/* panellele.com: η φωτεινή εμφάνιση της εφαρμογής στο web, πάντα φωτεινή (ιδιοκτήτης, Οκτ. 2026: «το άσπρο
   προσδίδει επαγγελματικότητα»), ακόμη κι αν η συσκευή είναι σε σκοτεινή εμφάνιση. Λευκό φόντο με τις απαλές
   λάμψεις της εφαρμογής, λευκές κάρτες με μεγάλες γωνίες και απαλή σκιά, το μπλε του λογότυπου ως μοναδικό
   χρώμα έμφασης, και «γυαλί» μόνο στη γραμμή πλοήγησης. Χωρίς JavaScript, χωρίς εξωτερικές γραμματοσειρές. */

:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #f6f7f9;
  --text: #1d1d1f;
  --text-2: #5f6168;
  --line: rgba(0, 0, 0, 0.08);
  --brand: #06458f;
  --brand-text: #06458f;
  --button: #06458f;
  --button-text: #ffffff;
  --glow-1: rgba(6, 69, 143, 0.09);
  --glow-2: rgba(88, 86, 214, 0.07);
  --glow-3: rgba(50, 173, 230, 0.08);
  --shadow: 0 1px 2px rgba(17, 24, 39, 0.04), 0 8px 28px rgba(17, 24, 39, 0.07);
  --radius: 26px;
  --phone: #1d1d1f;
  --theory: #d3edf4;
  --theory-line: #38a5ca;
  --caution: #f7cdb9;
  --caution-line: #e2814f;
  --comment: #ececef;
  --comment-line: #b9bac0;
  color-scheme: light;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Το απαλό φόντο της εφαρμογής (AmbientBackground): τρεις διάχυτες λάμψεις στο πάνω μέρος. */
body::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1100px;
  z-index: -1;
  background:
    radial-gradient(640px 520px at 8% 0%, var(--glow-1), transparent 70%),
    radial-gradient(560px 480px at 92% 6%, var(--glow-3), transparent 70%),
    radial-gradient(700px 520px at 70% 45%, var(--glow-2), transparent 72%);
  pointer-events: none;
}

.stat, .feature, .subject, .trust li, .values li, .faq details, .cta, .help-card, .legal {
  border: 1px solid rgba(17, 24, 39, 0.06);
}

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

a { color: var(--brand-text); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--brand-text); outline-offset: 3px; border-radius: 8px; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.3rem, 5.6vw, 3.9rem); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.6rem); font-weight: 800; letter-spacing: -0.03em; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1em; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(760px, 100% - 32px); }
.center { text-align: center; }
.muted { color: var(--text-2); }
.small { font-size: 0.875rem; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--surface); color: var(--text); padding: 10px 16px; border-radius: 12px;
}
.skip:focus { top: 12px; }

/* Πλοήγηση: το μόνο «γυαλί» της σελίδας. */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.header-row { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: block; flex: none; }
.brand img { width: 128px; height: auto; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--text); text-decoration: none; font-size: 0.95rem; font-weight: 500; opacity: 0.85; }
.nav a:hover, .nav a[aria-current="page"] { opacity: 1; color: var(--brand-text); }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 26px; border-radius: 999px;
  background: var(--button); color: var(--button-text);
  font-weight: 650; font-size: 1rem; text-decoration: none;
  transition: transform 0.15s ease, filter 0.15s ease;
}
.button:hover { filter: brightness(1.08); }
.button:active { transform: scale(0.97); }
.button-small { min-height: 36px; padding: 0 16px; font-size: 0.9rem; }
.button-quiet { background: var(--surface); color: var(--text); box-shadow: inset 0 0 0 1px var(--line); }

.eyebrow {
  color: var(--brand-text); font-weight: 700; font-size: 0.9rem;
  letter-spacing: 0.02em; margin-bottom: 0.7em;
}
.lead { font-size: clamp(1.08rem, 1.6vw, 1.25rem); color: var(--text-2); max-width: 36em; }

/* Αρχή της σελίδας */
.hero { padding: clamp(40px, 7vw, 96px) 0 24px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center; }
.hero h1 { max-width: 12em; }

.stores { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 14px; }
.store {
  display: inline-flex; flex-direction: column; justify-content: center;
  min-width: 168px; min-height: 56px; padding: 6px 20px; border-radius: 14px;
  background: var(--text); color: var(--bg); line-height: 1.15;
}
.store-small { font-size: 0.72rem; opacity: 0.8; }
.store-big { font-size: 1.2rem; font-weight: 650; letter-spacing: -0.01em; }
.store-later { background: transparent; color: var(--text); box-shadow: inset 0 0 0 1.5px var(--line); }
.hero-note { color: var(--text-2); font-size: 0.95rem; }

.phone {
  margin: 0; background: var(--phone); padding: 9px; border-radius: 46px;
  box-shadow: var(--shadow), 0 30px 60px rgba(17, 24, 39, 0.16);
}
.phone img { border-radius: 38px; width: 100%; }

