/* Global Styles */
:root {
    --color-white: #FFFFFF;
    --color-light-gray: #F8F9FA;
    --color-black: #0F0F0F;
    --color-bitcoin-orange: #F7931A;
    --color-bitcoin-orange-light: #FFA726;
    --color-dark-gray: #4A5568;
    --color-aquamarine: #38B2AC;
    --color-purple: #805AD5;
    --color-hover-gray: #E2E8F0;
    --color-active-gray: #EDF2F7;
    --color-disabled-gray: #CBD5E0;
    --color-green: #2ecc71;
    --color-red: #e74c3c;

    --font-family-body: 'Inter', -apple-system, sans-serif;
    --font-family-heading: 'SF Pro Display', -apple-system, sans-serif; /* Using system font */
    --font-family-mono: 'SF Mono', 'Roboto Mono', monospace; /* Using system font */

    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-round: 999px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1), 0 8px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15), 0 16px 32px rgba(0,0,0,0.12);
    --shadow-bitcoin: inset 0 -8px 16px rgba(0,0,0,0.1), 0 16px 32px rgba(247, 147, 26, 0.15);

    --border-hairline: 0.5px solid #E2E8F0;
    --border-default: 1px solid #E2E8F0;

    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 24px;
    --spacing-6: 32px;
    --spacing-7: 48px;
    --spacing-8: 64px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
    font-family: var(--font-family-body);
    color: var(--color-black);
    background-color: var(--color-light-gray);
    line-height: 1.5;
    overflow: hidden; /* Prevent body scrolling */
}

#root, .app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Typography */
h1 {
    font-size: 48px;
    font-family: var(--font-family-mono);
    font-weight: 600;
    color: var(--color-black);
}

h2 {
    font-size: 32px;
    font-family: var(--font-family-heading);
    font-weight: 600;
    color: var(--color-black);
}

h3 {
    font-size: 24px;
    font-family: var(--font-family-heading);
    font-weight: 500;
    color: var(--color-black);
}

p,
span,
div,
button,
input,
table {
    font-size: 16px;
    font-family: var(--font-family-body);
    font-weight: 400;
    color: var(--color-black);
}

.caption {
    font-size: 14px;
    color: var(--color-dark-gray);
}

.mono-number {
    font-family: var(--font-family-mono);
    font-size: 20px;
    font-weight: 400;
}

/* Utility Classes */
.text-green {
    color: var(--color-green);
}

.text-red {
    color: var(--color-red);
}

/* Buttons */
.btn {
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    border: var(--border-default);
    background-color: var(--color-white);
    color: var(--color-black);
}

.btn:hover {
    background-color: var(--color-hover-gray);
    box-shadow: var(--shadow-sm);
}

.btn:active {
    background-color: var(--color-active-gray);
    box-shadow: none;
}

.btn:disabled {
    background-color: var(--color-disabled-gray);
    color: var(--color-dark-gray);
    cursor: not-allowed;
}

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

.btn-invest:hover {
    filter: brightness(0.9); /* Darken effect */
    border-color: var(--color-aquamarine);
}

.btn-withdraw {
    background-color: var(--color-dark-gray);
    border-color: var(--color-dark-gray);
    color: var(--color-white);
}

.btn-withdraw:hover {
    filter: brightness(0.9); /* Darken effect */
    border-color: var(--color-dark-gray);
}

/* Input Fields */
input[type="number"] {
    padding: var(--spacing-2) var(--spacing-3);
    border: var(--border-default);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-mono);
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

input[type="number"]:focus {
    outline: none;
    border-color: var(--color-aquamarine);
    box-shadow: 0 0 0 2px rgba(56, 178, 172, 0.2);
}

/* Layout */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-4);
    display: grid;
    grid-template-rows: auto 1fr;
    gap: var(--spacing-4);
    height: 100%;
    overflow: hidden;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    border: var(--border-default);
    flex-shrink: 0; /* Prevent navbar from shrinking */
}

