/*
Theme Name:   MailCheck SAAS
Theme URI:    https://mailcheck.example.com
Author:       MailCheck Team
Author URI:   https://mailcheck.example.com
Description:  A fully-featured SaaS email verification theme with membership, CSV import/export, and bulk verification.
Version:      1.0.0
Requires PHP: 7.4
License:      GNU General Public License v2 or later
License URI:  https://www.gnu.org/licenses/gpl-2.0.html
Text Domain:  mailcheck-saas
Tags:         saas, email, verification, dark-theme
*/

/* ===== CSS Variables ===== */
:root {
    --mc-bg: #050505;
    --mc-bg-surface: #111111;
    --mc-bg-surface-hover: #1a1a1a;
    --mc-bg-input: #0a0a0a;
    --mc-text-primary: #ffffff;
    --mc-text-secondary: #888888;
    --mc-text-muted: #555555;
    --mc-border: #222222;
    --mc-border-hover: #333333;
    --mc-accent: #ffffff;
    --mc-accent-muted: rgba(255,255,255,0.1);
    --mc-safe: #4ade80;
    --mc-safe-bg: rgba(74,222,128,0.12);
    --mc-invalid: #f87171;
    --mc-invalid-bg: rgba(248,113,113,0.12);
    --mc-risky: #fbbf24;
    --mc-risky-bg: rgba(251,191,36,0.12);
    --mc-unknown: #888888;
    --mc-unknown-bg: rgba(136,136,136,0.12);
    --mc-radius: 12px;
    --mc-radius-sm: 8px;
    --mc-radius-xs: 6px;
    --mc-shadow: 0 20px 40px rgba(0,0,0,0.4);
    --mc-transition: 0.2s ease;
    --mc-max-width: 1100px;
    --mc-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--mc-font);
    background-color: var(--mc-bg);
    color: var(--mc-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--mc-text-primary); text-decoration: none; transition: opacity var(--mc-transition); }
a:hover { opacity: 0.8; }

img { max-width: 100%; height: auto; }

/* ===== Layout ===== */
.mc-container {
    max-width: var(--mc-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.mc-section {
    padding: 5rem 0;
}

/* ===== Navigation ===== */
.mc-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(5,5,5,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--mc-border);
    padding: 0 1.5rem;
}

.mc-nav-inner {
    max-width: var(--mc-max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.mc-nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.mc-nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}

.mc-nav-links a {
    font-size: 0.9rem;
    color: var(--mc-text-secondary);
    transition: color var(--mc-transition);
}

.mc-nav-links a:hover { color: var(--mc-text-primary); opacity: 1; }

.mc-nav-links .mc-active { color: var(--mc-text-primary); }

/* ===== Buttons ===== */
.mc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.5rem;
    border-radius: var(--mc-radius-xs);
    font-family: var(--mc-font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--mc-transition);
    text-decoration: none;
    line-height: 1.4;
}

.mc-btn:hover { opacity: 0.9; transform: translateY(-1px); }
.mc-btn:active { transform: translateY(0); }
.mc-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.mc-btn-primary {
    background: var(--mc-accent);
    color: var(--mc-bg);
}

.mc-btn-secondary {
    background: transparent;
    color: var(--mc-text-primary);
    border: 1px solid var(--mc-border);
}

.mc-btn-secondary:hover { border-color: var(--mc-border-hover); background: var(--mc-bg-surface); }

.mc-btn-danger {
    background: var(--mc-invalid);
    color: #000;
}

.mc-btn-sm { padding: 0.4rem 1rem; font-size: 0.8rem; }
.mc-btn-lg { padding: 0.85rem 2rem; font-size: 1rem; }
.mc-btn-block { width: 100%; }

/* ===== Cards ===== */
.mc-card {
    background: var(--mc-bg-surface);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius);
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.mc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}

/* ===== Forms ===== */
.mc-form-group {
    margin-bottom: 1.25rem;
}

.mc-form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--mc-text-secondary);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.mc-form-input,
.mc-form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--mc-bg-input);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius-xs);
    color: var(--mc-text-primary);
    font-family: var(--mc-font);
    font-size: 0.95rem;
    transition: border-color var(--mc-transition);
}

.mc-form-input:focus,
.mc-form-select:focus {
    outline: none;
    border-color: #555;
    box-shadow: 0 0 0 3px rgba(255,255,255,0.05);
}

.mc-form-input::placeholder { color: var(--mc-text-muted); }

.mc-form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23888' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.mc-form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--mc-bg-input);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius-xs);
    color: var(--mc-text-primary);
    font-family: var(--mc-font);
    font-size: 0.95rem;
    resize: vertical;
    min-height: 100px;
}

