/* Olisan SpA — sitio institucional
   Paleta basada en el logo (teal #176B7B) y el tríptico (verde oliva #6B7A1F).
*/

:root {
    --color-teal:        #176B7B;
    --color-teal-dark:   #0F4F5C;
    --color-teal-deep:   #0A3A45;
    --color-teal-soft:   #E5F0F2;
    --color-olive:       #6B7A1F;
    --color-olive-dark:  #525F18;
    --color-olive-soft:  #F1F2DF;
    --color-ink:         #1A1F1F;
    --color-text:        #2D3536;
    --color-muted:       #5A6566;
    --color-line:        #E1E5E6;
    --color-bg:          #FFFFFF;
    --color-bg-alt:      #F7F9F9;
    --color-bg-dark:     #0F4F5C;

    --radius-sm: 6px;
    --radius:    12px;
    --radius-lg: 20px;

    --shadow-sm: 0 1px 2px rgba(15, 79, 92, 0.08), 0 2px 6px rgba(15, 79, 92, 0.06);
    --shadow:    0 4px 12px rgba(15, 79, 92, 0.10), 0 16px 32px rgba(15, 79, 92, 0.08);

    --container: 1180px;
    --gutter: clamp(20px, 4vw, 40px);

    --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;

    --transition: 180ms ease;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a {
    color: var(--color-teal);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--color-teal-dark); text-decoration: underline; }

h1, h2, h3, h4 {
    color: var(--color-ink);
    line-height: 1.18;
    margin: 0 0 0.5em;
    letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }
h4 { font-size: 0.95rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }

p { margin: 0 0 1em; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-teal);
    color: #fff;
    padding: 10px 16px;
    z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; outline: 3px solid var(--color-olive); }

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(140%) blur(8px);
    -webkit-backdrop-filter: saturate(140%) blur(8px);
    border-bottom: 1px solid var(--color-line);
}
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 68px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    color: var(--color-ink);
    letter-spacing: 0.02em;
    font-size: 1.15rem;
}
.brand img {
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}
.brand em { font-style: normal; color: var(--color-teal); font-weight: 700; }
.brand:hover { text-decoration: none; }

.nav-links {
    display: flex;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
    flex-wrap: wrap;
}
.nav-links a {
    color: var(--color-text);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}
.nav-links a:hover { background: var(--color-teal-soft); color: var(--color-teal-dark); text-decoration: none; }
.nav-links a.cta {
    background: var(--color-teal);
    color: #fff;
    padding: 9px 16px;
    margin-left: 8px;
}
.nav-links a.cta:hover { background: var(--color-teal-dark); }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: clamp(48px, 8vw, 96px) 0 clamp(56px, 9vw, 120px);
    background:
        radial-gradient(ellipse at top right, rgba(23, 107, 123, 0.12), transparent 55%),
        radial-gradient(ellipse at bottom left, rgba(107, 122, 31, 0.10), transparent 55%),
        linear-gradient(180deg, #FBFCFC 0%, #F0F5F6 100%);
    overflow: hidden;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: clamp(32px, 6vw, 72px);
    align-items: center;
}
.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--color-olive-dark);
    margin: 0 0 0.75rem;
}
.lead {
    font-size: clamp(1.05rem, 1.8vw, 1.2rem);
    color: var(--color-muted);
    max-width: 56ch;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.catalogo-banner {
    display: block;
    margin-top: 32px;
    max-width: 560px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}
.catalogo-banner img {
    display: block;
    width: 100%;
    height: auto;
}
.catalogo-banner:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    text-decoration: none;
}
.catalogo-banner:focus-visible {
    outline: 3px solid var(--color-olive);
    outline-offset: 3px;
}

.hero-art { position: relative; }
.hero-card {
    background: var(--color-teal);
    border-radius: var(--radius-lg);
    padding: clamp(24px, 4vw, 48px);
    box-shadow: var(--shadow);
    aspect-ratio: 1 / 1;
    max-width: 420px;
    margin-left: auto;
    display: grid;
    place-items: center;
    transform: rotate(-2deg);
    transition: transform 400ms ease;
}
.hero-card:hover { transform: rotate(0deg); }
.hero-card img { filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.18)); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.98rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition);
    text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 3px solid var(--color-olive); outline-offset: 2px; }

.btn-primary { background: var(--color-teal); color: #fff; }
.btn-primary:hover { background: var(--color-teal-dark); color: #fff; }

.btn-ghost { background: transparent; color: var(--color-teal-dark); border-color: var(--color-teal); }
.btn-ghost:hover { background: var(--color-teal-soft); color: var(--color-teal-dark); }

.btn-block { width: 100%; }

/* ---------- Sections ---------- */
.section {
    padding: clamp(56px, 8vw, 96px) 0;
}
.section-alt { background: var(--color-bg-alt); }
.section-dark {
    background: linear-gradient(135deg, var(--color-teal-deep) 0%, var(--color-teal) 100%);
    color: #E8F2F4;
}

.section-head { max-width: 760px; margin: 0 0 48px; }
.section-head-light h2,
.section-head-light .eyebrow { color: #fff; }
.section-head-light .eyebrow { color: #C9E5EA; }
.section-sub { color: var(--color-muted); font-size: 1.05rem; max-width: 60ch; }

