/* ============================================
   DR. AICHA BIHA — Design System & Styles
   ============================================ */

/* === VARIABLES === */
:root {
  --color-primary:        #5E1A36;
  --color-primary-dark:   #3D0F22;
  --color-primary-light:  #8B2E52;
  --color-secondary:      #D63478;
  --color-secondary-dark: #A02259;
  --color-secondary-light:#E86CA0;
  --color-accent-pale:    #FFB8D4;
  --color-white:          #FFFFFF;

  --color-bg-app:         #FEF7FA;
  --color-bg-card:        #FFFFFF;
  --color-bg-input:       #FDF0F5;
  --color-bg-hover:       #F5E0EA;
  --color-border:         #F0D8E4;
  --color-border-strong:  #E0B8CC;

  --color-text-primary:   #5E1A36;
  --color-text-secondary: #8B4A65;
  --color-text-muted:     #B890A2;
  --color-text-on-dark:   #FFFFFF;
  --color-text-on-dark-2: #FFB8D4;

  --color-success:        #1A7A4A;
  --color-error:          #C0263A;
  --color-warning:        #B86A10;
  --color-info:           #1A5AA0;

  --font-display:  'Nunito', Arial, sans-serif;
  --font-body:     'Nunito', Arial, sans-serif;
  --font-label:    'Montserrat', Arial, sans-serif;

  --text-xs:    11px;
  --text-sm:    13px;
  --text-base:  16px;
  --text-md:    17px;
  --text-lg:    21px;
  --text-xl:    26px;
  --text-2xl:   32px;
  --text-3xl:   40px;

  --leading-tight:  1.2;
  --leading-normal: 1.6;

  --tracking-wide:   0.08em;
  --tracking-wider:  0.16em;
  --tracking-widest: 0.28em;

  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  --shadow-sm:  0 1px 3px rgba(94,26,54,0.08), 0 1px 2px rgba(94,26,54,0.06);
  --shadow-md:  0 4px 12px rgba(94,26,54,0.10), 0 2px 6px rgba(94,26,54,0.08);
  --shadow-lg:  0 8px 24px rgba(94,26,54,0.13), 0 4px 10px rgba(94,26,54,0.08);
  --shadow-xl:  0 16px 40px rgba(94,26,54,0.16);

  --max-width: 1200px;
  --header-height: 72px;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  background: var(--color-bg-app);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: var(--color-secondary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--color-secondary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* === CONTAINER === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* === BUTTONS === */
.btn-primary, .btn-secondary, .btn-accent {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  line-height: 1.4;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-bg-hover);
  color: var(--color-primary);
}
.btn-accent {
  background: var(--color-secondary);
  color: var(--color-white);
}
.btn-accent:hover {
  background: var(--color-secondary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}
.btn-sm {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
}
.badge-primary { background: rgba(94,26,54,0.10); color: var(--color-primary); }
.badge-accent  { background: rgba(214,52,120,0.12); color: var(--color-secondary-dark); }

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(254, 247, 250, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
  height: var(--header-height);
}
.header.scrolled {
  background: rgba(255,255,255,0.95);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}
.header-logo img { height: 44px; }
.nav {
  display: flex;
  gap: var(--space-8);
}
.nav-link {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-1) 0;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  border-radius: 1px;
  transition: width 0.2s ease;
}
.nav-link:hover, .nav-link.active { color: var(--color-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.lang-switch {
  font-family: var(--font-label);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  padding: var(--space-1) var(--space-3);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}
.lang-switch:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   HERO
   ============================================ */
.hero {
  padding-top: calc(var(--header-height) + var(--space-16));
  padding-bottom: var(--space-16);
  background: linear-gradient(135deg, var(--color-bg-app) 0%, #FFF0F5 50%, var(--color-bg-app) 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(214,52,120,0.06) 0%, transparent 70%);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-label);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
  background: rgba(214,52,120,0.08);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  letter-spacing: 0.02em;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  color: var(--color-primary);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-3);
}
.hero-subtitle {
  font-family: var(--font-label);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-secondary);
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-6);
}
.hero-text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-image-wrapper {
  width: 380px;
  height: 380px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-white);
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 2;
}
.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-image-decoration {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(214,52,120,0.06) 0%, rgba(94,26,54,0.03) 60%, transparent 70%);
  z-index: 1;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: var(--space-16) 0;
}
.section-alt {
  background: var(--color-white);
}
.section-label {
  display: block;
  font-family: var(--font-label);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
  text-align: center;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, var(--text-3xl));
  font-weight: 800;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--space-4);
  line-height: var(--leading-tight);
}
.section-subtitle {
  text-align: center;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-12);
}

/* ============================================
   TRUST BANNER
   ============================================ */
.trust-banner {
  background: var(--color-primary);
  padding: var(--space-5) 0;
}
.trust-inner {
  display: flex;
  justify-content: center;
  gap: var(--space-10);
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  white-space: nowrap;
}
.trust-item svg {
  color: var(--color-accent-pale);
  min-width: 24px;
}

