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.download-btn:hover {
    background: #0a2d35;
    transform: translateY(-2px);
}

.recommended {
    background: linear-gradient(180deg, #ffffff, #fff7f1);
    border-color: rgba(255, 138, 61, 0.92);
    border-width: 2px;
    box-shadow: 0 24px 48px rgba(255, 138, 61, 0.28);
    transform: translateY(-8px) scale(1.03);
}

.recommended::before {
    content: "PARA TU SISTEMA OPERATIVO";
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-family: "Arial", "Segoe UI", sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    border-radius: 999px;
    padding: 0.45rem 0.9rem;
    background: linear-gradient(135deg, #ff8a3d, #db6a21);
    color: #ffffff;
    box-shadow: 0 10px 22px rgba(219, 106, 33, 0.3);
    white-space: nowrap;
}

.recommended h2 {
    color: #8b3f0f;
    font-size: 1.5rem;
}

.recommended .download-btn {
    background: linear-gradient(135deg, #ff8a3d, #db6a21);
    box-shadow: 0 12px 24px rgba(219, 106, 33, 0.22);
}

.recommended .download-btn:hover {
    background: linear-gradient(135deg, #f57c2c, #c95f1b);
}

.recommended img {
    transform: scale(1.08);
}

.help-box {
    position: relative;
    margin-top: 1.4rem;
    border-radius: 22px;
    background: linear-gradient(135deg, #fffaf5, #ffffff 60%);
    border: 1px solid rgba(255, 138, 61, 0.28);
    border-left: 8px solid var(--accent);
    box-shadow: 0 18px 34px rgba(8, 38, 46, 0.14);
    padding: 1.5rem 1.5rem 1.4rem;
    overflow: hidden;
    text-align: left;
}

.help-box::before {
    content: "IMPORTANTE";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 0.8rem;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    background: linear-gradient(135deg, #ff8a3d, #db6a21);
    color: #ffffff;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    box-shadow: 0 10px 22px rgba(219, 106, 33, 0.3);
    white-space: nowrap;
}

.help-box h2 {
    font-size: clamp(1.3rem, 2.6vw, 1.75rem);
    line-height: 1.15;
    margin: 0 0 0.8rem;
    max-width: none;
    text-align: left;
}

.help-box p {
    color: #29444c;
    font-size: 1.02rem;
    line-height: 1.7;
    max-width: none;
}

.help-steps {
    display: grid;
    gap: 0.75rem;
    margin: 0.6rem 0 0;
    text-align: left;
}

.help-steps p {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    width: 100%;
    padding: 0.85rem 0.95rem;
    border-radius: 14px;
    background: rgba(20, 61, 71, 0.05);
    border: 1px solid rgba(20, 61, 71, 0.08);
    text-align: left;
}

.help-steps strong {
    color: #143d47;
}

@keyframes rise-in {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes card-in {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 980px) {
    .download-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .site-header {
        padding-top: 1rem;
    }

    .hero {
        padding: 1.4rem 1.1rem;
    }

    .download-grid {
        grid-template-columns: 1fr;
    }

    .download-card p {
        min-height: 0;
    }

    .recommended {
        transform: translateY(-4px) scale(1.01);
    }

    .recommended::before {
        top: -12px;
        font-size: 0.68rem;
        padding: 0.4rem 0.7rem;
    }

    .help-box {
        padding: 1.2rem 1.1rem 1.15rem;
    }

    .help-box h2 {
        max-width: none;
    }
}