/* ============================================================
   Smart Memo — Premium Glassmorphism UI
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Pretendard:wght@400;500;600;700&display=swap");

:root {
    /* 라이트 모드 (Premium Glass Light) */
    --bg-start: #e0e7ff;
    --bg-end: #f8fafc;
    --bg-gradient: linear-gradient(
        135deg,
        var(--bg-start) 0%,
        var(--bg-end) 100%
    );

    --sidebar-bg: rgba(255, 255, 255, 0.7);
    --editor-bg: transparent;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.5);

    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-hover: rgba(255, 255, 255, 0.8);

    --primary-color: #4361ee;
    --primary-hover: #3a56d4;
    --danger-color: #f72585;
    --danger-hover: #d91c70;
    --ai-color: #7209b7;
    --ai-hover: #5c0796;

    --blue: #4361ee;
    --purple: #7209b7;
    --gold: #f8b400;

    --surface-hover: rgba(0, 0, 0, 0.04);
    --surface-active: rgba(0, 0, 0, 0.08);

    --memo-active-bg: rgba(67, 97, 238, 0.1);
    --memo-active-border: rgba(67, 97, 238, 0.3);

    --btn-bg: rgba(255, 255, 255, 0.7);
    --btn-ai-bg: rgba(114, 9, 183, 0.05);
    --btn-ai-border: rgba(114, 9, 183, 0.2);
    --btn-ai-hover-bg: rgba(114, 9, 183, 0.1);
    --btn-ai-hover-border: rgba(114, 9, 183, 0.3);

    --btn-danger-hover-bg: rgba(247, 37, 133, 0.1);
    --btn-mic-active-bg: rgba(247, 37, 133, 0.15);
    --btn-mic-active-border: rgba(247, 37, 133, 0.4);

    --modal-bg: rgba(255, 255, 255, 0.85);
    --input-bg: rgba(255, 255, 255, 0.5);
    --overlay-bg: rgba(15, 23, 42, 0.4);

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md:
        0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 30px -3px rgb(0 0 0 / 0.15);
    --shadow-glow: 0 0 20px rgba(67, 97, 238, 0.15);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-family:
        "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    /* 다크 모드 (Premium Glass Dark) */
    --bg-start: #0a0e27;
    --bg-end: #1a1f4e;
    --bg-gradient: linear-gradient(
        135deg,
        var(--bg-start) 0%,
        var(--bg-end) 100%
    );

    --sidebar-bg: rgba(10, 14, 39, 0.6);
    --editor-bg: transparent;

    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.65);
    --text-muted: rgba(255, 255, 255, 0.35);
    --border-color: rgba(255, 255, 255, 0.1);

    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-hover: rgba(255, 255, 255, 0.08);

    --primary-color: #6b82f5;
    --primary-hover: #4361ee;
    --danger-color: #f72585;
    --danger-hover: #d91c70;
    --ai-color: #c77dff;
    --ai-hover: #9d4edd;

    --surface-hover: rgba(255, 255, 255, 0.08);
    --surface-active: rgba(255, 255, 255, 0.12);

    --memo-active-bg: rgba(67, 97, 238, 0.15);
    --memo-active-border: rgba(67, 97, 238, 0.4);

    --btn-bg: rgba(255, 255, 255, 0.05);
    --btn-ai-bg: rgba(114, 9, 183, 0.15);
    --btn-ai-border: rgba(114, 9, 183, 0.3);
    --btn-ai-hover-bg: rgba(114, 9, 183, 0.25);
    --btn-ai-hover-border: rgba(114, 9, 183, 0.4);

    --btn-danger-hover-bg: rgba(247, 37, 133, 0.15);
    --btn-mic-active-bg: rgba(247, 37, 133, 0.2);
    --btn-mic-active-border: rgba(247, 37, 133, 0.5);

    --modal-bg: rgba(15, 23, 42, 0.85);
    --input-bg: rgba(255, 255, 255, 0.06);
    --overlay-bg: rgba(10, 14, 39, 0.75);

    --shadow-lg: 0 10px 30px -3px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(67, 97, 238, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-gradient);
    color: var(--text-primary);
    line-height: 1.6;
    height: 100vh;
    overflow: hidden;
    transition:
        background 0.4s ease,
        color 0.4s ease;
}

