/* =============================================================
   JSON Formatter Tool – style.css
   Version: 1.0.0
   ============================================================= */

/* ── Custom Properties ──────────────────────────────────────── */
.jft-wrapper {
    --jft-primary:      #4F46E5;
    --jft-primary-dark: #4338CA;
    --jft-secondary:    #6366F1;
    --jft-accent:       #7C3AED;
    --jft-success:      #059669;
    --jft-success-dark: #047857;
    --jft-warning:      #D97706;
    --jft-warning-dark: #B45309;
    --jft-danger:       #DC2626;
    --jft-danger-dark:  #B91C1C;
    --jft-download:     #0284C7;
    --jft-download-dark:#0369A1;

    --jft-bg:           #F9FAFB;
    --jft-card-bg:      #FFFFFF;
    --jft-border:       #E5E7EB;
    --jft-border-focus: #A5B4FC;
    --jft-text:         #111827;
    --jft-text-muted:   #6B7280;
    --jft-text-light:   #9CA3AF;
    --jft-output-bg:    #F8F9FF;
    --jft-line-bg:      #F1F3F9;
    --jft-line-text:    #9CA3AF;

    --jft-shadow-sm:    0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
    --jft-shadow:       0 4px 16px rgba(79,70,229,.10), 0 1px 4px rgba(0,0,0,.06);
    --jft-shadow-lg:    0 12px 40px rgba(79,70,229,.13), 0 2px 8px rgba(0,0,0,.07);
    --jft-radius:       14px;
    --jft-radius-sm:    8px;
    --jft-font-mono:    'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New', monospace;
    --jft-transition:   0.2s cubic-bezier(.4,0,.2,1);

    /* Syntax colours */
    --jft-syn-key:      #4F46E5;
    --jft-syn-str:      #059669;
    --jft-syn-num:      #D97706;
    --jft-syn-bool:     #7C3AED;
    --jft-syn-null:     #DC2626;
    --jft-syn-bracket:  #6B7280;
}

/* ── Dark Mode ──────────────────────────────────────────────── */
.jft-wrapper.jft-dark {
    --jft-bg:           #0F172A;
    --jft-card-bg:      #1E293B;
    --jft-border:       #334155;
    --jft-border-focus: #6366F1;
    --jft-text:         #F1F5F9;
    --jft-text-muted:   #94A3B8;
    --jft-text-light:   #64748B;
    --jft-output-bg:    #162032;
    --jft-line-bg:      #1A2840;
    --jft-line-text:    #475569;

    --jft-shadow-sm:    0 1px 3px rgba(0,0,0,.3);
    --jft-shadow:       0 4px 16px rgba(0,0,0,.4);
    --jft-shadow-lg:    0 12px 40px rgba(0,0,0,.5);

    --jft-syn-key:      #818CF8;
    --jft-syn-str:      #34D399;
    --jft-syn-num:      #FBD38D;
    --jft-syn-bool:     #C084FC;
    --jft-syn-null:     #F87171;
    --jft-syn-bracket:  #94A3B8;
}

/* ── Reset & Base ───────────────────────────────────────────── */
.jft-wrapper *,
.jft-wrapper *::before,
.jft-wrapper *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.jft-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--jft-text);
    background: var(--jft-bg);
    padding: 28px 16px 40px;
    min-height: 200px;
    transition: background var(--jft-transition), color var(--jft-transition);
}

/* ── SEO heading (visually hidden but crawlable) ─────────────── */
.jft-seo-heading {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* ── Header ─────────────────────────────────────────────────── */
.jft-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.jft-header-icon {
    flex-shrink: 0;
    filter: drop-shadow(0 4px 10px rgba(79,70,229,.35));
    transition: transform var(--jft-transition);
}
.jft-header-icon:hover { transform: rotate(-8deg) scale(1.05); }

.jft-header-text { flex: 1; }

.jft-title {
    font-size: clamp(1.25rem, 3vw, 1.65rem);
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--jft-text);
    line-height: 1.2;
    background: linear-gradient(135deg, var(--jft-primary) 0%, var(--jft-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.jft-subtitle {
    font-size: .875rem;
    color: var(--jft-text-muted);
    margin-top: 2px;
}

