/* ==========================================================================
   Office Partition Experts — Main Stylesheet
   Matches design mockups: navy / teal / glassmorphism corporate look
   ========================================================================== */

:root {
  --navy: #002B5B;
  --navy-deep: #001a38;
  --blue: #1a6fb5;
  --blue-bright: #2b8fd6;
  --teal: #00A3AD;
  --green: #4CAF50;
  --gold: #c9a227;
  --gold-light: #e8c547;
  --text: #333;
  --text-muted: #555;
  --bg-soft: #f0f4f8;
  --bg-lighter: #f7f9fc;
  --white: #ffffff;
  --shadow: 0 8px 30px rgba(0, 43, 91, 0.12);
  --shadow-sm: 0 4px 16px rgba(0, 43, 91, 0.08);
  --radius: 16px;
  --radius-lg: 28px;
  --font-display: "Montserrat", sans-serif;
  --font-body: "Open Sans", sans-serif;
  --header-h: 72px;
  --max: 1180px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.25;
  margin: 0 0 0.5em;
  color: var(--navy);
}

.ope-container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

.ope-section-title {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 700;
  color: var(--navy);
}

.ope-section-lead {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.5rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.ope-title-line {
  width: 64px;
  height: 3px;
  background: var(--navy);
  margin: 0 auto 2.5rem;
  position: relative;
}

.ope-title-line::after {
  content: "";
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--navy);
}

.ope-title-line--left {
  margin: 0 0 2rem;
}

.ope-accent-line {
  width: 80px;
  height: 3px;
  background: var(--teal);
  margin: 0 0 1.25rem;
}

.ope-accent-line--navy {
  background: var(--navy);
  margin-bottom: 2rem;
}

.ope-btn {
  display: inline-block;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.95rem 2rem;
  border-radius: 999px;
  transition: background 0.25s, transform 0.2s;
}

.ope-btn:hover {
  background: var(--blue);
  transform: translateY(-2px);
}

/* ---------- Header ---------- */
.ope-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 43, 91, 0.08);
  transition: background 0.3s, box-shadow 0.25s, border-color 0.3s;
}

.ope-header--transparent {
  background: transparent;
  backdrop-filter: none;
  border-bottom-color: transparent;
}

.ope-header--transparent .ope-logo-text,
.ope-header--transparent .ope-nav a:not(.ope-nav-cta) {
  color: var(--navy-deep);
  text-shadow: 0 1px 0 rgba(255,255,255,0.35);
}

.ope-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  border-bottom-color: rgba(0, 43, 91, 0.08);
}

.ope-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.ope-logo-link {
  display: inline-flex;
  align-items: center;
}

.ope-logo-img {
  height: 52px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}

.ope-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ope-header__phone {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--navy);
  white-space: nowrap;
}

.ope-header__phone svg {
  width: 18px;
  height: 18px;
}

.ope-header--transparent .ope-header__phone {
  color: var(--navy-deep);
}

@media (min-width: 769px) {
  .ope-header__actions .ope-nav-toggle {
    display: none;
  }
  .ope-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
  }
  .ope-header__actions {
    order: 3;
  }
  .ope-nav {
    order: 2;
    justify-self: end;
    margin-right: 1rem;
  }
}

.ope-logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--navy);
}

.ope-logo-text span {
  color: var(--blue);
}

.ope-header .custom-logo-link img {
  max-height: 48px;
  width: auto;
}

.ope-nav ul {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.1rem;
  flex-wrap: wrap;
}

.ope-nav a {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--navy);
  opacity: 0.85;
  transition: opacity 0.2s, color 0.2s;
}

.ope-nav a:hover {
  opacity: 1;
  color: var(--blue);
}

.ope-nav a.is-active {
  color: var(--blue);
  opacity: 1;
}

.ope-nav-cta {
  background: var(--navy) !important;
  color: var(--white) !important;
  opacity: 1 !important;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
}

.ope-header--transparent .ope-nav-cta {
  box-shadow: 0 6px 20px rgba(0, 43, 91, 0.25);
}

