/* Simulations list page — @layer split: theme (colors) + components (layout) */

/* Theme layer — colors, backgrounds, shadows only */
@layer theme {
    .simulations-page {
        .simulations-header {
            .header-icon {
                background: linear-gradient(135deg,
                    light-dark(oklch(from var(--accent-primary) l c h / 0.15), oklch(from var(--accent-primary) l c h / 0.25)),
                    light-dark(oklch(from var(--accent-warm) l c h / 0.08), oklch(from var(--accent-warm) l c h / 0.15)));
                border-color: light-dark(oklch(from var(--accent-primary) l c h / 0.2), oklch(from var(--accent-primary) l c h / 0.35));
                color: var(--accent-primary);
                box-shadow: 0 4px 18px light-dark(oklch(from var(--accent-primary) l c h / 0.1), oklch(from var(--accent-primary) l c h / 0.2));
            }

            h1::after {
                background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-warm) 55%, transparent 100%);
                box-shadow: 0 0 12px oklch(from var(--accent-primary) l c h / 0.4);
            }

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

        .assignment-card {
            background: light-dark(oklch(100% 0 0 / 0.7), oklch(100% 0 0 / 0.04));
            backdrop-filter: blur(12px);
            border-color: oklch(from var(--glass-tint) l c h / 0.08);
            box-shadow: var(--shadow-sm), inset 0 1px 0 oklch(from var(--glass-tint) l c h / 0.05);

            &:hover {
                border-color: oklch(from var(--accent-primary) l c h / 0.3);
                box-shadow: var(--shadow-md), inset 0 1px 0 oklch(from var(--glass-tint) l c h / 0.05);
            }

            .card-left {
                background: linear-gradient(135deg,
                    light-dark(oklch(from var(--accent-primary) l c h / 0.06), oklch(from var(--accent-primary) l c h / 0.12)),
                    light-dark(oklch(from var(--accent-warm) l c h / 0.03), oklch(from var(--accent-warm) l c h / 0.06)));
                border-inline-end-color: oklch(from var(--glass-tint) l c h / 0.08);

                .card-industry-icon {
                    background: linear-gradient(135deg,
                        oklch(from var(--accent-primary) l c h / 0.2),
                        oklch(from var(--accent-warm) l c h / 0.1));
                    border-color: oklch(from var(--accent-primary) l c h / 0.25);
                    color: var(--accent-primary);
                    box-shadow: 0 4px 16px oklch(from var(--accent-primary) l c h / 0.15);
                }

                .card-role {
                    color: var(--text-primary);
                }

                .card-industry {
                    color: var(--text-secondary);
                }
            }

            .card-right {
                .card-title {
                    color: var(--text-primary);
                }

                .card-description {
                    color: var(--text-secondary);
                }
            }
        }

        .status-badge {
            &.status-badge--active {
                color: var(--color-success);
                background: oklch(from var(--color-success) l c h / 0.1);
                border-color: oklch(from var(--color-success) l c h / 0.2);
            }

            &.status-badge--completed {
                color: var(--color-info);
                background: oklch(from var(--color-info) l c h / 0.1);
                border-color: oklch(from var(--color-info) l c h / 0.2);
            }

            &.status-badge--pending {
                color: var(--text-secondary);
                background: oklch(from var(--glass-tint) l c h / 0.04);
                border-color: oklch(from var(--glass-tint) l c h / 0.1);
            }
        }

        .meta-badge {
            background: oklch(from var(--glass-tint) l c h / 0.04);
            border-color: oklch(from var(--glass-tint) l c h / 0.08);
            color: var(--text-secondary);
        }

        .skills-tags {
            .skill-chip {
                background: oklch(from var(--accent-primary) l c h / 0.1);
                border-color: oklch(from var(--accent-primary) l c h / 0.2);
                color: var(--accent-primary);

                &.skill-chip--more {
                    background: oklch(from var(--glass-tint) l c h / 0.04);
                    border-color: oklch(from var(--glass-tint) l c h / 0.1);
                    color: var(--text-secondary);
                }
            }
        }

