/* ==========================================================================
   Project: Interactive Rating Component
   Author: Your Name
   File: style.css
   Description:
     - Mobile-first, fluid-responsive CSS
     - WCAG 2.2 AA (POUR principles) focused
     - Uses clamp(), min(), max() for intrinsic scaling
     - Built with Flexbox & Grid; minimal media queries for layout shifts
     - Style guide: mobile 375px, desktop 1440px; Overpass (400,700)
   References:
     - desktop-design.jpg, mobile-design.jpg, active-states.jpg
   ========================================================================== */

/* ========== 1. Root variables & global reset ========== */
:root {
    --clr-orange-500: hsl(25, 97%, 53%);
    --clr-white: hsl(0, 0%, 100%);
    --clr-grey-500: hsl(217, 12%, 63%);
    --clr-grey-900: hsl(213, 19%, 18%);
    --clr-grey-950: hsl(216, 12%, 8%);

    /* === New tone for subtle UI backgrounds === */
    --clr-grey-800: hsl(213, 19%, 23%);
    --clr-border-light: rgba(255, 255, 255, 0.04);
    --focus-ring-color: rgba(0, 95, 204, 0.12);
    --focus-ring-width: 4px;

    --radius: 1.5rem;
    --radius-sm: 1rem;
    --shadow-1: 0 1rem 2rem rgba(0, 0, 0, 0.15);
    --transition: 250ms ease;
    --focus-outline: 3px solid #005fcc;
    --focus-offset: 3px;



    /* base fluid scale hints (optional tokens for reference) */
    --type-scale-sm: clamp(0.875rem, 1vw + 0.2rem, 1rem);
    /* ~14-16px */
    --type-scale-md: clamp(1rem, 1.2vw + 0.4rem, 1.125rem);
    /* ~16-18px */
    --type-scale-lg: clamp(1.5rem, 2vw + 1rem, 2rem);
    /* headings */

}

/* Box model & reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Ensure hidden elements remain hidden, even if styled elsewhere */


html {
    font-size: clamp(100%, 1vw + 0.5rem, 112.5%);
    /* 16px base */
    scroll-behavior: smooth;
}

body {
    font-family: 'Overpass', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    font-weight: 400;
    color: var(--clr-white);
    background-color: var(--clr-grey-950);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* ========== 2. Accessibility utilities ========== */

/* Screen-reader only utility (keeps content for AT) */
.sr-only,
.visually-hidden {
    position: absolute;
    width: 0.0625rem;
    /* 1px / 16 = 0.0625rem */
    height: 0.0625rem;
        /* 1px ÷ 16 = 0.0625rem */
    padding: 0;
    margin: -0.0625rem;
        /* -1px ÷ 16 = -0.0625rem */
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* Respect user's reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    :root {
        --transition: 1ms;
    }

    * {
        animation-duration: 0.001ms;
        transition-duration: 0.001ms;
        animation-iteration-count: 1;
    }
}

/* Honor high contrast mode where supported */
@media (prefers-contrast: more) {
    * {
        outline-style: auto;
    }
}

/* Focus styles (keyboard users) */
:focus {
    outline: none;
}

:focus-visible {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
    border-radius: 0.375rem;
}

/* Minimum hit area for motor accessibility */
button,
a,
input {
    min-width: 2.75rem; /* 44px ÷ 16 = 2.75rem */
    min-height: 2.75rem; /* 44px ÷ 16 = 2.75rem */
    /* min-height: 44px; */
    touch-action: manipulation;
}

/* ========== 3. Page & container layout (mobile-first) ========== */

/* Centering container with fluid padding that keeps content centered on large screens */
.page {
    width: 100%;
    padding-inline: max(1rem, (100% - 60rem) / 2);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

/* Card: mobile-first fluid sizing */
.card {
    width: 100%;
    max-width: 26rem;
    /* design target */
    margin-inline: auto;
    padding: clamp(1.25rem, 5vw, 2.25rem);
    background-color: var(--clr-grey-900);
    border-radius: var(--radius);
    box-shadow: var(--shadow-1);
    display: flex;
    flex-direction: column;
    gap: clamp(0.75rem, 2vw, 1.25rem);
}



/* Header icon container */
.card__header {
    display: flex;
    align-items: flex-start;
}

.card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--clr-grey-800);
    /* slightly lighter than card bg */
    border-radius: 50%;
    width: clamp(2.5rem, 4vw + 1rem, 3rem);
    height: clamp(2.5rem, 4vw + 1rem, 3rem);
}

/* Icon sizing (decorative) */
.card__icon img {
    display: block;
    width: clamp(1rem, 2vw + 0.2rem, 1.25rem);
    height: auto;
}

/* ========== 4. Typography (fluid with clamp) ========== */


.card__title {
    font-size: var(--type-scale-lg);
    font-weight: 700;
    line-height: 1.2;
    margin-block-end: 0.25rem;
    text-align: left;
}

.card__description {
    font-size: var(--type-scale-sm);
    color: var(--clr-grey-500);
    margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
    max-width: 50ch;
    /* cognitive accessibility: optimal line length */
}

/* Attribution small text */
.attribution {
    font-size: clamp(0.6875rem, 0.6vw + 0.4rem, 0.8125rem);
    color: var(--clr-grey-500);
    text-align: center;
}

/* ========== 5. Rating controls (Flexbox, motor accessibility) ========== */

.card__rating-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* gap: clamp(0.5rem, 1vw, 0.75rem); */
    flex-wrap: nowrap;
    /* keep all 5 on one line */
    margin-bottom: clamp(1rem, 2vw, 1.5rem);

