/* ========================================
   RESET & BASE
   ======================================== */

/* AGGIUNTA KONAMI: Registrazione della variabile per animazione fluida */
@property --accent-color {
    syntax: '<color>';
    initial-value: #961114;
    inherits: true;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dark Theme (Default) */
    --bg-color: #070707;
    --text-color: #FCF7F8;
    --accent-color: #961114; /* Rosso HEX aggiornato */
    --secondary-bg: #1a1a1a;
    --border-color: rgba(252, 247, 248, 0.1);
    
    /* Spacing */
    --nav-height: 80px;
    --sidebar-width: 60px;
    --container-padding: 5vw;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Transitions */
    --transition-theme: background-color 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                        color 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ... [Resto del tuo CSS invariato fino alla fine] ... */

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .sidebar {
        display: none; 
    }
    .main-content {
        padding-right: 0;
    }
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 5rem);
    }
}

/* ========================================
   MODIFICHE KONAMI CODE (RAINBOW MODE)
   ======================================== */

/* Animazione che ruota solo il colore accento senza toccare filtri globali */
@keyframes rainbow-accent {
    0% { --accent-color: #961114; }
    20% { --accent-color: #be1193; }
    40% { --accent-color: #111496; }
    60% { --accent-color: #119614; }
    80% { --accent-color: #969311; }
    100% { --accent-color: #961114; }
}

body.konami-active {
    /* Velocità aumentata per un effetto più vibrante */
    animation: rainbow-accent 1.5s linear infinite !important;
}

@keyframes logo-rainbow {
    from { filter: hue-rotate(0deg); }
    to { filter: hue-rotate(360deg); }
}

/* Quando il Konami Code è attivo */
body.konami-active {
    animation: rainbow-fast 1s linear infinite !important;
}

/* Il logo segue l'arcobaleno ruotando partendo dal suo rosso */
body.konami-active .logo-icon,
body.konami-active .logo-text {
    animation: logo-rainbow 1s linear infinite !important;
    color: var(--accent-color) !important; /* Forza il colore se è testo */
}


/* Applica il cambio colore anche a tutti gli elementi che devono "seguire" l'arcobaleno */
body.konami-active .nav-link:hover,
body.konami-active .sidebar-progress,
body.konami-active .sidebar-dot.active {
    transition: none; /* Rimuove ritardi per massima fluidità durante l'arcobaleno */
}

/* Light Theme */
body.light-theme {
    --bg-color: #FCF7F8;
    --text-color: #070707;
    --accent-color: #961114; /* Rosso HEX aggiornato */
    --secondary-bg: #f0f0f0;
    --border-color: rgba(7, 7, 7, 0.1);
}

/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700;900&family=Inter:wght@300;400;500;600&display=swap');

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition-theme);
    overflow-x: hidden;
    line-height: 1.6;
}

/* ========================================
   NAVBAR
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(7, 7, 7, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-theme);
}

body.light-theme .navbar {
    background-color: rgba(252, 247, 248, 0.8);
}

.navbar-container {
    height: var(--nav-height);
    padding: 0 var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1800px;
    margin: 0 auto;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: auto;
    height: 40px;
    flex-shrink: 0;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-smooth);
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link:hover::after {
    width: 100%;
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-color);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    background-color: var(--secondary-bg);
    border-color: var(--accent-color);
    transform: rotate(180deg);
}

.sun-icon,
.moon-icon {
    position: absolute;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.sun-icon {
    opacity: 0;
    transform: rotate(-90deg);
}

.moon-icon {
    opacity: 1;
    transform: rotate(0deg);
}

body.light-theme .sun-icon {
    opacity: 1;
    transform: rotate(0deg);
}

body.light-theme .moon-icon {
    opacity: 0;
    transform: rotate(90deg);
}

/* ========================================
   SIDEBAR NAVIGATION
   ======================================== */

.sidebar {
    position: fixed;
    right: 3rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
}

.sidebar-indicators {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    position: relative;
    padding: 10px 0;
}

.sidebar-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: transparent;
    border: 2px solid var(--text-color);
    cursor: pointer;
    transition: all var(--transition-smooth);
    opacity: 0.3;
    padding: 0;
    outline: none;
}

.sidebar-dot:hover {
    opacity: 0.8;
    transform: scale(1.3);
    border-color: var(--accent-color);
}

.sidebar-dot.active {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    opacity: 1;
    transform: scale(1.4);
    box-shadow: 0 0 20px rgba(150, 17, 20, 0.4); /* Rosso HEX con opacità */
}

.sidebar-line {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--border-color);
    z-index: -1;
    border-radius: 2px;
    overflow: hidden;
}

.sidebar-progress {
    width: 100%;
    height: 0%;
    background-color: var(--accent-color);
    transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px rgba(150, 17, 20, 0.5); /* Rosso HEX con opacità */
}

/* ========================================
   MAIN CONTENT & SECTIONS
   ======================================== */

.main-content {
    margin-top: var(--nav-height);
}

.project-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5rem var(--container-padding);
    position: relative;
}
.project-card-title{
    text-align: center;
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -0.03em;
    text-align: center;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    font-weight: 300;
    text-align: center;
    opacity: 0.7;
    max-width: 600px;
    margin-top: 1rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.5;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

.category-header {
    margin-bottom: 4rem;
}

.category-number {
    font-family: var(--font-display);
    font-size: 3rem;
    color: var(--accent-color);
    font-weight: 700;
    letter-spacing: 0.1em;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2.5rem;
    width: 100%;
    max-width: 1400px;
}

.project-card {
    display: block;
    text-decoration: none;
    color: var(--text-color);
    background-color: var(--secondary-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-color);
}

/* ========================================
   REVEAL & UTILS
   ======================================== */

.reveal {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

::selection {
    background-color: var(--accent-color);
    color: #fff;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .sidebar {
        display: none; /* Nascondi sidebar su mobile per pulizia */
    }
    .main-content {
        padding-right: 0;
    }
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 5rem);
    }
}