/* =============================================================================
   NONPROFIT PLATFORM — COMPONENTS
   All reusable UI components. Every element styled here.
   ============================================================================= */

/* ══════════════════════════════════════════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: var(--btn-height-md);
  padding: 0 var(--btn-padding-x-md);
  font-family: var(--font-body);
  font-size: var(--btn-font-size);
  font-weight: var(--btn-font-weight);
  line-height: 1;
  white-space: nowrap;
  border: 2px solid transparent;
  border-radius: var(--btn-radius);
  cursor: pointer;
  text-decoration: none;
  transition: 
    background-color var(--duration-base) var(--ease-default),
    border-color     var(--duration-base) var(--ease-default),
    color            var(--duration-base) var(--ease-default),
    box-shadow       var(--duration-base) var(--ease-default),
    transform        var(--duration-fast) var(--ease-default);
  user-select: none;
  position: relative;
  overflow: hidden;
}

/* Ripple effect */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(255,255,255,0.35) 1%, transparent 1%) center/15000%;
  opacity: 0;
  transition: background 0.5s, opacity 0.8s;
}

.btn:active::after {
  background-size: 0%;
  opacity: 0.3;
  transition: 0s;
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Button Variants ── */

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-white);
}

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-accent {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}

.btn-outline:hover {
  background-color: var(--color-gray-100);
  border-color: var(--color-gray-400);
  color: var(--color-text-primary);
}

.btn-outline-primary {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline-primary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-outline-white {
  background-color: transparent;
  border-color: rgba(255,255,255,0.6);
  color: var(--color-white);
}

.btn-outline-white:hover {
  background-color: rgba(255,255,255,0.15);
  border-color: var(--color-white);
  color: var(--color-white);
}

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

.btn-white:hover {
  background-color: var(--color-primary-xlight);
  color: var(--color-primary-dark);
}

.btn-ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-primary);
}

.btn-ghost:hover {
  background-color: var(--color-primary-xlight);
  color: var(--color-primary-dark);
}

.btn-danger {
  background-color: var(--color-error);
  border-color: var(--color-error);
  color: var(--color-white);
}

.btn-danger:hover {
  background-color: #A82424;
  border-color: #A82424;
  color: var(--color-white);
}

/* ── Button Sizes ── */

.btn-sm {
  height: var(--btn-height-sm);
  padding: 0 var(--btn-padding-x-sm);
  font-size: var(--text-sm);
  gap: var(--space-1);
}

.btn-lg {
  height: var(--btn-height-lg);
  padding: 0 var(--btn-padding-x-lg);
  font-size: var(--text-lg);
}

.btn-xl {
  height: var(--btn-height-xl);
  padding: 0 calc(var(--btn-padding-x-lg) * 1.25);
  font-size: var(--text-xl);
}

.btn-pill {
  border-radius: var(--btn-radius-pill);
}

.btn-square {
  width: var(--btn-height-md);
  padding: 0;
}

.btn-square.btn-sm { width: var(--btn-height-sm); }
.btn-square.btn-lg { width: var(--btn-height-lg); }

.btn-block {
  width: 100%;
}

/* Loading state */
.btn-loading {
  pointer-events: none;
  opacity: 0.8;
}

.btn-loading::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-right: var(--space-2);
}

/* Button icon */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon svg {
  flex-shrink: 0;
}

/* Button group */
.btn-group {
  display: inline-flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* ══════════════════════════════════════════════════════════════════════════════
   CARDS
   ══════════════════════════════════════════════════════════════════════════════ */

.card {
  background: var(--card-bg);
  border: var(--card-border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--duration-base) var(--ease-default),
              transform var(--duration-base) var(--ease-default);
  position: relative;
  overflow: hidden;
}

