/* ===================================================
   H&A Consultancy Ltd — Main Stylesheet
   =================================================== */

/* ── CSS Variables ── */
:root {
  --clr-primary:    #1a3c6e;   /* deep navy blue */
  --clr-primary-lt: #2756a0;   /* lighter navy */
  --clr-accent:     #d4a017;   /* gold */
  --clr-accent-lt:  #f0c040;
  --clr-bg:         #f8f9fc;
  --clr-bg-alt:     #eef2fa;
  --clr-white:      #ffffff;
  --clr-text:       #2d2d2d;
  --clr-text-muted: #6b7280;
  --clr-border:     #dde3ef;
  --clr-whatsapp:   #25d366;
  --clr-danger:     #dc2626;
  --clr-success:    #16a34a;

  --font-main: 'Poppins', 'Hind Siliguri', sans-serif;
  --radius-sm:   6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --shadow-sm:  0 2px 8px rgba(26,60,110,.08);
  --shadow-md:  0 6px 24px rgba(26,60,110,.14);
  --shadow-lg:  0 16px 48px rgba(26,60,110,.20);
  --transition: .3s ease;
  --nav-h:      70px;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  overflow-x: hidden;
}

body {
  font-family: var(--font-main);
  background: var(--clr-white);
  color: var(--clr-text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
button { cursor: pointer; font-family: inherit; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Typography ── */
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 700; line-height: 1.2; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

/* ── Section Shared ── */
.section {
  padding: 96px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}
.section-header p:last-child {
  color: var(--clr-text-muted);
  margin-top: 12px;
  font-size: .95rem;
}

.section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(212,160,23,.12);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: .95rem;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--clr-accent);
  color: var(--clr-primary);
}
.btn-primary:hover {
  background: var(--clr-accent-lt);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  background: transparent;
  border-color: var(--clr-white);
  color: var(--clr-white);
}
.btn-outline:hover {
  background: var(--clr-white);
  color: var(--clr-primary);
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }


/* =========================================
   NAVBAR
   ========================================= */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  width: 100%;
  height: var(--nav-h);
  background: var(--clr-primary);
  z-index: 1000;
  transition: box-shadow var(--transition), background var(--transition);
}
#navbar.scrolled {
  background: rgba(26,60,110,.97);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-ha {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-accent);
  background: rgba(212,160,23,.15);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--clr-accent);
  letter-spacing: .04em;
}
.logo-text {
  font-size: .9rem;
  font-weight: 500;
  color: var(--clr-white);
  line-height: 1.2;
  max-width: 120px;
}
.logo-white .logo-text { color: var(--clr-white); }

/* Nav Links (desktop only) */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: .88rem;
  font-weight: 500;
  color: rgba(255,255,255,.82);
  transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-white);
  background: rgba(255,255,255,.12);
}

/* ── Mobile dropdown (outside header) ── */
.mobile-menu {
  display: none;        /* hidden on desktop */
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--clr-primary);
  z-index: 999;
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  border-top: 2px solid var(--clr-accent);
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
}
.mobile-menu.open {
  max-height: 420px;
}
.mobile-nav-links {
  list-style: none;
  padding: 8px 0 12px;
}
.mobile-nav-links a {
  display: block;
  padding: 13px 24px;
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255,255,255,.88);
  border-bottom: 1px solid rgba(255,255,255,.07);
  transition: background var(--transition), color var(--transition);
}
.mobile-nav-links a:hover,
.mobile-nav-links a.active {
  background: rgba(255,255,255,.1);
  color: var(--clr-accent);
  padding-left: 30px;
}
.mobile-nav-links li:last-child a { border-bottom: none; }

/* Nav Right */
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.lang-toggle {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  color: var(--clr-white);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 600;
  transition: var(--transition);
}
.lang-toggle:hover { background: rgba(255,255,255,.22); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-sm);
  padding: 8px;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }


/* =========================================
   HERO
   ========================================= */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--clr-primary) 0%, #0d2647 60%, #1a3c6e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + 40px) 24px 80px;
  position: relative;
  overflow: hidden;
}

