/**
 * PIN Platform - Public Styles
 * Mobile-first, professional design.
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --pin-primary: #2C5F2D;
    --pin-primary-dark: #1e4620;
    --pin-secondary: #1E3A8A;
    --pin-accent: #F59E0B;
    --pin-accent-dark: #D97706;
    --pin-bg: #F9FAFB;
    --pin-bg-white: #FFFFFF;
    --pin-text: #111827;
    --pin-text-light: #6B7280;
    --pin-text-muted: #9CA3AF;
    --pin-border: #E5E7EB;
    --pin-success: #059669;
    --pin-warning: #D97706;
    --pin-error: #DC2626;
    --pin-radius: 8px;
    --pin-radius-lg: 12px;
    --pin-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --pin-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.1);
    --pin-max-width: 1200px;
}

/* ============================================
   Base
   ============================================ */
.pin-landing,
.pin-dashboard,
.pin-registration,
.pin-transparency {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--pin-text);
    line-height: 1.6;
    max-width: var(--pin-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.pin-landing *,
.pin-dashboard *,
.pin-registration *,
.pin-transparency * {
    box-sizing: border-box;
}

/* ============================================
   Buttons
   ============================================ */
.pin-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: 2px solid transparent;
    border-radius: var(--pin-radius);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1.4;
}

.pin-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--pin-shadow-lg);
}

.pin-btn-primary {
    background: var(--pin-primary);
    color: #fff;
}

.pin-btn-primary:hover {
    background: var(--pin-primary-dark);
    color: #fff;
}

.pin-btn-secondary {
    background: var(--pin-secondary);
    color: #fff;
}

.pin-btn-secondary:hover {
    background: #152e6e;
    color: #fff;
}

.pin-btn-accent {
    background: var(--pin-accent);
    color: var(--pin-text);
}

.pin-btn-accent:hover {
    background: var(--pin-accent-dark);
}

.pin-btn-outline {
    background: transparent;
    border-color: var(--pin-primary);
    color: var(--pin-primary);
}

.pin-btn-outline:hover {
    background: var(--pin-primary);
    color: #fff;
}

.pin-btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.875rem;
}

.pin-btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.pin-btn-full {
    width: 100%;
    display: block;
}

.pin-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   Landing Page
   ============================================ */
.pin-hero {
    text-align: center;
    padding: 3rem 1rem;
    background: linear-gradient(135deg, var(--pin-primary) 0%, var(--pin-secondary) 100%);
    color: #fff;
    border-radius: var(--pin-radius-lg);
    margin: 1rem 0 2rem;
}

.pin-hero h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: #fff;
}

.pin-hero-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    opacity: 0.95;
    margin-bottom: 0.5rem;
}

.pin-hero-desc {
    font-size: 1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.pin-hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.pin-hero-ctas .pin-btn {
    min-width: 160px;
}

/* How It Works */
.pin-section {
    padding: 2rem 0;
}

.pin-section h2 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--pin-text);
}

.pin-how-it-works {
    background: var(--pin-bg-white);
    border-radius: var(--pin-radius-lg);
    padding: 2rem 1rem;
    box-shadow: var(--pin-shadow);
}

.pin-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.pin-step {
    text-align: center;
    padding: 1.5rem;
}

.pin-step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--pin-primary);
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.pin-step h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.pin-step p {
    color: var(--pin-text-light);
    font-size: 0.95rem;
}

/* Stats Grid */
.pin-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.pin-stats-large .pin-stat-item {
    padding: 1.5rem;
}

.pin-stat-item {
    background: var(--pin-bg-white);
    border-radius: var(--pin-radius);
    padding: 1.25rem;
    text-align: center;
    box-shadow: var(--pin-shadow);
    border: 1px solid var(--pin-border);
}

.pin-stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--pin-primary);
    margin-bottom: 0.25rem;
}

.pin-stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--pin-text-light);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Payment Flow */
.pin-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--pin-bg-white);
    border-radius: var(--pin-radius-lg);
    box-shadow: var(--pin-shadow);
}

.pin-flow-item {
    text-align: center;
    padding: 1rem;
    background: var(--pin-bg);
    border-radius: var(--pin-radius);
    width: 100%;
    max-width: 250px;
}

.pin-flow-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.pin-flow-item strong {
    display: block;
    margin-bottom: 0.25rem;
}

.pin-flow-item span {
    color: var(--pin-text-light);
    font-size: 0.95rem;
}

.pin-flow-arrow {
    font-size: 1.5rem;
    color: var(--pin-primary);
    transform: rotate(90deg);
}

/* ============================================
   Forms
   ============================================ */
.pin-form-container {
    max-width: 640px;
    margin: 2rem auto;
    background: var(--pin-bg-white);
    border-radius: var(--pin-radius-lg);
    padding: 2rem;
    box-shadow: var(--pin-shadow-lg);
}

.pin-form-container h2 {
    margin-bottom: 0.5rem;
    color: var(--pin-primary);
}

.pin-form-desc {
    color: var(--pin-text-light);
    margin-bottom: 1.5rem;
}

.pin-form h3 {
    margin: 1.5rem 0 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--pin-border);
    color: var(--pin-secondary);
    font-size: 1rem;
}

