/* =============================================
   MAIN.CSS - Design System & Base Styles
   ============================================= */

:root {
    /* Color Palette - Dark Mode */
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    --color-primary-glow: rgba(99, 102, 241, 0.2);

    /* Neutral Palette */
    --color-bg-dark: #0a0a0c;
    --color-bg-base: #0f0f12;
    --color-bg-card: #18181b;
    --color-bg-elevated: #1f1f23;
    --color-bg-hover: #27272a;

    /* Text Colors */
    --color-text-primary: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    --color-text-accent: var(--color-primary-light);

    /* Border & Lines */
    --color-border: #27272a;
    --color-border-subtle: #1f1f23;
    --color-divider: rgba(255, 255, 255, 0.06);

    /* Status Colors */
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-display: clamp(2.5rem, 6vw, 5rem);

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-primary-glow);

    /* Z-Index */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 500;
    --z-modal: 1000;
    --z-loader: 9999;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-bg-dark);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

p {
    color: var(--color-text-secondary);
    line-height: 1.625;
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color 150ms ease;
}

a:hover {
    color: var(--color-primary);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

ul,
ol {
    list-style: none;
}

::selection {
    background: var(--color-primary);
    color: white;
}

/* Layout */
.app-container {
    position: relative;
    min-height: 100vh;
}

.screen {
    display: none;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}

.screen.active {
    display: block;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

/* Page Content */
.page-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-20) var(--space-8) var(--space-24);
}

/* Section Styles */
.section {
    margin-bottom: var(--space-16);
}

.section-header {
    margin-bottom: var(--space-10);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    max-width: 600px;
}

/* Utility */
.highlight {
    color: var(--color-primary-light);
}

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

/* Placeholder Markers */
.placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
}

.placeholder__icon {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.6;
}

.placeholder__label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--space-1);
}

/* Footer */
.site-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-4) var(--space-8);
    background: linear-gradient(to top, var(--color-bg-dark) 0%, transparent 100%);
    z-index: var(--z-fixed);
    opacity: 0;
    pointer-events: none;
    transition: opacity 300ms ease;
}

.site-footer.visible {
    opacity: 1;
    pointer-events: auto;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-base);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
}

.timeline-header {
    display: flex !important;
    align-items: center !important;
    gap: 16px !important;
}

/* Wrapper logo */
.company-logo {
    width: 48px !important;
    height: 48px !important;
    background-color: #ffffff !important;
    border-radius: 8px !important;

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

    flex-shrink: 0 !important;

    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15) !important;
}

/* Logo image */
.company-logo img {
    width: 40px !important;
    height: 40px !important;
    aspect-ratio: 1 / 1 !important;
    object-fit: contain !important;
}

.cert-back {
    padding: 16px;
    /* jarak samping & atas bawah */
}

.cert-image-wrapper {
    /* background-color: #ffffff; */
    padding: 16px;
    border-radius: 14px;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.12);
}

.cert-image-wrapper img {
    width: 250px;
    height: auto;
    object-fit: contain;
    /* tidak terpotong */
    border-radius: 10px;
    display: block;
}

.github-activity-section {
    background-color: #0d1117;
    /* GitHub dark background */
    padding: 24px;
    border-radius: 14px;
}

.github-activity-section h3 {
    color: #e6edf3;
    margin-bottom: 16px;
}

/* Card */
.github-card {
    background-color: #161b22;
    border-radius: 12px;
    padding: 16px;
    border: 1px solid #30363d;
}

/* Header */
.github-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.github-user {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #e6edf3;
}

.github-user svg {
    fill: #e6edf3;
}

.github-link {
    color: #2f81f7;
    font-size: 0.85rem;
    text-decoration: none;
}

.github-link:hover {
    text-decoration: underline;
}

/* Graph container */
.github-graph-container {
    background-color: #0d1117;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #30363d;
    overflow-x: auto;
}

/* Graph image */
.github-graph-img {
    width: 100%;
    height: auto;
}

/* Stats */
.github-stats {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.gh-stat {
    background-color: #0d1117;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid #30363d;
    color: #c9d1d9;
    font-size: 0.8rem;
}

.gh-stat span {
    color: #e6edf3;
    font-weight: 600;
}

.github-card:hover {
    border-color: #2f81f7;
    transition: 0.2s ease;
}