/* =========================
   ESMUN'26 Global Styles
========================= */

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

:root {
    --navy: #081426;
    --navy-light: #10213d;
    --blue: #2d5fff;
    --orange: #f4a949;
    --white: #ffffff;
    --text: #d9e3f0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(
        135deg,
        #081426 0%,
        #0d1d36 50%,
        #13284a 100%
    );
    color: var(--white);
    overflow-x: hidden;
}

/* =========================
   Splash Screen
========================= */

#splash-screen {
    position: fixed;
    inset: 0;

    background: #081426;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    z-index: 9999;
}

.splash-logo {

    width: 240px;

    height: 240px;

    object-fit: cover;

    border-radius: 50%;

    margin-bottom: 2rem;

    animation: logoFade 1s ease;
}
@keyframes logoFade {

    from {

        opacity: 0;
    }

    to {

        opacity: 1;
    }
}
.intro-text {
    text-align: center;
}

.intro-text p {
    font-family: 'Space Grotesk', sans-serif;
    letter-spacing: 3px;
    margin: 0.8rem 0;
    opacity: 0.85;
}
.intro-line {

    opacity: 0;

    transform: translateY(12px);

    animation-fill-mode: forwards;
}

.line1 {

    animation: revealLine .8s ease forwards;
    animation-delay: .4s;
}

.line2 {

    animation: revealLine .8s ease forwards;
    animation-delay: 1.2s;
}

.line3 {

    animation: revealLine .8s ease forwards;
    animation-delay: 2s;
}

@keyframes revealLine {

    from {

        opacity: 0;

        transform: translateY(12px);
    }

    to {

        opacity: 1;

        transform: translateY(0);
    }
}

/* =========================
   Main Content
========================= */

#main-content {
    display: none;
}

/* =========================
   Navbar
========================= */

.navbar {
    width: 100%;
    padding: 1.2rem 6%;

    display: flex;
    justify-content: space-between;
    align-items: center;

    position: fixed;
    top: 0;

    background: rgba(8,20,38,0.55);

    backdrop-filter: blur(12px);

    z-index: 1000;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-container img {

    width: 58px;

    height: 58px;

    object-fit: cover;

    border-radius: 50%;
}

.logo-container span {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: white;
    transition: 0.3s;
}

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

.register-btn {
    text-decoration: none;

    border: 1px solid var(--orange);

    padding: 0.8rem 1.3rem;

    border-radius: 999px;

    color: white;

    transition: 0.3s;
}

.register-btn:hover {
    background: var(--orange);
    color: #081426;
}

/* =========================
   Hero
========================= */

.hero {
    min-height: 100vh;

    display: flex;
    justify-content: space-between;
    align-items: center;

    padding: 0 8%;

    position: relative;
}

.hero-content {
    max-width: 650px;
}

.conference-tag {
    color: var(--orange);
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.hero h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 5.5rem;
    margin-bottom: 0.5rem;
}

.hero h2 {
    font-size: 2rem;
    font-weight: 400;
    color: #b8c8de;
}

.hero-description {
    margin-top: 1.5rem;
    line-height: 1.8;
    color: var(--text);
    max-width: 520px;
}

.hero-button {
    display: inline-block;

    margin-top: 2rem;

    text-decoration: none;

    background: var(--orange);

    color: #081426;

    padding: 1rem 1.8rem;

    border-radius: 999px;

    font-weight: 600;

    transition: 0.3s;
}

.hero-button:hover {
    transform: translateY(-3px);
}

/* =========================
   Orb Graphic
========================= */

.hero-graphic {

    flex: 1;

    display: flex;

    justify-content: center;

    align-items: center;

    min-width: 400px;
}

.orb {
    width: 340px;
    height: 340px;

    border-radius: 50%;

    background:
        radial-gradient(
            circle,
            rgba(45,95,255,0.9),
            rgba(45,95,255,0.15)
        );

    filter: blur(5px);

    animation: floatOrb 5s ease-in-out infinite;
}

@keyframes floatOrb {

    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0);
    }
}

/* =========================
   Footer
========================= */

footer {
    text-align: center;
    padding: 2rem;
    color: #9bb0cb;
}

/* =========================
   Responsive
========================= */

@media (max-width: 1000px) {

    .hero {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        gap: 4rem;
    }

    .hero h1 {
        font-size: 4rem;
    }

    .hero-content {
        margin-top: 7rem;
    }

    .nav-links {
        display: none;
    }
}
/* Blueprint Grid */

body::before {

    content: "";

    position: fixed;

    inset: 0;

    background-image:
        linear-gradient(
            rgba(255,255,255,0.03) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(255,255,255,0.03) 1px,
            transparent 1px
        );

    background-size: 60px 60px;

    pointer-events: none;

    z-index: -1;
}

/* Homepage Countdown */

.countdown-section {

    padding: 4rem 8% 8rem;

    text-align: center;
}

.countdown-section h3 {

    font-size: 1.8rem;

    margin-bottom: 1rem;

    font-family: 'Space Grotesk', sans-serif;
}

#countdown {

    font-size: 2rem;

    color: var(--orange);

    letter-spacing: 2px;

    font-weight: 600;
}

.page-hero {

    min-height: 70vh;

    display: flex;

    flex-direction: column;

    justify-content: center;

    align-items: center;

    text-align: center;

    padding: 0 8%;

    margin-bottom: 2rem;
}

.page-hero h1 {

    font-family: 'Space Grotesk', sans-serif;

    font-size: 4rem;

    margin-bottom: 1rem;
}

.page-hero p {

    max-width: 800px;

    color: var(--text);

    line-height: 1.8;
}

.register-options {

    padding: 0 8% 6rem;

    display: flex;

    justify-content: center;

    flex-wrap: wrap;

    gap: 2rem;
}

.register-card,
.contact-card {

    width: 320px;

    background: rgba(255,255,255,0.05);

    padding: 2rem;

    border-radius: 20px;

    text-align: center;
}

.register-card a {

    display: inline-block;

    margin-top: 1rem;

    text-decoration: none;

    color: var(--orange);
}

.contact-section {

    padding: 0 8% 6rem;

    display: flex;

    justify-content: center;

    flex-wrap: wrap;

    gap: 2rem;
}
/* =========================
   Future Orb
========================= */

