/* ========================================
   CSS RESET & BASE STYLES
   ======================================== */

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

:root {
    /* Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    
    /* Neutral Colors */
    --dark-bg: #0f172a;
    --card-bg: #1e293b;
    --card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Container for consistent width */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   NAVIGATION BAR
   ======================================== */

.navbar {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.token-symbol {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.token-name {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Button Styles */
.btn-connect {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.btn-connect:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-connect:active {
    transform: translateY(0);
}

.btn-connect.connected {
    background: linear-gradient(135deg, var(--success-color), #059669);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-bottom: 1px solid var(--border-color);
}

.hero-content {
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Hero Stats Cards */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: var(--card-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-info {
    text-align: left;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.stat-value {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
}

/* ========================================
   TOKEN INFORMATION SECTION
   ======================================== */

.token-info {
    padding: var(--spacing-xl) 0;
}

.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.info-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-glow);
}

.card-header {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

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

.description {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.1rem;
}

/* Contract Address Section */
.contract-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contract-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contract-address {
    background: var(--dark-bg);
    color: var(--primary-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    text-decoration: none;
    word-break: break-all;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: inline-block;
}

.contract-address:hover {
    background: var(--card-hover);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.external-link {
    margin-left: 0.5rem;
    font-size: 0.9rem;
}

.btn-copy {
    background: var(--card-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.btn-copy:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-copy.copied {
    background: var(--success-color);
    border-color: var(--success-color);
}

/* Wallet Status Section */
.wallet-status {
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wallet-disconnected {
    text-align: center;
}

.wallet-disconnected p:first-child {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.wallet-hint {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.wallet-connected {
    text-align: center;
}

.wallet-address-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.wallet-address-display {
    background: var(--dark-bg);
    color: var(--success-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    border: 1px solid var(--success-color);
    display: inline-block;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.2);
}

/* ========================================
   FEATURES SECTION
   ======================================== */

.features {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.05));
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: var(--card-hover);
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    text-align: center;
    margin-top: var(--spacing-xl);
}

.footer p {
    color: var(--text-muted);
}

/* ========================================
   RESPONSIVE DESIGN - MOBILE
   ======================================== */

@media (max-width: 768px) {
    /* Typography adjustments */
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    /* Navigation */
    .navbar .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .logo {
        flex-direction: column;
        text-align: center;
    }
    
    /* Stats grid - stack on mobile */
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    /* Features grid - stack on mobile */
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* Contract address - smaller font on mobile */
    .contract-address {
        font-size: 0.8rem;
        padding: var(--spacing-sm);
    }
    
    /* Wallet address display */
    .wallet-address-display {
        font-size: 0.9rem;
        padding: var(--spacing-sm);
    }
    
    /* Card padding reduction */
    .card-body {
        padding: var(--spacing-md);
    }
    
    /* Button full width on mobile */
    .btn-connect {
        width: 100%;
    }
}

@media (max-width: 480px) {
    /* Extra small screens */
    .hero-title {
        font-size: 1.5rem;
    }
    
    .stat-value {
        font-size: 1.25rem;
    }
    
    .contract-address {
        font-size: 0.7rem;
    }
}

/* ========================================
   TOKEN BALANCE SECTION
   ======================================== */

.balance-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.balance-display {
    background: var(--dark-bg);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.balance-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-light);
    font-family: 'Courier New', monospace;
}

.balance-symbol {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-left: var(--spacing-xs);
}

.btn-secondary {
    background: var(--card-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* ========================================
   SEND TOKENS FORM
   ======================================== */

.token-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.form-input {
    width: 100%;
    background: var(--dark-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    font-size: 1rem;
    font-family: 'Courier New', monospace;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.form-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: 0.9rem;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.form-status.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #ef4444;
    color: #ef4444;
}

.form-status.loading {
    display: block;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

/* ========================================
   RECEIVE TOKENS SECTION
   ======================================== */

.receive-container {
    text-align: center;
}

.receive-instructions {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.receive-address-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.receive-address {
    background: var(--dark-bg);
    color: var(--success-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    border: 2px solid var(--success-color);
    word-break: break-all;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.2);
    max-width: 100%;
}

.btn-copy-receive {
    background: var(--success-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-copy-receive:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

.btn-copy-receive.copied {
    background: var(--primary-color);
}

.qr-code-container {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-md);
    display: inline-block;
    box-shadow: var(--shadow-lg);
}

#qrCode canvas {
    display: block;
    margin: 0 auto;
}

/* ========================================
   RESPONSIVE ADJUSTMENTS FOR NEW FEATURES
   ======================================== */

@media (max-width: 768px) {
    .balance-amount {
        font-size: 2rem;
    }
    
    .balance-symbol {
        font-size: 1.2rem;
    }
    
    .receive-address {
        font-size: 0.8rem;
        padding: var(--spacing-sm);
    }
    
    .token-form {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .balance-amount {
        font-size: 1.5rem;
    }
    
    .receive-address {
        font-size: 0.7rem;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */

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

.info-card,
.feature-card,
.stat-card {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Stagger animation for cards */
.info-card:nth-child(1) { animation-delay: 0.1s; }
.info-card:nth-child(2) { animation-delay: 0.2s; }
.info-card:nth-child(3) { animation-delay: 0.3s; }

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }