/* Base */
html {
	overflow-x: hidden;
	max-width: 100%;
}

body {
	margin: 0;
	padding: 0;
	font-family: 'Roboto', sans-serif;
	scroll-behavior: smooth;
	font-size: 16px;
	color: #fff;
	background: black;
	overflow: hidden;
}

/* NAVBAR */
#navbar {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 0.75rem 1.5rem;
	background-color:#1B263B;
	border-bottom: 3px solid #0D1B2A;  
	/*border-bottom: 3px solid #3B4C6B;
	background-color: #1C2541;*/
	/*background: linear-gradient(to bottom, #1c1c1c, #2e2e2e);*/
	z-index: 2;
	height: 3em;

}

.nav-left {
	margin-left: 3rem;
}

.nav-right {
	margin-right: 3em;
}

.nav-button {
	background: transparent;
	border: 2px solid #fff;
	color: #fff;
	padding: 0.5rem 1rem;
	border-radius: 20px;
	text-decoration: none;
	font-size: 0.95rem;
	transition: background-color 0.3s;
}

.nav-button:hover {
	background-color: rgba(255, 255, 255, 0.2);
}

.icon-button {
	color: #fff;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0.3rem;
	border-radius: 50%;
	transition: background-color 0.3s;
}

.icon-button:hover {
        color: #00BFFF;
}

/* Dropdown navigation */
.dropdown {
        position: relative;
        display: inline-flex;
}

.dropdown-toggle {
        background: none;
        border: none;
        color: #fff;
        font-size: 0.95rem;
        display: inline-flex;
        align-items: center;
        gap: 0.35rem;
        cursor: pointer;
}

.dropdown-toggle:focus {
        outline: none;
}

.dropdown-icon {
        width: 16px;
        height: 16px;
        transition: transform 0.3s ease;
}

.dropdown-toggle[aria-expanded="true"] .dropdown-icon {
        transform: rotate(180deg);
}

.dropdown-menu {
        display: none;
        position: absolute;
        right: 0;
        top: calc(100% + 0.75rem);
        background-color: #0D1B2A;
        border: 1px solid rgba(0, 191, 255, 0.5);
        border-radius: 10px;
        padding: 0.5rem;
        min-width: 150px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
        z-index: 10;
}

.dropdown-menu.show {
        display: block;
}

.dropdown-logout {
        width: 100%;
        background: none;
        border: none;
        color: inherit;
        font-size: 0.95rem;
        padding: 0.5rem;
        text-align: left;
        cursor: pointer;
        transition: background-color 0.2s;
}

.dropdown-link {
        display: block;
        width: 100%;
        background: none;
        border: none;
        color: inherit;
        font-size: 0.95rem;
        padding: 0.5rem;
        text-align: left;
        text-decoration: none;
        cursor: pointer;
        transition: background-color 0.2s;
}

.dropdown-link:hover,
.dropdown-logout:hover {
        background-color: rgba(255, 255, 255, 0.12);
}

/* HERO */
.hero {
	position: relative;
	width: 100vw;
	min-height: 90vh;
	/* altezza fluida */
	overflow: hidden;
	display: flex;
	align-items: center;
	justify-content: center;
}

/* video a sfondo viewport-wide */
.hero_video {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
	z-index: 0;
	will-change: transform;
	backface-visibility: hidden;
	transform: translateZ(0);

}

/* overlay centrato */
.hero_overlay {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	text-align: center;
	padding: 1rem;
	background-color: rgba(0, 0, 0, 0.5);
	z-index: 1;
	
}

/* Tipografia fluida */
.hero_overlay h1 {
	margin: 0;
	font-size: clamp(2rem, 8vw, 4rem);
}

.hero_overlay p.subtitle {
	font-size: clamp(1rem, 3vw, 1.25rem);
	margin: 0.5rem 0;
}

.hero_overlay p:not(.subtitle) {
	font-size: clamp(1rem, 2.5vw, 1.2rem);
	margin: 1rem 0;
}

.hero_overlay button {
	margin-top: 1rem;
	font-size: clamp(0.9rem, 2.5vw, 1.1rem);
	padding: clamp(0.5em, 1.2vw, 0.7em) clamp(0.8em, 2vw, 1.2em);
	border: none;
	background-color: #fff;
	color: #000;
	border-radius: 5px;
	cursor: pointer;
	transition: background-color 0.3s;
}

.hero_overlay button:hover {
	background-color: #d4eaff;
}

/* PROJECTS: grid responsive */
.projects {
	display: grid;
	gap: 1rem;
	padding: 4rem 1rem;
	background-color: #1B263B;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.project-box {
	display: flex;
	flex-direction: column;
	align-items: center;
	background-color:#0D1B2A;
	/* grigio di default */
	color: #fff;
	border: none;
	border-top: 5px solid transparent;
	border-radius: 10px;
	padding: 2rem;
	text-align: center;
	box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
	cursor: pointer;
	transition: background-color 0.3s ease;
	font-family: inherit;