.pin-form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.pin-form-group {
    margin-bottom: 1rem;
}

.pin-form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.35rem;
    color: var(--pin-text);
}

.pin-form-group label .required {
    color: var(--pin-error);
}

.pin-form-group input,
.pin-form-group select,
.pin-form-group textarea {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--pin-border);
    border-radius: var(--pin-radius);
    font-size: 1rem;
    transition: border-color 0.2s;
    background: var(--pin-bg-white);
    color: var(--pin-text);
}

.pin-form-group input:focus,
.pin-form-group select:focus,
.pin-form-group textarea:focus {
    outline: none;
    border-color: var(--pin-primary);
    box-shadow: 0 0 0 3px rgba(44, 95, 45, 0.1);
}

.pin-form-hint {
    font-size: 0.8rem;
    color: var(--pin-text-muted);
    margin-top: 0.25rem;
    display: block;
}

.pin-form-actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
}

.pin-form-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--pin-text-light);
}

.pin-form-footer a {
    color: var(--pin-primary);
    text-decoration: none;
    font-weight: 600;
}

.pin-form-footer a:hover {
    text-decoration: underline;
}

/* ============================================
   Notices
   ============================================ */
.pin-notice {
    padding: 0.75rem 1rem;
    border-radius: var(--pin-radius);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    border-left: 4px solid;
}

.pin-notice-info {
    background: #EFF6FF;
    border-color: var(--pin-secondary);
    color: #1E40AF;
}

.pin-notice-warning {
    background: #FFFBEB;
    border-color: var(--pin-accent);
    color: #92400E;
}

.pin-notice-error {
    background: #FEF2F2;
    border-color: var(--pin-error);
    color: #991B1B;
}

.pin-notice-success {
    background: #F0FDF4;
    border-color: var(--pin-success);
    color: #065F46;
}

.pin-notice a {
    font-weight: 600;
    color: inherit;
}

/* ============================================
   Dashboard
   ============================================ */
.pin-dash-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--pin-border);
}

.pin-dash-header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
    color: var(--pin-primary);
}

.pin-dash-company {
    color: var(--pin-text-light);
    font-size: 0.95rem;
}

.pin-dash-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.pin-dash-stat-card {
    background: var(--pin-bg-white);
    border: 1px solid var(--pin-border);
    border-radius: var(--pin-radius);
    padding: 1.25rem;
    text-align: center;
    box-shadow: var(--pin-shadow);
}

.pin-dash-stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--pin-text-light);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-bottom: 0.35rem;
}

.pin-dash-stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--pin-primary);
}

.pin-stat-highlight {
    background: linear-gradient(135deg, var(--pin-primary) 0%, var(--pin-secondary) 100%);
    border: none;
}

.pin-stat-highlight .pin-dash-stat-label,
.pin-stat-highlight .pin-dash-stat-value {
    color: #fff;
}

/* Info bar */
.pin-info-bar {
    background: var(--pin-bg);
    border: 1px solid var(--pin-border);
    border-radius: var(--pin-radius);
    padding: 0.75rem 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

/* ============================================
   Tabs
   ============================================ */
.pin-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--pin-border);
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.pin-tab {
    padding: 0.75rem 1.25rem;
    border: none;
    background: none;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--pin-text-light);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
    transition: all 0.2s;
}

.pin-tab:hover {
    color: var(--pin-primary);
}

.pin-tab.active {
    color: var(--pin-primary);
    border-bottom-color: var(--pin-primary);
}

.pin-tab-content {
    display: none;
}

.pin-tab-content.active {
    display: block;
}

/* ============================================
   Tables
   ============================================ */
.pin-table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

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

.pin-table thead th {
    background: var(--pin-bg);
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--pin-text-light);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.025em;
    border-bottom: 2px solid var(--pin-border);
    white-space: nowrap;
}

.pin-table tbody td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--pin-border);
    vertical-align: middle;
}

.pin-table tbody tr:hover {
    background: var(--pin-bg);
}

/* ============================================
   Badges
   ============================================ */
.pin-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.pin-badge-active,
.pin-badge-completed,
.pin-badge-verified,
.pin-badge-sent,
.pin-badge-confirmed {
    background: #D1FAE5;
    color: #065F46;
}

.pin-badge-pending,
.pin-badge-processing {
    background: #FEF3C7;
    color: #92400E;
}

.pin-badge-inactive,
.pin-badge-cancelled {
    background: #FEE2E2;
    color: #991B1B;
}

/* ============================================
   Salary Breakdown Visual
   ============================================ */
.pin-salary-breakdown {
    margin-bottom: 1.5rem;
}

.pin-breakdown-visual {
    margin-bottom: 1.5rem;
}

.pin-breakdown-bar {
    display: flex;
    border-radius: var(--pin-radius);
    overflow: hidden;
    height: 48px;
    box-shadow: var(--pin-shadow);
}

.pin-breakdown-net {
    background: var(--pin-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
}

.pin-breakdown-tax {
    background: var(--pin-accent);
    color: var(--pin-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
}