.ope-nav-cta:hover {
  background: var(--blue) !important;
}

.ope-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}

.ope-nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  transition: 0.25s;
}

/* ---------- 1. Hero ---------- */
.ope-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-color: #dce8f4;
  padding: calc(var(--header-h) + 40px) 24px 80px;
}

.ope-hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.12) 0%, rgba(10,40,80,0.18) 100%),
    radial-gradient(ellipse at center, transparent 30%, rgba(0,30,60,0.2) 100%);
  pointer-events: none;
}

.ope-hero__box {
  position: relative;
  z-index: 1;
  text-align: center;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 40px;
  padding: clamp(2rem, 5vw, 3.5rem) clamp(2rem, 6vw, 5rem);
  box-shadow: 0 20px 60px rgba(0, 43, 91, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.6);
  max-width: 820px;
}

.ope-hero__brand {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
}

.ope-hero__box h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--navy-deep);
  margin: 0;
  letter-spacing: -0.02em;
}

.ope-hero__divider {
  position: relative;
  width: 180px;
  height: 1px;
  background: var(--navy);
  margin: 1.25rem auto;
}

.ope-hero__diamond {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  background: var(--navy);
  transform: translate(-50%, -50%) rotate(45deg);
}

.ope-hero__sub {
  margin: 0 0 1.5rem;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 500;
  color: #3a3a3a;
}

.ope-btn--hero {
  border-radius: 999px;
  padding: 0.85rem 1.75rem;
}

/* ---------- 2. TOC ---------- */
.ope-toc {
  position: relative;
  background: linear-gradient(135deg, #e8f1fa 0%, #f5f8fc 55%, #eef4fa 100%);
  overflow: hidden;
  padding: 80px 0;
}

.ope-toc__bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 100%;
  background-size: cover;
  background-position: center left;
  mask-image: linear-gradient(90deg, transparent 0%, #000 25%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 25%);
}

.ope-toc__inner {
  position: relative;
  z-index: 1;
}

.ope-toc__content {
  max-width: 640px;
}

.ope-toc__title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 0.75rem;
}

.ope-toc__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.ope-toc__list::before {
  content: "";
  position: absolute;
  right: 23px;
  top: 28px;
  bottom: 28px;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    #8eb0d4 0 4px,
    transparent 4px 8px
  );
  z-index: 0;
  pointer-events: none;
}

.ope-toc__list li {
  border-bottom: 1px solid rgba(0, 43, 91, 0.12);
}

.ope-toc__list a {
  display: grid;
  grid-template-columns: 42px 1fr 52px;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 0;
  transition: transform 0.2s;
}

.ope-toc__list a:hover {
  transform: translateX(6px);
}

.ope-toc__num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--navy);
  background: var(--white);
}

.ope-toc__label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy);
  line-height: 1.35;
}

.ope-toc__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid #c5d8ef;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 1;
}

.ope-toc__icon::before {
  content: "";
  position: absolute;
  left: -18px;
  width: 16px;
  height: 0;
  border-top: 2px dotted #8eb0d4;
}

.ope-toc__icon svg {
  width: 26px;
  height: 26px;
}

/* ---------- 3. Challenge ---------- */
.ope-challenge {
  position: relative;
  min-height: 620px;
}

.ope-challenge__sides {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 620px;
}

.ope-challenge__side {
  position: relative;
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  padding: 2rem 2rem 0;
  overflow: hidden;
}

.ope-challenge__dim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20,30,50,0.55) 0%, rgba(10,15,25,0.75) 100%);
}

.ope-challenge__bright {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.15) 0%, rgba(200,220,240,0.25) 100%);
}

.ope-pill {
  position: relative;
  z-index: 2;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--white);
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
}

.ope-pill--dark { background: var(--navy); }
.ope-pill--blue { background: var(--blue-bright); align-self: flex-end; }

.ope-challenge__copy {
  position: relative;
  z-index: 2;
  margin-top: auto;
  margin-bottom: 140px;
  padding: 0 1rem;
}

