/* =========================================================
   REEL FREE — WHY DOES OXYGEN TUBING TANGLE?
   PAGE CSS
   ========================================================= */

/* =========================
   RESET / BASE
   ========================= */
*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --rf-black: #0f0f0f;
  --rf-black-2: #151515;
  --rf-black-3: #1d1d1d;
  --rf-white: #ffffff;
  --rf-offwhite: #f8f8f6;
  --rf-light: #e3e0e0;
  --rf-gray: #b7b7b7;
  --rf-slate: #414141;
  --rf-green: #18b19c;
  --rf-green-dark: #129481;
  --rf-green-bright: #29d8c0;
  --rf-mint: #8ce4d8;
  --rf-border-dark: rgba(255, 255, 255, 0.1);
  --rf-border-light: rgba(15, 15, 15, 0.09);
  --rf-shadow-dark: 0 22px 60px rgba(0, 0, 0, 0.34);
  --rf-shadow-light: 0 18px 50px rgba(0, 0, 0, 0.09);
  --rf-radius-sm: 16px;
  --rf-radius-md: 24px;
  --rf-radius-lg: 34px;
  --rf-radius-xl: 42px;
  --rf-container: 1240px;
  --rf-container-narrow: 930px;
  --rf-transition: 0.35s ease;
  --rf-gradient: linear-gradient(135deg, #18b19c 0%, #8ce4d8 100%);
  --rf-gradient-bright: linear-gradient(135deg, #29d8c0 0%, #c8fff6 100%);
}

html {
  scroll-behavior: smooth;
}

html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  font-family: "Poppins", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--rf-black);
  background: var(--rf-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  position: relative;
}

img,
iframe {
  max-width: 100%;
  display: block;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(calc(100% - 40px), var(--rf-container));
  margin: 0 auto;
}

.container-narrow {
  width: min(calc(100% - 40px), var(--rf-container-narrow));
  margin: 0 auto;
}

.oxygen-tangle-education-page {
  overflow: clip;
  position: relative;
}

/* =========================
   TYPOGRAPHY
   ========================= */
h1, .headline {
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: none;
  margin: 0;
  line-height: 0.98;
}

h2, .sub-headline {
  font-weight: 600;
  letter-spacing: -0.02em;
  text-transform: none;
  margin: 0;
  line-height: 1.03;
}

h3, h4 {
  margin: 0;
  line-height: 1.16;
  letter-spacing: -0.02em;
}

p, .body-text {
  font-weight: 300;
  letter-spacing: -0.02em;
  text-transform: none;
  margin: 0;
}

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

h1 {
  font-size: clamp(2.7rem, 5.8vw, 5.35rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
}

h3 {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 700;
}

p {
  font-size: 1.03rem;
  line-height: 1.78;
}

.section-kicker,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.section-kicker::before,
.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  border-radius: 999px;
  background: var(--rf-gradient);
  box-shadow: 0 0 20px rgba(24, 177, 156, 0.35);
}

.section-heading {
  margin-bottom: 42px;
}

.section-heading.center {
  text-align: center;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.section-heading h2 {
  margin-top: 16px;
}

.section-intro,
.hero-supporting-copy,
.lead-paragraph {
  font-size: 1.08rem;
}

/* =========================
   HEADER / NAV
   ========================= */
header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1200;
}

header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 18px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  min-height: 58px;
}

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

.logo {
  height: 34px;
  width: auto;
}

.nav-links {
  display: flex;
  justify-content: center;
  align-items: center;
  list-style: none;
  gap: 2px;
  margin: 0;
  padding: 0;
}

.nav-links li {
  display: inline-block;
  margin: 0;
  line-height: 1;
}

.nav-links a {
  text-decoration: none;
  color: #ffffff;
  font-size: 0.98rem;
  padding: 10px 14px;
  display: block;
  transition: color 0.3s ease, transform 0.3s ease;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--rf-green-bright);
}

header nav .nav-links .buy-now-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--rf-gradient);
  color: #0b2420;
  text-decoration: none;
  padding: 10px 16px;
  border: 0;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease;
  box-shadow: 0 10px 24px rgba(24, 177, 156, 0.28);
  margin-left: 10px;
  white-space: nowrap;
}

header nav .nav-links .buy-now-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(24, 177, 156, 0.35);
  filter: brightness(1.04);
  color: #0b2420;
}

.hamburger {
  display: none;
  cursor: pointer;
  font-size: 30px;
  color: white;
  z-index: 2000;
}

