/* ========================================
   TON Wallet - Modern CSS
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #0098EA;
    --color-primary-hover: #0088d4;
    --color-primary-light: rgba(0, 152, 234, 0.1);
    --color-secondary: #1C1C1E;
    --color-success: #34C759;
    --color-danger: #FF3B30;
    --color-warning: #FF9500;

    /* Backgrounds */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F2F2F7;
    --bg-tertiary: #E5E5EA;
    --bg-card: #FFFFFF;
    --bg-input: #F2F2F7;

    /* Text */
    --text-primary: #1C1C1E;
    --text-secondary: #8E8E93;
    --text-tertiary: #AEAEB2;
    --text-inverse: #FFFFFF;

    /* Borders */
    --border-color: #E5E5EA;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.08), 0 8px 32px rgba(0, 0, 0, 0.12);

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;

    /* Layout */
    --max-width: 480px;
    --header-height: 56px;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #1C1C1E;
        --bg-tertiary: #2C2C2E;
        --bg-card: #1C1C1E;
        --bg-input: #2C2C2E;
        --text-primary: #FFFFFF;
        --text-secondary: #8E8E93;
        --text-tertiary: #636366;
        --border-color: #38383A;
        --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3), 0 8px 32px rgba(0, 0, 0, 0.4);
    }
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* App Container */
#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: var(--max-width);
    margin: 0 auto;
    background: var(--bg-primary);
    position: relative;
}

@media (min-width: 481px) {
    body {
        padding: var(--spacing-lg) 0;
    }

    #app {
        border-radius: var(--border-radius-xl);
        box-shadow: var(--shadow-lg);
        min-height: calc(100vh - var(--spacing-2xl));
        max-height: 900px;
        overflow: hidden;
    }
}

/* Hidden State */
.hidden {
    display: none !important;
}

/* ========================================
   Header
   ======================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--spacing-md);
    height: var(--header-height);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--spacing-md);
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background: var(--bg-tertiary);
}

.icon-btn:active {
    transform: scale(0.95);
}

.update-label {
    flex: 1;
    text-align: center;
    font-size: 13px;
    color: var(--text-secondary);
}

/* ========================================
   Wallet Selector
   ======================================== */
.wallet-selector {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
}

.wallet-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 15px;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%238E8E93' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}

.wallet-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.screen {
    position: relative;
    animation: fadeIn var(--transition-normal);
}

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

/* ========================================
   Welcome Screen
   ======================================== */
.welcome-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: calc(100vh - 200px);
    padding: var(--spacing-xl);
}

.logo-container {
    width: 120px;
    height: 120px;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.logo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.welcome-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.welcome-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 280px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--text-inverse);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.btn-primary:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
}

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

.btn-ghost:hover:not(:disabled) {
    background: var(--color-primary-light);
}

.btn-large {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    border-radius: var(--border-radius-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-primary-light);
}

.btn-copy-seed {
    margin-bottom: var(--spacing-md);
}

/* Screen Navigation */
.screen-nav {
    margin-bottom: var(--spacing-lg);
}

.btn-nav {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    color: var(--color-primary);
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-nav:hover {
    background: var(--bg-tertiary);
}

.btn-nav:active {
    transform: scale(0.98);
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
    max-width: 320px;
}

/* ========================================
   Screen Header
   ======================================== */
.screen-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.screen-header h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.screen-description {
    font-size: 15px;
    color: var(--text-secondary);
}

/* ========================================
   Seed Words
   ======================================== */
.seed-words-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.seed-word {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    font-size: 13px;
}

.seed-word-num {
    color: var(--text-tertiary);
    font-size: 11px;
    min-width: 18px;
}

.seed-word-text {
    font-weight: 500;
    color: var(--text-primary);
}

.warning-box {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 149, 0, 0.1);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xl);
}

.warning-box svg {
    flex-shrink: 0;
    color: var(--color-warning);
}

.warning-box span {
    font-size: 13px;
    color: var(--color-warning);
    line-height: 1.4;
}

/* ========================================
   Inputs
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.input-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.input {
    width: 100%;
    padding: 14px var(--spacing-md);
    font-size: 16px;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.input::placeholder {
    color: var(--text-tertiary);
}

