/* ============================================
   GESSO DRYWALL SÃO PAULO — Design System
   Referência: DESIGN.md (Planpoint Architectural Aesthetic)
   White Canvas · Inter Typography · Pill Geometry · Monochromatic + Signal Blue
   Mobile-First & Touch-Optimized
   ============================================ */

:root {
  /* --- Colors from DESIGN.md --- */
  --color-ink: #1d1d1f;
  --color-white: #ffffff;
  --color-mist: #f0f2f4;
  --color-fog: #e5e6e8;
  --color-carbon: #000000;
  --color-slate: #333333;
  --color-midnight: #00051a;
  --color-signal-blue: #0f68ea;
  --color-link-blue: #007aff;
  --color-highlight: #ffcb00;
  --color-deep-navy: #000a3b;
  --color-whatsapp: #25d366;
  --color-whatsapp-dark: #128c7e;

  /* --- Typography --- */
  --font-inter: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* --- Type Scale & Tracking from DESIGN.md --- */
  --text-caption: 14px;
  --leading-caption: 1.5;
  --tracking-caption: -0.98px;

  --text-body-sm: 16px;
  --leading-body-sm: 1.6;
  --tracking-body-sm: -1.07px;

  --text-body: 18px;
  --leading-body: 1.55;
  --tracking-body: -1.17px;

  --text-subheading: 22px;
  --leading-subheading: 1.3;
  --tracking-subheading: -1.32px;

  --text-heading-sm: 29px;
  --leading-heading-sm: 1.25;
  --tracking-heading-sm: -1.28px;

  --text-heading: 43px;
  --leading-heading: 1.15;
  --tracking-heading: -1.55px;

  --text-heading-lg: 50px;
  --leading-heading-lg: 1.1;
  --tracking-heading-lg: -1.65px;

  --text-display: 64px;
  --leading-display: 1.05;
  --tracking-display: -2.23px;

  /* --- Spacing --- */
  --spacing-4: 4px;
  --spacing-8: 8px;
  --spacing-12: 12px;
  --spacing-16: 16px;
  --spacing-20: 20px;
  --spacing-28: 28px;
  --spacing-40: 40px;
  --spacing-64: 64px;
  --spacing-80: 80px;
  --spacing-108: 108px;

  /* --- Layout --- */
  --page-max-width: 1200px;
  --section-gap: 88px;
  --header-height: 76px;

  /* --- Border Radius from DESIGN.md --- */
  --radius-tags: 46.8px;
  --radius-cards: 28.8px;
  --radius-badges: 100px;
  --radius-inputs: 18px;
  --radius-buttons: 100px;
  --radius-images: 18px;
  --radius-2xl: 20px;

  /* --- Shadows from DESIGN.md --- */
  --shadow-xl: rgba(0, 0, 0, 0.06) 0px 8px 48px 0px;
  --shadow-hover: rgba(0, 0, 0, 0.1) 0px 14px 44px 0px;
  --shadow-subtle: 0 2px 10px rgba(0, 0, 0, 0.03);

  /* --- Transitions --- */
  --transition-fast: 0.18s ease;
  --transition-base: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-inter);
  background-color: var(--color-white);
  color: var(--color-ink);
  line-height: var(--leading-body);
  font-size: var(--text-body-sm);
  overflow-x: hidden;
  letter-spacing: -0.2px;
  width: 100%;
  position: relative;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--page-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ============================================
   TYPOGRAPHY & SECTION HEADERS
   ============================================ */
.section-header {
  margin-bottom: 56px;
}

.section-header--center {
  text-align: center;
}

.section-header--center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-family: var(--font-inter);
  font-size: clamp(1.85rem, 3.8vw, var(--text-heading));
  font-weight: 700;
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin-top: 14px;
  margin-bottom: 16px;
  word-wrap: break-word;
}

.section-subtitle {
  font-size: var(--text-body);
  font-weight: 400;
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  color: var(--color-slate);
  max-width: 640px;
}

