/* ================================================
   PatrickJohnson.org — Style System
   Self-contained, no external dependencies
   ================================================ */

:root {
    --primary:        #6366f1;
    --primary-hover:  #4f46e5;
    --primary-glow:   rgba(99, 102, 241, 0.25);
    --accent:         #8b5cf6;
    --success:        #10b981;
    --success-glow:   rgba(16, 185, 129, 0.2);
    --error:          #ef4444;
    --error-bg:       rgba(239, 68, 68, 0.1);
    --bg-dark:        #0f172a;
    --card-bg:        rgba(30, 41, 59, 0.65);
    --input-bg:       rgba(10, 17, 34, 0.6);
    --text-main:      #f8fafc;
    --text-muted:     #94a3b8;
    --text-dim:       #64748b;
    --glass-border:   rgba(255, 255, 255, 0.08);
    --glass-shadow:   0 24px 48px rgba(0, 0, 0, 0.4);
    --radius-card:    24px;
    --radius-input:   12px;
    --radius-btn:     10px;
    --transition:     0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ── Base ───────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ── Animated Background Blobs ───────────────────── */
.bg-blobs {
    position: fixed;
    inset: 0;
    z-index: 0;
    filter: blur(90px);
    opacity: 0.45;
    pointer-events: none;
}

.blob {
    position: absolute;
    width: 550px;
    height: 550px;
    border-radius: 50%;
    background: var(--primary);
    top: -150px;
    left: -150px;
    animation: drift 22s infinite alternate ease-in-out;
}

.blob-2 {
    background: var(--accent);
    right: -150px;
    top: -100px;
    left: auto;
    animation-delay: -7s;
    animation-duration: 18s;
}

.blob-3 {
    background: #ec4899;
    bottom: -150px;
    left: 15%;
    top: auto;
    width: 400px;
    height: 400px;
    animation-delay: -13s;
    animation-duration: 26s;
}

@keyframes drift {
    0%   { transform: translate(0, 0) scale(1); }
    50%  { transform: translate(60px, 40px) scale(1.05); }
    100% { transform: translate(120px, 80px) scale(1.12); }
}

/* ── Layout ─────────────────────────────────────── */
main {
    position: relative;
    z-index: 1;
    width: min(800px, 92%);
    padding: 80px 0 60px;
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* ── Header ─────────────────────────────────────── */
header {
    text-align: center;
    margin-bottom: 52px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: #a5b4fc;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 3.75rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 60%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 14px;
}

p.subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    font-weight: 400;
    max-width: 480px;
    margin: 0 auto;
}

/* ── Tool Card ──────────────────────────────────── */
.tool-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-card);
    padding: 40px;
    box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.05);
    transition: box-shadow var(--transition);
}

.tool-card:focus-within {
    box-shadow: var(--glass-shadow), 0 0 0 1px rgba(99,102,241,0.3), inset 0 1px 0 rgba(255,255,255,0.05);
}

/* ── Labels ─────────────────────────────────────── */
label {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

label svg { flex-shrink: 0; opacity: 0.7; }

/* ── Textarea ───────────────────────────────────── */
.input-group { margin-bottom: 24px; }

textarea {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-input);
    padding: 16px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    line-height: 1.6;
    transition: border-color var(--transition), box-shadow var(--transition);
    resize: vertical;
    min-height: 80px;
}

textarea::placeholder { color: var(--text-dim); }

textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

/* ── Primary Button ─────────────────────────────── */
.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-btn);
    padding: 16px 28px;
    font-weight: 700;
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
    letter-spacing: 0.01em;
}

.btn-primary:hover {
    opacity: 0.92;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.45);
}

.btn-primary:active { transform: translateY(0); opacity: 1; }

/* ── Error Box ──────────────────────────────────── */
.error-box {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--error-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-input);
    color: #fca5a5;
    padding: 14px 16px;
    font-size: 0.9rem;
    margin-top: 18px;
}

.error-box[hidden] { display: none; }

/* ── Result Container ───────────────────────────── */
.output-container {
    margin-top: 28px;
    animation: slideUp 0.35s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.output-container[hidden] { display: none; }

@keyframes slideUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Result Link Box ────────────────────────────── */
.output-link-box {
    background: var(--input-bg);
    border: 1px solid var(--primary);
    border-radius: var(--radius-input);
    padding: 16px 20px;
    margin-bottom: 14px;
    box-shadow: 0 0 0 4px var(--primary-glow);
    transition: box-shadow var(--transition);
}

.output-link-box:hover {
    box-shadow: 0 0 0 6px var(--primary-glow);
}

.result-anchor {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #a5b4fc;
    text-decoration: none;
    font-size: 0.88rem;
    word-break: break-all;
    line-height: 1.5;
    transition: color var(--transition);
}

.result-anchor:hover { color: white; }
.result-anchor:hover .external-icon { opacity: 1; }

.external-icon {
    flex-shrink: 0;
    margin-top: 2px;
    opacity: 0.5;
    transition: opacity var(--transition);
}

/* ── Action Row ─────────────────────────────────── */
.action-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-btn);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    border: 1px solid;
    white-space: nowrap;
}

/* Copy button */
.btn-copy {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--glass-border);
    color: var(--text-main);
    flex: 1;
}
.btn-copy:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255,255,255,0.15);
}
.btn-copy.copied {
    background: var(--success-glow);
    border-color: var(--success);
    color: #6ee7b7;
}

/* Open button */
.btn-open {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-color: transparent;
    color: white;
    flex: 1;
    box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}
.btn-open:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(99,102,241,0.4);
}

/* Reset button */
.btn-reset {
    background: transparent;
    border-color: var(--glass-border);
    color: var(--text-dim);
    flex: 0 0 auto;
    padding: 12px 16px;
}
.btn-reset:hover {
    border-color: rgba(255,255,255,0.15);
    color: var(--text-muted);
    background: rgba(255,255,255,0.04);
}

/* ── Footer ─────────────────────────────────────── */
footer {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 48px;
    padding-bottom: 40px;
}

footer p + p { margin-top: 8px; }

.disclosure {
    font-size: 0.78rem;
    max-width: 560px;
    margin: 10px auto 0;
    opacity: 0.65;
    line-height: 1.7;
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 600px) {
    main { padding: 48px 0 40px; }
    .tool-card { padding: 24px 20px; }
    .action-row { flex-direction: column; }
    .btn-action { width: 100%; }
    .btn-reset { width: 100%; }
}