/* Decoder Subscription Renewal - Modern UI Stylesheet */

:root {
    /* Modern Color Palette */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-primary-alt: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-secondary: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --gradient-success: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    --gradient-dark: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    
    /* Solid Colors */
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    
    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-glass: rgba(255, 255, 255, 0.25);
    --bg-glass-strong: rgba(255, 255, 255, 0.85);
    --bg-overlay: rgba(15, 23, 42, 0.7);
    
    /* Border & Shadow */
    --border-color: rgba(226, 232, 240, 0.8);
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.4);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease-out;
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--gradient-primary);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(250, 113, 154, 0.2) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

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

.container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 50px;
    padding: 40px 20px;
    animation: fadeInDown 0.8s ease-out;
}

header h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 20px rgba(255, 255, 255, 0.3);
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.95);
    font-weight: 400;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Container - Glassmorphism */
.form-container {
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: var(--border-radius-lg);
    padding: 50px 45px;
    box-shadow: var(--shadow-xl), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

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

/* Form Groups */
.form-group {
    margin-bottom: 32px;
    animation: fadeIn 0.6s ease-out backwards;
}

.form-group:nth-child(1) { animation-delay: 0.3s; }
.form-group:nth-child(2) { animation-delay: 0.4s; }
.form-group:nth-child(3) { animation-delay: 0.5s; }
.form-group:nth-child(4) { animation-delay: 0.6s; }
.form-group:nth-child(5) { animation-delay: 0.7s; }

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 0.95rem;
    letter-spacing: -0.01em;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--shadow-md);
    transform: translateY(-2px);
}

.help-text {
    display: block;
    margin-top: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Package Options - Modern Cards */
.package-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 16px;
}

.package-option {
    display: block;
    cursor: pointer;
}

.package-option input[type="radio"] {
    display: none;
}

.package-card {
    padding: 28px 24px;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.package-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.package-option input[type="radio"]:checked + .package-card {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
    box-shadow: var(--shadow-lg), 0 0 0 4px rgba(99, 102, 241, 0.1);
    transform: translateY(-4px) scale(1.02);
}

.package-option input[type="radio"]:checked + .package-card::before {
    transform: scaleX(1);
}

.package-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.9);
}

.package-duration {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.package-price {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

/* Buttons - Modern Style */
.btn {
    padding: 16px 32px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-decoration: none;
    text-align: center;
    font-family: inherit;
    position: relative;
    overflow: hidden;
    letter-spacing: -0.01em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    width: 100%;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    position: relative;
    z-index: 1;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl), 0 0 30px rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-primary:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.form-actions {
    margin-top: 40px;
}

/* Error Message */
.error-message {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    padding: 16px 20px;
    border-radius: 12px;
    margin-top: 24px;
    border-left: 4px solid var(--error-color);
    box-shadow: var(--shadow-md);
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* Success Page */
.success-container {
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: var(--border-radius-lg);
    padding: 60px 50px;
    box-shadow: var(--shadow-xl), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: scaleIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.success-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-success);
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.success-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    background: var(--gradient-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-xl);
    animation: bounceIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
}

.success-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-success);
    opacity: 0.3;
    animation: pulse 2s ease-out infinite;
}

@keyframes bounceIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.2);
        opacity: 0;
    }
}

.success-container h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 30px;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.transaction-details {
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 35px;
    margin: 35px 0;
    text-align: left;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.transaction-details h2 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    text-align: center;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

.detail-row:hover {
    background: rgba(99, 102, 241, 0.05);
    margin: 0 -15px;
    padding-left: 15px;
    padding-right: 15px;
    border-radius: 8px;
}

.detail-row:last-child {
    border-bottom: none;
}

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

.detail-value {
    color: var(--text-primary);
    font-weight: 500;
}

.status-pending {
    color: var(--warning-color);
    font-weight: 700;
    padding: 4px 12px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 20px;
    display: inline-block;
}

.status-completed {
    color: var(--success-color);
    font-weight: 700;
    padding: 4px 12px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 20px;
    display: inline-block;
}

.status-failed {
    color: var(--error-color);
    font-weight: 700;
    padding: 4px 12px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 20px;
    display: inline-block;
}