.ope-challenge__side--right .ope-challenge__copy {
  text-align: right;
}

.ope-challenge__copy h3 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  color: var(--white);
  margin: 0 0 0.4rem;
}

.ope-challenge__copy--light h3 {
  color: var(--navy);
}

.ope-challenge__copy p {
  margin: 0;
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
  max-width: 320px;
}

.ope-challenge__copy--light p {
  color: var(--navy);
  margin-left: auto;
}

.ope-challenge__bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  padding: 1.1rem 1rem;
}

.ope-challenge__bar--dark { background: rgba(40, 45, 55, 0.92); }
.ope-challenge__bar--light { background: rgba(200, 215, 230, 0.92); }

.ope-challenge__feat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.25;
}

.ope-challenge__bar--dark .ope-challenge__feat { color: var(--white); }
.ope-challenge__bar--light .ope-challenge__feat { color: var(--navy); }

.ope-challenge__feat-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ope-challenge__feat-icon svg {
  width: 22px;
  height: 22px;
}

.ope-challenge__center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  width: min(92vw, 420px);
  background: var(--white);
  border: 2px solid #a8c4e0;
  /* Octagon-ish via clip — soft rounded fallback */
  clip-path: polygon(8% 0%, 92% 0%, 100% 12%, 100% 88%, 92% 100%, 8% 100%, 0% 88%, 0% 12%);
  border-radius: 8px;
  padding: 2rem 1.75rem 1.5rem;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 43, 91, 0.25);
}

.ope-challenge__center h2 {
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
  line-height: 1.3;
}

.ope-challenge__center-line {
  height: 1px;
  background: #c5d4e5;
  margin: 0 0 1.25rem;
}

.ope-challenge__pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.ope-challenge__pillars div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--navy);
}

.ope-challenge__pillars svg {
  width: 32px;
  height: 32px;
  color: var(--navy);
}

.ope-challenge__tagline {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ---------- 4–5. Core services ---------- */
.ope-core {
  position: relative;
  padding: 90px 0 70px;
  background: linear-gradient(90deg, #f4f8fc 0%, #eef4fa 40%, transparent 70%);
  overflow: hidden;
}

.ope-core__photo {
  position: absolute;
  top: 0;
  right: 0;
  width: 58%;
  height: 70%;
  background-size: cover;
  background-position: center;
  mask-image: linear-gradient(90deg, transparent, #000 20%);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 20%);
  opacity: 0.95;
}

.ope-core__photo--right {
  left: 0;
  right: auto;
  mask-image: linear-gradient(270deg, transparent, #000 20%);
  -webkit-mask-image: linear-gradient(270deg, transparent, #000 20%);
}

.ope-core--acoustic {
  background: linear-gradient(270deg, #f4f8fc 0%, #eef4fa 40%, transparent 70%);
}

.ope-core .ope-container {
  position: relative;
  z-index: 1;
}

.ope-core__intro {
  max-width: 480px;
  margin-bottom: 2.5rem;
}

.ope-core__intro--right {
  margin-left: auto;
  text-align: left;
}

.ope-core__eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--navy);
  margin: 0 0 0.25rem;
}

.ope-core__intro h2 {
  font-size: clamp(1.4rem, 2.8vw, 1.9rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.ope-core__text {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
  margin: 0;
}

.ope-core__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.ope-glass-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(180, 205, 230, 0.7);
  border-radius: 18px;
  padding: 1.35rem 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s, box-shadow 0.25s;
}

.ope-glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.ope-glass-card__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ope-glass-card__icon svg {
  width: 26px;
  height: 26px;
}

.ope-glass-card h3 {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin: 0 0 0.35rem;
}

.ope-glass-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ---------- 6. Specialized ---------- */
.ope-specialized {
  padding: 90px 0;
  background: var(--bg-lighter);
}

.ope-svc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.ope-svc-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--white);
  border: 1px solid #d8e4f0;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  min-height: 240px;
  transition: box-shadow 0.25s, transform 0.25s;
}

.ope-svc-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.ope-svc-card__img {
  background: #dce6f0;
  min-height: 200px;
}

