/* --- NEUMORPHIC REDESIGN with User-Initiated Calls --- */
:root {
    --ruler: 16px;
    --color-bg: #EBECF0;
    --color-shadow: #BABECC;
    --color-white: #FFFFFF;
    --color-text: #61677C;
    --color-primary: #007bff;
    --color-danger: #AE1100;
    --color-success: #28a745;

    --shadow-outset: -5px -5px 15px var(--color-white), 5px 5px 15px var(--color-shadow);
    --shadow-inset: inset 2px 2px 5px var(--color-shadow), inset -5px -5px 10px var(--color-white);
    --shadow-outset-hover: -2px -2px 5px var(--color-white), 2px 2px 5px var(--color-shadow);
    --shadow-inset-active: inset 1px 1px 2px var(--color-shadow), inset -1px -1px 2px var(--color-white);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body,
html {
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

body,
p,
input,
select,
textarea,
button {
    font-family: 'Montserrat', sans-serif;
    letter-spacing: -0.2px;
    font-size: var(--ruler);
}

.app-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: calc(var(--ruler) * 2);
    padding: var(--ruler);
}
.main-header {
    padding: var(--ruler) 0;
    text-align: center;
    margin-bottom: calc(var(--ruler) * 2);
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--ruler);
}
.logo img {
    width: 50px;
    height: 50px;
}
.logo h1 {
    font-size: calc(var(--ruler) * 2.5);
    font-weight: 700;
    color: var(--color-text);
    text-shadow: 1px 1px 1px var(--color-white);
}
/* header h1 {
    text-align: center;
    font-size: calc(var(--ruler) * 2.5);
    font-weight: 700;
    color: var(--color-text);
    text-shadow: 1px 1px 1px var(--color-white);
} */

p {
    color: var(--color-text);
    text-shadow: 1px 1px 1px var(--color-white);
    line-height: 1.5;
}

.view {
    display: none;
    gap: calc(var(--ruler) * 2);
}

.view.active {
    display: flex;
    flex-direction: column;
}

.connection-type-selector {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-radius: var(--ruler);
    box-shadow: var(--shadow-inset);
    padding: calc(var(--ruler) / 2);
}

.button-tab {
    flex: 1;
    padding: calc(var(--ruler) / 2);
    border-radius: var(--ruler);
    background: transparent;
    border: none;
    color: var(--color-text);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.button-tab.active {
    background: var(--color-bg);
    box-shadow: var(--shadow-outset);
}

.mode-view {
    display: none;
    gap: calc(var(--ruler) * 2);
}

.mode-view.active {
    display: flex;
}

#online-mode-view,
#hotspot-mode-view {
    flex-direction: row;
    align-items: flex-start;
}

#lan-mode-view {
    flex-direction: column;
}

.card {
    padding: calc(var(--ruler) * 2);
    border-radius: calc(var(--ruler) * 1.5);
    background: var(--color-bg);
    box-shadow: var(--shadow-outset);
    display: flex;
    flex-direction: column;
    gap: var(--ruler);
    flex: 1;
}

.card.full-width {
    width: 100%;
}

.card h3 {
    margin: 0;
    font-weight: 600;
    color: var(--color-text);
    text-shadow: 1px 1px 1px var(--color-white);
    display: flex;
    align-items: center;
    gap: var(--ruler);
    font-size: 1.25rem;
}

.card h3 i {
    color: var(--color-primary);
}

.card h4 {
    margin: 0;
    font-weight: 600;
    color: var(--color-text);
    text-shadow: 1px 1px 1px var(--color-white);
}

hr {
    border: none;
    height: 2px;
    background: var(--color-shadow);
    border-radius: 1px;
    margin: var(--ruler) 0;
    opacity: 0.5;
}

.separator-text {
    font-weight: 600;
    color: var(--color-shadow);
    text-align: center;
    flex: 0;
    margin: 60px 0;
}

footer {
    text-align: center;
    color: var(--color-text);
    padding: var(--ruler);
}