.mc-form-textarea:focus {
    outline: none;
    border-color: #555;
}

/* ===== Badges ===== */
.mc-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mc-badge-safe { background: var(--mc-safe-bg); color: var(--mc-safe); }
.mc-badge-invalid { background: var(--mc-invalid-bg); color: var(--mc-invalid); }
.mc-badge-risky { background: var(--mc-risky-bg); color: var(--mc-risky); }
.mc-badge-unknown { background: var(--mc-unknown-bg); color: var(--mc-unknown); }
.mc-badge-muted { background: var(--mc-accent-muted); color: var(--mc-text-secondary); }

/* ===== Alerts ===== */
.mc-alert {
    padding: 1rem 1.25rem;
    border-radius: var(--mc-radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    border: 1px solid var(--mc-border);
}

.mc-alert-error { background: var(--mc-invalid-bg); color: var(--mc-invalid); border-color: rgba(248,113,113,0.3); }
.mc-alert-success { background: var(--mc-safe-bg); color: var(--mc-safe); border-color: rgba(74,222,128,0.3); }
.mc-alert-warning { background: var(--mc-risky-bg); color: var(--mc-risky); border-color: rgba(251,191,36,0.3); }
.mc-alert-info { background: var(--mc-unknown-bg); color: var(--mc-text-secondary); }

/* ===== Tables ===== */
.mc-table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius-sm);
}

.mc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.mc-table th {
    background: var(--mc-bg-surface);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--mc-text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--mc-border);
}

.mc-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--mc-border);
}

.mc-table tr:last-child td { border-bottom: none; }

.mc-table tr:hover td { background: rgba(255,255,255,0.02); }

/* ===== Spinner ===== */
.mc-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0,0,0,0.15);
    border-top-color: var(--mc-bg);
    border-radius: 50%;
    animation: mc-spin 0.7s linear infinite;
    display: inline-block;
}

.mc-spinner-light {
    border-color: rgba(255,255,255,0.15);
    border-top-color: var(--mc-text-primary);
}

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

/* ===== Hero ===== */
.mc-hero {
    padding: 8rem 0 5rem;
    text-align: center;
}

.mc-hero-badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    border: 1px solid var(--mc-border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--mc-text-secondary);
    margin-bottom: 2rem;
}

.mc-hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1.25rem;
}

.mc-hero p {
    font-size: 1.15rem;
    color: var(--mc-text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.mc-hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Features Grid ===== */
.mc-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.mc-feature-card {
    background: var(--mc-bg-surface);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius);
    padding: 2rem;
    transition: border-color var(--mc-transition);
}

.mc-feature-card:hover { border-color: var(--mc-border-hover); }

.mc-feature-icon {
    width: 48px;
    height: 48px;
    background: var(--mc-accent-muted);
    border-radius: var(--mc-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.mc-feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.mc-feature-card p {
    font-size: 0.9rem;
    color: var(--mc-text-secondary);
    line-height: 1.6;
}

/* ===== Pricing ===== */
.mc-pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: start;
}

.mc-pricing-card {
    background: var(--mc-bg-surface);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius);
    padding: 2.5rem 2rem;
    text-align: center;
}

.mc-pricing-card.mc-featured {
    border-color: var(--mc-text-primary);
    box-shadow: 0 0 40px rgba(255,255,255,0.05);
}

.mc-pricing-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.mc-pricing-card .mc-price {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 1rem 0;
}

.mc-pricing-card .mc-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--mc-text-secondary);
}

.mc-pricing-card .mc-price-desc {
    color: var(--mc-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.mc-pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.mc-pricing-features li {
    padding: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--mc-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mc-pricing-features li::before {
    content: '✓';
    color: var(--mc-text-primary);
    font-weight: 600;
}

/* ===== Stats Grid (Dashboard) ===== */
.mc-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.mc-stat-card {
    background: var(--mc-bg-surface);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius-sm);
    padding: 1.25rem;
}

.mc-stat-card .mc-stat-label {
    font-size: 0.75rem;
    color: var(--mc-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.35rem;
}

.mc-stat-card .mc-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
}

/* ===== Verify Result ===== */
.mc-result-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--mc-border);
}

.mc-result-email {
    font-size: 1.25rem;
    font-weight: 500;
    word-break: break-all;
    margin-top: 0.5rem;
}

.mc-verify-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.mc-verify-card {
    background: var(--mc-bg-input);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius-sm);
    padding: 1rem;
    text-align: center;
}

.mc-verify-card .mc-verify-label {
    font-size: 0.75rem;
    color: var(--mc-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.35rem;
}

.mc-verify-card .mc-verify-value { font-weight: 600; font-size: 1.05rem; }

/* ===== CSV Upload ===== */
.mc-upload-zone {
    border: 2px dashed var(--mc-border);
    border-radius: var(--mc-radius);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--mc-transition), background var(--mc-transition);
}

