@import url('https://fonts.googleapis.com/css2?family=Ubuntu:ital,wght@0,400;0,500;0,700;1,400;1,500&display=swap');

:root {
  /* Official Volt Colors */
  --volt-purple: #502379;
  --volt-white: #ffffff;
  --volt-green: #1BBE6F;       /* Sustainability, ecological, nature */
  --volt-yellow: #FDC220;      /* Liberal, individual, open minded */
  --volt-blue: #82D0F4;        /* Economy, digital, technological */
  --volt-red: #E63E12;         /* Social welfare, care, solidarity */
  
  /* Neutral palette */
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --text-dark: #212529;
  --text-gray: #6c757d;
  --border-light: #dee2e6;
  --shadow: rgba(0, 0, 0, 0.08);
  
  /* Layout */
  --max-width: 1200px;
  --section-spacing: 80px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { overflow-x: hidden; }

body {
  overflow-x: hidden;
  margin: 0;
  color: var(--text-dark);
  font-family: 'Ubuntu', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 400;
  background: var(--volt-white);
  line-height: 1.6;
}

/* Legacy landing page styles (for backwards compatibility) */
.page {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(135deg, var(--volt-purple), #6b3d8f);
}

.card {
  width: min(820px, 100%);
  background: var(--volt-white);
  border: none;
  border-radius: 8px;
  box-shadow: 0 4px 16px var(--shadow);
  padding: 32px;
}

.header {
  display: flex;
  gap: 16px;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--volt-purple);
}

.logo {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  font-weight: 700;
  background: var(--volt-purple);
  color: var(--volt-white);
}

h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-dark);
}

.subtitle {
  margin: 6px 0 0;
  color: var(--text-gray);
  font-size: 16px;
  font-style: italic;
}

.content {
  padding: 20px 0;
  color: var(--text-dark);
  font-size: 16px;
  line-height: 1.6;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 4px;
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  color: var(--text-dark);
  font-size: 13px;
}

.footer {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
  color: var(--text-gray);
  font-size: 14px;
}

.link {
  color: var(--volt-purple);
  text-decoration: none;
}

.link:hover {
  text-decoration: underline;
}

.dot {
  opacity: 0.65;
}

.muted {
  color: var(--text-gray);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--volt-white);
  border-bottom: 2px solid var(--volt-purple);
  box-shadow: 0 2px 8px var(--shadow);
}

.navbar-container {
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-width: 0;
}

.navbar-brand {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  text-decoration: none;
  color: var(--text-dark);
  min-width: 0;
  flex-shrink: 1;
}

.navbar-logo {
  height: 38px;
  width: auto;
  display: block;
}

.navbar-logo img {
  height: 100%;
  width: auto;
  display: block;
}

.navbar-title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.navbar-title-short {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  color: var(--volt-purple);
  white-space: nowrap;
  line-height: 1;
  margin-bottom: 3px;
}

.navbar-nav {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  margin-left: auto;
  padding: 0;
}

.nav-link {
  color: var(--text-dark);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 4px;
  transition: all 0.2s;
  font-size: 15px;
  font-weight: 500;
}

.nav-link:hover {
  color: var(--volt-purple);
  background: rgba(80, 35, 121, 0.08);
}

.nav-link.active {
  color: var(--volt-white);
  background: var(--volt-purple);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--volt-purple);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}

/* Mobile-only nav items (hidden on desktop) */
.nav-mobile-only {
  display: none;
}

/* Navbar social links */
.navbar-social {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-left: auto;
  margin-right: 16px;
}

.navbar-social-link {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: transparent;
  border: 1px solid var(--border-light);
  text-decoration: none;
  transition: all 0.2s;
}

.navbar-social-link img {
  width: 18px;
  height: 18px;
  filter: brightness(0) saturate(100%) invert(18%) sepia(47%) saturate(2034%) hue-rotate(261deg) brightness(93%) contrast(98%);
  transition: filter 0.2s;
}

.navbar-social-link:hover {
  border-color: var(--volt-purple);
  background: var(--volt-purple);
}

.navbar-social-link:hover img {
  filter: brightness(0) saturate(100%) invert(100%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(100%) contrast(100%);
}

/* Main layout */
.main-content {
  margin-top: 70px;
  min-height: calc(100vh - 70px);
  background: var(--volt-white);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-spacing) 0;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--volt-purple);
}

.section-subtitle {
  color: var(--text-gray);
  font-size: 18px;
  font-style: italic;
  margin: 0 0 48px;
  max-width: 700px;
}

