/* ==========================================================================
   SOMANOTES — PROGRESS NOTE ONE-SHOT GENERATOR (TERMINAL THEME)
   ==========================================================================

   Location:  /static/css/progress-oneshot.css
   Activator: .pn-page class on <body>

   Design DNA:
   Same Phosphor Theatre terminal aesthetic as Transfer Center. Two-panel
   layout: input (40%) + output (60%). Fully isolated with pn- prefix.

   Font Dependencies (loaded via Google Fonts in template):
     - JetBrains Mono 300..700       (labels, metadata, code, output)
     - Outfit 200..600               (headings, buttons)
     - DM Sans 300..500              (body text, input)

   ========================================================================== */


/* ==========================================================================
   S1  RESET & PAGE LAYOUT
   ========================================================================== */

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

.pn-page {
    /* — Palette — */
    --pn-bg-void:       #0a0a0f;
    --pn-bg-surface:    #12121a;
    --pn-bg-elevated:   #1a1a26;
    --pn-bg-header:     #0e0e16;
    --pn-bg-input:      #15151f;

    --pn-fg-primary:    #e0e0e8;
    --pn-fg-secondary:  #9a9ab0;
    --pn-fg-muted:      #6a6a80;
    --pn-fg-inverse:    #0a0a0f;

    --pn-border-subtle:  #1e1e2e;
    --pn-border-default: #2a2a3e;
    --pn-border-strong:  #3a3a50;

    --pn-accent:        #00e5ff;
    --pn-accent-dim:    rgba(0, 229, 255, 0.40);
    --pn-accent-subtle: rgba(0, 229, 255, 0.10);
    --pn-accent-ghost:  rgba(0, 229, 255, 0.05);

    --pn-magenta:       #ff6b9d;
    --pn-magenta-dim:   rgba(255, 107, 157, 0.35);

    --pn-warning:       #ffab40;
    --pn-success:       #4caf50;
    --pn-error:         #ff5252;

    --pn-glow-accent:         0 0 8px rgba(0, 229, 255, 0.25), 0 0 24px rgba(0, 229, 255, 0.08);
    --pn-glow-accent-intense: 0 0 12px rgba(0, 229, 255, 0.40), 0 0 36px rgba(0, 229, 255, 0.12);

    /* — Typography — */
    --pn-font-mono:    'JetBrains Mono', 'SF Mono', monospace;
    --pn-font-display: 'Outfit', 'Inter', sans-serif;
    --pn-font-body:    'DM Sans', 'Inter', sans-serif;

    --pn-text-xs:   0.6875rem;
    --pn-text-sm:   0.8125rem;
    --pn-text-base: 0.9375rem;
    --pn-text-lg:   1.125rem;

    --pn-tracking-wide:   0.05em;
    --pn-tracking-wider:  0.10em;
    --pn-tracking-widest: 0.20em;

    /* — Spacing — */
    --pn-space-xs:  4px;
    --pn-space-sm:  8px;
    --pn-space-md:  12px;
    --pn-space-lg:  16px;
    --pn-space-xl:  24px;
    --pn-space-2xl: 32px;

    /* — Motion — */
    --pn-duration: 300ms;
    --pn-easing: cubic-bezier(0.4, 0, 0.2, 1);

    /* — Grain texture — */
    --pn-grain: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.018'/%3E%3C/svg%3E");

    background: var(--pn-bg-void);
    color: var(--pn-fg-primary);
    font-family: var(--pn-font-body);
    margin: 0;
    min-height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr;
    grid-template-columns: 1fr;
    height: 100vh;
    position: relative;
}


/* ==========================================================================
   S2  FILM GRAIN OVERLAY
   ========================================================================== */

.pn-page::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: var(--pn-grain);
    background-size: 512px 512px;
    pointer-events: none;
    z-index: 1;
}


/* ==========================================================================
   S3  HEADER
   ========================================================================== */