/* Dark mode toggle */
.jft-dark-toggle {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1.5px solid var(--jft-border);
    background: var(--jft-card-bg);
    color: var(--jft-text-muted);
    cursor: pointer;
    transition: all var(--jft-transition);
    box-shadow: var(--jft-shadow-sm);
}
.jft-dark-toggle:hover {
    border-color: var(--jft-primary);
    color: var(--jft-primary);
    transform: scale(1.1);
}
.jft-dark-toggle .jft-icon-moon { display: none; }
.jft-dark .jft-dark-toggle .jft-icon-sun  { display: none; }
.jft-dark .jft-dark-toggle .jft-icon-moon { display: block; }

/* ── Card ───────────────────────────────────────────────────── */
.jft-card {
    background: var(--jft-card-bg);
    border-radius: var(--jft-radius);
    box-shadow: var(--jft-shadow-lg);
    border: 1px solid var(--jft-border);
    padding: 28px;
    max-width: 900px;
    margin: 0 auto;
    transition: background var(--jft-transition), border-color var(--jft-transition);
}

/* ── Section ────────────────────────────────────────────────── */
.jft-section { margin-bottom: 4px; }

.jft-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.jft-section-label {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--jft-text-muted);
}
.jft-section-label svg { opacity: .7; }

.jft-char-count,
.jft-output-meta {
    font-size: .78rem;
    color: var(--jft-text-light);
    font-variant-numeric: tabular-nums;
}

/* ── Textarea ───────────────────────────────────────────────── */
.jft-textarea-wrapper {
    position: relative;
    border-radius: var(--jft-radius-sm);
    overflow: hidden;
}

.jft-textarea {
    width: 100%;
    min-height: 200px;
    padding: 16px;
    border: 1.5px solid var(--jft-border);
    border-radius: var(--jft-radius-sm);
    background: var(--jft-card-bg);
    color: var(--jft-text);
    font-family: var(--jft-font-mono);
    font-size: .85rem;
    line-height: 1.7;
    resize: vertical;
    outline: none;
    transition: border-color var(--jft-transition), box-shadow var(--jft-transition), background var(--jft-transition);
    tab-size: 4;
}
.jft-textarea::placeholder { color: var(--jft-text-light); font-family: inherit; }
.jft-textarea:focus {
    border-color: var(--jft-primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.15);
}

/* ── Buttons ────────────────────────────────────────────────── */
.jft-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 20px 0;
    border-top: 1px solid var(--jft-border);
    border-bottom: 1px solid var(--jft-border);
    margin: 20px 0;
}

.jft-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 18px;
    border: none;
    border-radius: var(--jft-radius-sm);
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--jft-transition);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    letter-spacing: .01em;
}

.jft-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0);
    transition: background var(--jft-transition);
}
.jft-btn:hover::after   { background: rgba(255,255,255,.12); }
.jft-btn:active::after  { background: rgba(0,0,0,.08); }

.jft-btn:hover   { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.18); }
.jft-btn:active  { transform: translateY(0); box-shadow: none; }
.jft-btn:focus-visible { outline: 2px solid var(--jft-border-focus); outline-offset: 2px; }

.jft-btn--primary  { background: linear-gradient(135deg, var(--jft-primary)  0%, var(--jft-secondary) 100%); color: #fff; }
.jft-btn--success  { background: linear-gradient(135deg, var(--jft-success)  0%, #10B981 100%); color: #fff; }
.jft-btn--warning  { background: linear-gradient(135deg, var(--jft-warning)  0%, #F59E0B 100%); color: #fff; }
.jft-btn--secondary{ background: linear-gradient(135deg, #64748B 0%, #475569 100%); color: #fff; }
.jft-btn--danger   { background: linear-gradient(135deg, var(--jft-danger)   0%, #EF4444 100%); color: #fff; }
.jft-btn--download { background: linear-gradient(135deg, var(--jft-download) 0%, #0EA5E9 100%); color: #fff; }

.jft-btn svg { flex-shrink: 0; }

/* ── Status Bar ─────────────────────────────────────────────── */
.jft-status {
    min-height: 0;
    max-height: 0;
    overflow: hidden;
    border-radius: var(--jft-radius-sm);
    font-size: .84rem;
    font-weight: 500;
    transition: max-height .3s ease, padding .3s ease, margin .3s ease, opacity .3s ease;
    opacity: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0;
}
.jft-status.jft-status--show {
    max-height: 60px;
    padding: 10px 14px;
    margin-bottom: 16px;
    opacity: 1;
}
.jft-status--success { background: #ECFDF5; color: #065F46; border: 1px solid #A7F3D0; }
.jft-status--error   { background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }
.jft-status--info    { background: #EEF2FF; color: #3730A3; border: 1px solid #C7D2FE; }