.success-actions {
    margin-top: 40px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.success-message {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* Footer - State of the Art Modern Design */
.main-footer {
    margin-top: 80px;
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-radius: var(--border-radius-lg);
    border: 2px solid rgba(255, 255, 255, 0.4);
    padding: 60px 40px 35px;
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset,
        0 20px 25px -5px rgba(102, 126, 234, 0.1);
    color: var(--text-primary);
}

.main-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1) 0%, 
        rgba(118, 75, 162, 0.15) 50%,
        rgba(240, 147, 251, 0.1) 100%);
    border-radius: var(--border-radius-lg);
    z-index: -1;
}

.main-footer::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.3), 
        rgba(118, 75, 162, 0.3),
        rgba(240, 147, 251, 0.3));
    border-radius: var(--border-radius-lg);
    z-index: -2;
    opacity: 0;
    transition: opacity 0.5s;
    animation: borderGlow 3s ease-in-out infinite;
}

@keyframes borderGlow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

.footer-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.footer-section {
    animation: fadeInUp 0.6s ease-out;
}

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

.footer-section h3 {
    font-size: 2.25rem;
    font-weight: 900;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
    position: relative;
    display: inline-block;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
    animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInLeft {
    from {
        width: 0;
        opacity: 0;
    }
    to {
        width: 60px;
        opacity: 1;
    }
}

.footer-section h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 0.875rem;
    opacity: 0.9;
}

.footer-section p {
    color: rgba(15, 23, 42, 0.7);
    font-size: 0.95rem;
    line-height: 1.8;
    font-weight: 500;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 22px;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.4) 0%,
        rgba(255, 255, 255, 0.25) 100%);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 16px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent);
    transition: left 0.5s;
}

.contact-item:hover::before {
    left: 100%;
}

.contact-item:hover {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.7) 0%,
        rgba(255, 255, 255, 0.5) 100%);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 
        0 20px 25px -5px rgba(102, 126, 234, 0.3),
        0 10px 10px -5px rgba(102, 126, 234, 0.1),
        0 0 0 2px rgba(102, 126, 234, 0.3) inset;
    border-color: rgba(102, 126, 234, 0.5);
}

.contact-item:active {
    transform: translateY(-2px) scale(1.01);
}

.contact-icon {
    font-size: 1.5rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    flex-shrink: 0;
    box-shadow: 
        0 8px 16px rgba(102, 126, 234, 0.3),
        0 0 0 2px rgba(255, 255, 255, 0.2) inset;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.contact-item:hover .contact-icon {
    transform: rotate(5deg) scale(1.1);
    box-shadow: 
        0 12px 24px rgba(102, 126, 234, 0.4),
        0 0 0 3px rgba(255, 255, 255, 0.3) inset;
}

.contact-item:hover .contact-icon::before {
    width: 100%;
    height: 100%;
}

.contact-item span:not(.contact-icon) {
    flex: 1;
    display: flex;
    align-items: center;
    position: relative;
}

.footer-bottom {
    text-align: center;
    padding-top: 35px;
    border-top: 2px solid rgba(255, 255, 255, 0.2);
    color: rgba(15, 23, 42, 0.6);
    font-size: 0.875rem;
    font-weight: 500;
    position: relative;
}

.footer-bottom::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent,
        rgba(102, 126, 234, 0.5),
        transparent);
}

.footer-bottom p {
    margin: 0;
    letter-spacing: 0.5px;
}

/* Responsive Footer */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .main-footer {
        padding: 50px 25px 30px;
        margin-top: 60px;
    }
    
    .footer-section h3 {
        font-size: 1.75rem;
    }
    
    .contact-item {
        padding: 16px 20px;
        font-size: 0.9rem;
    }
    
    .contact-icon {
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
    }
}

/* Loading Spinner */
.btn-spinner {
    display: inline-block;
}

.btn-spinner::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-right-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 10px;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    header {
        padding: 30px 15px;
        margin-bottom: 35px;
    }

    .form-container {
        padding: 35px 25px;
    }

    .package-options {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .success-container {
        padding: 40px 30px;
    }

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

    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .form-container {
        padding: 30px 20px;
    }

    .package-card {
        padding: 22px 18px;
    }

    .package-price {
        font-size: 1.5rem;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Slide In Animation */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Selection */
::selection {
    background: rgba(99, 102, 241, 0.3);
    color: var(--text-primary);
}

/* Focus Visible */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}