/* Animated background pattern */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(
            ellipse 80% 50% at 20% 10%,
            rgba(67, 97, 238, 0.12) 0%,
            transparent 60%
        ),
        radial-gradient(
            ellipse 60% 40% at 80% 80%,
            rgba(114, 9, 183, 0.1) 0%,
            transparent 55%
        );
    pointer-events: none;
    z-index: 0;
}

.hidden {
    display: none !important;
}
.mobile-only {
    display: none;
}

.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

/* ── Custom Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.28);
}
[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
}
[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.28);
}

/* ── Sidebar ── */
.sidebar {
    width: 320px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition:
        width 0.3s ease,
        transform 0.3s ease;
    flex-shrink: 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.sidebar.collapsed {
    width: 0;
    border-right: none;
    transform: translateX(-320px);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: var(--overlay-bg);
    backdrop-filter: blur(4px);
    z-index: 90;
    opacity: 0;
    transition: opacity 0.3s;
}

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

.sidebar-header {
    padding: 24px 20px 20px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

/* Premium Logo Styling */
.logo-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(67, 97, 238, 0.3));
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-name {
    font-size: 1.3rem;
    font-weight: 800;
    background: linear-gradient(
        90deg,
        var(--text-primary) 0%,
        var(--blue) 50%,
        var(--purple) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.logo-subtitle {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.sidebar-action {
    padding: 20px 20px 10px 20px;
}

/* Shimmering Action Button */
.analyze-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--blue) 0%, var(--purple) 100%);
    color: #fff;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition:
        transform var(--transition),
        box-shadow var(--transition);
    box-shadow: 0 4px 18px rgba(67, 97, 238, 0.45);
}

.analyze-btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.18),
        transparent
    );
    transform: skewX(-20deg);
    animation: shimmer 2.4s ease-in-out infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    60% {
        left: 150%;
    }
    100% {
        left: 150%;
    }
}

.analyze-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(67, 97, 238, 0.55);
}

.analyze-btn i {
    font-size: 1.25rem;
}

.memo-list-container {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.memo-list {
    list-style: none;
}

.memo-item {
    padding: 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    margin-bottom: 8px;
    transition: var(--transition);
    border: 1px solid transparent;
    background: transparent;
}

.memo-item:hover {
    background-color: var(--surface-hover);
}

.memo-item.active {
    background-color: var(--memo-active-bg);
    border-color: var(--memo-active-border);
}

.memo-item.active .memo-title {
    color: var(--primary-color);
}

.memo-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
}

.memo-preview {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.memo-date {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 6px;
    font-variant-numeric: tabular-nums;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.icon-text-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.icon-text-btn:hover {
    background-color: var(--surface-hover);
    color: var(--text-primary);
}

/* ── Editor Area ── */
.editor-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--editor-bg);
    width: calc(100vw - 320px);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    container-type: inline-size;
    container-name: editor;
}

@container editor (max-width: 900px) {
    .tool-btn span {
        display: none;
    }
    .tool-btn {
        padding: 9px;
        gap: 0;
    }
}

.editor-header {
    padding: 24px 36px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.header-top {
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition);
    flex-shrink: 0;
}

.icon-btn:hover {
    background: var(--glass-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.title-input {
    font-size: 2.2rem;
    font-weight: 700;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-primary);
    font-family: var(--font-family);
    width: 100%;
    flex: 1;
    min-width: 0;
    letter-spacing: -0.5px;
}
.title-input::placeholder {
    color: var(--text-muted);
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
}

.tool-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 9px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background-color: var(--btn-bg);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tool-btn:hover {
    background-color: var(--glass-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.tool-btn i {
    font-size: 1.15rem;
}

.tool-btn.icon-only {
    padding: 9px;
}

.textarea-wrapper {
    display: flex;
    flex-direction: column;
    flex: 1;
    width: 100%;
    min-width: 0;
}

.editor-content.fullscreen-md .textarea-wrapper {
    display: none;
}

.md-format-toolbar {
    padding: 8px 16px;
    border-bottom: 1px dashed var(--border-color);
    margin-bottom: 0px;
    flex-wrap: wrap;
    background: transparent;
}

.md-tool-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    background-color: transparent;
    color: var(--text-secondary);
    font-size: 1.15rem;
    cursor: pointer;
    transition: var(--transition);
}

.md-tool-btn:hover {
    background-color: var(--glass-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.tool-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.tool-btn:disabled:hover {
    background-color: var(--btn-bg);
    color: var(--text-secondary);
}

