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

:root {
  --green-dark:  #2b5219;
  --green-mid:   #4a7c3f;
  --green-light: #e8f5e2;
  --green-pale:  #f3faee;
  --pink:        #e8198b;
  --pink-light:  #fce4f3;
  --text-dark:   #1a1a1a;
  --text-body:   #555;
  --white:       #ffffff;
  --radius:      14px;
}

body {
  font-family: 'Poppins', 'Segoe UI', system-ui, sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
}

/* ── Header ────────────────────────────────────────────────────── */
.site-header {
  background: var(--white);
  padding: 10px 40px;
  border-bottom: 2px solid var(--green-light);
  box-shadow: 0 2px 16px rgba(45, 82, 25, .08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  max-width: 1100px;
  margin: 0 auto;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo-sep {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, #c8e6b8, transparent);
}

.header-logo {
  display: block;
  object-fit: contain;
}

.header-logo--khetika {
  height: 90px;
  width: auto;
  transform: scale(1.55);
  transform-origin: left center;
  margin-right: 80px;
}

.header-logo--iima {
  height: 64px;
  width: auto;
}

/* ── Hero ──────────────────────────────────────────────────────── */
.hero {
  background: radial-gradient(ellipse at 60% 0%, #d9f0c8 0%, var(--green-pale) 40%, #fbfff8 100%);
  text-align: center;
  padding: 72px 24px 64px;
  position: relative;
  overflow: hidden;
}

/* ── Botanical branch decorations ──────────────────────────────── */
.branch {
  position: absolute;
  pointer-events: none;
  user-select: none;
  opacity: 0;
  animation: branchFadeIn 1s ease forwards;
}

@keyframes branchFadeIn {
  to { opacity: 0.25; }
}

/* Hero corners */
.branch--tl {
  width: 260px;
  top: -30px;
  left: -40px;
  transform: rotate(135deg);
  opacity: 0;
  animation-delay: .1s;
}

.branch--tr {
  width: 220px;
  top: -20px;
  right: -35px;
  transform: rotate(-45deg) scaleX(-1);
  opacity: 0;
  animation-delay: .2s;
}

.branch--bl {
  width: 200px;
  bottom: -20px;
  left: -30px;
  transform: rotate(-30deg);
  opacity: 0;
  animation-delay: .3s;
}

.branch--br {
  width: 180px;
  bottom: -15px;
  right: -25px;
  transform: rotate(150deg) scaleX(-1);
  opacity: 0;
  animation-delay: .35s;
}

.branch--mid {
  width: 140px;
  top: 50%;
  right: 6%;
  transform: translateY(-50%) rotate(80deg);
  opacity: 0;
  animation-delay: .45s;
}

/* About section branch */
.branch--about-tl {
  width: 180px;
  top: -20px;
  left: -20px;
  transform: rotate(120deg);
  opacity: 0;
  animation-delay: .1s;
}


/* small accent dots */
.hero::before {
  content: '';
  position: absolute;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,124,63,.12) 0%, transparent 70%);
  top: -40px; left: -40px;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,124,63,.1) 0%, transparent 70%);
  bottom: -60px; right: -60px;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 660px;
  margin: 0 auto;
}

.hero__title {
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 800;
  color: var(--green-dark);
  line-height: 1.12;
  letter-spacing: -.5px;
}

.hero__coming-soon {
  font-size: clamp(22px, 3.5vw, 36px);
  font-weight: 700;
  color: var(--pink);
  margin-top: 8px;
  letter-spacing: .5px;
}

/* ── Event meta (date / venue) ─────────────────────────────────── */
.hero__event-meta {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  margin-top: 32px;
  background: var(--white);
  border-radius: 50px;
  padding: 14px 32px;
  box-shadow: 0 4px 20px rgba(45,82,25,.1);
  flex-wrap: wrap;
  justify-content: center;
}

