/* ========================================
1.  VARIABLES & RESET
======================================== */
:root {
    --primary-color: #e34c26;    /* Πορτοκαλί/Κόκκινο του λογοτύπου "TO STEKI" */
    --secondary-color: #555555;  
    --accent-color: #ffffff;     
    --bg-color: #1a1a1a;         /* Σκούρο φόντο */
    --surface-color: #2b2b2b;    /* Σκούρο γκρι για τα πλαίσια */
    --text-main: #ffffff;        /* Λευκά γράμματα */
    --text-muted: #aaaaaa;       /* Απαλό γκρι για περιγραφές/αγγλικά */
    --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;
}

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

.logo-container {
    text-align: center;
    padding: 20px 0;
}

.text-logo {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-main); 
    margin: 0;
    line-height: 1.2;
    letter-spacing: 2px; 
}

.logo-subtitle {
    font-size: 1rem;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 2px; 
    margin: 8px 0 0 0;
    font-weight: 700;
}

.logo-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-top: 5px;
}

/* ========================================
3. STICKY NAVIGATION (HORIZONTAL SCROLL)
======================================== */
.category-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(43, 43, 43, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.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-main);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 8px 18px;
    border-radius: 25px;
    background: #444444;
    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: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
    padding-left: 12px;
    text-transform: uppercase;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 400;
    margin-left: 10px;
}

.menu-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-color);
    padding: 14px 16px;
    margin-bottom: 10px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.item-info {
    flex: 1;
    padding-right: 15px;
}

.item-name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 2px;
    text-transform: uppercase;
}

.item-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.item-price {
    font-weight: 700;
    color: var(--text-main);
    font-size: 1.1rem;
    white-space: nowrap;
    background: var(--primary-color);
    padding: 4px 10px;
    border-radius: 6px;
}

/* ========================================
5. BACK TO TOP BUTTON
======================================== */
.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(0,0,0,0.5);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999; 
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.back-to-top svg { width: 24px; height: 24px; }
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:active { background-color: #b3391b; transform: scale(0.95); }

/* ========================================
6. FOOTER
======================================== */
.menu-footer {
    text-align: center;
    padding: 40px 20px 30px;
    border-top: 1px solid rgba(255,255,255,0.1); 
}

.contact-info {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}