/* ============================================
   CGPA TO PERCENTAGE CONVERTER STYLES
   Styles for the simple converter on homepage
   ============================================ */

/* ===== HERO SECTION ===== */
.hero-section {
  padding: 20px 0 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 20px;
  position: relative;
}

.title-line {
  display: block;
  margin: 5px 0;
}

.highlight-bg {
  background: var(--brutal-pink);
  color: var(--brutal-white);
  padding: 0 20px;
  display: inline-block;
  transform: rotate(-1deg);
  box-shadow: var(--brutal-shadow) var(--shadow-color);
  border: var(--brutal-border) solid var(--border-color);
}

.hero-subtitle {
  font-size: 1.3rem;
  max-width: 700px;
  margin: 0 auto 40px;
  font-weight: 500;
}

.highlight-text {
  background: var(--brutal-yellow);
  padding: 2px 8px;
  border: 2px solid var(--border-color);
  font-weight: 700;
}

/* ===== CONVERTER SECTION ===== */
.converter-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px;
  background: var(--brutal-white);
  border: var(--brutal-border) solid var(--border-color);
  box-shadow: var(--brutal-shadow-hover) var(--shadow-color);
  position: relative;
  transition: all var(--transition-speed) ease;
}

body.dark-mode .converter-container {
  background: var(--brutal-gray);
}

.converter-container:hover {
  transform: translateY(-5px);
  box-shadow: 12px 12px 0 var(--shadow-color);
}

.converter-input-group {
  margin-bottom: 20px;
}

.converter-label {
  font-weight: 700;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 15px;
  display: block;
}

.converter-scale-group {
  margin-bottom: 20px;
}

.converter-scale-label {
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
  display: block;
  text-align: center;
}

.converter-scale-select {
  width: 100%;
  padding: 15px 20px;
  font-size: 1rem;
  font-weight: 700;
  font-family: 'IBM Plex Sans', sans-serif;
  text-align: center;
  border: 4px solid var(--border-color);
  background: var(--brutal-cyan);
  color: var(--brutal-black);
  box-shadow: 4px 4px 0 var(--shadow-color);
  transition: all var(--transition-speed) ease;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 15px center;
  background-size: 20px;
  padding-right: 45px;
}

body.dark-mode .converter-scale-select {
  background-color: var(--brutal-purple);
  color: var(--brutal-white);
}

.converter-scale-select:focus {
  outline: none;
  border-color: var(--brutal-purple);
  transform: translateY(-2px);
  box-shadow: 6px 6px 0 var(--shadow-color);
}

.converter-scale-select:hover {
  transform: translateY(-2px);
  box-shadow: 6px 6px 0 var(--shadow-color);
}

.converter-input {
  width: 100%;
  padding: 20px;
  font-size: 3rem;
  font-weight: 900;
  font-family: 'Geist Mono', monospace;
  text-align: center;
  border: 4px solid var(--border-color);
  background: var(--brutal-white);
  color: var(--brutal-black);
  box-shadow: 6px 6px 0 var(--shadow-color);
  transition: all var(--transition-speed) ease;
}

body.dark-mode .converter-input {
  background: var(--brutal-dark-bg);
  color: var(--brutal-white);
}

.converter-input:focus {
  outline: none;
  border-color: var(--brutal-pink);
  transform: translateY(-2px);
  box-shadow: 8px 8px 0 var(--shadow-color);
}

.converter-arrow {
  text-align: center;
  font-size: 3rem;
  margin: 20px 0;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.converter-result {
  padding: 30px;
  background: var(--brutal-pink);
  color: var(--brutal-white);
  border: var(--brutal-border) solid var(--border-color);
  box-shadow: var(--brutal-shadow) var(--shadow-color);
  text-align: center;
  transition: all var(--transition-speed) ease;
  animation: resultPop 0.5s ease;
}

@keyframes resultPop {
  0% { transform: scale(0) rotate(-5deg); }
  50% { transform: scale(1.05) rotate(2deg); }
  100% { transform: scale(1) rotate(0deg); }
}

.converter-result:hover {
  transform: rotate(-2deg);
  box-shadow: var(--brutal-shadow-hover) var(--shadow-color);
}

.result-label {
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.result-value {
  font-family: 'Geist Mono', monospace;
  font-weight: 900;
  font-size: 4rem;
  animation: numberCount 0.5s ease;
}

@keyframes numberCount {
  from { opacity: 0; transform: scale(0.5); }
  to { opacity: 1; transform: scale(1); }
}

.converter-note {
  margin-top: 20px;
  padding: 15px;
  background: var(--brutal-yellow);
  border: 3px solid var(--border-color);
  font-weight: 500;
  font-size: 0.95rem;
}

.converter-cta {
  text-align: center;
  margin-top: 30px;
}

/* ===== HERO STATS ===== */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  margin-top: 25px;
  margin-bottom: 1px;
}

.stat-item {
  background: var(--brutal-white);
  border: var(--brutal-border) solid var(--border-color);
  box-shadow: var(--brutal-shadow) var(--shadow-color);
  padding: 20px 30px;
  min-width: 120px;
  transition: all var(--transition-speed) ease;
}

.stat-item:nth-child(1) {
  background: var(--brutal-blue);
  color: var(--brutal-white);
}
.stat-item:nth-child(2) {
  background: var(--brutal-purple);
  color: var(--brutal-white);
}
.stat-item:nth-child(3) {
  background: var(--brutal-orange);
  color: var(--brutal-white);
}

.stat-item:hover {
  transform: translateY(-5px) rotate(-3deg);
  box-shadow: var(--brutal-shadow-hover) var(--shadow-color);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  font-family: 'Geist Mono', monospace;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 700;
  margin-top: 5px;
}

