/*
Theme Name: PhotoToolKit
Theme URI: https://example.com
Author: Your Brand
Author URI: https://example.com
Description: A fast, privacy-first image compression toolkit. Every compression happens in the visitor's browser — no image is ever uploaded to a server. Built for a single focused tool (compress to an exact KB target) with a clean, easily rebrandable design.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Tested up to: 6.6
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: phototoolkit
*/

/* ==========================================================================
   0. Design tokens
   All brand color / spacing values live here as CSS custom properties.
   functions.php also prints an inline override block sourced from the
   Customizer, so site owners can rebrand without editing this file.
   ========================================================================== */
:root{
  /* Palette */
  --ptk-paper:        #F4F6F6;   /* page background: cool, pale */
  --ptk-surface:       #FFFFFF;  /* panels / cards */
  --ptk-surface-alt:   #ECEFEF;  /* subtle recessed areas (drop zone, table stripe) */
  --ptk-ink:            #10181E; /* primary text */
  --ptk-ink-muted:      #526066; /* secondary text */
  --ptk-border:         #D8DEDE; /* hairline borders */
  --ptk-border-strong:  #B7C0C0;

  --ptk-primary:        #0F6E8C; /* signal teal — primary actions */
  --ptk-primary-ink:    #FFFFFF;
  --ptk-primary-hover:  #0C5A72;
  --ptk-primary-tint:   #E3EFF2;

  --ptk-success:        #1F8A55; /* used only for "saved" figures */
  --ptk-success-tint:   #E5F3EC;
  --ptk-warn:           #B4531F;
  --ptk-warn-tint:      #F7EAE1;

  --ptk-focus:          var(--ptk-primary); /* kept in sync with the brand color via customizer.php */

  /* Type */
  --ptk-font-sans: 'Manrope', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --ptk-font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Layout */
  --ptk-container: 1120px;
  --ptk-container-narrow: 760px;
  --ptk-radius-sm: 6px;
  --ptk-radius-md: 10px;
  --ptk-gutter: clamp(1rem, 4vw, 2.5rem);
  --ptk-section-space: clamp(3rem, 8vw, 6rem);
}

@media (prefers-color-scheme: dark){
  :root:not([data-ptk-theme="light"]){
    --ptk-paper:       #0F1416;
    --ptk-surface:      #161D20;
    --ptk-surface-alt:  #1D2528;
    --ptk-ink:           #EAF0F0;
    --ptk-ink-muted:     #9DACB0;
    --ptk-border:        #2A3438;
    --ptk-border-strong: #3A4448;
    --ptk-primary:       #3FA9C9;
    --ptk-primary-ink:   #05191F;
    --ptk-primary-hover: #58B9D6;
    --ptk-primary-tint:  #16292E;
    --ptk-success:       #4FC98A;
    --ptk-success-tint:  #16261F;
    --ptk-warn:          #E08A55;
    --ptk-warn-tint:     #2A1D14;
  }
}

/* ==========================================================================
   1. Reset & base
   ========================================================================== */
*, *::before, *::after{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
body{
  margin: 0;
  background: var(--ptk-paper);
  color: var(--ptk-ink);
  font-family: var(--ptk-font-sans);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg{ max-width: 100%; height: auto; display: block; }
a{ color: var(--ptk-primary); text-decoration-thickness: 1.5px; text-underline-offset: 2px; }
a:hover{ color: var(--ptk-primary-hover); }
h1,h2,h3,h4{ font-weight: 700; line-height: 1.15; margin: 0 0 0.6em; letter-spacing: -0.01em; }
h1{ font-size: clamp(2rem, 4.5vw, 3.2rem); }
h2{ font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3{ font-size: 1.2rem; }
p{ margin: 0 0 1em; }
p:last-child{ margin-bottom: 0; }
ul,ol{ padding-left: 1.25em; }
button{ font-family: inherit; }
input, select, textarea{ font-family: inherit; font-size: 1rem; }
:focus-visible{ outline: 3px solid var(--ptk-focus); outline-offset: 2px; }
.ptk-skip-link{
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--ptk-ink); color: #fff; padding: 0.75em 1.25em; border-radius: 0 0 var(--ptk-radius-sm) 0;
}
.ptk-skip-link:focus{ left: 0; }
.ptk-visually-hidden{
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ==========================================================================
   2. Layout helpers
   ========================================================================== */
.ptk-container{ max-width: var(--ptk-container); margin-inline: auto; padding-inline: var(--ptk-gutter); }
.ptk-container--narrow{ max-width: var(--ptk-container-narrow); }
.ptk-section{ padding-block: var(--ptk-section-space); }
.ptk-section--alt{ background: var(--ptk-surface); border-block: 1px solid var(--ptk-border); }
.ptk-eyebrow{ font-size: 0.9rem; color: var(--ptk-ink-muted); margin: 0 0 0.5em; }

