:root {
    --primary-blue: #0875F9;
    --deep-blue: #0754A8;
    --sky-blue: #38D7D7;
    --turquoise: #14CACA;
    --turquoise-light: #80F5F0;
    --black: #000000;
    --dark-background: #05080D;
    --surface-dark: #101722;
    --surface-light: #FFFFFF;
    --text-primary: #F5F7FA;
    --text-secondary: #C3CCD8;
    --border-color: rgba(56, 215, 215, 0.22);
}
/* Reset */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Tahoma, Arial, sans-serif;
    background: var(--dark-background);
    color: var(--text-primary);
    min-height: 100vh;
}

/* =========================
   Intro Screen
========================= */

.intro {
    position: fixed;
    inset: 0;
    z-index: 1000;

    display: grid;
    place-items: center;

    padding: 30px 20px;

    overflow-y: auto;

    background: var(--dark-background);

    transition:
        opacity 1s ease,
        visibility 1s ease;
}

.intro-content {
    width: 100%;
    max-width: 900px;

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

    text-align: center;
}

/* University Label */

.intro-eyebrow {
    color: var(--text-secondary);
    font-size: 14px;
    letter-spacing: 1px;

    margin-bottom: 20px;

    animation: fadeUp 0.7s ease both;
}

/* Main Title */

.intro-title {
    color: var(--text-primary);

    font-size: clamp(48px, 9vw, 92px);
    font-weight: 800;

    letter-spacing: -3px;
    line-height: 1.1;

    animation: fadeUp 0.8s ease 0.1s both;
}

.intro-title span {
    color: var(--sky-blue);
}

/* Description */

.intro-description {
    margin-top: 18px;

    color: var(--text-secondary);

    font-size: clamp(15px, 2vw, 18px);
    line-height: 1.9;

    animation: fadeUp 0.8s ease 0.2s both;
}

/* =========================
   Logo Placeholders
========================= */

.intro-logos {
    width: 100%;
    max-width: 650px;

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

    gap: 24px;

    margin-top: 55px;
}


.logo-placeholder {
    width: 130px;
    height: 130px;
    min-height: 130px;
    flex: 0 0 130px;

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

    gap: 8px;
    padding: 10px;

    box-sizing: border-box;
    border: 1px solid var(--border-color);
    border-radius: 16px;

    background: var(--surface-dark);
    color: var(--text-secondary);

    font-size: 13px;
    line-height: 1.5;

    animation: fadeUp 0.7s ease both;
}


.logo-placeholder img {
    width: 100px;
    height: 100px;
    max-width: 100%;
    object-fit: contain;
    object-position: center;
}


.logo-placeholder:nth-child(1) {
    animation-delay: 0.3s;
}

.logo-placeholder:nth-child(2) {
    animation-delay: 0.45s;
}

.logo-placeholder:nth-child(3) {
    animation-delay: 0.6s;
}

.logo-symbol {
    width: 48px;
    height: 48px;

    display: grid;
    place-items: center;

    border-radius: 13px;

    background: var(--primary-blue);
    color: var(--black);

    font-size: 15px;
    font-weight: bold;

    direction: ltr;
}



.skip-intro {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    gap: 12px;

    min-height: 46px;

    margin-top: 42px;
    padding: 12px 24px;

    border: 1px solid var(--border-color);
    border-radius: 10px;

    background: var(--surface-dark);
    color: var(--text-primary);

    font-family: inherit;
    font-size: 14px;

    cursor: pointer;

    transition:
        background 0.25s ease,
        color 0.25s ease,
        border-color 0.25s ease,
        transform 0.25s ease;

    animation: fadeUp 0.8s ease 0.7s both;
}

.skip-intro:hover {
    background: var(--primary-blue);
    color: var(--black);
    border-color: var(--primary-blue);

    transform: translateY(-2px);
}

.skip-intro:focus-visible {
    outline: 3px solid var(--sky-blue);
    outline-offset: 4px;
}

/* Footer Label */

.intro-footer {
    position: absolute;
    bottom: 22px;

    color: var(--text-secondary);

    font-size: 10px;
    letter-spacing: 3px;

    direction: ltr;
}



.intro.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}



.home {
    min-height: 100vh;
}


.brand-logo {
    display: block;
    width: 44px;
    height: 44px;
    max-width: 44px;
    max-height: 44px;
    flex: 0 0 44px;
    object-fit: contain;
    object-position: center;
}

.home[hidden] {
    display: none;
}



@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


@media (max-width: 600px) {

    .intro {
        padding: 25px 16px 55px;
    }

    .intro-title {
        letter-spacing: -2px;
    }

    .intro-logos {
        gap: 10px;
        margin-top: 38px;
    }

    .logo-placeholder {
        width: calc((100% - 20px) / 3);
        min-height: 115px;
        flex: 0 1 calc((100% - 20px) / 3);
        min-width: 0;

        padding: 12px 5px;

        font-size: 11px;
        border-radius: 12px;
    }
   
    .logo-symbol {
        width: 40px;
        height: 40px;

        font-size: 13px;
    }

    .skip-intro {
        margin-top: 30px;
    }

    .intro-footer {
        bottom: 12px;
        font-size: 8px;
        letter-spacing: 2px;
    }
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
}

.hero-image {
    display: block;
    width: 100%;
    max-width: 340px;
    height: 340px;
    object-fit: contain;
    object-position: center;
}



@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }

}