/* interType — 18 interType AI assistant v2 */

:root {
    --bg: #0f0518;
    --card: #1a0a2e;
    --text: #e0d5f0;
    --muted: rgba(224, 213, 240, 0.5);
    --border: rgba(255, 140, 66, 0.2);
    --accent: #ff8c42;
    --accent2: #ff3c7f;
    --shadow: rgba(26, 10, 46, 0.6);
}

[data-theme="light"] {
    --bg: #faf5f0;
    --card: #ffffff;
    --text: #2a1a3e;
    --muted: rgba(42, 26, 62, 0.5);
    --border: rgba(255, 140, 66, 0.25);
    --accent: #d4652e;
    --accent2: #c42e6a;
    --shadow: rgba(255, 140, 66, 0.1);
}

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

body {
    font-family:
        system-ui,
        -apple-system,
        "Segoe UI",
        Roboto,
        sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition:
        background 0.3s,
        color 0.3s;
}

/* ===================================================================================
 * HEADER
 * =================================================================================== */

.it-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px var(--shadow);
    transition: background 0.3s;
}

.it-moon {
    font-size: 1.3rem;
    cursor: pointer;
    transition: transform 0.2s;
}

.it-moon:hover {
    transform: scale(1.15);
}

.it-ham {
    font-size: 1.2rem;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    transition: background 0.2s;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.it-ham:hover {
    background: rgba(255, 140, 66, 0.15);
}

.it-title {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.5px;
}

.it-history,
.it-settings,
.it-help,
.it-autoread {
    font-size: 0.8rem;
    color: var(--muted);
    cursor: pointer;
    transition: color 0.2s;
    white-space: nowrap;
    padding: 4px 8px;
    border-radius: 6px;
}

.it-history:hover,
.it-settings:hover,
.it-help:hover,
.it-autoread:hover {
    color: var(--accent);
    background: rgba(255, 140, 66, 0.08);
}

/* ===================================================================================
 * SIDEBAR PANEL
 * =================================================================================== */

.it-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 200;
}

.it-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.it-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: var(--card);
    border-right: 1px solid var(--border);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 210;
    display: flex;
    flex-direction: column;
    padding: 16px;
    gap: 8px;
}

.it-sidebar.active {
    transform: translateX(0);
}

.it-sidebar-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
}

.it-sidebar-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.it-sidebar-title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text);
}

.it-sidebar-item {
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition:
        background 0.2s,
        color 0.2s;
    color: var(--muted);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.it-sidebar-item:hover {
    background: rgba(255, 140, 66, 0.1);
    color: var(--accent);
}

.it-sidebar-item.active {
    background: rgba(255, 140, 66, 0.15);
    color: var(--accent);
    font-weight: 600;
}

/* ===================================================================================
 * MAIN AREA
 * =================================================================================== */

.it-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    border-radius: 40px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #fff;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    border: none;
    box-shadow: 0 4px 16px rgba(255, 60, 127, 0.3);
    transition:
        transform 0.2s,
        box-shadow 0.2s,
        filter 0.2s;
    margin: 4px 16px;
}

.it-back:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 6px 24px rgba(255, 60, 127, 0.45);
    filter: brightness(1.1);
    color: #fff;
}

.it-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px;
    gap: 16px;
    max-width: 720px;
    width: 100%;
    margin: 0 auto;
}

.it-number {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 1px;
    text-align: center;
}

.it-avatars {
    display: flex;
    gap: 20px;
    font-size: 2.5rem;
}

.it-greeting {
    text-align: center;
    color: var(--muted);
    font-size: 0.95rem;
    padding: 8px 0 16px;
    line-height: 1.7;
}

/* ===================================================================================
 * CHAT
 * =================================================================================== */

.it-chat {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 50vh;
    overflow-y: auto;
    padding-right: 4px;
}

.it-chat::-webkit-scrollbar {
    width: 4px;
}

.it-chat::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

.it-message {
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 85%;
    word-break: break-word;
    animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.it-user {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #fff;
}

.it-bot {
    align-self: flex-start;
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--text);
}

.it-typing {
    align-self: flex-start;
    padding: 6px 12px;
    color: var(--muted);
    font-size: 0.8rem;
    font-style: italic;
}

/* ===================================================================================
 * INPUT
 * =================================================================================== */

.it-input-wrap {
    max-width: 720px;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px 24px;
    margin: 0 auto;
}

.it-input {
    flex: 1;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 16px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition:
        border-color 0.2s,
        box-shadow 0.2s;
}

.it-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 140, 66, 0.15);
}

.it-input::placeholder {
    color: var(--muted);
}

.it-btn {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--accent);
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.2s;
}

.it-btn:hover {
    background: rgba(255, 140, 66, 0.12);
    border-color: var(--accent);
}

/* ===================================================================================
 * MODALS
 * =================================================================================== */

.it-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.it-modal.active {
    opacity: 1;
    pointer-events: all;
}

.it-modal-bg {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.it-modal-box {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    max-width: 420px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px var(--shadow);
    transform: scale(0.95);
    transition: transform 0.3s;
}

.it-modal.active .it-modal-box {
    transform: scale(1);
}

.it-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.it-modal-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
}

.it-modal-close {
    font-size: 1.4rem;
    color: var(--muted);
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}

.it-modal-close:hover {
    color: var(--accent);
}

.it-modal-body {
    color: var(--text);
    font-size: 0.9rem;
    line-height: 1.7;
}

.it-modal-body p {
    margin-bottom: 12px;
}

.it-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.it-toggle-label {
    font-size: 0.9rem;
    color: var(--text);
}

.it-toggle {
    width: 44px;
    height: 24px;
    background: var(--border);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: background 0.3s;
}

.it-toggle.on {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
}

.it-toggle::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.3s;
}

.it-toggle.on::after {
    transform: translateX(20px);
}

/* ===================================================================================
 * HISTORY LIST
 * =================================================================================== */

.it-history-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.it-history-item {
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 140, 66, 0.05);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.85rem;
    color: var(--text);
}

.it-history-item:hover {
    background: rgba(255, 140, 66, 0.12);
    border-color: var(--accent);
}

.it-history-empty {
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
    padding: 20px 0;
}

/* ===================================================================================
 * RESPONSIVE
 * =================================================================================== */

@media (max-width: 640px) {
    .it-header {
        gap: 8px;
        padding: 8px 12px;
    }

    .it-history,
    .it-settings,
    .it-help {
        display: none;
    }

    .it-title {
        font-size: 0.8rem;
    }

    .it-sidebar {
        width: 260px;
    }

    .it-main {
        padding: 16px;
    }

    .it-number {
        font-size: 1.4rem;
    }

    .it-avatars {
        font-size: 2rem;
    }

    .it-message {
        max-width: 90%;
        font-size: 0.85rem;
    }

    .it-modal-box {
        padding: 18px;
    }
}