/* ============================================================================
   MR. LAUNDRY — DESIGN SYSTEM (2070)
   Single source of truth: tokens + base. Neon brand + auto light/dark.
   No hardcoded colors anywhere downstream — only var(--token).
   Loaded standalone; safe to load alongside legacy CSS during migration.
   ============================================================================ */

/* ---------------------------------------------------------------------------
   1. TOKENS — BRAND (mode-independent)
--------------------------------------------------------------------------- */
:root {
    /* Brand blue ramp */
    --brand-50:  #e9f3fc;
    --brand-100: #cfe6fb;
    --brand-200: #9ccbf3;
    --brand-300: #5fa8e8;
    --brand-400: #3091df;   /* brand light */
    --brand-500: #1966a4;   /* brand primary */
    --brand-600: #185fa5;
    --brand-700: #0c447c;
    --brand-900: #042c53;

    /* Neon accents (the 2070 signature) */
    --neon:      #19b7ff;
    --neon-2:    #5b8cff;
    --neon-soft: rgba(25, 183, 255, .14);

    /* Functional */
    --c-success:  #22c55e;
    --c-whatsapp: #25d366;
    --c-danger:   #ef4444;
    --c-warning:  #f59e0b;
    --c-star:     #ffc944;

    /* Typography families */
    --font-display: 'Sora', 'Manrope', system-ui, sans-serif;
    --font-sans:    'Inter', 'Manrope', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

    /* Fluid type scale (mobile → desktop) */
    --fs-xs:   clamp(0.78rem, 0.74rem + 0.18vw, 0.86rem);
    --fs-sm:   clamp(0.88rem, 0.84rem + 0.20vw, 0.96rem);
    --fs-base: clamp(1.00rem, 0.96rem + 0.25vw, 1.13rem);
    --fs-md:   clamp(1.13rem, 1.05rem + 0.45vw, 1.30rem);
    --fs-lg:   clamp(1.35rem, 1.18rem + 0.85vw, 1.75rem);
    --fs-xl:   clamp(1.65rem, 1.35rem + 1.50vw, 2.40rem);
    --fs-2xl:  clamp(2.05rem, 1.55rem + 2.50vw, 3.20rem);
    --fs-3xl:  clamp(2.40rem, 1.70rem + 3.60vw, 4.20rem);

    /* Spacing scale */
    --sp-1: 0.25rem;
    --sp-2: 0.5rem;
    --sp-3: 0.75rem;
    --sp-4: 1rem;
    --sp-5: 1.5rem;
    --sp-6: 2rem;
    --sp-7: 3rem;
    --sp-8: 4rem;
    --sp-9: 6rem;
    --sp-10: 8rem;

    /* Radius */
    --r-sm: 8px;
    --r-md: 12px;
    --r-lg: 18px;
    --r-xl: 26px;
    --r-pill: 999px;

    /* Layout */
    --container: 1180px;
    --container-narrow: 880px;
    --gutter: clamp(1rem, 4vw, 2.5rem);
    --header-h: 76px;

    /* Motion */
    --ease: cubic-bezier(.22, .61, .36, 1);
    --ease-out: cubic-bezier(.16, 1, .3, 1);
    --t-fast: .18s;
    --t: .3s;
    --t-slow: .6s;

    /* Z-index scale */
    --z-header: 100;
    --z-overlay: 900;
    --z-drawer: 1000;
    --z-toast: 1100;
}

/* ---------------------------------------------------------------------------
   2. TOKENS — SEMANTIC (LIGHT, default)
--------------------------------------------------------------------------- */
:root {
    color-scheme: light;

    --bg:          #f4f8fc;
    --bg-alt:       #eaf1f9;
    --surface:      #ffffff;
    --surface-2:    #f1f6fc;
    --surface-inv:  #0b1220;

    --glass-bg:     rgba(255, 255, 255, .62);
    --glass-border: rgba(255, 255, 255, .85);