/* Novelty / Status Badge (from DESIGN.md) */
.badge-highlight {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-highlight);
  color: var(--color-ink);
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: -0.4px;
  padding: 4px 16px;
  border-radius: var(--radius-badges);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.badge-subtle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-mist);
  color: var(--color-ink);
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: -0.3px;
  padding: 6px 16px;
  border-radius: var(--radius-badges);
  border: 1px solid var(--color-fog);
}

/* ============================================
   BUTTONS (100px Pill Geometry from DESIGN.md)
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-inter);
  font-size: var(--text-body-sm);
  font-weight: 600;
  letter-spacing: -0.3px;
  border-radius: var(--radius-buttons);
  padding: 16px 28px;
  transition: all var(--transition-base);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  touch-action: manipulation;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Primary Pill Button (Signal Blue #0f68ea) */
.btn--primary {
  background-color: var(--color-signal-blue);
  color: var(--color-white);
  box-shadow: var(--shadow-xl);
  border: 1px solid transparent;
}

.btn--primary:hover {
  background-color: #0d59c8;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn--primary:active {
  transform: translateY(0);
}

/* WhatsApp Accent Button */
.btn--whatsapp {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.35);
  border: 1px solid transparent;
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

/* Dark Pill Button (Ink #1d1d1f) */
.btn--dark {
  background-color: var(--color-ink);
  color: var(--color-white);
  border: 1px solid transparent;
}

.btn--dark:hover {
  background-color: var(--color-signal-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn--dark:active {
  transform: translateY(0);
}

/* Outline Pill Button */
.btn--outline {
  background-color: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-fog);
}

.btn--outline:hover {
  border-color: var(--color-ink);
  background-color: var(--color-mist);
  transform: translateY(-2px);
}

/* White Outline Pill (for dark panels) */
.btn--outline-white {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn--outline-white:hover {
  border-color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* ============================================
   HEADER / NAVBAR (Clean, White Canvas)
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-fog);
  transition: all var(--transition-base);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo img {
  height: 48px;
  width: auto;
  display: block;
  transition: transform var(--transition-fast);
}

.nav__logo:hover img {
  transform: scale(1.03);
}

/* Nav Menu (Desktop) */
.nav__menu {
  display: flex;
  align-items: center;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-family: var(--font-inter);
  font-size: var(--text-body-sm);
  font-weight: 500;
  letter-spacing: -0.3px;
  color: var(--color-slate);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-signal-blue);
  transition: width var(--transition-base), left var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-ink);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
  left: 0;
}

/* Mobile-only CTA strictly hidden on desktop */
.nav__cta-mobile {
  display: none !important;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav__cta-desktop {
  padding: 12px 24px;
  font-size: 14px;
}

.nav__toggle {
  display: none;
  background: none;
  color: var(--color-ink);
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  transition: background-color var(--transition-fast);
}

.nav__toggle:hover {
  background-color: var(--color-mist);
}

.nav__close {
  display: none;
}

.nav__overlay {
  display: none;
}

/* ============================================
   HERO SECTION (Above-the-Fold & Showcase)
   ============================================ */
.hero {
  padding-top: calc(var(--header-height) + 52px);
  padding-bottom: var(--spacing-80);
  background-color: var(--color-white);
  position: relative;
}

.hero__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__badge-wrap {
  margin-bottom: 20px;
}

.hero__title {
  font-family: var(--font-inter);
  font-size: clamp(2.1rem, 4.8vw, var(--text-display));
  font-weight: 700;
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  color: var(--color-ink);
  max-width: 980px;
  margin-bottom: 20px;
  word-wrap: break-word;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, var(--text-body));
  font-weight: 400;
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  color: var(--color-slate);
  max-width: 720px;
  margin-bottom: 32px;
  word-wrap: break-word;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

/* ============================================
   INTERACTIVE TOUCH-SWIPE CAROUSEL (Hero Showcase)
   ============================================ */
.carousel {
  width: 100%;
  max-width: 1140px;
  border-radius: var(--radius-cards);
  border: 1px solid var(--color-fog);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  position: relative;
  background-color: var(--color-mist);
  aspect-ratio: 16 / 9;
  max-height: 520px;
  touch-action: pan-y pinch-zoom;
  user-select: none;
  outline: none;
}