/* ==========================================================================
   3. Site header / nav
   ========================================================================== */
.ptk-header{
  border-bottom: 1px solid var(--ptk-border);
  background: var(--ptk-surface);
  position: sticky; top: 0; z-index: 40;
}
.ptk-header__inner{
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 0.9rem;
}
.ptk-brand{
  display: flex; align-items: center; gap: 0.6rem;
  font-weight: 800; font-size: 1.15rem; color: var(--ptk-ink); text-decoration: none;
}
.ptk-brand:hover{ color: var(--ptk-ink); }
.ptk-brand__mark{
  width: 30px; height: 30px; border-radius: var(--ptk-radius-sm);
  background: var(--ptk-primary); color: var(--ptk-primary-ink);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--ptk-font-mono); font-weight: 700; font-size: 0.85rem;
  flex-shrink: 0;
}
.ptk-brand img.ptk-brand__logo{ max-height: 32px; width: auto; }

.ptk-nav{ display: flex; align-items: center; gap: 1.75rem; }
.ptk-nav__list{ list-style: none; display: flex; gap: 1.5rem; margin: 0; padding: 0; }
.ptk-nav__list a{
  color: var(--ptk-ink); text-decoration: none; font-weight: 600; font-size: 0.95rem;
}
.ptk-nav__list a:hover{ color: var(--ptk-primary); }
.ptk-nav__cta{
  display: inline-flex; align-items: center; gap: 0.4em;
  background: var(--ptk-primary); color: var(--ptk-primary-ink) !important;
  padding: 0.55em 1.1em; border-radius: var(--ptk-radius-sm);
  font-weight: 700; font-size: 0.9rem; text-decoration: none !important;
}
.ptk-nav__cta:hover{ background: var(--ptk-primary-hover); }

.ptk-nav-toggle{
  display: none; background: none; border: 1px solid var(--ptk-border-strong);
  border-radius: var(--ptk-radius-sm); padding: 0.5em 0.6em; cursor: pointer;
}
.ptk-nav-toggle span, .ptk-nav-toggle::before, .ptk-nav-toggle::after{
  content: ""; display: block; width: 20px; height: 2px; background: var(--ptk-ink); margin: 4px 0;
}

@media (max-width: 780px){
  .ptk-nav-toggle{ display: block; }
  .ptk-nav{
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--ptk-surface); border-bottom: 1px solid var(--ptk-border);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 0.5rem var(--ptk-gutter) 1rem;
    display: none;
  }
  .ptk-nav.is-open{ display: flex; }
  .ptk-nav__list{ flex-direction: column; gap: 0; }
  .ptk-nav__list a{ display: block; padding: 0.75em 0; border-bottom: 1px solid var(--ptk-border); }
  .ptk-nav__cta{ margin-top: 0.75em; justify-content: center; }
}

/* ==========================================================================
   4. Buttons & form controls (shared)
   ========================================================================== */
.ptk-btn{
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  border-radius: var(--ptk-radius-sm); border: 1px solid transparent;
  padding: 0.75em 1.4em; font-weight: 700; font-size: 0.98rem; cursor: pointer;
  text-decoration: none; line-height: 1.2;
}
.ptk-btn--primary{ background: var(--ptk-primary); color: var(--ptk-primary-ink); }
.ptk-btn--primary:hover{ background: var(--ptk-primary-hover); color: var(--ptk-primary-ink); }
.ptk-btn--primary:disabled{ background: var(--ptk-border-strong); color: var(--ptk-ink-muted); cursor: not-allowed; }
.ptk-btn--outline{ background: transparent; border-color: var(--ptk-border-strong); color: var(--ptk-ink); }
.ptk-btn--outline:hover{ border-color: var(--ptk-primary); color: var(--ptk-primary); }
.ptk-btn--block{ width: 100%; }