.ope-svc-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ope-svc-card__img--placeholder,
.ope-placeholder {
  height: 100%;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #d0dce8, #e8eef5);
}

.ope-placeholder span {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
  opacity: 0.55;
  text-align: center;
  padding: 1rem;
  border: 2px dashed rgba(0, 43, 91, 0.25);
  border-radius: 8px;
}

.ope-svc-card__body {
  padding: 1.35rem 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ope-svc-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.ope-svc-card__icon svg {
  width: 20px;
  height: 20px;
}

.ope-svc-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.65rem;
}

.ope-svc-card ul {
  list-style: disc;
  padding-left: 1.1rem;
}

.ope-svc-card li {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
  line-height: 1.4;
}

/* ---------- 7. Benefits ---------- */
.ope-benefits {
  padding: 90px 0;
  background: linear-gradient(180deg, #e8f0f8 0%, #f2f6fa 100%);
}

.ope-benefits__title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.ope-benefits__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.5rem;
  align-items: stretch;
}

.ope-benefits__left {
  position: relative;
  border-radius: var(--radius);
  background-size: cover;
  background-position: center;
  background-color: #c5d8ec;
  min-height: 520px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.ope-benefits__left--plain {
  background-image: none;
  background: linear-gradient(145deg, #d6e6f5 0%, #b8cee6 100%);
}

.ope-benefits__left::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,30,60,0.15), rgba(0,30,60,0.45));
}

.ope-benefits__left--plain::before {
  background: linear-gradient(135deg, rgba(0,43,91,0.08), rgba(0,43,91,0.2));
}

.ope-benefits__list {
  position: relative;
  z-index: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.ope-benefits__list li {
  display: grid;
  grid-template-columns: 28px 44px 1fr;
  gap: 0.65rem;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-radius: 14px;
  padding: 0.95rem 1rem;
  box-shadow: var(--shadow-sm);
}

.ope-check {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--blue);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.ope-benefits__item-icon svg {
  width: 36px;
  height: 36px;
}

.ope-benefits__list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--navy);
  margin-bottom: 0.2rem;
}

.ope-benefits__list p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.ope-benefits__right {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ope-stat-card {
  background: linear-gradient(160deg, #003366 0%, #002050 100%);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  color: var(--white);
  text-align: center;
  box-shadow: var(--shadow);
}

.ope-stat-card__icon {
  margin-bottom: 1rem;
}

.ope-stat-card__icon svg {
  width: 64px;
  height: 64px;
  margin: 0 auto;
  filter: drop-shadow(0 0 12px rgba(126, 200, 255, 0.5));
}

.ope-stat-card__row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: left;
}

.ope-stat-card__num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
}

.ope-stat-card__label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

.ope-stat-card hr {
  border: 0;
  border-top: 1px solid rgba(255,255,255,0.35);
  margin: 1.25rem 0;
}

.ope-stat-card__source {
  margin: 1.25rem 0 0;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  opacity: 0.85;
}

.ope-space-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid #d8e4f0;
}

.ope-space-card h3 {
  text-align: center;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.ope-space-card__compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: center;
}

.ope-space-card__col {
  text-align: center;
}

.ope-space-card__visual {
  height: 100px;
  margin: 0 auto 0.75rem;
  border-radius: 6px;
}

.ope-space-card__visual--glass {
  width: 28px;
  background: linear-gradient(90deg, #c8dff5, #e8f4ff 40%, #a8c8e8);
  border: 1px solid #7aabdb;
  box-shadow: 0 0 12px rgba(100, 160, 220, 0.4);
}

.ope-space-card__visual--stud {
  width: 72px;
  background:
    repeating-linear-gradient(90deg, #c4b8a0 0 8px, #e8e0d0 8px 14px),
    #d4c8b0;
  border: 1px solid #a89880;
}

.ope-space-card__tag {
  display: block;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #777;
  margin-bottom: 0.35rem;
}

.ope-space-card__tag--blue { color: var(--blue); }

.ope-space-card__size {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: #666;
  margin-bottom: 0.35rem;
}