/* =========================
   GLOBAL SECTION STYLING
   ========================= */
main section {
  position: relative;
}

main section::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: min(94%, 1280px);
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(
    90deg,
    rgba(0,0,0,0),
    rgba(24,177,156,0.18),
    rgba(0,0,0,0)
  );
  pointer-events: none;
}

.hero-section,
.education-section,
.solution-section,
.final-cta-section {
  background: var(--rf-black);
  color: var(--rf-white);
}

.quick-answer-section,
.causes-section,
.fix-section,
.video-section,
.gallery-section,
.faq-section {
  background: var(--rf-white);
  color: var(--rf-black);
}

.hero-section::before,
.education-section::before,
.solution-section::before,
.final-cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(24,177,156,0.15), transparent 26%),
    radial-gradient(circle at 88% 15%, rgba(140,228,216,0.08), transparent 24%),
    linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0));
  pointer-events: none;
}

.quick-answer-section::before,
.causes-section::before,
.fix-section::before,
.video-section::before,
.gallery-section::before,
.faq-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 14% 20%, rgba(24,177,156,0.055), transparent 26%),
    radial-gradient(circle at 85% 12%, rgba(140,228,216,0.08), transparent 20%);
  pointer-events: none;
}

.hero-section,
.quick-answer-section,
.causes-section,
.education-section,
.fix-section,
.solution-section,
.video-section,
.gallery-section,
.faq-section,
.final-cta-section {
  padding: 96px 0;
}

/* =========================
   BUTTONS
   ========================= */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 16px 24px;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition:
    transform var(--rf-transition),
    box-shadow var(--rf-transition),
    border-color var(--rf-transition),
    background var(--rf-transition),
    color var(--rf-transition);
  overflow: hidden;
  isolation: isolate;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--rf-transition);
  z-index: -1;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  color: #0b2420;
  background: var(--rf-gradient);
  box-shadow:
    0 14px 34px rgba(24, 177, 156, 0.28),
    inset 0 1px 0 rgba(255,255,255,0.35);
}

.btn-primary::before {
  background: var(--rf-gradient-bright);
}

.btn-primary:hover {
  box-shadow:
    0 18px 40px rgba(24,177,156,0.4),
    inset 0 1px 0 rgba(255,255,255,0.42);
}

.btn-secondary {
  background: transparent;
  color: inherit;
  border: 1px solid currentColor;
}

.btn-secondary::before {
  background: rgba(24,177,156,0.08);
}

.hero-section .btn-secondary,
.solution-section .btn-secondary,
.final-cta-section .btn-secondary {
  border-color: rgba(255,255,255,0.25);
  color: var(--rf-white);
}

/* =========================
   HERO
   ========================= */
.hero-section {
  padding-top: 120px;
  padding-bottom: 108px;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.hero-section .eyebrow,
.education-section .section-kicker,
.solution-section .section-kicker,
.final-cta-section .section-kicker {
  color: var(--rf-mint);
}

.quick-answer-section .section-kicker,
.causes-section .section-kicker,
.fix-section .section-kicker,
.video-section .section-kicker,
.gallery-section .section-kicker,
.faq-section .section-kicker {
  color: var(--rf-green);
}

.hero-copy h1 span {
  display: inline-block;
  color: var(--rf-mint);
}

.hero-direct-answer {
  margin-top: 22px;
  font-size: clamp(1.08rem, 1.8vw, 1.3rem);
  color: rgba(255,255,255,0.9);
  max-width: 760px;
}

.hero-supporting-copy {
  margin-top: 18px;
  color: rgba(255,255,255,0.72);
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-badges li {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 16px;
  background: rgba(255,255,255,0.06);
  color: var(--rf-white);
  border: 1px solid rgba(255,255,255,0.11);
  border-radius: 999px;
  font-size: 0.91rem;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  backdrop-filter: blur(8px);
  transition: transform var(--rf-transition), border-color var(--rf-transition);
}

.hero-badges li:hover {
  border-color: rgba(140,228,216,0.38);
  transform: translateY(-2px);
}

.hero-visuals {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: stretch;
}

.hero-image {
  position: relative;
  overflow: hidden;
  border-radius: 30px;
  box-shadow: var(--rf-shadow-dark);
  border: 1px solid rgba(255,255,255,0.08);
  background: var(--rf-black-2);
}

.hero-image::before,
.cause-image::before,
.education-image::before,
.solution-image::before,
.gallery-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.15));
  pointer-events: none;
  z-index: 1;
}

.hero-image img,
.cause-image img,
.education-image img,
.solution-image img,
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.hero-image:hover img,
.cause-image:hover img,
.education-image:hover img,
.solution-image:hover img,
.gallery-item:hover img {
  transform: scale(1.04);
}