/* Hero section */
.hero {
  padding: 120px 0 80px;
  text-align: center;
  background: linear-gradient(135deg, var(--volt-purple), #6b3d8f);
  color: var(--volt-white);
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  margin: 0 0 16px;
  line-height: 1.1;
  color: var(--volt-white);
}

.hero-subtitle {
  font-size: 28px !important;
  font-weight: 500 !important;
  font-style: italic !important;
  color: var(--volt-white) !important;
  margin: 0 0 28px !important;
  opacity: 1 !important;
  line-height: 1.2 !important;
  letter-spacing: -0.5px !important;
}

.hero-description {
  font-size: 20px;
  color: var(--volt-white);
  margin: 0 0 40px;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Ubuntu', sans-serif;
}

.btn-primary {
  background: var(--volt-white);
  color: var(--volt-purple);
  border-color: var(--volt-white);
}

.btn-primary:hover {
  background: transparent;
  color: var(--volt-white);
  border-color: var(--volt-white);
}

.btn-secondary {
  background: transparent;
  color: var(--volt-purple);
  border-color: var(--volt-purple);
}

.btn-secondary:hover {
  background: var(--volt-purple);
  color: var(--volt-white);
}

/* Donate button in navbar */
.btn-donate {
  display: inline-flex !important;
  align-items: center;
  padding: 10px 20px;
  background: var(--volt-purple) !important;
  color: var(--volt-white) !important;
  text-decoration: none !important;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.2s;
  margin-left: 16px;
}

.btn-donate:hover {
  background: #6b3d8f !important;
  color: var(--volt-white) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(80, 35, 121, 0.3);
}

/* Join button in navbar */
.btn-join {
  display: inline-flex !important;
  align-items: center;
  padding: 10px 20px;
  background: transparent !important;
  color: var(--volt-purple) !important;
  text-decoration: none !important;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.2s;
  margin-left: 16px;
  border: 2px solid var(--volt-purple);
}

.btn-join:hover {
  background: var(--volt-purple) !important;
  color: var(--volt-white) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(80, 35, 121, 0.3);
}

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.content-card {
  background: var(--volt-white);
  border: 2px solid var(--border-light);
  border-radius: 4px;
  padding: 28px;
  transition: all 0.2s;
}

.content-card:hover {
  border-color: var(--volt-purple);
  box-shadow: 0 4px 16px var(--shadow);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: var(--volt-purple);
  font-size: 28px;
  margin-bottom: 20px;
}

.card-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 0 12px;
  position: relative;
  overflow: hidden;
}

.card-photo img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.card-person {
  font-size: 15px;
  font-weight: 600;
  color: var(--volt-purple);
  margin: 0 0 12px;
  text-align: left;
}

.card-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--text-dark);
}

.card-description {
  color: var(--text-gray);
  line-height: 1.6;
  margin: 0;
}

/* Event cards */
.event-card {
  display: flex;
  gap: 20px;
  background: var(--volt-white);
  border: 2px solid var(--border-light);
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

.event-card:hover {
  border-color: var(--volt-purple);
  box-shadow: 0 2px 8px var(--shadow);
}

.event-date {
  flex-shrink: 0;
  text-align: center;
  padding: 12px;
  background: var(--volt-purple);
  border-radius: 4px;
  min-width: 70px;
}

.event-day {
  display: block;
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--volt-white);
}

.event-month {
  display: block;
  font-size: 14px;
  text-transform: uppercase;
  margin-top: 4px;
  color: var(--volt-white);
  font-weight: 500;
}

.event-details h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
}

.event-meta {
  color: var(--text-gray);
  font-size: 14px;
}

.event-description {
  color: var(--text-gray);
  font-size: 14px;
  margin-top: 4px;
}

.events-section-heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0 0 20px;
}

/* Accordion / fold-out */
.accordion-toggle {
  cursor: pointer;
  position: relative;
}

.accordion-toggle::after {
  content: '▾';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--text-gray);
  transition: transform 0.2s ease;
}

.accordion-toggle.open::after {
  transform: translateY(-50%) rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-body.open {
  max-height: 2000px;
}

.accordion-body-inner {
  padding: 20px 24px;
  border-top: 1px solid #eee;
}

.event-card.accordion-toggle {
  padding-right: 40px;
}

.accordion-body-inner h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0 0 12px;
}

