/* ==========================================================
   SI Learning Design — Phase 3 Styles
   Covers: portfolio grid, project modal, approach cards,
           tools grid, awards, education timeline
   ========================================================== */

/* ----------------------------------------------------------
   Shared section layout
   ---------------------------------------------------------- */
.si-scope .si-portfolio-grid-section__inner,
.si-scope .si-approach-cards__inner,
.si-scope .si-tools-grid__inner,
.si-scope .si-awards__inner,
.si-scope .si-education-timeline__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

.si-scope .si-portfolio-grid-section__label,
.si-scope .si-approach-cards__label,
.si-scope .si-tools-grid__label,
.si-scope .si-awards__label,
.si-scope .si-education-timeline__label {
    font-family: var(--si-font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--si-accent-warm);
    margin: 0 0 0.75rem;
}

.si-scope .si-portfolio-grid-section__heading,
.si-scope .si-approach-cards__heading,
.si-scope .si-tools-grid__heading,
.si-scope .si-awards__heading,
.si-scope .si-education-timeline__heading {
    font-family: var(--si-font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    color: var(--si-text-primary);
    margin: 0 0 3rem;
    line-height: 1.15;
}

/* ----------------------------------------------------------
   Section backgrounds (alternating)
   ---------------------------------------------------------- */
.si-scope .si-portfolio-grid-section {
    background: var(--si-bg-deep);
}

.si-scope .si-approach-cards {
    background: var(--si-bg-surface);
}

.si-scope .si-tools-grid {
    background: var(--si-bg-deep);
}

.si-scope .si-awards {
    background: var(--si-bg-surface);
}

.si-scope .si-education-timeline {
    background: var(--si-bg-deep);
}

/* ----------------------------------------------------------
   Portfolio Filter Pills
   ---------------------------------------------------------- */
.si-scope .si-portfolio-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
}

.si-scope .si-portfolio-filter__pill {
    font-family: var(--si-font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--si-text-secondary);
    background: transparent;
    border: 1px solid var(--si-border);
    border-radius: 999px;
    padding: 0.4em 1.1em;
    cursor: pointer;
    transition:
        color var(--si-dur-fast) var(--si-ease-out),
        border-color var(--si-dur-fast) var(--si-ease-out),
        background var(--si-dur-fast) var(--si-ease-out);
}

.si-scope .si-portfolio-filter__pill:hover {
    color: var(--si-accent-warm);
    border-color: var(--si-accent-warm);
}

.si-scope .si-portfolio-filter__pill--active,
.si-scope .si-portfolio-filter__pill[aria-pressed="true"] {
    color: #0D0D0F;
    background: var(--si-accent-warm);
    border-color: var(--si-accent-warm);
}

/* ----------------------------------------------------------
   Portfolio Grid
   ---------------------------------------------------------- */
.si-scope .si-portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.si-scope .si-portfolio-grid__empty {
    color: var(--si-text-secondary);
    padding: 3rem 0;
    text-align: center;
}

/* ----------------------------------------------------------
   Project Cards
   ---------------------------------------------------------- */
.si-scope .si-project-card {
    background: var(--si-bg-surface);
    border: 1px solid var(--si-border);
    border-radius: var(--si-radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition:
        transform var(--si-dur-med) var(--si-ease-out),
        border-color var(--si-dur-med) var(--si-ease-out),
        box-shadow var(--si-dur-med) var(--si-ease-out);
}

.si-scope .si-project-card:hover,
.si-scope .si-project-card:focus-visible {
    transform: translateY(-4px);
    border-color: rgba(212, 168, 83, 0.4);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    outline: none;
}

.si-scope .si-project-card:focus-visible {
    outline: 2px solid var(--si-accent-warm);
    outline-offset: 2px;
}

/* Card thumbnail */
.si-scope .si-project-card__thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--si-bg-elevated);
}

.si-scope .si-project-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--si-dur-slow) var(--si-ease-out);
}

.si-scope .si-project-card:hover .si-project-card__img {
    transform: scale(1.05);
}

.si-scope .si-project-card__thumb-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: var(--si-text-dim);
}

/* Overlay on hover */
.si-scope .si-project-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        transparent 40%,
        rgba(13, 13, 15, 0.85) 100%
    );
    display: flex;
    align-items: flex-end;
    padding: 1.25rem;
    opacity: 0;
    transition: opacity var(--si-dur-med) var(--si-ease-out);
}

