:root {
    color-scheme: dark;
    --base-background: #060914;
    --base-surface: #10192f;
    --base-surface-elevated: #17233d;
    --base-border: rgba(255, 255, 255, 0.08);
    --base-text: #f5f7ff;
    --base-muted: #9aa6c8;
    --base-accent: #7c63ff;
    --base-positive: #5be9b9;
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 10px 24px rgba(4, 8, 18, 0.35);
    --shadow-md: 0 24px 60px rgba(5, 8, 19, 0.55);
    --transition: 180ms ease;

    --user-background: var(--base-background);
    --user-surface: var(--base-surface);
    --user-surface-elevated: var(--base-surface-elevated);
    --user-accent: var(--base-accent);

    --color-background: var(--user-background);
    --color-surface: var(--user-surface);
    --color-surface-elevated: var(--user-surface-elevated);
    --color-border: var(--base-border);
    --color-text: var(--base-text);
    --color-muted: var(--base-muted);
    --color-accent: var(--user-accent);
    --color-positive: var(--base-positive);
    --base-negative: #ff6b6b;
    --base-warning: #ffb347;
    --color-negative: var(--base-negative);
    --color-warning: var(--base-warning);
}

[data-theme="light"] {
    color-scheme: light;
    --base-background: #f4f6ff;
    --base-surface: #ffffff;
    --base-surface-elevated: #f7f9ff;
    --base-border: rgba(14, 23, 56, 0.1);
    --base-text: #0b1325;
    --base-muted: #4d5b7a;
    --base-accent: #5b5ef8;
    --base-positive: #008f5b;
    --user-background: var(--base-background);
    --user-surface: var(--base-surface);
    --user-surface-elevated: var(--base-surface-elevated);
    --user-accent: var(--base-accent);
    --color-border: rgba(14, 23, 56, 0.12);
    --base-negative: #d93232;
    --base-warning: #f6a700;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: 'Outfit', 'Inter', 'Segoe UI', system-ui, sans-serif;
    min-height: 100vh;
    background: radial-gradient(circle at 20% 20%, rgba(124, 99, 255, 0.35), transparent 55%),
        radial-gradient(circle at 80% 0%, rgba(91, 208, 255, 0.25), transparent 45%),
        var(--color-background);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
}

.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: clamp(20px, 3vw, 32px);
    gap: clamp(20px, 2.5vw, 32px);
}

.app-notification {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px clamp(16px, 3vw, 20px);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface-elevated);
    box-shadow: var(--shadow-sm);
    color: inherit;
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + clamp(16px, 3vw, 28px));
    left: 50%;
    width: min(640px, calc(100% - clamp(40px, 6vw, 64px)));
    max-width: calc(100% - clamp(32px, 6vw, 72px));
    transition: transform var(--transition), opacity var(--transition);
    transform: translate(-50%, -24px);
    opacity: 0;
    pointer-events: none;
    z-index: 10;
}

.app-notification.is-visible {
    transform: translate(-50%, 0);
    opacity: 1;
    pointer-events: auto;
}

.app-notification[hidden] {
    display: none;
}

.app-notification[data-tone="success"] {
    border-color: rgba(91, 233, 185, 0.4);
    background: rgba(91, 233, 185, 0.14);
    color: var(--color-positive);
}

.app-notification[data-tone="warning"] {
    border-color: rgba(255, 179, 71, 0.4);
    background: rgba(255, 179, 71, 0.14);
    color: var(--color-warning);
}

.app-notification[data-tone="error"] {
    border-color: rgba(255, 107, 107, 0.45);
    background: rgba(255, 107, 107, 0.16);
    color: var(--color-negative);
}

.app-notification__content {
    flex: 1 1 auto;
}

.notification-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border-radius: var(--radius-sm);
    border: none;
    background: rgba(255, 255, 255, 0.06);
    color: inherit;
    padding: 0.4rem;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

.notification-close:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.12);
}

.notification-close .material-symbols-rounded {
    font-size: 1.2rem;
}

[data-theme="light"] .notification-close {
    background: rgba(14, 23, 56, 0.08);
}

[data-theme="light"] .notification-close:hover {
    background: rgba(14, 23, 56, 0.16);
}

.app-header {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) auto;
    gap: clamp(16px, 3vw, 32px);
    align-items: center;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: clamp(18px, 2.5vw, 28px);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.brand {
    display: flex;
    align-items: center;
    gap: 18px;
    min-width: 0;
}

.brand-avatar {
    width: clamp(56px, 6vw, 72px);
    height: clamp(56px, 6vw, 72px);
    border-radius: 24px;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.22);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.brand-meta h1 {
    margin: 0;
    font-size: clamp(1.6rem, 4vw, 2.1rem);
    font-weight: 600;
}

