:root {
    --text-primary: #000000;
    --text-secondary: #8e8e93;
    --text-tertiary: #c7c7cc;
    --background-primary: #ffffff;
    --background-secondary: #f8f9fa;
    --cashapp-green: #00d64b;
    --cashapp-green-dark: #00c43d;
    --border-color: #e0e0e0;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 10px 30px rgba(0,0,0,0.15);
    --shadow-heavy: 0 20px 60px rgba(0,0,0,0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-system: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', system-ui, sans-serif;
}

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

body {
    font-family: var(--font-system);
    background: linear-gradient(135deg, #00d64b 0%, #00c43d 25%, #00b337 50%, #00a332 75%, #00932d 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.app-container {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    gap: 50px;
    align-items: flex-start;
    min-height: 100vh;
}

/* CONTROL PANEL */
.control-panel {
    flex: 1;
    max-width: 400px;
    background: var(--background-primary);
    border-radius: 25px;
    padding: 30px;
    box-shadow: var(--shadow-medium);
    position: sticky;
    top: 20px;
    transform: translateY(0);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    animation: slideInLeft 0.8s ease-out;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 214, 75, 0.1);
}

.control-panel:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0, 214, 75, 0.2);
    border-color: rgba(0, 214, 75, 0.2);
}

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

.header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.header h1 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--cashapp-green), var(--cashapp-green-dark), #00a332, var(--cashapp-green));
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    animation: textGradient 3s ease infinite, bounceIn 0.8s ease-out;
    cursor: default;
    position: relative;
}

.header h1:hover {
    animation: textGradient 1s ease infinite, pulse 0.6s ease-in-out;
}

@keyframes textGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(-20px);
    }
    50% {
        opacity: 1;
        transform: scale(1.1) translateY(0);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.header p {
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
}

.control-group {
    margin-bottom: 25px;
}

.control-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 15px;
}

.control-group input,
.control-group select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--background-secondary);
    transform: translateY(0);
    position: relative;
}

.control-group input:hover,
.control-group select:hover {
    transform: translateY(-2px);
    border-color: rgba(0, 214, 75, 0.3);
    box-shadow: 0 8px 20px rgba(0, 214, 75, 0.1);
}

.control-group input:focus,
.control-group select:focus {
    outline: none;
    border-color: var(--cashapp-green);
    background: var(--background-primary);
    box-shadow: 0 0 0 4px rgba(0, 214, 75, 0.15), 0 12px 30px rgba(0, 214, 75, 0.2);
    transform: translateY(-4px) scale(1.02);
}

.control-group small {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}

.privacy-section {
    background: linear-gradient(135deg, #f8f9ff, #f0f0f5, #f8f9ff);
    background-size: 200% 200%;
    border-radius: 15px;
    padding: 20px;
    margin: 30px 0;
    animation: privacyFloat 0.8s ease-out, privacyGradient 6s ease infinite;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 214, 75, 0.1);
    position: relative;
    overflow: hidden;
}

.privacy-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 214, 75, 0.1);
    border-color: rgba(0, 214, 75, 0.3);
}

.privacy-section::before {
    content: '🔒';
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 16px;
    opacity: 0.5;
    animation: lockFloat 2s ease-in-out infinite;
}

@keyframes privacyFloat {
    0% {
        opacity: 0;
        transform: translateX(-20px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes privacyGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes lockFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.privacy-section h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.checkbox-label {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    padding: 8px 0;
    transition: var(--transition);
}

.checkbox-label:hover {
    color: var(--cashapp-green);
    transform: translateX(4px);
}

.checkbox-label input[type="checkbox"] {
    margin-right: 12px;
    width: 18px;
    height: 18px;
    accent-color: var(--cashapp-green);
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
}

.primary-btn, .secondary-btn {
    padding: 18px 24px;
    border: none;
    border-radius: 16px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.3px;
}

.primary-btn {
    background: linear-gradient(135deg, var(--cashapp-green), var(--cashapp-green-dark), #00a332);
    background-size: 200% 200%;
    color: white;
    box-shadow: 0 8px 25px rgba(0, 214, 75, 0.3);
    position: relative;
    overflow: hidden;
    animation: buttonSlideIn 0.6s ease-out;
}

.primary-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 214, 75, 0.5);
    background-position: 100% 0;
    animation: buttonGlow 0.6s ease-in-out;
}

.primary-btn:active {
    transform: translateY(-1px) scale(0.98);
    box-shadow: 0 5px 15px rgba(0, 214, 75, 0.4);
}

.primary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s;
}

.primary-btn:hover::before {
    left: 100%;
}

@keyframes buttonSlideIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes buttonGlow {
    0% { box-shadow: 0 8px 25px rgba(0, 214, 75, 0.3); }
    50% { box-shadow: 0 15px 40px rgba(0, 214, 75, 0.6); }
    100% { box-shadow: 0 15px 40px rgba(0, 214, 75, 0.5); }
}