        .progress-section {
            .progress-header {
                .progress-label {
                    color: var(--text-secondary);
                }

                .progress-value {
                    color: var(--text-primary);
                }
            }

            .progress-bar {
                background: oklch(from var(--glass-tint) l c h / 0.08);

                .progress-fill {
                    background: linear-gradient(90deg, var(--accent-primary), var(--accent-warm));
                }
            }
        }

        .action-button {
            &.action-button--start {
                background: linear-gradient(135deg,
                    light-dark(oklch(55% 0.22 25), oklch(65% 0.2 25)),
                    light-dark(oklch(50% 0.24 15), oklch(60% 0.22 15)));
                color: white;
                box-shadow: 0 4px 20px light-dark(oklch(55% 0.22 25 / 0.25), oklch(65% 0.2 25 / 0.3)),
                            inset 0 1px 0 oklch(100% 0 0 / 0.1);

                &:hover {
                    box-shadow: 0 6px 28px light-dark(oklch(55% 0.22 25 / 0.35), oklch(65% 0.2 25 / 0.45)),
                                inset 0 1px 0 oklch(100% 0 0 / 0.15);
                    color: white;
                }
            }

            &.action-button--completed {
                background: oklch(from var(--glass-tint) l c h / 0.04);
                color: var(--text-secondary);
                border-color: oklch(from var(--glass-tint) l c h / 0.08);
            }
        }

        .empty-state {
            .empty-icon {
                background: oklch(from var(--glass-tint) l c h / 0.04);
                border-color: oklch(from var(--glass-tint) l c h / 0.08);
                color: var(--text-secondary);
            }

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

/* Components layer — layout, sizing, spacing only */
@layer components {
    .simulations-page {
        position: relative;
        max-inline-size: 900px;
        margin-inline: auto;
        padding: var(--space-xl) var(--space-lg);
        min-block-size: calc(100dvb - 80px);

        .simulations-header {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: var(--space-lg);
            margin-block-end: var(--space-2xl);

            .header-icon {
                display: flex;
                align-items: center;
                justify-content: center;
                inline-size: 56px;
                block-size: 56px;
                border-radius: 16px;
                border: 1px solid;
                flex-shrink: 0;
            }

            h1 {
                font-family: var(--font-heading);
                font-size: var(--fs-xxl);
                font-weight: var(--fw-bold);
                letter-spacing: -0.02em;
                position: relative;

                &::after {
                    content: '';
                    position: absolute;
                    inset-inline-start: 0;
                    inset-block-end: -4px;
                    inline-size: 100%;
                    block-size: 3px;
                    border-radius: 3px;
                }
            }

            .welcome-text {
                font-size: var(--fs-small);
                margin-block-start: var(--space-3xs);
            }
        }

        /* Assignments grid — vertical stack */
        .assignments-grid {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: var(--space-lg);
        }

        /* Assignment card */
        .assignment-card {
            display: flex;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;

            .card-left {
                flex-shrink: 0;
                inline-size: 200px;
                padding: var(--space-xl);
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                text-align: center;
                gap: var(--space-sm);
                border-inline-end: 1px solid;

                .card-industry-icon {
                    display: flex;
                    align-items: center;
                    justify-content: center;
                    inline-size: 64px;
                    block-size: 64px;
                    border-radius: 50%;
                    border: 1px solid;
                }

                .card-role {
                    font-family: var(--font-heading);
                    font-weight: var(--fw-semibold);
                    font-size: var(--fs-small);
                }

                .card-industry {
                    font-size: var(--fs-xsmall);
                }
            }

            .card-right {
                flex: 1;
                padding: var(--space-xl);
                display: flex;
                flex-direction: column;
                gap: var(--space-md);

                .card-top {
                    display: flex;
                    justify-content: space-between;
                    align-items: flex-start;
                }

                .card-title {
                    font-family: var(--font-heading);
                    font-size: var(--fs-xl);
                    font-weight: var(--fw-semibold);
                    margin-block-end: var(--space-xs);
                }

