/* CypherBay - Dark Black & Green Theme */

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --bg-hover: #1a1a1a;
    --border-color: #1f1f1f;
    --text-primary: #39ff14;
    --text-secondary: #32e512;
    --text-muted: #28b80f;
    --accent-primary: #39ff14;
    --accent-secondary: #32e512;
    --accent-success: #39ff14;
    --accent-warning: #ffaa00;
    --accent-danger: #ff3333;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.8);
}

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

html, body {
    height: 100%;
}

body {
    font-family: 'Courier New', Courier, monospace;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

#app {
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

.page {
    display: none;
    flex-direction: column;
    min-height: 100vh;
}

.page.active {
    display: flex;
}

header {
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    position: relative;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.header-left,
.header-right {
    width: 60px;
}

.header-center {
    flex: 1;
    text-align: center;
}

.github-link {
    color: var(--text-muted);
    transition: color 0.2s;
}

.github-link:hover {
    color: var(--accent-primary);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

header h2 {
    font-size: 1.5rem;
    font-weight: 500;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1rem;
}

main {
    flex: 1;
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.landing-content {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.intro p {
    font-size: 1rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
}

.feature h3 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--accent-primary);
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    font-family: inherit;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s, opacity 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-primary {
    background-color: var(--accent-secondary);
    color: var(--bg-primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-primary);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-secondary);
}

.btn-back {
    background: none;
    border: none;
    color: var(--accent-primary);
    cursor: pointer;
    font-size: 1rem;
    font-family: inherit;
    padding: 0.5rem 1rem;
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.btn-back:hover {
    text-decoration: underline;
}

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    font-size: 0.8rem;
    font-family: inherit;
    color: var(--text-primary);
    transition: background-color 0.2s;
}

.btn-icon:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-secondary);
}

.transparency {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
}

.transparency h3 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--accent-warning);
}

.transparency ul {
    list-style: none;
}

.transparency li {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.3rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.transparency li::before {
    content: ">";
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

footer {
    padding: 1.5rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

footer p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    -webkit-appearance: none;
    appearance: none;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-group input[readonly] {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
}

.input-with-action {
    display: flex;
    gap: 0.5rem;
}

.input-with-action input {
    flex: 1;
}

.hint {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.warning-box {
    background-color: rgba(255, 170, 0, 0.1);
    border: 1px solid var(--accent-warning);
    border-radius: 4px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: var(--accent-warning);
}

.create-content, .join-content {
    max-width: 500px;
    margin: 2rem auto;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    position: relative;
}

.chat-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chat-session-label {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.chat-session-value {
    font-family: inherit;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-warning);
}

.status-indicator.connected .status-dot {
    background-color: var(--accent-success);
}

.status-indicator.disconnected .status-dot {
    background-color: var(--accent-danger);
}

.status-text {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 180px);
    max-width: 100%;
    padding: 0;
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.message {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: 4px;
    word-wrap: break-word;
}

.message.sent {
    align-self: flex-end;
    background-color: var(--accent-secondary);
    color: var(--bg-primary);
}

.message.received {
    align-self: flex-start;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.message-content {
    font-size: 0.9rem;
    white-space: pre-wrap;
}

.message-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.message.sent .message-meta {
    color: rgba(0, 0, 0, 0.6);
}

.message-error {
    color: var(--accent-danger);
    font-style: italic;
}

.system-message {
    text-align: center;
    padding: 0.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.alias-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.alias-bar label {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.alias-bar input {
    flex: 1;
    max-width: 150px;
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    font-family: inherit;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
}

.alias-bar input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.message-form {
    display: flex;
    gap: 0.75rem;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    align-items: flex-end;
}

.btn-attach {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.6rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s, border-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    flex-shrink: 0;
}

.btn-attach:hover:not(:disabled) {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-attach:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.upload-progress {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
}

.upload-progress.hidden {
    display: none;
}

.upload-progress-bar {
    flex: 1;
    height: 4px;
    background-color: var(--bg-hover);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.upload-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background-color: var(--accent-primary);
    animation: progress-animation 1s ease-in-out infinite;
}

@keyframes progress-animation {
    0% { left: -30%; }
    100% { left: 100%; }
}

.upload-progress-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.file-content {
    display: flex;
    flex-direction: column;
}

.message-image {
    max-width: 300px;
    max-height: 300px;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.message-image:hover {
    opacity: 0.9;
}

.message-video {
    max-width: 300px;
    max-height: 300px;
    border-radius: 4px;
}

.message-audio {
    width: 250px;
}

.file-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    color: var(--text-primary);
    text-decoration: none;
    transition: background-color 0.2s;
}

.file-link:hover {
    background-color: var(--bg-hover);
}

.file-link svg {
    flex-shrink: 0;
    color: var(--accent-primary);
}

.file-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.file-name {
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.message-form textarea {
    flex: 1;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-family: inherit;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    resize: none;
    min-height: 44px;
    max-height: 150px;
}