.seed-input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 15px;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    resize: none;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.seed-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ========================================
   Loading
   ======================================== */
#loadingScreen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.loader {
    width: 48px;
    height: 48px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    margin-top: var(--spacing-md);
    font-size: 15px;
    color: var(--text-secondary);
}

/* ========================================
   Wallet Dashboard
   ======================================== */
.wallet-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0077b6 100%);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    color: white;
    text-align: center;
    box-shadow: var(--shadow-card);
    margin-bottom: var(--spacing-lg);
}

/* Wallet Card Header - Name left, Status right */
.wallet-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

/* Wallet Name */
.wallet-name-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.wallet-name {
    font-size: 18px;
    font-weight: 600;
}

.edit-name-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    opacity: 0.8;
}

.edit-name-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    opacity: 1;
}

.wallet-state {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.15);
}

.wallet-state.active {
    color: #90EE90;
    background: rgba(144, 238, 144, 0.15);
}

.wallet-state.inactive {
    color: #FFD700;
    background: rgba(255, 215, 0, 0.15);
}

.wallet-address-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
}

.wallet-address {
    font-size: 11px;
    font-family: 'SF Mono', 'Consolas', monospace;
    word-break: break-all;
    opacity: 0.9;
}

.copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--border-radius-sm);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.balance-section {
    margin-bottom: var(--spacing-lg);
}

.balance-ton {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.balance-fiat {
    font-size: 14px;
    opacity: 0.8;
}

.balance-fiat .separator {
    margin: 0 var(--spacing-sm);
}

.wallet-actions {
    display: flex;
    gap: var(--spacing-md);
}

.btn-wallet-action {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-wallet-action:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.3);
}

.btn-wallet-action:active:not(:disabled) {
    transform: scale(0.98);
}

/* ========================================
   Transactions
   ======================================== */
.transactions-section {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
}

.transactions-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding: 0 var(--spacing-sm);
}

.transactions-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.transaction-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.transaction-item:hover {
    background: var(--bg-tertiary);
}

.tx-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tx-icon.incoming {
    background: rgba(52, 199, 89, 0.1);
    color: var(--color-success);
}

.tx-icon.outgoing {
    background: rgba(255, 59, 48, 0.1);
    color: var(--color-danger);
}

.tx-details {
    flex: 1;
    min-width: 0;
}

.tx-address {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}

.tx-time {
    font-size: 12px;
    color: var(--text-tertiary);
}

.tx-amount {
    text-align: right;
}

.tx-value {
    font-size: 15px;
    font-weight: 600;
}

.tx-value.incoming {
    color: var(--color-success);
}

.tx-value.outgoing {
    color: var(--color-danger);
}

.tx-fee {
    font-size: 11px;
    color: var(--text-tertiary);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
    font-size: 14px;
}

/* ========================================
   Send Screen
   ======================================== */
#sendScreen .button-group {
    flex-direction: row;
    margin-top: var(--spacing-lg);
}

#sendScreen .btn {
    flex: 1;
}

/* ========================================
   Transaction Result
   ======================================== */
#txResultScreen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 400px;
    padding: var(--spacing-xl);
}

.result-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.result-icon.success {
    background: rgba(52, 199, 89, 0.1);
    color: var(--color-success);
}

.result-icon.error {
    background: rgba(255, 59, 48, 0.1);
    color: var(--color-danger);
}

.result-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.result-message {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.tx-hash-container {
    width: 100%;
    margin-bottom: var(--spacing-xl);
}

.tx-hash {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.tx-hash span {
    flex: 1;
    font-size: 11px;
    font-family: 'SF Mono', 'Consolas', monospace;
    word-break: break-all;
    text-align: left;
}

.tx-hash .copy-btn {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: var(--spacing-md);
    text-align: center;
    font-size: 12px;
    color: var(--text-tertiary);
    border-top: 1px solid var(--border-color);
}

.footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ========================================
   Dropdown Menu
   ======================================== */
.dropdown-menu {
    position: absolute;
    top: calc(var(--header-height) + var(--spacing-sm));
    right: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 240px;
    overflow: hidden;
    z-index: 200;
    animation: slideDown var(--transition-fast);
    border: 1px solid var(--border-color);
}

