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

@view-transition {
    navigation: auto;
}

:root {
    --primary-color-p3: color(display-p3 0.051 0.435 0.992);
    --primary-color: var(--primary-color-p3, #0d6efd);
    --primary-hover: oklch(from var(--primary-color) calc(l * 0.9) c h);
    --secondary-color: #6c757d;
    --bg-color: #ffffff;
    --text-color: #212529;
    --header-bg: #f8f9fa;
    --footer-bg: #212529;
    --footer-text: #f8f9fa;
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Merriweather', serif;
    --text-light: #555;
    --text-label: #222;
    --accent-color: #007BFF;
    --accent-hover: #0056b3;
    --form-bg: #ffffff;
    --form-shadow: rgba(0,0,0,0.08);
    --input-bg: #fdfdfd;
    --input-bg-focus: #fff;
    --input-border: #ccc;
    --input-valid: #28a745;
    --input-invalid: #d9534f;
    --input-invalid-bg: #fdf2f2;
    --focus-shadow: rgba(0,123,255,0.2);
    --warn-color: #f0ad4e;
    --error-bg: #f8d7da;
    --error-text: #721c24;
    --error-border: #f5c6cb;
    --info-bg: #d4edda;
    --info-text: #155724;
    --info-border: #c3e6cb;
}

[data-theme="dark"] {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --primary-color: var(--primary-color-p3, #0d6efd);
    --primary-hover: oklch(from var(--primary-color) calc(l * 1.1) c h);
    --secondary-color: #aaa;
    --header-bg: #1e1e1e;
    --footer-bg: #111111;
    --footer-text: #e0e0e0;
    --text-light: #aaa;
    --text-label: #f0f0f0;
    --accent-color: #0084ff;
    --accent-hover: #0056b3;
    --form-bg: #1e1e1e;
    --form-shadow: rgba(255,255,255,0.08);
    --input-bg: #2a2a2a;
    --input-bg-focus: #333;
    --input-border: #555;
    --input-valid: #31a44a;
    --input-invalid: #e57373;
    --input-invalid-bg: #3f2f2f;
    --focus-shadow: rgba(0,132,255,0.2);
    --error-bg: #4e2a2c;
    --error-text: #f5c6cb;
    --error-border: #721c24;
    --info-bg: #2a4a32;
    --info-text: #c3e6cb;
    --info-border: #155724;
}

[data-theme="sepia"] {
    --bg-color: #f4f0e8;
    --text-color: #5b4636;
    --text-light: #7a5c48;
    --text-label: #3e3024;
    --primary-color: #005a9c;
    --primary-hover: oklch(from var(--primary-color) calc(l * 0.9) c h);
    --secondary-color: #6c757d;
    --header-bg: #efe8d5;
    --footer-bg: #3e3024;
    --footer-text: #f4f0e8;
    --form-bg: #fdfaf5;
    --form-shadow: rgba(91, 70, 54, 0.1);
    --input-bg: #fdfaf5;
    --input-bg-focus: #fff;
    --input-border: #d0c5b8;
    --input-valid: #28a745;
    --input-invalid: #d9534f;
    --input-invalid-bg: #fdf2f2;
    --focus-shadow: rgba(0, 90, 156, 0.2);
    --warn-color: #f0ad4e;
    --error-bg: #f8d7da;
    --error-text: #721c24;
    --error-border: #f5c6cb;
    --info-bg: #d4edda;
    --info-text: #155724;
    --info-border: #c3e6cb;
}

#theme-picker-btn {
    display: none;
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    font-size: 1.4rem;
    font-weight: 600;
    background-color: var(--input-bg);
    color: var(--text-label);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
    z-index: 1000;
}
#theme-picker-btn:hover {
    background-color: var(--input-bg-focus);
}

#theme-dialog {
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background: var(--form-bg);
    color: var(--text-color);
    padding: 2em;
    max-width: 400px;
}

#theme-dialog::backdrop {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

#theme-dialog fieldset {
    border: 1px solid var(--input-border);
    margin-bottom: 1.5em;
    border-radius: 4px;
}

#theme-dialog legend {
    font-weight: 700;
    font-size: 1.8rem;
    padding: 0 0.5em;
    color: var(--text-label);
}

#theme-dialog .preset-themes {
    display: flex;
    gap: 1.5em;
    padding: 1em 0;
}

#theme-dialog .custom-controls {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1em;
    align-items: center;
}

#theme-dialog input[type="color"] {
    width: 100%;
    height: 35px;
    padding: 0;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    background: none;
    cursor: pointer;
}

#theme-dialog select {
    width: 100%;
    padding: 0.5em;
    background: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    border-radius: 4px;
    font-size: 1.4rem;
}

#theme-dialog .dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1em;
    margin-top: 1em;
}