    --ink:       #14233a;
    --ink-muted: #51637a;
    --ink-soft:  #7d8da3;
    --ink-inv:   #eaf2ff;

    --border:        rgba(20, 40, 70, .12);
    --border-strong: rgba(20, 40, 70, .22);

    --accent:   var(--brand-500);
    --accent-2: var(--brand-400);
    --accent-grad: linear-gradient(110deg, var(--brand-500), var(--brand-400));
    --on-accent: #ffffff;

    --glow:      rgba(25, 102, 164, .18);
    --grid-line: rgba(25, 102, 164, .07);

    --shadow-sm: 0 2px 10px rgba(20, 40, 70, .07);
    --shadow-md: 0 14px 34px rgba(20, 40, 70, .09);
    --shadow-lg: 0 26px 60px rgba(25, 102, 164, .16);
    --ring:      0 0 0 3px rgba(48, 145, 223, .42);
}

/* ---------------------------------------------------------------------------
   3. TOKENS — SEMANTIC (DARK / neon)
   Applied: (a) auto via OS preference unless user forced light,
            (b) manual via [data-theme="dark"].
--------------------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;

        --bg:          #070b14;
        --bg-alt:       #0a101d;
        --surface:      #0e1626;
        --surface-2:    #111b30;
        --surface-inv:  #ffffff;

        --glass-bg:     rgba(14, 22, 38, .55);
        --glass-border: rgba(59, 201, 255, .22);

        --ink:       #eaf2ff;
        --ink-muted: #9fb2cc;
        --ink-soft:  #6f86a6;
        --ink-inv:   #14233a;

        --border:        rgba(91, 140, 255, .18);
        --border-strong: rgba(59, 201, 255, .42);

        --accent:   var(--neon);
        --accent-2: var(--neon-2);
        --accent-grad: linear-gradient(110deg, var(--neon), var(--neon-2));
        --on-accent: #03121f;

        --glow:      rgba(25, 183, 255, .35);
        --grid-line: rgba(59, 201, 255, .08);

        --shadow-sm: 0 2px 14px rgba(0, 0, 0, .45);
        --shadow-md: 0 16px 44px rgba(0, 0, 0, .55);
        --shadow-lg: 0 0 54px rgba(25, 183, 255, .18);
        --ring:      0 0 0 3px rgba(25, 183, 255, .5);
    }
}

:root[data-theme="dark"] {
    color-scheme: dark;

    --bg:          #070b14;
    --bg-alt:       #0a101d;
    --surface:      #0e1626;
    --surface-2:    #111b30;
    --surface-inv:  #ffffff;

    --glass-bg:     rgba(14, 22, 38, .55);
    --glass-border: rgba(59, 201, 255, .22);

    --ink:       #eaf2ff;
    --ink-muted: #9fb2cc;
    --ink-soft:  #6f86a6;
    --ink-inv:   #14233a;

    --border:        rgba(91, 140, 255, .18);
    --border-strong: rgba(59, 201, 255, .42);

    --accent:   var(--neon);
    --accent-2: var(--neon-2);
    --accent-grad: linear-gradient(110deg, var(--neon), var(--neon-2));
    --on-accent: #03121f;

    --glow:      rgba(25, 183, 255, .35);
    --grid-line: rgba(59, 201, 255, .08);

    --shadow-sm: 0 2px 14px rgba(0, 0, 0, .45);
    --shadow-md: 0 16px 44px rgba(0, 0, 0, .55);
    --shadow-lg: 0 0 54px rgba(25, 183, 255, .18);
    --ring:      0 0 0 3px rgba(25, 183, 255, .5);
}

/* ---------------------------------------------------------------------------
   4. RESET / BASE
--------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    line-height: 1.7;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    transition: background var(--t) var(--ease), color var(--t) var(--ease);
    overflow-x: hidden;
}

