/* ============================================================
   Shirwal Gymkhana — style.css
   ============================================================ */

/* ── CSS Variables ── */
:root {
  --purple:    #7c3aed;
  --purple-dk: #6d28d9;
  --purple-lt: #f5f3ff;
  --gold:      #c8860a;
  --gold-lt:   #fff8e1;
  --red:       #e03535;
  --bg:        #f7f5f2;
  --bg2:       #ffffff;
  --bg3:       #f0eef8;
  --text:      #1c1c2e;
  --muted:     #6b7280;
  --border:    rgba(0, 0, 0, 0.08);
  --shadow:    0 2px 16px rgba(0, 0, 0, 0.07);
  --radius:    12px;
}

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

/* ============================================================
   NAVBAR
   ============================================================ */
nav {
  position: fixed;
  top: 0; width: 100%;
  z-index: 999;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  height: 68px;
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.07);
  transition: box-shadow 0.3s;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-logo img {
  width: 48px; height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--purple);
}
.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.nav-brand-text .brand-main {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.25rem;
  letter-spacing: 2px;
  color: var(--text);
}
.nav-brand-text .brand-sub {
  font-size: 0.68rem;
  color: var(--purple);
  letter-spacing: 1px;
  font-weight: 500;
}
.nav-links {
  display: flex;
  gap: 1.8rem;
  list-style: none;
}
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--purple); }
.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--text);
  display: block;
  transition: 0.3s;
}

/* ============================================================
   BANNER / SLIDER
   ============================================================ */
.banner {
  position: relative;
  height: 100vh;
  overflow: hidden;
}
.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
  opacity: 0;
  transition: opacity 1.1s ease;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
}
.slide.active { opacity: 1; }
.slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 5, 30, 0.85) 0%,
    rgba(10, 5, 30, 0.3) 55%,
    transparent 100%
  );
}
.slide-content {
  position: relative;
  z-index: 2;
  padding: 0 6% 72px;
}
.slide-tag {
  display: inline-block;
  background: var(--purple);
  color: white;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 3px;
  padding: 4px 16px;
  margin-bottom: 14px;
  border-radius: 2px;
}
.slide-content h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.8rem, 7vw, 6rem);
  line-height: 0.95;
  color: white;
  letter-spacing: 2px;
}
.slide-content h1 em {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  color: #fbbf24;
}
.slide-content p {
  margin-top: 12px;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 480px;
}
.slide-actions {
  margin-top: 22px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Buttons */
.btn-purple {
  background: var(--purple);
  color: white;
  border: none;
  padding: 12px 28px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.87rem;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.2s, transform 0.2s;
}
.btn-purple:hover { background: var(--purple-dk); transform: translateY(-2px); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: white;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  padding: 11px 24px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 0.87rem;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  backdrop-filter: blur(4px);
  transition: background 0.2s;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.24); }

/* Dots */
.slider-dots {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}
.dot.active { background: #fbbf24; transform: scale(1.35); }

/* Arrows */
.slider-arrows {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 18px;
  z-index: 10;
  pointer-events: none;
}
.arrow {
  width: 44px; height: 44px;
  background: rgba(255, 255, 255, 0.12);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  color: white;
  font-size: 1.1rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: all;
  backdrop-filter: blur(4px);
  transition: background 0.25s, border-color 0.25s;
}
.arrow:hover { background: var(--purple); border-color: var(--purple); }

/* Slide counter */
.slide-counter {
  position: absolute;
  bottom: 30px; right: 5%;
  z-index: 10;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 2px;
}
.slide-counter span { color: white; font-size: 1.4rem; }

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  background: var(--purple);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.stat {
  flex: 1 1 160px;
  text-align: center;
  padding: 26px 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}
.stat:last-child { border-right: none; }
.stat .num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.7rem;
  color: white;
  line-height: 1;
}
.stat .lbl {
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 1px;
  margin-top: 3px;
}

/* ============================================================
   SHARED SECTION STYLES
   ============================================================ */
.section { padding: 80px 6%; }

.section-label {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 5px;
  color: var(--purple);
  margin-bottom: 8px;
}
.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: 1px;
  line-height: 1;
  margin-bottom: 8px;
  color: var(--text);
}
.section-title em {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  color: var(--purple);
}
.section-sub {
  color: var(--muted);
  font-size: 0.93rem;
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 44px;
}

/* ============================================================
   EVENTS
   ============================================================ */
#events { background: var(--bg); }

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.4rem;
}
.event-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  cursor: pointer;
}
.event-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(124, 58, 237, 0.13);
  border-color: rgba(124, 58, 237, 0.3);
}
.event-thumb {
  height: 175px;
  background-size: cover;
  background-position: center top;
  position: relative;
}
.event-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--purple);
  color: white;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 2px;
  padding: 3px 12px;
  border-radius: 3px;
}
.event-date-badge {
  position: absolute;
  bottom: 0; right: 0;
  background: white;
  color: var(--purple);
  font-family: 'Bebas Neue', sans-serif;
  text-align: center;
  padding: 7px 13px;
  line-height: 1.1;
  border-radius: 8px 0 0 0;
  box-shadow: -2px -2px 10px rgba(0, 0, 0, 0.07);
}
.event-date-badge .day { font-size: 1.8rem; }
.event-date-badge .month { font-size: 0.68rem; letter-spacing: 2px; color: #999; }