.dropdown-header {
    padding: var(--spacing-md);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xs) 0;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
    padding: var(--spacing-md);
    font-size: 15px;
    font-family: inherit;
    color: var(--text-primary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.dropdown-item:hover {
    background: var(--bg-secondary);
}

.dropdown-item.danger {
    color: var(--color-danger);
}

/* ========================================
   Modal Overlay
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
    animation: fadeInOverlay var(--transition-fast);
}

@keyframes fadeInOverlay {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ========================================
   Toast
   ======================================== */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-secondary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    z-index: 300;
    opacity: 0;
    transition: all var(--transition-normal);
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 380px) {
    .seed-words-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .wallet-card {
        padding: var(--spacing-lg);
    }

    .balance-ton {
        font-size: 28px;
    }

    .qr-container {
        width: 140px;
        height: 140px;
    }
}

/* Touch Feedback */
@media (hover: none) {
    .btn:active:not(:disabled) {
        transform: scale(0.98);
        opacity: 0.9;
    }

    .icon-btn:active {
        transform: scale(0.9);
    }

    .dropdown-item:active {
        background: var(--bg-tertiary);
    }
}

/* Safe Area for iOS */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .footer {
        padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
    }

    .toast {
        bottom: calc(100px + env(safe-area-inset-bottom));
    }
}

/* Scrollbar Styling */
.main-content::-webkit-scrollbar {
    width: 4px;
}

.main-content::-webkit-scrollbar-track {
    background: transparent;
}

.main-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.main-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .dropdown-menu,
    .modal-overlay,
    .toast,
    .btn {
        display: none !important;
    }

    .wallet-card {
        box-shadow: none;
        border: 1px solid #000;
    }
}

/* ========================================
   Modals
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 250;
    padding: var(--spacing-md);
    animation: fadeIn var(--transition-fast);
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--border-radius-xl);
    width: 100%;
    max-width: 380px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp var(--transition-normal);
}

.modal-small {
    max-width: 320px;
}

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

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

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.modal-body {
    padding: var(--spacing-lg);
}

.modal-body .input {
    margin-bottom: var(--spacing-md);
}

/* Receive Modal */
.receive-qr {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.receive-qr img,
.receive-qr canvas {
    max-width: 100%;
    max-height: 100%;
}

.receive-hint {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.receive-address-box {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    word-break: break-all;
}

.receive-address {
    font-size: 13px;
    font-family: 'SF Mono', 'Consolas', monospace;
    color: var(--text-primary);
    line-height: 1.5;
}

/* Transaction Detail Modal */
.tx-detail-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.tx-detail-type {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 12px;
    margin-bottom: var(--spacing-sm);
}

.tx-detail-type.incoming {
    color: var(--color-success);
    background: rgba(52, 199, 89, 0.1);
}

.tx-detail-type.outgoing {
    color: var(--color-danger);
    background: rgba(255, 59, 48, 0.1);
}

.tx-detail-value {
    font-size: 28px;
    font-weight: 700;
}

.tx-detail-value.incoming {
    color: var(--color-success);
}

.tx-detail-value.outgoing {
    color: var(--color-danger);
}

.tx-detail-rows {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.tx-detail-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tx-detail-label {
    font-size: 12px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tx-detail-text {
    font-size: 14px;
    color: var(--text-primary);
}

.tx-detail-value-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.tx-detail-address,
.tx-detail-hash {
    font-size: 13px;
    font-family: 'SF Mono', 'Consolas', monospace;
    color: var(--text-primary);
    word-break: break-all;
    flex: 1;
}

.copy-btn-small {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.copy-btn-small:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Make transaction items clickable */
.transaction-item {
    cursor: pointer;
}

/* TonViewer link in tx detail modal */
.tx-viewer-link {
    margin-top: var(--spacing-lg);
}

/* Send Screen Wallet Info */
.send-wallet-info {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.send-wallet-selector {
    margin-bottom: var(--spacing-sm);
}

.send-wallet-selector .wallet-select {
    margin-top: var(--spacing-xs);
}

.send-balance {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.send-balance-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.send-balance-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
}

/* MAX button */
.form-group {
    position: relative;
}

.btn-max {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(25%);
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    font-family: inherit;
    color: var(--color-primary);
    background: var(--color-primary-light);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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