/* ==========================================================================
   LUX&GO — Global Design Tokens, Reset, Typography, Container/Grid System
   ========================================================================== */

:root {
    /* Color tokens */
    --color-obsidian: #090a0c;
    --color-graphite: #14171b;
    --color-white: #ffffff;
    --color-off-white: #f5f6f7;
    --color-muted-gray: #9298a1;
    --color-lux-blue: #1677ff;
    --color-lux-blue-strong: #0f5fd6;

    --color-bg: var(--color-white);
    --color-text: var(--color-obsidian);
    --color-text-muted: var(--color-muted-gray);
    --color-border: #e4e6e8;
    --color-accent: var(--color-lux-blue);

    /* Font families */
    --font-heading: "Manrope", "Segoe UI", sans-serif;
    --font-body: "Inter", "Segoe UI", sans-serif;

    /* The logo is drawn in a geometric sans — circular O and G, stroke 0.23 of
       the cap height. Outfit matches it; Manrope, the heading face, does not.
       It is used for the mark alone. */
    --font-mark: "Outfit", "Manrope", "Segoe UI", sans-serif;
    --font-mark-amp: "Poppins", var(--font-mark);

    /* Font weights */
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-light: 300;
    --fw-semibold: 600;
    --fw-bold: 700;

    /* Fluid type scale (desktop-first, 1024px - 1920px) */
    --fs-hero: clamp(3.25rem, 2.5rem + 1.4vw, 4rem); /* 52 - 64px */
    --fs-page-heading: clamp(3.25rem, 2.6rem + 1.6vw, 4rem); /* 52 - 64px */
    --fs-section-heading: clamp(2.5rem, 2.05rem + 1.1vw, 3rem); /* 40 - 48px */
    --fs-feature-heading: clamp(1.375rem, 1.2rem + 0.4vw, 1.75rem); /* 22 - 28px */
    --fs-body-lg: clamp(1.125rem, 1.03rem + 0.25vw, 1.25rem); /* 18 - 20px */
    --fs-body: clamp(0.9375rem, 0.88rem + 0.15vw, 1.0625rem); /* 15 - 17px */
    --fs-eyebrow: clamp(0.75rem, 0.72rem + 0.08vw, 0.875rem); /* 12 - 14px */

    /* Line heights */
    --lh-heading: 1.1;
    --lh-body: 1.6;

    /* Layout tokens */
    --container-max: 1440px;
    --page-gutter: clamp(24px, 2vw + 8px, 80px);
    --section-space: clamp(80px, 6vw + 32px, 160px);
    --grid-gap: 24px;
    --grid-columns: 12;

    /* Misc */
    --radius-sm: 4px;
    --radius-md: 8px;
    --border-thin: 1px solid var(--color-border);
    --transition-base: 200ms ease;
}

/* ---------------------------------------------------------------------
   Reset
   --------------------------------------------------------------------- */

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
    margin: 0;
}

ul[class],
ol[class] {
    margin: 0;
    padding: 0;
    list-style: none;
}

img,
picture,
svg,
video {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    cursor: pointer;
}

/* ---------------------------------------------------------------------
   Base typography
   --------------------------------------------------------------------- */

body {
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    font-size: var(--fs-body);
    line-height: var(--lh-body);
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: var(--fw-semibold);
    line-height: var(--lh-heading);
    color: var(--color-text);
}

.lux-eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--fs-eyebrow);
    font-weight: var(--fw-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

/* ---------------------------------------------------------------------
   Container / Grid system
   --------------------------------------------------------------------- */

.lux-container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--page-gutter);
}

.lux-section {
    padding-block: var(--section-space);
}

.lux-grid {
    display: grid;
    grid-template-columns: repeat(var(--grid-columns), 1fr);
    gap: var(--grid-gap);
}

.lux-grid--tight {
    gap: calc(var(--grid-gap) / 2);
}

/* Column span utilities (1-12) */
.lux-col-1 { grid-column: span 1; }
.lux-col-2 { grid-column: span 2; }
.lux-col-3 { grid-column: span 3; }
.lux-col-4 { grid-column: span 4; }
.lux-col-5 { grid-column: span 5; }
.lux-col-6 { grid-column: span 6; }
.lux-col-7 { grid-column: span 7; }
.lux-col-8 { grid-column: span 8; }
.lux-col-9 { grid-column: span 9; }
.lux-col-10 { grid-column: span 10; }
.lux-col-11 { grid-column: span 11; }
.lux-col-12 { grid-column: span 12; }

/* ---------------------------------------------------------------------
   Common utilities
   --------------------------------------------------------------------- */

.lux-visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.lux-text-muted {
    color: var(--color-text-muted);
}

.lux-text-accent {
    color: var(--color-accent);
}