.secondary-btn {
    background: linear-gradient(135deg, #333, #555);
    color: white;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.secondary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
}

.stats {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #e8f5e8, #f0f8f0, #e8f5e8);
    background-size: 200% 200%;
    border-radius: 15px;
    border: 1px solid rgba(0, 214, 75, 0.2);
    animation: statsFloat 0.8s ease-out, statsGradient 4s ease infinite;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stats:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 214, 75, 0.15);
    border-color: rgba(0, 214, 75, 0.4);
}

.stats::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 214, 75, 0.1) 0%, transparent 70%);
    opacity: 0;
    animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes statsFloat {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes statsGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

.stat-item {
    flex: 1;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 24px;
    font-weight: 800;
    color: var(--cashapp-green);
    margin-bottom: 4px;
    animation: countUp 0.8s ease-out;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.stat-number:hover {
    transform: scale(1.1);
    color: var(--cashapp-green-dark);
    text-shadow: 0 0 10px rgba(0, 214, 75, 0.3);
}

@keyframes countUp {
    0% {
        opacity: 0;
        transform: scale(0.5) translateY(10px);
    }
    50% {
        transform: scale(1.1) translateY(-5px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.stat-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* PHONE DISPLAY - Using provided iPhone design */
.phone-display {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.phone-container {
    position: relative;
    width: 375px;
    height: 812px;
}

.iphone-frame {
    width: 100%;
    height: 100%;
    background: var(--background-primary);
    border-radius: 40px;
    border: 8px solid #1a1a1a;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: slideInRight 0.8s ease-out;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.iphone-frame:hover {
    transform: translateY(-5px) rotateY(5deg);
    box-shadow: 0 30px 60px rgba(0, 214, 75, 0.2), 0 20px 40px rgba(0, 0, 0, 0.3);
}

@keyframes slideInRight {
    0% {
        opacity: 0;
        transform: translateX(100px) rotateY(20deg);
    }
    100% {
        opacity: 1;
        transform: translateX(0) rotateY(0deg);
    }
}

.dynamic-island {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 126px;
    height: 37px;
    background: #1a1a1a;
    border-radius: 19px;
    z-index: 10;
    animation: islandPulse 3s ease-in-out infinite;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dynamic-island:hover {
    transform: translateX(-50%) scale(1.05);
    box-shadow: 0 4px 15px rgba(26, 26, 26, 0.3);
}

@keyframes islandPulse {
    0%, 100% { 
        background: #1a1a1a;
        box-shadow: 0 0 0 0 rgba(26, 26, 26, 0.4);
    }
    50% { 
        background: #2a2a2a;
        box-shadow: 0 0 0 4px rgba(26, 26, 26, 0.1);
    }
}

.phone-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding-top: 0;
    position: relative;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 30px 0;
    height: 54px;
    position: relative;
    z-index: 5;
}

.status-left {
    display: flex;
    align-items: center;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.status-right {
    display: flex;
    align-items: center;
}

/* Real iPhone Status Bar Icons with correct spacing */
.signal-icon {
    display: flex;
    align-items: center;
    margin-right: 8px;
}

.wifi-icon {
    display: flex;
    align-items: center;
    margin-right: 6px;
}

.battery-container {
    display: flex;
    align-items: center;
}

.status-icon {
    height: 12px;
    width: auto;
    object-fit: contain;
}

.battery-icon-img {
    height: 14px;
    width: auto;
    object-fit: contain;
}

.screen-content {
    flex: 1;
    background: var(--background-primary);
    position: relative;
    display: flex;
    flex-direction: column;
}

.home-indicator {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 134px;
    height: 5px;
    background: #1a1a1a;
    border-radius: 2.5px;
}

/* CASH APP CONTENT */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    flex-shrink: 0;
}

.close-button, .menu-button {
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    transition: var(--transition);
}

.close-button:hover, .menu-button:hover {
    background: rgba(0, 0, 0, 0.05);
}

.profile-section {
    text-align: center;
    padding: 0 30px;
    margin-bottom: 40px;
}

.profile-image-container {
    margin-bottom: 20px;
}

.profile-image {
    width: 120px;
    height: 120px;
    border-radius: 60px;
    overflow: hidden;
    margin: 0 auto;
    position: relative;
    background: #f0f0f0;
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 800;
    color: #999;
    background: linear-gradient(135deg, #e0e0e0, #f0f0f0);
}

.recipient-name {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.payment-info {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}

.cashtag {
    color: var(--text-secondary);
    font-weight: 600;
}

.transaction-section {
    text-align: center;
    padding: 0 30px;
    margin-bottom: 50px;
}

.amount-display {
    margin-bottom: 20px;
}

.currency {
    font-size: 64px;
    font-weight: 700;
    color: var(--text-primary);
    margin-right: 4px;
}