.navigation {
    display: flex;
    gap: var(--spacing-4);
}

.nav-button {
    background: none;
    border: none;
    font-family: var(--font-family-heading);
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    padding: var(--spacing-2) 0;
    position: relative;
    color: var(--color-dark-gray);
    transition: color 0.2s ease-in-out;
}

.nav-button::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 3px;
    background-color: transparent;
    transition: background-color 0.2s ease-in-out;
}

.nav-button.active {
    color: var(--color-black);
}

.nav-button.active::after {
    background-color: var(--color-bitcoin-orange);
}

.balance-display {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-2);
}

.balance-label {
    font-size: 14px;
    color: var(--color-dark-gray);
}

.balance-value {
    font-family: var(--font-family-mono);
    font-size: 20px;
    font-weight: 500;
    color: var(--color-black);
}

.main-content {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-6);
    border: var(--border-default);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Important for internal scrolling */
}

.game-section {
    display: none;
    flex-grow: 1;
    animation: pageTransition 0.3s ease-out forwards;
    height: 100%;
    overflow: hidden; /* Prevent section overflow */
}

.game-section.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    width: 100%;
}

/* Clicker Section Specific */
#clicker.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    height: 100%;
    overflow-y: auto; /* Add scroll if needed */
}

/* Bank Section Specific */
#bank .bank-interface {
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Trade Section Specific */
#trade .trade-interface {
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Clicker Section */
.clicker-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    animation: fadeIn 0.5s ease-out forwards;
    flex-shrink: 0; /* Prevent clicker area from shrinking */
}

.bitcoin-button {
    width: 240px;
    height: 240px;
    background: linear-gradient(145deg, var(--color-bitcoin-orange) 0%, var(--color-bitcoin-orange-light) 100%);
    border-radius: var(--border-radius-round);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-family-heading);
    font-size: 120px;
    font-weight: 600;
    color: var(--color-white);
    cursor: pointer;
    box-shadow: var(--shadow-bitcoin);
    transition: transform 0.1s ease-out, box-shadow 0.1s ease-out;
    user-select: none;
}

.bitcoin-button:active {
    transform: scale(0.95);
    box-shadow: inset 0 -4px 8px rgba(0,0,0,0.1), 0 8px 16px rgba(247, 147, 26, 0.1);
}

.btc-counter {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-1);
}

.current-btc {
    font-family: var(--font-family-mono);
    font-size: 48px;
    font-weight: 600;
    color: var(--color-black);
}

.btc-unit {
    font-family: var(--font-family-body);
    font-size: 24px;
    font-weight: 500;
    color: var(--color-dark-gray);
}

.upgrades-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    width: 100%;
    max-width: 600px; /* Even wider card width */
    margin-top: var(--spacing-6);
    flex: 1;
    overflow-y: auto;
    min-height: 0; /* Important for flex scrolling */
    padding: var(--spacing-2) var(--spacing-1);
}

/* Custom scrollbar for upgrades grid */
.upgrades-grid::-webkit-scrollbar {
    width: 6px;
}

.upgrades-grid::-webkit-scrollbar-track {
    background: var(--color-light-gray);
    border-radius: 3px;
}

.upgrades-grid::-webkit-scrollbar-thumb {
    background: var(--color-aquamarine);
    border-radius: 3px;
}

.upgrade-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    border: var(--border-default);
    padding: var(--spacing-5);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    width: 100%;
    flex-shrink: 0; /* Prevent cards from shrinking */
}

.upgrade-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.upgrade-card.purchased {
    border-color: var(--color-bitcoin-orange);
    box-shadow: 0 0 0 2px var(--color-bitcoin-orange), var(--shadow-sm);
}

.upgrade-card.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.upgrade-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.upgrade-icon {
    width: 24px;
    height: 24px;
    color: var(--color-aquamarine);
}

.upgrade-title {
    font-size: 20px;
    font-weight: 600;
}

.upgrade-description {
    font-size: 14px;
    color: var(--color-dark-gray);
    min-height: 42px; /* Ensure consistent height for descriptions */
}

