/* ============================================
   Project Roadmap Tracker - Light Professional Theme
   ============================================ */

/* CSS Variables */
:root {
    /* Color Palette - Clean Professional Light */
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #ffffff;
    --bg-sidebar: #ffffff;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --accent-primary: #2563eb;
    --accent-primary-light: #eff6ff;
    --accent-secondary: #7c3aed;
    
    --success: #059669;
    --success-light: #ecfdf5;
    --warning: #d97706;
    --warning-light: #fffbeb;
    --danger: #dc2626;
    --danger-light: #fef2f2;
    --info: #0284c7;
    --info-light: #f0f9ff;
    
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Spacing */
    --sidebar-width: 250px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
}

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

html {
    font-size: 16px;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   Layout
   ============================================ */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo-icon {
    width: 42px !important;
    height: 42px !important;
    background: #f1f5f9 !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 10px !important;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.logo-icon:hover {
    transform: scale(1.03);
    border-color: #cbd5e1;
}

.logo-icon svg {
    width: 32px;
    height: 32px;
}

.logo-text {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

/* Navigation */
.nav-menu {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.nav-item svg {
    width: 20px;
    height: 20px;
}

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

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

/* User Info */
.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 38px;
    height: 38px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: white;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px 40px;
    max-width: 1200px;
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
    gap: 24px;
}

.header-content h1 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.header-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.header-stats {
    display: flex;
    gap: 12px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 110px;
    box-shadow: var(--shadow-sm);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.stat-card.accent {
    background: var(--warning-light);
    border-color: transparent;
}

.stat-card.accent .stat-value {
    color: var(--warning);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 2px;
}

/* ============================================
   Projects Grid
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
}

.project-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 14px;
}

.project-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-icon svg {
    width: 22px;
    height: 22px;
}

.project-icon.chat {
    background: #dbeafe;
    color: #2563eb;
}

.project-icon.ecommerce {
    background: #d1fae5;
    color: #059669;
}

.project-icon.dashboard {
    background: #f3e8ff;
    color: #9333ea;
}

/* New icon colors */
.project-icon.ai {
    background: #fce7f3;
    color: #db2777;
}

.project-icon.ads {
    background: #ffedd5;
    color: #ea580c;
}

.project-icon.finance {
    background: #dcfce7;
    color: #16a34a;
}

.project-icon.team {
    background: #e0e7ff;
    color: #4f46e5;
}

.project-icon.connect {
    background: #cffafe;
    color: #0891b2;
}

.project-icon.analytics {
    background: #fef3c7;
    color: #d97706;
}

.project-icon.mobile {
    background: #ede9fe;
    color: #7c3aed;
}

.project-icon.api {
    background: #f1f5f9;
    color: #475569;
}

.project-icon.cloud {
    background: #dbeafe;
    color: #3b82f6;
}

.project-icon.security {
    background: #fee2e2;
    color: #dc2626;
}

.project-icon.default {
    background: #f3f4f6;
    color: #6b7280;
}

.project-status {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.project-status.in-progress {
    background: var(--info-light);
    color: var(--info);
}

.project-status.blocked {
    background: var(--danger-light);
    color: var(--danger);
}

.project-status.new {
    background: #f3e8ff;
    color: var(--accent-secondary);
}

.project-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.project-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.5;
}

/* Progress Bar */
.project-progress {
    margin-bottom: 16px;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.progress-percent {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-primary);
}

.progress-bar {
    height: 6px;
    background: var(--border-light);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar .progress-fill {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 3px;
}

.progress-bar.blocked .progress-fill {
    background: var(--danger);
}

/* Project Footer */
.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--border-light);
}

.milestone-preview {
    display: flex;
    gap: 5px;
}

.milestone-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
}

.milestone-dot.completed {
    background: var(--success);
}

.milestone-dot.current {
    background: var(--accent-primary);
}

.milestone-dot.blocked {
    background: var(--danger);
}

.project-deadline {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.project-deadline svg {
    width: 14px;
    height: 14px;
}

.project-deadline.warning {
    color: var(--warning);
}

/* PM Display on Card */
.pm-display {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-top: 14px;
    border-top: 1px solid var(--border-light);
    margin-top: 14px;
}

.pm-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.pm-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
}

.pm-name.unassigned {
    color: var(--text-muted);
    font-style: italic;
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.85rem;
}

.breadcrumb a {
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--accent-primary);
}

.breadcrumb-separator {
    color: var(--text-muted);
    display: flex;
    align-items: center;
}

.breadcrumb-separator svg {
    width: 14px;
    height: 14px;
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