.hero-image-main,
.hero-image-side {
  min-height: 560px;
}

/* =========================
   QUICK ANSWER
   ========================= */
.quick-answer-card {
  position: relative;
  padding: 36px;
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(255,255,255,0.97), rgba(248,248,246,0.98));
  border: 1px solid rgba(15,15,15,0.08);
  box-shadow: var(--rf-shadow-light);
  overflow: hidden;
}

.quick-answer-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 34px;
  right: 34px;
  height: 4px;
  background: var(--rf-gradient);
  border-radius: 999px;
}

.quick-answer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.quick-item {
  padding: 28px 24px;
  background: var(--rf-white);
  border-radius: 24px;
  border: 1px solid rgba(15,15,15,0.08);
  transition:
    transform var(--rf-transition),
    border-color var(--rf-transition),
    box-shadow var(--rf-transition);
}

.quick-item:hover {
  transform: translateY(-6px);
  border-color: rgba(24,177,156,0.28);
  box-shadow: 0 20px 36px rgba(0,0,0,0.08);
}

.quick-item h3 {
  margin-bottom: 12px;
  color: var(--rf-black);
}

.quick-item p {
  color: var(--rf-slate);
}

/* =========================
   CAUSES
   ========================= */
.causes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.cause-card {
  position: relative;
  border-radius: 28px;
  background: var(--rf-white);
  border: 1px solid rgba(15,15,15,0.09);
  box-shadow: var(--rf-shadow-light);
  overflow: hidden;
  transition:
    transform var(--rf-transition),
    box-shadow var(--rf-transition),
    border-color var(--rf-transition);
}

.cause-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 52px rgba(0,0,0,0.12);
  border-color: rgba(24,177,156,0.24);
}

.cause-image {
  position: relative;
  min-height: 240px;
  overflow: hidden;
}

.cause-card h3,
.cause-card p {
  padding-left: 24px;
  padding-right: 24px;
}

.cause-card h3 {
  padding-top: 22px;
  margin-bottom: 12px;
}

.cause-card p {
  padding-bottom: 26px;
  color: var(--rf-slate);
}

/* =========================
   EDUCATION SECTION
   ========================= */
.education-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 40px;
  align-items: center;
}

.education-copy p:not(.section-kicker) {
  color: rgba(255,255,255,0.74);
}

.education-copy p + p {
  margin-top: 16px;
}

.education-visuals {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  grid-template-rows: repeat(2, minmax(210px, 1fr));
  gap: 18px;
}

.education-image {
  overflow: hidden;
  border-radius: 28px;
  background: var(--rf-black-2);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--rf-shadow-dark);
  min-height: 240px;
}

.education-image-large {
  grid-row: 1 / span 2;
  min-height: 520px;
}

.education-image-small {
  min-height: 250px;
}

/* =========================
   FIX SECTION
   ========================= */
.fix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.fix-card {
  position: relative;
  padding: 32px 28px;
  border-radius: 28px;
  background: var(--rf-white);
  border: 1px solid rgba(15,15,15,0.09);
  box-shadow: var(--rf-shadow-light);
  overflow: hidden;
  transition:
    transform var(--rf-transition),
    box-shadow var(--rf-transition),
    border-color var(--rf-transition);
}

.fix-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 5px;
  background: var(--rf-gradient);
  opacity: 0.92;
}

.fix-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 52px rgba(0,0,0,0.12);
  border-color: rgba(24,177,156,0.22);
}

.fix-card h3 {
  margin-bottom: 14px;
  color: var(--rf-black);
}

.fix-card p {
  color: var(--rf-slate);
}

/* =========================
   SOLUTION SECTION
   ========================= */
.solution-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}

.solution-copy .lead-paragraph {
  margin-top: 18px;
  color: rgba(255,255,255,0.84);
}

.solution-copy > p:not(.section-kicker):not(.lead-paragraph) {
  margin-top: 18px;
  color: rgba(255,255,255,0.72);
}

.benefit-list {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}

.benefit-list li {
  position: relative;
  padding: 16px 18px 16px 54px;
  border-radius: 18px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--rf-white);
  font-weight: 600;
}

.benefit-list li::before {
  content: "✓";
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--rf-gradient);
  color: #0b2420;
  font-size: 0.9rem;
  font-weight: 800;
}

.solution-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.solution-image {
  overflow: hidden;
  border-radius: 32px;
  box-shadow: var(--rf-shadow-dark);
  border: 1px solid rgba(255,255,255,0.08);
  min-height: 560px;
  background: var(--rf-black-2);
}

/* =========================
   VIDEO
   ========================= */
.video-section .section-intro {
  color: var(--rf-slate);
}

