/*
 * AIT Easy Post Customization - Premium Dashboard Design
 * Version: 2.0.1
 * Modern, Professional & Outstanding UI/UX
 */

:root {
    /* Primary Colors - Deep Ocean Blue Gradient */
    --aitepc-primary-start: #667eea;
    --aitepc-primary-end: #764ba2;
    --aitepc-accent: #f093fb;
    --aitepc-accent-light: #4facfe;

    /* Complementary Colors */
    --aitepc-success: #00d4aa;
    --aitepc-success-bg: #e6fff9;
    --aitepc-warning: #ffd93d;
    --aitepc-warning-bg: #fff9e6;
    --aitepc-danger: #ff6b9d;
    --aitepc-danger-bg: #ffe6ef;
    --aitepc-info: #00b4d8;
    --aitepc-info-bg: #e6f7fc;

    /* Neutral Colors */
    --aitepc-dark: #2d3748;
    --aitepc-text: #1a202c;
    --aitepc-text-muted: #718096;
    --aitepc-bg-main: #f7fafc;
    --aitepc-card-bg: #ffffff;
    --aitepc-border: #e2e8f0;
    --aitepc-border-light: #edf2f7;

    /* Shadows */
    --aitepc-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --aitepc-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --aitepc-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --aitepc-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.15);
    --aitepc-shadow-colored: 0 8px 32px rgba(102, 126, 234, 0.25);
}

/* Global Background */
body.toplevel_page_aitepc-expiry-date-settings {
    background: var(--aitepc-bg-main);
}

/* Main Container */
.aitepc-wrap {
    max-width: 1400px;
    margin: 40px auto;
    padding: 0 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Header Section with Outstanding Design */
.aitepc-title {
    background: linear-gradient(135deg, var(--aitepc-primary-start) 0%, var(--aitepc-primary-end) 100%);
    padding: 3.5rem 3rem;
    border-radius: 24px;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--aitepc-shadow-colored);
    display: flex;
    align-items: center;
    color: #ffffff;
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* Animated Background Pattern */
.aitepc-title::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: floatPattern 20s ease-in-out infinite;
}

.aitepc-title::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: floatPattern 15s ease-in-out infinite reverse;
}

@keyframes floatPattern {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.1); }
}

.aitepc-title .dashicons {
    font-size: 3rem;
    width: 3rem;
    height: 3rem;
    margin-right: 1.25rem;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
    animation: iconBounce 3s ease-in-out infinite;
}

@keyframes iconBounce {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-8px) rotate(-5deg); }
    75% { transform: translateY(-4px) rotate(5deg); }
}

.aitepc-title span {
    position: relative;
    z-index: 1;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Modern Tab Navigation */
.aitepc-tabs {
    background: var(--aitepc-card-bg);
    border-radius: 20px;
    padding: 8px;
    margin-bottom: 2.5rem;
    box-shadow: var(--aitepc-shadow);
    position: sticky;
    top: 32px;
    z-index: 100;
    border: 1px solid var(--aitepc-border-light);
}

.aitepc-tabs .nav {
    display: flex;
    gap: 6px;
}

.aitepc-tabs .nav-link {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--aitepc-text-muted);
    font-weight: 600;
    font-size: 1rem;
    padding: 16px 24px;
    border-radius: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
}

.aitepc-tabs .nav-link .dashicons {
    font-size: 1.25rem;
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.5rem;
    transition: transform 0.3s ease;
}

.aitepc-tabs .nav-link:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    color: var(--aitepc-primary-start);
    transform: translateY(-2px);
}

.aitepc-tabs .nav-link:hover .dashicons {
    transform: scale(1.1) rotate(-5deg);
}

.aitepc-tabs .nav-link.active {
    background: linear-gradient(135deg, var(--aitepc-primary-start) 0%, var(--aitepc-primary-end) 100%);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
    transform: translateY(-1px);
}

.aitepc-tabs .nav-link.active .dashicons {
    animation: tabIconPulse 2s ease-in-out infinite;
}

@keyframes tabIconPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

/* Card Components with Premium Design */
.aitepc-card {
    background: var(--aitepc-card-bg);
    border-radius: 20px;
    padding: 0;
    box-shadow: var(--aitepc-shadow);
    border: 1px solid var(--aitepc-border-light);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.aitepc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--aitepc-primary-start) 0%, var(--aitepc-accent) 50%, var(--aitepc-primary-end) 100%);
    background-size: 200% 100%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.aitepc-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--aitepc-shadow-lg);
    border-color: rgba(102, 126, 234, 0.3);
}