.carousel__track-container {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.carousel__track {
  display: flex;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.carousel__slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.carousel__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 35%, rgba(0, 5, 26, 0.88) 100%);
  display: flex;
  align-items: flex-end;
  padding: 32px 36px;
  pointer-events: none;
}

.carousel__caption {
  max-width: 720px;
  text-align: left;
}

.carousel__tag {
  display: inline-block;
  background: rgba(15, 104, 234, 0.9);
  color: #ffffff;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.carousel__title {
  font-family: var(--font-inter);
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 6px;
  letter-spacing: -0.4px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
}

.carousel__sub {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.45;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
}

/* Carousel Buttons */
.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: var(--color-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
  transition: all var(--transition-fast);
  touch-action: manipulation;
}

.carousel__btn:hover {
  background-color: #ffffff;
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

.carousel__btn:active {
  transform: translateY(-50%) scale(0.96);
}

.carousel__btn svg {
  width: 20px;
  height: 20px;
}

.carousel__btn--prev {
  left: 20px;
}

.carousel__btn--next {
  right: 20px;
}

/* Carousel Footer Controls (Dots & Counter) */
.carousel__footer {
  position: absolute;
  bottom: 24px;
  right: 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 6;
}

.carousel__dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 100px;
  background-color: rgba(255, 255, 255, 0.5);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.carousel__dot:hover {
  background-color: rgba(255, 255, 255, 0.85);
}

.carousel__dot.is-active {
  width: 26px;
  background-color: #ffffff;
}

.carousel__counter {
  font-size: 12px;
  font-weight: 700;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  letter-spacing: 0.5px;
}

/* ============================================
   SERVICES SECTION (Cards Surface from DESIGN.md)
   ============================================ */
.services {
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
  background-color: var(--color-white);
  border-top: 1px solid var(--color-fog);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-fog);
  border-radius: var(--radius-cards);
  padding: 24px;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #d1d5db;
}

.service-card__image {
  border-radius: var(--radius-images);
  overflow: hidden;
  margin-bottom: 20px;
  aspect-ratio: 16 / 10;
  background-color: var(--color-mist);
}

.service-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-card__image img {
  transform: scale(1.04);
}

.service-card__tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-slate);
  background-color: var(--color-mist);
  padding: 4px 12px;
  border-radius: var(--radius-tags);
  margin-bottom: 12px;
  align-self: flex-start;
  letter-spacing: -0.2px;
}

.service-card__title {
  font-family: var(--font-inter);
  font-size: var(--text-subheading);
  font-weight: 600;
  line-height: var(--leading-subheading);
  letter-spacing: var(--tracking-subheading);
  color: var(--color-ink);
  margin-bottom: 12px;
  word-wrap: break-word;
}

.service-card__text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-slate);
  margin-bottom: 16px;
  flex-grow: 1;
}

/* ============================================
   ABOUT & STATS SECTION (Architectural Layout)
   ============================================ */
.about {
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
  background-color: var(--color-mist);
  border-top: 1px solid var(--color-fog);
  border-bottom: 1px solid var(--color-fog);
}

.about__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.about__text p {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  color: var(--color-slate);
  margin-bottom: 20px;
  word-wrap: break-word;
}

.about__text p:last-child {
  margin-bottom: 0;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.stat-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-fog);
  border-radius: var(--radius-cards);
  padding: 28px 24px;
  box-shadow: var(--shadow-xl);
  text-align: center;
  transition: transform var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-2px);
}

.stat-card__number {
  font-family: var(--font-inter);
  font-size: var(--text-heading-lg);
  font-weight: 700;
  line-height: var(--leading-heading-lg);
  letter-spacing: var(--tracking-heading-lg);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.stat-card__label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-slate);
  letter-spacing: -0.3px;
}

/* ============================================
   GALLERY SECTION (Instagram via Elfsight)
   ============================================ */
.gallery {
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
  background-color: var(--color-white);
}

.gallery__frame {
  background-color: var(--color-white);
  border: 1px solid var(--color-fog);
  border-radius: var(--radius-cards);
  padding: 32px 24px;
  box-shadow: var(--shadow-xl);
  margin-bottom: 40px;
  min-height: 380px;
  overflow: hidden;
}

