@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@700;800&display=swap');

/* --- Global Theme Variable Tokens --- */
:root {
    /* Light Mode Config (Palette 1) */
    --bg-canvas: #eeeeee;
    --bg-surface: #ffffff;
    --text-main: #2b2b28;
    --text-muted: #666666;
    --primary-accent: #71a0a5;
    --secondary-accent: #845464;
    --border-color: #acc6aa;
    --input-bg: #f9f9f9;
    --shadow: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
    /* Dark Mode Switch (Palette 2) */
    --bg-canvas: #1c121e;
    --bg-surface: #2d1f30;
    --text-main: #f3cba5;
    --text-muted: #d5b492;
    --primary-accent: #975a5e;
    --secondary-accent: #f3cba5;
    --border-color: #49334e;
    --input-bg: #221625;
    --shadow: rgba(0, 0, 0, 0.4);
}

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

body {
    background-color: var(--bg-canvas);
    color: var(--text-main);
    font-family: 'Inter', system-ui, sans-serif;
    transition: background-color 0.4s ease, color 0.4s ease;
    line-height: 1.6;
}

/* --- Header and Logo Panel --- */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Ensure header navigation buttons match theme toggle height & styling */
.header-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-nav .nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px var(--shadow);
    height: 38px; /* Matching height */
}

.header-nav .nav-btn:hover {
    transform: translateY(-1px);
    border-color: var(--primary-accent);
}

.theme-toggle-btn {
    height: 38px; /* Standardize toggle button height */
}

.nav-btn {
    text-decoration: none;
    padding: 8px 16px;
    font-size: 0.9rem;
    width: auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--primary-accent);
    font-weight: 300;
}

.theme-toggle-btn {
    background-color: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px var(--shadow);
}

.theme-toggle-btn:hover {
    transform: translateY(-1px);
    border-color: var(--primary-accent);
}

/* --- Form Container and Card --- */
.form-container {
    max-width: 750px;
    margin: 40px auto 80px auto;
    padding: 0 20px;
}

.landing-main {
    max-width: 1000px;
}

.onboarding-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 10px 30px var(--shadow);
    transition: background-color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.form-intro h1,
.form-section h2,
.section-title,
.logo {
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}

.form-intro {
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.form-intro h1 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.form-intro p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* --- Hero Section Styles --- */
.hero-section {
    text-align: center;
    margin-bottom: 60px;
    border-bottom: none;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 15px;
}

.hero-subtitle {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 30px auto;
}

/* Hero CTA Banner Tweaks */
.cta-btn {
    margin-top: 20px;
    max-width: 650px;
    text-align: center;
    line-height: 1.5;
    border-radius: 12px;
    background-color: var(--primary-accent);
    color: #ffffff;
    box-shadow: 0 8px 24px var(--shadow);
}

[data-theme="dark"] .hero-section .cta-btn {
    color: #1c121e;
    background-color: var(--text-main);
}

[data-theme="dark"] .hero-section .cta-btn:hover {
    background-color: var(--primary-accent);
    color: #ffffff;
}

/* --- Portfolio & Project Grid --- */
.portfolio-section {
    margin-bottom: 60px;
}

.section-title {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 30px;
    border-bottom: 2px dashed var(--border-color);
    padding-bottom: 10px;
    color: var(--primary-accent);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px var(--shadow);
}

.card-window-header {
    background: var(--input-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 15px;
    font-size: 0.8rem;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
    font-family: monospace;
}

.card-body {
    padding: 24px;
}

.preview-frame {
    width: 100%;
    height: 180px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

.card-title {
    margin-bottom: 10px;
    color: var(--text-main);
    font-size: 1.3rem;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* --- Operator Bio Card --- */
.operator-profile {
    margin-top: 80px;
    padding: 30px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    gap: 25px;
    align-items: center;
    flex-wrap: wrap;
    box-shadow: 0 4px 12px var(--shadow);
}

.avatar-frame {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    border: 2px solid var(--primary-accent);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.operator-info {
    flex: 1;
    min-width: 250px;
}

.operator-title {
    margin: 0 0 8px 0;
    color: var(--text-main);
    font-size: 1.2rem;
}

.operator-bio {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* --- Footer --- */
.app-footer {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
    margin-top: 60px;
    font-family: monospace;
}

/* --- Form Sections & Input Groups --- */
.form-section {
    margin-bottom: 35px;
}

.form-section h2 {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--primary-accent);
}

.input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}

.input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
}

/* Universal styles for Inputs, Textareas, and Dropdowns */
.input-group input,
.input-group textarea,
.input-group select {
    background-color: var(--input-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s ease;
}

.input-group textarea {
    resize: vertical;
}

/* Focus Ring */
.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px var(--border-color);
}

/* Accessibility Focus Ring */
button:focus-visible,
a:focus-visible {
    outline: 3px solid var(--primary-accent);
    outline-offset: 2px;
}

/* --- Submit Button --- */
.form-actions {
    margin-top: 20px;
}

.submit-btn {
    background-color: var(--primary-accent);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 700;
    width: 100%;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px var(--shadow);
}

.submit-btn:hover {
    background-color: var(--secondary-accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow);
}

[data-theme="dark"] .submit-btn:hover {
    color: #25161b;
}

.submit-btn:active {
    transform: translateY(0);
}