#theme-toggle {
    display: none;
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    font-size: 1.4rem;
    font-weight: 600;
    background-color: var(--input-bg);
    color: var(--text-label);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
    z-index: 1000;
}
#theme-toggle:hover {
    background-color: var(--input-bg-focus);
}

html {
    font-size: 62.5%; 
    box-sizing: border-box;
}

*, *::before, *::after {
    box-sizing: inherit;
}

body {
    font-family: var(--font-primary, sans-serif);
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--text-color, #212529);
    background-color: var(--bg-color, #ffffff);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
    transition: background-color 0.2s, color 0.2s;
}

main {
    flex-grow: 1;
    width: 90%; 
    max-width: 960px;
    margin: 2em auto;
    padding: 2em;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary, serif); 
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

h1 { font-size: 4.0rem; } 
h2 { font-size: 3.2rem; }
h3 { font-size: 2.4rem; }

p { margin-bottom: 1.5rem; }

a {
    color: var(--primary-color, #0d6efd);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

a:hover {
    color: var(--primary-hover, #0a58ca);
    text-decoration: underline;
}

img, picture {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

header {
    background-color: var(--header-bg, #f8f9fa);
    padding: 1.5em 2em;
    border-bottom: 1px solid #dee2e6;

    view-transition-name: main-header;
    
    nav ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.5em;
        list-style: none;
        margin: 0;
        padding: 0;

        li a {
            font-family: var(--font-primary, sans-serif);
            font-weight: 700;
            font-size: 1.8rem;
            text-decoration: none;
            color: var(--secondary-color, #6c757d);
            padding: 0.5em;
            display: block;
            
            transition: transform 0.2s ease, color 0.2s ease;

            &:hover {
                color: var(--primary-color, #0d6efd);
                transform: translateY(-2px); 
            }

            i {
                font-style: normal;
                color: var(--primary-color, #0d6efd);
                border-bottom: 3px solid var(--primary-color, #0d6efd);
            }
        }
    }
}
        
footer {
    background-color: var(--footer-bg, #212529);
    color: var(--footer-text, #f8f9fa);
    padding: 2em;
    margin-top: auto; /* Pushes footer to bottom */
    
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 2em;
    
    div a {
        color: var(--footer-text, #f8f9fa);
        margin-left: 1.5em;
        font-weight: 700;
        transition: color 0.2s ease-in-out;
        
        &:hover {
            color: var(--primary-color, #0d6efd);
            text-decoration: underline;
        }
    }
}

form {
    display: grid;
    gap: 2rem;
}

fieldset {
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 2rem;
    display: grid;
    gap: 1.5rem;
}

legend {
    font-size: 2rem;
    font-weight: 700;
    padding: 0 0.5em;
}

fieldset:has(input[required]) legend::after,
fieldset:has(textarea[required]) legend::after {
    content: ' *';
    color: #dc3545;
    font-weight: 700;
}

form label {
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
}

form input[type="text"],
form input[type="email"],
form textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: var(--font-primary, sans-serif);
    font-size: 1.6rem;
}

form textarea {
    min-height: 150px;
    resize: vertical;
}
        
button,
input[type="submit"] {
    background-color: var(--primary-color, #0d6efd);
    color: white;
    border: none;
    padding: 1.2rem 2.4rem;
    font-size: 1.6rem;
    font-weight: 700;
    border-radius: 5px;
    cursor: pointer;
    
    transition: background-color 0.2s ease-in-out, transform 0.2s ease;
}

button:hover,
input[type="submit"]:hover {
    background-color: var(--primary-hover, #0a58ca); 
    transform: scale(1.03); 
}
        
/* Home Page */
main:has(> project-card) {
    display: grid;
    grid-template-columns: 2fr 1fr; /* 2/3 left col, 1/3 right col */
    grid-template-areas:
        "hero    hero"
        "summary right";
    gap: 2rem 3rem;
}

/* First section (Hero: H1 + H2 + Pic) */
main:has(> project-card) > section:nth-of-type(1) {
    grid-area: hero;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 0;
}

/*Moves the <picture> element to the top of the flex container */
main:has(> project-card) > section:nth-of-type(1) picture {
    order: 1; /* Show first */
    margin-bottom: 1em;
}

/* Style the circular profile picture */
main:has(> project-card) > section:nth-of-type(1) picture img {
    border-radius: 50%;
    width: 15rem; 
    height: 15rem;
    object-fit: cover;
    border: 3px solid var(--primary-color, #0d6efd);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Styling for H1 (my name) */
main:has(> project-card) > section:nth-of-type(1) h1 {
    order: 2; 
    text-align: center;
    line-height: 1.3;
    margin-bottom: 0.25em;
    animation: fadeInUp 0.8s ease;
}

/* Styling for H2 ("Software Engineer") */
main:has(> project-card) > section:nth-of-type(1) h2 {
    order: 3; 
    text-align: center;
    font-size: 2.2rem; 
    font-family: var(--font-primary, sans-serif);
    font-weight: 400; 
    color: var(--secondary-color, #6c757d); 
    margin: 0; 
}

/* Second section (Summary) */
main:has(> project-card) > section:nth-of-type(2) {
    grid-area: summary;
    margin-top: 0;
}

/* Third element (Project Card) */
main:has(> project-card) > project-card {
    grid-area: right;
    margin-top: 0;
    align-self: start;
}
    