.section-dark .section-sub { color: #C9E5EA; }

/* ---------- Nosotros ---------- */
.grid-2 {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: clamp(28px, 5vw, 56px);
    align-items: start;
}
.prose p { color: var(--color-muted); }
.feature-list {
    list-style: none;
    margin: 0; padding: 0;
    display: grid;
    gap: 16px;
}
.feature-list li {
    background: #fff;
    border: 1px solid var(--color-line);
    border-left: 4px solid var(--color-olive);
    border-radius: var(--radius);
    padding: 18px 22px;
    box-shadow: var(--shadow-sm);
}
.feature-list h3 { margin-bottom: 4px; }
.feature-list p { margin: 0; color: var(--color-muted); }

/* ---------- Productos ---------- */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 22px;
}
.card {
    background: #fff;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 6px;
    background: var(--color-teal);
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: rgba(23, 107, 123, 0.25);
}
.card-icon {
    width: 64px; height: 64px;
    border-radius: var(--radius);
    background: var(--color-teal-soft);
    color: var(--color-teal);
    display: grid; place-items: center;
    margin-bottom: 18px;
}
.card h3 { margin-bottom: 4px; font-size: 1.35rem; }
.card-tag {
    color: var(--color-olive-dark);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 12px;
}
.card p { color: var(--color-muted); flex: 1; }
.card-link {
    margin-top: 16px;
    font-weight: 600;
    color: var(--color-teal-dark);
    align-self: flex-start;
}
.card-link:hover { text-decoration: underline; }

.card-treesoft::before { background: var(--color-olive); }
.card-treesoft .card-icon { background: var(--color-olive-soft); color: var(--color-olive-dark); }

.card-libro::before { background: var(--color-teal); }
.card-nmp::before { background: linear-gradient(90deg, var(--color-teal) 0%, var(--color-olive) 100%); }

/* ---------- Municipalidades ---------- */
.muni-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}
.muni-grid > div {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius);
    padding: 22px;
}
.muni-grid h3 { color: #fff; margin-bottom: 6px; }
.muni-grid p { color: #C9E5EA; margin: 0; }

/* ---------- Contacto ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: clamp(28px, 5vw, 48px);
    align-items: start;
}
.contact-info {
    background: var(--color-teal-soft);
    border-radius: var(--radius);
    padding: 28px;
}
.contact-info h3 { color: var(--color-teal-deep); }
.contact-list {
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
    display: grid;
    gap: 12px;
}
.contact-list li {
    display: grid;
    grid-template-columns: 90px 1fr;
    align-items: center;
    gap: 10px;
}
.contact-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-teal-dark);
    font-weight: 700;
}

.contact-form {
    background: #fff;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    display: grid;
    gap: 18px;
}
.field { display: grid; gap: 6px; }
.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-ink);
}
.req { color: var(--color-olive-dark); }
input[type="text"], input[type="email"], input[type="tel"], textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--color-line);
    border-radius: var(--radius-sm);
    background: #fff;
    font: inherit;
    color: var(--color-ink);
    transition: border-color var(--transition), box-shadow var(--transition);
}
textarea { resize: vertical; min-height: 120px; }
input:focus, textarea:focus {
    outline: none;
    border-color: var(--color-teal);
    box-shadow: 0 0 0 4px rgba(23, 107, 123, 0.15);
}
input[aria-invalid="true"], textarea[aria-invalid="true"] {
    border-color: #B53D2C;
    box-shadow: 0 0 0 4px rgba(181, 61, 44, 0.12);
}
.field-error {
    margin: 0;
    font-size: 0.85rem;
    color: #B53D2C;
    font-weight: 500;
}

.hp {
    position: absolute;
    left: -10000px;
    width: 1px; height: 1px;
    overflow: hidden;
}

.form-status {
    margin: 0;
    font-size: 0.95rem;
    min-height: 1.4em;
}
.form-status.is-success { color: var(--color-olive-dark); font-weight: 600; }
.form-status.is-error { color: #B53D2C; font-weight: 600; }
.form-status.is-warning { color: #8A6A1A; font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-teal-deep);
    color: #C9E5EA;
    padding: 56px 0 24px;
    margin-top: auto;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr repeat(2, 1fr);
    gap: 32px;
    align-items: start;
}
.site-footer h4 { color: #fff; margin-bottom: 12px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.site-footer a { color: #C9E5EA; }
.site-footer a:hover { color: #fff; }
.site-footer p { margin: 12px 0 0; color: #C9E5EA; }

.footer-bottom {
    margin-top: 32px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 0.85rem;
    color: #9DC2C9;
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-card { transform: none; max-width: 320px; margin: 0 auto; }
    .grid-2 { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
    .nav-links { gap: 2px; }
    .nav-links a { padding: 6px 8px; font-size: 0.92rem; }
    .nav-links a.cta { padding: 8px 14px; }
    .field-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .hero-card { transform: none !important; transition: none; }
    .btn:hover { transform: none; }
    .card:hover { transform: none; }
}