.gallery__cta {
  text-align: center;
}

/* ============================================
   COVERAGE AREA (Pill Badges Grid)
   ============================================ */
.coverage {
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
  background-color: var(--color-mist);
  border-top: 1px solid var(--color-fog);
  border-bottom: 1px solid var(--color-fog);
}

.coverage__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.coverage__item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: var(--color-white);
  border: 1px solid var(--color-fog);
  border-radius: var(--radius-badges);
  padding: 16px 20px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--color-ink);
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
  word-wrap: break-word;
}

.coverage__item:hover {
  border-color: var(--color-signal-blue);
  color: var(--color-signal-blue);
  transform: translateY(-2px);
}

.coverage__item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-signal-blue);
  flex-shrink: 0;
}

/* ============================================
   FAQ SECTION (High-Value Local SEO & Rich Snippets)
   ============================================ */
.faq {
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
  background-color: var(--color-white);
  border-top: 1px solid var(--color-fog);
}

.faq__list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq__item {
  background-color: var(--color-white);
  border: 1px solid var(--color-fog);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-subtle);
}

.faq__item:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-xl);
}

.faq__item[open] {
  border-color: var(--color-signal-blue);
}

.faq__summary {
  padding: 22px 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
}

.faq__summary::-webkit-details-marker {
  display: none;
}

.faq__question {
  font-family: var(--font-inter);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 0;
  line-height: 1.4;
  letter-spacing: -0.3px;
  text-align: left;
}

.faq__icon {
  width: 20px;
  height: 20px;
  stroke: var(--color-signal-blue);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq__item[open] .faq__icon {
  transform: rotate(180deg);
}

.faq__content {
  padding: 0 28px 24px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-slate);
}

.faq__content p {
  margin-bottom: 12px;
}

.faq__content p:last-child {
  margin-bottom: 0;
}

/* ============================================
   CONTACT / CTA PANEL (Dark Surface from DESIGN.md)
   ============================================ */
.contact {
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
  background-color: var(--color-white);
}

.contact__panel {
  background-color: var(--color-deep-navy);
  border-radius: var(--radius-cards);
  padding: 64px 48px;
  color: var(--color-white);
  text-align: center;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.contact__panel::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(circle, rgba(15, 104, 234, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.contact__title {
  font-family: var(--font-inter);
  font-size: clamp(1.85rem, 3.8vw, var(--text-heading-lg));
  font-weight: 700;
  line-height: var(--leading-heading-lg);
  letter-spacing: var(--tracking-heading-lg);
  color: var(--color-white);
  margin-bottom: 16px;
  position: relative;
  word-wrap: break-word;
}

.contact__subtitle {
  font-size: var(--text-body);
  font-weight: 400;
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  margin: 0 auto 36px;
  position: relative;
}

.contact__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
  position: relative;
}

.contact__info-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  position: relative;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.contact__info-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.88);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 8px 18px;
  border-radius: var(--radius-badges);
}

.contact__info-pill svg {
  width: 15px;
  height: 15px;
  stroke: var(--color-highlight);
  flex-shrink: 0;
}

/* ============================================
   FOOTER (Clean Paper Surface)
   ============================================ */
.footer {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-fog);
  padding: 64px 0 32px;
  color: var(--color-slate);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__logo img {
  height: 48px;
  width: auto;
  display: block;
  margin-bottom: 16px;
}

.footer__description {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-slate);
  max-width: 320px;
}

.footer__heading {
  font-family: var(--font-inter);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__links a {
  font-size: 15px;
  color: var(--color-slate);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-signal-blue);
}

.footer__social {
  display: flex;
  gap: 12px;
}

.footer__social a {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--color-mist);
  border: 1px solid var(--color-fog);
  color: var(--color-ink);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background-color: var(--color-signal-blue);
  border-color: var(--color-signal-blue);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__bottom {
  border-top: 1px solid var(--color-fog);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
  color: #71717a;
}

