/* Βασικές μεταβλητές χρωμάτων (άσπρο - μαύρο) */
:root {
    --bg: #ffffff;
    --bg-soft: #f5f5f5;
    --text: #111111;
    --muted: #777777;
    --border: #e0e0e0;
    --accent: #000000;
}

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

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* ------------------------------
   Αρχική σελίδα (home)
   ------------------------------ */

body.home {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg);
}

.home-main {
    padding: 2rem 1.5rem;
    text-align: center;
}

.home-inner {
    max-width: 640px;
    margin: 0 auto;
}

.home-title {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: 0 0 0.75rem;
}

.home-subtitle {
    margin: 0;
    font-size: 0.9rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted);
}

/* ------------------------------
   Σελίδες εταιριών
   ------------------------------ */

body.company-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.site-header {
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
    z-index: 10;
}

.site-header-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-title a {
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
}

.site-domain {
    font-size: 0.8rem;
    color: var(--muted);
}

/* Κύριο περιεχόμενο */
.page-main {
    flex: 1;
    padding: 2rem 1.5rem 2.5rem;
    display: flex;
    justify-content: center;
}

.page-inner {
    width: 100%;
    max-width: 960px;
}

/* Επικεφαλίδα εταιρίας */
.company-header {
    margin-bottom: 1.75rem;
}

.company-name {
    font-size: clamp(1.6rem, 2.5vw, 2.1rem);
    margin: 0 0 0.35rem;
}

.company-subtitle {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

/* Κάρτα ισολογισμών */
.company-card {
    background-color: var(--bg-soft);
    border-radius: 1.25rem;
    border: 1px solid var(--border);
    padding: 1.5rem;
}

.company-card-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.company-card-title {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
}

.company-card-meta {
    font-size: 0.8rem;
    color: var(--muted);
}

/* Πλέγμα κουμπιών χρονολογιών */
.year-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

/* Κουμπί έτους – rounded, καθαρό, άσπρο/μαύρο */
.year-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.2rem;
    border-radius: 999px; /* full rounded */
    border: 1px solid var(--accent);
    background-color: var(--bg);
    color: var(--text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    min-width: 4.4rem;
    transition:
        background-color 0.15s ease,
        color 0.15s ease,
        transform 0.08s ease,
        box-shadow 0.12s ease,
        border-color 0.12s ease;
}

.year-button span {
    letter-spacing: 0.04em;
}

/* Εφέ hover/focus */
.year-button:hover,
.year-button:focus-visible {
    background-color: var(--accent);
    color: #ffffff;
    border-color: #000000;
    outline: none;
    transform: translateY(-1px);
    box-shadow: 0 3px 7px rgba(0, 0, 0, 0.18);
}

/* Ειδικό στιλ για τον πιο πρόσφατο ισολογισμό */
.year-button.latest {
    font-weight: 600;
}

/* Μικρή ταμπέλα δίπλα στο τελευταίο έτος */
.badge-latest {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.15rem 0.7rem;
    margin-left: 0.3rem;
    border-radius: 999px;
    border: 1px solid var(--accent);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 0.9rem 1.5rem 1.1rem;
    font-size: 0.75rem;
    color: var(--muted);
}

.site-footer-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Responsive tweaks */
@media (max-width: 600px) {
    .site-header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .company-card {
        padding: 1.25rem;
    }

    .site-footer-inner {
        flex-direction: column;
    }
}