.event-body { padding: 18px 20px; }
.event-body h4 { font-size: 1.03rem; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.event-body p  { color: var(--muted); font-size: 0.86rem; line-height: 1.6; }
.event-meta {
  margin-top: 12px;
  display: flex;
  gap: 14px;
  font-size: 0.77rem;
  color: #9ca3af;
}

/* ============================================================
   PROGRAMS
   ============================================================ */
#programs { background: var(--bg2); }

.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(225px, 1fr));
  gap: 1.2rem;
}
.prog-card {
  padding: 26px 20px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.3s, border-color 0.3s, background 0.3s, box-shadow 0.3s;
}
.prog-card:hover {
  transform: translateY(-5px);
  border-color: var(--purple);
  background: var(--bg3);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.1);
}
.prog-icon { font-size: 2.1rem; margin-bottom: 13px; }
.prog-card h4 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 1px;
  margin-bottom: 7px;
  color: var(--text);
}
.prog-card p { color: var(--muted); font-size: 0.86rem; line-height: 1.6; }

/* ============================================================
   TEAM TREE
   ============================================================ */
#team { background: var(--bg3); }

.tree-wrapper { overflow-x: auto; padding-bottom: 20px; }
.tree {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 720px;
  padding: 20px 0;
}
.tree-row { display: flex; justify-content: center; }

.node-card {
  background: var(--bg2);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 15px 17px;
  min-width: 138px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: border-color 0.3s, transform 0.3s;
}
.node-card:hover { border-color: var(--purple); transform: translateY(-3px); }
.node-card.president { border-color: var(--purple); border-width: 2px; background: #faf8ff; }

.node-avatar {
  width: 50px; height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple), #a78bfa);
  margin: 0 auto 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.2rem;
  color: white;
}
.node-card h5 { font-weight: 600; font-size: 0.87rem; margin-bottom: 3px; color: var(--text); }
.node-card p  { color: var(--muted); font-size: 0.73rem; }

.v-line {
  width: 2px; height: 28px;
  background: linear-gradient(#7c3aed60, #7c3aed10);
  margin: 0 auto;
}
.h-bar { height: 2px; background: rgba(124, 58, 237, 0.2); }

/* President size overrides */
.node-card.president .node-avatar { width: 64px; height: 64px; font-size: 1.6rem; }

/* Small member cards */
.node-card.sm { min-width: 110px; }
.node-card.sm .node-avatar { width: 36px; height: 36px; font-size: 0.85rem; }
.node-card.sm h5 { font-size: 0.81rem; }

/* ============================================================
   GALLERY
   ============================================================ */
#gallery { background: var(--bg2); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.gallery-item {
  overflow: hidden;
  border-radius: 10px;
  cursor: pointer;
  position: relative;
}
.gallery-item img {
  width: 100%; height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item:nth-child(1) { grid-column: span 2; }
.gallery-item:nth-child(1) img { height: 320px; }

.gallery-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.65));
  color: white;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 20px 14px 12px;
  opacity: 0;
  transition: opacity 0.3s;
}
.gallery-item:hover .gallery-caption { opacity: 1; }

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

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.55rem;
  margin-bottom: 20px;
  color: var(--text);
}
.info-item { display: flex; gap: 14px; margin-bottom: 18px; align-items: flex-start; }
.info-icon {
  width: 40px; height: 40px;
  background: var(--bg3);
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  flex-shrink: 0;
}
.info-item p { color: #555; font-size: 0.89rem; line-height: 1.6; }

.contact-form { display: flex; flex-direction: column; gap: 12px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  background: var(--bg2);
  border: 1.5px solid #e5e7eb;
  color: var(--text);
  padding: 13px 15px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.89rem;
  outline: none;
  border-radius: 8px;
  transition: border-color 0.2s;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: #bbb; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus { border-color: var(--purple); }
.contact-form textarea { height: 108px; resize: vertical; }

.btn-submit {
  background: var(--purple);
  color: white;
  border: none;
  padding: 13px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.btn-submit:hover { background: var(--purple-dk); transform: translateY(-1px); }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: #1c1c2e;
  color: rgba(255, 255, 255, 0.5);
  padding: 34px 6% 20px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 22px;
}
.footer-logo-wrap { display: flex; align-items: center; gap: 12px; }
.footer-logo-wrap img {
  width: 44px; height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--purple);
}
.footer-logo-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  color: white;
  letter-spacing: 2px;
  line-height: 1;
}
.footer-logo-text small {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.68rem;
  letter-spacing: 1px;
  color: var(--purple);
  font-weight: 500;
}
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  font-size: 0.83rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: white; }
.footer-bottom {
  text-align: center;
  font-size: 0.77rem;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