.card-body {
    padding: 2.5rem;
}

.card-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--aitepc-text);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    letter-spacing: -0.01em;
}

.card-title::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, var(--aitepc-primary-start), var(--aitepc-accent));
    border-radius: 50%;
    margin-right: 1rem;
    box-shadow: 0 0 16px rgba(102, 126, 234, 0.6);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.8; }
}

.card-text {
    font-size: 1.0625rem;
    color: var(--aitepc-text-muted);
    line-height: 1.7;
    margin-bottom: 2rem;
}

/* Form Elements with Modern Touch */
.form-label {
    font-weight: 600;
    color: var(--aitepc-text);
    font-size: 0.9375rem;
    margin-bottom: 0.625rem;
    display: block;
    letter-spacing: 0.01em;
}

.form-control,
.form-select {
    border: 2px solid var(--aitepc-border);
    border-radius: 12px;
    padding: 0.875rem 1.125rem;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--aitepc-card-bg);
    color: var(--aitepc-text);
    width: 100%;
}

.form-control:hover,
.form-select:hover {
    border-color: var(--aitepc-primary-start);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--aitepc-primary-start);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
    outline: none;
    background: var(--aitepc-card-bg);
}

.form-check-input {
    width: 1.375rem;
    height: 1.375rem;
    border: 2px solid var(--aitepc-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-check-input:checked {
    background: linear-gradient(135deg, var(--aitepc-primary-start), var(--aitepc-primary-end));
    border-color: var(--aitepc-primary-start);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}

.form-check-input:focus {
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}

.form-check-label {
    font-weight: 500;
    color: var(--aitepc-text);
    font-size: 0.9375rem;
    cursor: pointer;
    user-select: none;
    margin-left: 0.5rem;
}

/* Premium Button Styles */
.aitepc-btn,
.btn {
    border-radius: 12px;
    padding: 14px 32px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
}

.aitepc-btn::before,
.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.aitepc-btn:hover::before,
.btn:hover::before {
    width: 400px;
    height: 400px;
}

.aitepc-btn.btn-primary,
.btn-primary {
    background: linear-gradient(135deg, var(--aitepc-primary-start) 0%, var(--aitepc-primary-end) 100%);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.35);
    position: relative;
}

.aitepc-btn.btn-primary:hover,
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.45);
}

.aitepc-btn.btn-primary:active,
.btn-primary:active {
    transform: translateY(-1px);
}

.btn-outline-secondary {
    border: 2px solid var(--aitepc-border);
    background: transparent;
    color: var(--aitepc-text);
}

.btn-outline-secondary:hover {
    background: var(--aitepc-text-muted);
    color: #ffffff;
    border-color: var(--aitepc-text-muted);
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--aitepc-danger) 0%, #e63946 100%);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(255, 107, 157, 0.3);
}

.btn-danger:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 107, 157, 0.4);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.9375rem;
}

/* Premium Table Design */
.table-responsive {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--aitepc-shadow);
    margin-top: 1.5rem;
}

.aitepc-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9375rem;
}

.aitepc-table thead th {
    background: linear-gradient(135deg, var(--aitepc-primary-start) 0%, var(--aitepc-primary-end) 100%);
    color: #ffffff;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1.25rem 1.5rem;
    font-size: 0.875rem;
    border: none;
}

.aitepc-table tbody td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--aitepc-border-light);
    color: var(--aitepc-text);
    vertical-align: middle;
}

.aitepc-table tbody tr {
    background: var(--aitepc-card-bg);
    transition: all 0.3s ease;
}

.aitepc-table tbody tr:hover {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    transform: scale(1.005);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

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

/* Alert Notifications */
.alert {
    border-radius: 16px;
    padding: 1.25rem 1.75rem;
    border: 2px solid;
    font-weight: 500;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.alert::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
}

.alert-success {
    background: var(--aitepc-success-bg);
    border-color: var(--aitepc-success);
    color: #047857;
}

.alert-success::before {
    background: var(--aitepc-success);
}

.alert-info {
    background: var(--aitepc-info-bg);
    border-color: var(--aitepc-info);
    color: #0369a1;
}