.amount {
    font-size: 64px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -2px;
}

.transaction-details {
    margin-bottom: 20px;
}

.note {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.timestamp {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}

.transaction-actions {
    padding: 0 30px;
    padding-bottom: 118px;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.completed-button {
    background: var(--cashapp-green);
    color: white;
    border: none;
    padding: 16px 60px;
    border-radius: 25px;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(0, 214, 75, 0.3);
    width: 85%;
    justify-content: center;
}

.completed-button:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(0, 214, 75, 0.4);
}

.checkmark {
    font-size: 16px;
    font-weight: 900;
}

.receipt-button {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid #d1d1d6;
    padding: 14px 60px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 85%;
    justify-content: center;
    display: flex;
    align-items: center;
}

.receipt-button:hover {
    background: rgba(0, 0, 0, 0.05);
    border-color: #999;
}

/* BOTTOM NAVIGATION WITH REAL CASH APP ICONS */
.bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 10px 30px 30px 30px;
    border-top: 1px solid #f0f0f0;
    background: var(--background-primary);
    flex-shrink: 0;
    position: absolute;
    bottom: 17px;
    left: 0;
    right: 0;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.nav-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 20px;
    transition: var(--transition);
}

.nav-content:hover {
    background: rgba(0, 0, 0, 0.05);
}

.balance-amount {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-secondary);
}

.nav-icon-img {
    height: 30px;
    width: 30px;
    object-fit: contain;
    filter: opacity(1);
    transition: var(--transition);
}

.nav-content:hover .nav-icon-img {
    filter: opacity(1);
}

/* Ensure search icon is always visible */
#search-icon {
    filter: opacity(1) !important;
    display: block !important;
    visibility: visible !important;
    width: 30px !important;
    height: 30px !important;
    object-fit: contain !important;
}

.cash-active {
    /* No background - just the icon like other nav items */
}

.cash-active:hover {
    background: rgba(0, 0, 0, 0.05);
}

.cash-icon-img {
    height: 30px;
    width: 30px;
    object-fit: contain;
}

.activity-item {
    position: relative;
}

/* PRIVACY STYLES */
.hidden-name {
    background: #e0e0e0;
    color: transparent;
    border-radius: 6px;
    padding: 4px 12px;
    user-select: none;
}

.hidden-cashtag {
    background: #e0e0e0;
    color: transparent;
    border-radius: 6px;
    padding: 2px 8px;
    user-select: none;
}

.hidden-avatar {
    background: #e0e0e0 !important;
}

.hidden-note {
    background: #e0e0e0;
    color: transparent;
    border-radius: 6px;
    padding: 4px 12px;
    user-select: none;
}

/* RESPONSIVE DESIGN */
@media (max-width: 1200px) {
    .app-container {
        gap: 30px;
    }
    .phone-container {
        transform: scale(0.9);
    }
}

@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
        padding: 15px;
        gap: 30px;
    }
    
    .control-panel {
        max-width: none;
        position: static;
        margin-bottom: 20px;
        animation: slideInUp 0.6s ease-out;
    }
    
    .phone-container {
        transform: scale(0.85);
        animation: slideInUp 0.8s ease-out;
    }
    
    /* Reduce animations on mobile for better performance */
    .phone-container {
        animation: slideInUp 0.8s ease-out;
    }
    
    @keyframes slideInUp {
        0% {
            opacity: 0;
            transform: translateY(30px) scale(0.85);
        }
        100% {
            opacity: 1;
            transform: translateY(0) scale(0.85);
        }
    }
}

@media (max-width: 600px) {
    .control-panel {
        padding: 20px;
        border-radius: 20px;
    }
    
    .phone-container {
        transform: scale(0.75);
        margin: 10px auto;
    }
    
    .app-container {
        padding: 10px;
        gap: 20px;
    }
    
    .header h1 {
        font-size: 24px;
    }
    
    .primary-btn, .secondary-btn {
        padding: 16px 20px;
        font-size: 15px;
    }
    
    /* Optimize animations for mobile */
    * {
        animation-duration: 0.3s !important;
    }
    
    .control-panel:hover {
        transform: translateY(-2px); /* Reduced hover effect on mobile */
    }
    
    .iphone-frame:hover {
        transform: translateY(-2px); /* Reduced hover effect on mobile */
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .control-panel:hover,
    .iphone-frame:hover,
    .primary-btn:hover,
    .secondary-btn:hover,
    .stats:hover,
    .privacy-section:hover,
    .control-group input:hover,
    .control-group select:hover,
    .stat-number:hover {
        transform: none;
        box-shadow: inherit;
    }
    
    /* Keep only tap interactions for touch devices */
    .primary-btn:active,
    .secondary-btn:active {
        transform: scale(0.95);
    }
}