@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

/* --- CRITICAL LAYOUT STRUCTURE --- */
body {
    display: flex !important;
    min-height: 100vh;
    overflow-x: hidden;
    background-color: var(--bg-pastel) !important;
    margin: 0;
}

#sidebar {
    min-width: 250px;
    max-width: 250px;
    height: 100vh;
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

#content {
    flex-grow: 1;
    padding: 2rem;
    min-width: 0;
}

/* Mobile layout handled at end of file via off-canvas sidebar */

:root {
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --bg-pastel: #f7f9f7;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f0f2ef;
  --primary-olive: #5e7153;
  --primary-hover: #4a5c41;
  --primary-light: #8a9b7c;
  --primary-lighter: #d4e0d4;
  --text-main: #1f2937;
  --text-muted: #6b7280;
  --text-light: #767f8a; /* bumped from #9ca3af — WCAG AA contrast on white */
  --border-color: #e5e7eb;
  --border-color-light: #f3f4f6;
  --border-radius-lg: 16px;
  --border-radius-md: 12px;
  --border-radius-sm: 8px;
  --shadow-soft: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --shadow-elevated: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 20px 25px -5px rgba(94, 113, 83, 0.08), 0 10px 10px -5px rgba(94, 113, 83, 0.04);
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
}

body {
  background-color: var(--bg-pastel);
  font-family: var(--font-body);
  color: var(--text-main);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.card {
  border: none !important;
  border-radius: var(--border-radius-lg) !important;
  box-shadow: var(--shadow-soft) !important;
  background-color: var(--bg-surface) !important;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-card-hover) !important;
  transform: translateY(-4px);
}

.card-body {
  padding: 1.5rem;
}

.btn-primary {
  background-color: var(--primary-olive) !important;
  border: none !important;
  color: #ffffff !important;
  border-radius: var(--border-radius-sm) !important;
  padding: 0.5rem 1.25rem;
  font-weight: 500;
  font-family: var(--font-body);
  transition: all var(--transition-base) !important;
  box-shadow: 0 2px 4px rgba(94, 113, 83, 0.2);
}

.btn-primary:hover {
  background-color: var(--primary-hover) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(94, 113, 83, 0.3) !important;
}

.btn-primary:focus,
.btn-primary.focus {
  background-color: var(--primary-olive) !important;
  box-shadow: 0 0 0 0.25rem rgba(94, 113, 83, 0.25) !important;
}

.btn-outline-primary {
  color: var(--primary-olive) !important;
  border-color: var(--primary-olive) !important;
  background-color: transparent !important;
  border-radius: var(--border-radius-sm) !important;
  padding: 0.5rem 1.25rem;
  font-weight: 500;
  font-family: var(--font-body);
  transition: all var(--transition-base) !important;
}

.btn-outline-primary:hover {
  background-color: var(--primary-olive) !important;
  border-color: var(--primary-olive) !important;
  color: #ffffff !important;
  transform: translateY(-1px);
}

.bg-primary {
  background-color: var(--primary-olive) !important;
}

.text-primary {
  color: var(--primary-olive) !important;
}

.form-control {
  border: 1px solid var(--border-color) !important;
  border-radius: var(--border-radius-sm) !important;
  padding: 0.5rem 0.75rem !important;
  font-family: var(--font-body) !important;
  font-size: 0.875rem !important;
  background-color: var(--bg-surface) !important;
}

.form-control:focus {
  border-color: var(--primary-olive) !important;
  box-shadow: 0 0 0 0.25rem rgba(94, 113, 83, 0.15) !important;
}

.form-select {
  border: 1px solid var(--border-color) !important;
  border-radius: var(--border-radius-sm) !important;
  padding: 0.5rem 0.75rem !important;
  font-family: var(--font-body) !important;
  font-size: 0.875rem !important;
  background-color: var(--bg-surface) !important;
}

.form-select:focus {
  border-color: var(--primary-olive) !important;
  box-shadow: 0 0 0 0.25rem rgba(94, 113, 83, 0.15) !important;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.01em;
}

.form-range {
  accent-color: var(--primary-olive);
}

.table-hover tbody tr:hover {
  background-color: var(--primary-lighter) !important;
}

/* Table design system */
.table thead tr th {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.625rem 0.875rem;
  border-bottom: 1px solid var(--border-color) !important;
  background-color: var(--bg-surface) !important;
}