.card-hover:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-3px);
}

.card-flat {
  box-shadow: none;
  border: var(--card-border);
}

.card-elevated {
  box-shadow: var(--shadow-xl);
  border: none;
}

/* Card parts */
.card-img {
  margin: calc(-1 * var(--card-padding));
  margin-bottom: var(--card-padding);
  overflow: hidden;
  border-radius: var(--card-radius) var(--card-radius) 0 0;
}

.card-img img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-default);
}

.card-hover:hover .card-img img {
  transform: scale(1.04);
}

.card-header {
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  font-family: var(--font-display);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-2);
}

.card-body {
  flex: 1;
}

.card-footer {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

/* Card layout variants */
.card-horizontal {
  display: flex;
  gap: var(--space-5);
  align-items: flex-start;
}

.card-horizontal .card-img {
  margin: calc(-1 * var(--card-padding));
  margin-right: 0;
  border-radius: var(--card-radius) 0 0 var(--card-radius);
  flex-shrink: 0;
  width: 200px;
}

.card-horizontal .card-img img {
  width: 200px;
  height: 100%;
  min-height: 160px;
  border-radius: var(--card-radius) 0 0 var(--card-radius);
}

/* Event card */
.event-card {
  display: flex;
  flex-direction: column;
}

.event-card-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.event-card-date-month {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1;
}

.event-card-date-day {
  font-size: var(--text-2xl);
  font-weight: var(--weight-black);
  font-family: var(--font-display);
  line-height: 1;
  margin-top: 2px;
}

.event-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.event-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.event-meta-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-primary);
}

/* News card */
.news-card-category {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-3);
}

/* Member card */
.member-card {
  text-align: center;
}

.member-card .avatar {
  margin: 0 auto var(--space-4);
}

.member-card-name {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-1);
}

.member-card-role {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-3);
}

/* Stat card */
.stat-card {
  text-align: center;
}

.stat-card-icon {
  width: 56px;
  height: 56px;
  background: var(--color-primary-xlight);
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

.stat-card-icon svg {
  width: 28px;
  height: 28px;
}

.stat-card-number {
  font-size: var(--text-5xl);
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-card-label {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}

/* ══════════════════════════════════════════════════════════════════════════════
   FORMS
   ══════════════════════════════════════════════════════════════════════════════ */

.form-group {
  margin-bottom: var(--space-5);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--label-size);
  font-weight: var(--label-weight);
  color: var(--label-color);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.form-label.required::after {
  content: ' *';
  color: var(--color-error);
  font-weight: var(--weight-bold);
}

.form-control {
  display: block;
  width: 100%;
  height: var(--input-height);
  padding: 0 var(--input-padding-x);
  font-size: var(--text-base);
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background-color: var(--input-bg);
  border: var(--input-border);
  border-radius: var(--input-radius);
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default);
  line-height: 1;
}

.form-control::placeholder {
  color: var(--color-gray-400);
}

.form-control:focus {
  outline: none;
  border: var(--input-border-focus);
  box-shadow: var(--input-shadow-focus);
  background-color: var(--input-bg-focus);
}

.form-control.error,
.form-control:invalid:not(:placeholder-shown) {
  border: var(--input-border-error);
}

.form-control:disabled {
  background-color: var(--color-gray-100);
  color: var(--color-text-disabled);
  cursor: not-allowed;
}

/* Textarea */
textarea.form-control {
  height: auto;
  min-height: 120px;
  padding: var(--space-3) var(--input-padding-x);
  resize: vertical;
  line-height: var(--leading-relaxed);
}

/* Select */
select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6' stroke='%236B6B73' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: calc(var(--input-padding-x) + 24px);
  cursor: pointer;
}

/* Input with icon */
.input-wrapper {
  position: relative;
}

.input-icon-left  .form-control { padding-left: calc(var(--input-padding-x) + 28px); }
.input-icon-right .form-control { padding-right: calc(var(--input-padding-x) + 28px); }

.input-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  pointer-events: none;
  width: 18px;
  height: 18px;
}

.input-icon-left  .input-icon { left: var(--space-3); }
.input-icon-right .input-icon { right: var(--space-3); }

