/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  background: #000;
  color: #0ff;
  font-family: 'Consolas', 'Monaco', monospace;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}

/* ===== MATRIX BACKGROUND EFFECTS ===== */
#matrix {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -4;
  opacity: 0.3;
  pointer-events: none;
}

#stars {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -3;
  pointer-events: none;
}

.eclipse {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(600px, 80vw);
  height: min(600px, 80vw);
  border-radius: 50%;
  background: radial-gradient(circle, #001111 0%, #000 70%);
  box-shadow: 0 0 200px #0ff, 0 0 400px #00ffff55;
  z-index: -2;
  animation: pulse 8s infinite ease-in-out;
  pointer-events: none;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 200px #0ff, 0 0 400px #00ffff55; transform: translate(-50%, -50%) scale(1); }
  50% { box-shadow: 0 0 350px #0ff, 0 0 600px #00ffff99; transform: translate(-50%, -50%) scale(1.05); }
}

.cursor-glow {
  position: fixed;
  width: min(400px, 50vw);
  height: min(400px, 50vw);
  background: radial-gradient(circle, rgba(0, 255, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  filter: blur(20px);
}

/* ===== BOOT SEQUENCE ===== */
#boot {
  position: fixed;
  width: 100%;
  height: 100vh;
  background: #000;
  color: #0f0;
  padding: clamp(20px, 5vw, 40px);
  z-index: 10000;
  font-size: clamp(12px, 3vw, 14px);
  overflow: hidden;
  font-family: 'Consolas', monospace;
  white-space: pre-line;
  line-height: 1.6;
  text-shadow: 0 0 5px #0f0;
  animation: bootFlicker 0.5s infinite;
}

@keyframes bootFlicker {
  0% { opacity: 1; }
  50% { opacity: 0.98; }
  100% { opacity: 1; }
}

#bootText::before {
  content: '> ';
  color: #0f0;
}

/* ===== WELCOME SCREEN ===== */
#welcome {
  position: fixed;
  width: 100%;
  height: 100vh;
  background: #000;
  z-index: 9000;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  transition: opacity 1.5s ease, visibility 1.5s ease;
  pointer-events: none;
}

#welcome:not(.hidden) {
  pointer-events: auto;
}

#welcome.hidden {
  opacity: 0;
  visibility: hidden;
}

#welcome h1 {
  font-size: clamp(1.5rem, 6vw, 3rem);
  text-align: center;
  letter-spacing: 3px;
  text-shadow: 0 0 20px #0ff, 0 0 40px #0ff, 0 0 60px #0ff;
  animation: glitch 3s infinite;
  margin-bottom: 40px;
  padding: 0 20px;
}

@keyframes glitch {
  0%, 100% { transform: skew(0deg, 0deg); opacity: 1; text-shadow: 0 0 20px #0ff, 0 0 40px #0ff; }
  95% { transform: skew(2deg, 1deg); opacity: 0.9; text-shadow: 3px 0 #ff00ff, -3px 0 #00ffff; }
  96% { transform: skew(-2deg, -1deg); text-shadow: 2px 0 #00ffff, -2px 0 #ff00ff; }
  97% { transform: skew(0deg, 0deg); }
}

#enterBtn {
  margin-top: 40px;
  padding: clamp(12px, 3vw, 18px) clamp(30px, 8vw, 50px);
  border: 2px solid #0ff;
  background: transparent;
  color: #0ff;
  font-size: clamp(1rem, 4vw, 1.2rem);
  cursor: pointer;
  border-radius: 50px;
  box-shadow: 0 0 20px #0ff, inset 0 0 20px rgba(0, 255, 255, 0.3);
  transition: all 0.3s ease;
  font-weight: bold;
  letter-spacing: 2px;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

#enterBtn:active {
  transform: scale(0.95);
  background: #0ff;
  color: #000;
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
  position: fixed;
  top: clamp(10px, 3vw, 20px);
  left: clamp(10px, 3vw, 20px);
  z-index: 2000;
}

.toggle-container {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 6px 12px;
  border-radius: 40px;
  border: 1px solid rgba(0, 255, 255, 0.3);
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.toggle-label {
  font-size: clamp(0.9rem, 3vw, 1.1rem);
  font-weight: 600;
  color: #0ff;
  text-shadow: 0 0 10px #0ff;
}