.si-scope .si-project-card:hover .si-project-card__overlay,
.si-scope .si-project-card:focus-visible .si-project-card__overlay {
    opacity: 1;
}

.si-scope .si-project-card__cta {
    font-family: var(--si-font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--si-accent-warm);
}

/* Card body */
.si-scope .si-project-card__body {
    padding: 1.25rem 1.5rem 1.5rem;
}

.si-scope .si-project-card__title {
    font-family: var(--si-font-display);
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--si-text-primary);
    margin: 0 0 0.5rem;
    line-height: 1.3;
}

.si-scope .si-project-card__excerpt {
    font-size: 0.875rem;
    color: var(--si-text-secondary);
    line-height: 1.6;
    margin: 0 0 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.si-scope .si-project-card__tools {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.si-scope .si-project-card__tool-badge {
    font-family: var(--si-font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--si-text-dim);
    background: var(--si-bg-elevated);
    border: 1px solid var(--si-border);
    border-radius: 4px;
    padding: 0.2em 0.6em;
}

/* Filtered/hidden state */
.si-scope .si-project-card.is-hidden {
    display: none;
}

/* ----------------------------------------------------------
   Project Modal Shell
   ---------------------------------------------------------- */
.si-scope.si-project-modal {
    position: fixed;
    inset: 0;
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.si-scope.si-project-modal[hidden] {
    display: none;
}

.si-project-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(13, 13, 15, 0.88);
    backdrop-filter: blur(6px);
    cursor: pointer;
}

.si-project-modal__box {
    position: relative;
    z-index: 1;
    background: var(--si-bg-surface);
    border: 1px solid var(--si-border);
    border-radius: var(--si-radius-xl);
    width: 100%;
    max-width: 780px;
    max-height: 90vh;
    overflow-y: auto;
    overscroll-behavior: contain;
    box-shadow: 0 32px 100px rgba(0, 0, 0, 0.7);

    /* Entry animation */
    animation: modal-enter 0.4s var(--si-ease-out) both;
}

@keyframes modal-enter {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (prefers-reduced-motion: reduce) {
    .si-project-modal__box {
        animation: none;
    }
}

/* Close button */
.si-project-modal__close {
    position: sticky;
    top: 1rem;
    float: right;
    margin: 1rem 1rem 0 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--si-bg-elevated);
    border: 1px solid var(--si-border);
    color: var(--si-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition:
        color var(--si-dur-fast) var(--si-ease-out),
        border-color var(--si-dur-fast) var(--si-ease-out),
        background var(--si-dur-fast) var(--si-ease-out);
    z-index: 10;
}

.si-project-modal__close:hover {
    color: var(--si-text-primary);
    border-color: var(--si-accent-warm);
    background: rgba(212, 168, 83, 0.08);
}

.si-project-modal__close:focus-visible {
    outline: 2px solid var(--si-accent-warm);
    outline-offset: 2px;
}

/* Modal body (JS populates) */
.si-project-modal__body {
    padding: 0 2rem 2rem;
    clear: both;
}

/* Nav buttons */
.si-project-modal__nav {
    display: flex;
    justify-content: space-between;
    padding: 1rem 2rem 1.5rem;
    border-top: 1px solid var(--si-border);
}

.si-project-modal__nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--si-font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--si-text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem 0;
    transition: color var(--si-dur-fast) var(--si-ease-out);
}

.si-project-modal__nav-btn:hover {
    color: var(--si-accent-warm);
}

.si-project-modal__nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.si-project-modal__nav-btn:focus-visible {
    outline: 2px solid var(--si-accent-warm);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ----------------------------------------------------------
   Modal data content (copied into modal body by JS)
   ---------------------------------------------------------- */
.si-modal-data__image {
    border-radius: var(--si-radius-lg) var(--si-radius-lg) 0 0;
    overflow: hidden;
    margin: 0 -2rem;
    margin-bottom: 1.75rem;
}

.si-modal-data__image img {
    width: 100%;
    height: auto;
    max-height: 360px;
    object-fit: cover;
    display: block;
}

.si-modal-data__cats {
    list-style: none;
    padding: 0;
    margin: 0 0 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.si-modal-data__cat {
    font-family: var(--si-font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--si-accent-warm);
    border: 1px solid var(--si-accent-warm);
    border-radius: 4px;
    padding: 0.2em 0.6em;
}

.si-modal-data__title {
    font-family: var(--si-font-display);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 400;
    color: var(--si-text-primary);
    margin: 0 0 0.5rem;
    line-height: 1.2;
}