.tool-btn.primary {
    background: linear-gradient(
        135deg,
        var(--blue) 0%,
        var(--primary-hover) 100%
    );
    border: none;
    color: white;
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.tool-btn.primary:hover {
    box-shadow: 0 6px 16px rgba(67, 97, 238, 0.4);
    transform: translateY(-1px);
}

.tool-btn.primary.unsaved {
    background: linear-gradient(
        135deg,
        var(--gold) 0%,
        #e6a600 100%
    );
    box-shadow: 0 4px 12px rgba(248, 180, 0, 0.4);
}

.tool-btn.primary.unsaved:hover {
    box-shadow: 0 6px 16px rgba(248, 180, 0, 0.5);
}

.tool-btn.primary.unsaved i {
    animation: unsavedWobble 2s infinite ease-in-out;
    display: inline-block;
}

@keyframes unsavedWobble {
    0%, 100% { transform: rotate(0deg); }
    15% { transform: rotate(-10deg); }
    30% { transform: rotate(10deg); }
    45% { transform: rotate(-10deg); }
    60% { transform: rotate(0deg); }
}

.tool-btn.ai-btn {
    background-color: var(--btn-ai-bg);
    border-color: var(--btn-ai-border);
    color: var(--ai-color);
}

.tool-btn.ai-btn:hover {
    background-color: var(--btn-ai-hover-bg);
    border-color: var(--btn-ai-hover-border);
}

.tool-btn.danger {
    color: var(--danger-color);
    border-color: transparent;
    background: transparent;
}
.tool-btn.danger:hover {
    background-color: var(--btn-danger-hover-bg);
    color: var(--danger-hover);
    border-color: rgba(247, 37, 133, 0.2);
}

.tool-btn.active-mic {
    background-color: var(--btn-mic-active-bg);
    color: var(--danger-color);
    border-color: var(--btn-mic-active-border);
    animation: micPulse 1.4s ease-in-out infinite;
}

@keyframes micPulse {
    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(247, 37, 133, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(247, 37, 133, 0);
    }
}

.tool-btn.active-read {
    background-color: rgba(67, 97, 238, 0.15);
    color: var(--blue);
    border-color: rgba(67, 97, 238, 0.4);
    animation: readPulse 2s infinite;
}

@keyframes readPulse {
    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(67, 97, 238, 0.3);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(67, 97, 238, 0);
    }
}

.divider {
    width: 1px;
    height: 24px;
    background-color: var(--border-color);
    margin: 0 6px;
}

.editor-content {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: row;
    padding: 24px 36px;
    gap: 20px;
    min-height: 0;
    min-width: 0;
}

/* Animated border wrapper for textarea - Only in dark mode */
[data-theme="dark"] .editor-content::before {
    content: "";
    position: absolute;
    inset: 20px 32px;
    border-radius: var(--radius-md);
    background: linear-gradient(
        135deg,
        var(--blue),
        var(--purple),
        var(--blue)
    );
    background-size: 200% 200%;
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 0;
    animation: gradientShift 3s ease infinite;
    pointer-events: none;
}

[data-theme="dark"] .editor-content.focus-active::before {
    opacity: 1;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

#memo-content {
    flex: 1;
    width: 100%;
    position: relative;
    z-index: 1;
    resize: none;
    border: 1px solid transparent;
    outline: none;
    padding: 24px;
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-primary);
    font-family: var(--font-family);
    background: transparent;
    border-radius: var(--radius-sm);
    transition:
        background var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

/* Light mode focus style: Subtle border instead of animation */
.editor-content.focus-active #memo-content,
#memo-content:focus {
    background: transparent;
    border-color: rgba(67, 97, 238, 0.3);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.05);
}

[data-theme="dark"] #memo-content {
    background: rgba(255, 255, 255, 0.03);
    border-color: transparent;
    box-shadow: none;
}

[data-theme="dark"] .editor-content.focus-active #memo-content,
[data-theme="dark"] #memo-content:focus {
    background: rgba(10, 14, 39, 0.6);
    border-color: transparent;
    box-shadow: none;
}

/* Markdown Preview Area */
.markdown-preview-wrapper {
    flex: 1;
    position: relative;
    display: none;
    flex-direction: column;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--surface-hover);
    overflow: hidden;
}

.markdown-preview-wrapper.show {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

.markdown-preview {
    flex: 1;
    position: relative;
    z-index: 1;
    padding: 24px;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-primary);
    font-family: var(--font-family);
    overflow-y: auto;
    word-break: break-word;
}

