/* PS Ink - Clean Modern Light Theme */
/* Tailwind-inspired. White/Gray/Blue. No bullshit. */

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-hover: #e5e7eb;
    
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-light: #eff6ff;
    
    --border: #e5e7eb;
    --border-dark: #d1d5db;
    
    --success: #059669;
    --success-bg: #ecfdf5;
    --warning: #d97706;
    --warning-bg: #fffbeb;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
    --info: #2563eb;
    --info-bg: #eff6ff;
    
    --radius: 6px;
    --transition: 0.15s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 64px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.nav-logo {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--accent);
    background: var(--accent-light);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-username {
    color: var(--text-secondary);
    font-size: 14px;
}

.nav-logout-form {
    display: inline;
}

.nav-logout-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius);
    transition: color var(--transition), background var(--transition);
}

.nav-logout-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Main Content */
.main {
    padding: 32px;
    max-width: 1400px;
    margin: 0 auto;
}

.main-full {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    background: var(--bg-secondary);
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-color: var(--border-dark);
}

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

.btn-danger {
    background: var(--bg-primary);
    color: var(--danger);
    border-color: var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: #ffffff;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 12px;
    font-size: 15px;
    font-family: inherit;
    background: var(--bg-primary);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius);
    color: var(--text-primary);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-select {
    padding-right: 36px;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-help {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 6px;
}

.form-help a {
    color: var(--accent);
    text-decoration: none;
}

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

.form-error {
    font-size: 13px;
    color: var(--danger);
    margin-top: 6px;
}

/* Tables */
.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
}

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

.table td {
    font-size: 14px;
}

.table td a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.table td a:hover {
    text-decoration: underline;
}

.table-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 9999px;
    text-transform: capitalize;
}

.badge-draft {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.badge-sent {
    background: var(--info-bg);
    color: var(--info);
}

.badge-approved {
    background: var(--success-bg);
    color: var(--success);
}

.badge-declined {
    background: var(--danger-bg);
    color: var(--danger);
}

.badge-pending {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge-paid {
    background: var(--success-bg);
    color: var(--success);
}

.badge-invoiced {
    background: var(--info-bg);
    color: var(--info);
}

.badge-partial {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge-overdue {
    background: var(--danger-bg);
    color: var(--danger);
}

.paid-stamp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--success);
    background: var(--success-bg);
    border: 2px solid var(--success);
    border-radius: var(--radius);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.stat-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-value-sm {
    font-size: 22px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.empty-state-text {
    font-size: 14px;
    margin-bottom: 20px;
}

/* Messages */
.messages {
    margin-bottom: 24px;
}

.message {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 12px;
}

.message-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(5, 150, 105, 0.2);
}

.message-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.message-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(217, 119, 6, 0.2);
}

.message-info {
    background: var(--info-bg);
    color: var(--info);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.message-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 20px;
    cursor: pointer;
    opacity: 0.6;
    padding: 0;
    line-height: 1;
}

.message-close:hover {
    opacity: 1;
}

/* Login Page */
.login-container {
    width: 100%;
    max-width: 400px;
}

.login-logo {
    display: block;
    width: 100px;
    height: auto;
    margin: 0 auto 24px;
}

.login-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

.login-title {
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 24px;
}

/* Line Items */
.line-items {
    margin-bottom: 24px;
}

.line-item {
    display: grid;
    grid-template-columns: 2fr 2fr 100px 120px 120px 40px;
    gap: 12px;
    align-items: start;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.line-item:first-child {
    padding-top: 0;
}

.line-item-header {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.line-item-total {
    padding-top: 10px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.line-item-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    font-size: 18px;
    line-height: 1;
    border-radius: var(--radius);
    transition: color var(--transition), background var(--transition);
}

.line-item-remove:hover {
    color: var(--danger);
    background: var(--danger-bg);
}

/* Quote Totals */
.quote-totals {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    padding: 20px 0;
    border-top: 1px solid var(--border);
}

.quote-total-row {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    font-size: 14px;
    color: var(--text-secondary);
}

.quote-total-row span:last-child {
    font-weight: 500;
    color: var(--text-primary);
}

.quote-total-row.grand-total {
    font-size: 18px;
    font-weight: 600;
    padding-top: 12px;
    margin-top: 4px;
    border-top: 2px solid var(--border);
}

.quote-total-row.grand-total span {
    color: var(--text-primary);
}

/* Utility Classes */
.text-right {
    text-align: right;
}

.text-center {
    text-align: center;
}

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

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--danger);
}

.text-sm {
    font-size: 13px;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.flex {
    display: flex;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }

/* Responsive */
@media (max-width: 768px) {
    .nav {
        padding: 0 16px;
        flex-wrap: wrap;
        height: auto;
        padding: 12px 16px;
    }
    
    .nav-links {
        order: 3;
        width: 100%;
        margin-top: 12px;
        justify-content: center;
    }
    
    .main {
        padding: 20px 16px;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .line-item {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .line-item-header {
        display: none;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Touch friendly for tablet */
@media (pointer: coarse) {
    .btn {
        min-height: 44px;
        padding: 12px 20px;
    }
    
    .form-input,
    .form-select,
    .form-textarea {
        min-height: 44px;
        font-size: 16px;
    }
    
    .nav-link {
        padding: 12px 16px;
    }
    
    .table td,
    .table th {
        padding: 14px 16px;
    }
}

/* Link colors - prevent purple visited */
a:not(.btn) {
    color: var(--accent);
    text-decoration: none;
}

a:visited:not(.btn) {
    color: var(--accent);
}

a:hover:not(.btn) {
    text-decoration: underline;
}

/* Badge signed - same as approved */
.badge-signed {
    background: var(--success-bg);
    color: var(--success);
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .nav,
    .btn,
    .message {
        display: none !important;
    }
    
    .main {
        padding: 0;
        max-width: none;
    }
    
    .card {
        border: 1px solid #ddd;
        background: white;
    }
}