.mc-upload-zone:hover,
.mc-upload-zone.mc-dragover {
    border-color: var(--mc-text-secondary);
    background: rgba(255,255,255,0.02);
}

.mc-upload-zone svg { margin-bottom: 1rem; opacity: 0.5; }

.mc-upload-zone p {
    color: var(--mc-text-secondary);
    font-size: 0.9rem;
}

.mc-upload-zone .mc-upload-hint {
    font-size: 0.8rem;
    color: var(--mc-text-muted);
    margin-top: 0.5rem;
}

/* ===== Column Mapping ===== */
.mc-mapping-preview {
    margin-top: 1.5rem;
}

/* ===== Progress Bar ===== */
.mc-progress {
    width: 100%;
    height: 6px;
    background: var(--mc-border);
    border-radius: 3px;
    overflow: hidden;
    margin: 1rem 0;
}

.mc-progress-bar {
    height: 100%;
    background: var(--mc-accent);
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* ===== Auth Pages ===== */
.mc-auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.mc-auth-card {
    width: 100%;
    max-width: 420px;
}

.mc-auth-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
}

.mc-auth-card .mc-auth-subtitle {
    text-align: center;
    color: var(--mc-text-secondary);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.mc-auth-card .mc-auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--mc-text-secondary);
}

/* ===== Pagination ===== */
.mc-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.mc-page-btn {
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius-xs);
    background: transparent;
    color: var(--mc-text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--mc-transition);
}

.mc-page-btn:hover { border-color: var(--mc-border-hover); color: var(--mc-text-primary); }
.mc-page-btn.mc-active { background: var(--mc-text-primary); color: var(--mc-bg); border-color: var(--mc-text-primary); }
.mc-page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== Utility ===== */
.mc-hidden { display: none !important; }
.mc-mt-1 { margin-top: 0.5rem; }
.mc-mt-2 { margin-top: 1rem; }
.mc-mt-3 { margin-top: 1.5rem; }
.mc-mt-4 { margin-top: 2rem; }
.mc-mb-1 { margin-bottom: 0.5rem; }
.mc-mb-2 { margin-bottom: 1rem; }
.mc-mb-3 { margin-bottom: 1.5rem; }
.mc-mb-4 { margin-bottom: 2rem; }
.mc-text-center { text-align: center; }
.mc-text-secondary { color: var(--mc-text-secondary); }
.mc-text-muted { color: var(--mc-text-muted); }
.mc-text-sm { font-size: 0.85rem; }
.mc-flex { display: flex; }
.mc-flex-between { display: flex; justify-content: space-between; align-items: center; }
.mc-flex-center { display: flex; align-items: center; justify-content: center; }
.mc-gap-1 { gap: 0.5rem; }
.mc-gap-2 { gap: 1rem; }

/* ===== Animations ===== */
@keyframes mc-fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.mc-animate-in { animation: mc-fadeIn 0.4s ease forwards; }

/* ===== Footer ===== */
.mc-footer {
    border-top: 1px solid var(--mc-border);
    padding: 2rem 0;
    text-align: center;
    color: var(--mc-text-muted);
    font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .mc-features-grid,
    .mc-pricing-grid { grid-template-columns: 1fr; }
    .mc-verify-grid { grid-template-columns: 1fr; }
    .mc-hero h1 { font-size: 2rem; }
    .mc-hero { padding: 6rem 0 3rem; }
    .mc-nav-links { display: none; }
    .mc-section { padding: 3rem 0; }
}

@media (max-width: 480px) {
    .mc-stats-grid { grid-template-columns: 1fr; }
    .mc-card { padding: 1.5rem; }
}

/* ===== WordPress Admin Bar Offset ===== */
body.admin-bar .mc-nav { top: 32px; }
@media (max-width: 782px) {
    body.admin-bar .mc-nav { top: 46px; }
}

/* ===== Page Header ===== */
.mc-page-header {
    padding: 7rem 0 2rem;
    border-bottom: 1px solid var(--mc-border);
    margin-bottom: 2rem;
}

.mc-page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.mc-page-header p {
    color: var(--mc-text-secondary);
    margin-top: 0.25rem;
}

/* ===== Empty State ===== */
.mc-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--mc-text-secondary);
}

.mc-empty svg { margin-bottom: 1rem; opacity: 0.3; }
.mc-empty p { font-size: 0.95rem; }

/* ===== Job Status ===== */
.mc-job-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.mc-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--mc-unknown);
}

.mc-status-dot.mc-running { background: var(--mc-risky); animation: mc-pulse 1.5s infinite; }
.mc-status-dot.mc-completed { background: var(--mc-safe); }

@keyframes mc-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ===== API Key Display ===== */
.mc-api-key {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
    background: var(--mc-bg-input);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius-xs);
    word-break: break-all;
    position: relative;
}

/* ===== Section Headers ===== */
.mc-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.mc-section-desc {
    color: var(--mc-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}