.toggle-switch {
  position: relative;
  width: clamp(50px, 10vw, 60px);
  height: clamp(24px, 5vw, 28px);
  background: linear-gradient(135deg, #00ffff, #0088ff);
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 15px #00ffff;
  -webkit-tap-highlight-color: transparent;
}

.toggle-switch::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: clamp(20px, 4vw, 24px);
  height: clamp(20px, 4vw, 24px);
  background: white;
  border-radius: 50%;
  transition: transform 0.3s ease;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

body.light-mode .toggle-switch::before {
  transform: translateX(clamp(26px, 5vw, 32px));
}

/* ===== DATE DISPLAY STYLES - CENTERED BETWEEN ELEMENTS ===== */
.date-display {
  position: fixed;
  center: clamp(15px, 8vw, 90px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  max-width: calc(100% - 200px); /* Prevents overlap with side elements */
}
  

.date-container {
  background: rgba(0, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 6px 12px;
  border-radius: 40px;
  border: 1px solid rgba(0, 255, 255, 0.3);
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
  display: flex;
  align-items: center;
  gap: 8px;
  color: #0ff;
  font-family: 'Consolas', monospace;
  font-size: clamp(0.8rem, 2.5vw, 0.9rem);
}

.date-container i {
  font-size: clamp(0.9rem, 3vw, 1rem);
  filter: drop-shadow(0 0 5px #0ff);
}

#currentDate, #currentTime {
  font-weight: bold;
  letter-spacing: 1px;
  text-shadow: 0 0 8px #0ff;
}

#currentTime {
  color: #fff;
  background: rgba(0, 255, 255, 0.2);
  padding: 2px 6px;
  border-radius: 20px;
}

/* ===== HAMBURGER MENU ===== */
.menu-toggle {
  position: fixed;
  top: clamp(10px, 3vw, 20px);
  right: clamp(10px, 3vw, 20px);
  width: auto;
  height: auto;
  padding: 8px 16px;
  background: rgba(0, 255, 255, 0.1);
  border: 2px solid #0ff;
  border-radius: 40px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2100;
  cursor: pointer;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.menu-toggle:active {
  transform: scale(0.95);
}

.hamburger-icon {
  width: clamp(20px, 5vw, 30px);
  height: clamp(16px, 4vw, 20px);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-icon span {
  display: block;
  width: 100%;
  height: 2px;
  background: #0ff;
  border-radius: 3px;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px #0ff;
}

.menu-toggle.open .hamburger-icon span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.open .hamburger-icon span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.menu-toggle.open .hamburger-icon span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.menu-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #0ff;
  font-weight: bold;
  font-size: clamp(0.9rem, 3vw, 1rem);
  letter-spacing: 1px;
}

.menu-badge i {
  font-size: clamp(1.1rem, 4vw, 1.3rem);
  filter: drop-shadow(0 0 10px #0ff);
}

/* ===== PRIMARY NAVIGATION ===== */
.primary-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(350px, 85%);
  height: 100vh;
  background: rgba(0, 20, 20, 0.98);
  backdrop-filter: blur(20px);
  border-left: 2px solid #0ff;
  box-shadow: -10px 0 50px rgba(0, 255, 255, 0.3);
  z-index: 2000;
  transition: right 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.primary-nav.open {
  right: 0;
}

.nav-header {
  padding: 20px;
  border-bottom: 2px solid #0ff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  position: sticky;
  top: 0;
  z-index: 1;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: clamp(1.1rem, 4vw, 1.3rem);
  font-weight: bold;
  color: #0ff;
  text-shadow: 0 0 10px #0ff;
}

.nav-logo i {
  font-size: clamp(1.5rem, 5vw, 2rem);
}

.nav-close {
  background: transparent;
  border: none;
  color: #ff4444;
  font-size: clamp(1.3rem, 4vw, 1.5rem);
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.nav-close:active {
  background: rgba(255, 0, 0, 0.2);
  transform: rotate(90deg);
}

