/* General Body & Root Styling */
:root {
    --primary-bg: #1a1a1a;
    --secondary-bg: #2a2a2a;
    --tertiary-bg: #3a3a3a;
    --primary-text: #e0e0e0;
    --secondary-text: #9e9e9e;
    --accent-color: #00ffaa;
    --accent-hover: #00e699;
    --border-color: #4f4f4f;
    --error-color: #ff5555;
    --success-color: #55ff55;
    --font-family: 'Press Start 2P', cursive;
}

body {
    font-family: var(--font-family);
    background-color: var(--primary-bg);
    color: var(--primary-text);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 1rem;
    box-sizing: border-box;
    image-rendering: pixelated;
}

/* Main Container */
.container {
    background-color: var(--secondary-bg);
    padding: 1.5rem; /* Adjusted for mobile */
    border: 2px solid var(--border-color);
    box-shadow: 6px 6px 0px #000;
    width: 100%;
    max-width: 600px;
    text-align: center;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1 {
    font-size: 1.5rem; /* Adjusted for smaller screens */
    margin-bottom: 1rem;
    color: var(--accent-color);
    text-shadow: 2px 2px 0px #000;
}

h2 {
    color: var(--primary-text);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-size: 1rem;
    text-align: left;
}

.subtitle {
    color: var(--secondary-text);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.7rem;
}

#statusText {
    margin-top: 1.5rem;
    color: var(--secondary-text);
    min-height: 20px;
    font-style: italic;
    font-size: 0.7rem;
}

/* Buttons */
button {
    font-family: var(--font-family);
    padding: 0.8rem 1rem;
    border: 2px solid var(--accent-color);
    background-color: var(--tertiary-bg);
    color: var(--accent-color);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.1s ease;
    width: 100%;
    box-sizing: border-box;
    text-transform: uppercase;
}

button:hover:not(:disabled), button:focus:not(:disabled) {
    background-color: var(--accent-color);
    color: var(--primary-bg);
    box-shadow: 2px 2px 0px #000;
    transform: translate(-1px, -1px);
}

button:active:not(:disabled) {
    box-shadow: none;
    transform: translate(2px, 2px);
}

button:disabled {
    border-color: var(--border-color);
    color: var(--secondary-text);
    background-color: var(--secondary-bg);
    cursor: not-allowed;
    box-shadow: none;
}

/* Inputs */
input[type="text"] {
    font-family: var(--font-family);
    background-color: var(--primary-bg);
    border: 2px solid var(--border-color);
    color: var(--primary-text);
    padding: 0.8rem 1rem;
    font-size: 0.8rem;
    width: 100%;
    box-sizing: border-box;
    flex-grow: 1;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Welcome Screen Specifics */
.user-id-container {
    background-color: var(--primary-bg);
    border: 2px solid var(--border-color);
    padding: 1rem;
    margin: 1.5rem 0;
    text-align: left;
}

.user-id-container p {
    margin: 0 0 0.5rem 0;
    color: var(--secondary-text);
    font-size: 0.7rem;
}

#myIdWrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--tertiary-bg);
    padding: 0.5rem 1rem;
}

#myUserId {
    font-family: var(--font-family);
    font-size: 0.8rem;
    color: var(--primary-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#copyIdBtn {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    width: auto;
}
#copyIdBtn svg {
    stroke: var(--secondary-text);
}
#copyIdBtn:hover svg {
    stroke: var(--accent-color);
}

.connect-section, .saved-connections-container {
    margin-top: 1rem;
    text-align: left;
}

#savedConnectionsList {
    list-style: none;
    padding: 0.5rem;
    margin: 0;
    max-height: 150px;
    overflow-y: auto;
    background-color: var(--primary-bg);
    border: 2px solid var(--border-color);
}

#savedConnectionsList li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
}

#savedConnectionsList li:not(#noSavedConnections):hover {
    background-color: var(--tertiary-bg);
}

.saved-id {
    font-family: var(--font-family);
    cursor: pointer;
    flex-grow: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.7rem;
}
.saved-id:hover {
    color: var(--accent-color);
}

.delete-saved-btn {
    padding: 0.4rem;
    font-size: 0.7rem;
    margin-left: 1rem;
    width: auto;
    border: none;
}
.delete-saved-btn svg {
    stroke: var(--secondary-text);
}
.delete-saved-btn:hover svg {
    stroke: var(--error-color);
}

#noSavedConnections {
    color: var(--secondary-text);
    padding: 1rem;
    text-align: center;
    justify-content: center;
    font-size: 0.7rem;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Chat Window Specifics */
#chatWindow {
    display: flex;
    flex-direction: column;
    height: 80vh; /* Increased height for mobile */
    max-height: 800px;
    width: 100%;
}

.chat-header {
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1rem;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
}

.chat-header p {
    margin: 0;
    color: var(--secondary-text);
}
.chat-header .stranger-id {
    font-family: var(--font-family);
    color: var(--primary-text);
}
#disconnectBtn {
    width: auto;
    font-size: 0.7rem;
    padding: 0.5rem 1rem;
    border-color: var(--secondary-text);
    color: var(--secondary-text);
}
#disconnectBtn:hover {
    border-color: var(--error-color);
    background-color: var(--error-color);
    color: var(--primary-text);
}

#messages {
    flex-grow: 1;
    overflow-y: auto;
    margin-bottom: 1rem;
    padding: 1rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background-color: var(--primary-bg);
    border: 2px solid var(--border-color);
}

.message {
    padding: 0.75rem 1rem;
    max-width: 80%;
    line-height: 1.5;
    word-wrap: break-word;
    font-size: 0.8rem;
    border: 2px solid var(--border-color);
}

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

.message.received {
    background-color: var(--tertiary-bg);
    color: var(--primary-text);
    align-self: flex-start;
}

.message.system {
    align-self: center;
    font-style: italic;
    color: var(--secondary-text);
    font-size: 0.7rem;
    background: none;
    border: none;
}

.message .chat-image {
    max-width: 100%;
    margin-top: 0.5rem;
    cursor: pointer;
    border: 2px solid var(--border-color);
}

.typing-indicator {
    align-self: flex-start;
    font-size: 0.8rem;
    font-style: italic;
    color: var(--secondary-text);
    padding: 0.5rem 1rem;
    margin-bottom: 1rem;
}

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

.media-btn {
    width: auto;
    padding: 0.7rem;
}

#sendBtn {
    padding: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
}

#sendBtn svg {
    stroke: var(--accent-color);
}

#sendBtn:hover svg, #sendBtn:focus svg {
    stroke: var(--primary-bg);
}

.chat-footer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

#saveStatus {
    color: var(--secondary-text);
    font-style: italic;
    font-size: 0.7rem;

}

/* Modal Styling */
#modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--secondary-bg);
    padding: 2rem;
    border: 2px solid var(--border-color);
    box-shadow: 6px 6px 0px #000;
    text-align: center;
    max-width: 400px;
    width: 90%;
}

#modalTitle {
    color: var(--accent-color);
    margin-top: 0;
    font-size: 1.2rem;
}

#modal-buttons {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}
#modalCloseBtn {
    width: auto;
    min-width: 100px;
}

/* Responsive adjustments for larger screens */
@media (min-width: 600px) {
    h1 {
        font-size: 2rem;
    }
    .subtitle, #statusText, .saved-id, #noSavedConnections, .chat-header, .message.system, #saveStatus {
        font-size: 0.8rem;
    }
    button, input[type="text"], .message {
        font-size: 0.9rem;
    }
    .container {
        padding: 2.5rem;
    }
}