/* ========================================================
   WP QR Generator — Admin & Frontend Styles
   Author: Surya Kumar Panda | suryapanda.com
   ======================================================== */

:root {
    --qr-primary:     #2563eb;
    --qr-primary-dk:  #1d4ed8;
    --qr-primary-lt:  #eff6ff;
    --qr-accent:      #0ea5e9;
    --qr-surface:     #ffffff;
    --qr-bg:          #f1f5f9;
    --qr-border:      #e2e8f0;
    --qr-text:        #1e293b;
    --qr-muted:       #64748b;
    --qr-radius:      12px;
    --qr-shadow:      0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
    --qr-shadow-lg:   0 8px 32px rgba(37,99,235,.12);
    --qr-font:        -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.wp-qr-admin-wrap { font-family: var(--qr-font); max-width: 1080px; }

.wp-qr-header {
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 60%, #0ea5e9 100%);
    border-radius: var(--qr-radius);
    padding: 28px 32px;
    margin-bottom: 24px;
    box-shadow: var(--qr-shadow-lg);
}
.wp-qr-header-inner { display: flex; align-items: center; gap: 18px; }
.wp-qr-logo {
    background: rgba(255,255,255,.15);
    border-radius: 10px;
    padding: 8px;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    min-width: 52px;
    min-height: 52px;
}
.wp-qr-site-logo {
    max-height: 52px;
    max-width: 140px;
    width: auto;
    border-radius: 6px;
    object-fit: contain;
}
.wp-qr-title  { color: #fff; font-size: 22px; font-weight: 700; margin: 0 0 4px; }
.wp-qr-subtitle { color: rgba(255,255,255,.8); font-size: 13.5px; margin: 0; }

.wp-qr-header-meta { margin-left: auto; display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.wp-qr-badge {
    background: rgba(255,255,255,.2);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 20px;
    letter-spacing: .04em;
}
.wp-qr-header-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: rgba(255,255,255,.85);
    font-size: 12.5px;
    font-weight: 600;
    text-decoration: none;
    background: rgba(255,255,255,.15);
    padding: 5px 12px;
    border-radius: 20px;
    transition: background .15s;
}
.wp-qr-header-link:hover { background: rgba(255,255,255,.28); color: #fff; }

.wp-qr-main { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.wp-qr-panel {
    background: var(--qr-surface);
    border: 1px solid var(--qr-border);
    border-radius: var(--qr-radius);
    padding: 24px;
    box-shadow: var(--qr-shadow);
}

.wp-qr-section-title {
    display: flex; align-items: center; gap: 7px;
    font-size: 13px; font-weight: 700; text-transform: uppercase;
    letter-spacing: .06em; color: var(--qr-muted);
    margin: 0 0 18px; padding-bottom: 10px;
    border-bottom: 1px solid var(--qr-border);
}

.wp-qr-field-group { margin-bottom: 16px; }
.wp-qr-label {
    display: block; font-size: 12.5px; font-weight: 600;
    color: var(--qr-text); margin-bottom: 6px; letter-spacing: .02em;
}
.wp-qr-input, .wp-qr-select {
    width: 100%; box-sizing: border-box; padding: 8px 12px;
    font-size: 13.5px; border: 1.5px solid var(--qr-border);
    border-radius: 8px; background: #fff; color: var(--qr-text);
    transition: border-color .15s, box-shadow .15s; outline: none;
}
.wp-qr-input:focus, .wp-qr-select:focus {
    border-color: var(--qr-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.wp-qr-hint { font-size: 11.5px; color: var(--qr-muted); margin: 5px 0 0; }
.wp-qr-input-row { display: flex; gap: 8px; }
.wp-qr-input-row .wp-qr-input { flex: 1; }

.wp-qr-btn-icon {
    flex-shrink: 0; background: var(--qr-primary-lt); color: var(--qr-primary);
    border: 1.5px solid var(--qr-border); border-radius: 8px; padding: 0 12px;
    cursor: pointer; transition: background .15s; display: flex; align-items: center;
}
.wp-qr-btn-icon:hover { background: #dbeafe; }
.wp-qr-row-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.wp-qr-color-wrap { display: flex; align-items: center; gap: 8px; }
.wp-qr-color-wrap input[type="color"] {
    width: 36px; height: 36px; padding: 2px; border: 1.5px solid var(--qr-border);
    border-radius: 8px; cursor: pointer; flex-shrink: 0; background: #fff;
}
.wp-qr-color-text { flex: 1; }

/* Logo upload */
.wp-qr-logo-field { display: flex; flex-direction: column; gap: 10px; }
.wp-qr-logo-preview {
    width: 200px; height: 90px; border: 2px dashed var(--qr-border);
    border-radius: 10px; overflow: hidden; display: flex;
    align-items: center; justify-content: center;
    background: var(--qr-bg); transition: border-color .2s;
}
.wp-qr-logo-preview img { max-width: 100%; max-height: 100%; object-fit: contain; padding: 6px; }
.wp-qr-logo-empty { flex-direction: column; gap: 6px; }
.wp-qr-logo-empty span { font-size: 11.5px; color: var(--qr-muted); }
.wp-qr-logo-preview.has-image { border-style: solid; border-color: var(--qr-primary); background: #fff; }
.wp-qr-logo-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Presets */
.wp-qr-presets { margin-bottom: 20px; }
.wp-qr-preset-btns { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 8px; }
.wp-qr-preset {
    padding: 5px 13px; font-size: 12px; font-weight: 600; border-radius: 20px;
    border: 1.5px solid var(--qr-border); background: #f8fafc;
    cursor: pointer; transition: all .15s; color: var(--qr-text);
}
.wp-qr-preset:hover { background: var(--qr-primary-lt); border-color: var(--qr-primary); color: var(--qr-primary); }