.upgrade-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-2);
}

.upgrade-price {
    font-family: var(--font-family-mono);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-black);
}

.upgrade-level {
    font-size: 14px;
    color: var(--color-dark-gray);
}

/* Bank Section */
.bank-interface {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
    animation: fadeIn 0.5s ease-out forwards;
    max-width: 800px;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

/* Bank Header */
.bank-header {
    text-align: center;
    margin-bottom: var(--spacing-4);
    flex-shrink: 0;
}

.bank-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-1);
}

.bank-icon {
    font-size: 32px;
}

.bank-title h2 {
    margin: 0;
    color: var(--color-black);
    font-size: 28px;
    font-weight: 600;
}

.bank-subtitle {
    color: var(--color-dark-gray);
    font-size: 16px;
    font-weight: 400;
}

/* Bank Scrollable Content */
.bank-content-scrollable {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: var(--spacing-3);
    padding-bottom: var(--spacing-4);
    scrollbar-width: thin;
    scrollbar-color: var(--color-aquamarine) var(--color-light-gray);
}

.bank-content-scrollable::-webkit-scrollbar {
    width: 6px;
}

.bank-content-scrollable::-webkit-scrollbar-track {
    background: var(--color-light-gray);
    border-radius: 3px;
}

.bank-content-scrollable::-webkit-scrollbar-thumb {
    background: var(--color-aquamarine);
    border-radius: 3px;
}

/* Bank Overview Cards */
.bank-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.overview-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-4);
    box-shadow: var(--shadow-sm);
    border: var(--border-default);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.overview-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
}

.card-icon {
    font-size: 20px;
}

.card-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark-gray);
}

/* Deposit Card */
.deposit-amount {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-1);
    margin-bottom: var(--spacing-2);
}

.deposit-amount .current-deposit {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-black);
}

.btc-symbol {
    font-size: 18px;
    color: var(--color-dark-gray);
    font-weight: 500;
}

.deposit-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-active {
    background-color: var(--color-green);
    box-shadow: 0 0 8px rgba(46, 204, 113, 0.4);
}

.status-inactive {
    background-color: var(--color-dark-gray);
}

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

/* Rate Card */
.rate-amount {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-1);
    margin-bottom: var(--spacing-1);
}

.rate-value {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-green);
}

.rate-period {
    font-size: 16px;
    color: var(--color-dark-gray);
}

.rate-description {
    font-size: 14px;
    color: var(--color-dark-gray);
}

/* Bank Timer Section */
.bank-timer-section {
    text-align: center;
    margin-bottom: var(--spacing-4);
    flex-shrink: 0;
}

.bank-timer-section h3 {
    margin-bottom: var(--spacing-3);
    color: var(--color-dark-gray);
    font-size: 16px;
    font-weight: 500;
}

/* Info Alert */
.info-alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    background-color: rgba(56, 178, 172, 0.1);
    border: 1px solid rgba(56, 178, 172, 0.2);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-4);
    margin-bottom: var(--spacing-4);
    flex-shrink: 0;
}

.info-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.info-alert p {
    margin: 0;
    line-height: 1.5;
    color: var(--color-black);
}

/* Deposit Panel */
.deposit-panel {
    background-color: var(--color-active-gray);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-5);
    border: var(--border-default);
    flex-shrink: 0;
}

.deposit-panel h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-4);
    color: var(--color-black);
    font-size: 18px;
}

.input-group {
    margin-bottom: var(--spacing-4);
}

.input-group label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-weight: 500;
    color: var(--color-dark-gray);
}

.deposit-input {
    width: 100%;
    padding: var(--spacing-3);
    border: 2px solid var(--color-hover-gray);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-mono);
    font-size: 16px;
    transition: border-color 0.2s ease;
}

.deposit-input:focus {
    outline: none;
    border-color: var(--color-aquamarine);
    box-shadow: 0 0 0 3px rgba(56, 178, 172, 0.1);
}

.bank-actions {
    display: flex;
    gap: var(--spacing-3);
    justify-content: center;
    flex-shrink: 0;
}

