:root {
    --primary: #00d2ff;
    --primary-dark: #3a7bd5;
    --bg-dark: #0f172a;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #10b981;
    --error: #ef4444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow-x: hidden;
}

/* Dynamic Background */
.background-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 10s infinite alternate ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-dark);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
    opacity: 0.3;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

.container {
    width: 100%;
    max-width: 500px;
    padding: 20px;
    z-index: 10;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

.admin-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    padding: 8px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.admin-link-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(0, 210, 255, 0.05);
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* Network Selector */
.network-options {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.network-card {
    width: 100%;
    max-width: 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px 10px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.network-card input {
    display: none;
}

.network-card img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 50%;
    background: white;
    padding: 4px;
}

.network-card span {
    font-size: 0.8rem;
    font-weight: 600;
}

.network-card:hover {
    background: rgba(255, 255, 255, 0.1);
}

.network-card.selected {
    border-color: var(--primary);
    background: rgba(0, 210, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.2);
}

/* Inputs */
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper i {
    position: absolute;
    left: 15px;
    color: var(--text-muted);
}

.input-wrapper input {
    width: 100%;
    padding: 15px 15px 15px 45px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 1rem;
    transition: all 0.3s ease;
    outline: none;
}

.input-wrapper input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 210, 255, 0.1);
}

/* Summary */
.conversion-summary {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 25px;
    border: 1px dashed var(--glass-border);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.summary-row:last-child {
    margin-bottom: 0;
}

.summary-row.total {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--glass-border);
    font-size: 1.1rem;
    color: var(--text-main);
    font-weight: 600;
}

.rate-badge {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

#receivableAmount {
    color: var(--accent);
    font-size: 1.3rem;
}

/* Button */
.submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px -10px var(--primary);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 25px -10px var(--primary);
}

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

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    width: 90%;
    max-width: 400px;
    text-align: center;
    transform: scale(0.9);
    transition: all 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--glass-border);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.modal-content h3 {
    margin-bottom: 10px;
    font-size: 1.4rem;
}

.modal-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 25px;
}

.steps {
    text-align: left;
    margin-bottom: 25px;
}

.step {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
    color: var(--text-muted);
    border-bottom: 1px solid var(--glass-border);
}

.step:last-child {
    border-bottom: none;
}

.step i {
    font-size: 1.2rem;
}

.step.active {
    color: var(--primary);
}

.step.success {
    color: var(--accent);
}

.close-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-btn:hover {
    opacity: 0.9;
}

.close-btn.hidden {
    display: none;
}

/* Support Panel */
.support-panel {
    margin-top: 25px;
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 15px;
    backdrop-filter: blur(10px);
}

.support-title {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-weight: 500;
}

.support-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.support-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 15px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
}

.support-btn.call {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
}

.support-btn.call:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary);
}

.support-btn.whatsapp {
    background: #25d366;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.2);
}

.support-btn.whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 211, 102, 0.3);
}