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

/* --- DESIGN SYSTEM & CSS VARIABLES --- */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f5;
    
    --text-primary: #121212;
    --text-secondary: #4a4a4a;
    --text-muted: #868e96;
    
    --accent-blue: #0066cc;
    --accent-blue-light: #e6f0ff;
    --accent-gold: #c5a059;
    --accent-gold-light: #fdfaf2;
    --accent-red: #fa5252;
    
    --border-color: #e9ecef;
    --border-dark: #ced4da;
    --blueprint-grid: rgba(0, 102, 204, 0.04);
    
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-quick: all 0.2s ease;
    
    --container-max-width: 1280px;
}

/* --- RESET & GLOBAL STYLES --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body {
    background-color: var(--bg-primary);
    /* Drafting blueprint style background pattern */
    background-image: 
        linear-gradient(var(--blueprint-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--blueprint-grid) 1px, transparent 1px),
        linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
    background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
    background-position: center top;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Custom Selection */
::selection {
    background-color: var(--accent-blue-light);
    color: var(--accent-blue);
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: var(--text-primary);
}

p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* --- LAYOUT UTILITIES --- */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 8rem 0;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
}

@media (max-width: 991px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .section-padding {
        padding: 5rem 0;
    }
}

/* --- HEADER & NAVIGATION --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
}

header.scrolled {
    padding: 0.8rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.02);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: var(--transition-smooth);
}

header.scrolled .nav-container {
    height: 64px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    stroke: var(--text-primary);
    stroke-width: 2;
    fill: none;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    text-transform: uppercase;
}

.logo-dot {
    color: var(--accent-blue);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-quick);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-blue);
    transition: var(--transition-quick);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--text-primary);
    color: var(--bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-quick);
    border: 1px solid var(--text-primary);
}

.nav-cta:hover {
    background-color: transparent;
    color: var(--text-primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: var(--transition-quick);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    .menu-toggle {
        display: block;
    }
    .nav-cta {
        display: none;
    }
}

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2rem;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
    gap: 0.75rem;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

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

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    transform: translateY(-2px);
}

/* --- HERO SECTION --- */
.hero {
    position: relative;
    padding: 10rem 0 6rem 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 10;
}

.hero-content {
    max-width: 620px;
    position: relative;
}

/* --- CNC Text Carving Animation CSS --- */
.carvable {
    opacity: 0;
    clip-path: inset(0 100% 0 0); /* Initially fully hidden */
    transition: opacity 0.1s ease;
}

.carvable.carving {
    opacity: 1;
    clip-path: inset(0 var(--clip-percent, 100%) 0 0);
}

.carvable.carved {
    opacity: 1;
    clip-path: inset(0 0 0 0);
    transition: clip-path 0.15s linear, opacity 0.15s ease;
}

/* Absolute text engraving laser head */
.text-laser-head {
    position: absolute;
    width: 40px;
    height: 40px;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 20;
    transform: translate(-50%, -50%);
    display: none;
}

.text-laser-head.active {
    display: block;
}

.laser-crossline-x {
    position: absolute;
    top: 50%;
    left: -100px;
    width: 240px;
    height: 1px;
    background: rgba(250, 82, 82, 0.35);
    pointer-events: none;
}

.laser-crossline-y {
    position: absolute;
    left: 50%;
    top: -100px;
    width: 1px;
    height: 240px;
    background: rgba(250, 82, 82, 0.35);
    pointer-events: none;
}

.text-laser-head .laser-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--accent-red);
    box-shadow: 0 0 10px 4px var(--accent-red), 0 0 20px 8px rgba(250, 82, 82, 0.5);
    transform: translate(-50%, -50%);
    animation: pulse-laser 0.08s infinite alternate;
}

@keyframes pulse-laser {
    from { transform: translate(-50%, -50%) scale(0.9); opacity: 0.8; }
    to { transform: translate(-50%, -50%) scale(1.3); opacity: 1; }
}

/* Ensure button and stats layouts align correctly under block-style reveals */
.hero-actions .carvable {
    display: inline-flex;
}
.hero-stats .carvable {
    display: flex;
}


.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--accent-blue-light);
    color: var(--accent-blue);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid rgba(0, 102, 204, 0.15);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.hero-tag svg {
    width: 14px;
    height: 14px;
    animation: spin 8s linear infinite;
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 700;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

