/* ==========================================
   THE HW VAULT
   style.css
   ========================================== */

:root {
    --bg: #111315;
    --bg-elevated: #181b1f;
    --bg-panel: #20242a;
    --bg-hover: #292f36;

    --border: #31363d;
    --border-strong: #454b53;

    --text: #f4f4f4;
    --text-muted: #9aa2ab;

    --accent: #d0d4d8;
    --shadow: rgba(0, 0, 0, 0.45);

    --radius: 12px;
    --radius-small: 8px;

    --transition: 180ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family:
        Inter,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    display: flex;
    flex-direction: column;
}

/* ==========================================
   Utility
   ========================================== */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
}

/* ==========================================
   Header
   ========================================== */

.site-header {
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: 22px 48px;
}

.main-navigation {
    max-width: 1400px;
    margin: 0 auto;

    display: flex;
    justify-content: center;
    gap: 16px;
}

.nav-button {
    width: 52px;
    height: 52px;

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

    padding: 0 20px;
    width: auto;
    min-width: 52px;

    background: var(--bg-panel);

    border: 1px solid var(--border);
    border-radius: var(--radius-small);

    color: var(--text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;

    transition:
        background var(--transition),
        border-color var(--transition),
        transform var(--transition),
        color var(--transition);
}

.nav-button:visited {
    color: var(--text);
}

.nav-button:hover {
    color: #ffffff;
    background: var(--bg-hover);
    border-color: var(--border-strong);
    transform: translateY(-2px);
}

.nav-button:active {
    color: #ffffff;
}


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

.main-interface {
    flex: 1;

    width: min(1400px, 92%);
    margin: 60px auto;

    display: flex;
    flex-direction: column;
    gap: 48px;
}

/* ==========================================
   Search Console
   ========================================== */

.search-console {
    background: var(--bg-elevated);

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

    padding: 34px;

    box-shadow:
        0 18px 40px var(--shadow);
}

.search-input-wrapper {
    margin-bottom: 28px;
}

.search-form {
    width: 100%;
}

.search-input {
    width: 100%;
    height: 66px;

    background: var(--bg-panel);

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

    color: var(--text);

    font-size: 1rem;

    padding: 0 22px;

    outline: none;

    transition:
        border-color var(--transition),
        background var(--transition);
}

.search-input:hover {
    background: var(--bg-hover);
}

.search-input:focus {
    border-color: var(--border-strong);
    background: var(--bg-hover);
}

.search-input::placeholder {
    color: var(--text-muted);
}

/* ==========================================
   Filters
   ========================================== */

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.filter-component {
    flex: 1;
    min-width: 180px;
}

.filter-select {
    width: 100%;
    height: 52px;

    background: var(--bg-panel);
    color: var(--text);

    border: 1px solid var(--border);
    border-radius: var(--radius-small);

    padding: 0 16px;

    cursor: pointer;
    outline: none;

    transition:
        background var(--transition),
        border-color var(--transition);
}

.filter-select:hover {
    background: var(--bg-hover);
}

.filter-select:focus {
    border-color: var(--border-strong);
}

/* ==========================================
   Repository
   ========================================== */

.results-repository {
    display: flex;
    flex-direction: column;
}

.results-grid {
    display: grid;
    gap: 20px;
}

/* ==========================================
   Repository Item
   ========================================== */

.repository-item {
    background: var(--bg-elevated);

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

    padding: 24px 28px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;

    transition:
        border-color var(--transition),
        background var(--transition),
        transform var(--transition);
}

.repository-item:hover {
    background: var(--bg-panel);
    border-color: var(--border-strong);
    transform: translateY(-2px);
}

.item-content {
    flex: 1;

    display: flex;
    flex-direction: column;
    gap: 14px;
}

.item-header {
    display: flex;
    align-items: center;
}

.item-title {
    width: 300px;
    max-width: 100%;
    height: 18px;

    background: #383e46;
    border-radius: 5px;
}

.item-metadata {
    display: flex;
    align-items: center;
}

.metadata-tag {
    width: 90px;
    height: 28px;

    background: #2b3037;

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

    border-radius: 999px;
}

.item-action {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.download-button {
    width: 130px;
    height: 44px;

    background: var(--bg-panel);

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

    border-radius: var(--radius-small);

    cursor: pointer;

    transition:
        background var(--transition),
        border-color var(--transition),
        transform var(--transition);
}

.download-button:hover {
    background: var(--bg-hover);
    border-color: var(--border-strong);
    transform: translateY(-1px);
}

.download-button:active {
    transform: translateY(0);
}

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

.site-footer {
    margin-top: auto;

    height: 72px;

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

    background: var(--bg-elevated);
}

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

@media (max-width: 900px) {
    .repository-item {
        flex-direction: column;
        align-items: stretch;
    }

    .item-action {
        justify-content: stretch;
    }

    .download-button {
        width: 100%;
    }

    .site-header {
        padding: 18px;
    }

    .main-interface {
        width: 94%;
        margin: 32px auto;
    }

    .search-console {
        padding: 24px;
    }
}

@media (max-width: 600px) {
    .main-navigation {
        gap: 10px;
        flex-wrap: wrap;
    }

    .nav-button {
        width: 46px;
        height: 46px;
    }

    .filter-row {
        flex-direction: column;
    }

    .item-title {
        width: 75%;
    }
}

.result-link{

    display:block;

    color:inherit;

    text-decoration:none;

}

.repository-item{

    cursor:pointer;

}

.repository-item:hover{

    transform:translateY(-2px);

}

.homework-image {

    display: block;

    width: 100%;
    max-width: 900px;

    margin: 30px auto;

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

    background: var(--bg-panel);

    object-fit: contain;

}

.homework-actions {

    display: flex;
    justify-content: center;

    margin-top: 30px;

}

#homework-view {

    display: flex;
    flex-direction: column;

}

.auth-container {

    max-width: 500px;

    margin: 80px auto;

}


.auth-container h1 {

    margin-bottom: 35px;

    text-align: center;

}


.auth-form {

    display: flex;

    flex-direction: column;

    gap: 22px;

}


.auth-field {

    display: flex;

    flex-direction: column;

    gap: 8px;

}


.auth-field label {

    color: var(--text-muted);

    font-size: 0.9rem;

}


.auth-button {

    margin-top: 15px;

    cursor: pointer;

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

}


#signup-message {

    margin-top: 25px;

    text-align: center;

    color: var(--text-muted);

}


.profile-details {

    display: flex;

    flex-direction: column;

    gap: 18px;

    margin: 35px 0;

}


.profile-details p {

    color: var(--text-muted);

}


.profile-details span {

    color: var(--text);

}


#logout-button {

    cursor: pointer;

}


.vault-title {

    text-align: center;

    margin: 80px 0 50px;

}


.vault-title h1 {

    font-size: clamp(3rem, 8vw, 6rem);

    font-weight: 800;

    letter-spacing: -0.04em;

    color: #f2f2f2;

    margin: 0;

    text-transform: uppercase;

}


.vault-title p {

    margin-top: 15px;

    color: #8c8c8c;

    font-size: 1.1rem;

}