.md-fullscreen-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 10;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.md-fullscreen-btn:hover {
    color: var(--blue);
    background: var(--surface-hover);
    border-color: var(--blue);
}

/* Fullscreen editor mode */
.editor-content.fullscreen-md textarea#memo-content {
    display: none;
}

.editor-content.fullscreen-md .markdown-preview-wrapper {
    flex: 1;
    width: 100%;
    border-radius: 0;
    border: none;
}
/* Basic Markdown Styling inside preview */
.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3,
.markdown-preview h4 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-weight: 700;
    color: var(--text-primary);
}
.markdown-preview h1 {
    font-size: 1.8rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3em;
}
.markdown-preview h2 {
    font-size: 1.5rem;
}
.markdown-preview p {
    margin-bottom: 1em;
}
.markdown-preview ul,
.markdown-preview ol {
    margin-left: 1.5em;
    margin-bottom: 1em;
}
.markdown-preview li {
    margin-bottom: 0.25em;
}
.markdown-preview code {
    background: rgba(114, 9, 183, 0.15);
    color: var(--ai-color);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family:
        ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
        "Liberation Mono", "Courier New", monospace;
    font-size: 0.85em;
}

.code-block-wrapper {
    position: relative;
    margin-bottom: 1.5em;
    border-radius: 12px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}
[data-theme="dark"] .code-block-wrapper {
    background: #0f172a;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: #f8fafc;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
[data-theme="dark"] .code-block-header {
    background: #1e293b;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code-lang {
    font-size: 0.75rem;
    color: #64748b;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
[data-theme="dark"] .code-lang {
    color: #94a3b8;
}

.code-copy-btn {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    color: #475569;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border-radius: 6px;
    transition: var(--transition);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}
.code-copy-btn:hover {
    background: #f1f5f9;
    color: var(--blue);
    border-color: rgba(0, 0, 0, 0.15);
}
[data-theme="dark"] .code-copy-btn {
    background: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #cbd5e1;
}
[data-theme="dark"] .code-copy-btn:hover {
    background: #334155;
    border-color: rgba(255, 255, 255, 0.2);
}

.markdown-preview pre {
    background: transparent;
    margin: 0;
    padding: 1.25rem;
    overflow-x: auto;
    border: none;
    display: block;
}

.markdown-preview pre.collapsed {
    max-height: 14em;
    overflow-y: hidden;
}

.code-expand-btn {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 44px;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    color: var(--blue);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: var(--transition);
    z-index: 10;
    backdrop-filter: blur(8px);
}
.code-expand-btn:hover {
    background: #ffffff;
    color: var(--primary-hover);
}
[data-theme="dark"] .code-expand-btn {
    background: rgba(15, 23, 42, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
[data-theme="dark"] .code-expand-btn:hover {
    background: #0f172a;
}
.code-expand-btn.expanded {
    position: relative;
}
.markdown-preview pre code {
    background: transparent;
    color: #334155;
    padding: 0;
    font-size: 0.9em;
    line-height: 1.6;
    border-radius: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    display: block;
    font-family:
        "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
[data-theme="dark"] .markdown-preview pre code {
    color: #e2e8f0;
}
.markdown-preview blockquote {
    border-left: 4px solid var(--blue);
    margin: 0 0 1em 0;
    padding: 0.5em 1em;
    color: var(--text-secondary);
    background: rgba(67, 97, 238, 0.05);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.markdown-preview a {
    color: var(--blue);
    text-decoration: none;
}
.markdown-preview a:hover {
    text-decoration: underline;
}

#memo-content::placeholder {
    color: var(--text-muted);
}
#voice-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(15, 23, 42, 0.85);
    color: white;
    padding: 10px 20px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-md);
    z-index: 5;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.recording-dot {
    width: 8px;
    height: 8px;
    background-color: var(--danger-color);
    border-radius: 50%;
    animation: blink 1s infinite;
}

.status-bar {
    padding: 12px 36px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background-color: var(--sidebar-bg);
    backdrop-filter: blur(20px);
}

/* ── Modals & Menus ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: var(--overlay-bg);
    backdrop-filter: blur(6px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
}

.modal-content {
    background-color: var(--modal-bg);
    border-radius: var(--radius-xl);
    width: 480px;
    max-width: 90%;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease-out;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(24px);
}

.modal-header {
    padding: 24px 28px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.close-btn {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--text-primary);
}