.hero-phones { position: relative; height: clamp(440px, 52vw, 600px); }
.hero-phones .phone { position: absolute; width: clamp(200px, 22vw, 262px); }
.phone-back { left: 4%; top: 6%; transform: rotate(-5deg); }
.phone-front { right: 6%; top: 0; transform: rotate(4deg); }

/* Αριθμοί */
.stats { padding: 32px 0 8px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat {
  background: var(--surface); border-radius: var(--radius); padding: 22px 22px 20px;
  box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 4px;
}
.stat strong { font-size: clamp(1.8rem, 3vw, 2.3rem); font-weight: 800; letter-spacing: -0.03em; color: var(--brand-text); font-variant-numeric: tabular-nums; }
.stat span { color: var(--text-2); font-size: 0.95rem; }

/* Ενότητες */
.section { padding: clamp(56px, 8vw, 104px) 0; }
.section-compact { padding-top: 8px; }
.section-tint { background: var(--surface-2); }
.section-head { max-width: 720px; margin-bottom: 40px; }
.section-head p:not(.eyebrow) { color: var(--text-2); font-size: 1.08rem; }

.feature {
  display: grid; grid-template-columns: 1fr 260px; gap: clamp(28px, 6vw, 80px); align-items: center;
  background: var(--surface); border-radius: 34px; padding: clamp(28px, 5vw, 56px);
  box-shadow: var(--shadow); margin-bottom: 24px; overflow: hidden;
}
.feature-flip { grid-template-columns: 260px 1fr; }
.feature-flip .feature-text { order: 2; }
.feature h3 { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 800; letter-spacing: -0.025em; }
.feature p { color: var(--text-2); font-size: 1.05rem; }
.feature .phone { width: 100%; max-width: 260px; justify-self: center; }

.ticks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.ticks li { position: relative; padding-left: 30px; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 0.32em; width: 18px; height: 18px; border-radius: 50%;
  background: var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9.4l2.6 2.6L13 6.6' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 18px no-repeat;
}

.tag { display: inline-block; font-size: 0.78rem; font-weight: 700; padding: 1px 9px; border-radius: 7px; color: #1d1d1f; letter-spacing: 0.02em; }
.tag-blue { background: var(--theory); box-shadow: inset 0 0 0 1px var(--theory-line); }
.tag-orange { background: var(--caution); box-shadow: inset 0 0 0 1px var(--caution-line); }
.tag-gray { background: var(--comment); box-shadow: inset 0 0 0 1px var(--comment-line); }

/* Μαθήματα */
.subjects { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.subject { background: var(--surface); border-radius: 22px; padding: 18px 20px; box-shadow: var(--shadow); }
.subject h3 { font-size: 1.12rem; margin-bottom: 4px; }
.subject p { margin: 0; color: var(--text-2); font-size: 0.92rem; font-variant-numeric: tabular-nums; }
.subject .field { display: inline-block; margin-top: 10px; font-size: 0.78rem; font-weight: 650; color: var(--brand-text); background: color-mix(in srgb, var(--brand) 10%, transparent); padding: 2px 10px; border-radius: 999px; }

/* Ασφάλεια */
.trust { list-style: none; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.trust li { background: var(--surface); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.trust h3 { font-size: 1.1rem; }
.trust-icon { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 13px; margin-bottom: 14px; color: var(--brand-text); background: color-mix(in srgb, var(--brand) 11%, transparent); }
.trust p { color: var(--text-2); font-size: 0.97rem; margin: 0; }
.link-arrow { font-weight: 650; text-decoration: none; }
.link-arrow::after { content: " →"; }

/* Ποιοι είμαστε */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 6vw, 72px); align-items: start; }
.about > div p:not(.eyebrow) { color: var(--text-2); font-size: 1.08rem; }
.about strong { color: var(--text); }
.values { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.values li { background: var(--surface); border-radius: 22px; padding: 20px 22px; box-shadow: var(--shadow); }
.values h3 { font-size: 1.08rem; margin-bottom: 4px; }
.values p { margin: 0; color: var(--text-2); font-size: 0.97rem; }

/* Συχνές ερωτήσεις: <details>, χωρίς JavaScript. */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--surface); border-radius: 20px; box-shadow: var(--shadow); }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 54px 18px 22px; font-weight: 650; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 22px; top: 50%; width: 10px; height: 10px; margin-top: -7px;
  border-right: 2px solid var(--text-2); border-bottom: 2px solid var(--text-2); transform: rotate(45deg);
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { transform: rotate(225deg); margin-top: -2px; }
.faq details p { padding: 0 22px 18px; margin: 0; color: var(--text-2); }

/* Τελική πρόσκληση */
.cta {
  text-align: center; background: var(--surface); border-radius: 34px; box-shadow: var(--shadow);
  padding: clamp(36px, 6vw, 64px) 24px;
}
.cta-hat { width: 64px; margin: 0 auto 16px; }
.cta p { color: var(--text-2); }
.cta .button { margin: 6px 0 16px; }