/* Decorative floating shapes */
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape {
  position: absolute;
  border-radius: 50%;
  opacity: .07;
  background: var(--clr-accent);
  animation: float 8s ease-in-out infinite;
}
.shape-1 { width: 400px; height: 400px; top: -100px; right: -120px; animation-delay: 0s; }
.shape-2 { width: 260px; height: 260px; bottom: 40px;  left:  -60px; animation-delay: 2.5s; }
.shape-3 { width: 180px; height: 180px; top: 60%;   right: 10%;     animation-delay: 5s; }

@keyframes float {
  0%,100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(-24px) scale(1.04); }
}

.hero-content {
  position: relative;
  max-width: 780px;
}
.hero-badge {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(212,160,23,.15);
  border: 1px solid rgba(212,160,23,.35);
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.hero-content h1 { color: var(--clr-white); margin-bottom: 20px; }
.hero-sub {
  color: rgba(255,255,255,.78);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto 36px;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid rgba(255,255,255,.35);
  border-radius: 13px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-dot {
  width: 4px;
  height: 8px;
  background: rgba(255,255,255,.6);
  border-radius: 2px;
  animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%,100% { transform: translateY(0); opacity: .8; }
  50%      { transform: translateY(12px); opacity: .2; }
}


/* =========================================
   ABOUT
   ========================================= */
.about { background: var(--clr-white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-visual {
  position: relative;
  min-height: 360px;
}

.about-card-big {
  background: linear-gradient(135deg, var(--clr-primary), #2756a0);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  color: var(--clr-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
  box-shadow: var(--shadow-lg);
}
.about-icon { font-size: 3rem; color: var(--clr-accent); }
.stat-num   { font-size: 3rem; font-weight: 700; color: var(--clr-accent); display: block; line-height: 1; }
.stat-label { font-size: .85rem; color: rgba(255,255,255,.75); margin-top: 4px; display: block; }

.about-card-small {
  position: absolute;
  background: var(--clr-white);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-md);
  font-size: .85rem;
  font-weight: 500;
  color: var(--clr-primary);
  border-left: 4px solid var(--clr-accent);
  min-width: 210px;
}
.about-card-small i { color: var(--clr-accent); font-size: 1.1rem; }
.about-card-small.top    { top: -18px; right: 0; }
.about-card-small.bottom { bottom: -16px; right: 16px; }

.about-text .section-label { margin-bottom: 8px; }
.about-text h2 { margin-bottom: 20px; color: var(--clr-primary); }
.about-text p  { color: var(--clr-text-muted); margin-bottom: 18px; }
.about-text .btn { margin-top: 8px; }


/* =========================================
   SERVICES
   ========================================= */
.services { background: var(--clr-bg); }

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

/* 5th card centred when grid has 3-col */
.services-grid .service-card:nth-child(4) { grid-column: 1; }
.services-grid .service-card:nth-child(5) { grid-column: 2; }

.service-card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 2px solid transparent;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--clr-accent);
}
.service-card.featured {
  background: linear-gradient(135deg, var(--clr-primary), #2756a0);
  color: var(--clr-white);
}
.service-card.featured p { color: rgba(255,255,255,.8); }
.service-card.featured .service-link { color: var(--clr-accent); }

.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(212,160,23,.12);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--clr-accent);
  flex-shrink: 0;
}
.featured .service-icon { background: rgba(255,255,255,.12); }

.service-card h3 { color: var(--clr-primary); font-size: 1.05rem; }
.featured h3      { color: var(--clr-white); }
.service-card p   { color: var(--clr-text-muted); font-size: .9rem; flex: 1; }

.service-link {
  color: var(--clr-primary);
  font-size: .85rem;
  font-weight: 600;
  transition: var(--transition);
  margin-top: auto;
}
.service-link:hover { color: var(--clr-accent); }


/* =========================================
   WHY US
   ========================================= */
.why-us { background: var(--clr-primary); }
.why-us .section-header p:last-child { color: rgba(255,255,255,.65); }
.why-us .section-label { color: var(--clr-accent); background: rgba(212,160,23,.15); }
.why-us h2 { color: var(--clr-white); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.why-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.why-card:hover {
  background: rgba(255,255,255,.12);
  transform: translateY(-4px);
}
.why-icon {
  width: 60px;
  height: 60px;
  background: rgba(212,160,23,.18);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--clr-accent);
  margin: 0 auto 18px;
}
.why-card h4 { color: var(--clr-white); margin-bottom: 10px; }
.why-card p  { color: rgba(255,255,255,.68); font-size: .88rem; }


