/* ==========================================================================
   XION LANDING — product site styles
   Builds on the Crystal Peak design tokens in styles.css.
   ========================================================================== */

:root {
    --xion-edge:        rgba(255, 255, 255, 0.08);
    --xion-edge-strong: rgba(255, 255, 255, 0.16);
    --xion-panel:       rgba(255, 255, 255, 0.025);
    --xion-panel-2:     rgba(255, 255, 255, 0.05);
    --xion-glow:        rgba(90, 187, 92, 0.18);
    --xion-term-bg:     #161616;
    --xion-maxw:        1300px;
    --xion-pad:         60px;
}

.page-home { overflow-x: hidden; }

/* Full-width canvas; each section centers its own content column.
   No viewport/container math — robust at any monitor width. */
.page-home .page-container {
    max-width: none;
    margin: 0;
    padding: 0;
}

/* The shared centered content column */
.xion-hero,
.xion-section,
.xion-cta {
    max-width: var(--xion-maxw);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--xion-pad);
    padding-right: var(--xion-pad);
}


/* ============================ HEADER OVERRIDE ============================ */

.page-home .header { padding: 28px 0; }

.page-home .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo { gap: 14px; }

.page-home .logo-img { height: 40px; }

.logo-wordmark {
    font-family: var(--font-monocal);
    font-size: 26px;
    letter-spacing: 0.14em;
    color: var(--color-text);
    line-height: 1;
}

.page-home .nav-right { gap: 30px; display: flex; align-items: center; }

.page-home .nav-link {
    font-family: var(--font-sans);
    font-size: var(--font-size-md);
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--color-text-muted);
    transition: color var(--timing-fast) var(--ease-default);
}

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

/* Center the nav separator in the home nav's 30px gap (base rule uses -25px) */
.page-home .nav > *:not(:nth-last-child(-n+2))::after { right: -15px; }


/* ============================ BUTTONS ============================ */

.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--xion-edge-strong);
    border-radius: var(--radius-md);
    transition: border-color var(--timing-fast) var(--ease-default),
                background-color var(--timing-fast) var(--ease-default),
                transform var(--timing-fast) var(--ease-default);
}

.btn-ghost:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-bg);
    transform: translateY(-1px);
}

.btn-primary { border-radius: var(--radius-md); }


/* ============================ HERO ============================ */

.xion-hero { padding: 64px var(--xion-pad) 32px; }

.xion-hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
    align-items: center;
}

.xion-hero-title {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: clamp(40px, 5.4vw, 68px);
    line-height: 1.04;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.xion-hero-title .heading-green {
    display: block;
    font-family: var(--font-sans);
    font-weight: 800;
    -webkit-text-stroke: 0;
    letter-spacing: -0.02em;
}

.xion-hero-lede {
    font-size: var(--font-size-1_25xl);
    line-height: 1.6;
    color: var(--color-text-muted);
    max-width: 36em;
    margin-bottom: 34px;
}

.xion-cta-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.xion-cta-row--center { justify-content: center; }


/* ============================ TERMINAL ============================ */

.xion-terminal,
.xion-code {
    background: var(--xion-term-bg);
    border: 1px solid var(--xion-edge);
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(0,0,0,0.2);
    overflow: hidden;
}

.xion-terminal-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--xion-edge);
}

.xion-dot {
    width: 11px; height: 11px;
    border-radius: 50%;
    background: #3a3a3a;
}
.xion-dot:nth-child(1) { background: #e0605a; }
.xion-dot:nth-child(2) { background: #e0b35a; }
.xion-dot:nth-child(3) { background: #5abb5c; }

.xion-terminal-title {
    margin-left: 10px;
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted-2x);
}

.xion-terminal-body,
.xion-code code {
    display: block;
    padding: 22px 22px 26px;
    font-family: 'Space Mono', var(--font-monocal), monospace;
    font-size: 13.5px;
    line-height: 1.7;
    color: var(--color-text-muted);
    white-space: pre;
    overflow-x: auto;
    margin: 0;
}

.xion-code code { padding: 20px 22px; }

.t-prompt { color: var(--color-primary); font-weight: 700; }
.t-cmd    { color: var(--color-text); font-weight: 700; }
.t-flag   { color: #8fd0ff; }
.t-dim    { color: var(--color-text-muted-2x); }
.t-ok     { color: var(--color-primary); }
.t-cursor { color: var(--color-primary); animation: xion-blink 1.1s steps(1) infinite; }

@keyframes xion-blink { 50% { opacity: 0; } }


/* ============================ SPEC GROUPS / CHIPS ============================ */

.xion-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-top: 60px;
    padding-top: 32px;
    border-top: 1px solid var(--xion-edge);
}