/* ===== FEATURES SECTION ===== */
.features-section {
  margin-top: 60px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.feature-card {
  background: var(--brutal-white);
  border: var(--brutal-border) solid var(--border-color);
  box-shadow: var(--brutal-shadow) var(--shadow-color);
  padding: 30px;
  text-align: center;
  transition: all var(--transition-speed) ease;
}

body.dark-mode .feature-card {
  background: var(--brutal-gray);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--brutal-shadow-hover) var(--shadow-color);
}

.feature-card:nth-child(1) {
  border-top: 8px solid var(--brutal-blue);
}

.feature-card:nth-child(2) {
  border-top: 8px solid var(--brutal-green);
}

.feature-card:nth-child(3) {
  border-top: 8px solid var(--brutal-purple);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 15px;
}

.feature-title {
  font-weight: 900;
  font-size: 1.2rem;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.feature-description {
  font-weight: 500;
  line-height: 1.6;
}

/* ===== FORMULA BOXES ===== */
.brutal-formula-box {
  border: var(--brutal-border) solid var(--border-color);
  padding: 25px;
  box-shadow: var(--brutal-shadow) var(--shadow-color);
  transition: all var(--transition-speed) ease;
  position: relative;
}

.brutal-formula-box:hover {
  transform: translateX(5px);
  box-shadow: 8px 8px 0 var(--shadow-color);
}

.formula-primary {
  background: var(--brutal-yellow);
  border-top: 8px solid var(--brutal-orange);
}

.formula-secondary {
  background: var(--brutal-cyan);
  border-top: 8px solid var(--brutal-blue);
}

.formula-label {
  font-weight: 900;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
  color: var(--brutal-black);
}

.formula-text {
  font-family: 'Geist Mono', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--brutal-black);
}

.brutal-info-text {
  font-weight: 500;
  line-height: 1.6;
}

.brutal-info-text p {
  margin: 0;
}

/* ===== GRADE TABLE STYLES ===== */
/* Grade Row Colors */
.grade-row-1 { background: linear-gradient(90deg, var(--brutal-pink) 5px, var(--brutal-white) 5px); }
.grade-row-2 { background: linear-gradient(90deg, var(--brutal-purple) 5px, var(--brutal-white) 5px); }
.grade-row-3 { background: linear-gradient(90deg, var(--brutal-blue) 5px, var(--brutal-white) 5px); }
.grade-row-4 { background: linear-gradient(90deg, var(--brutal-cyan) 5px, var(--brutal-white) 5px); }
.grade-row-5 { background: linear-gradient(90deg, var(--brutal-green) 5px, var(--brutal-white) 5px); }
.grade-row-6 { background: linear-gradient(90deg, var(--brutal-yellow) 5px, var(--brutal-white) 5px); }

body.dark-mode .grade-row-1,
body.dark-mode .grade-row-2,
body.dark-mode .grade-row-3,
body.dark-mode .grade-row-4,
body.dark-mode .grade-row-5,
body.dark-mode .grade-row-6 {
  background: linear-gradient(90deg, var(--brutal-pink) 5px, var(--brutal-gray) 5px);
}

.grade-badge {
  display: inline-block;
  padding: 5px 15px;
  border: 3px solid var(--border-color);
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: 3px 3px 0 var(--shadow-color);
}

.grade-o { background: var(--brutal-pink); color: var(--brutal-white); }
.grade-a-plus { background: var(--brutal-purple); color: var(--brutal-white); }
.grade-a { background: var(--brutal-blue); color: var(--brutal-white); }
.grade-b-plus { background: var(--brutal-cyan); color: var(--brutal-black); }
.grade-b { background: var(--brutal-green); color: var(--brutal-black); }
.grade-c { background: var(--brutal-yellow); color: var(--brutal-black); }

.points-cell {
  font-family: 'Geist Mono', monospace;
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--brutal-pink);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 991px) {
  .hero-title {
    font-size: 3rem;
  }

  .stat-number {
    font-size: 2rem;
  }
}

@media (max-width: 767px) {
  .hero-section {
    padding: 0 0 15px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 15px;
  }

  .hero-stats {
    gap: 8px;
    margin-top: 0;
  }

  .stat-item {
    min-width: 70px;
    padding: 8px 12px;
  }

  .stat-number {
    font-size: 1.1rem;
  }

  .stat-label {
    font-size: 0.65rem;
  }

  .converter-container {
    padding: 20px;
  }

  .converter-input {
    font-size: 2rem;
    padding: 15px;
  }

  .converter-scale-select {
    font-size: 0.85rem;
    padding: 12px 35px 12px 15px;
    background-position: right 10px center;
    background-size: 16px;
  }

  .converter-arrow {
    font-size: 2rem;
    margin: 10px 0;
  }

  .result-value {
    font-size: 2.5rem !important;
  }

  .converter-result {
    padding: 20px;
  }

  .features-section {
    margin-top: 40px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .feature-card {
    padding: 20px;
  }

  .formula-text {
    font-size: 1rem;
  }

  .grade-badge {
    padding: 3px 10px;
    font-size: 0.9rem;
  }
}

@media (max-width: 575px) {
  .hero-section {
    padding: 0 0 15px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 10px;
  }

  .hero-stats {
    gap: 5px;
  }

  .stat-item {
    min-width: 60px;
    padding: 6px 10px;
  }

  .stat-number {
    font-size: 1rem;
  }

  .stat-label {
    font-size: 0.6rem;
  }

  .converter-container {
    padding: 15px;
  }

  .converter-input {
    font-size: 1.5rem;
    padding: 10px;
  }

  .converter-scale-select {
    font-size: 0.75rem;
    padding: 10px 30px 10px 10px;
  }

  .result-value {
    font-size: 2rem !important;
  }
}