.hidden {
    display: none !important;
}

button,
input {
    border: 0;
    outline: 0;
    font-size: var(--ruler);
    border-radius: calc(var(--ruler) * 20);
    padding: var(--ruler);
    background-color: var(--color-bg);
    text-shadow: 1px 1px 0 var(--color-white);
}

input {
    box-shadow: var(--shadow-inset);
    transition: all 0.2s ease-in-out;
    width: 100%;
    color: var(--color-text);
}

input:focus {
    box-shadow: inset 1px 1px 2px var(--color-shadow), inset -1px -1px 2px var(--color-white);
}

.button-primary,
.button-danger {
    color: var(--color-text);
    font-weight: 600;
    box-shadow: var(--shadow-outset);
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    width: 100%;
}

.button-primary:hover,
.button-danger:hover {
    box-shadow: var(--shadow-outset-hover);
}

.button-primary:active,
.button-danger:active {
    box-shadow: var(--shadow-inset-active);
}

.button-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

.button-danger {
    color: var(--color-danger);
}

.lan-share-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--ruler);
}

#toggle-lan-share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--ruler) / 2);
}

#toggle-lan-share-btn.sharing {
    color: var(--color-danger);
}

#lan-sharing-status {
    font-weight: 600;
    color: var(--color-text);
    text-shadow: 1px 1px 1px var(--color-white);
}

#lan-sharing-status strong {
    color: var(--color-primary);
}

.code-input {
    text-align: center;
    font-size: 1.5rem;
}

.code-box {
    background: var(--color-bg);
    border-radius: var(--ruler);
    padding: var(--ruler);
    margin: var(--ruler) 0;
    box-shadow: var(--shadow-inset);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--ruler);
}

#session-code-text {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-shadow: 1px 1px 1px var(--color-white);
}

#copy-code-btn {
    box-shadow: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

#copy-code-btn:hover {
    box-shadow: var(--shadow-outset);
}

.hotspot-controls {
    display: flex;
    flex-direction: row;
    gap: var(--ruler);
}

.card-half {
    flex: 1;
    text-align: center;
}

.user-discovery-section h4 {
    margin: 0 0 calc(var(--ruler) / 2) 0;
    font-weight: 600;
    color: var(--color-text);
}

#lan-user-list {
    min-height: 100px;
    padding: var(--ruler);
    border-radius: var(--ruler);
    box-shadow: var(--shadow-inset);
}

.placeholder-text {
    text-align: center;
    font-style: italic;
    color: var(--color-text);
    opacity: 0.7;
}

.lan-user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: calc(var(--ruler) / 2);
    border-radius: var(--ruler);
    transition: all 0.2s ease-in-out;
}

.lan-user-item:hover {
    background: var(--color-bg);
    box-shadow: var(--shadow-outset-hover);
}

.lan-user-item .user-name {
    font-weight: 600;
}

.lan-user-item .connect-btn {
    width: auto;
    padding: calc(var(--ruler) / 2) var(--ruler);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    max-width: 500px;
    width: 90%;
    text-align: center;
}

#qr-canvas {
    width: 256px !important;
    height: 256px !important;
    margin: var(--ruler) auto;
    border-radius: var(--ruler);
    box-shadow: var(--shadow-outset);
}

#qr-reader {
    width: 100%;
    max-width: 400px;
    margin: var(--ruler) auto;
    border-radius: var(--ruler);
    overflow: hidden;
}

#scanner-instructions {
    margin-top: var(--ruler);
    box-shadow: var(--shadow-inset);
    text-align: left;
}

.info-group {
    margin: calc(var(--ruler) / 2) 0;
}

.info-group label {
    display: block;
    font-weight: 600;
    margin-bottom: calc(var(--ruler) / 4);
}

.info-value {
    background: var(--color-bg);
    border-radius: var(--ruler);
    padding: calc(var(--ruler)/2);
    box-shadow: var(--shadow-inset);
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
}

.waiting-text {
    font-style: italic;
    color: var(--color-text);
    text-align: center;
}