.nav-wrap {
  padding: 20px;
  padding-bottom: 100px;
}

.primary-nav .menu {
  list-style: none;
  margin: 0 0 30px 0;
  padding: 0;
}

.primary-nav .menu li {
  margin: 5px 0;
}

.primary-nav .menu a {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px 20px;
  color: #0ff;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  font-size: clamp(1rem, 3.5vw, 1.1rem);
  border: 1px solid transparent;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.primary-nav .menu a:active {
  background: rgba(0, 255, 255, 0.2);
  border-color: #0ff;
  transform: translateX(5px);
}

.menu-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.menu-action-btn, .action-btn {
  flex: 1;
  min-width: 70px;
  padding: 12px 8px;
  border-radius: 10px;
  background: rgba(0, 255, 255, 0.1);
  color: #0ff;
  border: 1px solid #0ff;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: all 0.2s ease;
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
  font-size: clamp(0.8rem, 3vw, 0.9rem);
  -webkit-tap-highlight-color: transparent;
}

.menu-action-btn:active, .action-btn:active {
  background: #0ff;
  color: #000;
  transform: scale(0.95);
}

.menu-action-btn.like[aria-pressed="true"] {
  background: #ff4444;
  border-color: #ff4444;
  color: white;
}

.menu-bottom {
  margin-top: 30px;
}

.menu-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px;
  border-radius: 10px;
  background: #25D366;
  color: white;
  text-decoration: none;
  font-weight: 600;
  margin-bottom: 20px;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  font-size: clamp(0.9rem, 3vw, 1rem);
  -webkit-tap-highlight-color: transparent;
}

.menu-whatsapp:active {
  background: transparent;
  border-color: #25D366;
  color: #25D366;
  transform: scale(0.98);
}

.menu-social {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin-bottom: 20px;
}

.menu-social a {
  color: #0ff;
  font-size: clamp(1.3rem, 4vw, 1.5rem);
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.menu-social a:active {
  transform: translateY(-3px) scale(1.1);
  text-shadow: 0 0 20px #0ff;
}

.menu-footer h6 {
  color: rgba(0, 255, 255, 0.5);
  text-align: center;
  font-size: clamp(0.7rem, 2.5vw, 0.8rem);
  margin-bottom: 10px;
}

.matrix-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
  font-size: clamp(0.6rem, 2vw, 0.7rem);
  color: rgba(0, 255, 255, 0.6);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #0f0;
  border-radius: 50%;
  box-shadow: 0 0 10px #0f0;
  animation: pulse 1.5s infinite;
}

/* ===== MENU OVERLAY ===== */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 1900;
  transition: opacity 0.2s ease;
  opacity: 0;
  pointer-events: none;
}

.menu-overlay:not([hidden]) {
  opacity: 1;
  pointer-events: auto;
}

/* ===== CONTACT CONTAINER - FIXED FOR FULL CONTACT.HTML DISPLAY ===== */
.contact-container {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 95%;
  max-width: 1200px;
  height: 90vh;
  max-height: 90vh;
  background: rgba(0, 20, 20, 0.98);
  backdrop-filter: blur(20px);
  border: 2px solid #0ff;
  border-radius: 20px;
  box-shadow: 0 0 50px #0ff;
  z-index: 3000;
  overflow: hidden;
  animation: modalAppear 0.3s ease;
}

.contact-header {
  padding: 15px 20px;
  border-bottom: 2px solid #0ff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
}

.contact-header h3 {
  color: #0ff;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
}

.contact-content {
  padding: 0;
  height: calc(90vh - 70px);
  overflow: hidden;
  background: transparent;
}

.contact-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
}

/* Light mode adjustments */
body.light-mode .contact-container {
  background: rgba(255, 255, 255, 0.98);
  border-color: #00aaff;
}

body.light-mode .contact-header {
  border-bottom-color: #00aaff;
}

body.light-mode .contact-header h3 {
  color: #00aaff;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .contact-container {
    width: 98%;
    height: 95vh;
    max-height: 95vh;
    border-radius: 15px;
  }
  
  .contact-content {
    height: calc(95vh - 70px);
  }
}

/* ===== MENU DATE DISPLAY ===== */
.menu-date-display {
  background: rgba(0, 255, 255, 0.1);
  border: 1px solid rgba(0, 255, 255, 0.3);
  border-radius: 10px;
  padding: 15px;
  margin-bottom: 20px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  backdrop-filter: blur(5px);
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
}