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-check-input {
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-check-label {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  cursor: pointer;
  line-height: 1.5;
}

/* Custom checkbox */
.checkbox {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.checkbox input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-box {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  transition: var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.checkbox input:checked ~ .checkbox-box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-box::after {
  content: '';
  width: 5px;
  height: 9px;
  border: 2px solid white;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translateY(-1px);
  display: none;
}

.checkbox input:checked ~ .checkbox-box::after {
  display: block;
}

/* Form feedback */
.form-hint {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-2);
  line-height: 1.4;
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.form-success {
  font-size: var(--text-sm);
  color: var(--color-success);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Character counter */
.form-counter {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
  text-align: right;
}

/* Form section */
.form-section {
  padding-bottom: var(--space-8);
  margin-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.form-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

.form-section-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-primary-xlight);
}

/* ══════════════════════════════════════════════════════════════════════════════
   BADGES & TAGS
   ══════════════════════════════════════════════════════════════════════════════ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: var(--badge-padding);
  border-radius: var(--badge-radius);
  font-size: var(--badge-font-size);
  font-weight: var(--badge-font-weight);
  font-family: var(--font-body);
  line-height: 1.5;
  white-space: nowrap;
}

.badge-primary  { background: var(--color-primary-xlight); color: var(--color-primary-dark); }
.badge-secondary{ background: var(--color-secondary-xlight); color: var(--color-secondary-dark); }
.badge-accent   { background: var(--color-accent-xlight); color: var(--color-accent-dark); }
.badge-success  { background: var(--color-success-light); color: var(--color-success); }
.badge-warning  { background: var(--color-warning-light); color: var(--color-warning); }
.badge-error    { background: var(--color-error-light); color: var(--color-error); }
.badge-info     { background: var(--color-info-light); color: var(--color-info); }
.badge-neutral  { background: var(--color-gray-100); color: var(--color-gray-700); }

/* Solid badges */
.badge-solid-primary  { background: var(--color-primary); color: white; }
.badge-solid-success  { background: var(--color-success); color: white; }
.badge-solid-warning  { background: var(--color-warning); color: white; }
.badge-solid-error    { background: var(--color-error); color: white; }

/* Status dot */
.badge-dot::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  display: inline-block;
}

/* ══════════════════════════════════════════════════════════════════════════════
   ALERTS & NOTIFICATIONS
   ══════════════════════════════════════════════════════════════════════════════ */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.alert-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
}

.alert-content { flex: 1; }

.alert-title {
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-1);
  font-size: var(--text-base);
}

.alert-success {
  background: var(--color-success-light);
  border-color: rgba(26,122,74,0.2);
  color: var(--color-success);
}

.alert-warning {
  background: var(--color-warning-light);
  border-color: rgba(212,128,10,0.2);
  color: var(--color-warning);
}

.alert-error {
  background: var(--color-error-light);
  border-color: rgba(198,43,43,0.2);
  color: var(--color-error);
}

.alert-info {
  background: var(--color-info-light);
  border-color: rgba(26,95,168,0.2);
  color: var(--color-info);
}

/* Toast notifications */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--color-gray-900);
  color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  min-width: 280px;
  max-width: 420px;
  pointer-events: auto;
  animation: toast-in var(--duration-slow) var(--ease-spring) forwards;
}

.toast.toast-success { background: var(--color-success); }
.toast.toast-error   { background: var(--color-error); }
.toast.toast-warning { background: var(--color-warning); }

.toast.toast-exit {
  animation: toast-out var(--duration-base) var(--ease-in) forwards;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(100%) scale(0.9); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes toast-out {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(100%); }
}

/* ══════════════════════════════════════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  height: var(--header-height);
  background: var(--header-bg);
  border-bottom: var(--header-border);
  backdrop-filter: var(--header-backdrop);
  -webkit-backdrop-filter: var(--header-backdrop);
  transition: 
    height var(--duration-base) var(--ease-default),
    background-color var(--duration-base) var(--ease-default),
    box-shadow var(--duration-base) var(--ease-default);
}