/* ============================================
   DISCRETE FLOATING WHATSAPP BUTTON
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background-color: var(--color-whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.45);
  z-index: 999;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  touch-action: manipulation;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.6);
}

.whatsapp-float:active {
  transform: scale(0.95);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  fill: var(--color-white);
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

/* ============================================
   RESPONSIVE DESIGN (TABLETS & DESKTOPS)
   ============================================ */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .coverage__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
}

@media (max-width: 900px) {
  :root {
    --section-gap: 60px;
  }

  .nav__list {
    display: none;
  }

  .nav__cta-desktop {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  /* Slide-in Mobile Drawer */
  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-white);
    padding: 80px 28px 32px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
    transition: right var(--transition-base);
    z-index: 1001;
  }

  .nav__menu.show-menu {
    right: 0;
  }

  .nav__close {
    display: flex;
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 20px;
    color: var(--color-ink);
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background-color: var(--color-mist);
  }

  .nav__list {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    width: 100%;
    margin-bottom: 28px;
  }

  .nav__link {
    font-size: 18px;
    width: 100%;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-fog);
  }

  .nav__link::after {
    display: none;
  }

  .nav__menu.show-menu .nav__cta-mobile {
    display: block !important;
    width: 100%;
  }

  .nav__cta-mobile .btn {
    width: 100%;
  }

  .nav__overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 1000;
  }

  .nav__overlay.show-overlay {
    opacity: 1;
    visibility: visible;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .coverage__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   RESPONSIVE DESIGN (SMARTPHONES & MOBILE OPTIMIZATIONS)
   Zero overflow · Above-The-Fold CTAs · Touch-Swipe Carousel
   ============================================ */
@media (max-width: 768px) {
  :root {
    --header-height: 62px;
    --section-gap: 52px;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .nav__logo img {
    height: 38px;
  }

  /* Compact Hero: Ensures CTAs are 100% visible Above-the-fold */
  .hero {
    padding-top: calc(var(--header-height) + 12px);
    padding-bottom: 36px;
  }

  .hero__badge-wrap {
    margin-bottom: 10px;
  }

  .badge-highlight {
    font-size: 11px;
    padding: 4px 12px;
    letter-spacing: -0.2px;
  }

  .hero__title {
    font-size: clamp(1.55rem, 5.8vw, 2.1rem);
    line-height: 1.15;
    letter-spacing: -0.8px;
    margin-bottom: 10px;
    padding: 0 4px;
  }

  .hero__subtitle {
    font-size: 14px;
    line-height: 1.45;
    letter-spacing: -0.3px;
    margin-bottom: 16px;
    padding: 0 6px;
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
    max-width: 380px;
    gap: 10px;
    margin-bottom: 24px;
  }

  .hero__actions .btn {
    width: 100%;
    padding: 14px 20px;
    font-size: 15px;
    justify-content: center;
  }

  /* Touch-Swipe Carousel on Mobile */
  .carousel {
    aspect-ratio: 4 / 3;
    max-height: 360px;
    border-radius: 20px;
  }

  .carousel__overlay {
    padding: 16px 16px 38px;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 25%, rgba(0, 5, 26, 0.92) 100%);
  }

  .carousel__caption {
    max-width: 100%;
  }

  .carousel__tag {
    font-size: 10px;
    padding: 3px 10px;
    margin-bottom: 4px;
  }

  .carousel__title {
    font-size: 16px;
    line-height: 1.22;
    margin-bottom: 4px;
  }

  .carousel__sub {
    font-size: 12px;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .carousel__btn {
    width: 36px;
    height: 36px;
  }

  .carousel__btn--prev {
    left: 8px;
  }

  .carousel__btn--next {
    right: 8px;
  }

  .carousel__footer {
    bottom: 12px;
    right: 12px;
    left: 12px;
    justify-content: space-between;
  }

  .carousel__dot {
    width: 6px;
    height: 6px;
  }

  .carousel__dot.is-active {
    width: 20px;
  }

  .carousel__counter {
    font-size: 11px;
    padding: 2px 8px;
  }

  /* Services Grid */
  .services {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section-title {
    font-size: 1.7rem;
    line-height: 1.2;
    margin-top: 10px;
    margin-bottom: 10px;
  }

