:root {
    --bg-color: #F8F9FA;                  /* Clean, soft off-white */
    --panel-bg: rgba(255, 255, 255, 0.75); /* Frosted light glass */
    --card-bg: rgba(255, 255, 255, 0.5);   /* Semi-transparent white card */
    --card-border: rgba(0, 0, 0, 0.06);     /* Ultra-subtle dark border */
    --card-border-hover: rgba(0, 0, 0, 0.15);/* Noticeable but soft hover border */
    --text-primary: #1C1C1E;              /* High-contrast charcoal text */
    --text-secondary: #636366;            /* Mid-tone grey for descriptions */
    --text-muted: #C7C7CC;                /* Light grey for borders & sliders */
    --accent: #F26A21;                    /* Keeps your vibrant signature orange */
    --accent-dim: rgba(242, 106, 33, 0.08);/* Softer dim orange background */
    --radius-lg: 20px;
    --radius-md: 12px;
    --font-main: "Google Sans", sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Glassmorphism base utility */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    /* Soft shadows are essential in light mode to replace dark mode's glows */
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.04); 
}

/* App Layout */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
}

header {
    padding: 30px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.5px;
    text-transform: uppercase;
}
.logo span { color: var(--accent); }

/* Hero */
.hero {
    padding: 100px 0 60px 0;
    max-width: 800px;
}

h1 {
    font-size: clamp(40px, 6vw, 76px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}

.hero p {
    font-size: clamp(18px, 2vw, 22px);
    color: var(--text-secondary);
    font-weight: 400;
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.4;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    background: var(--text-primary); /* Dark button in light mode */
    color: var(--bg-color);          /* Light text inside dark button */
    padding: 16px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: var(--transition-smooth);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12); /* Slightly dark shadow */
}

/* Workspace Core Split */
.workspace {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
    align-items: start;
    padding-bottom: 150px;
}

.configurator {
    display: flex;
    flex-direction: column;
    gap: 90px;
}

section {
    scroll-margin-top: 40px;
}

.step-title {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 12px;
    font-weight: 700;
}

.step-heading {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 30px;
}

/* Card Selectors & Layouts */
.grid-options {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.grid-team {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.selectable-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    user-select: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.selectable-card:hover {
    border-color: var(--card-border-hover);
    background: rgba(0, 0, 0, 0.01);
}

.selectable-card.selected {
    border-color: var(--accent);
    background: rgba(242, 106, 33, 0.04);
}

/* Native Hidden Controls */
.selectable-card input[type="radio"],
.selectable-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.card-icon {
    font-size: 28px;
    margin-bottom: 20px;
    display: inline-block;
}

.card-label {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.card-price-tag {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* Expandable Sub-contents */
.card-details {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-smooth);
    opacity: 0;
}

.selectable-card.selected .card-details {
    max-height: 250px;
    opacity: 1;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(0, 0, 0, 0.05); /* Softer dark border line */
}

.card-details ul {
    list-style: none;
}

.card-details li {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
}

.card-details li::before {
    content: "•";
    color: var(--accent);
    font-weight: bold;
    display: inline-block;
    width: 12px;
}

/* Sliders */
.slider-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--text-muted);
    outline: none;
    margin: 30px 0;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #FFFFFF;              /* Solid white thumb for clean contrast */
    border: 2px solid var(--accent);
    cursor: pointer;
    transition: transform 0.1s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
}

.slider-labels span {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
}

.slider-labels span.active {
    color: var(--accent);
    font-weight: 700;
}

/* Summary Dashboard Panel */
.summary-wrapper {
    position: sticky;
    top: 40px;
}

.summary-card {
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05); /* Added subtle shadow for depth */
}

.summary-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding-bottom: 16px;
}

.summary-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.summary-block-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 600;
}

.summary-manifest {
    max-height: 140px;
    overflow-y: auto;
    font-size: 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-right: 5px;
}

.summary-manifest::-webkit-scrollbar {
    width: 4px;
}
.summary-manifest::-webkit-scrollbar-thumb {
    background: var(--card-border-hover);
    border-radius: 2px;
}

.manifest-item {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
}
.manifest-item span:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

.metrics-comparison {
    background: rgba(0, 0, 0, 0.02); /* Soft grey inside panel */
    border-radius: var(--radius-md);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 14px;
}

.metric-row {
    display: flex;
    justify-content: space-between;
}

.metric-row.savings {
    color: #1A9E00;                  /* Darker green for high contrast readability */
    font-weight: 600;
    border-top: 1px dashed rgba(0, 0, 0, 0.06);
    padding-top: 10px;
    margin-top: 2px;
}

.price-display {
    margin-top: 10px;
}

.price-val {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.price-period {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Lead Capture & Success Screens */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85); /* White overlay instead of black */
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    padding: 20px;
}

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

.modal-window {
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-lg);
    padding: 40px;
    position: relative;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.1); /* Soft heavy drop shadow */
}

.modal-window::-webkit-scrollbar {
    width: 6px;
}
.modal-window::-webkit-scrollbar-thumb {
    background: var(--card-border-hover);
    border-radius: 3px;
}

.close-modal {
    position: absolute;
    top: 25px;
    right: 25px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition-smooth);
}
.close-modal:hover { color: var(--text-primary); }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.full-width { grid-column: span 2; }

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    background: rgba(0, 0, 0, 0.02); /* Soft input backgrounds */
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 14px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 15px;
    transition: var(--transition-smooth);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: #FFFFFF;              /* Swaps to bright white when focused */
}

.checkbox-container {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    user-select: none;
    margin-top: 10px;
}

.checkbox-container input {
    margin-top: 4px;
    accent-color: var(--accent);
}

.btn-submit {
    width: 100%;
    background: var(--accent);
    color: white;
    padding: 16px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16px;
    border: none;
    cursor: pointer;
    margin-top: 20px;
    transition: var(--transition-smooth);
}
.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(242, 106, 33, 0.3);
}

.success-view {
    display: none;
    text-align: center;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 40px 20px;
}

.success-emoji {
    font-size: 64px;
    animation: bounce 1s infinite alternate;
}

@keyframes bounce {
    from { transform: translateY(0); }
    to { transform: translateY(-10px); }
}

/* Responsive Breakpoints */
@media(max-width: 1024px) {
    .workspace {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .summary-wrapper {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        z-index: 500;
        top: auto;
    }
    .summary-card {
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        padding: 20px 40px;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        box-shadow: 0 -10px 40px rgba(0,0,0,0.06); /* Soft shadow for mobile drawer */
    }
    .summary-manifest, .metrics-comparison, .summary-header {
        display: none;
    }
    .price-display { margin-top: 0; }
    .workspace { padding-bottom: 220px; }
}

@media(max-width: 768px) {
    .app-container { padding: 0 20px; }
    .form-grid { grid-template-columns: 1fr; }
    .full-width { grid-column: span 1; }
    .summary-card { padding: 20px; }
    .hero { padding: 60px 0 40px 0; }
}