/* ==========================================================================
   Sitio público · Encuesta de Clima Laboral
   Lo que comparten la landing y las páginas de la encuesta: tokens de color y
   tipografía, base, controles y la barra superior translúcida.
   Prefijo lp-: componentes del sitio público.
   Tema único: café (Roasted Espresso). El sitio público no tiene modo claro.
   Colores y reglas de contraste: Tim Hortons Visual Identity 2025 (pp. 19, 29).
   ========================================================================== */

:root {
    /* Paleta primaria oficial */
    --th-always-red: #C8102E;
    --th-warm-red: #90102D;
    --th-rich-red: #5D0622;
    --th-fresh-white: #FFFFFF;
    --th-donut-cream: #EDDDCD;
    --th-french-vanilla: #DDCBA4;
    --th-roasted-espresso: #3F2021;

    /* Roles */
    --bg: var(--th-roasted-espresso);
    --ink: var(--th-fresh-white);
    --ink-2: var(--th-donut-cream);
    --accent: var(--th-always-red);
    --accent-hover: var(--th-warm-red);
    --accent-ink: var(--th-french-vanilla);
    --on-accent: var(--th-fresh-white);
    --band: var(--th-warm-red);
    --on-band: var(--th-fresh-white);
    --tile: var(--th-rich-red);
    --tile-ink: var(--th-fresh-white);
    --tile-accent: var(--th-french-vanilla); /* French Vanilla sobre Rich Red: combinación aprobada (p. 29) */
    --hairline: color-mix(in srgb, var(--th-donut-cream) 16%, transparent);
    --nav-bg: color-mix(in srgb, var(--th-roasted-espresso) 74%, transparent);
    --glass: color-mix(in srgb, var(--th-roasted-espresso) 62%, transparent);
    --glass-ink: var(--th-fresh-white);
    --logo-filter: brightness(0) invert(1);

    /* Tipografía: Brewed Black para titulares, Bold para subtítulos, Regular para texto */
    --font: var(--font-family-brand, 'Brewed', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
    --fs-display: clamp(3.25rem, 1.8rem + 6.6vw, 8rem);
    --fs-h2: clamp(2.25rem, 1.5rem + 3.4vw, 4.75rem);
    --fs-statement: clamp(2rem, 1.2rem + 3.6vw, 4.5rem);
    --fs-h3: clamp(1.375rem, 1.25rem + 0.5vw, 1.75rem);
    --fs-lead: clamp(1.25rem, 1.1rem + 0.55vw, 1.625rem);
    --fs-body: 1.125rem;
    --fs-small: 1rem; /* mínimo digital de la marca: 16px */

    /* Espacio */
    --section: clamp(5rem, 3.5rem + 7vw, 10rem);
    --radius-photo: clamp(20px, 1rem + 1.5vw, 32px);
    --radius-tile: clamp(24px, 1rem + 2vw, 40px);
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    color-scheme: dark;
}

@media (prefers-contrast: more) {
    :root {
        --ink-2: var(--ink);
        --hairline: var(--ink);
    }
}

/* --- Base ---------------------------------------------------------------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

/* hidden siempre oculta, aunque un componente declare su propio display */
[hidden] {
    display: none !important;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body.lp {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font);
    font-size: var(--fs-body);
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: clip;
}

/* Franja bajo la barra de estado del teléfono */
body.lp::before {
    content: "";
    position: fixed;
    inset: 0 0 auto;
    height: env(safe-area-inset-top, 0px);
    z-index: 30;
    background: var(--bg);
}

.lp img {
    max-width: 100%;
    display: block;
}

:where(.lp) a {
    color: inherit;
    -webkit-tap-highlight-color: transparent;
}

.lp :focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 3px;
}

.lp-wrap {
    width: 100%;
    max-width: calc(1200px + 4rem);
    margin-inline: auto;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
}

.lp-wrap--wide {
    max-width: calc(1280px + 4rem);
}

@media (min-width: 768px) {
    .lp-wrap {
        padding-left: max(2rem, env(safe-area-inset-left, 0px));
        padding-right: max(2rem, env(safe-area-inset-right, 0px));
    }
}

.lp-logo {
    height: auto;
    filter: var(--logo-filter);
}

/* --- Tipografía ---------------------------------------------------------- */

.lp-display,
.lp-h2,
.lp-h3,
.lp-statement {
    margin: 0;
    text-wrap: balance;
}