.ptk-field{ margin-bottom: 1.1rem; }
.ptk-field label{ display: block; font-weight: 700; font-size: 0.92rem; margin-bottom: 0.4em; }
.ptk-field input[type="text"],
.ptk-field input[type="email"],
.ptk-field input[type="number"],
.ptk-field textarea{
  width: 100%; padding: 0.7em 0.85em; border: 1px solid var(--ptk-border-strong);
  border-radius: var(--ptk-radius-sm); background: var(--ptk-surface); color: var(--ptk-ink);
}
.ptk-field textarea{ min-height: 140px; resize: vertical; }
.ptk-field .ptk-hint{ font-size: 0.85rem; color: var(--ptk-ink-muted); margin-top: 0.35em; }

/* ==========================================================================
   5. Hero (homepage) — the working tool IS the hero
   ========================================================================== */
.ptk-hero{ padding-block: clamp(2.5rem, 6vw, 4.5rem) var(--ptk-section-space); }
.ptk-hero__grid{
  display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: clamp(2rem, 5vw, 4rem); align-items: start;
}
@media (max-width: 900px){ .ptk-hero__grid{ grid-template-columns: 1fr; } }
.ptk-hero__title{ margin-bottom: 0.5em; }
.ptk-hero__lede{ font-size: 1.15rem; color: var(--ptk-ink-muted); max-width: 42ch; margin-bottom: 1.5em; }
.ptk-hero__stats{ display: flex; gap: 2rem; flex-wrap: wrap; margin-top: 2rem; }
.ptk-hero__stat b{ display: block; font-family: var(--ptk-font-mono); font-size: 1.4rem; }
.ptk-hero__stat span{ font-size: 0.85rem; color: var(--ptk-ink-muted); }

/* ==========================================================================
   6. Compressor widget (reused on homepage + /compressor/)
   ========================================================================== */
.ptk-tool{
  background: var(--ptk-surface); border: 1px solid var(--ptk-border);
  border-radius: var(--ptk-radius-md); padding: clamp(1.1rem, 3vw, 1.75rem);
}
.ptk-tool__drop{
  border: 1.5px dashed var(--ptk-border-strong); border-radius: var(--ptk-radius-md);
  background: var(--ptk-surface-alt); padding: clamp(1.75rem, 5vw, 2.75rem) 1.25rem;
  text-align: center; cursor: pointer; transition: border-color .15s ease, background .15s ease;
}
.ptk-tool__drop:hover, .ptk-tool__drop.is-dragover{
  border-color: var(--ptk-primary); background: var(--ptk-primary-tint);
}
.ptk-tool__drop-icon{ font-size: 2rem; margin-bottom: 0.4em; }
.ptk-tool__drop-title{ font-weight: 700; margin-bottom: 0.25em; }
.ptk-tool__drop-sub{ color: var(--ptk-ink-muted); font-size: 0.9rem; }
.ptk-tool__input{ position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; }

.ptk-tool__section-label{ font-weight: 700; font-size: 0.92rem; margin: 1.5rem 0 0.6rem; }
.ptk-tool__presets{ display: flex; flex-wrap: wrap; gap: 0.55rem; }
.ptk-chip{
  border: 1px solid var(--ptk-border-strong); background: var(--ptk-surface);
  color: var(--ptk-ink); border-radius: 999px; padding: 0.5em 1.05em;
  font-family: var(--ptk-font-mono); font-size: 0.92rem; font-weight: 600; cursor: pointer;
}
.ptk-chip:hover{ border-color: var(--ptk-primary); }
.ptk-chip[aria-pressed="true"]{
  background: var(--ptk-primary); border-color: var(--ptk-primary); color: var(--ptk-primary-ink);
}
.ptk-tool__custom{ display: flex; align-items: center; gap: 0.6rem; margin-top: 0.7rem; flex-wrap: wrap; }
.ptk-tool__custom input{
  width: 7.5em; padding: 0.5em 0.7em; border: 1px solid var(--ptk-border-strong);
  border-radius: var(--ptk-radius-sm); font-family: var(--ptk-font-mono);
}
.ptk-tool__custom label{ font-size: 0.92rem; font-weight: 600; }