.ope-space-card__size--blue { color: var(--blue); }

.ope-space-card__col p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.ope-space-card__save {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
  box-shadow: 0 0 0 6px rgba(0, 43, 91, 0.12);
  position: relative;
}

.ope-space-card__save::before,
.ope-space-card__save::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 18px;
  border-top: 2px dashed var(--navy);
}

.ope-space-card__save::before { right: 100%; margin-right: 4px; }
.ope-space-card__save::after { left: 100%; margin-left: 4px; }

.ope-space-card__save strong {
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
}

/* ---------- 8. Process ---------- */
.ope-process {
  padding: 90px 0;
  background: var(--bg-soft);
}

.ope-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.ope-steps__line {
  position: absolute;
  top: 52px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: var(--navy);
  z-index: 0;
}

.ope-steps__line::before,
.ope-steps__line::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--navy);
  transform: translateY(-50%);
}

.ope-steps__line::before { left: 33%; }
.ope-steps__line::after { left: 66%; }

.ope-step {
  position: relative;
  z-index: 1;
  text-align: center;
}

.ope-step__circle {
  position: relative;
  width: 104px;
  height: 104px;
  border-radius: 50%;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 43, 91, 0.2);
  border: 4px solid var(--white);
}

.ope-step__circle--navy { background: var(--navy); }
.ope-step__circle--teal { background: var(--teal); }
.ope-step__circle--green { background: var(--green); }
.ope-step__circle--blue { background: var(--blue-bright); }

.ope-step__circle svg {
  width: 44px;
  height: 44px;
}

.ope-step__badge {
  position: absolute;
  top: -4px;
  left: -4px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid currentColor;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.ope-step__circle--teal .ope-step__badge { color: var(--teal); border-color: var(--teal); }
.ope-step__circle--green .ope-step__badge { color: var(--green); border-color: var(--green); }
.ope-step__circle--blue .ope-step__badge { color: var(--blue-bright); border-color: var(--blue-bright); }

.ope-step h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.ope-step p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.ope-process__values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(0, 43, 91, 0.12);
}

.ope-process__value {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
}

.ope-process__value svg {
  width: 40px;
  height: 40px;
}

/* ---------- 9. Partner ---------- */
.ope-partner {
  position: relative;
  padding: 90px 0 70px;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-color: #e8f1fa;
}

.ope-partner--plain {
  background-image: none;
  background-attachment: scroll;
  background: linear-gradient(180deg, #eef5fc 0%, #dceaf6 100%);
}

.ope-partner__veil {
  position: absolute;
  inset: 0;
  background: rgba(240, 248, 255, 0.88);
  backdrop-filter: blur(2px);
}

.ope-partner--plain .ope-partner__veil {
  background: transparent;
  backdrop-filter: none;
}

.ope-partner__inner {
  position: relative;
  z-index: 1;
}

.ope-partner__layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

.ope-partner__col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ope-partner-card {
  background: var(--white);
  border-radius: 14px;
  padding: 1.35rem 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(200, 220, 240, 0.8);
}

.ope-partner-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.ope-partner-card__icon svg {
  width: 24px;
  height: 24px;
}

.ope-partner-card h3 {
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin-bottom: 0.45rem;
}

.ope-partner-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.ope-partner__shield {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
}

.ope-shield {
  width: 180px;
  height: 210px;
  background: linear-gradient(160deg, #1a3a6a 0%, #0a1e3d 100%);
  clip-path: polygon(50% 0%, 95% 12%, 95% 55%, 50% 100%, 5% 55%, 5% 12%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  box-shadow: 0 0 0 6px var(--gold), 0 12px 40px rgba(0,0,0,0.25);
  position: relative;
  z-index: 2;
  padding: 2rem 1rem 2.5rem;
}

.ope-shield__stars {
  color: var(--gold-light);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.ope-shield p {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  line-height: 1.35;
}

.ope-shield__line {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--gold);
  margin-top: 0.75rem;
}