.lp-display {
    font-size: var(--fs-display);
    font-weight: 900;
    line-height: 0.98;
    letter-spacing: -0.02em;
}

.lp-display > span {
    display: block;
}

.lp-h2 {
    font-size: var(--fs-h2);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.015em;
}

.lp-h3 {
    font-size: var(--fs-h3);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.01em;
}

.lp-eyebrow {
    margin: 0 0 1.25rem;
    font-size: var(--fs-small);
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--accent-ink);
}

.lp-lead {
    margin: 0;
    max-width: 34ch;
    font-size: var(--fs-lead);
    line-height: 1.35;
    color: var(--ink-2);
    text-wrap: pretty;
}

/* --- Controles ----------------------------------------------------------- */

.lp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3.25rem;
    padding: 0.875rem 1.75rem;
    border-radius: 999px;
    background: var(--accent);
    color: var(--on-accent);
    font-size: 1.0625rem;
    font-weight: 700;
    letter-spacing: 0.005em;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    transition: background-color 160ms ease, transform 100ms ease-out;
}

.lp-btn:hover {
    background: var(--accent-hover);
}

/* Respuesta en el instante del toque, no al soltar */
.lp-btn:active {
    transform: scale(0.97);
}

button.lp-btn {
    border: 0;
    font-family: inherit;
    cursor: pointer;
}

/* Deshabilitado: crema tenue, no un rojo apagado que parezca error */
.lp-btn:disabled,
.lp-btn[aria-disabled="true"],
.lp-btn:disabled:hover {
    background: color-mix(in srgb, var(--th-donut-cream) 14%, transparent);
    color: color-mix(in srgb, var(--th-donut-cream) 55%, transparent);
    cursor: not-allowed;
    transform: none;
}

.lp-btn--block {
    width: 100%;
}

.lp-btn--sm {
    min-height: 2.25rem;
    padding: 0.5rem 1rem;
    font-size: var(--fs-small);
}

.lp-btn--lg {
    min-height: 3.75rem;
    padding: 1.125rem 2.25rem;
    font-size: 1.1875rem;
}

.lp-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    min-height: 3.25rem;
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--accent-ink);
    text-decoration: none;
}

.lp-link:hover {
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.lp-link__chevron {
    width: 1rem;
    height: 1rem;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 160ms var(--ease-out);
}

.lp-link:hover .lp-link__chevron {
    transform: translateX(2px);
}

.lp-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 2rem;
}

.lp-actions--center {
    justify-content: center;
}

/* --- Navegación: material translúcido, el contenido pasa por debajo ------ */

.lp-nav {
    position: sticky;
    top: env(safe-area-inset-top, 0px);
    z-index: 20;
    background: var(--nav-bg);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--hairline);
}

/* El filo aparece solo cuando hay contenido debajo */
@supports (animation-timeline: scroll()) {
    .lp-nav {
        border-bottom-color: transparent;
        animation: lp-nav-edge linear both;
        animation-timeline: scroll(root);
        animation-range: 0 48px;
    }
}

@keyframes lp-nav-edge {
    to { border-bottom-color: var(--hairline); }
}

.lp-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 4rem;
}

.lp-nav__brand {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.lp-nav__brand .lp-logo {
    width: 128px;
}

.lp-nav__title {
    display: none;
    padding-left: 1rem;
    border-left: 1px solid var(--hairline);
    font-size: 1.0625rem;
    font-weight: 700;
    line-height: 1.5rem;
    color: var(--ink);
}

.lp-nav__actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.lp-nav__link {
    display: none;
    font-size: var(--fs-small);
    color: var(--ink-2);
    text-decoration: none;
    transition: color 160ms ease;
}

.lp-nav__link:hover {
    color: var(--ink);
}

@media (min-width: 640px) {
    .lp-nav__title,
    .lp-nav__link {
        display: inline-block;
    }
}

@media (min-width: 1024px) {
    .lp-nav__inner {
        min-height: 4.75rem;
    }
    .lp-nav__brand .lp-logo {
        width: 152px;
    }
}

/* --- Accesibilidad ------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .lp-btn,
    .lp-link__chevron {
        transition: none;
    }
}

@media (prefers-reduced-transparency: reduce) {
    .lp-nav {
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
        background: var(--bg);
    }
}