/* ==========================================================================
   Material Design 3 Theme System (Baseline Purple)
   ========================================================================== */
@font-face {
    font-family: 'Google Sans';
    src: url('./assets/fonts/GoogleSans-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Google Sans';
    src: url('./assets/fonts/GoogleSans-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Google Sans';
    src: url('./assets/fonts/GoogleSans-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

:root {
    /* Baseline Brand Typefaces */
    --md-ref-typeface-brand: 'Google Sans', sans-serif;
    --md-ref-typeface-plain: 'Google Sans', sans-serif;

    /* Semantic M3 Design Tokens - Dark Theme Default (Green) */
    --md-sys-color-primary: #9cd67d;
    --md-sys-color-on-primary: #0c3900;
    --md-sys-color-primary-container: #1f5107;
    --md-sys-color-on-primary-container: #b8f397;
    
    --md-sys-color-secondary: #bccbb0;
    --md-sys-color-on-secondary: #273420;
    --md-sys-color-secondary-container: #3d4b35;
    --md-sys-color-on-secondary-container: #d8e7cb;
    
    --md-sys-color-tertiary: #a0cfcf;
    --md-sys-color-on-tertiary: #003737;
    --md-sys-color-tertiary-container: #1e4e4e;
    --md-sys-color-on-tertiary-container: #bbecec;
    
    --md-sys-color-error: #ffb4ab;
    --md-sys-color-on-error: #690005;
    --md-sys-color-error-container: #93000a;
    --md-sys-color-on-error-container: #ffdad6;
    
    --md-sys-color-background: #1a1c18;
    --md-sys-color-on-background: #e3e3dc;
    
    --md-sys-color-surface: #1a1c18;
    --md-sys-color-on-surface: #e3e3dc;
    --md-sys-color-surface-variant: #43483e;
    --md-sys-color-on-surface-variant: #c3c8bb;
    
    --md-sys-color-outline: #8e9286;
    --md-sys-color-outline-variant: #43483e;
    
    /* M3 Surface Containers */
    --md-sys-color-surface-container-lowest: #0f0d13;
    --md-sys-color-surface-container-low: #1d1b20;
    --md-sys-color-surface-container: #211f26;
    --md-sys-color-surface-container-high: #2b2930;
    --md-sys-color-surface-container-highest: #36343b;

    /* Shape Scale Tokens */
    --md-sys-shape-corner-none: 0px;
    --md-sys-shape-corner-extra-small: 4px;
    --md-sys-shape-corner-small: 8px;
    --md-sys-shape-corner-medium: 12px;
    --md-sys-shape-corner-large: 16px;
    --md-sys-shape-corner-extra-large: 28px;
    --md-sys-shape-corner-full: 9999px;

    /* Semantic mappings */
    --bg-main: var(--md-sys-color-background);
    --border-color: var(--md-sys-color-outline-variant);
    --text-primary: var(--md-sys-color-on-background);
    --text-secondary: var(--md-sys-color-on-surface-variant);
    
    --radius-sm: var(--md-sys-shape-corner-small);
    --radius-md: var(--md-sys-shape-corner-medium);
    --radius-lg: var(--md-sys-shape-corner-extra-large);
    --radius-full: var(--md-sys-shape-corner-full);
    
    --transition-fast: 0.15s cubic-bezier(0.2, 0, 0, 1);
    --transition-normal: 0.25s cubic-bezier(0.2, 0, 0, 1);
}

/* Light Theme Variables Override */
html.light-theme, .light-theme {
    --md-sys-color-primary: #386a20;
    --md-sys-color-on-primary: #ffffff;
    --md-sys-color-primary-container: #b8f397;
    --md-sys-color-on-primary-container: #042100;
    
    --md-sys-color-secondary: #55624c;
    --md-sys-color-on-secondary: #ffffff;
    --md-sys-color-secondary-container: #d8e7cb;
    --md-sys-color-on-secondary-container: #131f0d;
    
    --md-sys-color-tertiary: #386666;
    --md-sys-color-on-tertiary: #ffffff;
    --md-sys-color-tertiary-container: #bbecec;
    --md-sys-color-on-tertiary-container: #002020;

    --md-sys-color-error: #ba1a1a;
    --md-sys-color-on-error: #ffffff;
    --md-sys-color-error-container: #ffdad6;
    --md-sys-color-on-error-container: #410002;
    
    --md-sys-color-background: #fdfdf5;
    --md-sys-color-on-background: #1a1c18;
    