.brand-meta p {
    margin: 8px 0 0;
    color: var(--color-muted);
    font-size: 0.95rem;
}

.connection {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    align-self: stretch;
}

.connection label {
    font-weight: 600;
    color: var(--color-muted);
    margin: 0;
    min-width: 64px;
}

.connection-fields {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1 1 320px;
    min-width: 240px;
}

.connection-fields input {
    flex: 1 1 200px;
    min-width: 0;
}

input,
button,
select {
    font-family: inherit;
    font-size: 0.98rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.02);
    color: inherit;
    padding: 0.65rem 0.9rem;
    transition: border var(--transition), transform var(--transition), background var(--transition);
}

input:focus,
select:focus,
button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

button {
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#connect {
    background: linear-gradient(135deg, var(--color-accent), rgba(123, 128, 255, 0.85));
    color: #050711;
    border: none;
    font-weight: 600;
    box-shadow: 0 14px 40px rgba(124, 99, 255, 0.35);
}

#disconnect {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

button:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    box-shadow: none;
}

.header-controls {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 14px;
    align-self: stretch;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.82rem;
    padding: 0.4rem 1rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-muted);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.status-indicator[data-state="online"] {
    background: rgba(91, 233, 185, 0.16);
    border-color: rgba(91, 233, 185, 0.42);
    color: var(--color-positive);
}

.status-indicator[data-state="connecting"] {
    background: rgba(124, 99, 255, 0.18);
    border-color: rgba(124, 99, 255, 0.45);
    color: var(--color-accent);
}

.status-indicator[data-state="error"] {
    background: rgba(255, 107, 107, 0.18);
    border-color: rgba(255, 107, 107, 0.42);
    color: var(--color-negative);
}

.ghost-button {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: inherit;
}

.ghost-button:hover:not(:disabled),
button:hover:not(:disabled) {
    transform: translateY(-1px);
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 16px clamp(18px, 3vw, 26px);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.55rem 1rem;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: inherit;
    font-weight: 500;
}

.filter-btn.active {
    background: rgba(124, 99, 255, 0.16);
    border-color: rgba(124, 99, 255, 0.45);
    color: var(--color-accent);
}

.toolbar-actions {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.bulk-label {
    font-size: 0.9rem;
    color: var(--color-muted);
}

#bulk-count {
    width: 80px;
}

.layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.35fr);
    gap: clamp(22px, 2vw, 32px);
    align-items: start;
}

.panel {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    padding: clamp(18px, 2vw, 24px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.panel-header h2 {
    margin: 0;
    font-size: 1.2rem;
}

.panel-header p {
    margin: 6px 0 0;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.panel-feed {
    min-height: clamp(460px, 65vh, 720px);
}

.message-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: clamp(18px, 2vw, 24px);
    overflow-y: auto;
    max-height: 65vh;
}

.message {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px clamp(12px, 2vw, 18px);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(124, 99, 255, 0.08));
    border-radius: var(--radius-md);
    padding: clamp(16px, 2vw, 20px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.message:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.message-main {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.message-meta time {
    font-size: 0.82rem;
    color: var(--color-muted);
    font-weight: 500;
}

.message-body {
    font-size: 0.95rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.92);
}

.message-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.link-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(0, 0, 0, 0.25);
    color: inherit;
    text-decoration: none;
    max-width: 100%;
}

.link-chip:hover {
    background: rgba(255, 255, 255, 0.16);
}

.link-chip span {
    opacity: 0.6;
    font-size: 0.8rem;
}

.link-chip strong {
    font-weight: 600;
    max-width: clamp(140px, 20vw, 220px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.message-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pill-button {
    background: rgba(255, 255, 255, 0.04);
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.4rem 0.7rem;
    font-size: 0.82rem;
    color: var(--color-muted);
}

.message.visited .message-body,
.message.visited .link-chip {
    opacity: 0.6;
}

.system-log {
    padding: 0 clamp(18px, 2vw, 24px) clamp(18px, 2vw, 28px);
    font-size: 0.85rem;
    color: var(--color-muted);
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: clamp(20px, 2vw, 28px);
}

.user-list {
    padding: clamp(16px, 2vw, 20px);
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 320px;
    overflow-y: auto;
}

.user-count {
    display: inline-block;
    margin-left: 10px;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--color-muted);
    font-weight: 600;
    vertical-align: middle;
}

.panel-controls {
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.panel-collapsed {
    --collapsed-height: 44px;
}

.panel-collapsed .panel-header > :not(.panel-controls) {
    display: none;
}

.panel-collapsed .panel-header {
    min-height: var(--collapsed-height);
    align-items: center;
}

.panel-collapsed .user-list {
    display: none !important;
}

.panel-collapsed .panel-controls #okundu-button {
    display: none;
}

.user-card {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.04);
}

.user-avatar {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 99, 255, 0.22);
    font-weight: 700;
}