.navbar.scrolled {
  height: var(--header-height-scrolled);
  background: var(--header-bg-scrolled);
  box-shadow: var(--header-shadow-scrolled);
}

.navbar-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Logo */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-logo {
  height: 40px;
  width: auto;
  transition: height var(--duration-base) var(--ease-default);
}

.navbar.scrolled .navbar-logo {
  height: 34px;
}

.navbar-brand-text {
  display: flex;
  flex-direction: column;
}

.navbar-brand-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  line-height: 1.1;
}

.navbar-brand-tagline {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  letter-spacing: var(--tracking-wide);
  line-height: 1;
}

/* Nav links */
.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: 0;
  white-space: nowrap;
  transition: color var(--duration-fast) var(--ease-default),
              background var(--duration-fast) var(--ease-default);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-surface);
}

.nav-link.active {
  color: var(--color-primary);
  font-weight: var(--weight-semibold);
  background: var(--color-primary-xlight);
}

/* Active underline — full width, bottom of block */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--duration-fast) var(--ease-default);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-dropdown-toggle::after {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6' stroke='currentColor' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  transition: transform var(--duration-fast) var(--ease-default);
  opacity: 0.6;
}

.nav-dropdown:hover .nav-dropdown-toggle::after,
.nav-dropdown.open .nav-dropdown-toggle::after {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--nav-dropdown-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--nav-dropdown-radius);
  box-shadow: var(--nav-dropdown-shadow);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px) scale(0.97);
  transform-origin: top center;
  transition: 
    opacity var(--duration-base) var(--ease-default),
    transform var(--duration-base) var(--ease-default),
    visibility var(--duration-base);
  z-index: var(--z-dropdown);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0) scale(1);
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-base);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: background-color var(--duration-fast) var(--ease-default),
              color var(--duration-fast) var(--ease-default);
}

.nav-dropdown-item:hover {
  background: var(--color-primary-xlight);
  color: var(--color-primary);
}

.nav-dropdown-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--color-primary);
  opacity: 0.7;
}

.nav-dropdown-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-2) 0;
}

/* Navbar actions */
.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Mobile toggle */
.navbar-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  cursor: pointer;
  border-radius: var(--radius-base);
  transition: background-color var(--duration-fast);
}

.navbar-toggle:hover {
  background: var(--color-gray-100);
}

.navbar-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-default),
              opacity var(--duration-base);
}

.navbar-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar-toggle.open span:nth-child(2) { opacity: 0; }
.navbar-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ══════════════════════════════════════════════════════════════════════════════
   MODALS
   ══════════════════════════════════════════════════════════════════════════════ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-default),
              visibility var(--duration-base);
  backdrop-filter: blur(4px);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-default),
              visibility var(--duration-base);
}

.modal.open {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: scale(0.96) translateY(8px);
  transition: transform var(--duration-slow) var(--ease-spring);
}

.modal.open .modal-dialog {
  transform: scale(1) translateY(0);
}

.modal-dialog-lg { max-width: 720px; }
.modal-dialog-xl { max-width: 960px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  font-family: var(--font-display);
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-base);
  color: var(--color-text-tertiary);
  transition: background-color var(--duration-fast), color var(--duration-fast);
  cursor: pointer;
  background: none;
  border: none;
  flex-shrink: 0;
}

.modal-close:hover {
  background: var(--color-gray-100);
  color: var(--color-text-primary);
}

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════════════════════════
   TABLES
   ══════════════════════════════════════════════════════════════════════════════ */

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--table-bg);
}

.table {
  width: 100%;
  font-size: var(--text-sm);
}

.table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--table-header-color);
  background: var(--table-header-bg);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.table th:first-child { border-radius: var(--radius-lg) 0 0 0; }
.table th:last-child  { border-radius: 0 var(--radius-lg) 0 0; }