/* Resume Page */
#resume-frame {
    width: 100%;
    height: 80dvh; 
    border: 1px solid #ccc;
    border-radius: 8px;
}
        
/* Experience Page */
progress {
    width: 100%;
    height: 2.5rem;
    accent-color: var(--primary-color, #0d6efd);
}
        
@scope (project-card) {
    :scope {
        display: block;
        border: 1px solid #dee2e6;
        padding: 2em;
        margin-top: 1.5em;
        border-radius: 8px;
        background-color: var(--header-bg, #f8f9fa);
        transition: box-shadow 0.3s ease, transform 0.3s ease;
    }
    :scope:hover {
        transform: translateY(-5px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    }
    h3 {
        margin-top: 0;
        color: color-mix(in srgb, var(--primary-color, #0d6efd) 75%, var(--text-color, #212529));
    }
}
        
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
        

@media (max-width: 768px) {
    html {
        font-size: 56.25%; /* 1rem = 9px */
    }
    
    main {
        width: 95%;
        padding: 1.5em;
    }
    
    /* Stack navigation on mobile */
    header nav ul {
        flex-direction: column;
        align-items: center;
        gap: 0.5em;
    }
    
    main:has(> project-card) {
        display: block; /* Reverts the 2-column grid to a single column for small screens*/
    }

    /* Stack footer on mobile */
    footer {
        flex-direction: column;
        text-align: center;
        gap: 1.5em;
        
        div {
            display: flex;
            flex-direction: column;
            gap: 1em;
            
            a {
                margin-left: 0;
            }
        }
    }
    
    /* Make profile picture smaller on mobile */
    picture img {
        /* Using max-width instead of fixed width for better responsiveness */
        max-width: 150px;
    }
}
        
@media (max-width: 480px) {
    h1 { font-size: 3.2rem; }
    h2 { font-size: 2.8rem; }
    
    /* Stack form elements on very small screens */
    form {
        display: flex;
        flex-direction: column;
    }
}

#form-page {
    display: grid;
    place-items: center;
    padding: 2rem;
}

#form-page form {
    background: var(--form-bg);
    border-radius: 12px;
    box-shadow: 0 8px 24px var(--form-shadow);
    padding: 2rem 2.5rem;
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

#form-page form > div {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

#form-page label {
    font-weight: 600;
    font-size: 1.4rem; 
    color: var(--text-label);
}

#form-page label[for="name"]::after,
#form-page label[for="email"]::after,
#form-page label[for="comments"]::after {
    content: " (Required)";
    color: var(--input-invalid);
    font-weight: 400;
    font-size: 1.2rem;
    margin-left: 4px;
}

#form-page input[type="text"],
#form-page input[type="email"],
#form-page textarea {
    width: 100%;
    padding: 0.75rem;
    font-size: 1.6rem; 
    font-family: inherit;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background-color: var(--input-bg);
    color: var(--text-color);
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}

#form-page input:invalid:not(:placeholder-shown),
#form-page textarea:invalid:not(:placeholder-shown) {
    border-color: var(--input-invalid);
    background-color: var(--input-invalid-bg);
}

#form-page input:valid:not(:placeholder-shown),
#form-page textarea:valid:not(:placeholder-shown) {
    border-color: var(--input-valid);
}

#form-page input[type="text"]:focus,
#form-page input[type="email"]:focus,
#form-page textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--focus-shadow);
    background-color: var(--input-bg-focus);
}

#form-page textarea {
    resize: vertical;
    min-height: 120px;
}

#form-page .char-counter {
    font-size: 1.2rem; /* 0.8rem -> 1.2rem */
    color: var(--text-light);
    text-align: right;
    margin-top: -0.25rem;
}
#form-page .char-counter .warning {
    color: var(--warn-color);
    font-weight: 600;
}
#form-page .char-counter .error {
    color: var(--input-invalid);
    font-weight: 600;
}

#form-page .flash-error {
    border-color: var(--input-invalid) !important;
    background-color: var(--input-invalid-bg) !important;
    animation: shake 0.3s;
}

@keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
    75% { transform: translateX(-5px); }
    100% { transform: translateX(0); }
}

#form-page button[type="submit"] {
    background-color: var(--accent-color);
    color: white;
    padding: 0.85rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.7rem; 
    font-weight: 600;
    transition: background-color 0.2s;
    align-self: flex-start;
}

#form-page button[type="submit"]:hover {
    background-color: var(--accent-hover);
    transform: none; 
}

#form-page output {
    display: none; 
    font-size: 1.4rem; 
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-top: -0.5rem;
}

#form-page #error-output {
    background-color: var(--error-bg);
    color: var(--error-text);
    border: 1px solid var(--error-border);
}

#form-page #info-output {
    background-color: var(--info-bg);
    color: var(--info-text);
    border: 1px solid var(--info-border);
}

#form-page #error-output ul {
    margin: 0;
    padding-left: 1.25rem;
}

.projects-section {
  margin-top: 2rem;
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}
#form-page #error-output ul {
    margin: 0;
    padding-left: 1.25rem;
}