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

:root {
    --bg-dark: #0a0e1a;
    --bg-card: rgba(16, 22, 42, 0.7);
    --bg-card-hover: rgba(22, 30, 58, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(99, 102, 241, 0.4);

    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --primary: #6366f1; /* Indigo */
    --primary-glow: rgba(99, 102, 241, 0.15);
    --secondary: #10b981; /* Emerald */
    --secondary-glow: rgba(16, 185, 129, 0.15);

    --accent-orange: #f59e0b; /* Amber */
    --accent-red: #ef4444; /* Red */

    --font-sans: "Outfit", sans-serif;
    --shadow-main: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.2);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        radial-gradient(
            circle at 10% 20%,
            rgba(99, 102, 241, 0.15) 0%,
            transparent 40%
        ),
        radial-gradient(
            circle at 90% 80%,
            rgba(16, 185, 129, 0.12) 0%,
            transparent 45%
        );
    background-attachment: fixed;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: #1f2937;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #374151;
}

/* Layout */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 1.5rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-main);
}

.logo-section h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #a5b4fc, #6366f1, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-section span {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    margin-left: 0.5rem;
    text-transform: uppercase;
}

.header-meta {
    text-align: right;
}

.header-meta p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.header-meta strong {
    color: var(--primary);
}

/* Tabs Navigation */
.tabs-nav {
    display: flex;
    gap: 1rem;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: var(--text-primary);
    background: var(--primary);
    box-shadow: var(--shadow-glow);
    border: 1px solid var(--primary);
}

/* Main Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* KPI Cards */
.kpi-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-main);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    opacity: 0.7;
}

.kpi-card.kpi-secondary::before {
    background: var(--secondary);
}

.kpi-card.kpi-alert::before {
    background: var(--accent-red);
}

.kpi-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 0 12px 40px 0 rgba(99, 102, 241, 0.15);
}

.kpi-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    background: linear-gradient(135deg, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.trend-up {
    color: var(--secondary);
    font-weight: 600;
}

.trend-down {
    color: var(--accent-red);
    font-weight: 600;
}

/* Visual Layout Columns */
.layout-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.layout-row-equal {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.layout-full {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Cards containing graphs or tables */
.visual-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-main);
    position: relative;
}

.visual-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.visual-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.visual-card-title i {
    color: var(--primary);
}

.card-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Form inputs & Select dropdowns */
select,
input,
textarea {
    background: rgba(17, 24, 39, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 0.6rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: all 0.3s ease;
    width: 100%;
}

select:focus,
input:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

/* Interactive tables */
.table-container {
    overflow-x: auto;
    max-height: 400px;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    padding: 0.85rem 1rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

td {
    padding: 0.85rem 1rem;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
}

.badge-high {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-medium {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-orange);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-low {
    background: rgba(16, 185, 129, 0.15);
    color: var(--secondary);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-stable {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Prediction Form View */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary), #4f46e5);
    color: var(--text-primary);
    border: none;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    padding: 0.8rem 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

/* Prediction Results Display */
.prediction-results-card {
    background: rgba(10, 14, 26, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    transition: all 0.4s ease;
}

.prediction-results-card.danger {
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.03);
}

.prediction-results-card.success {
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.03);
}

.result-meter-container {
    position: relative;
    width: 140px;
    height: 140px;
    margin-bottom: 1.5rem;
}

.result-meter-svg {
    transform: rotate(-90deg);
}

.meter-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.05);
    stroke-width: 10;
}

.meter-fill {
    fill: none;
    stroke: var(--primary);
    stroke-width: 10;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.8s ease;
}

.danger .meter-fill {
    stroke: var(--accent-red);
}

.success .meter-fill {
    stroke: var(--secondary);
}

.result-meter-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    font-weight: 700;
}

.result-badge {
    margin-bottom: 1rem;
}

.result-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.result-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Tab panes toggling */
.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition:
        opacity 0.5s ease,
        visibility 0.5s ease;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.05);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

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

/* ROI Grid Styling */
.roi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.roi-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.roi-item-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.roi-item-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.roi-item-value.success {
    color: var(--secondary);
}

/* Strategic Recommendations Detail Panel */
.strat-rec-item {
    border-left: 3px solid var(--primary);
    background: rgba(255, 255, 255, 0.01);
    padding: 1rem;
    border-radius: 0 8px 8px 0;
    margin-bottom: 1rem;
    border-top: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.strat-rec-item.risk-High {
    border-left-color: var(--accent-red);
}

.strat-rec-item.risk-Medium {
    border-left-color: var(--accent-orange);
}

.strat-rec-item.risk-Low {
    border-left-color: var(--secondary);
}

.strat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.strat-title {
    font-weight: 600;
    font-size: 0.95rem;
}

.strat-body {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.strat-rationale {
    font-size: 0.75rem;
    font-style: italic;
    color: var(--text-muted);
}