.ptk-tool__formats{ display: flex; gap: 0.5rem; flex-wrap: wrap; }
.ptk-radio-chip{ display: inline-flex; }
.ptk-radio-chip input{ position: absolute; opacity: 0; width: 1px; height: 1px; }
.ptk-radio-chip span{
  display: inline-block; border: 1px solid var(--ptk-border-strong); border-radius: var(--ptk-radius-sm);
  padding: 0.5em 1em; font-weight: 700; font-size: 0.88rem; cursor: pointer;
}
.ptk-radio-chip input:checked + span{ background: var(--ptk-primary); border-color: var(--ptk-primary); color: var(--ptk-primary-ink); }
.ptk-radio-chip input:focus-visible + span{ outline: 3px solid var(--ptk-focus); outline-offset: 2px; }

.ptk-tool__actions{ margin-top: 1.5rem; display: flex; gap: 0.75rem; flex-wrap: wrap; }

.ptk-tool__status{ margin-top: 1rem; font-size: 0.92rem; color: var(--ptk-ink-muted); min-height: 1.3em; }
.ptk-tool__status[data-state="error"]{ color: var(--ptk-warn); }

.ptk-result{ margin-top: 1.75rem; border-top: 1px solid var(--ptk-border); padding-top: 1.5rem; }
.ptk-result__previews{ display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.25rem; }
@media (max-width: 520px){ .ptk-result__previews{ grid-template-columns: 1fr; } }
.ptk-result__preview{ text-align: center; }
.ptk-result__preview figure{ margin: 0; }
.ptk-result__preview img{
  border: 1px solid var(--ptk-border); border-radius: var(--ptk-radius-sm);
  max-height: 220px; width: 100%; object-fit: contain; background: var(--ptk-surface-alt);
}
.ptk-result__preview figcaption{ font-size: 0.85rem; color: var(--ptk-ink-muted); margin-top: 0.4em; }

.ptk-result__bars{ margin-bottom: 1.25rem; }
.ptk-result__bar-row{ display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.55rem; }
.ptk-result__bar-label{ width: 5.5em; font-size: 0.85rem; color: var(--ptk-ink-muted); flex-shrink: 0; }
.ptk-result__bar-track{ flex: 1; background: var(--ptk-surface-alt); border-radius: 999px; height: 10px; overflow: hidden; }
.ptk-result__bar-fill{ height: 100%; border-radius: 999px; background: var(--ptk-ink-muted); }
.ptk-result__bar-fill--new{ background: var(--ptk-success); }
.ptk-result__bar-value{ width: 5.5em; text-align: right; font-family: var(--ptk-font-mono); font-size: 0.88rem; flex-shrink: 0; }

.ptk-stat-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-bottom: 1.25rem; }
@media (max-width: 520px){ .ptk-stat-grid{ grid-template-columns: 1fr; } }
.ptk-stat{
  border: 1px solid var(--ptk-border); border-radius: var(--ptk-radius-sm);
  padding: 0.85em 1em; background: var(--ptk-surface-alt);
}
.ptk-stat--saved{ background: var(--ptk-success-tint); border-color: var(--ptk-success); }
.ptk-stat span{ display: block; font-size: 0.8rem; color: var(--ptk-ink-muted); margin-bottom: 0.2em; }
.ptk-stat b{ font-family: var(--ptk-font-mono); font-size: 1.3rem; }
.ptk-stat--saved b{ color: var(--ptk-success); }

.ptk-tool__note{
  font-size: 0.82rem; color: var(--ptk-ink-muted); margin-top: 1rem;
  display: flex; align-items: flex-start; gap: 0.5em;
}