/* CAD Crosshair Cursor Follower */
.cad-follower {
    position: fixed;
    width: 40px;
    height: 40px;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cad-follower::before, .cad-follower::after {
    content: '';
    position: absolute;
    background-color: rgba(0, 102, 204, 0.3);
}

.cad-follower::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
}

.cad-follower::after {
    left: 50%;
    top: 0;
    width: 1px;
    height: 100%;
}

.cad-follower .circle {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    border: 1px solid var(--accent-blue);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.cad-follower .coordinates {
    position: absolute;
    top: 24px;
    left: 24px;
    font-family: monospace;
    font-size: 8px;
    color: var(--accent-blue);
    white-space: nowrap;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 1px 4px;
    border: 1px solid var(--border-color);
}

/* --- HERO VECTOR WORKSPACE (CNC TEXT PATHS) --- */
.hero-visual {
    position: relative;
    width: 100%;
    height: 550px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vector-workspace {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.workspace-border {
    stroke: var(--border-color);
    stroke-width: 1;
    fill: none;
}

.workspace-axis {
    stroke: rgba(0, 0, 0, 0.05);
    stroke-width: 1;
    stroke-dasharray: 4 4;
}

/* CNC Path styling */
.cnc-path-bg {
    stroke: var(--border-color);
    stroke-width: 2;
    fill: none;
}

.cnc-path-animated {
    stroke: var(--accent-blue);
    stroke-width: 2.5;
    fill: none;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    transition: stroke-dashoffset 4s linear;
}

/* Toolhead indicator */
.milling-head {
    fill: var(--bg-primary);
    stroke: var(--accent-blue);
    stroke-width: 2;
}

.milling-laser {
    fill: var(--accent-blue);
    opacity: 0.6;
    animation: pulse 1s infinite alternate;
}

.milling-crosshair {
    stroke: rgba(0, 102, 204, 0.4);
    stroke-dasharray: 2 2;
    stroke-width: 1;
}

/* CNC Outlined Text Path Settings */
.text-on-path {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 9px;
    letter-spacing: 0.1em;
    fill: var(--text-secondary);
    text-transform: uppercase;
}

/* Stats Row */
.hero-stats {
    display: flex;
    gap: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 1199px) {
    .hero-title {
        font-size: 3rem;
    }
    .hero-visual {
        height: 450px;
    }
}

@media (max-width: 991px) {
    .hero {
        padding: 8rem 0 4rem 0;
    }
    .hero-layout {
        grid-template-columns: 1fr;
    }
    .hero-visual {
        order: -1;
        height: 380px;
    }
}

/* --- DYNAMIC CAPABILITIES (BLUEPRINTS) --- */
.section-header {
    max-width: 600px;
    margin-bottom: 5rem;
}

.section-subtitle {
    color: var(--accent-blue);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
    display: block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

@media (max-width: 991px) {
    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
}

.capability-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 6px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.capability-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.03);
    border-color: var(--border-dark);
}

.capability-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--accent-blue);
    transform: scaleY(0);
    transition: var(--transition-smooth);
    transform-origin: bottom;
}

.capability-card:hover::before {
    transform: scaleY(1);
}

.capability-blueprint {
    width: 100%;
    height: 160px;
    background-color: var(--bg-secondary);
    border-radius: 4px;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Blueprint drawing grids inside cards */
.capability-blueprint::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 102, 204, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 102, 204, 0.025) 1px, transparent 1px);
    background-size: 10px 10px;
}

.blueprint-svg {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.blueprint-svg path {
    stroke: var(--text-muted);
    stroke-width: 1.5;
    fill: none;
    transition: var(--transition-smooth);
}

.capability-card:hover .blueprint-svg path {
    stroke: var(--accent-blue);
    stroke-width: 2;
}

.capability-icon-box {
    width: 50px;
    height: 50px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.capability-icon {
    width: 24px;
    height: 24px;
    stroke: var(--text-primary);
    fill: none;
    stroke-width: 2;
}

.capability-card:hover .capability-icon {
    stroke: var(--accent-blue);
}

.capability-title {
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

.capability-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.capability-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-quick);
}

.capability-link svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.capability-card:hover .capability-link {
    color: var(--accent-blue);
}

.capability-card:hover .capability-link svg {
    transform: translateX(4px);
}

/* --- INTERACTIVE CNC WORKBENCH --- */
.workbench-section {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.workbench-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3.5rem;
    align-items: stretch;
}

