:root {
    --red:      #d11919;
    --amber:    #d17b19;
    --dark:     #0a0a0a;
    --surface:  #141414;
    --surface2: #1a1a1a;
    --light:    #ffffff;
    --muted:    rgba(255,255,255,0.6);
    --line:     rgba(209,25,25,0.18);
    --grad:     linear-gradient(135deg, #d11919 0%, #d17b19 100%);
    --ease:     cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Roboto', sans-serif;
    background: var(--dark);
    color: var(--light);
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
strong { color: var(--red); font-weight: 600; }

/* ══════════════════════════════
   HEADER
══════════════════════════════ */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    background: rgba(10,10,10,0.96);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 4px 24px rgba(0,0,0,0.5);
    position: sticky; top: 0; z-index: 100;
    height: 80px;
}

.logo img {
    height: 200px;
    object-fit: contain;
    transition: transform 0.25s var(--ease);
    filter: drop-shadow(0 0 8px rgba(209,25,25,0.2));
}
.logo:hover img { transform: scale(1.04); }

.nav { display: flex; gap: 0.5rem; align-items: center; }

.nav-link {
    display: flex; align-items: center; gap: 0.45rem;
    padding: 0.6rem 1.2rem;
    font-size: 0.88rem; font-weight: 500;
    letter-spacing: 0.3px;
    border-radius: 50px;
    position: relative; overflow: hidden;
    transition: color 0.2s, transform 0.2s;
    color: rgba(255,255,255,0.75);
}
.nav-link::before {
    content: '';
    position: absolute; inset: 0; border-radius: 50px;
    background: var(--grad);
    opacity: 0;
    transition: opacity 0.2s;
}
.nav-link span, .nav-link i { position: relative; z-index: 1; }
.nav-link i { font-size: 1.1rem; }

.nav-link:hover, .nav-link.active {
    color: #fff;
    transform: translateY(-2px);
}
.nav-link:hover::before, .nav-link.active::before { opacity: 1; }

/* ══════════════════════════════
   PAGE HERO
══════════════════════════════ */
.page-hero {
    position: relative;
    height: 55vh; min-height: 420px;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    text-align: center;
    overflow: hidden;
    background:
        linear-gradient(to bottom, rgba(10,10,10,0.55) 0%, rgba(10,10,10,0.92) 100%),
        url('/images/casas.webp') center/cover no-repeat;
}

/* grain overlay */
.page-hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    background-size: 180px;
    pointer-events: none; opacity: 0.5; z-index: 1;
}

/* glow ambiental */
.page-hero::after {
    content: '';
    position: absolute; bottom: -40px; left: 50%;
    transform: translateX(-50%);
    width: 50%; height: 200px;
    background: radial-gradient(ellipse at center, rgba(209,25,25,0.12) 0%, transparent 70%);
    pointer-events: none; z-index: 1;
}

.page-hero-content {
    position: relative; z-index: 2;
    animation: fadeUp 0.9s 0.2s var(--ease) both;
}
@keyframes fadeUp {
    from { opacity:0; transform: translateY(28px); }
    to   { opacity:1; transform: none; }
}

.page-hero-badge {
    display: inline-block;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 4px; text-transform: uppercase;
    color: var(--red);
    border: 1px solid rgba(209,25,25,0.4);
    padding: 0.35rem 1.1rem; border-radius: 50px;
    margin-bottom: 1.4rem;
    background: rgba(209,25,25,0.08);
}

.page-hero-content h1 {
    font-size: clamp(2.2rem, 6vw, 4.2rem);
    font-weight: 900; line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}
.page-hero-content h1 .accent {
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.page-hero-content p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--muted); font-weight: 300;
    letter-spacing: 0.3px;
}

.page-hero-scroll {
    position: absolute; bottom: 1.8rem; left: 50%;
    transform: translateX(-50%);
    z-index: 2; color: var(--red); font-size: 1.4rem;
    animation: bounce 1.8s ease-in-out infinite;
}
@keyframes bounce {
    0%,100% { transform: translateX(-50%) translateY(0); }
    50%      { transform: translateX(-50%) translateY(8px); }
}