}

.project-box.ltrad:hover {
	background-color: #007bff;
}

.project-box.ltrad {
	border-top-color: #007bff;
}

.project-box.fire:hover {
	background-color: #cc0000;
}

.project-box.fire {
	border-top-color: #cc0000;
}

.project-box.volcano:hover {
	background-color: #e67e00;
}

.project-box.volcano {
	border-top-color: #e67e00;
}


.project-box h3 {
	margin-bottom: 1rem;
	font-size: 1.2rem;
}

.project-box p {
	font-size: 1rem;
	line-height: 1.5;
}

.project-box button {
	margin-top: 1rem;
	padding: 0.5rem 1.2rem;
	background: #000;
	color: #fff;
	border: none;
	border-radius: 5px;
	cursor: pointer;
	transition: background-color 0.3s;
}

.project-box button:hover {
	background-color: rgba(255, 255, 255, 0.1);
}

/* INFO SECTION*/ 
.features-section {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: stretch;
        gap: 2rem;
        padding: 3rem 2rem;
        background-color: #0b1a2f;
}

.feature-box {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        flex: 1 1 300px;
        max-width: 400px;
        background-color: #1B263B;
        border: 1px solid #2f3e55;
        border-radius: 12px;
        padding: 1.5rem;
        color: white;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease;
}

.feature-box:hover {
	transform: translateY(-5px);
}

.feature-box h2 {
	color: #00bfff;
	margin-bottom: 1rem;
	font-size: 1.5rem;
	text-align: center;
}

.feature-box.ltrad h2 {
	color: #007bff;
}
.feature-box.fire h2 {
	color: #cc0000;
}
.feature-box.volcano h2 {
	color: #e67e00;
}

.feature-box p {
        flex-grow: 1;
        text-align: justify;
        line-height: 1.5;
        font-size: 1rem;
}

/* NAV AUTH SECTION */
.auth-nav {
	display: flex;
	align-items: center;
	gap: 1rem;
}

.auth-user {
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.auth-user .username {
	font-size: 0.95rem;
	color: #fff;
}

.logout-form {
	margin: 0;
}

.logout-form .icon-button {
	background: none;
	border: none;
	cursor: pointer;
}


/* FOOTER */
footer {
	text-align: center;
	padding: 1rem;
	background-color: #1B263B;
	color: #fff;
}
/* NAVBAR - autenticazione */
.auth-nav {
	display: flex;
	align-items: center;
	gap: 1rem;
}

.admin-greeting {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	color: #fff;
}

.admin-greeting .logout a {
	color: #fff;
	text-decoration: underline;
	font-size: 0.9rem;
}


.admin-greeting svg {
	width: 24px;
	height: 24px;
	fill: #fff;
}

/* Stile base per il pulsante 
.btn-discover {
    display: inline-block;
    margin: 1rem auto 0 auto; 
    padding: 0.5rem 1rem;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: background-color 0.2s ease;
    text-align: center;
}*/

/* Colori per ogni progetto 
.ltrad .btn-discover {
    background-color: #007bff; 
}
.ltrad .btn-discover:hover {
    background-color: #0056b3;
}

.fire .btn-discover {
    background-color: #cc0000; 
}
.fire .btn-discover:hover {
    background-color: #990000;
}

.volcano .btn-discover {
    background-color: #cc9900;
}
.volcano .btn-discover:hover {
    background-color: #b38600;
}*/

/* Centra il contenuto del feature-box 
.feature-box {
    display: flex;
    flex-direction: column;
    align-items: center; 
    text-align: center;
}*/

/* Pulsante */
.btn-discover {
    display: inline-block;
    align-self: center; /* centra orizzontalmente */
    padding: 0.5rem 1rem;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: background-color 0.2s ease;
}

/* Colori per progetto */
.ltrad .btn-discover {
    background-color: #007bff;
}
.ltrad .btn-discover:hover {
    background-color: #0056b3;
}

.fire .btn-discover {
    background-color: #cc0000;
}
.fire .btn-discover:hover {
    background-color: #990000;
}

.volcano .btn-discover {
    background-color: #cc9900;
}
.volcano .btn-discover:hover {
    background-color: #b38600;
}


.contact {
	text-align: center;
	background-color: #0b1a2f;
	color: white;
	padding: 0.5rem 0.5rem;
	font-size: 1.2rem;
	
}

.contact a {
	color: #00bfff;
	font-weight: bold;
	text-decoration: none;
	transition: color 0.3s ease;
}

.contact a:hover {
	color: #0099cc;
	text-decoration: underline;
}