.accordion-body-inner p {
  color: var(--text-gray);
  font-size: 14px;
  line-height: 1.7;
  margin: 0 0 12px;
}

.accordion-body-inner ul {
  color: var(--text-gray);
  font-size: 14px;
  line-height: 1.7;
  padding-left: 20px;
  margin: 0 0 12px;
}

.accordion-body-inner li {
  margin-bottom: 4px;
}

.accordion-body-inner img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 12px 0;
}

.accordion-body-inner .external-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.accordion-body-inner .external-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--volt-purple);
  color: var(--volt-white);
  text-decoration: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.accordion-body-inner .external-link:hover {
  opacity: 0.85;
}

.calendar-dropdown {
  position: relative;
  display: inline-block;
  margin-top: 16px;
}

.calendar-dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--volt-white);
  color: var(--volt-purple);
  border: 2px solid var(--volt-purple);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  font-family: inherit;
}

.calendar-dropdown-btn:hover {
  background: var(--volt-purple);
  color: var(--volt-white);
}

.calendar-dropdown-menu {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  background: var(--volt-white);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  min-width: 200px;
  z-index: 10;
  overflow: hidden;
}

.calendar-dropdown-menu.open {
  display: flex;
  flex-direction: column;
}

.calendar-option {
  display: block;
  padding: 10px 16px;
  color: var(--text-dark);
  text-decoration: none;
  font-size: 14px;
  transition: background 0.15s;
}

.calendar-option:hover {
  background: rgba(80, 35, 121, 0.08);
  color: var(--volt-purple);
}

/* News accordion card wrapper */
.news-accordion {
  background: var(--volt-white);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  overflow: hidden;
}

.news-accordion .content-card {
  margin: 0;
  border-radius: 0;
  box-shadow: none;
  cursor: pointer;
  position: relative;
  padding-right: 40px;
}

.news-accordion .content-card::after {
  content: '▾';
  position: absolute;
  right: 24px;
  top: 24px;
  font-size: 18px;
  color: var(--text-gray);
  transition: transform 0.2s ease;
}

.news-accordion .content-card.open::after {
  transform: rotate(180deg);
}

/* Event card wrapper for accordion */
.event-accordion {
  background: var(--volt-white);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  overflow: hidden;
}

.event-accordion .event-card {
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 800px;
}

.privacy-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin: 32px 0 12px;
}

.privacy-content p,
.privacy-content ul {
  color: var(--text-gray);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 12px;
}

.privacy-content ul {
  padding-left: 24px;
}

.privacy-content li {
  margin-bottom: 6px;
}

.privacy-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 20px 0 8px;
}

.privacy-content a {
  color: var(--volt-purple);
}

/* Team section header */
.team-section-header {
  text-align: center;
  margin-bottom: 48px;
}

/* Team grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.team-member {
  background: var(--volt-white);
  border: 2px solid var(--border-light);
  border-radius: 6px;
  padding: 24px;
  text-align: center;
  transition: all 0.2s;
}

.team-member:hover {
  border-color: var(--volt-purple);
  box-shadow: 0 4px 16px var(--shadow);
  transform: translateY(-2px);
}

.member-photo {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: var(--volt-purple);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--volt-white);
}

.member-photo img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.member-name {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--text-dark);
}

.member-role {
  color: var(--volt-purple);
  font-size: 14px;
  font-weight: 500;
  margin: 0 0 12px;
}

.member-bio {
  color: var(--text-gray);
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
}

.team-member-minimal {
  padding: 32px 24px;
}

.team-member-minimal .member-name {
  margin-bottom: 4px;
}

.team-member-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 28px 24px;
}

.team-list-item {
  text-align: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.team-list-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.team-list-item .member-name {
  margin-bottom: 4px;
}

/* Co-Leads Grid */
.team-leads-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}

.team-lead {
  background: var(--volt-white);
  border: 2px solid var(--border-light);
  border-radius: 6px;
  padding: 32px;
  text-align: center;
  transition: all 0.2s;
}

.team-lead:hover {
  border-color: var(--volt-purple);
  box-shadow: 0 4px 16px var(--shadow);
  transform: translateY(-2px);
}

.lead-photo {
  width: 360px;
  height: 360px;
  border-radius: 4px;
  margin: 0 auto 20px;
  background: var(--volt-purple);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  color: var(--volt-white);
}

.lead-photo img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.lead-name {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--text-dark);
}

.lead-role {
  color: var(--volt-purple);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.lead-bio {
  color: var(--text-gray);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
  text-align: left;
}

