/* ==========================================================================
   EyeSetu design tokens. Colours, fonts, sizes and spacing come ONLY from here;
   site.css never uses a raw colour or size. Palette, gradient and type matched to
   eyesetu.co.in and the client's page prototype (business decision): deep forest,
   signal green and gold on warm parchment; Playfair Display headlines, Inter body.
   ========================================================================== */

@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("../fonts/inter-var-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("../fonts/inter-var-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Playfair Display"; font-style: normal; font-weight: 400 900; font-display: swap; src: url("../fonts/playfair-var-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Playfair Display"; font-style: normal; font-weight: 400 900; font-display: swap; src: url("../fonts/playfair-var-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Playfair Display"; font-style: italic; font-weight: 400 900; font-display: swap; src: url("../fonts/playfair-var-italic-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Playfair Display"; font-style: italic; font-weight: 400 900; font-display: swap; src: url("../fonts/playfair-var-italic-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Inter Fallback"; src: local("Arial"); size-adjust: 107%; ascent-override: 90%; descent-override: 22%; line-gap-override: 0%; }
@font-face { font-family: "Playfair Fallback"; src: local("Georgia"); size-adjust: 104%; }

:root {
	/* ---- Colour: eyesetu.co.in's own greens (its theme: primary hsl(150 45% 25%) = #235c40, foreground
	   hsl(150 30% 15%) = #1b3226, dark #0b1f0e, signal #12a05c). The doctor's choice, 2026-10-07. ---- */
	--green-950: #0b1f0e;
	--green-900: #122619;
	--green-800: #164029;
	--green-700: #1b3226;
	--green-600: #235c40;
	--green-500: #3a7859;
	--green-400: #5aa877;
	--green-300: #93c7a6;
	--green-200: #bfdcc8;
	--green-100: #dcece1;
	--green-50: #eef6f0;

	/* Signal green, eyesetu.co.in's accent (#12a05c, for underlines/icons); small text uses the 600 step (5.1:1). */
	--emerald-700: #0a6b3c;
	--emerald-600: #0c7f47;
	--emerald-500: #12a05c;
	--emerald-100: #cdebdb;
	--emerald-50: #e8f7f0;

	/* Gold / clay: eyesetu.co.in's badge + accent-line colour (#c9913a) and the prototype's eyebrow clay. */
	--amber-700: #8f5526;
	--amber-600: #c9913a;
	--amber-200: #ecd3a8;
	--amber-50: #fbf3e3;

	/* Neutrals from eyesetu.co.in's theme (border hsl(150 15% 88%), muted hsl(150 15% 95%)). */
	--ink-900: #1f2a24;
	--ink-700: #45524b;
	--ink-500: #4f6e5f;
	--ink-300: #b4c2ba;
	--ink-200: #dce5e0;
	--ink-100: #e7eeea;
	--ink-50: #f0f4f2;
	--parchment: #ffffff; /* 2026-10-07: white pages like eyesetu.co.in (was warm #f4f0ea) */
	--card: #ffffff;
	--white: #ffffff;

	/* ---- Gradients (eyesetu.co.in) ---------------------------------------------- */
	--gradient-accent: linear-gradient(90deg, var(--amber-600), var(--emerald-500));
	--gradient-scrim: linear-gradient(to bottom, rgba(11, 31, 14, 0.62), rgba(11, 31, 14, 0.5) 50%, rgba(11, 31, 14, 0.74));
	--gradient-forest: radial-gradient(circle at 80% 15%, rgba(255, 255, 255, 0.08), transparent 55%), linear-gradient(160deg, var(--green-800), var(--green-950));