    --md-sys-color-surface: #fdfdf5;
    --md-sys-color-on-surface: #1a1c18;
    --md-sys-color-surface-variant: #dfe4d6;
    --md-sys-color-on-surface-variant: #43483e;
    
    --md-sys-color-outline: #74796d;
    --md-sys-color-outline-variant: #c3c8bb;
    
    --md-sys-color-surface-container-lowest: #ffffff;
    --md-sys-color-surface-container-low: #f3f5ed;
    --md-sys-color-surface-container: #edf0e7;
    --md-sys-color-surface-container-high: #e7eae1;
    --md-sys-color-surface-container-highest: #e1e5db;
}


/* Specific MWC component overrides */
md-filled-button, md-outlined-button, md-filled-tonal-button, md-text-button {
    --md-filled-button-container-shape: var(--radius-full);
    --md-outlined-button-container-shape: var(--radius-full);
    --md-filled-tonal-button-container-shape: var(--radius-full);
    --md-text-button-container-shape: var(--radius-full);
    
    --md-filled-button-label-text-font: var(--md-ref-typeface-brand);
    --md-outlined-button-label-text-font: var(--md-ref-typeface-brand);
    --md-text-button-label-text-font: var(--md-ref-typeface-brand);
    
    --md-filled-button-leading-space: 32px;
    --md-filled-button-trailing-space: 32px;
    --md-outlined-button-leading-space: 32px;
    --md-outlined-button-trailing-space: 32px;
    --md-filled-tonal-button-leading-space: 32px;
    --md-filled-tonal-button-trailing-space: 32px;
}

.btn-label {
    padding: 0 16px;
}

md-outlined-text-field {
    --md-outlined-text-field-container-shape: var(--radius-sm);
    --md-outlined-text-field-label-text-font: var(--md-ref-typeface-plain);
    --md-outlined-text-field-input-text-font: var(--md-ref-typeface-plain);
    width: 100%;
}

md-assist-chip {
    --md-assist-chip-container-shape: var(--radius-sm);
    --md-assist-chip-label-text-font: var(--md-ref-typeface-plain);
    --md-assist-chip-outline-color: var(--md-sys-color-outline-variant);
    --md-assist-chip-label-text-color: var(--md-sys-color-on-surface);
}

md-dialog {
    --md-dialog-container-shape: var(--radius-lg);
    --md-dialog-container-color: var(--md-sys-color-surface-container-high);
    --md-dialog-headline-font: var(--md-ref-typeface-brand);
    --md-dialog-supporting-text-font: var(--md-ref-typeface-plain);
    max-width: 640px;
    width: 90%;
}

md-tabs {
    --md-primary-tab-container-color: transparent;
    --md-primary-tab-container-shape: var(--radius-full);
}

md-primary-tab {
    --md-primary-tab-label-text-font: var(--md-ref-typeface-brand);
    font-size: 0.9rem;
    font-weight: 500;
    min-width: 120px;
}

/* ==========================================================================
   CSS Reset
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--md-ref-typeface-plain);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* ==========================================================================
   M3 Custom Typography Scale (Regular Weights for Displays/Headlines/Titles)
   ========================================================================== */
.md-typescale-display-large {
    font-family: var(--md-ref-typeface-brand);
    font-size: 3.5rem;          /* 57px */
    font-weight: 400;           /* Regular - Strict M3 */
    line-height: 4rem;
    letter-spacing: -0.25px;
}

.md-typescale-headline-medium {
    font-family: var(--md-ref-typeface-brand);
    font-size: 1.75rem;         /* 28px */
    font-weight: 400;           /* Regular - Strict M3 */
    line-height: 2.25rem;
    letter-spacing: 0px;
}

.md-typescale-title-large {
    font-family: var(--md-ref-typeface-brand);
    font-size: 1.375rem;        /* 22px */
    font-weight: 400;           /* Regular - Strict M3 */
    line-height: 1.75rem;
    letter-spacing: 0px;
}

.md-typescale-body-large {
    font-family: var(--md-ref-typeface-plain);
    font-size: 1rem;            /* 16px */
    font-weight: 400;
    line-height: 1.5rem;
    letter-spacing: 0.5px;
}

.md-typescale-body-medium {
    font-family: var(--md-ref-typeface-plain);
    font-size: 0.875rem;        /* 14px */
    font-weight: 400;
    line-height: 1.25rem;
    letter-spacing: 0.25px;
}

