/* ============================================================
   NUTRIWASTE — Main Stylesheet
   Brand: Purple #6061D8 · Green #43D158 · Cream #FFFFE0
   Type: DM Mono (logo/accents) · Inter (body/headings)
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300&family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── Design Tokens ────────────────────────────────────────── */
:root {
  --purple:       #6061D8;
  --purple-dark:  #4546c4;
  --green:        #43D158;
  --cream:        #FFFFFF;
  --black:        #061806;
  --blue-light:   #92BAE4;

  --font-mono:    'DM Mono', monospace;
  --font-sans:    'Inter', sans-serif;

  --radius-sm:    8px;
  --radius-md:    16px;
  --radius-lg:    32px;

  --transition:   0.3s cubic-bezier(0.4, 0, 0.2, 1);

  --max-w:        1800px;
  --px:           clamp(1.5rem, 5vw, 4rem);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--black);
  color: var(--cream);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.1; }

.label-mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
}

/* ── Layout Utilities ─────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--px);
}

.section {
  padding: clamp(5rem, 7vw, 9rem) var(--px);
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ── NAV ──────────────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem var(--px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* Add this to prevent the 1px jitter when scrolling */
  border-bottom: 1px solid transparent; 
  transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
}

#nav.scrolled {
  background: rgba(6, 24, 6, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

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

.nav__logo img {
  height: 28px;
  width: auto;
  filter: invert(0); /* cream on dark */
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cream);
  opacity: 0.7;
  transition: opacity var(--transition);
}

.nav__links a:hover { opacity: 1; }

.nav__cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  background: var(--green);
  color: var(--black);
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  font-weight: 500;
  transition: background var(--transition), transform var(--transition);
}

.nav__cta:hover {
  background: #5ae26b;
  transform: translateY(-1px);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cream);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── HERO ─────────────────────────────────────────────────── */
#hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--black);
  position: relative;
  overflow: hidden;
  padding-top: 5rem;
}

.hero__bg-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  opacity: 0.55;
  pointer-events: none;
}

.hero__bg-shape {
  position: absolute;
  right: -10%;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(300px, 55vw, 750px);
  opacity: 0.18;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--px);
  width: 100%;
  padding-bottom: 120px; /* Protects against the absolute supporters block */
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--green);
  margin-bottom: 2rem;
  padding: 0.45rem 1rem;
  border: 1px solid var(--green);
  border-radius: 999px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.2s;
}

.hero__tag::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  display: block;
}

.hero__title {
  font-size: clamp(2.8rem, 7vw, 6.5rem);
  font-weight: 800;
  line-height: 1.0;
  color: var(--cream);
  max-width: 750px;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.4s;
}

.hero__title em {
  font-style: normal;
  color: var(--green);
}

.hero__sub {
  margin-top: 1.75rem;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-weight: 300;
  line-height: 1.65;
  color: rgba(255,255,255,0.8);
  max-width: 520px;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.6s;
}

.hero__actions {
  margin-top: 2.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.8s;
}

.hero__insect {
  position: absolute;
  right: var(--px);
  top: 50%;
  transform: translateY(-50%);
  width: clamp(180px, 28vw, 400px);
  opacity: 0;
  animation: fadeIn 1.2s ease forwards 1s;
}

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  font-weight: 500;
  padding: 0.85rem 2rem;
  border-radius: 999px;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

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

.btn--primary {
  background: var(--green);
  color: var(--black);
  box-shadow: 0 4px 24px rgba(67,209,88,0.25);
}

.btn--primary:hover {
  background: #5ae26b;
  box-shadow: 0 8px 32px rgba(67,209,88,0.35);
}

.btn--outline {
  background: transparent;
  color: var(--cream);
  border: 1.5px solid rgba(255,255,255,0.4);
}

.btn--outline:hover {
  border-color: var(--cream);
  background: rgba(255,255,255,0.05);
}

/* ── SUPPORTERS STRIP ─────────────────────────────────────── */
#supporters {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  transform: translateY(0%);
  z-index: 10;
  padding: 0 var(--px);
}

.supporters__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
  justify-content: left;
  background: transparent;
  border-radius: var(--radius-md);
  padding: 1.75rem 0rem;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.25);
}

.supporters__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.4;
  white-space: nowrap;
}

.supporters__logos {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.supporters__logos img {
  height: 36px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%) contrast(1.2);
  opacity: 0.6;
  transition: opacity var(--transition), filter var(--transition);
}

.supporters__logos img:hover {
  opacity: 1;
  filter: none;
}

/* ── PROBLEM SECTION ──────────────────────────────────────── */
#problem {
  background: var(--black);
}

.problem__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.problem__text .label-mono { margin-bottom: 1rem; }

.problem__text h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--cream);
  margin-bottom: 1.5rem;
}