.ope-shield__base {
  width: 140px;
  height: 28px;
  margin-top: -8px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.95) 0%, rgba(180,210,240,0.6) 60%, transparent 70%);
  box-shadow: 0 0 30px 10px rgba(150, 200, 255, 0.45);
  z-index: 1;
}

.ope-partner__bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(0, 43, 91, 0.15);
}

.ope-partner__bar > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--navy);
}

.ope-partner__bar svg {
  width: 32px;
  height: 32px;
  color: var(--navy);
}

/* ---------- CTA ---------- */
.ope-cta {
  padding: 70px 0;
  background: linear-gradient(135deg, var(--navy) 0%, #003d7a 100%);
  color: var(--white);
  text-align: center;
}

.ope-cta h2 {
  color: var(--white);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  margin-bottom: 0.5rem;
}

.ope-cta p {
  margin: 0 0 1.5rem;
  opacity: 0.9;
}

.ope-cta .ope-btn {
  background: var(--white);
  color: var(--navy);
}

.ope-cta .ope-btn:hover {
  background: #e8f2ff;
}

/* ---------- Contact ---------- */
.ope-contact {
  padding: 90px 0;
  background: var(--bg-lighter);
}

.ope-contact__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2.5rem;
  align-items: start;
}

.ope-contact__info h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.ope-contact__info > p {
  color: var(--text-muted);
  margin: 0 0 1.75rem;
  max-width: 380px;
}

.ope-contact__details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ope-contact__details li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1rem 1.15rem;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid #d8e4f0;
  box-shadow: var(--shadow-sm);
}

.ope-contact__details strong {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
}

.ope-contact__form-wrap {
  background: var(--white);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid #d8e4f0;
  box-shadow: var(--shadow);
}

.ope-contact__form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ope-contact__form label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
}

.ope-contact__form input,
.ope-contact__form textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  padding: 0.85rem 1rem;
  border: 1px solid #c5d4e5;
  border-radius: 10px;
  background: #f8fbfe;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.ope-contact__form input:focus,
.ope-contact__form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26, 111, 181, 0.15);
  background: var(--white);
}

.ope-contact__form .ope-btn {
  border: 0;
  cursor: pointer;
  margin-top: 0.5rem;
  align-self: flex-start;
}

.ope-alert {
  padding: 0.85rem 1rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  font-size: 0.92rem;
}

.ope-alert--ok {
  background: #e8f7ec;
  color: #1b5e20;
  border: 1px solid #a5d6a7;
}

.ope-alert--err {
  background: #fdecea;
  color: #8b1a1a;
  border: 1px solid #f5c2c0;
}

.ope-svc-card__img img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

/* ---------- Footer ---------- */
.ope-footer {
  background: var(--navy-deep);
  color: rgba(255,255,255,0.85);
  padding: 40px 0;
}

.ope-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.ope-footer__brand strong {
  font-family: var(--font-display);
  color: var(--white);
  font-size: 1.05rem;
}

.ope-footer__logo {
  height: 64px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.25));
}

.ope-footer__brand p {
  margin: 0.2rem 0 0;
  font-size: 0.85rem;
  opacity: 0.7;
}

.ope-footer__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
}

.ope-footer__contact a:hover {
  color: var(--white);
}

.ope-social {
  display: flex;
  gap: 0.65rem;
  align-items: center;
}

.ope-social__link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
}

.ope-social__link:hover {
  background: var(--teal);
  transform: translateY(-2px);
}

.ope-social__link svg {
  width: 18px;
  height: 18px;
}

.ope-footer__copy {
  width: 100%;
  margin: 1rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  opacity: 0.55;
}

/* ---------- Floating WhatsApp ---------- */
.ope-whatsapp {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1100;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.45);
  transition: transform 0.2s, box-shadow 0.2s;
}

.ope-whatsapp:hover {
  transform: scale(1.06);
  box-shadow: 0 14px 32px rgba(37, 211, 102, 0.55);
}

.ope-whatsapp svg {
  width: 32px;
  height: 32px;
  position: relative;
  z-index: 1;
}

.ope-whatsapp__pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25D366;
  animation: ope-wa-pulse 2s ease-out infinite;
  z-index: 0;
}