.menu-date-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  color: #0ff;
  font-family: 'Consolas', monospace;
}

.menu-date-item i {
  font-size: 1.5rem;
  filter: drop-shadow(0 0 8px #0ff);
  margin-bottom: 5px;
}

.menu-date-item span {
  font-size: 1rem;
  font-weight: bold;
  text-shadow: 0 0 8px #0ff;
}

/* Light mode */
body.light-mode .menu-date-display {
  background: rgba(0, 170, 255, 0.1);
  border-color: #00aaff;
}

body.light-mode .menu-date-item {
  color: #00aaff;
}

/* Mobile responsive */
@media (max-width: 480px) {
  .menu-date-display {
    padding: 10px;
  }
  
  .menu-date-item i {
    font-size: 1.2rem;
  }
  
  .menu-date-item span {
    font-size: 0.9rem;
  }
}

/* ===== DIALOG STYLES ===== */
.share-dialog, .about-dialog, .license-dialog {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5000;
}

.share-dialog-content, .about-dialog-content, .license-dialog-content {
  background: rgba(0, 20, 20, 0.98);
  border: 2px solid #0ff;
  border-radius: 20px;
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow: hidden;
  box-shadow: 0 0 50px #0ff;
  animation: modalAppear 0.3s ease;
}

.share-header, .about-header, .license-header {
  padding: clamp(15px, 4vw, 20px);
  border-bottom: 2px solid #0ff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
}

.share-header h3, .about-header h3, .license-header h3 {
  color: #0ff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: clamp(1rem, 4vw, 1.2rem);
}

.close-btn {
  background: transparent;
  border: none;
  color: #ff4444;
  font-size: clamp(1.3rem, 4vw, 1.5rem);
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.close-btn:active {
  background: rgba(255, 0, 0, 0.2);
  transform: rotate(90deg);
}

/* Matrix Text Styles */
.matrix-text {
  padding: 20px;
  color: #0ff;
  font-family: 'Consolas', monospace;
}

.ascii-art {
  color: #0ff;
  font-size: clamp(6px, 2vw, 10px);
  line-height: 1.2;
  margin-bottom: 20px;
  text-align: center;
  text-shadow: 0 0 10px #0ff;
  white-space: pre;
  overflow-x: auto;
}

.prompt {
  color: #0f0;
  font-weight: bold;
}

.command {
  color: #ff0;
}

.output {
  color: #0ff;
  margin-left: 20px;
  margin-bottom: 5px;
  position: relative;
  font-size: clamp(0.8rem, 3vw, 0.9rem);
}

.output::before {
  content: '│';
  position: absolute;
  left: -15px;
  color: #0ff;
  opacity: 0.5;
}

/* Share Preview */
.share-preview {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  border-bottom: 1px solid rgba(0, 255, 255, 0.2);
}

.share-logo {
  width: clamp(50px, 12vw, 60px);
  height: clamp(50px, 12vw, 60px);
  background: linear-gradient(135deg, #00ffff, #0088ff);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: black;
  font-weight: bold;
  font-size: clamp(1.5rem, 5vw, 2rem);
  box-shadow: 0 0 30px #0ff;
}

.share-details {
  flex: 1;
}

.share-text {
  font-weight: bold;
  color: #0ff;
  margin-bottom: 5px;
  font-size: clamp(0.9rem, 3.5vw, 1rem);
}

.share-description {
  font-size: clamp(0.8rem, 3vw, 0.9rem);
  color: rgba(0, 255, 255, 0.7);
  margin-bottom: 3px;
}

.share-url {
  font-size: clamp(0.7rem, 2.5vw, 0.8rem);
  color: rgba(0, 255, 255, 0.4);
  word-break: break-all;
}

.share-actions {
  padding: 20px;
  display: flex;
  gap: 10px;
  border-top: 1px solid rgba(0, 255, 255, 0.2);
}

.share-action-btn {
  flex: 1;
  padding: clamp(10px, 3vw, 12px);
  border-radius: 10px;
  border: 1px solid #0ff;
  background: transparent;
  color: #0ff;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: clamp(0.8rem, 3vw, 0.9rem);
  -webkit-tap-highlight-color: transparent;
}

.share-action-btn.primary {
  background: #0ff;
  color: #000;
}

.share-action-btn:active {
  transform: scale(0.95);
  background: #0ff;
  color: #000;
}