.event-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.event-meta-item__icon {
  width: 32px;
  height: 32px;
  color: var(--pink);
  flex-shrink: 0;
}
.event-meta-item__icon svg { width: 100%; height: 100%; }

.event-meta-item__label {
  font-size: 11px;
  font-weight: 600;
  color: var(--green-mid);
  text-transform: uppercase;
  letter-spacing: .8px;
  display: block;
  line-height: 1;
}

.event-meta-item__value {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  display: block;
  margin-top: 2px;
}

.event-meta-item__divider {
  width: 1px;
  height: 38px;
  background: #d4e8cc;
}

/* ── CTA Buttons ───────────────────────────────────────────────── */
.hero__cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 50px;
  font-family: 'Poppins', sans-serif;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease;
  letter-spacing: .2px;
}

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

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
}

.btn--filled {
  background: linear-gradient(135deg, #e8198b, #c4147a);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(232,25,139,.3);
}
.btn--filled:hover { box-shadow: 0 8px 24px rgba(232,25,139,.4); }

.btn--outline {
  background: var(--white);
  color: var(--pink);
  border: 2px solid var(--pink);
}
.btn--outline:hover { background: var(--pink-light); }

/* ── Tagline Banner ────────────────────────────────────────────── */
.tagline-banner {
  background: linear-gradient(90deg, #1e3d10 0%, #2b5219 50%, #1e3d10 100%);
  color: var(--white);
  text-align: center;
  padding: 18px 32px;
}

.tagline-banner__text {
  font-size: clamp(15px, 2.5vw, 20px);
  font-weight: 400;
  letter-spacing: .2px;
}

.tagline-banner__text em {
  font-style: italic;
  font-weight: 800;
  color: #c2f27a;
}

/* ── About Section — split layout ─────────────────────────────── */
.about-summit {
  display: grid;
  grid-template-columns: 55fr 45fr;
  min-height: 380px;
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  margin: 28px 40px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, .18);
}

.about-summit__left {
  background: linear-gradient(135deg, #163309 0%, #1f4a0e 50%, #2b5c18 100%);
  padding: 52px 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-summit__right {
  background: url('assets/Cleanfood-summit-main-img.webp') center/cover no-repeat;
}

.about-summit__event-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: #5ddbb4;
  margin-bottom: 16px;
}

.about-summit__heading {
  font-size: clamp(32px, 4.2vw, 54px);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 18px;
  letter-spacing: -.5px;
}

.about-summit__description {
  font-size: 13.5px;
  color: rgba(255,255,255,.78);
  line-height: 1.65;
  max-width: 420px;
}

/* ── Topics ────────────────────────────────────────────────────── */
.topics {
  background: #eef8e6;
  padding: 64px 40px 72px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

/* Leaf decorations for topics */
.branch--topics-tl {
  width: 200px;
  top: -20px;
  left: -30px;
  transform: rotate(30deg);
  opacity: 0;
  animation-delay: .1s;
}
.branch--topics-tr {
  width: 160px;
  top: -10px;
  right: -20px;
  transform: rotate(-120deg) scaleX(-1);
  opacity: 0;
  animation-delay: .2s;
}

.topics__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.topics__heading {
  font-size: clamp(22px, 3.5vw, 34px);
  font-weight: 800;
  color: var(--green-dark);
  line-height: 1.3;
  margin-bottom: 52px;
}
.topics__heading span {
  color: var(--green-mid);
}

.topics__rows {
  position: relative;
}

/* Green horizontal band behind first row */
.topics__band {
  position: absolute;
  left: -40px;
  right: -40px;
  top: 50px;
  height: 110px;
  background: #c8e8a8;
  z-index: 0;
  border-radius: 4px;
}

.topics__row {
  display: flex;
  justify-content: center;
  gap: 28px;
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
}