/* Incoming Call Modal Styles */
#incoming-call-modal .modal-content h3 i {
    color: var(--color-success);
}

.incoming-call-actions {
    display: flex;
    gap: var(--ruler);
    margin-top: var(--ruler);
}

.incoming-call-actions .button-primary.accept {
    color: var(--color-success);
    flex: 1;
}

.incoming-call-actions .button-danger.decline {
    flex: 1;
}

/* Video Chat & Call Button Styles */
.video-container {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #000;
    position: relative;
    border-radius: var(--ruler);
    box-shadow: var(--shadow-inset);
    overflow: hidden;
    margin-bottom: var(--ruler);
    display: none;
}

#remote-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#local-video {
    position: absolute;
    width: 25%;
    max-width: 180px;
    bottom: var(--ruler);
    right: var(--ruler);
    border-radius: calc(var(--ruler) / 2);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 2px solid var(--color-white);
    opacity: 0;
    transition: opacity 0.3s ease;
    transform: scaleX(-1);
}

#local-video.visible {
    opacity: 1;
}

#call-buttons-container {
    display: flex;
    gap: calc(var(--ruler) / 2);
}

.call-control {
    width: calc(var(--ruler) * 3);
    height: calc(var(--ruler) * 3);
    padding: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--color-text);
    box-shadow: var(--shadow-outset);
    flex-shrink: 0;
}

.call-control:hover {
    box-shadow: var(--shadow-outset-hover);
}

.call-control:active {
    box-shadow: var(--shadow-inset-active);
}

.call-control.danger {
    color: var(--color-danger);
}

.call-control.toggled {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.chat-action-btn.primary {
    color: var(--color-primary);
}

/* Chat View Styles */
#connected-view {
    flex-grow: 1;
}

#chat-container {
    height: 100%;
    padding: var(--ruler);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.chat-header {
    padding: 0 var(--ruler) var(--ruler);
    border-bottom: 2px solid rgba(0, 0, 0, 0.05);
}

.chat-body {
    height: 85vh;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    overflow: hidden;
    padding-top: var(--ruler);
    gap: var(--ruler);
}

#chat-history {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--ruler);
    padding: var(--ruler);
    background: var(--color-bg);
    border-radius: var(--ruler);
    box-shadow: var(--shadow-inset);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

#chat-history::-webkit-scrollbar {
    display: none;
}

.chat-message,
.file-message {
    padding: var(--ruler);
    border-radius: var(--ruler);
    max-width: 75%;
    line-height: 1.5;
    box-shadow: var(--shadow-outset);
    position: relative;
    color: var(--color-text);
}

.chat-message.sent,
.file-message.sent {
    align-self: flex-end;
    background: var(--color-primary);
    color: var(--color-white);
    text-shadow: none;
    box-shadow: -5px -5px 15px #009cff, 5px 5px 15px #005892;
}

.chat-message.received,
.file-message.received {
    align-self: flex-start;
}

.file-message {
    display: flex;
    flex-direction: column;
    gap: calc(var(--ruler) / 2);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--ruler);
}

.file-icon i {
    font-size: 2rem;
    color: var(--color-primary);
}

.file-message.sent .file-icon i {
    color: var(--color-white);
}

.file-name {
    font-weight: 600;
}

.file-size {
    font-size: 0.8rem;
    opacity: 0.8;
}

.file-message.cancelled {
    opacity: 0.7;
}

.file-message.cancelled .file-name {
    text-decoration: line-through;
}

.action-area button {
    padding: calc(var(--ruler) / 2) var(--ruler);
    font-size: 0.9rem;
    border-radius: var(--ruler);
}

.file-status-text {
    font-weight: 600;
}

.file-status-text.completed {
    color: var(--color-success);
}

.file-status-text.cancelled {
    color: var(--color-danger);
}

.chat-input-area {
    display: flex;
    gap: var(--ruler);
    align-items: center;
    flex-shrink: 0;
}

#chat-input {
    flex-grow: 1;
}