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

h1, h2, h3, h4 {
    font-family: var(--font-display);
    line-height: 1.12;
    letter-spacing: -0.02em;
    color: var(--ink);
    font-weight: 800;
    text-wrap: balance;
}
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p { color: var(--ink-muted); }
p, ul, ol { text-wrap: pretty; }

a { color: var(--accent); text-decoration: none; transition: color var(--t-fast) var(--ease); }
a:hover { color: var(--accent-2); }

strong, b { font-weight: 700; color: var(--ink); }

:focus-visible { outline: none; box-shadow: var(--ring); border-radius: var(--r-sm); }

::selection { background: var(--accent); color: var(--on-accent); }

/* ---------------------------------------------------------------------------
   5. LAYOUT PRIMITIVES
--------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: clamp(3.5rem, 8vw, var(--sp-9)); }
.section--alt { background: var(--bg-alt); }

.stack > * + * { margin-top: var(--sp-4); }

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--neon-soft);
    border: 1px solid var(--border-strong);
    padding: .5rem 1rem;
    border-radius: var(--r-pill);
}
.eyebrow .dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--c-success);
    box-shadow: 0 0 0 4px rgba(34, 197, 94, .22);
    animation: pulse 2s var(--ease) infinite;
}

.section-title { font-size: var(--fs-2xl); text-align: center; }
.section-lead {
    text-align: center;
    max-width: 60ch;
    margin: var(--sp-3) auto 0;
    color: var(--ink-muted);
    font-size: var(--fs-md);
}

/* ---------------------------------------------------------------------------
   6. SURFACES — cards & glass
--------------------------------------------------------------------------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: clamp(1.5rem, 3vw, 2rem);
    box-shadow: var(--shadow-sm);
    transition: transform var(--t) var(--ease-out),
                box-shadow var(--t) var(--ease-out),
                border-color var(--t) var(--ease-out);
}
.card--hover:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-strong);
}

.glass {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-lg);
}

.glow-text {
    background: var(--accent-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ---------------------------------------------------------------------------
   7. BUTTONS
--------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2);
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    font-weight: 700;
    line-height: 1;
    padding: 1rem 1.6rem;
    border-radius: var(--r-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
    transition: transform var(--t) var(--ease-out),
                box-shadow var(--t) var(--ease-out),
                background var(--t) var(--ease-out),
                color var(--t) var(--ease-out);
}
.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--accent-grad);
    color: var(--on-accent);
    box-shadow: 0 12px 30px var(--glow);
}
.btn-primary:hover {
    color: var(--on-accent);
    transform: translateY(-3px);
    box-shadow: 0 20px 44px var(--glow);
}

.btn-ghost {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    color: var(--accent);
    border-color: var(--border-strong);
}
.btn-ghost:hover { color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow-md); }

.btn-whatsapp { background: var(--c-whatsapp); color: #fff; }
.btn-whatsapp:hover { color: #fff; transform: translateY(-3px); box-shadow: 0 14px 30px rgba(37, 211, 102, .35); }

.btn-block { width: 100%; }

/* ---------------------------------------------------------------------------
   8. GRID HELPERS
--------------------------------------------------------------------------- */
.grid { display: grid; gap: clamp(1rem, 2.5vw, 1.5rem); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (min-width: 861px) and (max-width: 1080px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* ---------------------------------------------------------------------------
   9. MOTION — scroll reveal + keyframes
--------------------------------------------------------------------------- */
[data-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity var(--t-slow) var(--ease-out),
                transform var(--t-slow) var(--ease-out);
    transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-in { opacity: 1; transform: none; }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
    }
    [data-reveal] { opacity: 1; transform: none; }
}

/* ---------------------------------------------------------------------------
   10. UTILITIES
--------------------------------------------------------------------------- */
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.text-center { text-align: center; }
.muted { color: var(--ink-muted); }
.skip-link {
    position: absolute; left: var(--sp-3); top: -3rem;
    background: var(--accent); color: var(--on-accent);
    padding: .6rem 1rem; border-radius: var(--r-sm); z-index: var(--z-toast);
    transition: top var(--t) var(--ease);
}
.skip-link:focus { top: var(--sp-3); color: var(--on-accent); }