.table tbody tr td {
  font-size: 0.8125rem;
  color: var(--text-main);
  padding: 0.625rem 0.875rem;
  border-bottom: 1px solid var(--border-color-light) !important;
  vertical-align: middle;
}

/* Table action icon buttons */
.btn-icon-table {
  padding: 5px 8px !important;
  font-size: 0.8rem !important;
  line-height: 1 !important;
  border-radius: 6px !important;
  transition: all var(--transition-fast) !important;
}

.btn-icon-table:hover {
  border-color: var(--primary-olive) !important;
  color: var(--primary-olive) !important;
}

.btn-outline-danger.btn-icon-table:hover {
  border-color: #dc3545 !important;
  color: #dc3545 !important;
  background-color: #fee2e2 !important;
}

.btn-outline-info.btn-icon-table:hover {
  border-color: #0dcaf0 !important;
  color: #0dcaf0 !important;
}

/* --- STRICT SIDEBAR STYLING --- */
#sidebar {
    background-color: #5e7153 !important;
    border-right: none !important;
}

#sidebar .sidebar-header {
    background-color: rgba(0, 0, 0, 0.15) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
    padding: 0.75rem 1rem 0.5rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

#sidebar .sidebar-header h4 {
    color: #ffffff !important;
}
#sidebar .sidebar-header small {
    color: rgba(255, 255, 255, 0.9) !important; /* was 0.7 — WCAG AA fix */
}

/* Project selector dropdown button (on dark sidebar) */
#sidebar .btn-dropdown {
    color: rgba(255, 255, 255, 0.8) !important;
    background: rgba(0, 0, 0, 0.12) !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    border-radius: var(--border-radius-sm) !important;
    font-size: 0.8rem;
    font-weight: 500;
}

#sidebar .btn-dropdown:hover,
#sidebar .btn-dropdown:focus {
    background: rgba(0, 0, 0, 0.2) !important;
    color: #ffffff !important;
}

#sidebar .btn-dropdown i {
    color: rgba(255, 255, 255, 0.6) !important;
}

/* Sidebar nav links */
#sidebar .nav-link {
    color: rgba(255, 255, 255, 0.93) !important; /* was 0.8 — WCAG AA fix */
    font-weight: 500 !important;
    font-size: 0.875rem;
    display: flex !important;
    align-items: center !important;
    gap: 0.625rem !important;
    padding: 0.5rem 1rem !important;
    border-radius: 8px;
    transition: all 0.2s ease-in-out !important;
}

#sidebar .nav-link i {
    color: rgba(255, 255, 255, 0.93) !important; /* was 0.8 — WCAG AA fix */
    font-size: 1rem;
    flex-shrink: 0;
}

#sidebar .nav-link:hover {
    color: #ffffff !important;
    background-color: rgba(255, 255, 255, 0.15) !important;
}
#sidebar .nav-link:hover i {
    color: #ffffff !important;
}

#sidebar .nav-link.active {
    background-color: #ffffff !important;
    color: #5e7153 !important;
    font-weight: 700 !important;
    border-radius: 8px !important;
    margin: 0 8px !important;
}
#sidebar .nav-link.active i {
    color: #5e7153 !important;
}

#sidebar .btn-outline-secondary {
    color: #ffffff !important;
    border-color: rgba(255, 255, 255, 0.4) !important;
}
#sidebar .btn-outline-secondary:hover {
    background-color: #ffffff !important;
    color: #5e7153 !important;
    border-color: #ffffff !important;
}

/* ─────────────────────────────────────────────────────────────────────────────
   SIDEBAR FOOTER LINKS  (moved from inline styles → WCAG-compliant classes)
───────────────────────────────────────────────────────────────────────────── */
.sidebar-footer-link {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.9) !important; /* was 0.5 — WCAG AA fix */
    text-decoration: none !important;
    transition: color var(--transition-fast);
}
.sidebar-footer-link:hover,
.sidebar-footer-link:focus-visible {
    color: #ffffff !important;
}
.sidebar-footer-copy {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.65); /* decorative, contrast exception acceptable */
    margin-top: 0.5rem;
}

/* ─────────────────────────────────────────────────────────────────────────────
   MOBILE TOP NAVBAR
───────────────────────────────────────────────────────────────────────────── */
#mobile-topbar {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background-color: var(--primary-olive);
    z-index: 1035;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