                .card-meta {
                    display: flex;
                    flex-wrap: wrap;
                    align-items: center;
                    gap: var(--space-sm);
                }

                .card-description {
                    font-size: var(--fs-small);
                    line-height: 1.6;
                    display: -webkit-box;
                    -webkit-line-clamp: 2;
                    -webkit-box-orient: vertical;
                    overflow: hidden;
                }

                .card-footer {
                    display: flex;
                    align-items: center;
                    justify-content: space-between;
                    margin-block-start: auto;
                }
            }
        }

        /* Status badges */
        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: var(--fs-xsmall);
            font-weight: var(--fw-semibold);
            border: 1px solid;
        }

        /* Meta badges (difficulty, duration) */
        .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: var(--fs-xsmall);
            border: 1px solid;
            text-transform: capitalize;
        }

        /* Skills tags */
        .skills-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;

            .skill-chip {
                padding: 4px 10px;
                border-radius: 8px;
                font-size: var(--fs-xxsmall);
                font-weight: var(--fw-medium);
                border: 1px solid;
            }
        }

        /* Progress bar */
        .progress-section {
            flex: 1;
            margin-inline-end: var(--space-lg);

            .progress-header {
                display: flex;
                justify-content: space-between;
                align-items: center;
                margin-block-end: 4px;
                font-size: var(--fs-xsmall);

                .progress-value {
                    font-weight: var(--fw-semibold);
                }
            }

            .progress-bar {
                block-size: 8px;
                border-radius: 100px;
                overflow: hidden;

                .progress-fill {
                    block-size: 100%;
                    border-radius: 100px;
                    transition: inline-size 0.5s ease;
                }
            }
        }

        /* Action buttons */
        .action-button {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 12px;
            font-family: var(--font-heading);
            font-weight: var(--fw-semibold);
            font-size: var(--fs-small);
            text-decoration: none;
            cursor: pointer;
            flex-shrink: 0;
            transition: all 0.3s ease;

            &.action-button--start {
                border: none;

                &:hover {
                    transform: translateY(-2px);
                }

                svg {
                    transition: transform 0.25s ease-out;
                }

                &:hover svg {
                    transform: translateX(3px);
                }
            }

            &.action-button--completed {
                border: 1px solid;
                cursor: default;
            }
        }

        /* Empty state */
        .empty-state {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: var(--space-3xl) var(--space-xl);

            .empty-icon {
                display: flex;
                align-items: center;
                justify-content: center;
                inline-size: 80px;
                block-size: 80px;
                margin-inline: auto;
                margin-block-end: var(--space-lg);
                border-radius: 50%;
                border: 1px solid;
            }

            h2 {
                font-family: var(--font-heading);
                font-size: var(--fs-xl);
                font-weight: var(--fw-semibold);
                margin-block-end: var(--space-sm);
            }

            p {
                font-size: var(--fs-small);
            }

            .empty-hint {
                margin-block-start: var(--space-sm);
                font-size: var(--fs-xsmall);
                opacity: 0.7;
            }
        }
    }

    /* Responsive: stack card panels on mobile */
    @media (max-width: 640px) {
        .simulations-page {
            padding: var(--space-lg) var(--space-md);

            .simulations-header {
                flex-direction: column;
                text-align: center;
            }

            .assignment-card {
                flex-direction: column;

                .card-left {
                    inline-size: 100%;
                    padding: var(--space-lg);
                    border-inline-end: none;
                    border-block-end: 1px solid oklch(from var(--glass-tint) l c h / 0.08);
                    flex-direction: row;
                    gap: var(--space-md);

                    .card-industry-icon {
                        inline-size: 48px;
                        block-size: 48px;
                    }
                }

                .card-right {
                    .card-footer {
                        flex-direction: column;
                        gap: var(--space-md);
                        align-items: stretch;

                        .progress-section {
                            margin-inline-end: 0;
                        }

                        .action-button {
                            justify-content: center;
                        }
                    }
                }
            }
        }
    }
}