@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;600;700&display=swap');

:root {

    --mint: #3eb489;
    --light-green: #98fb98;
    --cream: #EBF5B8;
    --lavender: #c8ace2;
    --mauve: #E6B1FA;

    --color-bg: linear-gradient(135deg, var(--mint), var(--cream), var(--lavender));
    --color-text: oklch(25% 0.04 200);
    --color-accent: var(--mint); 
    --nav-padding: 1.2rem;
    --nav-gap: 2rem;
    --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;

    --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --transition: 0.3s ease;
}


/* Dark mode */
body:has(#theme-toggle:checked) {
  --mint: #456c8b;
  --light-green: #364c70;
  --cream: #672674;
  --lavender: #2a1a3b;
  --mauve: #562f75;

  --color-accent: color-mix(in oklab, var(--mauve), white 20%);
  --color-text: oklch(95.233% 0.00843 271.332);
  --color-bg: linear-gradient(135deg, var(--mint), var(--cream), var(--lavender));
}


/* Fallbacks */
body {
    font-family: var(--font-body, Arial, sans-serif);
    margin: 0;
    background: var(--color-bg, #e2f2f5);
    color: var(--color-text);
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
}

/* Smooth transitions for theme change */
*, *::before, *::after {
    transition: background var(--transition), color var(--transition), border var(--transition);
    box-sizing: border-box;
}

/* Header and Nav */
header {
    padding: var(--nav-padding);
    position: sticky;
    top: 0;
    z-index: 1;

    nav {
        display: flex;
        justify-content: center;
        align-items: center;
        transition: var(--transition);

        &:hover {
            transform: translateY(3px);
        }

        ul {
            display: flex;   
            align-items: center;
            gap: var(--nav-gap); 
            list-style: none;
            padding: 0.4rem 0.6rem;
            margin: 0;

            -background: color-mix(in oklab, white 70%, var(--lavender) 30%);
            border-radius: 2.5rem;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow);

            li {
                display: flex;
                align-items: center;
            }

            li a {
                text-decoration: none;
                color: var(--color-text);
                font-weight: 500;
                padding: 0.4em 1em;
                border-radius: 2rem;
                transition: color 0.3s ease;

                &.active {
                    background-color: rgba(255, 255, 255, 0.8);
                    color: var(--color-accent);
                    box-shadow: var(--shadow);
                }

                &:hover, 
                &:focus {
                    background-color: rgba(255, 255, 255, 0.5);
                    color: var(--color-accent);
                    box-shadow: var(--shadow);
                }
            }
        }
    }
}
 
#theme-toggle {
    appearance: none;
    
    & + label {
        display: flex;
        align-items: center;

        width: 1.5rem;
        height: 1.5rem;
        border-radius: 50%;

        background: var(--mint);
        box-shadow: inset -4px -4px 0 0 white;

        transition: all 0.4s ease;
        cursor: pointer;
    }
    
    &:hover + label {
        transform: scale(1.05);
    }

    &:checked + label {
        background: var(--cream);
        box-shadow: inset 6px 6px 0 0 white,
                    0 0 12px 4px color-mix(in oklab, var(--mauve), white 35%);
        transform: rotate(15deg);
    }
}


article {
    margin: 1.5rem;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2rem;
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow);
    transition: transform var(--transition);
}

fieldset {
    border: none;
    padding: 0;
    margin: 0;

    legend {
        font-weight: 700;
        margin-bottom: 2rem;
    }

    form {
        display: grid;

        input,
        textarea {
            padding: 0.6em 0.8em;
            border: 1px solid color-mix(in oklab, var(--color-text), white 70%);
            border-radius: 0.6rem;
            font: inherit;
        }

        input[required],
        textarea[required] {
            border-left: 4px solid var(--color-accent);
            padding: 0.6em;
        }

        input:user-invalid,
        textarea:user-invalid {
            border-color: crimson;
            background: rgba(220, 20, 60, 0.06);
        }

        input:valid,
        textarea:valid {
            border-color: seagreen;
            background: rgba(46, 139, 87, 0.06);
        }

        button {
            background: var(--mint);
            color: white;
            border: none;
            border-radius: 0.6rem;
            padding: 0.6em 1em;
            cursor: pointer;
            font-weight: 600;
            transition: background-color var(--transition), transform var(--transition);