@keyframes ope-wa-pulse {
  0% { transform: scale(1); opacity: 0.7; }
  70% { transform: scale(1.55); opacity: 0; }
  100% { transform: scale(1.55); opacity: 0; }
}

/* ---------- Animations ---------- */
@keyframes ope-fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.ope-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.ope-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .ope-nav ul { gap: 0.25rem 0.75rem; }
  .ope-nav a { font-size: 0.72rem; }

  .ope-challenge__center {
    width: min(88vw, 360px);
    padding: 1.5rem 1.25rem;
  }

  .ope-core__cards { grid-template-columns: 1fr; max-width: 520px; }
  .ope-svc-grid { grid-template-columns: 1fr; }
  .ope-benefits__grid { grid-template-columns: 1fr; }
  .ope-steps { grid-template-columns: 1fr 1fr; gap: 2rem 1.5rem; }
  .ope-steps__line { display: none; }
  .ope-process__values { grid-template-columns: 1fr 1fr; }
  .ope-partner__layout { grid-template-columns: 1fr; }
  .ope-partner__shield { order: -1; margin-bottom: 0.5rem; }
  .ope-partner__bar { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .ope-toc__bg { opacity: 0.25; width: 100%; mask-image: none; -webkit-mask-image: none; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }

  .ope-nav-toggle { display: flex; }

  .ope-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    padding: 1rem;
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
  }

  .ope-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .ope-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .ope-nav li {
    border-bottom: 1px solid rgba(0,43,91,0.08);
  }

  .ope-nav a {
    display: block;
    padding: 0.85rem 0.5rem;
    font-size: 0.9rem;
  }

  .ope-nav-cta {
    text-align: center;
    margin-top: 0.5rem;
  }

  .ope-hero {
    min-height: 85vh;
    padding-top: calc(var(--header-h) + 24px);
  }

  .ope-hero__box {
    border-radius: 24px;
    padding: 2rem 1.5rem;
  }

  .ope-challenge__sides {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .ope-challenge__side {
    min-height: 420px;
  }

  .ope-challenge__center {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
    width: calc(100% - 32px);
    margin: -40px auto;
    clip-path: none;
    border-radius: 16px;
  }

  .ope-challenge {
    display: flex;
    flex-direction: column;
  }

  .ope-challenge__sides { order: 1; }
  .ope-challenge__center { order: 2; margin: -30px auto 30px; z-index: 5; }

  .ope-core__photo {
    position: relative;
    width: 100%;
    height: 220px;
    mask-image: none;
    -webkit-mask-image: none;
    margin-bottom: 1.5rem;
  }

  .ope-core { padding-top: 0; }
  .ope-core .ope-container { padding-top: 1.5rem; }

  .ope-svc-card {
    grid-template-columns: 1fr;
  }

  .ope-svc-card__img { min-height: 180px; }

  .ope-benefits__list li {
    grid-template-columns: 26px 1fr;
  }

  .ope-benefits__item-icon { display: none; }

  .ope-space-card__compare {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .ope-space-card__save {
    margin: 0 auto;
  }

  .ope-space-card__save::before,
  .ope-space-card__save::after {
    display: none;
  }

  .ope-steps { grid-template-columns: 1fr; }
  .ope-process__values { grid-template-columns: 1fr 1fr; }
  .ope-partner__bar { grid-template-columns: 1fr 1fr; }
  .ope-partner { background-attachment: scroll; }

  .ope-contact__grid {
    grid-template-columns: 1fr;
  }

  .ope-toc__list a {
    grid-template-columns: 36px 1fr;
  }

  .ope-toc__icon { display: none; }

  .ope-toc__list::before { display: none; }
}

@media (max-width: 480px) {
  .ope-challenge__bar {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .ope-challenge__feat {
    flex-direction: row;
    justify-content: flex-start;
    text-align: left;
    gap: 0.75rem;
  }

  .ope-process__values,
  .ope-partner__bar {
    grid-template-columns: 1fr;
  }

  .ope-stat-card__num { font-size: 2.4rem; }
}