:root {
    --primary-color: #EF7D00;
    --secondary-color: #262262;
    --dark-bg: #0f2145;
    --light-bg: #FFFDF9;
    --gray-bg: #D9D9D9;
    --text-color: #262262;
    --white: #ffffff;
    --stars-background: #0f2145;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 9.5em;
}

body {
    font-family: var(--font-main);
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

h2 {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: .5em;
    text-align: center;
}

h3 {
    font-size: 24px;
    margin-bottom: .5em;
    text-align: center;
}

a {
    color: inherit;
}

li {
    margin-left: 2em;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 80px;
}

/* Header */
.header {
    background-color: var(--white);
    height: 120px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-img {
    height: 90px;
    display: block;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}

.nav a:hover {
    color: var(--primary-color);
}

/* Menu Section */
.menu-section {
    background-color: white;
    padding: 1em 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.menu-section .container {
    align-items: center;
    display: flex;
}

.menu-logo {
    display: inline-block;
}
.menu-logo img {
    width: 7em;
}

.menu-items {
    align-items: center;
    display: inline-flex;
    justify-content: end;
    width: calc(100% - 8em);
    /* display: flex; */
    gap: 2rem;
}
.menu-items-item {
    color: var(--text-color);
    background-color: var(--white);
    border: 1px solid rgba(0,0,0,0.05);
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    padding: 1em 1em;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
    width: 9em;
}
.menu-items-item:hover {
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
    transform: translateY(-5px);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: currentColor;
    transition: all 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
        align-self: start;
        position: absolute;
        right: 0;
    }
    
    .menu-items {
        position: fixed;
        top: 80px;           /* Adjust based on your header height */
        right: 0;
        background: white;   /* Change to match your design */
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        padding: 2rem 0;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        z-index: 1000;
    }
    
    .menu-items.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .menu-items-item {
        font-size: 1.1rem;
    }
}

/* Reach The Stars Section */
.reach-the-stars-section {
    background-color: var(--stars-background);
    color: var(--white);
}

.reach-the-stars-grid {
    display: grid;
    grid-template-columns: 100%;
    gap: 0px;
    align-items: center;
}

.reach-the-stars-img {
    width: 100%;
}

.reach-the-stars-dates {
    align-items: center;
    display: flex;
    font-size: large;
    font-weight: bolder;
    justify-content: space-around;
    text-align: center;
    vertical-align: middle;
}
.reach-the-stars-dates span {
    margin: 1em .5em;
}
@media (max-width: 640px) {
    .container {
        padding: 0 .5em !important;
    }
    .reach-the-stars-dates {
        justify-content: space-between;
    }
}

/* Welcome Section */
.welcome-section {
    background-color: var(--light-bg);
    color: var(--secondary-color);
    padding: 3em 0;
}

.welcome-section p {
    margin-bottom: 1em;
}

/* Programme Section */
.programme-section {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 3em 0;
}

.programme-cta {
    text-align: center;
    margin-top: 1.5em;
}

.programme-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    font-weight: 700;
    padding: 0.9em 1.4em;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.programme-button:hover {
    background-color: #ff8c1a;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
    transform: translateY(-2px);
}

/* Venue Section */
.venue-section {
    background-color: var(--light-bg);
    color: var(--secondary-color);
    padding: 2em 0;
}

.venue-section > .container {
    padding: 0 25em;
}

/* Registration Section */
.registration-section {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 2em 0;
}

.registration-cta {
    text-align: center;
}

.registration-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    font-weight: 700;
    padding: 0.9em 1.4em;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.registration-button:hover {
    background-color: #ff8c1a;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
    transform: translateY(-2px);
}

/* Slideshow Section */
.slideshow-section {
    background-color: var(--light-bg);
    color: var(--white);
    padding: 120px 0;
}
.slideshow-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    background-color: #000;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 40px 100px rgba(0,0,0,0.2);
}

.slideshow-content {
    position: relative;
    height: 700px;
}

.slideshow-track {
    display: flex;
    width: 800%;
    height: 100%;
    animation: scroll 40s linear infinite;
}

.slide {
    width: 12.5%;
    height: 100%;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
}

.slideshow-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 33, 69, 0.4);
    pointer-events: none;
}

.slideshow-text {
    font-size: 60px;
    color: white;
    text-transform: lowercase;
    font-weight: 300;
    letter-spacing: 10px;
    opacity: 0.9;
    border: 1px solid rgba(255,255,255,0.3);
    padding: 20px 60px;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-87.5%); }
}

/* Alliance Section */
.alliance-section {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 120px 0;
}

.alliance-cofundedby {
    text-align: center;
    font-size: 48px;
    color: var(--secondary-color);
    margin-bottom: 80px;
    font-weight: 800;
}
.alliance-cofundedby img {
    max-width: 90%;
}

.alliance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.alliance-item {
    background-color: var(--white);
    padding: 50px 40px;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.alliance-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}

.alliance-logo {
    height: 80px;
    max-width: 100%;
    object-fit: contain;
    margin-bottom: 30px;
}

.alliance-item p {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 18px;
    line-height: 1.3;
}

/* Footer */
.footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.footer-content p {
    font-size: 18px;
    opacity: 0.7;
    margin-bottom: 10px;
}
.footer-content p a {
    color: white;
}

/* Responsive */
@media (max-width: 1200px) {
    .container {
        padding: 0 40px;
    }
    .hero h1 {
        font-size: 60px;
    }
}

@media (max-width: 1024px) {
    .welcome-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    .welcome-image {
        order: -1;
    }
    .alliance-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header {
        height: 100px;
    }
    .logo-img {
        height: 60px;
    }
    .nav {
        display: none;
    }
    .hero h1 {
        font-size: 40px;
    }
    .impact-grid {
        flex-direction: column;
        gap: 60px;
    }
    .impact-number {
        font-size: 80px;
    }
}

@media (max-width: 480px) {
    .alliance-grid {
        grid-template-columns: 1fr;
    }
    .goglobal-ipb {
        display: none !important;
    }
}