/* ============================================================
   Delta Sigma Pi — Beta Nu Chapter
   style.css — full stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ── Variables ───────────────────────────────────────────── */
:root {
  --purple:       #4A22C4;
  --purple-mid:   #6135D8;
  --purple-dark:  #1A0447;
  --purple-light: #F2EEFF;
  --gold:         #F0B429;
  --gold-dark:    #9A6F00;
  --white:        #ffffff;
  --bg:           #F7F7F9;
  --border:       #E8E5EF;
  --text:         #0F0822;
  --muted:        #6B6880;
  --font: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --max:  1100px;
  --ease: 0.16s ease;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: var(--font); }

/* ── Container ───────────────────────────────────────────── */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

/* ── Section labels ──────────────────────────────────────── */
.sec-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 12px;
  display: block;
}
.sec-label.light { color: var(--gold); }

.sec-sub {
  color: var(--muted);
  font-size: 1rem;
  max-width: 560px;
  line-height: 1.75;
  margin-top: 12px;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all var(--ease);
  letter-spacing: 0.01em;
}
.btn-purple {
  background: var(--purple);
  color: var(--white);
}
.btn-purple:hover {
  background: var(--purple-mid);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(74,34,196,0.3);
}
.btn-gold {
  background: var(--gold);
  color: var(--purple-dark);
}
.btn-gold:hover {
  background: #f5c043;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(240,180,41,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--purple-dark);
  border: 1.5px solid rgba(26,4,71,0.3);
}
.btn-outline:hover {
  background: rgba(26,4,71,0.05);
  border-color: var(--purple-dark);
}

/* ── Navbar ──────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  background: #ffffff;
  box-shadow: 0 1px 0 rgba(0,0,0,0.08);
  transition: background var(--ease), box-shadow var(--ease);
}
#navbar.scrolled {
  background: #ffffff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  backdrop-filter: blur(10px);
}
#navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo-circle {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--purple-dark);
  font-size: 0.7rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.nav-brand-name {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--purple-dark);
  letter-spacing: -0.01em;
}
.nav-brand-sub {
  font-size: 0.65rem;
  color: var(--muted);
  font-weight: 500;
}
.nav-logo-img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}
#nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
#nav-links a {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--purple-dark);
  padding: 7px 12px;
  border-radius: 7px;
  transition: color var(--ease);
}
#nav-links a:hover {
  color: var(--purple);
}
#nav-links a.active {
  color: var(--purple);
  font-weight: 700;
}
#hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
#hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--purple-dark);
  border-radius: 2px;
  transition: all var(--ease);
}

/* ── Hero ────────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: #ffffff;
  position: relative;
  overflow: hidden;
  padding: 100px 0 80px;
}
.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: url('Group Photo.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  filter: grayscale(40%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(74,34,196,0.07);
  border: 1px solid rgba(74,34,196,0.15);
  border-radius: 100px;
  padding: 6px 16px;
  margin-bottom: 32px;
}
.hero-badge span {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--purple);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--purple);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
#hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 800;
  color: var(--purple-dark);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}
#hero h1 em {
  font-style: normal;
  color: var(--purple);
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.hero-stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--purple-dark);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -0.03em;
}
.hero-stat-label {
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── About Section (index) ───────────────────────────────── */
#about {
  background: var(--white);
  padding: 100px 0;
}
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-left h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--purple-dark);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 24px;
}
.about-left p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
  margin-bottom: 16px;
}
.about-left p:last-of-type { margin-bottom: 28px; }
.pillar-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.pillar-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.pillar-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--purple-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.pillar-item h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--purple-dark);
  margin-bottom: 2px;
}
.pillar-item p {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}

/* ── Alumni Section ──────────────────────────────────────── */
#alumni {
  background: var(--bg);
  padding: 100px 0;
  border-top: 1px solid var(--border);
}
#alumni h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--purple-dark);
  letter-spacing: -0.03em;
  margin-bottom: 0;
}