.video-shell {
  position: relative;
  overflow: hidden;
  border-radius: 34px;
  background: var(--rf-black);
  border: 1px solid rgba(15,15,15,0.08);
  box-shadow: 0 28px 70px rgba(0,0,0,0.15);
  aspect-ratio: 16 / 9;
}

.video-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(24,177,156,0.65), rgba(255,255,255,0.14), rgba(140,228,216,0.45));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.video-shell iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* =========================
   GALLERY
   ========================= */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  min-height: 230px;
  background: #ddd;
  border: 1px solid rgba(15,15,15,0.08);
  box-shadow: var(--rf-shadow-light);
  transition:
    transform var(--rf-transition),
    box-shadow var(--rf-transition),
    border-color var(--rf-transition);
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 42px rgba(0,0,0,0.11);
  border-color: rgba(24,177,156,0.22);
}

/* =========================
   FAQ
   ========================= */
.faq-list {
  display: grid;
  gap: 18px;
}

.faq-item {
  position: relative;
  padding: 28px 28px 26px;
  border-radius: 24px;
  background: linear-gradient(180deg, #ffffff, #fbfbfa);
  border: 1px solid rgba(15,15,15,0.08);
  box-shadow: var(--rf-shadow-light);
  transition:
    transform var(--rf-transition),
    box-shadow var(--rf-transition),
    border-color var(--rf-transition);
}

.faq-item::before {
  content: "";
  position: absolute;
  left: 26px;
  top: 0;
  width: 74px;
  height: 4px;
  border-radius: 999px;
  background: var(--rf-gradient);
}

.faq-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 46px rgba(0,0,0,0.09);
  border-color: rgba(24,177,156,0.22);
}

.faq-item h3 {
  margin-bottom: 12px;
  color: var(--rf-black);
}

.faq-item p {
  color: var(--rf-slate);
}

/* =========================
   FINAL CTA
   ========================= */
.final-cta-card {
  position: relative;
  overflow: hidden;
  padding: 48px;
  border-radius: 36px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.025));
  border: 1px solid rgba(140,228,216,0.18);
  box-shadow: var(--rf-shadow-dark);
  text-align: center;
}

.final-cta-card::before {
  content: "";
  position: absolute;
  inset: -10% auto auto 50%;
  transform: translateX(-50%);
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(24,177,156,0.22), transparent 65%);
  pointer-events: none;
}

.final-cta-card h2 {
  margin-top: 14px;
}

.final-cta-card p:not(.section-kicker) {
  margin: 18px auto 0;
  max-width: 760px;
  color: rgba(255,255,255,0.74);
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

/* =========================
   ANIMATIONS
   ========================= */
.hero-copy,
.hero-visuals,
.quick-answer-card,
.cause-card,
.education-copy,
.education-image,
.fix-card,
.solution-copy,
.solution-image,
.video-shell,
.gallery-item,
.faq-item,
.final-cta-card {
  animation: rfFadeUp 0.9s ease both;
}

.cause-card:nth-child(2),
.fix-card:nth-child(2),
.gallery-item:nth-child(2),
.faq-item:nth-child(2) {
  animation-delay: 0.08s;
}

.cause-card:nth-child(3),
.fix-card:nth-child(3),
.gallery-item:nth-child(3),
.faq-item:nth-child(3) {
  animation-delay: 0.16s;
}

.gallery-item:nth-child(4),
.faq-item:nth-child(4) {
  animation-delay: 0.24s;
}

.gallery-item:nth-child(5) {
  animation-delay: 0.32s;
}

@keyframes rfFadeUp {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================
   FOOTER
   ========================= */
.site-footer {
  background-color: #222;
  color: #fff;
  padding: 40px 20px;
  font-family: 'Poppins', sans-serif;
  position: relative;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-nav,
.footer-social,
.footer-info {
  flex: 1 1 calc(33.33% - 20px);
  min-width: 200px;
}

.footer-nav h3,
.footer-social h3,
.footer-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #fff;
}

.footer-nav ul,
.footer-social ul {
  list-style: none;
  padding: 0;
}

.footer-nav ul li,
.footer-social ul li {
  margin-bottom: 10px;
}

.footer-nav ul li a,
.footer-social ul li a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-nav ul li a:hover,
.footer-social ul li a:hover {
  color: var(--rf-green);
}

.footer-info {
  font-size: 0.92rem;
  color: #ccc;
  line-height: 1.6;
}

.footer-info p {
  margin: 10px 0;
}

.footer-info a {
  color: var(--rf-green);
  text-decoration: none;
}

.footer-info a:hover {
  color: var(--rf-green-bright);
  text-decoration: underline;
}