.xion-spec-label {
    display: block;
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-text-muted-2x);
    margin-bottom: 14px;
}

.xion-spec-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.xion-chip {
    font-family: var(--font-monocal);
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    padding: 6px 14px;
    border: 1px solid var(--xion-edge);
    border-radius: 999px;
    white-space: nowrap;
}


/* ============================ SECTION SCAFFOLD ============================ */

.xion-section { padding-top: 96px; padding-bottom: 96px; }

/* Alt sections stay a normal centered column (children left-align like every
   other section); a pseudo-element paints the band full-width behind them.
   The vw math resolves correctly here because the column itself is centered. */
.xion-section--alt { position: relative; }

.xion-section--alt::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 100vw;
    transform: translateX(-50%);
    background: var(--xion-panel);
    border-top: 1px solid var(--xion-edge);
    border-bottom: 1px solid var(--xion-edge);
    z-index: -1;
    pointer-events: none;
}

.xion-section-head { max-width: 760px; margin-bottom: 56px; }

.xion-section-head .heading-medium {
    font-family: var(--font-sans);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.section-label-pill {
    display: inline-block;
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: var(--color-primary-bg);
    border: 1px solid rgba(90, 187, 92, 0.3);
    border-radius: 999px;
    padding: 6px 14px;
    margin-bottom: 22px;
}

.xion-section-lede {
    font-size: var(--font-size-1_25xl);
    line-height: 1.6;
    color: var(--color-text-muted);
}


/* ============================ BACKENDS ============================ */

.xion-backends {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.xion-backend-card {
    display: flex;
    flex-direction: column;
    background: var(--xion-panel);
    border: 1px solid var(--xion-edge);
    border-radius: var(--radius-xl);
    padding: 32px 30px;
    transition: transform var(--timing-medium) var(--ease-out),
                border-color var(--timing-medium) var(--ease-out),
                background-color var(--timing-medium) var(--ease-out);
}

.xion-backend-card:hover {
    transform: translateY(-4px);
    border-color: var(--xion-edge-strong);
    background: var(--xion-panel-2);
}

.xion-backend-card--feature {
    border-color: rgba(90, 187, 92, 0.4);
    background: linear-gradient(180deg, var(--xion-glow), var(--xion-panel) 55%);
    box-shadow: 0 0 0 1px rgba(90, 187, 92, 0.12), 0 30px 60px -40px var(--xion-glow);
}

.xion-backend-index {
    font-family: var(--font-monocal);
    font-size: var(--font-size-md);
    color: var(--color-text-muted-2x);
}

.xion-backend-name {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-1_5xl);
    margin: 6px 0 4px;
}

.xion-backend-tag {
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 18px;
}

.xion-backend-desc {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    color: var(--color-text-muted);
    margin-bottom: 18px;
}

.xion-backend-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.xion-backend-list li {
    position: relative;
    padding-left: 24px;
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    line-height: 1.5;
}

.xion-backend-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.xion-meter { margin-top: auto; display: flex; flex-direction: column; gap: 12px; }

.xion-meter-row {
    display: grid;
    grid-template-columns: 96px 1fr;
    align-items: center;
    gap: 12px;
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted-2x);
}

.xion-bar {
    display: block;
    height: 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.xion-bar b {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: var(--color-primary);
}

.xion-backend-foot {
    margin-top: 36px;
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
}


/* ============================ ARCHITECTURE STACK ============================ */

.xion-stack {
    max-width: 1040px;
    margin: 0 auto;
    background: var(--xion-panel);
    border: 1px solid var(--xion-edge-strong);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.xion-tier {
    display: grid;
    grid-template-columns: 210px 1fr;
}

.xion-tier + .xion-tier {
    border-top: 1px solid var(--xion-edge-strong);
}

.xion-tier-label {
    padding: 24px 22px;
    border-right: 1px solid var(--xion-edge-strong);
    border-left: 3px solid var(--color-primary);
    background: var(--xion-panel-2);
}

.xion-tier-name {
    display: block;
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-1_25xl);
    letter-spacing: -0.01em;
}

.xion-tier-note {
    display: block;
    margin-top: 6px;
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted-2x);
}

.xion-tier--base {
    background: linear-gradient(90deg, var(--xion-glow), transparent 60%);
}

.xion-tier--base .xion-tier-label {
    background: linear-gradient(90deg, rgba(90, 187, 92, 0.16), var(--xion-panel-2));
}

.xion-tier-rows {
    display: flex;
    flex-direction: column;
}

.xion-layer {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
    position: relative;
    padding: 20px 26px 20px 58px;
    transition: background-color var(--timing-medium) var(--ease-out);
}