.alert-info::before {
    background: var(--aitepc-info);
}

.alert-warning {
    background: var(--aitepc-warning-bg);
    border-color: var(--aitepc-warning);
    color: #92400e;
}

.alert-warning::before {
    background: var(--aitepc-warning);
}

.alert-danger {
    background: var(--aitepc-danger-bg);
    border-color: var(--aitepc-danger);
    color: #be123c;
}

.alert-danger::before {
    background: var(--aitepc-danger);
}

/* Tab Content Animation */
.tab-content {
    position: relative;
}

.tab-pane {
    animation: fadeInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Validation Styles */
.invalid-feedback {
    display: none;
    color: var(--aitepc-danger);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.was-validated .form-control:invalid ~ .invalid-feedback,
.was-validated .form-select:invalid ~ .invalid-feedback {
    display: block;
}

.was-validated .form-control:invalid,
.was-validated .form-select:invalid {
    border-color: var(--aitepc-danger);
}

.was-validated .form-control:valid,
.was-validated .form-select:valid {
    border-color: var(--aitepc-success);
}

/* Utility Classes */
.d-flex { display: flex; }
.gap-2 { gap: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }
.text-muted { color: var(--aitepc-text-muted); }
.text-danger { color: var(--aitepc-danger); }
.text-center { text-align: center; }

/* Custom Scrollbar */
.table-responsive::-webkit-scrollbar {
    height: 10px;
}

.table-responsive::-webkit-scrollbar-track {
    background: var(--aitepc-border-light);
    border-radius: 10px;
}

.table-responsive::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--aitepc-primary-start), var(--aitepc-primary-end));
    border-radius: 10px;
}

.table-responsive::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--aitepc-primary-end), var(--aitepc-primary-start));
}

/* Responsive Design */
@media (max-width: 1024px) {
    .aitepc-wrap {
        max-width: 100%;
        padding: 0 15px;
        margin: 30px auto;
    }
}

@media (max-width: 768px) {
    .aitepc-wrap {
        margin: 20px auto;
    }

    .aitepc-title {
        font-size: 2rem;
        padding: 2.5rem 2rem;
        border-radius: 20px;
    }

    .aitepc-title .dashicons {
        font-size: 2.25rem;
        width: 2.25rem;
        height: 2.25rem;
    }

    .aitepc-tabs {
        padding: 6px;
        border-radius: 16px;
    }

    .aitepc-tabs .nav {
        flex-direction: column;
    }

    .aitepc-tabs .nav-link {
        padding: 14px 20px;
        font-size: 0.9375rem;
    }

    .card-body {
        padding: 2rem;
    }

    .card-title {
        font-size: 1.5rem;
    }

    .aitepc-table thead th,
    .aitepc-table tbody td {
        padding: 1rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 576px) {
    .aitepc-title {
        font-size: 1.5rem;
        padding: 2rem 1.5rem;
        border-radius: 16px;
    }

    .aitepc-title .dashicons {
        font-size: 2rem;
        width: 2rem;
        height: 2rem;
        margin-right: 0.75rem;
    }

    .aitepc-tabs .nav-link {
        padding: 12px 16px;
        font-size: 0.875rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .card-title {
        font-size: 1.375rem;
    }

    .aitepc-btn,
    .btn {
        padding: 12px 24px;
        font-size: 0.9375rem;
    }

    .btn-sm {
        padding: 8px 16px;
        font-size: 0.875rem;
    }
}

/* Additional Premium Effects */
.aitepc-card.text-center {
    padding-top: 3rem;
    padding-bottom: 3rem;
}

.aitepc-card.text-center .card-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.aitepc-card.text-center .card-title {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
}

/* Link Styling */
a.text-decoration-none {
    color: var(--aitepc-primary-start);
    font-weight: 600;
    transition: all 0.3s ease;
}

a.text-decoration-none:hover {
    color: var(--aitepc-primary-end);
    text-decoration: underline !important;
}

/* Row and Column Utilities */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -0.75rem;
}

.col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 0 0.75rem;
}

@media (max-width: 768px) {
    .col-md-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* Alignment Utilities */
.d-flex.align-items-center {
    align-items: center;
}

/* Enhanced Coming Soon Card */
.aitepc-card.text-center p {
    font-size: 1.125rem;
    line-height: 1.8;
    max-width: 600px;
}