:root{
    --brown:#623a17;
    --green:#2e7d32;
    --green-light:#4caf50;
    --cream:#f5efe6;
    --white:#ffffff;
    --text:#2b2b2b;
}

/* RESET */
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Inter',sans-serif;
}

html{
    scroll-behavior:smooth;
    scroll-padding-top:90px;
}

body{
    background:var(--cream);
    color:var(--text);
    overflow-x:hidden;
    line-height:1.7;
}

/* NAVIGATION */
nav{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:15px 40px;
    background:rgba(98,58,23,0.95);
    backdrop-filter:blur(10px);
    z-index:1000;
    transition:0.3s;
}

.logo{
    display:flex;
    align-items:center;
    text-decoration:none;
}

.logo img{
    height:60px;
    width:auto;
    transition:0.3s;
}

.logo:hover img{
    transform:scale(1.05);
}

.nav-links{
    display:flex;
    gap:25px;
}

.nav-links a{
    text-decoration:none;
    color:var(--white);
    font-weight:600;
    transition:0.3s;
}

.nav-links a:hover{
    color:var(--green-light);
}

/* HERO SECTION */
.hero{
    min-height:100vh;
    display:flex;
    align-items:center;
    padding:120px 60px;
    background:
        linear-gradient(
            rgba(98,58,23,0.85),
            rgba(46,125,50,0.55)
        ),
        url("images/hero.jpg");

    background-size:cover;
    background-position:center;
    background-repeat:no-repeat;
    color:var(--white);
}

.hero-content{
    max-width:750px;
}

.hero h1{
    font-size:clamp(2.5rem,6vw,5rem);
    font-weight:800;
    line-height:1.1;
    margin-bottom:20px;
}

.hero p{
    max-width:650px;
    font-size:1.1rem;
    opacity:0.95;
}

/* BUTTONS */
.btn{
    display:inline-block;
    margin-top:25px;
    padding:15px 32px;
    background:var(--green);
    color:var(--white);
    text-decoration:none;
    border-radius:8px;
    font-weight:600;
    transition:0.3s ease;
}

.btn:hover{
    background:var(--green-light);
    transform:translateY(-3px);
}

/* COUNTDOWN */
.countdown{
    display:flex;
    gap:15px;
    flex-wrap:wrap;
    margin-top:30px;
}

.countdown div{
    background:rgba(255,255,255,0.15);
    backdrop-filter:blur(8px);
    padding:15px;
    border-radius:10px;
    text-align:center;
    min-width:80px;
}

.countdown span{
    display:block;
    font-size:1.5rem;
    font-weight:700;
}

/* SECTIONS */
.section{
    padding:100px 60px;
    scroll-margin-top:100px;
}

.section h2{
    font-size:2.2rem;
    color:var(--brown);
    margin-bottom:20px;
    position:relative;
}

.section h2::after{
    content:"";
    display:block;
    width:80px;
    height:4px;
    background:var(--green);
    margin-top:10px;
}

/* GRID */
.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:25px;
}

/* PROGRAM CARDS */
.card{
    background:var(--white);
    padding:25px;
    border-radius:15px;
    border-left:5px solid var(--green);
    box-shadow:0 8px 25px rgba(0,0,0,0.08);
    transition:0.3s;
}

.card:hover{
    transform:translateY(-6px);
}

/* SPEAKERS */
.speakers-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:30px;
}

.speaker-card{
    background:var(--white);
    padding:30px 20px;
    text-align:center;
    border-radius:15px;
    box-shadow:0 10px 25px rgba(0,0,0,0.08);
    border-top:4px solid var(--green);
    transition:0.3s;
}

.speaker-card:hover{
    transform:translateY(-8px);
}

.speaker-card img{
    width:120px;
    height:120px;
    border-radius:50%;
    object-fit:cover;
    object-position:center;
    border:4px solid var(--green);
    margin-bottom:15px;
}

.speaker-card h3{
    color:var(--brown);
    margin-bottom:8px;
}

.speaker-title{
    color:var(--green);
    font-weight:600;
    margin-bottom:10px;
    font-size:0.95rem;
}

.speaker-card p{
    color:#555;
    font-size:0.95rem;
}

/* FAQ */
.faq-item{
    background:var(--white);
    padding:20px;
    border-radius:12px;
    margin-bottom:15px;
    box-shadow:0 5px 15px rgba(0,0,0,0.05);
}

.faq-item h4{
    color:var(--brown);
    margin-bottom:10px;
}

/* FOOTER */
footer{
    background:var(--brown);
    color:var(--white);
    text-align:center;
    padding:40px 20px;
}

/* REVEAL ANIMATION */
.reveal{
    opacity:0;
    transform:translateY(30px);
    transition:0.8s ease;
}

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

/* TABLETS */
@media(max-width:992px){

    .hero{
        padding:120px 40px;
    }

    .section{
        padding:80px 40px;
    }

    nav{
        padding:15px 25px;
    }
}

/* MOBILE */
@media(max-width:768px){

    nav{
        flex-direction:column;
        gap:12px;
        padding:15px;
    }

    .nav-links{
        flex-wrap:wrap;
        justify-content:center;
        gap:15px;
    }

    .hero{
        text-align:center;
        padding:120px 20px;
    }

    .hero h1{
        font-size:2.5rem;
    }

    .hero p{
        font-size:1rem;
    }

    .countdown{
        justify-content:center;
    }

    .section{
        padding:70px 20px;
    }

    .section h2{
        font-size:1.8rem;
    }

    .speaker-card img{
        width:100px;
        height:100px;
    }
}

/* SMALL PHONES */
@media(max-width:480px){

    .hero h1{
        font-size:2rem;
    }

    .countdown div{
        min-width:65px;
        padding:10px;
    }

    .countdown span{
        font-size:1.2rem;
    }
}