.problem__text p {
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(255,255,255,0.65);
  margin-bottom: 1rem;
}

.problem__text p:last-of-type { margin-bottom: 0; }

.problem__stats {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stat-card {
  background: var(--black);
  border-radius: var(--radius-md);
  padding: 2rem 2.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition);
}

.stat-card:hover { transform: translateX(6px); }

.stat-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--green);
  border-radius: 4px 0 0 4px;
}

.stat-card__number {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  color: var(--green);
  line-height: 1;
  white-space: nowrap;
}

.stat-card__text {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--green);
  padding-top: 0.4rem;
}

/* ── PROCESS SECTION ──────────────────────────────────────── */
#process {
  background: var(--cream);
}

.process__header {
  text-align: center;
  margin-bottom: 4rem;
}

.process__header .label-mono { margin-bottom: 1rem; }

.process__header h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--black);
}

.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  position: relative;
}

/* connecting line */
.process__steps::after {
  content: '';
  position: absolute;
  top: 3.5rem;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.25), transparent);
  pointer-events: none;
}

.step {
  background-color: #0618060d;
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem 2.25rem;
  position: relative;
  transition: background var(--transition), transform var(--transition);
}

.step:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.step__number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--black);
  margin-bottom: 1.5rem;
  display: block;
}

.step__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step__icon svg {
  width: 40px;
  height: 40px;
  stroke: var(--black);
  opacity: 0.8;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.step p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--black);
}

/* ── OBJECTIVES ───────────────────────────────────────────── */
#objectives {
  background: var(--cream);
}

.objectives__inner {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 5rem;
  align-items: center;
}

.objectives__left h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--black);
  line-height: 1.05;
}

.objectives__left .label-mono {
  color: var(--black);
  opacity: 0.5;
  margin-bottom: 1rem;
}

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

.objective-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: rgba(6,24,6,0.08);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: background var(--transition);
}

.objective-item:hover { background: rgba(6,24,6,0.14); }

.objective-item__icon {
  width: 40px;
  height: 40px;
  background: var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.objective-item__icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--green);
}

.objective-item__text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--black);
  opacity: 0.85;
  padding-top: 0.1rem;
}

/* ── SUPPORTERS DETAIL ────────────────────────────────────── */


#supporters-detail {
  background: var(--black);
}

.supporters-detail__header {
  margin-bottom: 3.5rem;
}

.supporters-detail__header .label-mono { margin-bottom: 1rem; }

.supporters-detail__header h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--cream);
}

.supporters-detail__header p {
  margin-top: 1rem;
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
  max-width: 480px;
}

.supporters-detail__grid {
  display: grid;
  /* min(100%, 340px) lets it shrink on extreme mobile sizes */
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1.5rem;
}

.supporter-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.supporter-card:hover {
  border-color: rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.07);
  transform: translateY(-3px);
}

.supporter-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.supporter-card__logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.7;
}

.supporter-card__since {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--green);
  letter-spacing: 0.1em;
}

.supporter-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 0.6rem;
}

.supporter-card p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.55);
}

.supporter-card__amount {
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--green);
}

/* ── CONTACT ──────────────────────────────────────────────── */
#contact {
  background: var(--black);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact__left .label-mono { margin-bottom: 1rem; }

.contact__left h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--cream);
  margin-bottom: 1.25rem;
}

.contact__left p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(255,255,255,0.65);
}

/* ── FORM ─────────────────────────────────────────────────── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--cream);
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  resize: none;
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.25);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--green);
  background: rgba(255,255,255,0.1);
}

.form-group textarea { min-height: 130px; }

.form-status {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green);
  min-height: 1.2em;
}

/* ── FOOTER ───────────────────────────────────────────────── */
#footer {
  background: var(--black);
  padding: 3rem var(--px) 2rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer__logo img {
  height: 22px;
  opacity: 0.6;
}

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
}

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

.footer__copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.06em;
}

/* ── ANIMATIONS ───────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

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

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .process__steps { grid-template-columns: repeat(2, 1fr); }
  .process__steps::after { display: none; }
  .problem__grid { grid-template-columns: 1fr; gap: 3rem; }
  .objectives__inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact__inner { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__hamburger { display: flex; }

  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--black);
    padding: 6rem 2rem 3rem;
    gap: 2rem;
    z-index: 90;
    align-items: flex-start;
    font-size: 1.2rem;
    overflow-y: auto; /* Allows scrolling inside the menu */
  }

  .nav__links.open a { opacity: 1; font-size: 1.4rem; }

  .nav__links.open .nav__cta {
    display: inline-flex;
    font-size: 1rem;
    margin-top: 1rem;
  }

  .hero__insect { display: none; }
  .hero__title { font-size: clamp(2.4rem, 10vw, 4rem); }
  .process__steps { grid-template-columns: 1fr; }
  .supporters-detail__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}