.btn-invest, .btn-withdraw {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    font-weight: 600;
    transition: all 0.2s ease;
}

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

.btn-invest:hover {
    background-color: #27ae60;
    border-color: #27ae60;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-withdraw:hover {
    background-color: #c0392b;
    border-color: #c0392b;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-icon {
    font-size: 16px;
}

.bank-timer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
}

.bank-timer {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.progress-ring-track,
.progress-ring-progress {
    transform-origin: center;
    transform: rotate(-90deg);
}

.progress-ring-progress {
    transition: stroke-dashoffset 1s linear;
}

.timer-countdown {
    position: absolute;
    font-family: var(--font-family-mono);
    font-size: 32px;
    font-weight: 600;
    color: var(--color-black);
}

.deposit-panel {
    background-color: var(--color-active-gray);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-5);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    width: 100%;
    max-width: 400px;
    border: var(--border-default);
    flex-shrink: 0;
}

.bank-actions {
    display: flex;
    gap: var(--spacing-3);
    justify-content: center;
}

.transaction-history {
    width: 100%;
    margin-top: var(--spacing-4);
    flex-shrink: 0;
}

.transaction-history h3 {
    margin-bottom: var(--spacing-3);
    color: var(--color-black);
    font-size: 18px;
}

.table-container {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    border: var(--border-default);
    overflow: auto; /* Enable scrolling for table */
    max-height: 300px;
}

.transaction-history table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px; /* Ensure table is wide enough */
}

.transaction-history th {
    background-color: var(--color-hover-gray);
    padding: var(--spacing-4) var(--spacing-3);
    text-align: left;
    font-weight: 600;
    color: var(--color-black);
    border-bottom: var(--border-default);
    position: sticky;
    top: 0;
}

.transaction-history td {
    padding: var(--spacing-4) var(--spacing-3);
    border-bottom: var(--border-hairline);
    color: var(--color-dark-gray);
}

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

.transaction-history tbody tr:hover {
    background-color: var(--color-active-gray);
}

/* Transaction type colors */
.transaction-deposit {
    color: var(--color-green);
    font-weight: 500;
}

.transaction-withdrawal {
    color: var(--color-red);
    font-weight: 500;
}

.transaction-interest {
    color: var(--color-aquamarine);
    font-weight: 500;
}

/* Stocks Section */
.stocks-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-5);
    height: 100%;
    text-align: center;
    animation: fadeIn 0.5s ease-out forwards;
}

.stock-chart-icon {
    width: 100px;
    height: 100px;
    color: var(--color-dark-gray);
}

.btn-back-to-clicker {
    margin-top: var(--spacing-4);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleClick {
  0% { transform: scale(1); }
  50% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

@keyframes pulseBorder {
  0%, 100% { border-color: var(--color-hover-gray); }
  50% { border-color: var(--color-bitcoin-orange); }
}

@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes floatCard {
  0% {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  }
  100% {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.12);
  }
}

@keyframes pageTransition {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes purchasedAnimation {
  0% {
    transform: scale(1);
    box-shadow: var(--shadow-sm);
  }
  50% {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
  }
  100% {
    transform: scale(1);
    box-shadow: var(--shadow-sm);
  }
}

.purchased-animation {
  animation: purchasedAnimation 0.5s ease-out;
}

@keyframes timerReset {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
    filter: brightness(1.2);
  }
  100% {
    transform: scale(1);
  }
}

/* Event Notifications */
.event-notification {
  position: fixed;
  top: 20px;
  left: 20px;
  background-color: var(--color-white);
  color: var(--color-black);
  padding: var(--spacing-3) var(--spacing-4);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-md);
  z-index: 10000;
  max-width: 380px;
  font-size: 14px;
  line-height: 1.4;
  border-left: 3px solid var(--color-aquamarine);
  animation: slideInLeft 0.3s ease-out;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  font-family: var(--font-family-body);
}