	/* ---- Semantic roles ----------------------------------------------------- */
	--color-bg: var(--parchment);
	--color-bg-soft: var(--ink-50);
	--color-surface: var(--card);
	--color-bg-dark: var(--green-950);
	--color-text: var(--ink-900);
	--color-text-soft: var(--ink-700);
	--color-text-muted: var(--ink-500);
	--color-text-on-dark: var(--white);
	--color-text-muted-on-dark: var(--green-200);
	--color-heading: var(--green-700);
	--color-eyebrow: var(--emerald-600);
	--color-link: var(--green-600);
	--color-link-hover: var(--green-800);
	--color-brand: var(--green-600);
	--color-brand-dark: var(--green-950);
	--color-signal: var(--emerald-500);
	/* One button colour everywhere (eyesetu.co.in): forest green. */
	--color-button: #235c40;
	--color-button-hover: #1a4631;
	--color-button-shadow: rgba(35, 92, 64, 0.5);
	--color-cta: var(--color-button);

	/* Ad landing page (/lp/): same green system as the rest of the site (2026-10-07; was the logo navy/teal). */
	--lp-ink: var(--green-700);
	--lp-badge: var(--emerald-600);
	--lp-button: var(--color-button);
	--lp-button-hover: var(--color-button-hover);
	--lp-tint: var(--ink-50);
	--lp-shadow: rgba(27, 50, 38, 0.12);
	--gradient-lp: radial-gradient(circle at 85% 10%, rgba(255, 255, 255, 0.08), transparent 55%), linear-gradient(135deg, var(--green-700) 0%, var(--green-950) 100%);
	--color-cta-hover: var(--color-button-hover);
	--color-border: var(--ink-200);
	--color-border-soft: var(--ink-100);
	--color-border-on-dark: rgba(255, 255, 255, 0.2);
	--color-focus: var(--green-500);
	--color-focus-on-dark: var(--white);
	--color-whatsapp: #25d366;
	--color-whatsapp-text: #06381f;
	--color-danger: #a23b2e;
	--color-danger-bg: var(--amber-50);

	/* ---- Typography --------------------------------------------------------- */
	--font-display: "Playfair Display", "Playfair Fallback", Georgia, "Times New Roman", serif;
	--font-body: "Inter", "Inter Fallback", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;

	--fs-h1: clamp(2.125rem, 1.5rem + 2.8vw, 3.5rem);
	--fs-h2: clamp(1.625rem, 1.3rem + 1.4vw, 2.375rem);
	--fs-h3: clamp(1.125rem, 1.05rem + 0.3vw, 1.3125rem);
	--fs-lead: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
	--fs-body: 1rem;
	--fs-small: 0.875rem;
	--fs-eyebrow: 0.84375rem;
	--lh-tight: 1.12;
	--lh-body: 1.6;

	/* ---- Spacing (4px base) -------------------------------------------------- */
	--space-1: 0.25rem;
	--space-2: 0.5rem;
	--space-3: 0.75rem;
	--space-4: 1rem;
	--space-5: 1.5rem;
	--space-6: 2rem;
	--space-7: 3rem;
	--space-8: 4rem;
	--space-9: 6rem;
	--section-y: clamp(3.5rem, 7vw, 5.5rem);

	/* ---- Shape --------------------------------------------------------------- */
	--radius-sm: 4px;
	--radius: 10px;
	--radius-lg: 14px;
	--radius-pill: 999px;
	--shadow-1: 0 1px 2px rgba(27, 50, 38, 0.06), 0 4px 14px rgba(27, 50, 38, 0.06);
	--shadow-2: 0 18px 44px rgba(11, 31, 14, 0.18);

	/* ---- Layout ---------------------------------------------------------------- */
	--wrap: 1160px;
	--wrap-wide: 1320px;
	--wrap-narrow: 760px;
	--gutter: clamp(1.125rem, 4vw, 2rem);
	--header-h: 76px;
	--tap: 48px;

	/* ---- Motion ---------------------------------------------------------------- */
	--ease: cubic-bezier(0.2, 0, 0, 1);
	--dur-fast: 120ms;
	--dur: 200ms;

	--z-header: 50;
	--z-dialog: 100;
}