:root {
    --bg-dark: #0f172a;
    --bg-panel: rgba(30, 41, 59, 0.7);
    --border-glass: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #8b5cf6;
    --primary-hover: #7c3aed;
    --secondary: #3b82f6;
    --success: #10b981;
    --info-bg: rgba(59, 130, 246, 0.1);
    --info-text: #60a5fa;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    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;
}

/* Background Effects */
.background-effects {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 10s infinite ease-in-out alternate;
}

.orb-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.orb-2 {
    bottom: -10%;
    right: -10%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    animation-delay: -5s;
}

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

/* Layout */
.app-container {
    width: 100%;
    max-width: 480px;
    padding: 2rem;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
}

.app-header {
    text-align: center;
    margin-bottom: 1rem;
}

.logo-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-placeholder h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Glass Panel */
.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: var(--transition);
    width: 100%;
}

.glass-panel h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.glass-panel p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

/* Forms & Inputs */
.input-group {
    margin-bottom: 1.25rem;
}

input[type="email"] {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

input[type="email"]:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
}

.w-full {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
    transform: translateY(-2px);
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-main);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* Steps */
.step {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    transition: opacity 0.5s ease, transform 0.5s ease, visibility 0.5s;
    position: relative;
    top: 0;
    left: 0;
}

.step.hidden {
    opacity: 0;
    transform: translateY(20px);
    visibility: hidden;
    position: absolute;
    pointer-events: none;
}

/* Download Step */
.download-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* License Step */
.license-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.icon-success {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    display: flex;
    align-items: center;
    justify-content: center;
}

.license-header h2 {
    margin: 0;
    color: var(--success);
}

.instructions-box {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 0.75rem;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.instructions-box p {
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}
.instructions-box p:last-of-type {
    margin-bottom: 1rem;
}
.instructions-box strong {
    color: var(--text-main);
}

.alert {
    display: flex;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: 0.5rem;
    font-size: 0.85rem;
    line-height: 1.4;
}

.alert-info {
    background: var(--info-bg);
    color: var(--info-text);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.alert svg {
    flex-shrink: 0;
}

.license-action {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.license-result {
    transition: var(--transition);
}

.license-result.hidden {
    display: none;
}

.license-label {
    text-align: center;
    font-size: 0.85rem !important;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem !important;
}

.code-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.4);
    border: 1px dashed var(--primary);
    padding: 1rem 1.25rem;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
}

#license-code {
    font-family: monospace;
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    font-weight: 700;
    color: var(--text-main);
    word-break: break-all;
}

.success-message {
    font-size: 0.85rem !important;
    color: var(--success) !important;
}
.text-center { text-align: center; }