/* ══════════════════════════════
   SECTIONS
══════════════════════════════ */
.section { padding: 5rem 5%; }
.section-dark {
    background: var(--surface);
    border-top: 1px solid rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

.container { max-width: 1100px; margin: 0 auto; }

.section-label {
    display: flex; align-items: center; gap: 0.8rem;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 4px; text-transform: uppercase;
    color: var(--red); margin-bottom: 1.2rem;
}
.label-line {
    display: block; width: 28px; height: 1.5px;
    background: var(--red);
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 900; letter-spacing: -0.5px;
    margin-bottom: 3rem; line-height: 1.1;
}

/* ══════════════════════════════
   SPLIT LAYOUT — QUEM SOMOS
══════════════════════════════ */
.split-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: start;
}

.split-text h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 900; margin-bottom: 1.4rem;
    letter-spacing: -0.5px;
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}
.split-text p {
    font-size: 1rem; line-height: 1.8;
    color: rgba(255,255,255,0.75);
    font-weight: 300; margin-bottom: 1.1rem;
}

/* mini cards */
.split-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.mini-card {
    background: var(--surface2);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 14px;
    padding: 1.4rem 1.2rem;
    display: flex; flex-direction: column; gap: 0.4rem;
    transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s;
}
.mini-card:hover {
    border-color: rgba(209,25,25,0.4);
    transform: translateY(-5px);
    box-shadow: 0 14px 32px rgba(209,25,25,0.12);
}
.mini-card i {
    font-size: 1.5rem; color: var(--red); margin-bottom: 0.3rem;
}
.mini-card strong {
    font-size: 0.95rem; font-weight: 700; color: #fff;
}
.mini-card span {
    font-size: 0.78rem; color: var(--muted); line-height: 1.4;
}

/* ══════════════════════════════
   VALUES GRID
══════════════════════════════ */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
}
.value-card {
    background: rgba(20,20,20,0.8);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s;
}
.value-card:hover {
    border-color: rgba(209,25,25,0.35);
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(209,25,25,0.12);
}
.value-icon {
    width: 56px; height: 56px;
    background: var(--grad);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; color: #fff;
    margin: 0 auto 1.2rem;
    box-shadow: 0 8px 20px rgba(209,25,25,0.35);
}
.value-card h3 {
    font-size: 1.05rem; font-weight: 700;
    margin-bottom: 0.7rem; color: #fff;
}
.value-card p {
    font-size: 0.85rem; color: var(--muted);
    line-height: 1.65; font-weight: 300;
}

/* ══════════════════════════════
   SERVICES LIST
══════════════════════════════ */
.services-list {
    display: flex; flex-direction: column; gap: 1px;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px; overflow: hidden;
}
.service-row {
    display: grid;
    grid-template-columns: 70px 1fr auto;
    gap: 1.5rem;
    align-items: center;
    padding: 1.8rem 2rem;
    background: var(--surface2);
    border-bottom: 1px solid rgba(255,255,255,0.04);
    transition: background 0.25s, transform 0.25s var(--ease);
    position: relative;
}
.service-row:last-child { border-bottom: none; }
.service-row::before {
    content: '';
    position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--grad);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s var(--ease);
}
.service-row:hover { background: rgba(26,26,26,0.98); }
.service-row:hover::before { transform: scaleY(1); }

.service-num {
    font-size: 2.2rem; font-weight: 900;
    color: rgba(209,25,25,0.15);
    -webkit-text-stroke: 1px rgba(209,25,25,0.25);
    line-height: 1;
    transition: color 0.3s, -webkit-text-stroke 0.3s;
}
.service-row:hover .service-num {
    color: rgba(209,25,25,0.25);
    -webkit-text-stroke: 1px rgba(209,25,25,0.5);
}
.service-info h3 {
    font-size: 1.05rem; font-weight: 700;
    margin-bottom: 0.45rem; color: #fff;
    display: flex; align-items: center; gap: 0.6rem;
}
.service-info h3 i { color: var(--red); font-size: 1rem; }
.service-info p {
    font-size: 0.88rem; color: var(--muted);
    line-height: 1.65; font-weight: 300;
}
.service-tags {
    display: flex; flex-direction: column; gap: 0.4rem;
    align-items: flex-end; flex-shrink: 0;
}
.service-tags span {
    font-size: 0.68rem; font-weight: 700;
    letter-spacing: 1px; text-transform: uppercase;
    padding: 0.25rem 0.7rem; border-radius: 50px;
    background: rgba(209,25,25,0.1);
    border: 1px solid rgba(209,25,25,0.3);
    color: rgba(209,25,25,0.9);
    white-space: nowrap;
}