.pn-header {
    grid-column: 1 / -1;
    background: var(--pn-bg-header);
    border-bottom: 1px solid var(--pn-border-default);
    padding: var(--pn-space-md) var(--pn-space-xl);
    display: flex;
    align-items: center;
    gap: var(--pn-space-xl);
    position: relative;
    z-index: 10;
    min-height: 52px;
}

/* Accent line under header */
.pn-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 15%;
    right: 15%;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--pn-accent-dim),
        transparent
    );
    pointer-events: none;
}

/* Brand block */
.pn-header-brand {
    display: flex;
    align-items: center;
    gap: var(--pn-space-sm);
    flex-shrink: 0;
}

.pn-logo-mark {
    font-size: 1.25rem;
    color: var(--pn-accent);
    text-shadow: var(--pn-glow-accent);
}

.pn-logo-link {
    font-family: var(--pn-font-display);
    font-size: var(--pn-text-lg);
    font-weight: 300;
    letter-spacing: 0.04em;
    color: var(--pn-fg-primary);
    text-decoration: none;
    transition: text-shadow var(--pn-duration) var(--pn-easing);
}

.pn-logo-link:hover {
    text-shadow: var(--pn-glow-accent);
}

.pn-logo-accent {
    color: var(--pn-accent);
    font-weight: 500;
}

/* Nav links */
.pn-nav {
    display: flex;
    align-items: center;
    gap: var(--pn-space-xl);
    margin-left: var(--pn-space-xl);
}

.pn-nav-link {
    font-family: var(--pn-font-display);
    font-size: var(--pn-text-sm);
    font-weight: 400;
    letter-spacing: var(--pn-tracking-wider);
    text-transform: uppercase;
    text-decoration: none;
    color: var(--pn-fg-muted);
    padding: var(--pn-space-sm) 0;
    border-bottom: 2px solid transparent;
    transition: color var(--pn-duration) var(--pn-easing),
                border-color var(--pn-duration) var(--pn-easing),
                text-shadow var(--pn-duration) var(--pn-easing);
}

.pn-nav-link:hover {
    color: var(--pn-fg-secondary);
    border-bottom-color: var(--pn-border-default);
}

.pn-nav-link.active {
    color: var(--pn-fg-primary);
    border-bottom: 2px solid var(--pn-accent);
    text-shadow: var(--pn-glow-accent);
}

.pn-nav-prefix {
    color: var(--pn-accent);
    font-family: var(--pn-font-mono);
    font-weight: 700;
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.30);
    margin-right: 2px;
}


/* ==========================================================================
   S4  BODY — TWO-PANEL SPLIT
   ========================================================================== */

.pn-body {
    display: flex;
    overflow: hidden;
    height: 100%;
}

.pn-input-panel {
    flex: 0 0 40%;
    max-width: 40%;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--pn-border-default);
    background: var(--pn-bg-void);
    overflow-y: auto;
    padding: var(--pn-space-xl);
}

.pn-output-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--pn-bg-surface);
    overflow: hidden;
}


/* ==========================================================================
   S5  INPUT PANEL
   ========================================================================== */

.pn-section-title {
    font-family: var(--pn-font-display);
    font-size: var(--pn-text-sm);
    font-weight: 300;
    letter-spacing: 0.20em;
    text-transform: uppercase;
    color: var(--pn-accent);
    padding: 0 0 var(--pn-space-sm);
    display: flex;
    align-items: center;
    gap: var(--pn-space-sm);
    margin: 0 0 var(--pn-space-lg);
}

.pn-section-title::before {
    content: '>';
    font-family: var(--pn-font-mono);
    font-weight: 700;
    font-size: var(--pn-text-base);
    color: var(--pn-accent);
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.30);
    flex-shrink: 0;
}

.pn-section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--pn-accent-dim), transparent 80%);
    margin-left: var(--pn-space-md);
}

/* Field label */
.pn-field-label {
    font-family: var(--pn-font-display);
    font-size: var(--pn-text-xs);
    font-weight: 300;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--pn-accent);
    opacity: 0.6;
    margin-bottom: var(--pn-space-xs);
    display: block;
}