.future-orb {

    position: relative;

    width: 360px;

    height: 360px;

    display: flex;

    justify-content: center;

    align-items: center;

    animation: floatOrb 6s ease-in-out infinite;
}

.orb-core {

    position: absolute;

    width: 320px;

    height: 320px;

    border-radius: 50%;

    background:
        radial-gradient(
            circle,
            rgba(45,95,255,0.95) 0%,
            rgba(45,95,255,0.55) 50%,
            rgba(45,95,255,0.05) 100%
        );

    box-shadow:
        0 0 80px rgba(45,95,255,0.45);
}

.orb-ring {

    position: absolute;

    inset: 30px;

    border-radius: 50%;

    border: 1px solid rgba(255,255,255,0.15);

    animation: rotateRing 16s linear infinite;
}

.orbit-node {

    position: absolute;

    width: 12px;

    height: 12px;

    border-radius: 50%;

    background: var(--orange);

    box-shadow:
        0 0 10px rgba(244,169,73,.8);
}

.node1 {

    top: 12%;

    left: 48%;
}

.node2 {

    bottom: 18%;

    left: 18%;
}

.node3 {

    right: 12%;

    top: 55%;
}

@keyframes rotateRing {

    from {

        transform: rotate(0deg);
    }

    to {

        transform: rotate(360deg);
    }
}
/* =========================
   Mobile Navigation
========================= */

.hamburger {

    display: none;

    font-size: 2rem;

    cursor: pointer;

    color: white;
}

@media (max-width: 1000px) {

    .navbar {

        flex-wrap: wrap;
    }

    .hamburger {

        display: block;
    }

    .nav-links {

        width: 100%;

        display: none;

        flex-direction: column;

        text-align: center;

        padding-top: 1rem;

        gap: 1rem;
    }

    .nav-links.active {

        display: flex;
    }

    .register-btn {

        display: none;
    }
}
/* =========================
Committees
========================= */

.committees-container {

width: 100%;

padding: 0 8% 6rem;

display: flex;

flex-direction: column;

align-items: center;

gap: 2rem;

}

.committee-card {

width: 85%;

max-width: 950px;

background: rgba(255,255,255,0.05);

border: 1px solid rgba(255,255,255,0.08);

border-radius: 24px;

padding: 2rem;

transition: all .3s ease;

backdrop-filter: blur(10px);

}

.committee-card:hover {

transform: translateY(-6px);

border-color: var(--orange);

box-shadow:
    0 0 25px rgba(244,169,73,0.12);


}

.committee-card h2 {

font-family: 'Space Grotesk', sans-serif;

font-size: 2rem;

color: var(--orange);

margin-bottom: .4rem;

}

.committee-card h3 {

font-size: 1rem;

color: var(--text);

font-weight: 500;

margin-bottom: 1.8rem;

}

.committee-label {

display: inline-block;

margin-bottom: 1.4rem;

padding: .35rem .8rem;

border-radius: 999px;

background: rgba(244,169,73,0.15);

color: var(--orange);

font-size: .85rem;

letter-spacing: 1px;

}

.committee-card p {

line-height: 1.9;

color: var(--text);

}

.freeze-badge {

margin-top: 1.5rem;

display: inline-block;

padding: .6rem 1rem;

border-radius: 999px;

background: rgba(255,255,255,0.08);

color: var(--white);

font-size: .9rem;

}

.ip-tags {

margin-top: 2rem;

display: flex;

gap: 1rem;

flex-wrap: wrap;

}

.ip-tags span {

padding: .75rem 1.2rem;

border-radius: 999px;

background: rgba(244,169,73,0.15);

color: var(--orange);

font-size: 1rem;

font-weight: 600;

letter-spacing: .5px;

}
/* =========================
About Page
========================= */

.about-page .page-hero {

min-height: 28vh;

padding-top: 7rem;

padding-bottom: 1rem;

margin-bottom: 0;
}

.about-content {

width: 100%;

max-width: 1000px;

margin: 0 auto 6rem auto;

padding: 0 8%;
}

.about-content p {

    color: var(--text);

    line-height: 2;

    margin-bottom: 2rem;

    font-size: 1.1rem;
}
/* =========================
   Contact Page
========================= */

.contact-card {

    width: 320px;

    background: rgba(255,255,255,0.05);

    padding: 2rem;

    border-radius: 20px;

    text-align: center;

    border: 1px solid rgba(255,255,255,0.08);

    transition: all .3s ease;
}

.contact-card:hover {

    transform: translateY(-6px);

    border-color: var(--orange);

    box-shadow:
        0 0 25px rgba(244,169,73,0.12);
}

.contact-card h3 {

    color: var(--orange);

    font-family: 'Space Grotesk', sans-serif;

    margin-bottom: 1rem;
}

.contact-card p {

    line-height: 1.8;
}

.contact-card a {

    color: var(--text);

    text-decoration: none;

    transition: 0.3s;
}

.contact-card a:hover {

    color: var(--orange);
}