/* ══════════════════════════════
   CTA SECTION
══════════════════════════════ */
.cta-section {
    padding: 5rem 5%;
    background: var(--dark);
    text-align: center;
    position: relative; overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse 70% 60% at 50% 100%, rgba(209,25,25,0.1) 0%, transparent 70%);
    pointer-events: none;
}
.cta-section h2 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 900; line-height: 1.15;
    margin-bottom: 1rem; letter-spacing: -0.5px;
    position: relative; z-index: 1;
}
.cta-section p {
    font-size: 1rem; color: var(--muted);
    font-weight: 300; margin-bottom: 2.2rem;
    position: relative; z-index: 1;
}
.btn-cta {
    display: inline-flex; align-items: center; gap: 0.7rem;
    padding: 1rem 2.4rem;
    background: #25d366; color: #fff;
    font-size: 1rem; font-weight: 700;
    letter-spacing: 0.5px; border-radius: 50px;
    border: none; cursor: pointer;
    box-shadow: 0 8px 28px rgba(37,211,102,0.3);
    transition: transform 0.25s var(--ease), box-shadow 0.25s;
    position: relative; z-index: 1;
}
.btn-cta:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 36px rgba(37,211,102,0.45);
}
.btn-cta i { font-size: 1.2rem; }

/* ══════════════════════════════
   FOOTER
══════════════════════════════ */
.footer {
    background: rgba(10,10,10,0.98);
    border-top: 1px solid var(--line);
    padding: 1.5rem 5%;
}
.footer-content {
    max-width: 1100px; margin: 0 auto;
    display: flex; justify-content: center; align-items: center;
    flex-direction: column; gap: 1rem;
}
.footer-content p {
    font-size: 0.82rem; color: rgba(255,255,255,0.35); text-align: center;
}
.footer-social { display: flex; gap: 0.8rem; }
.footer-social a {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(209,25,25,0.08);
    border: 1px solid rgba(209,25,25,0.25);
    border-radius: 50%; color: var(--red); font-size: 1rem;
    transition: all 0.22s var(--ease);
}
.footer-social a:hover {
    background: var(--grad); color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 5px 14px rgba(209,25,25,0.3);
}

/* ══════════════════════════════
   SCROLL REVEAL
══════════════════════════════ */
.sr {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.sr.in { opacity: 1; transform: none; }
.sr-d1 { transition-delay: 0.1s; }
.sr-d2 { transition-delay: 0.2s; }
.sr-d3 { transition-delay: 0.3s; }
.sr-d4 { transition-delay: 0.4s; }

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */
@media (max-width: 968px) {
    .split-layout { grid-template-columns: 1fr; gap: 2.5rem; }
    .values-grid  { grid-template-columns: repeat(2, 1fr); }
    .service-row  { grid-template-columns: 50px 1fr; }
    .service-tags { display: none; }
    .logo img { height: 140px; }
}

@media (max-width: 600px) {
    .header { height: auto; padding: 0.6rem 4%; flex-direction: column; gap: 0.5rem; }
    .logo img { height: 110px; }
    .nav { gap: 0.3rem; }
    .nav-link { padding: 0.5rem 0.9rem; font-size: 0.82rem; }
    .page-hero { height: 60vh; }
    .section { padding: 3.5rem 4%; }
    .values-grid { grid-template-columns: 1fr; }
    .split-cards { grid-template-columns: 1fr; }
    .service-row { grid-template-columns: 1fr; padding: 1.4rem 1.2rem; }
    .service-num { font-size: 1.5rem; }
}