.event-notification::before {
  content: '🎯';
  font-size: 16px;
  flex-shrink: 0;
  color: var(--color-aquamarine);
  background-color: rgba(56, 178, 172, 0.1);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Error Notifications */
.error-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background-color: var(--color-white);
  color: var(--color-black);
  padding: var(--spacing-3) var(--spacing-4);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-md);
  z-index: 10000;
  max-width: 380px;
  font-size: 14px;
  line-height: 1.4;
  border-left: 3px solid var(--color-red);
  animation: slideInRight 0.3s ease-out;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-2);
  font-family: var(--font-family-body);
}

.error-notification::before {
  content: '!';
  font-size: 16px;
  font-weight: bold;
  flex-shrink: 0;
  color: var(--color-red);
  background-color: rgba(231, 76, 60, 0.1);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-notification.error {
  border-left-color: var(--color-red);
}

.error-notification.error::before {
  content: '!';
  background-color: rgba(231, 76, 60, 0.1);
  color: var(--color-red);
}

.error-notification.warning {
  border-left-color: var(--color-bitcoin-orange);
}

.error-notification.warning::before {
  content: '!';
  background-color: rgba(243, 156, 18, 0.1);
  color: var(--color-bitcoin-orange);
}

.error-notification.success {
  border-left-color: var(--color-green);
}

.error-notification.success::before {
  content: '✓';
  background-color: rgba(39, 174, 96, 0.1);
  color: var(--color-green);
}

.error-notification.info {
  border-left-color: var(--color-aquamarine);
}

.error-notification.info::before {
  content: 'i';
  background-color: rgba(56, 178, 172, 0.1);
  color: var(--color-aquamarine);
}

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

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

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

/* Floating BTC animation */
.floating-btc {
    position: absolute;
    font-family: var(--font-family-mono);
    font-size: 24px;
    font-weight: 600;
    color: var(--color-bitcoin-orange);
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
    z-index: 1000;
}

/* Responsive Design */
@media (max-width: 767px) {
    .app-container {
        padding: var(--spacing-2);
    }
    .navbar {
        flex-direction: column;
        gap: var(--spacing-2);
        padding: var(--spacing-2);
    }
    .navigation {
        width: 100%;
        justify-content: space-around;
    }
    .nav-button {
        font-size: 16px;
    }
    .balance-display {
        width: 100%;
        justify-content: center;
    }
    .clicker-area {
        margin-bottom: var(--spacing-4);
    }
    .bitcoin-button {
        width: 200px;
        height: 200px;
        font-size: 100px;
    }
    .current-btc {
        font-size: 36px;
    }
    .btc-unit {
        font-size: 20px;
    }
    .upgrades-grid {
        max-width: 100%;
    }

    /* Bank mobile styles */
    .bank-overview {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
    }

    .bank-title h2 {
        font-size: 24px;
    }

    .bank-icon {
        font-size: 28px;
    }

    .deposit-amount .current-deposit {
        font-size: 28px;
    }

    .rate-value {
        font-size: 24px;
    }

    .overview-card {
        padding: var(--spacing-3);
    }

    .info-alert {
        padding: var(--spacing-3);
    }

    .deposit-panel {
        padding: var(--spacing-4);
    }

    .bank-actions {
        flex-direction: column;
    }

    .btn-invest, .btn-withdraw {
        width: 100%;
    }

    /* Error notifications mobile */
    .error-notification {
        left: 10px;
        right: 10px;
        max-width: none;
        top: 10px;
        padding: var(--spacing-3) var(--spacing-3);
        font-size: 13px;
    }

    h1 { font-size: 36px; }
    h2 { font-size: 28px; }
    h3 { font-size: 20px; }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .upgrades-grid {
        max-width: 100%;
    }
}

/* Mobile Landscape Orientation - Special optimizations for phones in landscape */
@media (max-height: 500px) and (orientation: landscape) {
    .app-container {
        padding: var(--spacing-1);
        height: 100vh;
        overflow: hidden;
    }

    .navbar {
        flex-direction: row;
        padding: var(--spacing-1) var(--spacing-2);
        min-height: auto;
    }