@media (max-width: 991px) {
    .workbench-layout {
        grid-template-columns: 1fr;
    }
}

.workbench-panel {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.01);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.panel-title {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.panel-title::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-blue);
    animation: flash 1s alternate infinite;
}

.panel-controls {
    display: flex;
    gap: 0.75rem;
}

.ctrl-btn {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-dark);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-heading);
    transition: var(--transition-quick);
}

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

.ctrl-btn-primary {
    background-color: var(--accent-blue);
    color: var(--bg-primary);
    border-color: var(--accent-blue);
}

.ctrl-btn-primary:hover {
    background-color: #0052a3;
    border-color: #0052a3;
}

.canvas-container {
    width: 100%;
    height: 420px;
    position: relative;
    background-color: #ffffff;
    cursor: crosshair;
    overflow: hidden;
}

canvas#cncCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Grid overlay for Canvas */
.canvas-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background-image: 
        linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.panel-footer {
    border-top: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    background-color: var(--bg-secondary);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

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

.telemetry-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
}

.telemetry-value {
    font-family: monospace;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Workbench Info Panel */
.workbench-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.workbench-badge {
    align-self: flex-start;
    background-color: #e6f7ff;
    color: #0050b3;
    border: 1px solid #91d5ff;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.workbench-title {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.workbench-desc {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1rem;
    line-height: 1.7;
}

.instructions-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.instructions-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.instruction-step-num {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* --- DYNAMIC PRICING CALCULATOR --- */
.calculator-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.02);
}

@media (max-width: 768px) {
    .calculator-card {
        padding: 1.5rem;
    }
}

.calculator-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3.5rem;
}

@media (max-width: 991px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.input-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
}

.input-label span.value-display {
    color: var(--accent-blue);
    font-weight: 700;
}

.material-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

@media (max-width: 480px) {
    .material-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.material-btn {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 1rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    transition: var(--transition-quick);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}

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

.material-btn.active {
    border-color: var(--accent-blue);
    background-color: var(--accent-blue-light);
}

.material-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid var(--border-dark);
}

.mat-steel { background-color: #cbd5e1; }
.mat-alum { background-color: #e2e8f0; }
.mat-brass { background-color: #fef08a; }
.mat-titan { background-color: #94a3b8; }
.mat-wood { background-color: #ca8a04; }
.mat-plastic { background-color: #e0f2fe; }

.material-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Range input styling */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--bg-tertiary);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--text-primary);
    border: 2px solid var(--bg-primary);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: var(--transition-quick);
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--accent-blue);
    transform: scale(1.1);
}

.tolerance-options {
    display: flex;
    gap: 1rem;
}

.tolerance-btn {
    flex: 1;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: var(--transition-quick);
}

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

.tolerance-btn.active {
    border-color: var(--accent-blue);
    background-color: var(--accent-blue-light);
    color: var(--accent-blue);
}

/* Calc Results Panel */
.calc-results {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.results-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
}

.results-title {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.price-display {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    display: flex;
    align-items: baseline;
    gap: 0.2rem;
}

.price-currency {
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--accent-blue);
}

.price-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.breakdown-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.breakdown-row span:last-child {
    font-family: monospace;
    font-weight: 600;
    color: var(--text-primary);
}

.breakdown-row.total {
    border-top: 1px dashed var(--border-color);
    padding-top: 1rem;
    font-weight: 700;
}

.breakdown-row.total span {
    color: var(--text-primary);
}

/* --- FOOTER --- */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 5rem 0 3rem 0;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 4rem;
    margin-bottom: 4rem;
}

@media (max-width: 991px) {
    .footer-grid {
        grid-template-columns: 1fr repeat(3, 1fr);
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 320px;
}

.footer-col-title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-link {
    text-decoration: none;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition-quick);
}

.footer-link:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-socials {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    color: var(--text-muted);
    transition: var(--transition-quick);
}

.social-link:hover {
    color: var(--accent-blue);
}

.social-link svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* --- ANIMATIONS --- */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    from { transform: scale(1); opacity: 0.4; }
    to { transform: scale(1.3); opacity: 0.9; }
}

@keyframes flash {
    from { opacity: 0.4; }
    to { opacity: 1; }
}

@keyframes draw {
    to { stroke-dashoffset: 0; }
}