            &:hover {
            background-color: var(--color-text);
            transform: translateY(-3px);
            }
        }
    }
}

.field-flash {
    outline: 2px solid crimson;
}


main {
    view-transition-name: main;
    display: grid;
    gap: 2rem;
    padding: 2rem 4dvw;

    #intro {
        text-align: center;
        display: flex;
        flex-direction: column;

        figure {
            margin: 2rem;
            display: flex;
            flex-direction: row;
            justify-content: space-around;
            gap: 4rem;

            picture, img {
                width: 100%;
                border-radius: 2rem;
                box-shadow: var(--shadow);
                object-fit: cover;
                object-position: center;
                animation: float 10s ease-in-out infinite;
            }

            figcaption {
                font-size: 2.5vw;
            }
        }

        h1 {
            font-size: 8vw;
            margin: 0;
        }
    }

    #project-list {

        #project-controls {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-block: 1rem 2rem;

            button {
                background: var(--color-accent);
                color: white;
                border: none;
                border-radius: 999px;
                padding: 0.5em 1.2em;
                font-weight: 600;
                cursor: pointer;
                box-shadow: var(--shadow);
                transition:
                    transform var(--transition),
                    box-shadow var(--transition),
                    background var(--transition);
            }

            button:hover {
                transform: translateY(-2px);
                box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
                background: color-mix(in oklab, var(--color-accent), white 15%);
            }
        }

        #project-cards {
            display: grid;
            gap: 1.5rem;
        }

        project-card > article.project-card {
            /* Use CSS variables for styling the card */
            --card-radius: 1.5rem;
            --card-bg: rgba(255, 255, 255, 0.4);

            display: grid;
            grid-template-columns: 200px 1fr;
            align-items: start;
            gap: 1.5rem;

            background: var(--card-bg);
            border-radius: var(--card-radius);
            padding: 1rem 1.5rem;
            box-shadow: var(--shadow);

            picture,
            img {
                width: 100%;
                max-width: 200px;
                border-radius: 1rem;
                object-fit: cover;
                object-position: center;
            }

            .card-body {
                display: grid;
                gap: 0.6rem;
            }

            .tags {
                display: flex;
                flex-wrap: wrap;
                gap: 0.4rem;
                list-style: none;
                padding: 0;
                margin: 0.4rem 0 0 0;

                li {
                    padding: 0.2em 0.6em;
                    border-radius: 999px;
                    font-size: 0.8rem;
                    background: color-mix(in oklab, var(--lavender), white 40%);
                }
            }

            @media (max-width: 700px) {
                grid-template-columns: 1fr;
                text-align: center;

                picture,
                img {
                    max-width: 100%;
                    margin-inline: auto;
                }
            }
        }
    }

    #project-crud-form
    {
        max-width: 48rem;
        margin-inline: auto;
        display: grid;
        gap: 1.5rem;

        section
        {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            padding: 1rem 1.2rem;
            border-radius: 1rem;
            background: rgba(255, 255, 255, 0.4);
            box-shadow: var(--shadow);
        }

        label
        {
            font-weight: 600;
            margin-top: 0.3rem;
        }

        button
        {
            justify-self: flex-start;
            padding: 1rem 2rem;
        }

        input::placeholder
        {
            color: var(--color-accent);
        }

        &.delete-mode
        {
            section
            {
                background: rgba(172, 4, 38, 0.322);
                color: black;
            }

            #project-fields
            {
                /* Visually and interactively "turn off" all non-id fields */
                input:not(#project-id),
                textarea:not(#project-id),
                label:not(#id-label),
                br
                {
                    display: none;
                }
            }
        }

    }

    #crud-message
    {
        min-height: 1.5rem;
        font-size: 1rem;
        font-weight: 600;
        padding: 0.3rem 0.6rem;
    }



    hr {
        display: none;
    }

}

footer {
    text-align: center;
    padding: 1rem;
}

@media (max-width: 700px) {
    main {

        #intro {

            figure {
                flex-direction: column;
                align-items: center;

                picture, img {
                    width: 100%;
                    height: 100%;
                }

                figcaption {
                    font-size: 1rem;
                    text-align: center;
                }
            }
        }
    }

}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}