/* ===== MAIN CALCULATOR STYLES ===== */
h2 {
  margin: 10px 0;
  font-size: clamp(1.8rem, 6vw, 2.5rem);
  color: #0ff;
  text-shadow: 0 0 20px #0ff, 0 0 40px #0ff;
  text-align: center;
  letter-spacing: 2px;
  animation: glitch 5s infinite;
  position: relative;
  z-index: 10;
  line-height: 1.2;
}

#display {
  width: 95%;
  max-width: 500px;
  padding: clamp(12px, 3vw, 20px);
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  margin: 10px auto;
  text-align: right;
  border: 2px solid #0ff;
  border-radius: 15px;
  background: rgba(0, 0, 0, 0.8);
  color: #0ff;
  box-shadow: 0 0 30px #0ff, inset 0 0 20px rgba(0, 255, 255, 0.3);
  font-family: 'Consolas', monospace;
  letter-spacing: 2px;
  position: relative;
  z-index: 10;
  backdrop-filter: blur(5px);
  min-height: 60px;
}

/* ===== SCIENTIFIC PANEL NAVIGATION ===== */
.sci-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin: 10px auto;
  width: 95%;
  max-width: 500px;
  position: relative;
  z-index: 10;
}

.sci-arrow {
  width: clamp(40px, 10vw, 45px);
  height: clamp(40px, 10vw, 45px);
  border-radius: 50%;
  background: rgba(0, 255, 255, 0.15);
  border: 2px solid #0ff;
  color: #0ff;
  font-size: clamp(1.1rem, 4vw, 1.3rem);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
  -webkit-tap-highlight-color: transparent;
}

.sci-arrow:active {
  background: #0ff;
  color: #000;
  transform: scale(0.95);
}

.sci-arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.sci-indicators {
  display: flex;
  gap: 8px;
}

.sci-dot {
  width: clamp(10px, 3vw, 12px);
  height: clamp(10px, 3vw, 12px);
  border-radius: 50%;
  background: rgba(0, 255, 255, 0.3);
  border: 1px solid #0ff;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.sci-dot:active {
  transform: scale(1.3);
}

.sci-dot.active {
  background: #0ff;
  box-shadow: 0 0 20px #0ff;
  transform: scale(1.3);
}

/* ===== SCIENTIFIC PANEL ===== */
.sci-panel-container {
  width: 95%;
  max-width: 500px;
  overflow: hidden;
  margin: 10px auto;
  border-radius: 15px;
  border: 2px solid #0ff;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
  position: relative;
  z-index: 10;
}

.sci-panel {
  display: flex;
  transition: transform 0.3s ease;
  will-change: transform;
}

.sci-page {
  min-width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 10px;
}

.sci-page button {
  padding: clamp(10px, 3vw, 15px) 3px;
  font-size: clamp(0.8rem, 3vw, 1.1rem);
  border: 2px solid #0ff;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: #0ff;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: 'Consolas', monospace;
  font-weight: bold;
  text-shadow: 0 0 5px #0ff;
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
  min-height: 45px;
  -webkit-tap-highlight-color: transparent;
}

.sci-page button:active {
  transform: scale(0.95);
  background: #0ff;
  color: #000;
  box-shadow: 0 0 30px #0ff;
}

/* ===== BASIC CALCULATOR BUTTONS ===== */
.calculator-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  width: 95%;
  max-width: 500px;
  margin: 10px auto 20px auto;
  position: relative;
  z-index: 10;
  padding: 0 5px;
}

.calculator-buttons button {
  padding: clamp(12px, 4vw, 18px) 3px;
  font-size: clamp(1rem, 4vw, 1.3rem);
  border: 2px solid #0ff;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.7);
  color: #0ff;
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
  transition: all 0.15s ease;
  cursor: pointer;
  font-family: 'Consolas', monospace;
  font-weight: bold;
  text-shadow: 0 0 5px #0ff;
  backdrop-filter: blur(5px);
  -webkit-tap-highlight-color: transparent;
  min-height: 50px;
}

.calculator-buttons button:active {
  transform: scale(0.95);
  background: #0ff;
  color: #000;
  box-shadow: 0 0 40px #0ff;
}