/* Primary button */
.wp-qr-btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: linear-gradient(135deg, var(--qr-primary) 0%, var(--qr-accent) 100%);
    color: #fff !important; border: none; border-radius: 9px;
    padding: 11px 22px; font-size: 14px; font-weight: 700;
    cursor: pointer; width: 100%; justify-content: center;
    box-shadow: 0 2px 8px rgba(37,99,235,.3);
    transition: transform .1s, box-shadow .1s; letter-spacing: .01em; height: auto;
}
.wp-qr-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(37,99,235,.4); color: #fff !important; }
.wp-qr-btn-primary:active { transform: translateY(0); }

/* Preview */
.wp-qr-preview-box {
    min-height: 240px; background: var(--qr-bg);
    border: 2px dashed var(--qr-border); border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 16px; transition: border-color .2s; padding: 20px;
}
.wp-qr-preview-box.has-qr { border-style: solid; border-color: var(--qr-primary); background: #fff; }
.wp-qr-preview-empty { text-align: center; color: var(--qr-muted); }
.wp-qr-preview-empty p { font-size: 13px; margin-top: 12px; line-height: 1.5; }
#wp-qr-result { text-align: center; }
#wp-qr-image { max-width: 100%; border-radius: 8px; box-shadow: 0 2px 12px rgba(0,0,0,.12); }
.wp-qr-result-url { font-size: 12px; color: var(--qr-muted); margin-top: 8px; word-break: break-all; }

.wp-qr-loading { text-align: center; color: var(--qr-muted); }
.wp-qr-loading p { font-size: 13px; margin-top: 10px; }
.wp-qr-spinner {
    width: 32px; height: 32px; border: 3px solid var(--qr-border);
    border-top-color: var(--qr-primary); border-radius: 50%;
    animation: qr-spin .7s linear infinite; margin: 0 auto;
}
@keyframes qr-spin { to { transform: rotate(360deg); } }

/* Actions */
.wp-qr-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.wp-qr-btn-action {
    display: inline-flex; align-items: center; gap: 6px;
    flex: 1; justify-content: center; padding: 8px 12px;
    font-size: 12.5px; font-weight: 600; border: 1.5px solid var(--qr-border);
    border-radius: 8px; background: #fff; color: var(--qr-text);
    cursor: pointer; text-decoration: none; transition: all .15s;
}
.wp-qr-btn-action:hover { background: var(--qr-primary-lt); border-color: var(--qr-primary); color: var(--qr-primary); }

.wp-qr-shortcode-output { margin-top: 6px; }
.wp-qr-code-block { background: #0f172a; border-radius: 8px; padding: 12px 16px; overflow-x: auto; }
.wp-qr-code-block code {
    font-family: 'Fira Code', Consolas, monospace;
    font-size: 12.5px; color: #7dd3fc; white-space: pre-wrap; word-break: break-all;
}

/* Help table */
.wp-qr-help-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 12px; }
.wp-qr-help-table th { background: var(--qr-bg); padding: 9px 12px; text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing:.05em; color: var(--qr-muted); border-bottom: 2px solid var(--qr-border); }
.wp-qr-help-table td { padding: 9px 12px; border-bottom: 1px solid var(--qr-border); color: var(--qr-text); }
.wp-qr-help-table td code { background: var(--qr-bg); padding: 2px 6px; border-radius: 4px; font-size: 12px; }
.wp-qr-help-table tr:last-child td { border-bottom: 0; }

/* Author card */
.wp-qr-author-card {
    display: flex; align-items: center; gap: 14px;
    background: var(--qr-surface); border: 1px solid var(--qr-border);
    border-radius: var(--qr-radius); padding: 14px 20px;
    margin-top: 14px; box-shadow: var(--qr-shadow);
}
.wp-qr-author-avatar {
    width: 42px; height: 42px;
    background: linear-gradient(135deg, var(--qr-primary), var(--qr-accent));
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 800; font-size: 14px; flex-shrink: 0;
}
.wp-qr-author-name { font-weight: 700; font-size: 14px; margin: 0 0 2px; color: var(--qr-text); }
.wp-qr-author-link { font-size: 12.5px; color: var(--qr-primary); text-decoration: none; }
.wp-qr-author-link:hover { text-decoration: underline; }

/* WP Settings API overrides */
.wp-qr-panel .form-table th { font-size: 13px; font-weight: 600; color: var(--qr-text); padding: 14px 10px 14px 0; width: 200px; }
.wp-qr-panel .form-table td { padding: 12px 0; }
.wp-qr-panel h2.title { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--qr-muted); margin: 20px 0 6px; padding-bottom: 8px; border-bottom: 1px solid var(--qr-border); }

/* Toast */
.wp-qr-toast {
    position: fixed; bottom: 28px; right: 28px;
    background: #1e293b; color: #fff; padding: 11px 20px;
    border-radius: 10px; font-size: 13.5px; font-weight: 600;
    box-shadow: 0 4px 20px rgba(0,0,0,.25); z-index: 99999;
    opacity: 0; transform: translateY(10px);
    transition: opacity .25s, transform .25s; pointer-events: none;
}
.wp-qr-toast.show { opacity: 1; transform: translateY(0); }

/* Frontend shortcode */
.wp-qr-wrap { display: block; margin: 1em 0; }
.wp-qr-align-center { text-align: center; }
.wp-qr-align-left    { text-align: left; }
.wp-qr-align-right   { text-align: right; }
.wp-qr-caption { font-size: .85em; color: #666; margin-top: 6px; }

/* Responsive */
@media (max-width: 780px) {
    .wp-qr-main { grid-template-columns: 1fr; }
    .wp-qr-row-2col { grid-template-columns: 1fr; }
    .wp-qr-header-meta { display: none; }
}