/* style.css */
/* Premium dark-mode design system for the Project Management System */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-canvas: #0b0f19;
    --bg-surface: #131c2e;
    --bg-surface-hover: #1b263f;
    --border-color: #22314d;
    --border-focus: #3b82f6;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --primary: #4f46e5;
    --primary-hover: #6366f1;
    --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --muted: #94a3b8;
    --muted-bg: rgba(148, 163, 184, 0.12);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-canvas);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* App Layout */
.app-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Header & Navigation */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.logo-section h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #f8fafc, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-section p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Dashboard Summary Cards */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.metric-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.4);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    opacity: 0;
    transition: var(--transition);
}

.metric-card:hover::before {
    opacity: 1;
}

.metric-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.metric-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Specific Card Indicator Styles */
.metric-card.received::before { background: var(--success); }
.metric-card.outstanding::before { background: var(--warning); }
.metric-card.active-proj::before { background: var(--info); }

/* Controls Header (Search / Filter / Add Button) */
.controls-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
}

.search-filter-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    flex-grow: 1;
}

.search-input-wrapper {
    position: relative;
    flex-grow: 1;
    max-width: 320px;
}

.input-field {
    width: 100%;
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.875rem;
    transition: var(--transition);
}

.input-field:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

select.input-field {
    cursor: pointer;
    padding-right: 2rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.45);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-surface-hover);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

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

.btn-danger {
    background-color: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

.btn-danger:hover {
    background-color: rgba(239, 68, 68, 0.2);
}

/* Project Cards / List */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: #334155;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition);
}

.project-card:hover .project-title {
    color: #818cf8;
}

.project-client {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: 0.125rem;
}

/* Badge System */
.badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-in-progress { background-color: var(--info-bg); color: var(--info); }
.badge-completed { background-color: var(--success-bg); color: var(--success); }
.badge-planning { background-color: var(--muted-bg); color: var(--muted); }
.badge-on-hold { background-color: var(--warning-bg); color: var(--warning); }
.badge-cancelled { background-color: var(--danger-bg); color: var(--danger); }

/* Project Card Body / Info */
.project-card-body {
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.project-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.625rem;
}

.project-dates {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    border-top: 1px solid var(--border-color);
    padding-top: 0.75rem;
}

/* Progress Section */
.financial-summary {
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
    margin-bottom: 0.375rem;
}

.progress-container {
    width: 100%;
    height: 6px;
    background-color: var(--bg-canvas);
    border-radius: 9999px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 100%;
    border-radius: 9999px;
    background-color: var(--primary);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-bar.fully-paid {
    background-color: var(--success);
}

.financial-breakdown {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.financial-breakdown span strong {
    color: var(--text-secondary);
}

.project-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    margin-top: auto;
}

.days-remaining {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Detail View Layout */
.detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 900px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }
}

.detail-main, .detail-sidebar {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.detail-title-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.detail-meta-row {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    background-color: var(--bg-canvas);
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.meta-item {
    display: flex;
    flex-direction: column;
}

.meta-item-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.meta-item-value {
    font-size: 0.9375rem;
    font-weight: 600;
}

.detail-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.notes-box {
    background-color: var(--bg-canvas);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
}

/* Payments Ledger & Table */
.payments-section {
    margin-top: 1.5rem;
}

.payment-table-wrapper {
    overflow-x: auto;
    margin-top: 1rem;
}

.payments-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    text-align: left;
}

.payments-table th {
    background-color: var(--bg-canvas);
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
}

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

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

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

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 2.5rem;
    font-size: 0.9375rem;
}

/* Forms & Modal */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

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

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

/* Modal Overlay Styling */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 540px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transform: translateY(20px);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.75rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

/* Custom Tooltips / Indicators */
.financial-gauge {
    margin-bottom: 2rem;
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: var(--radius-md);
}

.gauge-title {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.gauge-total {
    font-size: 1.5rem;
    font-weight: 700;
}

.gauge-received {
    color: var(--success);
}