/* ==========================================================================
   7. "How it works" steps + trust section
   ========================================================================== */
.ptk-steps{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; margin-top: 2rem; }
@media (max-width: 780px){ .ptk-steps{ grid-template-columns: 1fr; } }
.ptk-step{ border-top: 2px solid var(--ptk-primary); padding-top: 0.85rem; }
.ptk-step__num{ font-family: var(--ptk-font-mono); color: var(--ptk-primary); font-size: 0.9rem; }
.ptk-step h3{ margin-top: 0.35em; }
.ptk-step p{ color: var(--ptk-ink-muted); }

.ptk-trust{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; }
@media (max-width: 780px){ .ptk-trust{ grid-template-columns: 1fr; } }
.ptk-trust__item{ padding: 1.25rem; border: 1px solid var(--ptk-border); border-radius: var(--ptk-radius-md); background: var(--ptk-surface); }
.ptk-trust__item h3{ font-size: 1.02rem; margin-bottom: 0.4em; }
.ptk-trust__item p{ color: var(--ptk-ink-muted); font-size: 0.92rem; }

.ptk-usecases{ margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.ptk-usecases span{
  border: 1px solid var(--ptk-border); border-radius: var(--ptk-radius-sm);
  padding: 0.5em 0.9em; font-size: 0.88rem; color: var(--ptk-ink-muted); background: var(--ptk-surface);
}

/* ==========================================================================
   8. Generic content pages (About / Privacy / Terms)
   ========================================================================== */
.ptk-page-header{ padding-block: 2.5rem 1rem; border-bottom: 1px solid var(--ptk-border); background: var(--ptk-surface); }
.ptk-page-content{ padding-block: var(--ptk-section-space); }
.ptk-page-content .ptk-container--narrow > *:first-child{ margin-top: 0; }
.ptk-page-content h2{ margin-top: 1.5em; }
.ptk-page-content ul{ color: var(--ptk-ink-muted); }
.ptk-page-content table{ width: 100%; border-collapse: collapse; margin: 1.5em 0; }
.ptk-page-content th, .ptk-page-content td{ border: 1px solid var(--ptk-border); padding: 0.6em 0.75em; text-align: left; font-size: 0.92rem; }
.ptk-page-content th{ background: var(--ptk-surface-alt); }

/* ==========================================================================
   9. Contact page
   ========================================================================== */
.ptk-contact-grid{ display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 3rem; }
@media (max-width: 780px){ .ptk-contact-grid{ grid-template-columns: 1fr; } }
.ptk-contact-info{ border-left: 2px solid var(--ptk-primary); padding-left: 1.25rem; }
.ptk-contact-info h3{ font-size: 1rem; }
.ptk-honeypot{ position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.ptk-form-notice{ padding: 0.85em 1em; border-radius: var(--ptk-radius-sm); margin-bottom: 1.25rem; font-size: 0.92rem; }
.ptk-form-notice--success{ background: var(--ptk-success-tint); border: 1px solid var(--ptk-success); color: var(--ptk-ink); }
.ptk-form-notice--error{ background: var(--ptk-warn-tint); border: 1px solid var(--ptk-warn); color: var(--ptk-ink); }

/* ==========================================================================
   10. Footer
   ========================================================================== */
.ptk-footer{ border-top: 1px solid var(--ptk-border); background: var(--ptk-surface); padding-block: 2.5rem; margin-top: var(--ptk-section-space); }
.ptk-footer__grid{ display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.ptk-footer__brand p{ color: var(--ptk-ink-muted); max-width: 32ch; font-size: 0.9rem; }
.ptk-footer__links{ list-style: none; margin: 0; padding: 0; display: flex; gap: 1.5rem; flex-wrap: wrap; }
.ptk-footer__links a{ color: var(--ptk-ink-muted); text-decoration: none; font-size: 0.9rem; font-weight: 600; }
.ptk-footer__links a:hover{ color: var(--ptk-primary); }
.ptk-footer__bottom{ margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--ptk-border); font-size: 0.82rem; color: var(--ptk-ink-muted); }

/* ==========================================================================
   11. 404
   ========================================================================== */
.ptk-404{ text-align: left; padding-block: var(--ptk-section-space); }