/* ============================================
   Project Header
   ============================================ */
.project-header {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.project-header-top {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.project-header-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.project-header-icon svg {
    width: 28px;
    height: 28px;
}

.project-header-icon.chat {
    background: var(--accent-primary-light);
    color: var(--accent-primary);
}

.project-header-info {
    flex: 1;
}

.project-header-info h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.project-header-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.project-header-status {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.project-header-status.in-progress {
    background: var(--info-light);
    color: var(--info);
}

.project-meta {
    display: flex;
    gap: 28px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.meta-item svg {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

.meta-item strong {
    color: var(--text-primary);
    font-weight: 500;
}

/* ============================================
   Roadmap
   ============================================ */
.roadmap-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.roadmap-container {
    padding: 16px 0;
}

.roadmap {
    display: flex;
    flex-direction: column;
}

/* Milestone */
.milestone {
    display: flex;
    gap: 20px;
    position: relative;
}

.milestone-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    width: 40px;
}

.node-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.node-circle svg {
    width: 18px;
    height: 18px;
}

.node-connector {
    width: 2px;
    flex: 1;
    min-height: 32px;
    background: var(--border-color);
}

.milestone:last-child .node-connector {
    display: none;
}

/* Milestone States */
.milestone.completed .node-circle {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

.milestone.completed .node-connector {
    background: var(--success);
}

.milestone.in-progress .node-circle {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.milestone.blocked .node-circle {
    background: var(--danger);
    border-color: var(--danger);
    color: white;
}

/* Pulse Animation for In Progress */
.pulse-ring {
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
}

/* Milestone Content */
.milestone-content {
    flex: 1;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
}

.milestone.in-progress .milestone-content {
    border-color: var(--accent-primary);
    background: var(--accent-primary-light);
}

.milestone.completed .milestone-content {
    opacity: 0.8;
}

.milestone-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.milestone-number {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    background: var(--border-light);
    padding: 3px 8px;
    border-radius: 4px;
}

.milestone-status-badge {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.milestone-status-badge.completed {
    background: var(--success-light);
    color: var(--success);
}

.milestone-status-badge.in-progress {
    background: var(--accent-primary-light);
    color: var(--accent-primary);
}

.milestone-status-badge.pending {
    background: var(--border-light);
    color: var(--text-muted);
}

.milestone-status-badge.blocked {
    background: var(--danger-light);
    color: var(--danger);
}

.milestone-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.milestone-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
    line-height: 1.5;
}

.milestone-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.milestone-date {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.milestone-date svg {
    width: 14px;
    height: 14px;
}

.milestone-date.due-soon {
    color: var(--warning);
}

.due-badge {
    background: var(--warning-light);
    color: var(--warning);
    font-size: 0.65rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
}

.completion-date {
    font-size: 0.75rem;
    color: var(--success);
}

/* Milestone Notes */
.milestone-notes {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-top: 14px;
}

.note {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.note-icon {
    font-size: 0.9rem;
}

/* Milestone Actions */
.milestone-actions {
    display: flex;
    gap: 10px;
    margin-top: 14px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.btn svg {
    width: 14px;
    height: 14px;
}

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

.btn-primary:hover {
    background: #1d4ed8;
}

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

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

.btn-danger {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid transparent;
}

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

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.modal-close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: var(--transition-fast);
}

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

.modal-close svg {
    width: 16px;
    height: 16px;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 20px;
    border-top: 1px solid var(--border-color);
}

/* Form Elements */
.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group label .required {
    color: var(--danger);
    margin-left: 2px;
}

.form-group textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    resize: vertical;
    transition: var(--transition-fast);
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1100px) {
    .main-content {
        padding: 24px 28px;
    }
    
    .page-header {
        flex-direction: column;
        gap: 20px;
    }
    
    .header-stats {
        width: 100%;
    }
}

@media (max-width: 800px) {
    .sidebar {
        display: flex;
    }
    
    .main-content {
        margin-left: 0;
        padding-top: 76px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-meta {
        flex-direction: column;
        gap: 12px;
    }
    
    .header-stats {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .stat-card {
        min-width: calc(50% - 4px);
        flex: 1;
    }
    
    .page-header {
        margin-bottom: 20px;
    }
    
    .header-content h1 {
        font-size: 1.4rem;
    }
}

@media (max-width: 500px) {
    .main-content {
        padding: 16px;
    }
    
    .milestone {
        gap: 14px;
    }
    
    .milestone-node {
        width: 32px;
    }
    
    .node-circle {
        width: 32px;
        height: 32px;
    }
    
    .milestone-content {
        padding: 14px;
    }
    
    .milestone-actions {
        flex-direction: column;
    }
}