.xion-layer + .xion-layer {
    border-top: 1px solid var(--xion-edge);
}

.xion-layer::before {
    content: attr(data-tier);
    position: absolute;
    left: 22px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted-2x);
}

.xion-layer:hover {
    background: var(--xion-panel-2);
}

.xion-layer-main h3 {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-1_25xl);
    margin-bottom: 6px;
}

.xion-layer-main p {
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    line-height: 1.5;
    max-width: 52ch;
}

.xion-layer-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; max-width: 280px; }

.xion-layer-tags span {
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted-2x);
    padding: 4px 10px;
    border: 1px solid var(--xion-edge);
    border-radius: 999px;
    white-space: nowrap;
}


/* ============================ FEATURE GRID ============================ */

.xion-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.xion-feature {
    background: var(--xion-panel);
    border: 1px solid var(--xion-edge);
    border-radius: var(--radius-lg);
    padding: 28px 26px;
    transition: transform var(--timing-medium) var(--ease-out),
                border-color var(--timing-medium) var(--ease-out),
                background-color var(--timing-medium) var(--ease-out);
}

.xion-feature:hover {
    transform: translateY(-4px);
    border-color: rgba(90, 187, 92, 0.4);
    background: var(--xion-panel-2);
}

.xion-feature-icon {
    width: 46px; height: 46px;
    display: flex; align-items: center; justify-content: center;
    color: var(--color-primary);
    background: var(--color-primary-bg);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}
.xion-feature-icon svg { width: 24px; height: 24px; }

.xion-feature-title {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-1_25xl);
    margin-bottom: 10px;
}

.xion-feature-text {
    font-size: var(--font-size-md);
    line-height: 1.6;
    color: var(--color-text-muted);
}

.xion-feature-text code,
.xion-backend-desc code {
    font-family: var(--font-monocal);
    font-size: 0.92em;
    color: var(--color-primary);
    background: var(--color-primary-bg);
    padding: 1px 5px;
    border-radius: 4px;
}


/* ============================ DEEP DIVES ============================ */

.xion-deepdive {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    padding: 44px 0;
}
.xion-deepdive + .xion-deepdive { border-top: 1px solid var(--xion-edge); }

.xion-deepdive--reverse .xion-deepdive-copy { order: 2; }
.xion-deepdive--reverse .xion-deepdive-visual { order: 1; }

.xion-deepdive-kicker {
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-primary);
}

.xion-deepdive-title {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-2xl);
    letter-spacing: -0.02em;
    margin: 12px 0 18px;
}

.xion-deepdive-copy p {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}
.xion-deepdive-copy p:last-child { margin-bottom: 0; }

.xion-deepdive-copy code {
    font-family: var(--font-monocal);
    font-size: 0.92em;
    color: var(--color-primary);
}


/* ============================ XION IN USE ============================ */

.xion-snippets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.xion-snippet {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.xion-snippet figcaption {
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    line-height: 1.45;
}

.xion-snippet .xion-code {
    flex: 1;
    box-shadow: none;
}

.xion-snippet .xion-code code {
    padding: 16px 18px;
    font-size: 12.5px;
    line-height: 1.65;
}


/* ============================ USE CASES ============================ */

.xion-usecases {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.xion-usecase {
    padding: 30px 28px;
    background: var(--xion-panel);
    border: 1px solid var(--xion-edge);
    border-radius: var(--radius-lg);
    transition: border-color var(--timing-medium) var(--ease-out),
                background-color var(--timing-medium) var(--ease-out);
}
.xion-usecase:hover { border-color: var(--xion-edge-strong); background: var(--xion-panel-2); }

.xion-usecase h3 {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-1_25xl);
    margin-bottom: 10px;
    color: var(--color-primary);
}

.xion-usecase p {
    font-size: var(--font-size-md);
    line-height: 1.6;
    color: var(--color-text-muted);
}


/* ============================ PAGE HERO (sub-pages) ============================ */

.xion-pagehero {
    padding: 80px var(--xion-pad) 40px;
    max-width: var(--xion-maxw);
    margin: 0 auto;
}

.xion-pagehero--center {
    text-align: center;
}
.xion-pagehero--center .xion-pagehero-lede { margin-left: auto; margin-right: auto; }

.xion-pagehero-title {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: clamp(36px, 4.6vw, 60px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin: 18px 0 20px;
}

.xion-pagehero-lede {
    font-size: var(--font-size-1_25xl);
    line-height: 1.6;
    color: var(--color-text-muted);
    max-width: 44em;
    margin-bottom: 30px;
}


/* ============================ FEATURES TEASER (home) ============================ */

