:root {
  --color-navy: #002D62;       /* Primary Accent (Dark Navy) */
  --color-blue: #004B97;       /* Brand Primary (SZTU Deep Blue) */
  --color-light-blue: #0072CE; /* Highlight Blue */
  --color-bg-gray: #F5F7FA;    /* Background Gray */
  --color-text-charcoal: #222222;
  --color-text-slate: #6E6E73;
  --color-card-bg: #FFFFFF;
  --color-border: #E5E5EA;
  --color-red-accent: #D9381E; /* Danger Accent */
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --border-radius-sm: 8px;
  --border-radius-md: 14px;
  --border-radius-lg: 20px;
  --box-shadow-card: 0 8px 30px rgba(0, 0, 0, 0.05);
  --box-shadow-focus: 0 0 0 4px rgba(0, 114, 206, 0.15);
  --transition-smooth: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: var(--font-body);
  color: var(--color-text-charcoal);
  background-color: var(--color-bg-gray);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5 {
  font-family: var(--font-title);
  color: var(--color-navy);
  font-weight: 600;
}

.app-header {
  background-color: var(--color-navy);
  color: #FFFFFF;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;


  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
.logo {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.logo-accent {
  color: var(--color-light-blue);
}
.tab-nav {
  display: flex;
  gap: 0.5rem;
}
.nav-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.6rem 1.2rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
}
.nav-btn:hover {
  color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.1);
}
.nav-btn.active {
  color: #FFFFFF;
  background-color: var(--color-blue);
}
.app-container {
  max-width: 1280px;
  margin: 2rem auto;
  padding: 0 1.5rem;
  min-height: calc(100vh - 180px);
}
/* COMPONENTS: CARDS
   ----------------------------------------------------------------------------- */
.card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--box-shadow-card);


  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hero-card {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-blue) 100%);
  color: #FFFFFF;
  border: none;
  text-align: center;
  padding: 3rem 2rem;
}
.hero-title {
  color: #FFFFFF;
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}
.hero-subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
}
.card-title {
  font-size: 1.3rem;
  margin-bottom: 1.2rem;
  border-bottom: 2px solid var(--color-bg-gray);
  padding-bottom: 0.6rem;
}
.desc-text {
  font-size: 0.95rem;
  color: var(--color-text-slate);
  margin-bottom: 1.5rem;
}
.highlight-warn {
  color: var(--color-red-accent);
}
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 768px) {
  .grid-2col {
    grid-template-columns: 1fr;
  }
  .app-header {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
}
/* COMPONENTS: FORMS & INPUTS
   ----------------------------------------------------------------------------- */
.form-vertical {


  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-navy);
}
input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-bg-gray);
  color: var(--color-text-charcoal);
  min-height: 48px;
  outline: none;
  transition: var(--transition-smooth);
  width: 100%;
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-blue);
  background-color: #FFFFFF;
  box-shadow: var(--box-shadow-focus);
}
.checkbox-container-simple {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: 500;
}


.checkbox-container-simple input {
  width: 1.2rem;
  height: 1.2rem;
  accent-color: var(--color-blue);
}
.member-row {
  display: grid;
  grid-template-columns: 2fr 2fr 1fr auto;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.5rem;
}
.btn-remove-member {
  background: transparent;
  color: var(--color-red-accent);
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  font-size: 1.2rem;
}
.contribution-total-hint {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-slate);
}
.contribution-valid {
  color: green;
}
.contribution-invalid {
  color: var(--color-red-accent);
}
/* COMPONENTS: BUTTONS
   ----------------------------------------------------------------------------- */
.btn {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-sm);
  border: none;
  cursor: pointer;
  text-align: center;
  transition: var(--transition-smooth);
}
.btn-primary {
  background-color: var(--color-blue);
  color: #FFFFFF;
}
.btn-primary:hover {
  background-color: var(--color-navy);


}
.btn-accent {
  background-color: var(--color-light-blue);
  color: #FFFFFF;
}
.btn-accent:hover {
  background-color: var(--color-blue);
}
.btn-secondary {
  background-color: var(--color-bg-gray);
  color: var(--color-navy);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  background-color: var(--color-border);
}
.btn-danger {
  background-color: var(--color-red-accent);
  color: #FFFFFF;
}
.btn-danger:hover {
  background-color: #b02410;
}
.btn-sm {
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
  min-height: auto;
}
.btn-block {
  display: block;
  width: 100%;
}
.btn-group {
  display: flex;
  gap: 0.8rem;
}
.btn-group-right {
  display: flex;
  justify-content: flex-end;
  gap: 0.8rem;
}
/* COMPONENTS: TABLES
   ----------------------------------------------------------------------------- */
.table-container {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
}
.data-table {