.alumni-visual { margin-top: 52px; }
.alumni-row {
  display: grid;
  grid-template-columns: 148px 1fr;
  gap: 16px 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.alumni-row:last-child { border-bottom: none; }
.alumni-industry {
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple);
  padding-top: 6px;
  line-height: 1.4;
}
.alumni-firms {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.firm-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
  transition: all var(--ease);
  cursor: default;
  white-space: nowrap;
}
.firm-pill:hover {
  border-color: var(--purple);
  color: var(--purple);
  background: var(--purple-light);
}
.firm-pill.bold { font-weight: 700; }

/* ── Brothers Preview Section ────────────────────────────── */
#brothers-preview {
  background: var(--white);
  padding: 80px 0;
}
.brothers-cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 44px 48px;
}
.brothers-cta-card h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--purple-dark);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}
.brothers-cta-card .sec-sub { margin-top: 0; }

/* ── Rush Section ────────────────────────────────────────── */
#rush {
  background: linear-gradient(150deg, var(--purple-dark) 0%, #2D1578 100%);
  padding: 100px 0;
}
.rush-card {
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 72px 56px;
  backdrop-filter: blur(8px);
}
.rush-card .sec-label { color: var(--gold); margin-bottom: 20px; }
.rush-card h2 {
  color: var(--white);
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.rush-card .rush-msg {
  color: rgba(255,255,255,0.72);
  font-size: 1rem;
  line-height: 2.0;
  letter-spacing: 0.01em;
  max-width: 380px;
  margin: 0 auto 40px;
}

/* ── Page Header (exec, brothers, about) ─────────────────── */
.page-header {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: flex-end;
  padding: 0 0 56px;
  overflow: hidden;
  background: #ffffff;
}
.page-header-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
  opacity: 0.18;
  filter: grayscale(60%);
}
.page-header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.4) 100%);
}
.page-header .container {
  position: relative;
  z-index: 1;
  padding-top: 100px;
}
.page-header .sec-label { color: var(--purple); }
.page-header h1 {
  color: var(--purple-dark);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 12px 0 10px;
}
.page-header p {
  color: var(--muted);
  font-size: 0.93rem;
}

/* ── About Page (about.html) ─────────────────────────────── */
.about-main {
  padding: 80px 0 100px;
  background: var(--white);
}
.about-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  align-items: start;
}
.about-sidebar {
  position: sticky;
  top: 80px;
}
.about-avatar {
  width: 120px; height: 120px;
  border-radius: 50%;
  background: var(--purple);
  color: var(--white);
  font-size: 1.6rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  overflow: hidden;
}
.about-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--purple-dark);
  margin-bottom: 4px;
}
.about-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-dark);
  margin-bottom: 4px;
}
.about-sub {
  font-size: 0.82rem;
  color: var(--muted);
}
.about-body p {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.9;
  margin-bottom: 24px;
}
.about-body p:last-child { margin-bottom: 0; }
.about-sign {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.about-sign strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--purple-dark);
}
.about-sign span {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ── Brothers Page ───────────────────────────────────────── */
.brothers-main {
  padding: 72px 0 100px;
  background: var(--white);
}
.class-panel { display: none; }
.class-panel.active { display: block; }
.class-info { margin-bottom: 36px; }
.class-info h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--purple-dark);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.class-year-label {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
}

/* Dropdown selector */
.class-selector-wrap {
  position: relative;
  max-width: 380px;
  margin-bottom: 48px;
}
.selector-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--font);
  text-align: left;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.selector-btn:hover {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(74,34,196,0.06);
}
.selector-label {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--purple-dark);
}
.selector-meta {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 2px;
}
.selector-arrow {
  color: var(--muted);
  transition: transform var(--ease);
  flex-shrink: 0;
}
.selector-btn.open .selector-arrow { transform: rotate(180deg); }
.class-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0; right: 0;
  z-index: 20;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(26,4,71,0.12);
  display: none;
}
.class-dropdown.open { display: block; }
.dropdown-option {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  font-family: var(--font);
  text-align: left;
  transition: background var(--ease);
}
.dropdown-option:last-child { border-bottom: none; }
.dropdown-option:hover { background: var(--bg); }
.dropdown-option.active { background: var(--purple-light); }
.opt-name {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--purple-dark);
}
.opt-meta {
  display: block;
  font-size: 0.73rem;
  color: var(--muted);
  margin-top: 2px;
}