.si-modal-data__meta {
    font-size: 0.875rem;
    color: var(--si-text-secondary);
    margin: 0 0 2rem;
    display: flex;
    gap: 1rem;
}

.si-modal-data__year {
    color: var(--si-text-dim);
}

.si-modal-data__section {
    margin-bottom: 1.75rem;
    padding-bottom: 1.75rem;
    border-bottom: 1px solid var(--si-border);
}

.si-modal-data__section:last-of-type {
    border-bottom: none;
}

.si-modal-data__section-heading {
    font-family: var(--si-font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--si-accent-warm);
    margin: 0 0 0.75rem;
}

.si-modal-data__section-body {
    font-size: 0.95rem;
    color: var(--si-text-secondary);
    line-height: 1.75;
}

.si-modal-data__section-body p {
    margin: 0 0 0.75em;
}

.si-modal-data__section-body p:last-child {
    margin-bottom: 0;
}

.si-modal-data__tools {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.si-modal-data__tool {
    font-family: var(--si-font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--si-text-secondary);
    background: var(--si-bg-elevated);
    border: 1px solid var(--si-border);
    border-radius: var(--si-radius-sm);
    padding: 0.35em 0.8em;
}

.si-modal-data__actions {
    margin-top: 1.5rem;
}

/* ----------------------------------------------------------
   Approach Cards
   ---------------------------------------------------------- */
.si-scope .si-approach-cards__grid {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.si-scope .si-approach-card {
    background: var(--si-bg-elevated);
    border: 1px solid var(--si-border);
    border-radius: var(--si-radius-lg);
    padding: 2rem;
    transition:
        border-color var(--si-dur-med) var(--si-ease-out),
        transform var(--si-dur-med) var(--si-ease-out),
        box-shadow var(--si-dur-med) var(--si-ease-out);
}

.si-scope .si-approach-card:hover {
    border-color: var(--si-accent-warm);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.si-scope .si-approach-card__icon {
    color: var(--si-accent-warm);
    margin-bottom: 1.25rem;
    transition: transform var(--si-dur-med) var(--si-ease-out);
}

.si-scope .si-approach-card:hover .si-approach-card__icon {
    transform: scale(1.1);
}

.si-scope .si-approach-card__title {
    font-family: var(--si-font-display);
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--si-text-primary);
    margin: 0 0 0.75rem;
}

.si-scope .si-approach-card__body {
    font-size: 0.9rem;
    color: var(--si-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ----------------------------------------------------------
   Tools Grid
   ---------------------------------------------------------- */
.si-scope .si-tools-grid__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.si-scope .si-tool-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--si-bg-surface);
    border: 1px solid var(--si-border);
    border-radius: var(--si-radius-md);
    padding: 1rem 1.25rem;
    transition:
        border-color var(--si-dur-fast) var(--si-ease-out),
        transform var(--si-dur-fast) var(--si-ease-out);
}

.si-scope .si-tool-item:hover {
    border-color: rgba(212, 168, 83, 0.3);
    transform: translateY(-2px);
}

.si-scope .si-tool-item__badge {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--si-radius-sm);
    background: color-mix(in srgb, var(--tool-color) 15%, transparent);
    border: 1px solid color-mix(in srgb, var(--tool-color) 30%, transparent);
    color: var(--tool-color);
    font-family: var(--si-font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    transition: transform var(--si-dur-fast) var(--si-ease-out);
}

.si-scope .si-tool-item:hover .si-tool-item__badge {
    transform: scale(1.08);
}

.si-scope .si-tool-item__info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 0;
}

.si-scope .si-tool-item__name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--si-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.si-scope .si-tool-item__detail {
    font-size: 0.78rem;
    color: var(--si-text-dim);
    line-height: 1.4;
}

/* ----------------------------------------------------------
   Awards
   ---------------------------------------------------------- */
.si-scope .si-awards__list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.si-scope .si-award-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    background: var(--si-bg-elevated);
    border: 1px solid var(--si-border);
    border-radius: var(--si-radius-lg);
    padding: 2rem 2.5rem;
}

.si-scope .si-award-item__badge {
    flex-shrink: 0;
    filter: drop-shadow(0 0 12px rgba(212, 168, 83, 0.4));
    transition: filter var(--si-dur-med) var(--si-ease-out);
}

.si-scope .si-award-item:hover .si-award-item__badge {
    filter: drop-shadow(0 0 20px rgba(212, 168, 83, 0.65));
}

.si-scope .si-award-item__org {
    font-family: var(--si-font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--si-text-dim);
    margin: 0 0 0.5rem;
}