.user-meta span {
    display: block;
}

.user-meta .name {
    font-weight: 600;
}

.user-meta .time {
    font-size: 0.82rem;
    color: var(--color-muted);
}

.user-card.new {
    animation: pulse 1.6s ease-in-out infinite;
    border-color: rgba(124, 99, 255, 0.45);
}

@keyframes pulse {
    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(124, 99, 255, 0.0);
    }
    50% {
        box-shadow: 0 0 0 6px rgba(124, 99, 255, 0.18);
    }
}

.rates-grid {
    padding: 0 clamp(18px, 2vw, 24px);
    display: grid;
    gap: 12px;
    font-size: 0.95rem;
}

.rates-grid div {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 12px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(0, 0, 0, 0.18);
}

.rates-grid dd {
    margin: 0;
    font-weight: 600;
}

.rates-grid dt {
    font-weight: 500;
    color: var(--color-muted);
}

.rates-updated {
    margin: 16px clamp(18px, 2vw, 24px) clamp(18px, 2vw, 26px);
    color: var(--color-muted);
    font-size: 0.85rem;
}

.settings-dialog::backdrop {
    background: rgba(4, 6, 16, 0.7);
    backdrop-filter: blur(12px);
}

.settings-dialog {
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 0;
    max-width: min(560px, 92vw);
    width: 100%;
    background: var(--color-surface);
    color: inherit;
    position: relative; /* popover anchor */
    overflow: visible;
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow: visible;
}

.dialog-header {
    padding: 22px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
    padding: 24px;
}

.settings-grid label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--color-muted);
}

/* Modern color controls */
.color-field {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
}

.swatch {
    border: 1px solid var(--color-border);
    background: var(--color-surface-elevated);
    border-radius: 10px;
    padding: 6px;
    width: 46px;
    height: 42px;
}

.swatch-chip {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 8px;
    background: var(--swatch, #000);
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.2);
}

.color-hex {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    width: 100%;
    min-width: 0;
}

.color-field .clear {
    height: 42px;
}

.native-color {
    position: absolute !important;
    opacity: 0 !important;
    pointer-events: none !important;
    width: 0; height: 0; padding: 0; border: 0;
}

/* Popover color picker */
.color-popover {
    position: absolute;
    inset: auto auto auto auto; /* positioned via JS */
    border: 1px solid var(--color-border);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 14px;
    z-index: 1000;
    min-width: 300px;
    max-width: calc(100% - 24px);
}

.picker {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
}

.sv-wrap { position: relative; width: 220px; height: 160px; }
.sv { width: 220px; height: 160px; border-radius: 10px; display: block; }
.sv-cursor { position: absolute; width: 12px; height: 12px; border: 2px solid #fff; border-radius: 50%; box-shadow: 0 0 0 1px rgba(0,0,0,0.35); transform: translate(-6px,-6px); pointer-events: none; }

.hue-wrap { position: relative; width: 16px; height: 160px; }
.hue { width: 16px; height: 160px; border-radius: 10px; display: block; }
.hue-cursor { position: absolute; left: -2px; width: 20px; height: 4px; background: #fff; border-radius: 2px; box-shadow: 0 0 0 1px rgba(0,0,0,0.35); transform: translateY(-2px); pointer-events: none; }

.picker-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; }
.picker-preview { display: inline-flex; align-items: center; gap: 10px; color: var(--color-muted); font-size: 0.9rem; }
.picker-preview .preview-chip { width: 26px; height: 18px; border-radius: 6px; background: #000; box-shadow: inset 0 0 0 1px rgba(0,0,0,0.35); }
.picker-actions { display: inline-flex; gap: 10px; }

.dialog-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.dialog-footer menu {
    display: flex;
    gap: 10px;
    padding: 0;
    margin: 0;
}

#reset-settings {
    color: var(--color-muted);
}

.message-list::-webkit-scrollbar,
.user-list::-webkit-scrollbar {
    width: 8px;
}

.message-list::-webkit-scrollbar-thumb,
.user-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 999px;
}

@media (max-width: 1200px) {
    .app-header {
        grid-template-columns: minmax(0, 1fr);
    }

    .header-controls {
        justify-content: flex-start;
    }

    .connection {
        align-items: stretch;
    }

    .connection label {
        width: 100%;
    }

    .connection-fields {
        flex-wrap: wrap;
        width: 100%;
    }
}

@media (max-width: 980px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .message-list {
        max-height: none;
    }

    .sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .sidebar .panel {
        flex: 1 1 280px;
    }
}

@media (max-width: 720px) {
    .app-shell {
        padding: 16px;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-actions {
        width: 100%;
        justify-content: space-between;
    }

    .panel-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .message {
        grid-template-columns: 1fr;
    }

    .message-actions {
        flex-direction: row;
    }
}