.context-menu {
    position: fixed;
    background-color: var(--modal-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 300;
    display: flex;
    flex-direction: column;
    min-width: 220px;
    overflow: hidden;
    animation: fadeIn 0.15s ease-out;
    backdrop-filter: blur(24px);
}

.context-menu-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
    font-family: var(--font-family);
    width: 100%;
}

.context-menu-item:last-child {
    border-bottom: none;
}
.context-menu-item:hover {
    background-color: var(--surface-hover);
}

.context-menu-item i {
    font-size: 1.3rem;
    color: var(--ai-color);
    margin-top: 2px;
}

.context-menu-item .opt-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.context-menu-item .opt-text strong {
    font-size: 0.95rem;
    font-weight: 600;
}

.context-menu-item .opt-text span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.modal-body {
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: var(--transition);
    appearance: none;
    background-color: var(--input-bg);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--blue);
    background-color: rgba(255, 255, 255, 0.1);
}

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

.select-wrapper {
    position: relative;
}
.select-wrapper select {
    width: 100%;
}
.select-wrapper i {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

.modal-footer {
    padding: 20px 28px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

.btn {
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.btn.primary {
    background: linear-gradient(135deg, var(--blue) 0%, var(--purple) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(67, 97, 238, 0.4);
}

.btn.primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.5);
}

/* ── Loading Overlay ── */
.loading-overlay {
    position: absolute;
    inset: 0;
    background-color: var(--overlay-bg);
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 50;
    gap: 20px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--blue);
    border-right-color: var(--purple);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-overlay p {
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

/* ── Animations ── */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}
@keyframes blink {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .editor-header {
        padding: 20px;
    }
    .editor-content {
        padding: 10px 20px;
    }
    .status-bar {
        padding: 10px 20px;
    }
    .editor-content::before {
        inset: 10px 16px;
    }
}

@media (max-width: 1070px) {
    .tool-btn span {
        display: none;
    }
}

@media (max-width: 768px) {
    .mobile-only {
        display: flex;
    }

    .sidebar {
        position: fixed;
        left: -320px;
        top: 0;
        bottom: 0;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-lg);
    }

    .sidebar.open {
        left: 0;
    }
    .sidebar-overlay {
        display: block;
        pointer-events: none;
    }
    .sidebar-overlay.show {
        pointer-events: auto;
    }
    .editor-area {
        width: 100vw;
    }

    .title-input {
        font-size: 1.8rem;
    }
    .editor-content::before {
        display: none; /* Disable animated border on mobile for performance */
    }

    .toolbar {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }
    .toolbar::-webkit-scrollbar {
        height: 0px;
    }
    .tool-btn {
        padding: 10px;
    }
}
/* Toggle Switch */
.toggle-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 5px;
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #d1d5db;
    transition: 0.3s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

input:checked + .slider {
    background-color: var(--blue);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

.slider.round {
    border-radius: 24px;
}

.slider.round:before {
    border-radius: 50%;
}

/* ── Top Right Options Dropdown ── */
.options-dropdown {
    position: relative;
    display: inline-block;
}

.options-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--modal-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 180px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(24px);
}

.options-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    text-align: left;
    transition: background 0.2s;
    width: 100%;
}

.dropdown-item:hover {
    background: var(--surface-hover);
}

.dropdown-item i {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.dropdown-item:hover i {
    color: var(--blue);
}

.options-menu .divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
    width: auto;
}

/* ── Markdown Preview Images ── */
.markdown-preview img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    display: block;
    margin: 1rem 0;
}

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

/* ── Image Viewer Modal ── */
#image-viewer-modal {
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 2000; /* Must be higher than general sidebar overlay and standard modals */
    backdrop-filter: blur(8px);
}

.image-viewer-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.image-viewer-content {
    flex: 1;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    cursor: grab;
    user-select: none;
}

.image-viewer-content:active {
    cursor: grabbing;
}

#viewer-img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    transform-origin: center center;
    transition: transform 0.15s ease-out;
    user-select: none;
    pointer-events: none;
}

#viewer-img.dragging {
    transition: none !important;
}

.viewer-close-btn {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 2010;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.viewer-close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    color: var(--danger-color);
    transform: rotate(90deg);
}

.image-viewer-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.65);
    padding: 8px 16px;
    border-radius: 30px;
    display: flex;
    gap: 12px;
    align-items: center;
    z-index: 2010;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.viewer-control-btn {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    transition: var(--transition);
}

.viewer-control-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--primary-color);
}