.md-typescale-label-large {
    font-family: var(--md-ref-typeface-plain);
    font-size: 0.875rem;        /* 14px */
    font-weight: 500;
    line-height: 1.25rem;
    letter-spacing: 0.1px;
}

.md-typescale-label-medium {
    font-family: var(--md-ref-typeface-plain);
    font-size: 0.75rem;         /* 12px */
    font-weight: 500;
    line-height: 1rem;
    letter-spacing: 0.5px;
}

.md-typescale-body-small {
    font-family: var(--md-ref-typeface-plain);
    font-size: 0.75rem;         /* 12px */
    font-weight: 400;
    line-height: 1rem;
    letter-spacing: 0.4px;
}

/* ==========================================================================
   Layout, Sections, and Spacing
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 120px 0;
    position: relative;
    border-bottom: none; /* Removed legacy borders */
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px auto;
}

.section-title {
    margin-bottom: 16px;
    color: var(--md-sys-color-primary);
}

.section-desc {
    color: var(--text-secondary);
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background-color: var(--md-sys-color-surface-container);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: none; /* Removed legacy border */
    z-index: 100;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    gap: 8px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-sm);
}

.logo:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 4px;
}

.logo-icon {
    color: var(--md-sys-color-primary);
    font-size: 24px;
}

.main-nav {
    display: flex;
    align-items: center;
    outline: none;
}

#navTabs {
    outline: none;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-menu-btn {
    display: none;
}

/* ==========================================================================
   Hero Section (Tonal Background Setup)
   ========================================================================== */
.hero-section {
    padding-top: 160px;
    padding-bottom: 96px;
    display: flex;
    align-items: center;
    min-height: 85vh;
    background-color: var(--md-sys-color-background);
}

.hero-container {
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    border-radius: var(--radius-full);
    margin-bottom: 32px;
}

.hero-badge md-icon {
    font-size: 24px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-subtitle {
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto 48px auto;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    align-items: center; /* Prevent compression / stretching */
    gap: 16px;
    margin-bottom: 64px;
}

.hero-stats {
    display: inline-flex;
    align-items: center;
    background-color: var(--md-sys-color-surface-container-low);
    border-radius: var(--radius-sm);
    padding: 16px 40px;
    border: none; /* Removed legacy border */
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 24px;
}

.stat-number {
    color: var(--md-sys-color-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background-color: var(--border-color);
}

/* ==========================================================================
   Apps Showcase (Borderless M3 Filled Cards)
   ========================================================================== */
.apps-section {
    background-color: var(--md-sys-color-surface-container-lowest);
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.app-card {
    background-color: var(--md-sys-color-surface-container);
    border-radius: var(--radius-lg); /* 28px corner XL */
    border: none; /* No border for M3 Filled Cards */
    padding: 32px;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-fast);
}

.app-card:hover {
    background-color: var(--md-sys-color-surface-container-high);
}

.app-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.app-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
}

.app-icon md-icon {
    font-size: 28px;
}

.app-icon-purple {
    background-color: rgba(208, 188, 255, 0.15);
    color: rgb(208, 188, 255);
}

.app-icon-blue {
    background-color: rgba(168, 199, 250, 0.15);
    color: var(--md-sys-color-primary);
}

.app-icon-teal {
    background-color: rgba(239, 184, 200, 0.15);
    color: rgb(239, 184, 200);
}

.app-icon-green {
    background-color: rgba(126, 211, 47, 0.15);
    color: rgb(126, 211, 47);
}

.app-status {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 6px 12px;
    border-radius: var(--radius-full);
}

.app-status.active-dev {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    border: none;
}

.app-status.planning {
    background-color: var(--md-sys-color-surface-container-low);
    color: var(--text-secondary);
}

.app-title {
    margin-bottom: 16px;
}

.app-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.app-features {
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.app-features li {
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
}

.app-features li::before {
    content: "done";
    font-family: 'Material Symbols Outlined';
    position: absolute;
    left: 0;
    color: var(--md-sys-color-primary);
    font-size: 16px;
    font-weight: bold;
}

.app-card-footer {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    border-top: none;
    padding-top: 24px;
}

.app-tech-chips {
    --md-chip-set-spacing: 6px;
}

.app-card-footer md-outlined-button {
    align-self: flex-start; /* Stop stretching button size */
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-section {
    background-color: var(--md-sys-color-surface-container-low);
}

.about-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 64px;
    align-items: center;
}

.about-content {
    display: flex;
    flex-direction: column;
}

.about-paragraph {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.skills-chip-set {
    margin-top: 24px;
}