  .section-subtitle {
    font-size: 14.5px;
    line-height: 1.5;
  }

  .services__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-card {
    padding: 20px;
    border-radius: 20px;
  }

  .service-card__image {
    aspect-ratio: 16 / 10;
    margin-bottom: 14px;
    border-radius: 14px;
  }

  .service-card__tag {
    font-size: 11.5px;
    padding: 3px 10px;
    margin-bottom: 8px;
  }

  .service-card__title {
    font-size: 19px;
    line-height: 1.28;
    margin-bottom: 8px;
  }

  .service-card__text {
    font-size: 14px;
    line-height: 1.55;
    margin-bottom: 12px;
  }

  /* About & Stats Section */
  .about {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .about__text p {
    font-size: 15px;
    line-height: 1.55;
    margin-bottom: 14px;
  }

  .about__stats {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px;
  }

  .stat-card {
    padding: 18px 12px;
    border-radius: 18px;
  }

  .stat-card__number {
    font-size: 28px;
    line-height: 1.15;
    margin-bottom: 4px;
  }

  .stat-card__label {
    font-size: 12px;
    line-height: 1.3;
  }

  /* Gallery Section */
  .gallery {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .gallery__frame {
    padding: 16px 12px;
    border-radius: 20px;
    min-height: 320px;
    margin-bottom: 24px;
  }

  .gallery__cta .btn {
    width: 100%;
    max-width: 360px;
    font-size: 14px;
    padding: 14px 18px;
  }

  /* Coverage Area 2-column Compact layout */
  .coverage {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .coverage__grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px;
  }

  .coverage__item {
    padding: 10px 10px;
    font-size: 12px;
    line-height: 1.25;
    gap: 6px;
    border-radius: 12px;
    text-align: left;
    justify-content: flex-start;
  }

  .coverage__item svg {
    width: 14px;
    height: 14px;
  }

  /* FAQ Accordion */
  .faq {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .faq__list {
    gap: 10px;
  }

  .faq__summary {
    padding: 16px 16px;
  }

  .faq__question {
    font-size: 15px;
    line-height: 1.35;
  }

  .faq__icon {
    width: 18px;
    height: 18px;
    margin-left: 10px;
  }

  .faq__content {
    padding: 0 16px 18px;
    font-size: 13.5px;
    line-height: 1.55;
  }

  /* Contact CTA panel */
  .contact {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .contact__panel {
    padding: 36px 18px;
    border-radius: 24px;
  }

  .contact__title {
    font-size: clamp(1.4rem, 4.8vw, 1.85rem);
    line-height: 1.2;
    margin-bottom: 12px;
  }

  .contact__subtitle {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 24px;
  }

  .contact__actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
    margin-bottom: 32px;
  }

  .contact__actions .btn {
    width: 100%;
    justify-content: center;
    padding: 14px 20px;
  }

  .contact__info-row {
    flex-direction: column;
    gap: 8px;
    width: 100%;
    padding-top: 24px;
  }

  .contact__info-pill {
    width: 100%;
    justify-content: center;
    padding: 10px 14px;
    font-size: 12.5px;
  }

  /* Footer */
  .footer {
    padding: 48px 0 24px;
  }

  .footer__grid {
    gap: 28px;
    margin-bottom: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
  }

  /* WhatsApp Floating Button */
  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
  }

  .whatsapp-float svg {
    width: 26px;
    height: 26px;
  }
}

/* ============================================
   EXTRA-SMALL SMARTPHONES (iPhone SE, 360px)
   ============================================ */
@media (max-width: 480px) {
  .hero__title {
    font-size: 1.55rem;
  }

  .hero__subtitle {
    font-size: 13.5px;
  }

  .carousel {
    aspect-ratio: 1 / 1;
    max-height: 300px;
    border-radius: 16px;
  }

  .carousel__title {
    font-size: 14.5px;
  }

  .carousel__sub {
    font-size: 11.5px;
  }

  .coverage__item {
    font-size: 11px;
    padding: 8px 8px;
  }

  .stat-card__number {
    font-size: 24px;
  }
}