/* ============================================
   SPACE THEME - A Journey Through the Cosmos
   ============================================ */

html[data-theme="space"] {
    --primary: #00d4ff;
    --primary-dark: #0088cc;
    --primary-light: #00ffff;
    --secondary: #b366ff;
    --bg-primary: #0a0e27;
    --bg-secondary: #1a1f3a;
    --text-primary: #e0e6ff;
    --text-secondary: #a0aeff;
    --border: #2a3f5f;
    --success: #00ff88;
    --error: #ff4466;
    --warning: #ffaa00;
}

html[data-theme="space"] {
    background: linear-gradient(135deg, #0a0e27 0%, #1a0a3a 50%, #0f1a2e 100%);
    background-attachment: fixed;
}

html[data-theme="space"] * {
    font-family: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

html[data-theme="space"] body {
    background: transparent;
    padding: 20px 10px;
    position: relative;
    overflow-x: hidden;
}

/* Animated starfield background with parallax effect */
html[data-theme="space"] body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 300%;
    height: 300%;
    background-image: 
        radial-gradient(1px 1px at 1% 2%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 3% 5%, #eee, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 5% 8%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 7% 3%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 9% 12%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 11% 18%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 13% 22%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 15% 7%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 17% 28%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 19% 35%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 21% 12%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 23% 40%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 25% 20%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 27% 30%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 29% 8%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 31% 45%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 33% 15%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 35% 38%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 37% 25%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 39% 5%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 41% 50%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 43% 18%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 45% 35%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 47% 10%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 49% 28%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 51% 42%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 53% 12%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 55% 48%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 57% 20%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 59% 38%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 61% 8%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 63% 32%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 65% 45%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 67% 18%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 69% 28%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 71% 5%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 73% 40%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 75% 22%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 77% 35%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 79% 12%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 81% 48%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 83% 20%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 85% 38%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 87% 8%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 89% 30%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 91% 45%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 93% 15%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 95% 42%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 97% 25%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 99% 38%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 2% 52%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 4% 65%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 6% 48%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 8% 58%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 10% 42%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 12% 68%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 14% 55%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 16% 72%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 18% 50%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 20% 62%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 22% 58%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 24% 75%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 26% 45%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 28% 70%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 30% 52%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 32% 68%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 34% 48%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 36% 65%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 38% 55%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 40% 72%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 42% 50%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 44% 62%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 46% 58%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 48% 75%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 50% 45%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 52% 70%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 54% 52%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 56% 68%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 58% 48%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 60% 65%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 62% 55%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 64% 72%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 66% 50%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 68% 62%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 70% 58%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 72% 75%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 74% 45%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 76% 70%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 78% 52%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 80% 68%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 82% 48%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 84% 65%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 86% 55%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 88% 72%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 90% 50%, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 92% 62%, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 94% 58%, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 96% 75%, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 98% 45%, #fff, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 33.33% 33.33%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.95;
}

html[data-theme="space"] #app {
    max-width: 500px;
    position: relative;
    z-index: 1;
}

/* Logo Header - Same Style as Container */
html[data-theme="space"] div[style*="background: var(--bg-primary); border-radius: 16px"] {
    background: linear-gradient(135deg, rgba(26, 31, 58, 0.85) 0%, rgba(42, 63, 95, 0.6) 100%) !important;
    border: 1px solid rgba(0, 212, 255, 0.2) !important;
    border-radius: 16px !important;
    box-shadow: 
        0 8px 32px rgba(0, 212, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
    backdrop-filter: blur(10px);
}

html[data-theme="space"] .container {
    background: linear-gradient(135deg, rgba(26, 31, 58, 0.85) 0%, rgba(42, 63, 95, 0.6) 100%);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 16px;
    padding: 32px 24px;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: 
        0 8px 32px rgba(0, 212, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

html[data-theme="space"] .container::before {
    display: none;
}

/* Subtle glow effect on container edges */
html[data-theme="space"] .container::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