#hamburger-btn {
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}
#hamburger-btn:hover {
    background: rgba(255, 255, 255, 0.18);
}

/* ─────────────────────────────────────────────────────────────────────────────
   SIDEBAR OVERLAY  (full-screen scrim, mobile only)
───────────────────────────────────────────────────────────────────────────── */
#sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1040;
    opacity: 0;
    transition: opacity 0.28s ease;
}
#sidebar-overlay.visible {
    opacity: 1;
}

/* ─────────────────────────────────────────────────────────────────────────────
   SIDEBAR CLOSE BUTTON  (X button inside sidebar, mobile only)
───────────────────────────────────────────────────────────────────────────── */
#sidebar-close-btn {
    display: none;
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 2;
    background: rgba(255, 255, 255, 0.12);
    border: none;
    color: #ffffff;
    font-size: 1rem;
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}
#sidebar-close-btn:hover {
    background: rgba(255, 255, 255, 0.28);
}

/* Prevent background scroll when sidebar is open */
body.sidebar-is-open {
    overflow: hidden;
}

/* ─────────────────────────────────────────────────────────────────────────────
   RESPONSIVE BREAKPOINTS  (off-canvas + content padding)
───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 767.98px) {
    #mobile-topbar {
        display: flex;
    }

    /* Off-canvas sidebar slides in from the left */
    #sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        min-width: 272px;
        max-width: 272px;
        z-index: 1045;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }
    #sidebar.sidebar-open {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
    }

    /* Close button needs position:relative on its parent */
    #sidebar .sidebar-header {
        position: relative;
    }
    #sidebar-close-btn {
        display: flex;
    }

    /* Main content: clear fixed topbar + breathing room for mobile browser bars */
    #content {
        padding: 1rem;
        padding-top: calc(56px + 1.25rem);
        padding-bottom: 5rem;
    }

    /* Single-column summary grids on mobile */
    .row.g-3 > [class*="col-md"],
    .row.g-4 > [class*="col-md"] {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

@media (min-width: 768px) {
    #mobile-topbar   { display: none !important; }
    #sidebar-overlay { display: none !important; }
    #sidebar-close-btn { display: none !important; }
}

/* ─────────────────────────────────────────────────────────────────────────────
   FOCUS-VISIBLE  (keyboard navigation — WCAG 2.1 AA)
───────────────────────────────────────────────────────────────────────────── */
:focus-visible {
    outline: 2px solid var(--primary-olive) !important;
    outline-offset: 3px !important;
    border-radius: 3px;
}

/* Form controls keep the inset ring (more intuitive inside inputs) */
.form-control:focus-visible,
.form-select:focus-visible {
    outline: none !important;
    box-shadow: 0 0 0 0.25rem rgba(94, 113, 83, 0.28) !important;
    border-color: var(--primary-olive) !important;
}

/* On dark backgrounds, use a white ring */
#hamburger-btn:focus-visible,
#sidebar-close-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.92) !important;
    outline-offset: 2px !important;
}

/* ─────────────────────────────────────────────────────────────────────────────
   MICRO-INTERACTIONS  (transitions on every interactive surface)
───────────────────────────────────────────────────────────────────────────── */

/* Table rows */
.table tbody tr {
    transition: background-color var(--transition-fast);
}

/* Links */
a {
    transition: color var(--transition-fast), opacity var(--transition-fast);
}

/* Sidebar nav link — lift on hover for tactile feel */
#sidebar .nav-link:hover {
    transform: translateX(3px);
}
#sidebar .nav-link.active {
    transform: none !important; /* active item stays static */
}

/* ─────────────────────────────────────────────────────────────────────────────
   MODAL ENTRANCE  (subtle Y-slide instead of Bootstrap's default -50px drop)
───────────────────────────────────────────────────────────────────────────── */
.modal.fade .modal-dialog {
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(-10px) scale(0.985);
}
.modal.fade.show .modal-dialog {
    transform: translateY(0) scale(1);
}

/* ─────────────────────────────────────────────────────────────────────────────
   COST TILE CARDS  (CSS hover instead of inline onmouseover/onmouseout)
───────────────────────────────────────────────────────────────────────────── */
.cost-tile {
    cursor: pointer;
    transition: transform var(--transition-base), box-shadow var(--transition-base) !important;
}
.cost-tile:hover {
    transform: scale(1.025) translateY(-3px) !important;
    box-shadow: var(--shadow-elevated) !important;
}