/* ========================================
1.  VARIABLES & RESET
======================================== */
:root {
    --primary-color: #2b556e;    
    --secondary-color: #808285;  
    --accent-color: #C5A059;     
    --bg-color: #f9f9f9;
    --surface-color: #ffffff;
    --text-main: #1a1a1a;
    --text-muted: #666666;
    --nav-height: 60px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

/* Language Toggle CSS */
body.lang-en .lang-el { display: none !important; }
body:not(.lang-en) .lang-en { display: none !important; }

/* ========================================
2. HEADER & LOGO
======================================== */
.main-header {
    background: var(--surface-color);
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.logo-container {
    text-align: center;
    padding: 10px 0;
}

.text-logo {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--primary-color); 
    margin: 0;
    line-height: 1;
    letter-spacing: -1px; 
}

.logo-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 5px;
    font-weight: 600;
}

/* Language Switcher */
.lang-switcher {
    margin-top: 15px;
    display: inline-flex;
    background: #efefef;
    border-radius: 25px;
    overflow: hidden;
}
.lang-btn {
    background: none;
    border: none;
    padding: 8px 16px;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}
.lang-btn.active {
    background: var(--primary-color);
    color: white;
}

/* ========================================
3. STICKY NAVIGATION (HORIZONTAL SCROLL)
======================================== */
.category-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.nav-scroll-container {
    display: flex;
    overflow-x: auto;
    white-space: nowrap;
    padding: 12px 10px;
    gap: 10px;
    scrollbar-width: none; 
}
.nav-scroll-container::-webkit-scrollbar { display: none; }

.nav-item {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 8px 18px;
    border-radius: 25px;
    background: #efefef;
    transition: var(--transition);
}
.nav-item.active { background: var(--primary-color); color: white; }

/* ========================================
4. MENU SECTIONS & ITEMS
======================================== */
.menu-container {
    padding: 20px 15px;
    max-width: 600px; 
    margin: 0 auto;
}

.menu-section {
    margin-bottom: 40px;
    scroll-margin-top: 80px; 
}

.section-title {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    border-left: 4px solid var(--secondary-color);
    padding-left: 12px;
}

.menu-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    background: var(--surface-color);
    padding: 16px;
    margin-bottom: 12px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.item-info { flex: 1; padding-right: 15px; }
.item-name { font-size: 1.05rem; font-weight: 600; margin-bottom: 4px; }
.item-desc { font-size: 0.85rem; color: var(--text-muted); }
.item-price { font-weight: 700; color: var(--primary-color); font-size: 1rem; white-space: nowrap; }

/* ========================================
5. BACK TO TOP BUTTON & FOOTER
======================================== */
.back-to-top {
    position: fixed; bottom: 25px; right: 25px; width: 50px; height: 50px;
    background-color: var(--primary-color); color: #ffffff; border: none;
    border-radius: 50%; box-shadow: 0 4px 12px rgba(0,0,0,0.2); cursor: pointer;
    display: flex; align-items: center; justify-content: center; z-index: 9999; 
    opacity: 0; visibility: hidden; transform: translateY(20px); transition: var(--transition);
}
.back-to-top svg { width: 24px; height: 24px; }
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.menu-footer { text-align: center; padding: 40px 20px 30px; border-top: 1px solid #eee; }