html[data-theme="space"] h1,
html[data-theme="space"] h2,
html[data-theme="space"] h3 {
    color: #00ffff;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
    margin-top: 0;
}

html[data-theme="space"] h1 {
    margin-bottom: 24px;
    text-align: center;
    font-size: 28px;
    animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { text-shadow: 0 0 20px rgba(0, 255, 255, 0.3); }
    50% { text-shadow: 0 0 30px rgba(0, 212, 255, 0.6), 0 0 40px rgba(179, 102, 255, 0.3); }
}

html[data-theme="space"] h2 {
    font-size: 20px;
    margin-bottom: 16px;
}

html[data-theme="space"] h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

html[data-theme="space"] .upload-zone {
    border: 2px dashed rgba(0, 212, 255, 0.4);
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.5) 0%, rgba(26, 31, 58, 0.5) 100%);
    border-radius: 12px;
    padding: 40px 24px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

html[data-theme="space"] .upload-zone::before {
    display: none;
}

html[data-theme="space"] .upload-zone:hover {
    border-color: rgba(0, 212, 255, 0.6);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(26, 31, 58, 0.7) 100%);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

html[data-theme="space"] .upload-zone.dragover {
    border-color: #00ffff;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.1) 0%, rgba(26, 31, 58, 0.8) 100%);
    box-shadow: 
        0 0 30px rgba(0, 255, 255, 0.4),
        inset 0 0 20px rgba(0, 255, 255, 0.1);
}

html[data-theme="space"] .upload-zone.dragover .upload-text {
    color: #00ffff;
}

html[data-theme="space"] .upload-icon {
    font-size: 48px;
    margin-bottom: 12px;
    display: block;
    text-align: center;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

html[data-theme="space"] .upload-text {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    transition: color 0.3s ease;
    line-height: 1.4;
}

html[data-theme="space"] .file-selected-info {
    margin-top: 16px;
}

html[data-theme="space"] .file-selected-name {
    color: #00ffff;
    font-weight: 600;
    word-break: break-word;
    margin-bottom: 6px;
    font-size: 14px;
}

html[data-theme="space"] .file-selected-size {
    color: var(--text-secondary);
    font-size: 13px;
}

html[data-theme="space"] input[type="password"],
html[data-theme="space"] input[type="text"] {
    width: 100%;
    background: rgba(26, 31, 58, 0.8);
    color: var(--text-primary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

html[data-theme="space"] input[type="password"]::placeholder,
html[data-theme="space"] input[type="text"]::placeholder {
    color: rgba(160, 174, 255, 0.5);
}

html[data-theme="space"] input[type="password"]:focus,
html[data-theme="space"] input[type="text"]:focus {
    background: rgba(26, 31, 58, 0.95);
    border-color: #00ffff;
    outline: none;
    box-shadow: 0 0 12px rgba(0, 212, 255, 0.3);
}

html[data-theme="space"] .form-group {
    margin-bottom: 20px;
}

html[data-theme="space"] label {
    display: block;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

html[data-theme="space"] button {
    width: 100%;
    background: linear-gradient(135deg, #00d4ff 0%, #00ffff 100%);
    border: 1px solid rgba(0, 255, 255, 0.3);
    color: #0a0e27;
    padding: 14px 20px;
    font-size: 14px;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
    font-family: inherit;
}

html[data-theme="space"] button:hover {
    background: linear-gradient(135deg, #00ffff 0%, #00d4ff 100%);
    box-shadow: 0 6px 25px rgba(0, 212, 255, 0.4);
    transform: translateY(-2px);
}

html[data-theme="space"] button:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(0, 212, 255, 0.2);
}

html[data-theme="space"] button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

html[data-theme="space"] .btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #00ffff 100%);
    width: 100%;
    text-align: center;
}