.table td {
  padding: var(--space-4);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table tbody tr {
  transition: background-color var(--duration-fast) var(--ease-default);
}

.table tbody tr:hover {
  background: var(--table-row-hover);
}

.table-striped tbody tr:nth-child(even) {
  background: var(--table-bg-alt);
}

.table-sortable th.sortable {
  cursor: pointer;
  user-select: none;
}

.table-sortable th.sortable:hover {
  background: var(--color-gray-200);
}

.table-sortable th .sort-icon {
  opacity: 0.4;
  margin-left: var(--space-2);
  font-size: 10px;
}

.table-sortable th.sort-asc .sort-icon,
.table-sortable th.sort-desc .sort-icon {
  opacity: 1;
  color: var(--color-primary);
}

/* ══════════════════════════════════════════════════════════════════════════════
   PAGINATION
   ══════════════════════════════════════════════════════════════════════════════ */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  flex-wrap: wrap;
}

.pagination-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  text-decoration: none;
  transition: var(--transition-base);
  background: var(--color-white);
}

.pagination-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-xlight);
}

.pagination-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  font-weight: var(--weight-semibold);
}

.pagination-btn.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.pagination-ellipsis {
  padding: 0 var(--space-2);
  color: var(--color-text-tertiary);
}

/* ══════════════════════════════════════════════════════════════════════════════
   TABS
   ══════════════════════════════════════════════════════════════════════════════ */

.tabs {
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar { display: none; }

.tab-btn {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-tertiary);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--duration-fast), border-color var(--duration-fast);
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  margin-bottom: -1px;
}

.tab-btn:hover {
  color: var(--color-text-primary);
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: var(--weight-semibold);
}

.tab-panel {
  display: none;
  padding-top: var(--space-6);
}

.tab-panel.active {
  display: block;
}

/* Pill tabs */
.tabs-pill {
  border-bottom: none;
  background: var(--color-gray-100);
  padding: var(--space-1);
  border-radius: var(--radius-md);
  display: inline-flex;
  gap: var(--space-1);
}

.tabs-pill .tab-btn {
  border-bottom: none;
  border-radius: var(--radius-base);
  margin-bottom: 0;
  padding: var(--space-2) var(--space-4);
}

.tabs-pill .tab-btn.active {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  color: var(--color-primary);
}

/* ══════════════════════════════════════════════════════════════════════════════
   PROGRESS
   ══════════════════════════════════════════════════════════════════════════════ */

.progress {
  height: 8px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--duration-slow) var(--ease-default);
}

.progress-bar-success  { background: var(--color-success); }
.progress-bar-warning  { background: var(--color-warning); }
.progress-bar-accent   { background: var(--color-accent); }
.progress-bar-gradient { background: var(--gradient-primary); }

/* ══════════════════════════════════════════════════════════════════════════════
   ACCORDION
   ══════════════════════════════════════════════════════════════════════════════ */

.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  background: var(--color-white);
  transition: background-color var(--duration-fast);
  gap: var(--space-4);
}

.accordion-header:hover {
  background: var(--color-gray-100);
}

.accordion-title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
}

.accordion-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-gray-400);
  transition: transform var(--duration-base) var(--ease-default);
}

.accordion-item.open .accordion-header {
  background: var(--color-primary-xlight);
}

.accordion-item.open .accordion-title {
  color: var(--color-primary);
}

.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-default);
}

.accordion-item.open .accordion-body {
  max-height: 1000px;
}

.accordion-body-inner {
  padding: var(--space-2) var(--space-6) var(--space-6);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ══════════════════════════════════════════════════════════════════════════════
   TOOLTIPS
   ══════════════════════════════════════════════════════════════════════════════ */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-3);
  background: var(--color-gray-900);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-base);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-fast), visibility var(--duration-fast),
              transform var(--duration-fast) var(--ease-default);
  transform: translateX(-50%) translateY(4px);
  z-index: var(--z-tooltip);
}