.pn-field-label::before {
    content: '$ ';
    font-family: var(--pn-font-mono);
    color: var(--pn-accent-dim);
}

/* Field group */
.pn-field-group {
    margin-bottom: var(--pn-space-lg);
}

/* Date input */
.pn-date-input {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-sm);
    color: var(--pn-fg-primary);
    background: var(--pn-bg-input);
    border: none;
    border-bottom: 1px solid var(--pn-border-default);
    padding: var(--pn-space-sm) var(--pn-space-md);
    width: 160px;
    outline: none;
    color-scheme: dark;
    transition: border-color var(--pn-duration) var(--pn-easing),
                box-shadow var(--pn-duration) var(--pn-easing);
}

.pn-date-input:focus {
    border-bottom-color: var(--pn-accent);
    box-shadow: 0 1px 0 0 var(--pn-accent);
}

/* Textarea */
.pn-textarea {
    font-family: var(--pn-font-body);
    font-size: var(--pn-text-base);
    line-height: 1.6;
    color: var(--pn-fg-primary);
    background: var(--pn-bg-input);
    border: 1px solid var(--pn-border-default);
    padding: var(--pn-space-md);
    width: 100%;
    min-height: 200px;
    max-height: 60vh;
    resize: vertical;
    outline: none;
    box-sizing: border-box;
    transition: border-color var(--pn-duration) var(--pn-easing),
                box-shadow var(--pn-duration) var(--pn-easing);
}

.pn-textarea::placeholder {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-sm);
    color: var(--pn-fg-muted);
    opacity: 0.5;
    line-height: 1.8;
}

.pn-textarea:focus {
    border-color: var(--pn-accent);
    box-shadow: 0 0 0 1px var(--pn-accent-dim);
}

/* Character count */
.pn-char-count {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    color: var(--pn-fg-muted);
    letter-spacing: var(--pn-tracking-wide);
    text-align: right;
    margin-top: var(--pn-space-xs);
}

.pn-char-count.pn-char-warning {
    color: var(--pn-warning);
}

/* Keyboard hint */
.pn-keyboard-hint {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    color: var(--pn-fg-muted);
    letter-spacing: var(--pn-tracking-wide);
    margin-top: var(--pn-space-sm);
    opacity: 0.5;
}

.pn-keyboard-hint kbd {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    color: var(--pn-fg-secondary);
    background: var(--pn-bg-elevated);
    border: 1px solid var(--pn-border-default);
    padding: 1px 5px;
    margin: 0 1px;
}


/* ==========================================================================
   S6  GENERATE BUTTON
   ========================================================================== */

.pn-btn-generate {
    width: 100%;
    background: linear-gradient(135deg, var(--pn-accent), #00bcd4);
    border: none;
    color: var(--pn-fg-inverse);
    font-family: var(--pn-font-display);
    font-size: var(--pn-text-sm);
    font-weight: 600;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    padding: var(--pn-space-lg) var(--pn-space-xl);
    min-height: 48px;
    cursor: pointer;
    transition: all var(--pn-duration) var(--pn-easing);
    margin-top: var(--pn-space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--pn-space-sm);
}

.pn-btn-generate:hover {
    box-shadow: var(--pn-glow-accent-intense);
    transform: translateY(-1px);
}

.pn-btn-generate:active {
    transform: translateY(0);
}

.pn-btn-generate:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Spinner inside button */
.pn-spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(10, 10, 15, 0.3);
    border-top-color: var(--pn-fg-inverse);
    border-radius: 50%;
    animation: pn-spin 0.8s linear infinite;
}

.pn-btn-generate.pn-generating .pn-spinner {
    display: inline-block;
}

.pn-btn-generate.pn-generating .pn-btn-label {
    display: none;
}

@keyframes pn-spin {
    to { transform: rotate(360deg); }
}


/* ==========================================================================
   S7  OUTPUT PANEL
   ========================================================================== */