/* Υποστήριξη και νομικά */
.page-hero { padding: clamp(40px, 7vw, 88px) 0 28px; }
.page-hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.2rem); }
.help { display: grid; gap: 16px; }
.help-card { background: var(--surface); border-radius: var(--radius); padding: clamp(22px, 4vw, 32px); box-shadow: var(--shadow); }
.help-card h2 { font-size: 1.35rem; letter-spacing: -0.02em; }
.help-card p:last-child { margin-bottom: 0; }

.legal { background: var(--surface); border-radius: 30px; box-shadow: var(--shadow); padding: clamp(24px, 5vw, 56px); }
.legal h1 { font-size: clamp(2rem, 4.2vw, 2.8rem); }
.legal h2 { font-size: 1.3rem; letter-spacing: -0.015em; margin-top: 2em; scroll-margin-top: 90px; }
.legal h2 a { color: inherit; text-decoration: none; }
.legal p, .legal li { color: var(--text); }
.legal ul { padding-left: 1.3em; }
.legal li { margin-bottom: 0.4em; }
.legal .effective { color: var(--text-2); font-size: 0.95rem; }
.legal .summary { background: var(--surface-2); border-radius: 20px; padding: 20px 24px 8px; margin: 24px 0 8px; }
.legal .summary h2 { margin-top: 0; font-size: 1.05rem; }
.legal .toc-nav { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 18px 0 12px; margin: 24px 0 8px; }
.legal .toc { columns: 2; column-gap: 32px; padding: 0; list-style: none; margin: 0; font-size: 0.95rem; }
.legal .toc li { break-inside: avoid; margin-bottom: 6px; }
.legal-meta { margin-top: 18px; color: var(--text-2); font-size: 0.9rem; text-align: center; }

/* 404: μια ερώτηση Σωστό ή Λάθος, με τα πλακίδια της Παρτίδας. */
.notfound { padding: clamp(48px, 9vw, 120px) 0; text-align: center; }
.quiz {
  background: linear-gradient(180deg, #4d1c99, #290f66); border-radius: 30px; padding: 26px 22px 22px;
  color: #fff; max-width: 440px; margin: 0 auto 36px; box-shadow: var(--shadow);
}
.quiz-kind { font-size: 0.85rem; font-weight: 650; opacity: 0.8; margin-bottom: 10px; }
.quiz-question { background: #fff; color: #1d1d1f; font-weight: 750; font-size: 1.25rem; border-radius: 16px; padding: 18px; margin-bottom: 14px; }
.quiz-answers { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.quiz-tile { position: relative; display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 64px; border-radius: 14px; font-weight: 750; font-size: 1.05rem; }
.quiz-symbol { font-size: 0.95rem; }
.quiz-true { background: #1269cf; opacity: 0.4; }
.quiz-false { background: #e31c3d; box-shadow: 0 0 0 3px #fff; }
.quiz-check { position: absolute; top: -10px; right: -8px; width: 28px; height: 28px; border-radius: 50%; background: #29b34a; color: #fff; font-size: 0.95rem; line-height: 28px; box-shadow: 0 0 0 2px #fff; }
.notfound .lead { margin-inline: auto; }
.buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }

/* Υποσέλιδο */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0 28px; margin-top: 24px; font-size: 0.95rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 28px; }
.footer-brand img { width: 118px; margin-bottom: 12px; }
.footer-brand p { color: var(--text-2); max-width: 24em; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links h2 { font-size: 0.85rem; letter-spacing: 0.02em; color: var(--text-2); margin-bottom: 4px; }
.footer-links a { color: var(--text); text-decoration: none; }
.footer-links a:hover { color: var(--brand-text); }
.footer-links p { margin: 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--text-2); font-size: 0.85rem; }
.footer-bottom p { margin: 0; }

/* Οθόνες */
@media (max-width: 980px) {
  .trust { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .nav { display: none; }
  .button-small { margin-left: auto; }
  .hero-grid, .about { grid-template-columns: 1fr; }
  .hero-phones { height: 470px; max-width: 420px; width: 100%; margin: 8px auto 0; }
  .feature, .feature-flip { grid-template-columns: 1fr; text-align: left; }
  .feature-flip .feature-text { order: 0; }
  .feature .phone { max-width: 240px; }
  .legal .toc { columns: 1; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .hero-phones { height: 400px; }
  .hero-phones .phone { width: 190px; }
  .phone { border-radius: 38px; padding: 7px; }
  .phone img { border-radius: 32px; }
  .stores .store { flex: 1 1 140px; min-width: 0; }
  .trust { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .feature { border-radius: 28px; }
}

@media (max-width: 400px) {
  .stats-grid { gap: 10px; }
  .stat { padding: 16px 14px; border-radius: 20px; }
  .stat strong { font-size: 1.6rem; }
  .stat span { font-size: 0.85rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .faq summary::after { transition: none; }
}