[data-tooltip]:hover::before {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ══════════════════════════════════════════════════════════════════════════════
   SKELETON LOADER
   ══════════════════════════════════════════════════════════════════════════════ */

.skeleton {
  background: linear-gradient(90deg, 
    var(--color-gray-200) 25%, 
    var(--color-gray-100) 50%, 
    var(--color-gray-200) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-wave 1.6s infinite;
  border-radius: var(--radius-base);
}

@keyframes skeleton-wave {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: var(--space-3);
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 16/9;
}

/* ══════════════════════════════════════════════════════════════════════════════
   EMPTY STATES
   ══════════════════════════════════════════════════════════════════════════════ */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16) var(--space-8);
  gap: var(--space-4);
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  background: var(--color-primary-xlight);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.empty-state-icon svg {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
}

.empty-state-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
}

.empty-state-text {
  color: var(--color-text-tertiary);
  max-width: 360px;
}

/* ══════════════════════════════════════════════════════════════════════════════
   SOCIAL SHARE BUTTONS
   ══════════════════════════════════════════════════════════════════════════════ */

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-base);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: white;
  text-decoration: none;
  transition: opacity var(--duration-fast), transform var(--duration-fast);
}

.social-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  color: white;
}

.social-btn-facebook { background: #1877F2; }
.social-btn-twitter  { background: #000000; }
.social-btn-linkedin { background: #0A66C2; }
.social-btn-email    { background: var(--color-gray-700); }
.social-btn-whatsapp { background: #25D366; }

/* Social link icons (footer/nav) */
.social-links {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-tertiary);
  background: var(--color-gray-100);
  transition: background-color var(--duration-fast), color var(--duration-fast),
              transform var(--duration-fast) var(--ease-bounce);
}

.social-link:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.1);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

/* ══════════════════════════════════════════════════════════════════════════════
   SEARCH BAR
   ══════════════════════════════════════════════════════════════════════════════ */

.search-bar {
  display: flex;
  align-items: center;
  background: var(--color-white);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-full);
  padding: 0 var(--space-4);
  gap: var(--space-2);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.search-bar:focus-within {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.search-bar input {
  flex: 1;
  border: none;
  background: none;
  padding: var(--space-3) 0;
  font-size: var(--text-base);
  color: var(--color-text-primary);
}

.search-bar input:focus { outline: none; }
.search-bar input::placeholder { color: var(--color-gray-400); }

.search-bar svg {
  width: 18px;
  height: 18px;
  color: var(--color-gray-400);
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════════════════════════
   DONATION AMOUNT SELECTOR
   ══════════════════════════════════════════════════════════════════════════════ */

.amount-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.amount-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-2);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  cursor: pointer;
  background: var(--color-white);
  transition: var(--transition-base);
}

.amount-btn:hover,
.amount-btn.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-xlight);
  color: var(--color-primary);
}

.amount-btn.selected {
  box-shadow: var(--shadow-focus);
}

/* ══════════════════════════════════════════════════════════════════════════════
   SPONSOR TIER DISPLAY
   ══════════════════════════════════════════════════════════════════════════════ */

.sponsor-tier {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}

.sponsor-tier:last-child { border-bottom: none; }

.sponsor-tier-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-6);
  text-align: center;
}

.sponsor-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
}

.sponsor-logo-link {
  opacity: 0.65;
  transition: opacity var(--duration-base), filter var(--duration-base), transform var(--duration-base) var(--ease-bounce);
  filter: grayscale(100%);
}

.sponsor-logo-link:hover {
  opacity: 1;
  filter: grayscale(0%);
  transform: scale(1.05);
}

.sponsor-logo-platinum img { max-height: 70px; }
.sponsor-logo-gold img     { max-height: 55px; }
.sponsor-logo-silver img   { max-height: 44px; }
.sponsor-logo-bronze img   { max-height: 36px; }