/* Brother full card */
.brothers-full-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}
.bro-card-full {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 18px 22px;
  text-align: center;
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}
.bro-card-full:hover {
  border-color: #c0b2e8;
  box-shadow: 0 6px 24px rgba(26,4,71,0.09);
  transform: translateY(-2px);
}
.bro-avatar-lg {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--purple);
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  overflow: hidden;
}
.bro-avatar-lg img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.bro-card-full h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.3;
}
.bro-card-badges {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 6px;
}
.bro-badge-class {
  font-size: 0.64rem;
  font-weight: 700;
  color: var(--purple);
  background: var(--purple-light);
  border: 1px solid rgba(74,34,196,0.15);
  padding: 2px 9px;
  border-radius: 100px;
  letter-spacing: 0.04em;
}
.bro-badge-year {
  font-size: 0.64rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 2px 9px;
  border-radius: 100px;
}
.bro-card-major {
  font-size: 0.77rem;
  color: var(--muted);
  margin-bottom: 12px;
  line-height: 1.3;
}
.bro-interests {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}
.bro-interest-tag {
  font-size: 0.63rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 100px;
}

/* ── Alumni Visualization (industry rows) ────────────────── */
/* (defined above under #alumni section) */

/* ── Exec roles ──────────────────────────────────────────── */
.exec-roles { display: flex; flex-direction: column; gap: 2px; }
.exec-role-line {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-dark);
}

/* ── Footer ──────────────────────────────────────────────── */
footer {
  background: var(--purple-dark);
  padding: 56px 0 40px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.footer-brand-wrap { }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.footer-logo {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--purple-dark);
  font-size: 0.7rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.footer-brand-name {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--white);
}
.footer-brand-sub {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.4);
  margin-top: 2px;
}
.footer-tagline {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  max-width: 240px;
  line-height: 1.6;
}
.footer-links {
  display: flex;
  gap: 8px;
  list-style: none;
  flex-wrap: wrap;
  align-items: center;
}
.footer-links a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 6px;
  transition: color var(--ease);
}
.footer-links a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 0.78rem;
  font-weight: 700;
  transition: all var(--ease);
}
.footer-social a:hover {
  background: rgba(255,255,255,0.12);
  color: var(--white);
}

/* ── Back link ───────────────────────────────────────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  transition: color var(--ease);
  margin-bottom: 32px;
}
.back-link:hover { color: var(--purple); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .about-split { grid-template-columns: 1fr; gap: 48px; }
  .about-layout { grid-template-columns: 1fr; gap: 40px; }
  .about-sidebar { position: static; }
  .brothers-cta-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px;
  }
  .alumni-row { grid-template-columns: 120px 1fr; gap: 12px 20px; }
  .rush-card { padding: 48px 32px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  #nav-links {
    display: none;
    position: fixed;
    top: 64px; left: 0; right: 0;
    z-index: 99;
    background: rgba(26,4,71,0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
  }
  #nav-links.open { display: flex; }
  #nav-links a {
    padding: 12px 16px;
    font-size: 0.9rem;
    border-radius: 8px;
    width: 100%;
    color: #ffffff;
  }
  #nav-links a:hover,
  #nav-links a.active {
    color: var(--gold);
    background: rgba(255,255,255,0.08);
  }
  #hamburger { display: flex; }
  #hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  #hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  #hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .brothers-full-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .alumni-row { grid-template-columns: 1fr; }
  .alumni-industry { padding-top: 0; }
  .footer-inner { flex-direction: column; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .rush-card { padding: 40px 24px; }
  .brothers-full-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}