/* Visual Code Panel (Borderless card) */
.about-visual {
    width: 100%;
}

.visual-card {
    background-color: var(--md-sys-color-surface-container-lowest);
    border-radius: var(--radius-md);
    border: none; /* Removed border */
    overflow: hidden;
}

.card-dots {
    display: flex;
    padding: 16px;
    gap: 6px;
    background-color: var(--md-sys-color-surface-container-low);
    border-bottom: none; /* Removed border */
}

.card-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.card-dots .red { background-color: #ff5f56; }
.card-dots .yellow { background-color: #ffbd2e; }
.card-dots .green { background-color: #27c93f; }

.code-terminal {
    padding: 24px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.85rem;
    line-height: 1.5;
}

.code-terminal pre {
    margin: 0;
}

.code-terminal .keyword { color: #f472b6; }
.code-terminal .string { color: #34d399; }
.code-terminal .boolean { color: #fb7185; }
.code-terminal .comment { color: #6b7280; }

/* ==========================================================================
   Contact Section (Spacious layout, Filled cards)
   ========================================================================== */
.contact-section {
    background-color: var(--md-sys-color-surface-container);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-intro {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.info-item {
    display: flex;
    gap: 24px;
    align-items: center;
}

.info-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    flex-shrink: 0;
}

.info-icon md-icon {
    font-size: 24px;
}

.info-text {
    display: flex;
    flex-direction: column;
}

.info-label {
    color: var(--md-sys-color-primary);
    font-weight: 500;
}

.info-link, .info-value {
    font-weight: 700;
    margin-top: 2px;
}

.info-link:hover {
    color: var(--md-sys-color-primary);
}

/* Contact Form Card (M3 Filled Card) */
.contact-form-card {
    background-color: var(--md-sys-color-surface-container-high);
    border-radius: var(--radius-lg); /* 28px XL corners */
    border: none; /* Removed border */
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-form md-filled-button {
    align-self: flex-start; /* Stop stretching button size */
}

.form-status-msg {
    font-size: 0.9rem;
    font-weight: 500;
    display: none;
    margin-top: 8px;
}

.form-status-msg.success {
    color: #81c784;
    display: block;
}

.light-theme .form-status-msg.success {
    color: var(--md-sys-color-primary);
}

.form-status-msg.error {
    color: #e57373;
    display: block;
}

.light-theme .form-status-msg.error {
    color: var(--md-sys-color-error);
}

/* ==========================================================================
   Footer (Flat Layout)
   ========================================================================== */
.site-footer {
    background-color: var(--md-sys-color-surface-container-lowest);
    color: var(--text-secondary);
    border-top: none; /* Removed border */
    padding: 80px 0 40px 0;
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--text-primary);
    gap: 8px;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.95rem;
}

.footer-address {
    font-weight: 700;
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.footer-copyright {
    color: var(--md-sys-color-outline);
    border-top: none;
    padding-top: 24px;
    width: 100%;
    margin-top: 8px;
}

/* ==========================================================================
   Material Dialog Styles Overrides
   ========================================================================== */
md-dialog [slot="headline"] {
    font-weight: 500;
    color: var(--md-sys-color-primary);
}

md-dialog [slot="content"] {
    color: var(--text-secondary);
}

md-dialog [slot="content"] h3 {
    color: var(--text-primary);
    margin: 24px 0 12px 0;
    font-weight: 500;
    font-size: 1.2rem;
}

md-dialog [slot="content"] h3:first-of-type {
    margin-top: 0;
}

md-dialog [slot="content"] p {
    margin-bottom: 16px;
}

md-dialog [slot="content"] ul {
    margin-bottom: 16px;
    padding-left: 24px;
    list-style-type: disc;
}

md-dialog [slot="content"] li {
    margin-bottom: 8px;
}

/* ==========================================================================
   Responsive Layout Details
   ========================================================================== */
@media (max-width: 968px) {
    .about-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-visual {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .site-header {
        background-color: var(--bg-main);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .main-nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--bg-main);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        transform: translateX(100%);
        transition: transform var(--transition-normal);
        border-top: none;
        padding: 40px;
    }
    
    .main-nav.open {
        transform: translateX(0);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-ctas {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    .hero-ctas md-filled-button, .hero-ctas md-outlined-button {
        width: 100%;
        max-width: 320px;
    }
    
    .hero-stats {
        flex-direction: column;
        width: 100%;
        gap: 16px;
        padding: 24px;
    }
    
    .stat-divider {
        width: 80%;
        height: 1px;
    }
}