:root {
    --bg-color: #0d0f14;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --accent: #ec4899;
    --success: #10b981;
    --error: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* Efeitos Visuais de Fundo (Glow) */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    animation: float 10s infinite alternate ease-in-out;
}

.glow-1 {
    background-color: var(--primary);
    top: -10%;
    left: -10%;
}

.glow-2 {
    background-color: var(--accent);
    bottom: -10%;
    right: -10%;
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translateY(0) scale(1); }
    100% { transform: translateY(30px) scale(1.1); }
}

/* Container Glassmorphism */
.glass-container {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 480px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.client-container {
    max-width: 420px;
    padding: 30px;
}

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

/* Cabeçalho */
.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1, .header h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.header p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.5;
}

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

.highlight-text {
    display: inline-block;
    background: rgba(99, 102, 241, 0.15);
    color: #818cf8;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Formulários */
.form-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 14px;
    font-weight: 500;
    color: #d1d5db;
}

input[type="text"] {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 15px;
    outline: none;
    transition: all 0.2s ease;
}

input[type="text"]:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Botões */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    border: none;
    padding: 14px 20px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px var(--primary);
}

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

/* Resultado Admin */
.result-container {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid var(--glass-border);
    animation: fadeIn 0.4s ease;
}

.success-text {
    color: var(--success);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 10px;
    text-align: center;
}

.link-box {
    display: flex;
    gap: 10px;
}

.link-box input {
    color: #93c5fd;
    font-family: monospace;
    font-size: 13px;
}

.btn-icon {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    width: 50px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--primary);
}

/* Estados da Tela de Cliente */
.state-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: fadeIn 0.4s ease;
}

.hidden {
    display: none !important;
}

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

/* QR Code Display */
.qr-wrapper {
    background: white;
    padding: 15px;
    border-radius: 20px;
    margin: 20px 0;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.qr-border {
    border: 2px dashed #e5e7eb;
    border-radius: 12px;
    width: 250px;
    height: 250px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.qr-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    animation: scaleIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

.qr-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: #9ca3af;
    font-size: 14px;
}

/* Spinners e Loaders */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(99, 102, 241, 0.2);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.spinner.small {
    width: 24px;
    height: 24px;
    border-width: 3px;
    margin-bottom: 0;
}

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

/* Status e Ícones */
.status-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 25px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.icon-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.error-bg {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

.success-bg {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

/* Instruções */
.instructions {
    text-align: left;
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
}

.instructions h3 {
    font-size: 15px;
    margin-bottom: 12px;
    color: #e5e7eb;
}

.instructions ol {
    padding-left: 20px;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
}

.instructions li {
    margin-bottom: 8px;
}

.instructions strong {
    color: #d1d5db;
}