  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  text-align: left;
}
.data-table th,
.data-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
}
.data-table th {
  background-color: var(--color-navy);
  color: #FFFFFF;
  font-weight: 600;
}
.data-table tbody tr:nth-child(even) {
  background-color: var(--color-bg-gray);
}
.data-table tbody tr:hover {
  background-color: rgba(0, 114, 206, 0.05);
}
/* COMPONENTS: QUEUE LIST
   ----------------------------------------------------------------------------- */
.queue-status-text {
  font-size: 1.05rem;
  color: var(--color-text-slate);
  padding: 1rem;
  background-color: var(--color-bg-gray);
  border-radius: var(--border-radius-sm);
  text-align: center;
}
.queue-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-top: 1rem;
}
.queue-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background-color: var(--color-bg-gray);
  border-left: 5px solid var(--color-light-blue);
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}
.queue-item.active-item {


  border-left-color: var(--color-red-accent);
  background-color: rgba(217, 56, 30, 0.03);
}
.queue-num {
  font-family: var(--font-title);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-blue);
  margin-margin-inline-end: 1rem;
}
.queue-dice-badge {
  background-color: var(--color-blue);
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
}
/* 3D DICE ROTATING GRAPHICS
   ----------------------------------------------------------------------------- */
.dice-stage-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.dice-container {
  perspective: 600px;
  width: 100px;
  height: 100px;
  margin: 2.5rem auto;
}
.dice {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(-30deg) rotateY(45deg);
  transition: transform 1.8s cubic-bezier(0.19, 1, 0.22, 1);
}
.face {
  position: absolute;
  width: 100px;
  height: 100px;
  background: #FFFFFF;
  border: 3px solid var(--color-blue);
  color: var(--color-navy);
  font-family: var(--font-title);
  font-size: 2.2rem;
  font-weight: 700;


  text-align: center;
  line-height: 94px;
  border-radius: var(--border-radius-sm);
  box-shadow: inset 0 0 20px rgba(0, 75, 151, 0.08), 0 4px 15px rgba(0, 0, 0, 0.1);
}
.front  { transform: translateZ(50px); }
.back   { transform: rotateY(180deg) translateZ(50px); }
.right  { transform: rotateY(90deg) translateZ(50px); }
.left   { transform: rotateY(-90deg) translateZ(50px); }
.top    { transform: rotateX(90deg) translateZ(50px); }
.bottom { transform: rotateX(-90deg) translateZ(50px); }
.rolling {
  animation: spin 1.5s infinite linear;
}
@keyframes spin {
  0% { transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg); }
  100% { transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg); }
}
.dice-result-msg {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--color-blue);
  text-align: center;
  background-color: var(--color-bg-gray);
  padding: 0.5rem 1.5rem;
  border-radius: 20px;
}

.rubric-question-block {
  background-color: var(--color-bg-gray);
  border-left: 4px solid var(--color-blue);
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  padding: 1.2rem;
  margin-bottom: 1.2rem;
}
.rubric-question-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--color-navy);
}
.rubric-desc-levels {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--color-text-slate);


}
.rubric-desc-level {
  display: flex;
  gap: 0.5rem;
}
.rubric-desc-tag {
  font-weight: 700;
  color: var(--color-blue);
  white-space: nowrap;
}

.lock-card {
  max-width: 450px;
  margin: 3rem auto;
}
.text-center {
  text-align: center;
}
.info-banner {
  background: rgba(0, 114, 206, 0.06);
  border: 1px solid var(--color-light-blue);
  padding: 1rem 1.5rem;
}
.banner-body {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.admin-control-section {
  border-top: 1px solid var(--color-border);
  padding-top: 1.2rem;
  margin-top: 1.2rem;
}
.admin-control-section h3 {
  font-size: 1rem;
  margin-bottom: 0.8rem;
}
.toggle-group {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.switch-label {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  cursor: pointer;
}
.switch-label input {


  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--color-blue);
}
.rubric-edit-row {
  background-color: var(--color-bg-gray);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  margin-bottom: 1rem;
  position: relative;
}
.btn-delete-rubric-row {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: transparent;
  color: var(--color-red-accent);
  border: none;
  font-weight: bold;
  cursor: pointer;
}
.prof-status-hint {
  display: flex;
  align-items: center;
  font-weight: 600;
  color: var(--color-text-slate);
}

.hidden {
  display: none !important;
}
.margin-top-md {
  margin-top: 1.2rem;
}
.margin-top-lg {
  margin-top: 2rem;
}
.app-footer-text {
  text-align: center;
  color: var(--color-text-slate);
  font-size: 0.85rem;
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  background-color: #FFFFFF;
}