/* ============================================================
   MEMBERSHIP PRICING
   ============================================================ */
#pricing { background: var(--bg2); }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.6rem;
  margin-top: 10px;
}

.plan-card {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px 28px;
  position: relative;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  display: flex;
  flex-direction: column;
}
.plan-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(124, 58, 237, 0.13);
  border-color: rgba(124, 58, 237, 0.3);
}

/* Featured / Popular card */
.plan-card.featured {
  background: var(--purple);
  border-color: var(--purple);
  color: white;
  transform: translateY(-8px);
  box-shadow: 0 20px 48px rgba(124, 58, 237, 0.35);
}
.plan-card.featured:hover {
  transform: translateY(-14px);
  box-shadow: 0 28px 56px rgba(124, 58, 237, 0.4);
}

/* Popular badge */
.popular-badge {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: white;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 2px;
  padding: 4px 18px;
  border-radius: 20px;
  white-space: nowrap;
}

.plan-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.7rem;
  letter-spacing: 2px;
  margin-bottom: 6px;
  color: var(--text);
}
.plan-card.featured .plan-name { color: white; }

.plan-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 22px;
}
.plan-card.featured .plan-desc { color: rgba(255,255,255,0.75); }

.plan-price {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  margin-bottom: 22px;
  padding-bottom: 22px;
  border-bottom: 1.5px solid var(--border);
}
.plan-card.featured .plan-price { border-bottom-color: rgba(255,255,255,0.2); }

.plan-price .amount {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3.2rem;
  line-height: 1;
  color: var(--text);
}
.plan-card.featured .plan-price .amount { color: white; }

.plan-price .currency {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  color: var(--text);
  margin-bottom: 6px;
}
.plan-card.featured .plan-price .currency { color: white; }

.plan-price .period {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.plan-card.featured .plan-price .period { color: rgba(255,255,255,0.65); }

.plan-includes {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--text);
  margin-bottom: 14px;
}
.plan-card.featured .plan-includes { color: rgba(255,255,255,0.8); }

.plan-features {
  list-style: none;
  margin-bottom: 28px;
  flex: 1;
}
.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.plan-card.featured .plan-features li {
  color: rgba(255,255,255,0.85);
  border-bottom-color: rgba(255,255,255,0.12);
}
.plan-features li:last-child { border-bottom: none; }

.plan-features li .check {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.12);
  color: var(--purple);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem;
  flex-shrink: 0;
  margin-top: 1px;
}
.plan-card.featured .plan-features li .check {
  background: rgba(255,255,255,0.2);
  color: white;
}

.btn-plan {
  display: block;
  text-align: center;
  padding: 13px;
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.btn-plan-outline {
  background: transparent;
  border: 1.5px solid var(--purple);
  color: var(--purple);
}
.btn-plan-outline:hover { background: var(--purple); color: white; }

.btn-plan-solid {
  background: white;
  color: var(--purple);
  font-weight: 700;
}
.btn-plan-solid:hover { background: #f0ebff; transform: translateY(-1px); }

@media (max-width: 768px) {
  .plan-card.featured { transform: none; }
  .plan-card.featured:hover { transform: translateY(-6px); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 68px; right: -100%;
    width: 260px;
    height: calc(100vh - 68px);
    background: white;
    flex-direction: column;
    padding: 26px 22px;
    transition: right 0.3s;
    gap: 1.3rem;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
  }
  .nav-links.open { right: 0; }

  .slide-content { padding: 0 5% 80px; }

  .contact-grid { grid-template-columns: 1fr; }

  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item:nth-child(1) { grid-column: span 2; }
  .gallery-item:nth-child(1) img { height: 200px; }

  .tree { min-width: 400px; }
}

.tree-wrapper {
    width: 100%;
    padding: 20px;
}

.center {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.row {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.col {
    display: flex;
    justify-content: center;
}

.node-card {
    background: #fff;
    padding: 15px;
    border-radius: 12px;
    text-align: center;
    min-width: 150px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.node-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #fff;
    background: linear-gradient(135deg,#7c3aed,#2563eb);
}

.node-avatar.sm {
    width: 35px;
    height: 35px;
    font-size: 0.8rem;
}

/* Color Variants */
.green { background: linear-gradient(135deg,#059669,#0d9488); }
.blue { background: linear-gradient(135deg,#2563eb,#7c3aed); }
.red { background: linear-gradient(135deg,#dc2626,#f97316); }
.lime { background: linear-gradient(135deg,#059669,#84cc16); }
.yellow { background: linear-gradient(135deg,#d97706,#fbbf24); }
.purple { background: linear-gradient(135deg,#7c3aed,#db2777); }

/* Mobile Optimization */
@media (max-width: 768px) {
    .node-card {
        min-width: 120px;
        padding: 10px;
    }

    .node-avatar {
        width: 50px;
        height: 50px;
    }

    .row {
        gap: 10px;
    }
}