.si-scope .si-award-item__title {
    font-family: var(--si-font-display);
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    font-weight: 400;
    margin: 0 0 0.4rem;
    line-height: 1.2;
}

.si-scope .si-award-item__project {
    font-size: 0.9rem;
    color: var(--si-accent-warm);
    font-weight: 600;
    margin: 0 0 1rem;
}

.si-scope .si-award-item__desc {
    font-size: 0.9rem;
    color: var(--si-text-secondary);
    line-height: 1.75;
    margin: 0;
}

/* Gold shimmer for award title */
@keyframes si-shimmer {
    0%   { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.si-scope .si-shimmer {
    background: linear-gradient(
        110deg,
        var(--si-accent-warm) 0%,
        var(--si-accent-glow) 42%,
        #FFF8E7 50%,
        var(--si-accent-glow) 58%,
        var(--si-accent-warm) 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: si-shimmer 3s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
    .si-scope .si-shimmer {
        animation: none;
        -webkit-text-fill-color: var(--si-accent-warm);
    }
}

/* ----------------------------------------------------------
   Education Timeline
   ---------------------------------------------------------- */
.si-scope .si-education-timeline__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.si-scope .si-edu-item {
    display: flex;
    gap: 1.5rem;
}

.si-scope .si-edu-item__connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    width: 24px;
    padding-top: 0.35rem;
}

.si-scope .si-edu-item__dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--si-accent-warm);
    border: 3px solid var(--si-bg-deep);
    box-shadow: 0 0 0 1px var(--si-accent-warm);
    flex-shrink: 0;
    transition: box-shadow var(--si-dur-med) var(--si-ease-out);
}

.si-scope .si-edu-item--in-progress .si-edu-item__dot {
    background: transparent;
    border-color: var(--si-accent-warm);
    box-shadow: 0 0 0 1px var(--si-accent-warm), 0 0 8px rgba(212, 168, 83, 0.4);
}

.si-scope .si-edu-item__line {
    width: 2px;
    flex: 1;
    min-height: 2rem;
    background: linear-gradient(to bottom, var(--si-accent-warm), var(--si-border));
    margin: 4px 0;
}

.si-scope .si-edu-item__body {
    padding-bottom: 2.5rem;
    flex: 1;
}

.si-scope .si-edu-item__meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.4rem;
}

.si-scope .si-edu-item__year {
    font-family: var(--si-font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--si-text-dim);
    letter-spacing: 0.08em;
}

.si-scope .si-edu-item__result {
    font-family: var(--si-font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 4px;
    padding: 0.2em 0.6em;
}

.si-scope .si-edu-item__result--complete {
    color: var(--si-success);
    background: rgba(126, 200, 155, 0.1);
    border: 1px solid rgba(126, 200, 155, 0.3);
}

.si-scope .si-edu-item__result--in-progress {
    color: var(--si-accent-warm);
    background: rgba(212, 168, 83, 0.1);
    border: 1px solid rgba(212, 168, 83, 0.3);
}

.si-scope .si-edu-item__qualification {
    font-family: var(--si-font-display);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--si-text-primary);
    margin: 0 0 0.25rem;
    line-height: 1.3;
}

.si-scope .si-edu-item__institution {
    font-size: 0.875rem;
    color: var(--si-accent-warm);
    font-weight: 600;
    margin: 0 0 0.75rem;
}

.si-scope .si-edu-item__note {
    font-size: 0.875rem;
    color: var(--si-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ----------------------------------------------------------
   Responsive
   ---------------------------------------------------------- */
@media (max-width: 680px) {

    .si-scope .si-portfolio-grid-section__inner,
    .si-scope .si-approach-cards__inner,
    .si-scope .si-tools-grid__inner,
    .si-scope .si-awards__inner,
    .si-scope .si-education-timeline__inner {
        padding: 3.5rem 1.25rem;
    }

    .si-scope .si-award-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.25rem;
        padding: 1.5rem;
    }

    .si-project-modal__box {
        border-radius: var(--si-radius-lg);
        max-height: 95vh;
    }

    .si-project-modal__body {
        padding: 0 1.25rem 1.5rem;
    }

    .si-project-modal__nav {
        padding: 1rem 1.25rem;
    }

    .si-modal-data__image {
        margin: 0 -1.25rem;
    }
}

@media (max-width: 480px) {
    .si-scope .si-portfolio-grid {
        grid-template-columns: 1fr;
    }
}