.topics__row--four { margin-bottom: 28px; }

/* Tombstone / arch-shaped card */
.topic-card {
  background: var(--white);
  border-radius: 70px 70px 14px 14px;
  width: 138px;
  padding: 18px 14px 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  box-shadow: 0 4px 18px rgba(45, 82, 25, .12);
}

.topic-card__icon {
  width: 96px;
  height: 96px;
  flex-shrink: 0;
}

.topic-card__title {
  font-size: 12px;
  font-weight: 700;
  color: var(--green-dark);
  line-height: 1.4;
  text-align: center;
}

/* ── Contact ───────────────────────────────────────────────────── */
.contact {
  background: var(--green-pale);
  padding: 72px 24px 80px;
}

.contact__inner {
  max-width: 760px;
  margin: 0 auto;
}

.contact__header {
  text-align: center;
  margin-bottom: 48px;
}

.contact__eyebrow {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--green-mid);
  margin-bottom: 10px;
}

.contact__heading {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  color: var(--green-dark);
  margin-bottom: 12px;
}

.contact__sub {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.65;
  max-width: 520px;
  margin: 0 auto;
}

.contact__form {
  background: var(--white);
  border-radius: 20px;
  padding: 40px 44px;
  box-shadow: 0 4px 32px rgba(45, 82, 25, .10);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-field__label {
  font-size: 12px;
  font-weight: 600;
  color: var(--green-dark);
  letter-spacing: .3px;
}

.form-field__optional {
  font-weight: 400;
  color: #999;
}

.form-field__input {
  font-family: 'Poppins', sans-serif;
  font-size: 14px;
  color: var(--text-dark);
  background: var(--green-pale);
  border: 1.5px solid #d0e8c4;
  border-radius: 10px;
  padding: 12px 16px;
  outline: none;
  transition: border-color .18s, box-shadow .18s;
  width: 100%;
}

.form-field__input:focus {
  border-color: var(--green-mid);
  box-shadow: 0 0 0 3px rgba(74, 124, 63, .12);
}

.form-field__input::placeholder { color: #aac4a0; }

.form-field__select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%234a7c3f'%3E%3Cpath fill-rule='evenodd' d='M5.23 7.21a.75.75 0 011.06.02L10 11.168l3.71-3.938a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 18px; padding-right: 40px; }

.form-field__textarea { resize: vertical; min-height: 110px; }

.contact__form-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  padding-top: 4px;
  flex-wrap: wrap;
}

.form-msg {
  font-size: 13px;
  font-weight: 600;
  flex: 1;
}
.form-msg--success { color: #2b7a2b; }
.form-msg--error   { color: #c0392b; }

.contact__submit { padding: 14px 40px; font-size: 15px; }

@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .contact__form { padding: 28px 20px; }
}

/* ── Footer ────────────────────────────────────────────────────── */
.site-footer {
  background: var(--green-dark);
  color: var(--white);
  padding: 28px 32px;
  text-align: center;
}

.site-footer__social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.social-link {
  color: var(--white);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: opacity .15s, transform .15s;
}
.social-link:hover { opacity: .8; transform: translateY(-1px); }

.social-link__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.social-link__divider { color: rgba(255,255,255,.3); font-size: 20px; }

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .about-summit { grid-template-columns: 1fr; margin: 20px 16px; border-radius: 16px; }
  .about-summit__right { min-height: 260px; }
  .about-summit__left { padding: 40px 28px; }
  .site-header { padding: 12px 20px; }
  .header-logo--khetika {
    height: 52px;
    transform: none;
    margin-right: 0;
  }
  .header-logo--iima { height: 44px; }
  .topics { padding: 48px 20px 56px; }
  .topics__row { gap: 16px; }
  .topic-card { width: 120px; }
  .topic-card__icon { width: 80px; height: 80px; }
  .topics__band { display: none; }
}

@media (max-width: 500px) {
  .hero__event-meta { padding: 12px 20px; gap: 12px; }
  .event-meta-item__divider { display: none; }
  .hero__cta-group { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; justify-content: center; }
}