/* =========================================
   TESTIMONIALS
   ========================================= */
.testimonials { background: var(--clr-bg); }

.testimonials-slider {
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 100%;
}
.testimonials-track {
  display: flex;
  transition: transform .5s ease;
}
.testimonial-card {
  min-width: 100%;
  max-width: 700px;
  margin: 0 auto;
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  box-shadow: var(--shadow-md);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.stars { font-size: 1.3rem; color: var(--clr-accent); letter-spacing: 4px; }
.testimonial-card p { color: var(--clr-text-muted); font-size: 1rem; font-style: italic; line-height: 1.8; }
.testimonial-author { display: flex; align-items: center; justify-content: center; gap: 14px; }
.author-avatar {
  width: 44px; height: 44px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}
.testimonial-author strong { display: block; color: var(--clr-primary); }
.testimonial-author span   { font-size: .82rem; color: var(--clr-text-muted); }

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 28px;
}
.slider-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--clr-white);
  border: 2px solid var(--clr-border);
  color: var(--clr-primary);
  font-size: .9rem;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.slider-btn:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}
.slider-dots { display: flex; gap: 8px; }
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--clr-border);
  cursor: pointer;
  transition: var(--transition);
}
.dot.active {
  background: var(--clr-primary);
  width: 24px;
  border-radius: 4px;
}


/* =========================================
   FAQ
   ========================================= */
.faq { background: var(--clr-white); }

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--clr-accent); }

.faq-question {
  width: 100%;
  background: var(--clr-white);
  border: none;
  padding: 20px 24px;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 600;
  font-size: .95rem;
  color: var(--clr-primary);
  transition: var(--transition);
}
.faq-question:hover { background: var(--clr-bg); }
.faq-item.open .faq-question { background: var(--clr-bg); color: var(--clr-accent); }
.faq-question i {
  flex-shrink: 0;
  font-size: .85rem;
  color: var(--clr-text-muted);
  transition: transform var(--transition);
}
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--clr-accent); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
}
.faq-answer p {
  padding: 0 24px 20px;
  color: var(--clr-text-muted);
  font-size: .92rem;
  line-height: 1.75;
}
.faq-item.open .faq-answer { max-height: 400px; }


/* =========================================
   CONTACT
   ========================================= */
.contact { background: var(--clr-bg); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 18px; }
.contact-info-card {
  background: var(--clr-white);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--clr-accent);
  transition: var(--transition);
}
.contact-info-card:hover { transform: translateX(4px); }
.contact-info-card > i {
  font-size: 1.3rem;
  color: var(--clr-accent);
  margin-top: 2px;
  flex-shrink: 0;
}
.contact-info-card h4 { color: var(--clr-primary); font-size: .88rem; margin-bottom: 4px; }
.contact-info-card p  { color: var(--clr-text-muted); font-size: .88rem; }
.contact-info-card a  { color: var(--clr-primary); font-weight: 500; transition: var(--transition); }
.contact-info-card a:hover { color: var(--clr-accent); }

.map-wrapper {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-top: 4px;
}

/* Form */
.contact-form-wrapper {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-md);
}

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.form-group label {
  font-size: .84rem;
  font-weight: 600;
  color: var(--clr-primary);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: .9rem;
  color: var(--clr-text);
  background: var(--clr-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 4px rgba(26,60,110,.08);
  background: var(--clr-white);
}
.form-group input.error,
.form-group textarea.error { border-color: var(--clr-danger); }
.form-group textarea { resize: vertical; min-height: 130px; }

#submitBtn { margin-top: 4px; gap: 10px; }
#submitBtn:disabled { opacity: .6; cursor: not-allowed; }

/* Toast */
.toast {
  margin-top: 16px;
  padding: 0;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  font-weight: 500;
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
}
.toast.show {
  max-height: 80px;
  padding: 12px 16px;
}
.toast.success { background: #dcfce7; color: var(--clr-success); border-left: 4px solid var(--clr-success); }
.toast.error   { background: #fee2e2; color: var(--clr-danger);  border-left: 4px solid var(--clr-danger); }


/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: #0d1f3c;
  color: rgba(255,255,255,.75);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1.4fr;
  gap: 40px;
  padding-bottom: 56px;
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: .88rem; line-height: 1.75; max-width: 260px; }