/* Supporting Members List */
.team-supporting-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.team-supporting-member {
  background: var(--volt-white);
  border: 2px solid var(--border-light);
  border-radius: 6px;
  padding: 20px 24px;
  transition: all 0.2s;
}

.team-supporting-member:hover {
  border-color: var(--volt-purple);
  box-shadow: 0 4px 16px var(--shadow);
  transform: translateY(-2px);
}

.supporting-content {
  width: 100%;
}

.supporting-name {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--text-dark);
}

.supporting-role {
  color: var(--volt-purple);
  font-size: 13px;
  font-weight: 500;
  margin: 0 0 8px;
}

.supporting-bio {
  color: var(--text-gray);
  font-size: 14px;
  line-height: 1.4;
  margin: 0;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-dark);
  font-size: 14px;
  font-weight: 700;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--volt-white);
  border: 2px solid var(--border-light);
  border-radius: 4px;
  color: var(--text-dark);
  font-size: 15px;
  font-family: 'Ubuntu', sans-serif;
  transition: all 0.2s;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--volt-purple);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Form Messages */
.form-message {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  animation: formMsgIn 0.35s ease;
}

.form-message-success {
  background: rgba(27, 190, 111, 0.1);
  color: #0d7a42;
  border: 1px solid rgba(27, 190, 111, 0.3);
}

.form-message-error {
  background: rgba(230, 62, 18, 0.08);
  color: #b32e0e;
  border: 1px solid rgba(230, 62, 18, 0.25);
}

.form-message-out {
  animation: formMsgOut 0.3s ease forwards;
}

@keyframes formMsgIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes formMsgOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-8px); }
}

/* Footer */
.site-footer {
  border-top: 2px solid var(--volt-purple);
  padding: 48px 0;
  margin-top: var(--section-spacing);
  background: var(--bg-light);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-link {
  color: var(--text-dark);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--volt-purple);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: var(--volt-white);
  border: 2px solid var(--border-light);
  text-decoration: none;
  transition: all 0.2s;
}

.social-link img {
  width: 20px;
  height: 20px;
  filter: brightness(0) saturate(100%) invert(18%) sepia(47%) saturate(2034%) hue-rotate(261deg) brightness(93%) contrast(98%);
  transition: filter 0.2s;
}

.social-link:hover {
  border-color: var(--volt-purple);
  background: var(--volt-purple);
}

.social-link:hover img {
  filter: brightness(0) saturate(100%) invert(100%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(100%) contrast(100%);
}

.footer-tagline {
  margin-top: 24px;
  text-align: center;
}

.footer-tagline img {
  max-height: 40px;
  width: auto;
  max-width: 100%;
  opacity: 0.9;
}

/* Responsive */
@media (max-width: 1024px) {
  .navbar-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--volt-white);
    flex-direction: column;
    padding: 16px;
    gap: 6px;
    border-bottom: 2px solid var(--volt-purple);
    box-shadow: 0 4px 8px var(--shadow);
  }

  .navbar-nav.active {
    display: flex;
  }

  .navbar-toggle {
    display: block;
  }

  .btn-donate {
    display: none !important;
  }

  .btn-join {
    display: none !important;
  }

  .navbar-social {
    display: none !important;
  }

  .nav-mobile-only {
    display: block;
    list-style: none;
  }

  .nav-mobile-buttons {
    display: flex;
    gap: 12px;
    padding-top: 12px;
    margin-top: 8px;
    border-top: 1px solid var(--border-light);
  }

  .nav-mobile-buttons .btn-join,
  .nav-mobile-buttons .btn-donate {
    display: inline-flex !important;
    flex: 1;
    justify-content: center;
    margin-left: 0;
    text-align: center;
  }

  .nav-mobile-social {
    display: flex;
    gap: 8px;
    justify-content: center;
    padding-top: 12px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .hero-description {
    font-size: 18px;
  }

  .section-title {
    font-size: 28px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

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

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

  .team-leads-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .team-lead {
    padding: 24px;
  }

  .lead-photo {
    width: 280px;
    height: 280px;
    font-size: 64px;
  }

  .team-supporting-member {
    padding: 16px 20px;
  }

  .supporting-number {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }
}

@media (max-width: 520px) {
  .card { padding: 24px; }
  h1 { font-size: 22px; }
  .navbar-container { padding: 12px 16px; }
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
  .hero { padding: 80px 0 48px; }
}