:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: rgba(148, 163, 184, 0.2);
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --internet-for-all: #22d3ee;
}

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

body {
    font-family: 'Inter', 'Vazirmatn', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
    min-height: 100vh;
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 40px 0 30px;
}

.logo {
    font-size: 3rem;
    margin-bottom: 12px;
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.5));
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 300;
}

.security-badges {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 16px;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    color: #a5b4fc;
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 0.875rem;
    line-height: 1.5;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #fbbf24;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #34d399;
}

.alert-info {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: #a5b4fc;
}

textarea, input[type="password"] {
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 2px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    color: var(--text);
    font-size: 15px;
    transition: all 0.3s ease;
    unicode-bidi: plaintext;
    text-align: start;
}

textarea {
    min-height: 200px;
    line-height: 1.8;
    resize: vertical;
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
}

input[type="password"] {
    height: 50px;
    font-family: 'JetBrains Mono', monospace;
}

textarea:focus, input[type="password"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

textarea:dir(rtl), .content-box:dir(rtl) {
    font-family: 'Vazirmatn', sans-serif;
}

.password-section {
    margin: 20px 0;
    padding: 20px;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.password-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    cursor: pointer;
}

.password-toggle input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--secondary);
}

.password-input-wrapper {
    display: none;
    animation: slideDown 0.3s ease;
}

.password-input-wrapper.show {
    display: block;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.password-input-wrapper label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 20px 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

select {
    padding: 12px;
    background: rgba(15, 23, 42, 0.6);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 0.875rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 18px;
    padding-right: 36px;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: rgba(15, 23, 42, 0.4);
    border: 2px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
}

input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--secondary);
}

.btn {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.5);
    transition: all 0.3s ease;
}

.btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px -10px rgba(99, 102, 241, 0.6);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
}

.result-box {
    display: none;
    margin-top: 20px;
    padding: 20px;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 12px;
}

.result-box.show {
    display: block;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.url-container {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.url-input {
    flex: 1;
    min-width: 200px;
    padding: 12px;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 10px;
    color: #34d399;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    word-break: break-all;
}

.btn-copy {
    width: auto;
    padding: 12px 20px;
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.meta-info {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--text-muted);
    font-size: 0.8rem;
}

.decrypt-view {
    display: none;
}

.decrypt-view.show {
    display: block;
}

.password-prompt {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.password-prompt.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.password-prompt h3 {
    margin-bottom: 20px;
    font-size: 1.25rem;
}

.password-prompt input {
    max-width: 300px;
    margin: 0 auto 20px;
    display: block;
}

.password-prompt .btn {
    max-width: 300px;
    margin: 0 auto;
}

.content-box {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-top: 16px;
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    font-size: 15px;
    line-height: 1.8;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 500px;
    overflow-y: auto;
    unicode-bidi: plaintext;
    text-align: start;
}

.burn-warning {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 10px;
    margin-bottom: 16px;
    color: #f87171;
    font-weight: 500;
}

.loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

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

.how-it-works {
    margin-top: 40px;
    padding: 30px;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border);
    border-radius: 20px;
}

.how-it-works h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.steps {
    display: grid;
    gap: 16px;
}

.step {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 12px;
    transition: transform 0.2s;
}

.step:hover {
    transform: translateX(5px);
}

.step-number {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: #fff;
}

.step-content p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.tech-specs {
    margin-top: 24px;
    padding: 20px;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 12px;
}

.tech-specs h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: #34d399;
    display: flex;
    align-items: center;
    gap: 8px;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    font-size: 0.875rem;
}

.spec-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}

.spec-item::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
}

footer {
    text-align: center;
    padding: 40px 0 30px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin: 16px 0;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #a5b4fc;
}

.internet-for-all {
    margin: 30px 0;
    padding: 30px;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
    border: 1px solid rgba(34, 211, 238, 0.3);
    border-radius: 16px;
    position: relative;
}

.internet-for-all::before {
    content: '✊';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 1.5rem;
    opacity: 0.5;
}

.internet-for-all::after {
    content: '🌐';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.5rem;
    opacity: 0.5;
}

.hashtag {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--internet-for-all);
    text-shadow: 0 0 30px rgba(34, 211, 238, 0.5);
    letter-spacing: -0.02em;
}

.rights-text {
    margin-top: 16px;
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.rights-text strong {
    color: #f87171;
}

.tech-stack {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 20px;
    opacity: 0.6;
    font-size: 0.75rem;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    h1 { font-size: 1.5rem; }
    .options-grid { grid-template-columns: 1fr; }
    .card { padding: 16px; }
    .url-container { flex-direction: column; }
    textarea { min-height: 150px; }
    .specs-grid { grid-template-columns: 1fr; }
    .step { flex-direction: column; gap: 12px; }
    .hashtag { font-size: 1.5rem; }
    .internet-for-all::before,
    .internet-for-all::after { display: none; }
}