html[data-theme="space"] .btn-primary:hover {
    background: linear-gradient(135deg, #00ffff 0%, #00d4ff 100%);
}

html[data-theme="space"] .btn-secondary {
    background: linear-gradient(135deg, #b366ff 0%, #7733ff 100%);
    border-color: rgba(179, 102, 255, 0.3);
}

html[data-theme="space"] .btn-secondary:hover {
    background: linear-gradient(135deg, #7733ff 0%, #b366ff 100%);
    box-shadow: 0 6px 25px rgba(179, 102, 255, 0.3);
}

html[data-theme="space"] .button-group {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

html[data-theme="space"] .button-group button {
    flex: 1;
    width: 100%;
}

html[data-theme="space"] .status {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 500;
    border: 1px solid;
    background: rgba(26, 31, 58, 0.6);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

html[data-theme="space"] .status.success {
    border-color: rgba(0, 255, 136, 0.3);
    color: #00ff88;
    background: rgba(0, 255, 136, 0.05);
}

html[data-theme="space"] .status.error {
    border-color: rgba(255, 68, 102, 0.3);
    color: #ff4466;
    background: rgba(255, 68, 102, 0.05);
}

html[data-theme="space"] .status.loading {
    border-color: rgba(0, 212, 255, 0.3);
    color: #00d4ff;
    background: rgba(0, 212, 255, 0.05);
}

html[data-theme="space"] .share-link {
    background: rgba(26, 31, 58, 0.8);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
    word-break: break-all;
    font-size: 13px;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
}

html[data-theme="space"] .copy-hint {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 8px;
}

html[data-theme="space"] .file-info {
    background: linear-gradient(135deg, rgba(26, 31, 58, 0.6) 0%, rgba(42, 63, 95, 0.4) 100%);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

html[data-theme="space"] .file-info p {
    margin: 0 0 12px 0;
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

html[data-theme="space"] .file-name {
    color: #00ffff;
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    word-break: break-word;
}

html[data-theme="space"] .file-name span:first-child {
    font-size: 40px;
}

html[data-theme="space"] .spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-top-color: #00d4ff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

html[data-theme="space"] .home-link,
html[data-theme="space"] .back-link {
    text-align: center;
    margin-top: 20px;
}

html[data-theme="space"] .home-link a,
html[data-theme="space"] .back-link a {
    color: #00d4ff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

html[data-theme="space"] .home-link a:hover,
html[data-theme="space"] .back-link a:hover {
    color: #00ffff;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

html[data-theme="space"] .theme-btn {
    background: linear-gradient(135deg, rgba(26, 31, 58, 0.8) 0%, rgba(42, 63, 95, 0.6) 100%);
    border: 2px solid rgba(0, 212, 255, 0.3);
    color: var(--text-primary);
    padding: 12px !important;
    border-radius: 8px !important;
    cursor: pointer !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
    font-size: 12px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 4px !important;
    min-width: 70px !important;
    white-space: normal !important;
    word-break: break-word !important;
}

html[data-theme="space"] .theme-btn:hover {
    border-color: #00d4ff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

html[data-theme="space"] .theme-btn.active {
    background: linear-gradient(135deg, #00d4ff 0%, #00ffff 100%);
    color: #0a0e27;
    border-color: #00ffff;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

html[data-theme="space"] .theme-close-btn {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.3) 0%, rgba(0, 212, 255, 0.1) 100%);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: #00d4ff;
}

html[data-theme="space"] .theme-close-btn:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.5) 0%, rgba(0, 212, 255, 0.3) 100%);
}

html[data-theme="space"] .warning-box {
    background: rgba(255, 170, 0, 0.1);
    border: 1px solid rgba(255, 170, 0, 0.3);
    color: #ffaa00;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 16px;
}

html[data-theme="space"] .info-text {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
}

/* Fade transition for theme changes */
html[data-theme="space"] .fade-transition {
    animation: fadeIn 0.3s ease;
}

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