}

/* Rating button: circular, large hit target, fluid size */
.card__rating-btn {
    appearance: none;
    -webkit-appearance: none;
    border-radius: 50%;
    display: inline-grid;
    place-items: center;
    cursor: pointer;

    /* Intrinsic sizing */
    width: clamp(2.5rem, 6vw, 3rem);
    height: clamp(2.5rem, 6vw, 3rem);
    font-size: clamp(0.875rem, 1vw, 1rem);

    /* Colors */
    background-color: var(--clr-grey-800);
    /* ✅ defined in :root */
    color: var(--clr-grey-500);
    border: 1px solid var(--clr-border-light);

    /* Motion */
    transition:
        background-color var(--transition),
        color var(--transition),
        transform var(--transition);
}

/* Hover & focus (paired – avoid hover-only) */
.card__rating-btn:hover,
.card__rating-btn:focus-visible {
    background-color: var(--clr-orange-500);
    color: var(--clr-white);
    transform: translateY(-2px);
    border-color: transparent;
}

/* Selected state indicated with aria-pressed attribute */
.card__rating-btn[aria-pressed="true"] {
    background-color: var(--clr-white);
    color: var(--clr-grey-900);
    transform: none;
}

/* Provide visible focus ring for keyboard users */
.card__rating-btn:focus-visible {
    box-shadow: 0 0 0 var(--focus-ring-width) var(--focus-ring-color);
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

/* Ensure contrast: text inside button has adequate contrast against backgrounds */
.card__rating-label {
    display: inline-block;
}

/* ========== 6. Submit CTA (prominent & accessible) ========== */

.card__actions {
    width: 100%;
}

.card__form {
    display: block;
}

.card__submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: clamp(0.6rem, 1.2vw, 0.95rem);
    font-weight: 700;
    font-size: clamp(0.875rem, 1vw, 1rem);
    /* color: var(--clr-white); */

    background-color: var(--clr-orange-500);
    border: none;
    border-radius: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    cursor: pointer;
    transition: background-color var(--transition), transform var(--transition);
}

/* Hover and focus */
.card__submit:hover,
.card__submit:focus-visible {
    background-color: var(--clr-white);
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(37, 31, 28, 0.12);
}

/* Disabled state if needed (for JS to set) */
.card__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    background-color: rgba(255, 165, 0, 0.6);
}

/* ========== 7. Thank-you state (centered using Grid) ========== */

.card--thankyou {
    display: grid;
    place-items: center;
    text-align: center;
    padding: clamp(1.25rem, 4vw, 2.25rem);
}

/* =========================
   7B. Hidden state handling (Frontend Mentor–safe)
   ========================= */

/* Hide thank-you card when [hidden] attribute is present */
.card--thankyou[hidden] {
    display: none;
}

/* Hide rating card when [hidden] attribute is present */
.card--rating[hidden] {
    display: none;
}

.card__illustration,
.card__title--thankyou {
    display: flex;
    justify-content: center;
}

.card__illustration img {
    width: clamp(6rem, 24vw, 10rem);
    height: auto;
    margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
}

.card__selected {
    display: inline-block;
    background-color: var(--clr-grey-900);
    color: var(--clr-orange-500);
    border-radius: 2rem;
    padding: 0.45rem 0.9rem;
    font-size: clamp(0.75rem, 0.8vw + 0.2rem, 0.9rem);
    margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
}

/* Thank-you heading */
.card__title--thankyou {
    font-size: clamp(1.25rem, 1.6vw + 0.8rem, 1.75rem);
    margin-bottom: 0.25rem;
}

/* ========== 8. Cognitive accessibility helpers & spacing ========== */

/* Predictable spacing for sections */
section {
    margin-bottom: 1.25rem;
}

/* Reduce distractions: secondary content visual de-emphasis */
.secondary-content {
    opacity: 0.95;
}

/* Maintain readable measures */
.content,
.card__description {
    max-width: 70ch;
}

/* ========== 9. Large-screen adjustments (mobile-first -> desktop) ========== */

/* Use a desktop media query only for layout shifts and larger paddings */
@media (min-width: 48rem) {
    .card {
        padding: clamp(1.75rem, 3.5vw, 3rem);
        gap: clamp(1rem, 1.5vw, 1.5rem);
        /* max-width: 28.5rem; */
        /* slightly larger on desktop */
    }

    .card__header {
        align-items: center;
    }

    .card__title {
        text-align: left;
    }

    .card__rating-group {
        gap: clamp(0.75rem, 1.2vw, 1.25rem);
        justify-content: space-between;
    }

    .card__rating-btn {
        width: clamp(3rem, 7vw, 3.5rem);
        height: clamp(3rem, 7vw, 3.5rem);
        font-size: clamp(1rem, 1.2vw, 1.125rem);
    }
}

/* Additional layout tweak for very large viewports to avoid overly wide content */
@media (min-width: 90rem) {
    .card {
        max-width: min(32rem, 34rem);
    }
}

/* ========== 10. Edge-case & utility rules ========== */

/* Prevent images from causing overflow */


/* Prevent horizontal scroll due to long words */
html,
body {
    overflow-x: hidden;
}

/* Utility: muted text */
.text-muted {
    color: var(--clr-grey-500);
}

/* Utility: center block */
.u-center {
    margin-inline: auto;
    text-align: center;
}