.message-form textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.message-form textarea:disabled {
    opacity: 0.5;
}

.message-form button {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: inherit;
    background-color: var(--accent-secondary);
    color: var(--bg-primary);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
    text-transform: uppercase;
}

.message-form button:hover:not(:disabled) {
    background-color: var(--accent-primary);
}

.message-form button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.crypto-info {
    padding: 0.75rem 1rem;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.crypto-info details {
    font-size: 0.8rem;
}

.crypto-info summary {
    cursor: pointer;
    color: var(--text-secondary);
    user-select: none;
}

.crypto-info summary:hover {
    color: var(--text-primary);
}

.crypto-info p {
    margin-top: 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--accent-success);
    color: var(--bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: 1000;
}

.toast.show {
    opacity: 1;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.2s;
    padding: 1rem;
}

.modal-overlay.show {
    opacity: 1;
}

.modal {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    max-width: 400px;
    width: 100%;
    transform: scale(0.95);
    transition: transform 0.2s;
}

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

.modal-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-icon {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-warning);
}

.modal-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--accent-warning);
}

.modal-body {
    padding: 1.25rem;
}

.modal-filename {
    font-family: monospace;
    background-color: var(--bg-tertiary);
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    word-break: break-all;
    color: var(--text-secondary);
}

.modal-warnings {
    list-style: none;
    padding: 0;
    margin: 0;
}

.modal-warnings li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.modal-warnings li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-warning);
}

.modal-warnings strong {
    color: var(--accent-warning);
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    padding: 1.25rem;
    border-top: 1px solid var(--border-color);
}

.modal-actions button {
    flex: 1;
    padding: 0.75rem;
}

.btn-danger {
    background-color: var(--accent-danger);
    color: #fff;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
    transition: background-color 0.2s, opacity 0.2s;
}

.btn-danger:hover:not(:disabled) {
    background-color: #ff5555;
}

.btn-danger:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-danger-small {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.4rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.2s, border-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-danger-small:hover {
    color: var(--accent-danger);
    border-color: var(--accent-danger);
}

.chat-header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.modal-error {
    color: var(--accent-danger);
    font-size: 0.85rem;
    margin-top: 0.75rem;
}

.modal-error.hidden {
    display: none;
}

.modal .form-group {
    margin-bottom: 0;
}

.modal .form-group input {
    margin-top: 0.5rem;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

@media (max-width: 600px) {
    header {
        padding: 1rem;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .tagline {
        font-size: 0.85rem;
    }

    .header-left,
    .header-right {
        width: 40px;
    }

    main {
        padding: 1rem;
    }

    .features {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .feature {
        padding: 1rem;
    }

    .feature h3 {
        font-size: 0.85rem;
    }

    .actions {
        gap: 0.75rem;
    }

    .btn-primary, .btn-secondary {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }

    .form-group label {
        font-size: 0.9rem;
    }

    .form-group input {
        padding: 0.875rem;
        font-size: 1rem;
    }

    .input-with-action {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .input-with-action input {
        flex: 1 1 100%;
    }

    .input-with-action button {
        flex: 1;
    }

    .warning-box {
        font-size: 0.85rem;
        padding: 0.875rem;
    }

    .transparency {
        padding: 1rem;
    }

    .transparency h3 {
        font-size: 0.9rem;
    }

    .transparency li {
        font-size: 0.8rem;
    }

    .chat-header {
        flex-wrap: wrap;
        gap: 0.5rem;
        padding: 0.75rem 1rem;
    }

    .btn-back {
        position: static;
        transform: none;
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    .chat-info {
        order: 3;
        width: 100%;
        justify-content: center;
        font-size: 0.8rem;
    }

    .chat-session-value {
        font-size: 0.75rem;
    }

    .status-indicator {
        font-size: 0.8rem;
    }

    .message {
        max-width: 90%;
    }

    .message-content {
        padding: 0.625rem 0.875rem;
        font-size: 0.9rem;
    }

    .alias-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
        padding: 0.75rem 1rem;
    }

    .alias-bar label {
        font-size: 0.8rem;
    }

    .alias-bar input {
        max-width: 100%;
        padding: 0.5rem;
    }

    .message-form {
        padding: 0.75rem;
        gap: 0.5rem;
    }

    .message-form textarea {
        font-size: 1rem;
        padding: 0.75rem;
        min-height: 48px;
    }

    .message-form button {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }

    footer {
        padding: 1rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 400px) {
    header h1 {
        font-size: 1.25rem;
        letter-spacing: 0.05em;
    }

    .tagline {
        font-size: 0.75rem;
    }

    main {
        padding: 0.75rem;
    }

    .intro p {
        font-size: 0.85rem;
    }

    .feature {
        padding: 0.875rem;
    }

    .btn-primary, .btn-secondary {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }

    .message-form {
        flex-direction: column;
    }

    .message-form button {
        width: 100%;
    }
}