/* ==========================================================================
core.css
- Global reset, tokens, typography, layout, responsive
- Theme: Sakura Pink + Champagne Gold + Velvet Black
========================================================================== */


/* -------- Reset / base -------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; }
img, svg, video, canvas { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid rgba(255, 192, 203, .7); outline-offset: 3px; }


/* -------- Theme tokens -------- */
:root{
/* Surfaces */
--paper: #FFFFFF;
--paper-2: #FFF7FA; /* subtle sakura mist */
--velvet: #0B0D14; /* velvet black (cool) */
--velvet-2:#0F1320;


/* Sakura */
--sakura: #FFC0CB; /* main */
--sakura-strong: #FF8FA8;
--sakura-mist: #FFF1F5;
--sakura-glow: rgba(255,192,203,.28);


/* Champagne gold */
--gold: #C9A86A;
--gold-2:#F3E2B7;
--gold-3:#9B7B3E;


/* Text */
--ink: #0E1020;
--muted: rgba(14,16,32,.62);
--muted-2: rgba(255,255,255,.72);


/* Lines */
--line: rgba(14,16,32,.10);
--line-w: rgba(255,255,255,.12);


/* Glass */
--glass: rgba(255,255,255,.08);


/* Radius / shadows */
--r12: 12px;
--r16: 16px;
--r22: 22px;
--r28: 28px;


--shadow-sm: 0 12px 28px rgba(0,0,0,.08);
--shadow-md: 0 20px 60px rgba(0,0,0,.12);
--shadow-lg: 0 28px 90px rgba(0,0,0,.22);
/* Layout */
--max: 1200px;
--pad: 22px;


/* Type scale */
--fz-12: 12px;
--fz-14: 14px;
--fz-16: 16px;
--fz-18: 18px;
--fz-22: 22px;
--fz-30: 30px;
--fz-44: 44px;
--fz-56: 56px;


/* Motion */
--ease: cubic-bezier(.2,.7,.2,1);
--dur-fast: 180ms;
--dur: 320ms;
--dur-slow: 900ms;
}
/* -------- Dark mode (optional, keeps luxury mood) -------- */
@media (prefers-color-scheme: dark){
:root{
--paper: #0B0D14;
--paper-2: #0F1320;
--ink: rgba(255,255,255,.92);
--muted: rgba(255,255,255,.68);
--line: rgba(255,255,255,.12);
--shadow-sm: 0 12px 28px rgba(0,0,0,.28);
--shadow-md: 0 20px 60px rgba(0,0,0,.38);
--shadow-lg: 0 28px 90px rgba(0,0,0,.48);
}
}
/* -------- Base typography -------- */
body{
background: var(--paper);
color: var(--ink);
font-family:
-apple-system, BlinkMacSystemFont,
"Segoe UI", "Noto Sans JP", "Hiragino Kaku Gothic ProN",
"Yu Gothic", "PingFang SC", "Microsoft YaHei",
Inter, Roboto, Arial, sans-serif;
line-height: 1.75;
letter-spacing: .01em;
text-rendering: optimizeLegibility;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
/* Helpers */
.container{
max-width: var(--max);
margin: 0 auto;
padding: 0 var(--pad);
}
.muted{ color: var(--muted); }
.mt-24{ margin-top: 24px; }
.sep{ opacity: .55; margin: 0 8px; }


/* Skip link */
.skip-link{
position: absolute;
left: 12px; top: -60px;
padding: 10px 12px;
background: var(--paper);
border: 1px solid var(--line);
border-radius: var(--r12);
box-shadow: var(--shadow-sm);
z-index: 9999;
transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus{ top: 12px; }


/* Section */
.section{ padding: 72px 0; background: var(--paper); }
.h2{ margin: 0; font-size: var(--fz-30); letter-spacing: -.01em; line-height: 1.2; }
.link{
font-weight: 800;
letter-spacing: .02em;
color: color-mix(in srgb, var(--sakura-strong) 70%, var(--ink) 30%);
}
.link:hover{ opacity: .9; }


/* Grids */
.grid-3{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2{ display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }


/* Responsive */
@media (max-width: 980px){
:root{ --pad: 18px; --fz-56: 46px; --fz-44: 38px; }
.grid-3{ grid-template-columns: 1fr; }
.grid-2{ grid-template-columns: 1fr; }
.section{ padding: 56px 0; }
}
@media (max-width: 420px){
:root{ --pad: 16px; }
}


/* Reduced motion: globally reduce animation/transition where possible */
@media (prefers-reduced-motion: reduce){
*, *::before, *::after{
animation-duration: 1ms !important;
animation-iteration-count: 1 !important;
transition-duration: 1ms !important;
scroll-behavior: auto !important;
}
}