.footer-bottom {
  text-align: center;
  margin-top: 40px;
  font-size: 0.9rem;
  color: #bbb;
  width: 100%;
}

.footer-bottom p {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.footer-brand {
  font-weight: 700;
  color: #fff;
}

.footer-year {
  font-weight: 500;
  color: #ccc;
}

.footer-rights {
  font-weight: 300;
  color: #bbb;
}

.footer-divider {
  margin: 0 0.3rem;
  color: #999;
}

/* =========================
   FOOTER CHAT BUTTON
   ========================= */
.footer-chat {
  margin-top: 14px;
}

.rf-chatbtn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 0;
  background: var(--rf-green);
  color: #0c2b27;
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(2, 24, 43, 0.18);
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.rf-chatbtn:hover {
  transform: translateY(-1px);
}

.rf-chatbtn:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(2, 24, 43, 0.16);
}

.rf-chatbtn:focus-visible {
  outline: 3px solid #33c9b5;
  outline-offset: 2px;
}

.rf-chatbtn-help {
  opacity: 0.95;
}

.rf-chatbtn-dot {
  opacity: 0.75;
}

.rf-chatbtn-chat {
  background: #ffffff;
  color: #09443c;
  padding: 6px 10px;
  border-radius: 999px;
  line-height: 1;
  font-weight: 800;
}

/* =========================
   MOBILE NAV
   ========================= */
@media (max-width: 768px) {
  .hamburger {
    display: block;
    transition: transform 0.3s ease;
  }

  .hamburger.open {
    transform: rotate(90deg);
  }

  .nav-links {
    z-index: 1500;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.94);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateY(-100%);
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
    gap: 10px;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-links li {
    margin: 10px 0;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s forwards;
  }

  .nav-links.active li {
    animation: fadeInUp 0.5s forwards;
  }

  .nav-links li a {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
  }

  header nav .nav-links .buy-now-button {
    font-size: 1.1rem;
    padding: 14px 28px;
    margin: 14px auto 0;
  }

  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* =========================
   RESPONSIVE PAGE
   ========================= */
@media (max-width: 1180px) {
  .hero-layout,
  .education-layout,
  .solution-layout {
    grid-template-columns: 1fr;
  }

  .hero-visuals,
  .education-visuals {
    grid-template-columns: 1fr 1fr;
  }

  .quick-answer-grid,
  .causes-grid,
  .fix-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .education-image-large {
    grid-row: auto;
    min-height: 360px;
  }
}

@media (max-width: 820px) {
  .hero-section,
  .quick-answer-section,
  .causes-section,
  .education-section,
  .fix-section,
  .solution-section,
  .video-section,
  .gallery-section,
  .faq-section,
  .final-cta-section {
    padding: 74px 0;
  }

  .hero-visuals,
  .quick-answer-grid,
  .causes-grid,
  .education-visuals,
  .fix-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .hero-image-main,
  .hero-image-side,
  .education-image-large,
  .education-image-small,
  .solution-image,
  .gallery-item {
    min-height: 300px;
  }

  .quick-answer-card,
  .final-cta-card {
    padding: 28px;
  }

  .cause-card h3,
  .cause-card p,
  .quick-item,
  .fix-card,
  .faq-item {
    padding-left: 22px;
    padding-right: 22px;
  }

  .hero-actions,
  .solution-actions,
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .hero-badges {
    gap: 10px;
  }
}

@media (max-width: 560px) {
  .container,
  .container-narrow {
    width: min(calc(100% - 24px), var(--rf-container));
  }

  .hero-section {
    padding-top: 92px;
  }

  .hero-badges li {
    width: 100%;
    justify-content: center;
  }

  .quick-answer-card,
  .final-cta-card {
    border-radius: 24px;
  }

  .hero-image,
  .cause-image,
  .education-image,
  .solution-image,
  .gallery-item,
  .video-shell {
    border-radius: 22px;
  }

  .quick-item,
  .fix-card,
  .faq-item,
  .cause-card {
    border-radius: 20px;
  }
}

/* =========================
   FOOTER MOBILE
   ========================= */
@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-nav,
  .footer-social,
  .footer-info {
    flex: 1 1 100%;
    margin-bottom: 20px;
  }

  .footer-bottom {
    margin-top: 20px;
  }
}

@media (min-width: 768px) {
  .site-footer {
    position: relative;
  }

  .footer-chat {
    position: absolute;
    right: 18px;
    bottom: 18px;
    margin-top: 0;
    text-align: right;
  }
}

/* =========================
   REDUCED MOTION
   ========================= */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .rf-chatbtn {
    transition: none !important;
  }
}