/* ==========================================================================
   Minimalist Editorial Portfolio
   Typography: Satoshi & Cormorant Garamond
   ========================================================================== */

:root {
    --font-sans: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --bg-color: #ffffff;
    --text-primary: #111111;
    --text-secondary: #555555;
    --text-muted: #888888;
    --border-subtle: #eaeaea;
    --transition-fast: all 0.2s ease-out;
}

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

html, body {
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Centered Viewport Frame */
.viewport-frame {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem 1.5rem;
    position: relative;
}

.center-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 720px;
    width: 100%;
}

/* ==========================================================================
   Bio Paragraph: 22px, Satoshi, Bolded Keywords, Satoshi Bold Italic Name
   ========================================================================== */

.bio-paragraph {
    font-family: var(--font-sans);
    font-size: 22px;
    font-weight: 400;
    line-height: 1.55;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    margin-bottom: 2.2rem;
    text-align: center;
}

.name-highlight {
    font-family: var(--font-sans);
    font-weight: 700;
    font-style: italic;
    color: var(--text-primary);
}

.bio-paragraph strong {
    font-weight: 700;
    color: var(--text-primary);
}

/* ==========================================================================
   Links Row: Lowercase, Semibold, 22px, NO Underlines, Pointer Cursor
   ========================================================================== */

.links-row {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 1.4rem;
    user-select: none;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none; /* NO underlines */
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 22px; /* 22px */
    font-weight: 600; /* Semibold */
    text-transform: lowercase; /* Lowercase */
    background: none;
    border: none;
    cursor: pointer; /* Link finger */
    padding: 0.2rem 0.3rem;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    display: inline-block;
}

.nav-link:hover,
.nav-link:focus-visible {
    opacity: 0.55;
    transform: translateY(-1px);
    outline: none;
    text-decoration: none;
}

.link-separator {
    color: var(--text-muted);
    font-style: normal;
    font-size: 18px;
    user-select: none;
}

/* ==========================================================================
   Certificates Dropdown Modal
   ========================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 999999;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    padding: 1.5rem;
}

.modal-overlay.open {
    display: flex !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
}

.modal-card {
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.03);
    width: 100%;
    max-width: 520px;
    padding: 2.2rem 2.4rem;
    transform: scale(0.96) translateY(8px);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.open .modal-card {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.8rem;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 0.8rem;
}

.modal-title {
    font-family: var(--font-serif);
    font-size: 1.9rem;
    font-weight: 600;
    font-style: italic;
    text-transform: lowercase;
    color: var(--text-primary);
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 1.8rem;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

.cert-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.cert-item {
    width: 100%;
}

.cert-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 500;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid transparent;
    transition: var(--transition-fast);
    cursor: pointer;
}

.cert-link:hover {
    background: #f8f8f8;
    border-color: var(--border-subtle);
    padding-left: 1.25rem;
}

.cert-arrow {
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.cert-link:hover .cert-arrow {
    transform: translate(2px, -2px);
    color: var(--text-primary);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (max-width: 640px) {
    .bio-paragraph {
        font-size: 19px;
        margin-bottom: 1.8rem;
    }

    .nav-link {
        font-size: 19px;
    }

    .links-row {
        gap: 0.9rem;
    }

    .modal-card {
        padding: 1.5rem;
    }

    .cert-link {
        font-size: 0.95rem;
    }
}