:root {
    --navy-dark: #0c1022;
    --navy-light: #11192e;
    --cyan: #00e5ff;
    --purple: #5e4bff;
    --platinum: #e8f1ff;
    --glass-bg: rgba(17, 25, 46, 0.7);
    --glass-border: rgba(0, 229, 255, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-light) 100%);
    color: var(--platinum);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--platinum);
}

.logo-svg {
    width: 40px;
    height: 40px;
    filter: drop-shadow(0 0 10px var(--cyan));
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--platinum);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--cyan);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--platinum);
    border-radius: 2px;
    transition: 0.3s;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
    z-index: 999;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 0.75rem 20px;
    color: var(--platinum);
    text-decoration: none;
    transition: background 0.3s;
}

.mobile-menu a:hover {
    background: rgba(0, 229, 255, 0.1);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.floating-card {
    width: 320px;
    height: 200px;
    margin: 0 auto 3rem;
    perspective: 1000px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.card-glow {
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, var(--cyan), var(--purple), var(--cyan));
    border-radius: 16px;
    animation: rotate 4s linear infinite;
    filter: blur(8px);
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.1), rgba(94, 75, 255, 0.1));
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s;
}

.floating-card:hover .card-inner {
    transform: rotateY(5deg) rotateX(5deg);
}

.card-chip {
    width: 50px;
    height: 40px;
    background: linear-gradient(135deg, #d4af37, #f9d668);
    border-radius: 8px;
}

.card-number {
    font-size: 1.5rem;
    letter-spacing: 3px;
    font-weight: 600;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    color: white;
    box-shadow: 0 4px 20px rgba(0, 229, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 229, 255, 0.6);
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--platinum);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(17, 25, 46, 0.9);
    border-color: var(--cyan);
}

.btn-success {
    background: linear-gradient(135deg, #00e5a0, #00c9ff);
    color: white;
}

.btn-large {
    width: 100%;
    padding: 1.125rem;
    font-size: 1.125rem;
}

.plans-section, .track-section, .admin-section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    opacity: 0.8;
    margin-bottom: 3rem;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.plan-card {
    position: relative;
    min-height: 350px;
    perspective: 1000px;
    cursor: pointer;
}

.plan-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 350px;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.plan-card.flipped .plan-card-inner {
    transform: rotateY(180deg);
}

.plan-card-front, .plan-card-back {
    position: absolute;
    width: 100%;
    min-height: 350px;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    padding: 2rem;
    display: flex;
    flex-direction: column;
}

.plan-card-back {
    transform: rotateY(180deg);
}

.plan-name {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.plan-price {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.plan-balance {
    font-size: 1.25rem;
    color: var(--cyan);
    margin-bottom: 1rem;
}

.plan-description {
    opacity: 0.8;
    margin-bottom: auto;
    line-height: 1.6;
}

.plan-features {
    list-style: none;
    margin: 1rem 0;
}

.plan-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.plan-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--cyan);
    font-weight: bold;
}

.plan-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: auto;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    padding: 3rem;
    max-width: 600px;
    margin: 0 auto;
}

.track-form {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.input-field {
    flex: 1;
    padding: 0.875rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--platinum);
    font-size: 1rem;
}

.input-field:focus {
    outline: none;
    border-color: var(--cyan);
}

.order-status {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(0, 229, 255, 0.1);
    border-radius: 12px;
    border: 1px solid var(--cyan);
}

.hidden {
    display: none !important;
}

.admin-login, .admin-dashboard {
    width: 100%;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(0, 0, 0, 0.3);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--cyan);
}

.stat-label {
    opacity: 0.7;
    margin-top: 0.5rem;
}

.orders-table-container {
    overflow-x: auto;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1rem;
}

.orders-table {
    width: 100%;
    border-collapse: collapse;
}

.orders-table th {
    text-align: left;
    padding: 1rem;
    border-bottom: 1px solid var(--glass-border);
    color: var(--cyan);
}

.orders-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: none;
}

.modal-overlay.active {
    display: block;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 2001;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
    transform: translate(-50%, -50%) scale(1);
}

.modal-large {
    max-width: 700px;
}

.modal-header {
    padding: 2rem;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: none;
    border: none;
    color: var(--platinum);
    font-size: 2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background 0.3s;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.modal-body {
    padding: 2rem;
}

.steps {
    display: grid;
    gap: 1.5rem;
}

.step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step h4 {
    margin-bottom: 0.5rem;
}

.order-summary {
    background: rgba(0, 0, 0, 0.3);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.progress-bar {
    display: flex;
    justify-content: space-between;
    margin: 2rem 0;
    position: relative;
}

.progress-step {
    flex: 1;
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.5;
    position: relative;
    padding-top: 2rem;
}

.progress-step.active {
    opacity: 1;
    color: var(--cyan);
}

.progress-step:before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--glass-border);
    background: var(--navy-dark);
}

.progress-step.active:before {
    border-color: var(--cyan);
    background: var(--cyan);
}

.coupon-section {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.coupon-message {
    margin-top: 0.5rem;
    padding: 0.75rem;
    border-radius: 8px;
    font-size: 0.875rem;
}

.coupon-message.success {
    background: rgba(0, 229, 160, 0.1);
    border: 1px solid #00e5a0;
    color: #00e5a0;
}

.coupon-message.error {
    background: rgba(255, 100, 100, 0.1);
    border: 1px solid #ff6464;
    color: #ff6464;
}

.payment-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tab-btn {
    flex: 1;
    padding: 0.875rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--platinum);
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    border-color: var(--cyan);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-description {
    text-align: center;
    opacity: 0.8;
    margin-bottom: 1.5rem;
}

.payment-note {
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.6;
    margin-top: 1rem;
}

.upi-details {
    background: rgba(0, 0, 0, 0.3);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.rate-display, .amount-display {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.rate-value, .amount-value {
    font-weight: 700;
    color: var(--cyan);
}

.qr-container {
    position: relative;
    width: 280px;
    height: 280px;
    margin: 2rem auto;
    background: white;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 0 40px rgba(0, 229, 255, 0.4);
}

.qr-skeleton {
    position: absolute;
    inset: 20px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}

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

.qr-code {
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.scan-bar {
    position: absolute;
    left: 20px;
    right: 20px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    animation: scan 2s ease-in-out infinite;
}

@keyframes scan {
    0%, 100% { top: 20px; }
    50% { bottom: 20px; }
}

.upi-info {
    text-align: center;
    margin-top: 1.5rem;
}

.upi-note {
    font-size: 0.875rem;
    opacity: 0.6;
    margin-top: 0.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.help-text {
    font-size: 0.875rem;
    opacity: 0.6;
    margin-top: 0.5rem;
}

.error-message {
    padding: 0.875rem;
    background: rgba(255, 100, 100, 0.1);
    border: 1px solid #ff6464;
    border-radius: 8px;
    color: #ff6464;
    margin: 1rem 0;
}

.footer {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    padding: 2rem 0;
    text-align: center;
}

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

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

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(200%);
    transition: transform 0.3s;
    z-index: 3000;
    max-width: 400px;
}

.toast.active {
    transform: translateY(0);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .plans-grid {
        grid-template-columns: 1fr;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        display: flex;
    }

    .plan-card {
        min-width: 280px;
        scroll-snap-align: start;
    }

    .track-form {
        flex-direction: column;
    }

    .coupon-section {
        flex-direction: column;
    }

    .payment-tabs {
        flex-direction: column;
    }

    .toast {
        right: 1rem;
        left: 1rem;
        bottom: 1rem;
    }
}