/* Output header bar */
.pn-output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--pn-space-md) var(--pn-space-xl);
    border-bottom: 1px solid var(--pn-border-subtle);
    min-height: 44px;
    flex-shrink: 0;
}

.pn-output-title {
    font-family: var(--pn-font-display);
    font-size: var(--pn-text-sm);
    font-weight: 300;
    letter-spacing: var(--pn-tracking-widest);
    text-transform: uppercase;
    color: var(--pn-fg-muted);
    margin: 0;
}

.pn-output-actions {
    display: flex;
    align-items: center;
    gap: var(--pn-space-md);
}

/* Status indicator (pulsing dot during generation) */
.pn-status-indicator {
    display: none;
    align-items: center;
    gap: var(--pn-space-sm);
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    color: var(--pn-accent);
    letter-spacing: var(--pn-tracking-wide);
}

.pn-status-indicator.active {
    display: flex;
}

.pn-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--pn-accent);
    animation: pn-pulse 1.5s ease-in-out infinite;
}

@keyframes pn-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 4px var(--pn-accent-dim); }
    50% { opacity: 0.4; box-shadow: none; }
}

/* Word count */
.pn-word-count {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    color: var(--pn-fg-muted);
    letter-spacing: var(--pn-tracking-wide);
}

/* Copy button */
.pn-btn-copy {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    font-weight: 500;
    letter-spacing: var(--pn-tracking-wider);
    text-transform: uppercase;
    color: var(--pn-fg-secondary);
    background: transparent;
    border: 1px solid var(--pn-border-default);
    padding: var(--pn-space-xs) var(--pn-space-lg);
    cursor: pointer;
    transition: all var(--pn-duration) var(--pn-easing);
    white-space: nowrap;
}

.pn-btn-copy:hover {
    border-color: var(--pn-accent-dim);
    color: var(--pn-accent);
    background: var(--pn-accent-ghost);
}

.pn-btn-copy.pn-copied {
    border-color: var(--pn-success);
    color: var(--pn-success);
}

.pn-btn-copy:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Output body / scrollable area */
.pn-output-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--pn-space-xl);
    position: relative;
}

/* Empty state */
.pn-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    gap: var(--pn-space-lg);
    text-align: center;
}

.pn-empty-icon {
    font-size: 2.5rem;
    color: var(--pn-fg-muted);
    opacity: 0.3;
}

.pn-empty-text {
    font-family: var(--pn-font-display);
    font-size: var(--pn-text-lg);
    font-weight: 300;
    letter-spacing: var(--pn-tracking-wide);
    color: var(--pn-fg-muted);
    margin: 0;
}

.pn-empty-subtext {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    color: var(--pn-fg-muted);
    opacity: 0.5;
    letter-spacing: var(--pn-tracking-wide);
    margin: 0;
}

/* Output text area */
.pn-output {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-sm);
    line-height: 1.7;
    color: var(--pn-fg-primary);
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
    /* Ensure easy select-all */
    user-select: text;
    -webkit-user-select: text;
}

/* Blinking cursor at end of streaming text */
.pn-output.pn-streaming::after {
    content: '\2588';
    color: var(--pn-accent);
    animation: pn-blink 0.8s step-end infinite;
}

@keyframes pn-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}


/* ==========================================================================
   S8  LINT RESULTS
   ========================================================================== */

.pn-lint-section {
    margin-top: var(--pn-space-xl);
    padding-top: var(--pn-space-lg);
    border-top: 1px solid var(--pn-border-subtle);
}

.pn-lint-summary {
    display: flex;
    align-items: center;
    gap: var(--pn-space-md);
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-sm);
    letter-spacing: var(--pn-tracking-wide);
}

.pn-lint-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--pn-space-xs);
    padding: 2px 8px;
    font-size: var(--pn-text-xs);
    font-weight: 600;
    letter-spacing: var(--pn-tracking-wider);
    text-transform: uppercase;
    border: 1px solid currentColor;
}