/* ============================================
   ABOUT
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-12);
  margin-top: var(--space-10);
  align-items: start;
}
.about-text p {
  margin-bottom: var(--space-4);
  line-height: 1.8;
}
.about-text strong {
  color: var(--color-primary);
  font-weight: 700;
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.stat-card:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-1);
}
.stat-label {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* ============================================
   SERVICES
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}
.service-card {
  background: var(--color-bg-app);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.service-card:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(214,52,120,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-secondary);
}
.service-title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.service-desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Featured service cards */
.services-primary {
  margin-bottom: var(--space-6);
}
.service-card-featured {
  border-color: var(--color-border-strong);
  background: var(--color-white);
}
.service-card-featured .service-icon {
  background: rgba(214,52,120,0.12);
}
.service-card-featured .badge {
  margin-top: var(--space-3);
}
.services-secondary .service-card {
  padding: var(--space-6);
}
.services-secondary .service-desc {
  font-size: var(--text-sm);
}

/* ============================================
   SCHEDULE
   ============================================ */
.schedule-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  max-width: 700px;
  margin: 0 auto var(--space-8);
}
.schedule-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition: all 0.2s ease;
}
.schedule-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.schedule-card-accent {
  border-color: var(--color-secondary);
  background: linear-gradient(135deg, #FFF5F9 0%, var(--color-white) 100%);
}
.schedule-icon {
  color: var(--color-secondary);
  margin-bottom: var(--space-4);
}
.schedule-period {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.schedule-time {
  font-family: var(--font-body);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-2);
}
.schedule-type {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}
.schedule-days {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}
.day {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-label);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1.5px solid var(--color-border);
  color: var(--color-text-muted);
}
.day.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ============================================
   FORMATION FLAGS & AFFILIATIONS
   ============================================ */
.formation-flags {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  margin: var(--space-10) 0;
}
.flag-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--color-bg-app);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.flag-item:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
}
.flag-emoji {
  font-size: 28px;
  line-height: 1;
}
.flag-item h4 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1px;
}
.flag-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Affiliations row */
.affiliations-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.affiliation-item {
  background: var(--color-bg-app);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.affiliation-item:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
}
.affiliation-role {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-secondary);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--space-1);
}
.affiliation-item h4 {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}
.affiliation-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  margin-top: var(--space-10);
}
.contact-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.contact-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--radius-md);
  background: rgba(214,52,120,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
}
.contact-item h4 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}
.contact-item p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}
.contact-item a {
  color: var(--color-secondary);
}
.contact-item a:hover {
  color: var(--color-secondary-dark);
}

/* Social links */
.social-links {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.social-link {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: rgba(94,26,54,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: all 0.2s ease;
}
.social-link:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* Map */
.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  background: var(--color-primary);
  text-align: center;
}
.cta-inner {
  max-width: 600px;
}
.cta-symbol {
  margin: 0 auto var(--space-5);
  filter: brightness(0) invert(1);
}
.cta-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}
.cta-text {
  color: var(--color-accent-pale);
  font-size: var(--text-md);
  margin-bottom: var(--space-8);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-primary-dark);
  padding: var(--space-12) 0 var(--space-6);
}
.footer-inner {
  text-align: center;
}
.footer-brand {
  margin-bottom: var(--space-6);
}
.footer-brand img {
  margin: 0 auto var(--space-3);
  filter: brightness(0) invert(1);
}
.footer-brand p {
  color: var(--color-accent-pale);
  font-size: var(--text-sm);
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--color-text-on-dark-2);
  font-size: var(--text-sm);
  font-weight: 500;
}
.footer-links a:hover {
  color: var(--color-white);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-6);
}
.footer-bottom p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }
.fade-in:nth-child(5) { transition-delay: 0.15s; }
.fade-in:nth-child(6) { transition-delay: 0.25s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 992px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content { order: 2; }
  .hero-image { order: 1; justify-content: center; }
  .hero-image-wrapper { width: 280px; height: 280px; }
  .hero-image-decoration { width: 320px; height: 320px; top: -15px; right: auto; }
  .hero-text { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .about-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .affiliations-row { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #FEF7FA;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }
  .nav.open {
    opacity: 1;
    pointer-events: all;
  }
  .nav-link {
    font-size: var(--text-xl);
    padding: var(--space-2) var(--space-4);
  }
  .nav-link::after { display: none; }
  .menu-toggle { display: flex; z-index: 10000; }
  .header-cta { display: none; }
  .hero { padding-top: calc(var(--header-height) + var(--space-8)); padding-bottom: var(--space-10); }
  .services-grid { grid-template-columns: 1fr; }
  .schedule-grid { grid-template-columns: 1fr; }
  .section { padding: var(--space-12) 0; }
  .schedule-days { flex-wrap: wrap; }
  .footer-links { flex-direction: column; gap: var(--space-3); }
  .trust-inner { gap: var(--space-5); justify-content: flex-start; }
  .trust-item { font-size: var(--text-sm); }
  .formation-flags { gap: var(--space-3); }
  .flag-item { width: 100%; }
}

/* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25D366;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
  color: #FFFFFF;
}
.whatsapp-float svg {
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.1));
}

@media (max-width: 480px) {
  .hero-image-wrapper { width: 220px; height: 220px; }
  .hero-image-decoration { width: 260px; height: 260px; }
  .hero-title { font-size: 32px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .about-stats { grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .stat-card { padding: var(--space-4); }
}