.xion-features--compact { grid-template-columns: repeat(4, 1fr); }

.xion-more {
    text-align: center;
    margin-top: 44px;
}


/* ============================ PRICING ============================ */

.xion-pricing {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: start;
}

.xion-price-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--xion-panel);
    border: 1px solid var(--xion-edge);
    border-radius: var(--radius-xl);
    padding: 30px 26px;
}

.xion-price-card--feature {
    border-color: rgba(90, 187, 92, 0.45);
    background: linear-gradient(180deg, var(--xion-glow), var(--xion-panel) 55%);
    box-shadow: 0 0 0 1px rgba(90, 187, 92, 0.12), 0 30px 60px -40px var(--xion-glow);
}

.xion-price-badge {
    position: absolute;
    top: -12px;
    left: 26px;
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-dark);
    background: var(--color-primary);
    padding: 4px 12px;
    border-radius: 999px;
}

.xion-price-name {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-1_5xl);
    margin-bottom: 6px;
}

.xion-price-blurb {
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    min-height: 2.8em;
}

.xion-price-amount {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 18px 0 22px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--xion-edge);
}

.xion-price-value {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-2xl);
    line-height: 1;
    color: var(--color-text);
}

.xion-price-period {
    font-family: var(--font-monocal);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted-2x);
}

.xion-price-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.xion-price-list li {
    position: relative;
    padding-left: 26px;
    font-size: var(--font-size-md);
    line-height: 1.5;
    color: var(--color-text-muted);
}

.xion-price-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.xion-price-note {
    margin-top: 36px;
    text-align: center;
    font-size: var(--font-size-md);
    color: var(--color-text-muted-2x);
    max-width: 60ch;
    margin-left: auto;
    margin-right: auto;
}


/* ============================ COMPARISON MATRIX ============================ */

.xion-compare-wrap { overflow-x: auto; }

.xion-compare {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-md);
    min-width: 720px;
}

.xion-compare th,
.xion-compare td {
    padding: 16px 18px;
    text-align: center;
    border-bottom: 1px solid var(--xion-edge);
}

.xion-compare thead th {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    border-bottom: 1px solid var(--xion-edge-strong);
}

.xion-compare tbody th[scope="row"],
.xion-compare thead th:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--color-text-muted);
}

.xion-compare td { color: var(--color-text-muted); }

.xion-compare td:not(:empty) { font-family: var(--font-monocal); }

.xion-compare .is-feature {
    background: rgba(90, 187, 92, 0.06);
    color: var(--color-primary);
}
.xion-compare thead th.is-feature { color: var(--color-primary); }


/* ============================ CTA ============================ */

.xion-cta { padding-top: 110px; padding-bottom: 110px; }
.xion-cta .heading-large { font-size: var(--font-size-display-sm); }


/* ============================ RESPONSIVE ============================ */

@media (max-width: 1024px) {
    .xion-features { grid-template-columns: repeat(2, 1fr); }
    .xion-features--compact { grid-template-columns: repeat(2, 1fr); }
    .xion-backends { grid-template-columns: 1fr; }
    .xion-usecases { grid-template-columns: repeat(2, 1fr); }
    .xion-pricing { grid-template-columns: repeat(2, 1fr); }
    .xion-snippets { grid-template-columns: repeat(2, 1fr); }
    .xion-hero-grid { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 768px) {
    :root { --xion-pad: 24px; }

    .page-home .header { padding: 20px 0; }
    .page-home .nav-right { display: none; }

    .xion-section { padding-top: 64px; padding-bottom: 64px; }
    .xion-deepdive { grid-template-columns: 1fr; gap: 28px; padding: 36px 0; }
    .xion-deepdive--reverse .xion-deepdive-copy { order: 1; }
    .xion-deepdive--reverse .xion-deepdive-visual { order: 2; }

    .xion-features { grid-template-columns: 1fr; }
    .xion-features--compact { grid-template-columns: 1fr; }
    .xion-usecases { grid-template-columns: 1fr; }
    .xion-pricing { grid-template-columns: 1fr; }
    .xion-snippets { grid-template-columns: 1fr; }
    .xion-specs { grid-template-columns: 1fr; gap: 24px; }

    .xion-tier { grid-template-columns: 1fr; }
    .xion-tier-label { border-right: none; border-bottom: 1px solid var(--xion-edge-strong); }
    .xion-layer { grid-template-columns: 1fr; gap: 14px; padding: 20px 22px 20px 56px; }
    .xion-layer-tags { justify-content: flex-start; max-width: none; }

    .xion-meter-row { grid-template-columns: 84px 1fr; }
}

/* Mobile nav: the shared hamburger menu reveals the nav as an overlay */
@media (max-width: 768px) {
    .page-home .nav.active {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 22px;
    }
}