.pn-lint-badge.pn-lint-pass {
    color: var(--pn-success);
    border-color: rgba(76, 175, 80, 0.4);
}

.pn-lint-badge.pn-lint-errors {
    color: var(--pn-error);
    border-color: rgba(255, 82, 82, 0.4);
}

.pn-lint-badge.pn-lint-warnings {
    color: var(--pn-warning);
    border-color: rgba(255, 171, 64, 0.4);
}

/* Expandable lint details */
.pn-lint-details {
    margin-top: var(--pn-space-md);
}

.pn-lint-toggle {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    color: var(--pn-fg-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    letter-spacing: var(--pn-tracking-wide);
    padding: var(--pn-space-xs) 0;
    transition: color var(--pn-duration) var(--pn-easing);
}

.pn-lint-toggle:hover {
    color: var(--pn-fg-secondary);
}

.pn-lint-list {
    list-style: none;
    margin: var(--pn-space-sm) 0 0;
    padding: 0;
    display: none;
}

.pn-lint-list.pn-expanded {
    display: block;
    max-height: 200px;
    overflow-y: auto;
}

.pn-lint-item {
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-xs);
    line-height: 1.6;
    padding: var(--pn-space-xs) 0;
    border-bottom: 1px solid var(--pn-border-subtle);
    display: flex;
    align-items: baseline;
    gap: var(--pn-space-sm);
}

.pn-lint-item:last-child {
    border-bottom: none;
}

.pn-lint-item-type {
    flex-shrink: 0;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.6rem;
    letter-spacing: var(--pn-tracking-wider);
}

.pn-lint-item-type.pn-lint-error {
    color: var(--pn-error);
}

.pn-lint-item-type.pn-lint-warn {
    color: var(--pn-warning);
}

.pn-lint-item-msg {
    color: var(--pn-fg-secondary);
}


/* ==========================================================================
   S9  ERROR STATE
   ========================================================================== */

.pn-error-box {
    background: rgba(255, 82, 82, 0.06);
    border: 1px solid rgba(255, 82, 82, 0.25);
    border-left: 3px solid var(--pn-error);
    padding: var(--pn-space-lg);
    margin-top: var(--pn-space-lg);
    font-family: var(--pn-font-mono);
    font-size: var(--pn-text-sm);
    color: var(--pn-error);
    line-height: 1.6;
}

.pn-error-box::before {
    content: '// ERROR: ';
    font-weight: 600;
    opacity: 0.7;
}


/* ==========================================================================
   S10  SCROLLBARS
   ========================================================================== */

.pn-input-panel::-webkit-scrollbar,
.pn-output-body::-webkit-scrollbar {
    width: 6px;
}

.pn-input-panel::-webkit-scrollbar-track,
.pn-output-body::-webkit-scrollbar-track {
    background: var(--pn-bg-void);
}

.pn-input-panel::-webkit-scrollbar-thumb,
.pn-output-body::-webkit-scrollbar-thumb {
    background: var(--pn-border-default);
    border-radius: 3px;
}

.pn-input-panel::-webkit-scrollbar-thumb:hover,
.pn-output-body::-webkit-scrollbar-thumb:hover {
    background: var(--pn-border-strong);
}

/* Firefox scrollbar */
.pn-input-panel,
.pn-output-body {
    scrollbar-width: thin;
    scrollbar-color: var(--pn-border-default) var(--pn-bg-void);
}


/* ==========================================================================
   S11  FOCUS STATES
   ========================================================================== */

.pn-page *:focus-visible {
    outline: 2px solid var(--pn-accent);
    outline-offset: 2px;
}

.pn-textarea:focus-visible,
.pn-date-input:focus-visible {
    outline: none;
}


/* ==========================================================================
   S12  REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .pn-status-dot,
    .pn-output.pn-streaming::after {
        animation: none;
    }

    .pn-btn-generate:hover {
        transform: none;
    }

    .pn-spinner {
        animation-duration: 2s;
    }

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
    }
}
