/*
Theme Name: blueSatsuma Theme
Theme URI: https://bluesatsuma.co.uk
Author: Andrew
Description: A clean, modern custom theme built from scratch.
Version: 1.0
Text Domain: bluesatsuma
*/

:root {
    /* Colours */
    --bs-bg: #050608;
    --bs-surface: #101218;
    --bs-accent: #ff6a00;
    --bs-accent-soft: rgba(255, 106, 0, 0.12);
    --bs-text: #f5f5f5;
    --bs-text-muted: #a0a3b1;
    --bs-border: #262938;

    /* Typography */
    --bs-font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Inter", sans-serif;
    --bs-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

    --bs-fs-xs: 0.75rem;
    --bs-fs-sm: 0.875rem;
    --bs-fs-base: 1rem;
    --bs-fs-lg: 1.25rem;
    --bs-fs-xl: 1.75rem;
    --bs-fs-xxl: 2.5rem;
    --bs-fs-display: clamp(2.8rem, 4vw, 3.6rem);

    /* Spacing */
    --bs-space-xs: 0.5rem;
    --bs-space-sm: 0.75rem;
    --bs-space-md: 1.5rem;
    --bs-space-lg: 2.5rem;
    --bs-space-xl: 4rem;

    /* Radius */
    --bs-radius-sm: 6px;
    --bs-radius-md: 10px;
    --bs-radius-lg: 18px;
    --bs-radius-pill: 999px;

    /* Shadows */
    --bs-shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.45);
}

/* Base */

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

body {
    margin: 0;
    font-family: var(--bs-font-sans);
    background: radial-gradient(circle at top left, #151827 0, #050608 45%);
    color: var(--bs-text);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--bs-accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout */

.container {
    width: min(1120px, 90vw);
    margin-inline: auto;
}

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

.section--tight {
    padding-block: var(--bs-space-lg);
}

/* Typography utilities */

.h1 {
    font-size: var(--bs-fs-display);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.h2 {
    font-size: var(--bs-fs-xxl);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.h3 {
    font-size: var(--bs-fs-xl);
    line-height: 1.2;
}

.text-muted {
    color: var(--bs-text-muted);
    font-size: var(--bs-fs-sm);
}

/* Header & nav */

.site-header {
    padding-block: var(--bs-space-md);
    border-bottom: 1px solid var(--bs-border);
    backdrop-filter: blur(18px);
    background: linear-gradient(to bottom, rgba(5, 6, 8, 0.9), rgba(5, 6, 8, 0.7));
    position: sticky;
    top: 0;
    z-index: 20;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--bs-space-md);
}

.logo a {
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: var(--bs-fs-sm);
    color: var(--bs-text);
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: var(--bs-space-md);
    margin: 0;
    padding: 0;
}

.main-nav a {
    font-size: var(--bs-fs-sm);
    color: var(--bs-text-muted);
}

.main-nav a:hover {
    color: var(--bs-text);
}

/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.4rem;
    border-radius: var(--bs-radius-pill);
    border: 1px solid transparent;
    font-size: var(--bs-fs-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.18s ease-out;
    text-decoration: none;
}

.btn--primary {
    background: var(--bs-accent);
    color: #050608;
    box-shadow: var(--bs-shadow-soft);
}

.btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 22px 55px rgba(0, 0, 0, 0.6);
}

.btn--ghost {
    background: transparent;
    border-color: var(--bs-border);
    color: var(--bs-text-muted);
}

.btn--ghost:hover {
    border-color: var(--bs-accent);
    color: var(--bs-text);
}

/* Cards & surfaces */

.surface {
    background: var(--bs-surface);
    border-radius: var(--bs-radius-lg);
    border: 1px solid var(--bs-border);
    padding: var(--bs-space-lg);
    box-shadow: var(--bs-shadow-soft);
}

.card {
    background: rgba(16, 18, 24, 0.9);
    border-radius: var(--bs-radius-md);
    border: 1px solid var(--bs-border);
    padding: var(--bs-space-md);
}

/* Grid */

.grid {
    display: grid;
    gap: var(--bs-space-md);
}

.grid--2 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid--3 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* Footer */

.site-footer {
    padding-block: var(--bs-space-lg);
    border-top: 1px solid var(--bs-border);
    color: var(--bs-text-muted);
    font-size: var(--bs-fs-xs);
}