/*
   Lexo Premium Design System
   Light-only MVP workspace and landing language
*/

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght,SOFT@9..144,500..700,50&family=JetBrains+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
    --font-serif: 'Fraunces', Georgia, serif;
    --font-sans: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --background: #f6f1e8;
    --background-elevated: #fbf8f2;
    --background-strong: #fffdf9;
    --foreground: #171d29;
    --foreground-soft: #334055;
    --foreground-muted: #667388;

    --card: rgba(255, 252, 247, 0.76);
    --card-strong: rgba(255, 255, 253, 0.92);
    --card-foreground: #171d29;
    --popover: rgba(255, 252, 247, 0.94);
    --popover-foreground: #171d29;

    --primary: #182033;
    --primary-foreground: #fbf8f2;
    --primary-soft: #2f4262;
    --secondary: rgba(228, 220, 208, 0.58);
    --secondary-foreground: #2c374a;
    --muted: rgba(222, 216, 206, 0.58);
    --muted-foreground: #6c7687;
    --accent: #b48652;
    --accent-foreground: #101621;
    --success: #18805e;
    --warning: #b87423;
    --destructive: #c24d4d;
    --destructive-foreground: #fff8f6;

    --border: rgba(72, 83, 106, 0.14);
    --border-strong: rgba(40, 48, 66, 0.2);
    --input: rgba(255, 252, 247, 0.9);
    --ring: rgba(56, 75, 112, 0.22);

    --surface-glow: radial-gradient(circle at top left, rgba(184, 134, 82, 0.14), transparent 38%), radial-gradient(circle at 80% 10%, rgba(84, 104, 143, 0.12), transparent 28%);
    --shadow-soft: 0 12px 30px rgba(24, 32, 51, 0.08);
    --shadow-medium: 0 24px 60px rgba(24, 32, 51, 0.12);
    --shadow-strong: 0 32px 90px rgba(24, 32, 51, 0.16);

    --radius-xs: 12px;
    --radius-sm: 18px;
    --radius: 24px;
    --radius-lg: 32px;

    --section-spacing: clamp(5rem, 9vw, 8.5rem);
    --container-max-width: 1240px;
}

* {
    border-color: var(--border);
}

html {
    color-scheme: light;
}

body {
    background:
        radial-gradient(circle at top left, rgba(171, 186, 227, 0.16), transparent 32%),
        radial-gradient(circle at top right, rgba(196, 167, 129, 0.12), transparent 26%),
        linear-gradient(180deg, rgba(255, 251, 246, 0.8), rgba(246, 241, 232, 0.96)),
        var(--background);
    color: var(--foreground);
    font-family: var(--font-sans);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-sans);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.04;
    color: var(--foreground);
}

.text-display,
.text-serif {
    font-family: var(--font-serif);
    letter-spacing: -0.035em;
    font-variation-settings: 'SOFT' 80;
}

.text-sans {
    font-family: var(--font-sans);
}

.text-mono {
    font-family: var(--font-mono);
}

.italic {
    font-style: italic;
}

.tracking-tight { letter-spacing: -0.03em; }
.tracking-wide { letter-spacing: 0.06em; }
.tracking-widest { letter-spacing: 0.22em; }

.btn-premium {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 54px;
    padding: 0.95rem 1.4rem;
    border-radius: 999px;
    background: linear-gradient(135deg, #171d29, #2f3a4f);
    color: var(--primary-foreground);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 18px 45px rgba(23, 29, 41, 0.18);
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.83rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.24s ease, box-shadow 0.24s ease, background 0.24s ease, border-color 0.24s ease;
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 22px 52px rgba(23, 29, 41, 0.24);
    background: linear-gradient(135deg, #111724, #273147);
}

.btn-premium-outline {
    background: rgba(255, 253, 249, 0.62);
    color: var(--foreground);
    border: 1px solid var(--border-strong);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.btn-premium-outline:hover {
    background: rgba(255, 255, 255, 0.86);
    border-color: rgba(36, 45, 64, 0.26);
}

.py-editorial {
    padding-top: var(--section-spacing);
    padding-bottom: var(--section-spacing);
}

.container-premium {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding-left: clamp(1.2rem, 2vw, 2rem);
    padding-right: clamp(1.2rem, 2vw, 2rem);
}

.surface-glass {
    background: var(--card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
}

.surface-panel {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 252, 0.92), rgba(251, 247, 239, 0.88));
    border: 1px solid var(--border);
    box-shadow: var(--shadow-medium);
    border-radius: var(--radius);
    overflow: hidden;
}

.surface-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--surface-glow);
    opacity: 0.9;
    pointer-events: none;
}