/* Tax Impact Card */
.pin-impact-card {
    background: var(--pin-bg);
    border: 1px solid var(--pin-border);
    border-radius: var(--pin-radius-lg);
    padding: 1.5rem;
    text-align: center;
}

.pin-impact-card p {
    margin-bottom: 0.75rem;
}

/* ============================================
   Transparency
   ============================================ */
.pin-transparency-header {
    text-align: center;
    padding: 2rem 0 1rem;
}

.pin-transparency-header h1 {
    font-size: 1.75rem;
    color: var(--pin-primary);
}

.pin-transparency-header p {
    color: var(--pin-text-light);
}

.pin-pool-card {
    background: linear-gradient(135deg, var(--pin-primary) 0%, var(--pin-secondary) 100%);
    color: #fff;
    text-align: center;
    padding: 2rem;
    border-radius: var(--pin-radius-lg);
    box-shadow: var(--pin-shadow-lg);
}

.pin-pool-card h2 {
    color: #fff;
    margin-bottom: 0.5rem;
}

.pin-pool-amount {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
}

.pin-pool-card p {
    opacity: 0.9;
}

/* Distribution Feed */
.pin-feed {
    max-width: 700px;
    margin: 0 auto;
}

.pin-feed-item {
    display: flex;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--pin-border);
}

.pin-feed-dot {
    width: 12px;
    height: 12px;
    min-width: 12px;
    border-radius: 50%;
    background: var(--pin-primary);
    margin-top: 0.35rem;
}

.pin-feed-content {
    font-size: 0.95rem;
    line-height: 1.5;
}

.pin-feed-date {
    display: block;
    font-size: 0.8rem;
    color: var(--pin-text-muted);
    margin-top: 0.25rem;
}

/* ============================================
   Payroll Preview
   ============================================ */
.pin-payroll-preview {
    background: var(--pin-bg);
    border: 1px solid var(--pin-border);
    border-radius: var(--pin-radius-lg);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.pin-payroll-preview h3 {
    margin-bottom: 1rem;
    border: none;
    padding: 0;
}

.pin-summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.pin-summary-item {
    padding: 0.75rem;
    background: var(--pin-bg-white);
    border-radius: var(--pin-radius);
    border: 1px solid var(--pin-border);
}

.pin-summary-label {
    display: block;
    font-size: 0.8rem;
    color: var(--pin-text-light);
    margin-bottom: 0.25rem;
}

.pin-summary-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--pin-primary);
}

.pin-summary-total {
    grid-column: 1 / -1;
    background: var(--pin-primary);
    border-color: var(--pin-primary);
}

.pin-summary-total .pin-summary-label,
.pin-summary-total .pin-summary-value {
    color: #fff;
}

/* ============================================
   Section Header
   ============================================ */
.pin-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.pin-section-header h2 {
    text-align: left;
    margin: 0;
}

/* Add Worker Form */
.pin-add-worker-form {
    background: var(--pin-bg);
    border: 1px solid var(--pin-border);
    border-radius: var(--pin-radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.pin-add-worker-form h3 {
    margin-top: 0;
}

/* AJAX Result */
.pin-ajax-result {
    margin-top: 0.75rem;
    font-size: 0.9rem;
}

.pin-ajax-result.success {
    color: var(--pin-success);
}

.pin-ajax-result.error {
    color: var(--pin-error);
}

/* ============================================
   Utility
   ============================================ */
.pin-text-center {
    text-align: center;
}

.pin-text-green {
    color: var(--pin-success) !important;
}

.pin-text-amber {
    color: var(--pin-accent-dark) !important;
}

.pin-text-muted {
    color: var(--pin-text-muted);
}

/* Loading spinner */
.pin-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--pin-border);
    border-top-color: var(--pin-primary);
    border-radius: 50%;
    animation: pin-spin 0.6s linear infinite;
    vertical-align: middle;
    margin-left: 0.5rem;
}

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

/* ============================================
   Responsive: Tablet
   ============================================ */
@media (min-width: 640px) {
    .pin-form-row {
        grid-template-columns: 1fr 1fr;
    }

    .pin-steps {
        grid-template-columns: repeat(3, 1fr);
    }

    .pin-stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .pin-dash-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .pin-flow {
        flex-direction: row;
        justify-content: center;
    }

    .pin-flow-arrow {
        transform: none;
    }

    .pin-hero h1 {
        font-size: 2.5rem;
    }
}

/* ============================================
   Responsive: Desktop
   ============================================ */
@media (min-width: 1024px) {
    .pin-hero {
        padding: 4rem 2rem;
    }

    .pin-hero h1 {
        font-size: 3rem;
    }

    .pin-form-container {
        padding: 2.5rem;
    }

    .pin-stat-value {
        font-size: 2rem;
    }

    .pin-pool-amount {
        font-size: 3rem;
    }
}

/* ============================================
   Print
   ============================================ */
@media print {
    .pin-btn,
    .pin-tabs,
    .pin-form-actions,
    .pin-dash-actions {
        display: none !important;
    }

    .pin-tab-content {
        display: block !important;
    }
}