/* globaltonecare.com - Swiss Precision Tone Analysis */
/* Color Palette:
   Swiss White: #FAFAF6 (primary bg)
   Earth Stone: #8A8070 (card bg alternating)
   Soil Dark: #5A5040 (primary text, circuit traces, rules)
   Clay Warm: #B87850 (primary accent)
   Moss Subtle: #6A8060 (secondary accent)
   Sand Light: #F0E8D8 (alt card bg, hover)
   Iron Gray: #3A3830 (display headings)
   Chalk Mist: #F5F2EC (secondary bg)
*/

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Work Sans', sans-serif;
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.7;
    color: #5A5040;
    background-color: #FAFAF6;
    overflow-x: hidden;
    position: relative;
}

/* Grid Container - 12 column Swiss grid */
.grid-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}

/* Grid Overlay - Visible Swiss Grid Lines */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1200px;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    display: flex;
    gap: 0;
    padding: 0 24px;
    opacity: 0;
    transition: opacity 1s ease;
}

.grid-overlay .grid-line {
    flex: 1;
    border-right: 0.5px solid rgba(138, 128, 112, 0.03);
    height: 100%;
}

.grid-overlay .grid-line:first-child {
    border-left: 0.5px solid rgba(138, 128, 112, 0.03);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background-color: #FAFAF6;
}

.hero-rule {
    position: absolute;
    top: 40%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: #5A5040;
    transform: scaleX(0);
    transform-origin: center;
}

.hero-title {
    font-family: 'Bebas Neue', sans-serif;
    font-weight: 400;
    font-size: clamp(3rem, 7vw, 6rem);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #3A3830;
    line-height: 1;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(-20px);
    position: relative;
    z-index: 2;
}

.hero-tagline {
    font-family: 'Work Sans', sans-serif;
    font-weight: 400;
    font-size: 1.1rem;
    line-height: 1.7;
    color: #5A5040;
    max-width: 600px;
    opacity: 0;
    position: relative;
    z-index: 2;
}

/* Circuit Traces SVG */
.circuit-traces {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
}

/* Masonry Section */
.masonry-section {
    padding: 80px 0;
    position: relative;
    background-color: #FAFAF6;
}

.masonry-grid {
    column-count: 3;
    column-gap: 24px;
}

.masonry-card {
    break-inside: avoid;
    margin-bottom: 24px;
    padding: 32px;
    background-color: #FAFAF6;
    transition: background-color 200ms ease;
    opacity: 0;
    position: relative;
}

.masonry-card:hover {
    background-color: #F0E8D8;
}

.masonry-card.bg-stone {
    background-color: #8A8070;
    color: #FAFAF6;
}

.masonry-card.bg-stone:hover {
    background-color: #7A7060;
}

.masonry-card.bg-stone .card-label,
.masonry-card.bg-stone .card-text,
.masonry-card.bg-stone .card-title {
    color: #FAFAF6;
}

.masonry-card.bg-stone .data-label {
    color: #F0E8D8;
}

.masonry-card.bg-sand {
    background-color: #F0E8D8;
}

.masonry-card.bg-sand:hover {
    background-color: #E8DFD0;
}

.card-tall {
    min-height: 420px;
}

.card-medium {
    min-height: 300px;
}

.card-short {
    min-height: 200px;
}

.card-label {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: #8A8070;
    display: block;
    margin-bottom: 16px;
}

.card-title {
    font-family: 'Bebas Neue', sans-serif;
    font-weight: 400;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #3A3830;
    line-height: 1.1;
    margin-bottom: 16px;
}

.card-text {
    font-family: 'Work Sans', sans-serif;
    font-weight: 400;
    font-size: 0.95rem;
    line-height: 1.7;
    color: #5A5040;
}

.card-data {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid rgba(90, 80, 64, 0.15);
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.data-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: #8A8070;
}

.data-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 500;
    color: #B87850;
}

/* Waveform SVG */
.waveform-svg {
    width: 100%;
    height: 120px;
    display: block;
}

/* Data Readout */
.data-readout {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.readout-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 4px 0;
    border-bottom: 1px solid rgba(90, 80, 64, 0.08);
}

.readout-label {
    font-family: 'Work Sans', sans-serif;
    font-size: 0.85rem;
    color: #5A5040;
}

.readout-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
    color: #B87850;
}

/* Frequency Band Section */
.frequency-section {
    padding: 80px 0;
    background-color: #F5F2EC;
}

.section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-weight: 400;
    font-size: clamp(1.8rem, 4vw, 3rem);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #3A3830;
    margin-bottom: 48px;
}

.frequency-bars {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.freq-bar-row {
    display: flex;
    align-items: center;
    gap: 16px;
    height: 40px;
}

.freq-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    color: #5A5040;
    width: 120px;
    flex-shrink: 0;
    text-align: right;
}

.freq-bar-track {
    flex: 1;
    height: 100%;
    position: relative;
    background-color: rgba(138, 128, 112, 0.06);
}

.freq-bar {
    height: 100%;
    width: 0%;
    transition: width 1.2s ease-out;
}

.freq-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
    color: #B87850;
    width: 50px;
    flex-shrink: 0;
}

/* Footer */
.footer {
    padding: 60px 0 40px;
    background-color: #FAFAF6;
    border-top: 1px solid rgba(90, 80, 64, 0.15);
}

.footer-grid {
    display: grid;
    grid-template-columns: 3fr 2fr 1fr 2fr;
    gap: 24px;
}

.footer-title {
    font-family: 'Bebas Neue', sans-serif;
    font-weight: 400;
    font-size: 1.4rem;
    letter-spacing: 0.04em;
    color: #3A3830;
    display: block;
    margin-bottom: 8px;
}

.footer-heading {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: #8A8070;
    text-transform: uppercase;
    display: block;
    margin-bottom: 8px;
}

.footer-text {
    font-family: 'Work Sans', sans-serif;
    font-size: 0.85rem;
    line-height: 1.6;
    color: #5A5040;
}

.footer-copyright {
    text-align: right;
}

/* Responsive */
@media (max-width: 900px) {
    .masonry-grid {
        column-count: 2;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .masonry-grid {
        column-count: 1;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .freq-label {
        width: 80px;
        font-size: 0.65rem;
    }

    .hero-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }
}