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.75);
  font-size: .95rem;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--clr-accent);
  color: var(--clr-primary);
  border-color: var(--clr-accent);
}

.footer-links h4, .footer-contact h4 {
  color: var(--clr-white);
  font-size: .9rem;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--clr-accent);
  display: inline-block;
}
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--clr-accent); padding-left: 4px; }

.footer-contact p {
  font-size: .88rem;
  margin-bottom: 12px;
  display: flex;
  gap: 10px;
}
.footer-contact i { color: var(--clr-accent); margin-top: 2px; flex-shrink: 0; }
.footer-contact a { color: rgba(255,255,255,.65); transition: var(--transition); }
.footer-contact a:hover { color: var(--clr-accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .82rem;
  color: rgba(255,255,255,.45);
}


/* =========================================
   WHATSAPP FLOAT & BACK TO TOP
   ========================================= */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 56px;
  height: 56px;
  background: var(--clr-whatsapp);
  color: var(--clr-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 20px rgba(37,211,102,.45);
  z-index: 999;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}
.whatsapp-float:hover {
  transform: scale(1.12);
  box-shadow: 0 6px 28px rgba(37,211,102,.55);
}
.whatsapp-tooltip {
  position: absolute;
  right: 66px;
  background: rgba(0,0,0,.78);
  color: #fff;
  font-size: .78rem;
  font-weight: 500;
  white-space: nowrap;
  padding: 5px 12px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.whatsapp-float:hover .whatsapp-tooltip { opacity: 1; }

.back-to-top {
  position: fixed;
  bottom: 94px;
  right: 28px;
  width: 42px;
  height: 42px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border: none;
  border-radius: 50%;
  font-size: .9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  z-index: 998;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover { background: var(--clr-accent); color: var(--clr-primary); }


/* =========================================
   RESPONSIVE
   ========================================= */

/* Tablet ≤ 1024px */
@media (max-width: 1024px) {
  .about-grid    { grid-template-columns: 1fr; gap: 48px; }
  .about-visual  { min-height: 280px; max-width: 480px; margin: 0 auto; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid .service-card:nth-child(4),
  .services-grid .service-card:nth-child(5) { grid-column: auto; }
  .why-grid      { grid-template-columns: repeat(2, 1fr); }
  .footer-grid   { grid-template-columns: repeat(2, 1fr); }
}

/* Tablet ≤ 768px */
@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .section { padding: 72px 0; }

  /* Hide desktop nav, show hamburger & mobile dropdown */
  .nav-links   { display: none; }
  .hamburger   { display: flex; }
  .mobile-menu { display: block; }

  .lang-toggle { padding: 5px 12px; font-size: .8rem; }

  .contact-grid     { grid-template-columns: 1fr; }
  .testimonial-card { padding: 32px 24px; }

  /* keep about cards fully inside viewport */
  .about-card-small.top    { top: 8px;  right: 8px; }
  .about-card-small.bottom { bottom: 8px; right: 8px; }
  .about-card-small { min-width: unset; max-width: calc(100% - 16px); }
}

/* Mobile ≤ 480px */
@media (max-width: 480px) {
  :root { --nav-h: 60px; }

  .nav-container { padding: 0 14px; gap: 8px; }

  .logo-ha   { font-size: 1.2rem; padding: 2px 8px; }
  .logo-text { font-size: .75rem; max-width: 86px; }

  .lang-toggle { padding: 4px 9px; font-size: .75rem; }

  .services-grid { grid-template-columns: 1fr; }
  .why-grid      { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; }
  .hero-btns     { flex-direction: column; align-items: stretch; width: 100%; max-width: 280px; margin: 0 auto; }
  .contact-form-wrapper { padding: 24px 16px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  /* about section: stack cards inside box */
  .about-visual  { min-height: auto; }
  .about-card-small { position: static; margin-top: 12px; max-width: 100%; }
  .about-card-small.top,
  .about-card-small.bottom { top: auto; right: auto; bottom: auto; }
}

/* Mobile ≤ 360px */
@media (max-width: 360px) {
  .logo-text   { display: none; }
  .lang-toggle { padding: 4px 7px; font-size: .7rem; min-width: 48px; }
}