.wide-button {
  grid-column: span 2;
  background: rgba(255, 0, 0, 0.3) !important;
  border-color: #ff4444 !important;
  color: #ff4444 !important;
  font-size: clamp(1rem, 4vw, 1.2rem) !important;
}

.wide-button:active {
  background: #ff4444 !important;
  color: #000 !important;
  box-shadow: 0 0 30px #ff4444 !important;
}

#equals {
  background: rgba(0, 255, 0, 0.3) !important;
  border-color: #0f0 !important;
  color: #0f0 !important;
}

#equals:active {
  background: #0f0 !important;
  color: #000 !important;
  box-shadow: 0 0 30px #0f0 !important;
}

/* ===== OPTIMIZED GLOW EFFECT ===== */
.button-glow {
  position: fixed;
  width: 0;
  height: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity 0.1s;
}

@keyframes glowPulse {
  0% { width: 0px; height: 0px; opacity: 0.8; }
  100% { width: 150px; height: 150px; opacity: 0; }
}

/* Disable glow on mobile for performance */
@media (max-width: 768px) {
  .button-glow {
    display: none;
  }
}

/* ===== LIGHT MODE ===== */
body.light-mode {
  background: #f0f0f0;
  color: #333;
}

body.light-mode .eclipse {
  box-shadow: 0 0 200px #00aaff, 0 0 400px #0088ff55;
}

body.light-mode .toggle-container {
  background: rgba(0, 170, 255, 0.1);
  border-color: #00aaff;
}

body.light-mode .toggle-label {
  color: #00aaff;
}

body.light-mode .toggle-switch {
  background: linear-gradient(135deg, #00aaff, #0066ff);
}

body.light-mode .date-container {
  background: rgba(0, 170, 255, 0.1);
  border-color: #00aaff;
  color: #00aaff;
}

body.light-mode #currentTime {
  background: rgba(0, 170, 255, 0.2);
  color: #333;
}

body.light-mode .menu-toggle {
  border-color: #00aaff;
  background: rgba(255, 255, 255, 0.2);
}

body.light-mode .menu-badge,
body.light-mode .hamburger-icon span {
  color: #00aaff;
  background: #00aaff;
}

body.light-mode .primary-nav {
  background: rgba(255, 255, 255, 0.98);
  border-left-color: #00aaff;
}

body.light-mode .primary-nav .menu a {
  color: #00aaff;
}

body.light-mode h2 {
  color: #00aaff;
}

body.light-mode #display {
  background: rgba(255, 255, 255, 0.9);
  color: #333;
  border-color: #00aaff;
}

body.light-mode .calculator-buttons button,
body.light-mode .sci-page button {
  background: rgba(255, 255, 255, 0.9);
  color: #00aaff;
  border-color: #00aaff;
}

body.light-mode .calculator-buttons button:active,
body.light-mode .sci-page button:active {
  background: #00aaff;
  color: white;
}

/* ===== UTILITY CLASSES ===== */
[hidden] {
  display: none !important;
}

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

/* ===== TOUCH DEVICE OPTIMIZATIONS ===== */
.touch-device .calculator-buttons button:hover,
.touch-device .sci-page button:hover,
.touch-device .menu-toggle:hover,
.touch-device .sci-arrow:hover {
  transform: none !important;
  background: rgba(0, 0, 0, 0.7) !important;
  color: #0ff !important;
}

.touch-device .calculator-buttons button:active,
.touch-device .sci-page button:active {
  transform: scale(0.95) !important;
  background: #0ff !important;
  color: #000 !important;
}

/* ===== PERFORMANCE MEDIA QUERIES ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Mobile specific adjustments */
@media (max-width: 480px) {
  .date-container span:not(#currentDate) {
    display: none;
  }
  
  .menu-badge span {
    display: none;
  }
  
  .sci-page {
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
  }
  
  .calculator-buttons button {
    min-height: 45px;
    padding: 8px 2px;
  }
}

/* Small height devices */
@media (max-height: 600px) {
  h2 {
    font-size: 1.5rem;
    margin: 5px 0;
  }
  
  .calculator-buttons button {
    min-height: 40px;
    padding: 6px 2px;
  }
  
  .sci-page button {
    min-height: 35px;
    padding: 5px 2px;
  }
}