    .navigation {
        flex: 1;
        justify-content: flex-start;
        gap: var(--spacing-2);
    }

    .nav-button {
        padding: var(--spacing-1) var(--spacing-2);
        font-size: 14px;
        min-width: auto;
    }

    .balance-display {
        margin-left: auto;
        font-size: 14px;
    }

    .balance-value {
        font-size: 16px;
    }

    .main-content {
        height: calc(100vh - 60px);
        overflow-y: auto;
    }

    .clicker-area {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        margin-bottom: var(--spacing-2);
        min-height: auto;
    }

    .bitcoin-button {
        width: 120px;
        height: 120px;
        font-size: 60px;
        flex-shrink: 0;
    }

    .btc-counter {
        flex: 1;
        text-align: center;
        margin: 0 var(--spacing-2);
    }

    .current-btc {
        font-size: 28px;
    }

    .btc-unit {
        font-size: 16px;
    }

    .upgrades-grid {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-2);
    }

    .upgrade-card {
        min-width: 180px;
        max-width: 200px;
        padding: var(--spacing-3);
    }

    /* Bank landscape */
    .bank-overview {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: var(--spacing-2);
    }

    .bank-stats {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    /* Make sections more compact in landscape */
    .game-section.active {
        padding: var(--spacing-2);
        overflow-y: auto;
    }

    /* Improve scrolling in landscape */
    .main-content {
        -webkit-overflow-scrolling: touch;
        overflow-y: auto;
    }

    /* Adjust font sizes for better readability */
    .balance-value {
        font-size: 18px;
    }

    .current-btc {
        font-size: 32px;
    }

    /* Make buttons more touch-friendly in landscape */
    .btn, .nav-button {
        min-height: 40px;
        padding: var(--spacing-2) var(--spacing-3);
    }

    /* Better spacing for landscape */
    .game-section {
        padding: var(--spacing-2);
    }
}

/* Touch-friendly improvements for mobile */
@media (pointer: coarse) {
    .nav-button,
    .btn,
    .bitcoin-button {
        min-height: 44px;
        min-width: 44px;
    }

    .upgrade-card,
    .business-card,
    .pet-card,
    .achievement-card {
        min-height: 60px;
    }

    /* Prevent zoom on input focus */
    input[type="number"],
    input[type="text"] {
        font-size: 16px;
    }
}

/* iOS Safari specific fixes */
@supports (-webkit-touch-callout: none) {
    .app-container {
        height: 100vh;
        height: -webkit-fill-available;
    }

    .main-content {
        height: 100vh;
        height: -webkit-fill-available;
    }
}

/* Additional mobile landscape improvements */
@media (max-height: 500px) and (orientation: landscape) and (max-width: 900px) {
    /* Ensure content fits in landscape mode */
    html, body {
        overflow-x: hidden;
    }

    .app-container {
        min-height: 100vh;
        min-height: -webkit-fill-available;
    }

    /* Optimize card layouts for landscape */
    .upgrade-card, .business-card, .pet-card {
        padding: var(--spacing-2);
    }

    .card-title {
        font-size: 16px;
    }

    .card-description {
        font-size: 13px;
    }
}

/* High DPI displays optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Sharper text rendering on high DPI screens */
    * {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Safe area for devices with notches */
@supports (padding: max(0px)) {
    .app-container {
        padding-left: max(var(--spacing-2), env(safe-area-inset-left));
        padding-right: max(var(--spacing-2), env(safe-area-inset-right));
        padding-top: max(var(--spacing-2), env(safe-area-inset-top));
        padding-bottom: max(var(--spacing-2), env(safe-area-inset-bottom));
    }

    .navbar {
        padding-top: max(var(--spacing-1), env(safe-area-inset-top));
    }
}

/* Scrollbar styles for Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-aquamarine) var(--color-light-gray);
}

/* Scrollbar styles for Webkit browsers */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-light-gray);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--color-aquamarine);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2c7a7b;
}