.jft-dark .jft-status--success { background: #064E3B; color: #6EE7B7; border-color: #065F46; }
.jft-dark .jft-status--error   { background: #7F1D1D; color: #FCA5A5; border-color: #991B1B; }
.jft-dark .jft-status--info    { background: #1E1B4B; color: #A5B4FC; border-color: #3730A3; }

/* ── Output ─────────────────────────────────────────────────── */
.jft-output-wrapper {
    position: relative;
    border: 1.5px solid var(--jft-border);
    border-radius: var(--jft-radius-sm);
    background: var(--jft-output-bg);
    min-height: 180px;
    max-height: 520px;
    overflow: hidden;
    transition: border-color var(--jft-transition), background var(--jft-transition);
    display: flex;
}

.jft-output-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--jft-text-light);
    pointer-events: none;
    transition: opacity var(--jft-transition);
}
.jft-output-placeholder svg { opacity: .4; }
.jft-output-placeholder p { font-size: .85rem; }
.jft-output-placeholder.jft-hidden { opacity: 0; }

/* Line numbers */
.jft-output-lines {
    flex-shrink: 0;
    width: 44px;
    padding: 16px 0;
    background: var(--jft-line-bg);
    border-right: 1px solid var(--jft-border);
    overflow: hidden;
    display: none;
    text-align: right;
    user-select: none;
}
.jft-output-lines span {
    display: block;
    padding: 0 10px 0 0;
    font-family: var(--jft-font-mono);
    font-size: .78rem;
    line-height: 1.7;
    color: var(--jft-line-text);
}
.jft-output-lines.jft-visible { display: block; }

.jft-output {
    flex: 1;
    overflow: auto;
    padding: 16px;
    font-family: var(--jft-font-mono);
    font-size: .82rem;
    line-height: 1.7;
    color: var(--jft-text);
    white-space: pre;
    word-break: normal;
    tab-size: 4;
    margin: 0;
    background: transparent;
    border: none;
    outline: none;
}

/* ── Syntax Highlighting ─────────────────────────────────────── */
.jft-output .jft-key    { color: var(--jft-syn-key); font-weight: 600; }
.jft-output .jft-str    { color: var(--jft-syn-str); }
.jft-output .jft-num    { color: var(--jft-syn-num); }
.jft-output .jft-bool   { color: var(--jft-syn-bool); font-weight: 600; }
.jft-output .jft-null   { color: var(--jft-syn-null); font-weight: 600; }
.jft-output .jft-punct  { color: var(--jft-syn-bracket); }

/* ── Features strip ─────────────────────────────────────────── */
.jft-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 28px;
    max-width: 900px;
    margin: 22px auto 0;
}
.jft-feature {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: .8rem;
    font-weight: 500;
    color: var(--jft-text-muted);
}
.jft-feature svg { color: var(--jft-primary); opacity: .8; }

/* ── Copy success flash ──────────────────────────────────────── */
@keyframes jft-flash {
    0%   { background: rgba(79,70,229,.15); }
    100% { background: transparent; }
}
.jft-output-wrapper.jft-flash { animation: jft-flash .6s ease; }

/* ── Pulse animation for buttons ─────────────────────────────── */
@keyframes jft-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(79,70,229,.4); }
    50%       { box-shadow: 0 0 0 6px rgba(79,70,229,0); }
}
.jft-btn--primary.jft-btn--active { animation: jft-pulse .6s ease; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 640px) {
    .jft-card { padding: 18px 14px; }

    .jft-buttons { gap: 8px; }
    .jft-btn { padding: 8px 13px; font-size: .8rem; }
    .jft-btn span { display: none; }

    .jft-title { font-size: 1.2rem; }
    .jft-header { gap: 10px; }
    .jft-header-icon svg { width: 28px; height: 28px; }
}

@media (max-width: 400px) {
    .jft-wrapper { padding: 16px 10px 32px; }
}

/* ── Scrollbar styling ───────────────────────────────────────── */
.jft-output::-webkit-scrollbar,
.jft-textarea::-webkit-scrollbar { width: 6px; height: 6px; }
.jft-output::-webkit-scrollbar-track,
.jft-textarea::-webkit-scrollbar-track { background: transparent; }
.jft-output::-webkit-scrollbar-thumb,
.jft-textarea::-webkit-scrollbar-thumb {
    background: var(--jft-border);
    border-radius: 3px;
}
.jft-output::-webkit-scrollbar-thumb:hover,
.jft-textarea::-webkit-scrollbar-thumb:hover { background: var(--jft-text-light); }